This document discusses the seismic behavior of steel structures with different bracing systems and irregularities. It analyzes 3D models of 8, 10, and 12 story steel buildings with rectangular and C-shaped plans in zones III, IV, and V, with and without X-bracing and K-bracing systems. The models with vertical irregularities are analyzed for lateral displacement and story drift. Results show story drift increases with zone intensity, number of stories, and vertical irregularity. Bracing systems reduce drift compared to no bracing, with K-bracing having slightly higher drift than X-bracing. Lateral displacement and story drift also increase from lower to higher zones due to increasing seismic intensity.
IRJET- Comparative Analysis on Seismic Behaviour of Regular and Verticall...IRJET Journal
The document compares the seismic behavior of regular and vertically irregular reinforced concrete framed buildings with and without shear walls through structural analysis. Eight building models are created - regular and irregular structures both with and without shear walls in different locations. Equivalent static analysis and response spectrum analysis are performed to obtain seismic responses like base shear, storey shear, storey displacement, storey drift, and time period. Results show that structures with shear walls experience less seismic response compared to structures without shear walls. Irregular structures with shear walls also show lower responses than regular structures.
A COMPARATIVE STUDY OF OMRF & SMRF STRUCTURAL SYSTEM USING DIFFERENT SOFTWARESAM Publications
This study is carried out to investigate the seismic behaviour of the structure having various structural configurations
like OMRF (Ordinary Moment Resisting Frames), SMRF (Special Moment Resisting Frames) using different softwares i.e.
Stadd.Pro & Etabs. A comparative study of all the types of frames will shed light on the best suited frame to be adopted for seismic
loads in Indian scenario. For this purpose, a G+6 storey R.C.C. regular building are analysed for OMRCF, SMRCF framing
configurations in Seismic Zone III & IV according to Indian codes. Linear static Analysis or Equivalent static Analysis are carried
out to evaluate their structural efficiencies in terms of storey drifts, average storey displacement, Time period. In OMRF structures
the design and detailing of reinforcement are executed as per the guide lines of I.S. 456-2000 which make the structure less tough
and ductile in comparison of SMRF structures. The basic approach of earthquake resistant design should be based on lateral
strength as well as deformability and ductility capacity of structure .In SMRF structures Beams, columns, and beam-column joints
are proportioned and detailed as per I.S. code 13920(2002) which give adequate toughness and ductility to resist severe earthquake
shock without collapse. Thus it has been observed that SMRF structures behave well in earthquake than OMRF structures.
The Study on Behaviour of Outriggers for Tall Buildings Subjected to Lateral ...IRJET Journal
1) The document discusses the use of outriggers in tall buildings to reduce structural damage from lateral loads like wind and seismic loads.
2) Outriggers connect the central core wall to exterior columns, increasing the building's stiffness and resistance to overturning moments from lateral loads.
3) Studies show that using multiple outriggers and optimizing their placement can significantly reduce building deflection, drift, and core wall bending moments compared to buildings without outriggers. Virtual outrigger systems using belt trusses can also provide benefits while avoiding issues of conventional outrigger designs.
IRJET- Seismic Response of Flat Slab Buildings with Shear WallIRJET Journal
This document presents a study on the seismic response of flat slab buildings with shear walls. Response spectrum analysis and pushover analysis were conducted on flat slab building models and regular framed building models using ETABS software. The results show that flat slab buildings have higher displacement and lower base shear capacity compared to regular framed buildings. However, the addition of shear walls improves the seismic performance of flat slab buildings. Specifically, a flat slab building with a shear wall at its core location performed best with the lowest displacement, while exterior and interior shear wall locations had progressively higher displacement. Both linear and nonlinear analysis confirmed that shear walls increase the strength and seismic resistance of flat slab structures.
IRJET- A Parametric Study on the Siesmic Performance of Flat Slab Multi-S...IRJET Journal
This document summarizes a research paper that analyzes the seismic performance of 10-story flat slab buildings with bracing subjected to different types of irregularities.
The paper models a regular flat slab building and flat slab buildings with vertical geometric irregularities, stiffness irregularities, and torsional irregularities using ETABS software. Response spectrum analysis is performed to analyze story drift, time period, story displacement, base shear, and story stiffness.
The results show that the building with torsional irregularities experienced the highest story displacements, around 24% more than the regular building. Buildings with vertical geometric and stiffness irregularities also had increased story displacements compared to the regular building, but to a lesser extent.
IRJET- Comparative Analysis of Moment Resisting Frames of Steel and Composit...IRJET Journal
This document compares moment resisting frames made of steel composite materials and reinforced concrete (RC) under seismic loading. Four models each of a G+10 and G+20 building were analyzed with ETABS software - two as ordinary moment resisting frames (OMRF) and two as special moment resisting frames (SMRF). Results for steel composite frames showed lower displacement, drift, and shear compared to RC frames, but within acceptable limits. Steel composite structures provide advantages over RC structures such as reduced weight, cost, and faster construction for high-rise buildings.
IRJET- Study on Effective Seismic Retrofitting for High Rise Steel Frame with...IRJET Journal
The document presents a study on improving the seismic performance of high-rise steel buildings through different bracing systems. It models a G+8 steel building in different configurations - without bracing and with diagonal, X, and V bracing using angle and tube sections - and analyzes them using STAAD Pro software. The results show that V-bracing reduces maximum nodal displacement, drift displacement, and drift ratio the most compared to other bracing types or no bracing. V-bracing with an angle section performs slightly better than with a tube section of the same area. Overall, the study demonstrates that bracing systems, and V-bracing in particular, significantly improve a steel building's ability to resist seismic
IRJET- Seismic Performance Assessment of Multi-Storeyed RC Special Moment...IRJET Journal
This document summarizes a study that used pushover analysis to assess the seismic performance of special and ordinary moment resisting frames (SMRF and OMRF). SAP2000 software was used to model and analyze multi-storey RC frames. The study found that SMRF exhibited less plastic hinge formation and lower joint displacements compared to OMRF under seismic loading, indicating better seismic performance. No plastic hinges were observed in SMRF, while OMRF showed yielding at supports. The results validate the higher response reduction factor assigned to SMRF by Indian codes.
Study of Steel Moment Resisting Frame with Reduced Beam SectionIJERA Editor
This document summarizes a study on modeling and analyzing a 15-story steel building with and without reduced beam sections (RBS) using time history analysis. The study found that using RBS increased the building's time period by 25% and increased deflections and drifts compared to a building with regular beams. However, base shear was nearly identical between the two buildings. While RBS increased deformations, it also reduced the total steel material needed by about 11.5 tons, providing a cost savings of around $7,480. Therefore, RBS can improve seismic performance by shifting plastic hinging away from beam-column connections while also offering a cost benefit from reduced material.
IRJET- Analyzing the Effect of Steel Bracing in Plan Irregular Steel Structur...IRJET Journal
The document analyzes the effect of steel bracing in irregular steel structures subjected to lateral loads. Five bracing systems are considered: X, V, inverted V, and two types of diagonal bracing. Dynamic time history analysis and equivalent static analysis are performed using ETABS. Key results like modal time periods, displacements, drifts, and base forces are extracted and compared. The use of X bracing shows better performance in resisting lateral loads, with lower displacements and drifts compared to other bracing systems and the bracing-less steel moment frame.
Effect of infill walls on the seismic performance of the multistoried buildingseSAT Journals
Abstract The most commonly used structural system in our country for almost all types of building are multi-storey reinforced concrete frames with masonry infills. Therefore it is essential to understand the seismic behaviour of these structures when subjected to lateral forces. Several research works has been done on the masonry infilled reinforced concrete frames in the past decades. Mortar is used as a binder in normal brick construction in order to create continuous structural form and to bind together the individual units in brickwork. In the present study, analysis has been carried out by considering the increase in height of building from five to ten storied by using finite element software ANSYS 14.5. The seismic analysis of multi-storeyed building frames with infill walls and without infill walls are conducted. 3D analysis will give more realistic values of deflection and stresses. Since this type of study is not feasible in terms of analysis time taken, 2D model was adopted for the present study. A three bay two dimensional building frame is considered with the number of stories varying from 5 storied to 10 storied. The loading applied is as per IS 1893 (Part I): 2002. Equivalent diagonal strut method is adopted for modelling infill walls. The results showed that there is considerable decrease in deflection when infills are used in RC frames. Key Words: Deflection , Equivalent diagonal strut method, lateral load, Solid brick infills, Storey drift
Significance of shear wall in flat slab multi storied building - A ReviewIRJET Journal
This document summarizes research on the significance of shear walls in flat slab multi-story buildings. It begins with an abstract discussing the increased use of flat slab construction in tall buildings and how shear walls provide stability against lateral loads like wind and earthquakes. The document then reviews the theoretical background of flat slab construction and shear walls as bracing methods. It also summarizes several previous studies examining the effects of openings in shear walls, use of flat slabs in seismic zones, and different shear wall configurations. The literature review found that shear walls can effectively resist lateral loads and reduce displacement, with exterior corner placements performing best.
A comparative study of the effect of infill walls on seismic performance of reiIAEME Publication
This document discusses a comparative study on the effect of infill walls on the seismic performance of reinforced concrete buildings. It summarizes different approaches to modeling infill walls as equivalent diagonal struts, including elastic analysis, ultimate load, plastic analysis, and finite element analysis approaches. The key findings are that infill walls reduce displacements and time period while increasing base shear. Modeling the strength and stiffness of infill walls is important for accurately analyzing seismic behavior, as ignoring infill walls can lead to unconservative design of soft-story buildings.
Effect of concentric and eccentric type of bracings on performance based seis...eSAT Journals
Abstract When a tall building is subjected to lateral or torsional deflections under the action of seismicloads, the resulting oscillatory movement can induce a wide range of responses in the building’s occupants.[1]As a result, lateral stiffness is a major consideration in the design of tall buildings. Bracing is a highly efficient and economical method of resisting lateral forces in a frame structure. In this present study, the effect of four different types of bracing systems have been studied, for the use in SMRF RC framed building situated in seismic zone IV, in order to provide lateral stiffness and results in terms of storey shears and storey drifts have been presented. Keywords: RC Building, Concentric and Eccentric Bracings, Storey Drift,Storey Shear, Pushover Curves.
A comparative study of omrf & smrf structural system for tall & high ...eSAT Journals
Abstract The objective of this study is to investigate the seismic behavior of the structure i.e... OMRF (Ordinary moment resisting frame) & SMRF (Special R C moment Resisting frame). For this purpose 5th, 10th, 15th , 20th storied structure were modeled and analysis was done using Staad.Pro software and using the codes for analysis, IS 1893:2002, IS 456: 2000. The study assumed that the buildings were located in seismic zone II (Visakhapatnam region).The study involves the design of alternate shear wall in a structural frame and its orientation, which gives better results for the OMRF & SMRF structure constructed in and around Visakhapatnam region. The buildings are modeled with floor area of 600 sqm (20m x30m) with 5 bays along 20 m span each 4 m. and 5 bays along the 30 m span each 6 m. The design is carried out using STAAD.PRO software. Shear walls are designed by taking the results of the maximum value of the stress contour and calculation are done manually by using IS 456-2000 and IS 13920-1993. The displacements of the current level relative to the other level above or below are considered. The preferred framing system should meet drift requirements.
1. Up to 20 floored building subjected to seismic load for Visakhapatnam without shear wall
2. Up to 20 floored building subjected to seismic load for Visakhapatnam with shear wall
Key words: Seismic Behavior, Shear Wall, Orientation of shear wall, Story Drift, Serviceability. staad.pro
Seismic Analysis of a High-rise RC Framed Structure with IrregularitiesIRJET Journal
This document summarizes a study on seismic analysis of a 50-story irregular reinforced concrete (RC) framed structure. Various types of structural irregularities were considered, including mass irregularity, vertical geometric irregularity, re-entrant corners, diaphragm discontinuity, and stiffness irregularity. The structure was modeled and analyzed using ETABS software. Results showed increased seismic responses like displacement, drift, and period for irregular structures compared to a regular structure. Specifically, the re-entrant corner structure performed worst with highest displacement and drift due to its irregular geometry. Mass irregularity resulted in highest base shear. Stiffness irregularity led to longest period. In conclusion, regular structures performed better than irregular structures under seismic loads
Influence of Outrigger system in RC Structures for Different Seismic ZonesIRJET Journal
This document analyzes the influence of outrigger systems in reinforced concrete structures in different seismic zones. It models and analyzes a 35-story building with and without outriggers using finite element software. The outrigger system is varied by changing the relative stiffness ratio (do/d) from 1 to 5 at different heights. Results show lateral displacement, inter-story drift, and base shear decrease as relative stiffness increases in all zones. Maximum reductions occur in Zone 5, while differences between zones are small. Inter-story drift is highest between 5-15m. Base shear is highest for the stiffest outrigger model and lowest for the bare frame. In conclusion, outrigger systems effectively reduce displacement and drift, while increasing base
Effect of steel bracing on vertically irregular r.c.c building frames under s...eSAT Journals
Abstract
Earthquakes are one of the most life threatening, environmental hazardous and destructive natural phenomenons that causes
shaking of ground. This result in damage to the structures, hence we need to design the buildings to withstand these earthquakes
which may occur at least once in the life time of the structure. Structures possess less stiffness and strength in case of irregular
configured frames; to enhance this, lateral load resisting systems are introduced into the frames. In this study, G+5 storey
building model has been analyzed considering different types of vertical geometric irregularities and steel bracings using
pushover analysis with the help of ETABS 9.7 software. Addition of X type brace, V type Brace and Inverted V/K type brace shows
that use of X-type of bracing is found more suitable to enhance the performance of the irregular buildings.
Key Words: pushover analysis, vertical irregularity, steel bracings, performance point.
Numerical modeling on behaviour of reinforced concrete exterior beam column j...eSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
IRJET- Retrofitting of Reinforced Concrete Frames using different X Braci...IRJET Journal
This document discusses retrofitting an existing reinforced concrete industrial building in seismic zone III of India using different X bracing configurations. The building is modeled in ETABS software and analyzed using equivalent static analysis both without bracing and with different X bracing configurations including alternate, corner, and middle bracing systems. Results are compared in terms of lateral displacement, story drift, bending moment, shear force, axial force, and story stiffness. It is found that lateral displacement and story drift are reduced the most, by around 75%, for the middle bracing configuration compared to the unbraced structure, indicating it provides the best seismic performance improvement through retrofitting.
Influence of Bracings on the Seismic Behavior of RC Framed Irregular StructuresIRJET Journal
This document discusses the influence of bracings on the seismic behavior of reinforced concrete framed irregular structures. It analyzes five structural configurations - regular, L-shaped, T-shaped, setback, and soft-story structures - with and without X, V, and K bracings using response spectrum and time history methods in ETABS software. The results show that irregular structures perform poorer than regular structures in terms of modal periods, displacements, drifts, and forces. However, adding bracings, particularly X bracings, improves seismic performance by reducing periods, displacements, and drifts for all models. X bracings are found to be most effective at strengthening seismic resistance of irregular structures compared to V
IRJET- Comparative Study of Different Bracing Systems in RCC Buildings using ...IRJET Journal
This document compares the seismic behavior of reinforced concrete buildings with different bracing systems using STAAD.Pro software. Four 15-story building models are analyzed: a moment resisting frame building and buildings with X-bracing, V-bracing, and diagonal bracing. The bracing systems are found to increase base shear and reduce story displacement compared to the non-braced building, indicating improved seismic performance. Of the braced buildings, the one with X-bracing performs best with the lowest displacements and highest base shear. The study concludes X-bracing is the most effective bracing system for seismic resistance of tall reinforced concrete buildings.
Study on Behavior of Tubular Diagrid Structures During Seismic ExcitationIRJET Journal
This document summarizes a study on the behavior of tubular diagrid structures during seismic excitation. It models a 50-story structure with varying diagrid angles in ETABS and analyzes seismic performance parameters. The study finds that a diagrid angle of 60 degrees performs best, with lower displacement, drift, and base shear compared to models with 45 and 75 degree diagrids or no diagrid. Analyzing lateral displacement, story drift, time period, and base shear allows determining the most effective seismic resistant system.
IRJET- Analysis of G+20 RCC Bare Framed Structures with Different Types o...IRJET Journal
This document analyzes a G+20 reinforced concrete framed structure with different bracing systems (inverted V, diagonal, K, X, and V braces) in different seismic zones (II, III, IV, and V) using STAAD Pro v8i software. The X bracing system performed best by reducing displacement by up to 75%, increasing base shear by up to 17.6%, and reducing story drift by up to 74.9% compared to the bare frame structure. While other bracing systems provided improvements, X bracing provided the most economic and effective performance overall.
Seismic Behavior of Steel Frame Structure with and Without BracingIRJET Journal
This document summarizes a study on the seismic behavior of steel frame structures with and without bracing. A 21-story steel building model was analyzed using ETABS software under seismic zone III conditions with different soil types. The building's plan was 35m x 35m with a floor height of 3.2m. Response spectrum analysis was used to analyze the building with different bracing configurations including X, V, inverted V, and without bracing. Story drift, displacement, and base shear were compared for each configuration. The results showed that braced frames had reduced drift and displacement compared to unbraced frames, with X-bracing performing most efficiently. Bracing improved the seismic performance of steel structures by increasing their lateral stiffness
IRJET- Comparative Study of Different Types of Bracing and Regular RCC St...IRJET Journal
This document compares the structural performance of a 15-story building with and without different types of bracing through computer modeling and analysis. Four models are analyzed: one without bracing and three with different bracing configurations (X, V, and diagonal forward bracing). Response spectrum analysis is conducted using ETABS 2015 software to determine story drift, displacement, base shear, and time period. Results show that braced models experience less displacement and drift than the unbraced model, but higher base shear. The X-braced model generally performs best in reducing responses, while natural period decreases for all braced models compared to the unbraced model.
IRJET- Seismic Performance of RC & Composite Frames with Plan Irregular Confi...IRJET Journal
This document compares the seismic performance of reinforced concrete (RC) frames and composite frames with irregular floor plans located in an earthquake zone. 12 models of G+10 story buildings were analyzed (6 RC and 6 composite) using ETABS software. The models had different irregular floor plan configurations including C-shaped, U-shaped, L-shaped, T-shaped, plus-shaped and hollow shapes. Response spectrum analysis was performed. Results for time period, base shear, story shear, displacements, drifts and axial forces were compared between the RC and composite frames. The composite frames showed lower time periods, displacements, drifts and axial forces compared to the RC frames, but higher base shear and story shear due to their
Performance of Short-Leg Shear Wall and Bare Frames in Irregular RC StructuresIRJET Journal
This document presents the results of a study that used pushover analysis in ETABS to examine the structural performance of irregular RC structures with and without short-leg shear walls. Models of step-shaped, U-shaped, L-shaped, and T-shaped plans were analyzed, with and without short-leg shear walls included. The analysis found that inclusion of short-leg shear walls improved structural performance by increasing the base shear capacity and roof displacement at maximum base shear. Asymmetry in building elevation also decreased structural performance for bare frame models compared to symmetric models. Inclusion of short-leg shear walls was shown to improve performance of irregular structures.
IRJET-Lateral Stability of High Rise Steel Buildings using E TABSIRJET Journal
This document summarizes a study on improving the lateral stability of high-rise steel buildings using different bracing systems. A 15-story steel building model was created and analyzed using ETABS software under wind and earthquake loads, with no bracing, X-bracing, and V-bracing. Results found that displacement was higher without bracing compared to braced models. X-bracing experienced higher lateral loads under wind, while V-bracing performed better under earthquake loads. More research is needed to further evaluate bracing systems for improving lateral stability of high-rise steel structures.
Analysis of Seismic Behaviors of RC Frame Structure With Bracing System and W...IRJET Journal
This document analyzes the seismic behavior of reinforced concrete frame structures with and without steel bracing systems. A G+23 square building is modeled in Etabs with beam and column dimensions of 300mm x 400mm and 300mm x 500mm respectively. The building is analyzed using response spectrum analysis as per Indian codes for different bracing configurations including no bracing, X bracing, V bracing, inverted V bracing, and eccentric bracing. Results show that maximum storey displacements are lowest for structures with inverted V and V bracing systems, followed by X bracing. The non-braced structure experiences the highest displacements, confirming that bracing systems effectively reduce seismic responses of RC frames.
Analysis of Seismic Behaviors of RC Frame Structure With Bracing System and W...IRJET Journal
The document analyzes the seismic behavior of reinforced concrete frame structures with and without steel bracing systems. A G+23 square building is modeled in Etabs with beam and column dimensions of 300mm x 400mm and 300mm x 500mm respectively. The building is analyzed using response spectrum analysis as per Indian codes for different bracing configurations including no bracing, X bracing, V bracing, inverted V bracing. Storey displacements are compared for each model. The model without bracing showed the highest displacements of 186mm and 282mm in horizontal directions. Displacements were reduced with the addition of bracing systems, with inverted V bracing providing the lowest displacements of 148mm and 186mm. Thus
Seismic Performance Study of RC Framed Building with Diaphragm DiscontinuityIRJET Journal
This document summarizes a study on the seismic performance of reinforced concrete framed buildings with diaphragm discontinuity. Two types of buildings were modeled - a regular building without discontinuity, and buildings with concentric and eccentric discontinuities in the slab. The buildings were analyzed using response spectrum analysis and time history analysis. Results showed that buildings with discontinuities experienced greater displacement, drift, and joint displacement compared to the regular building. However, the regular building had higher storey shear and longer modal periods. In general, the study found that irregular buildings were more susceptible to earthquake forces than the regular building without discontinuities.
IRJET-Analytical Study on Horizontal Irregularities in RCC Structures with La...IRJET Journal
This document presents an analytical study on the effects of adding horizontal X-type bracings to reinforced concrete (RC) structures with irregular shapes (square, L, T, C shapes) under seismic forces. 8 models of a G+9 storey building located in seismic zone V on soft soil were analyzed using ETABS software. The results showed that adding X-bracings reduced time period, storey displacement, and base shear compared to an irregular RC frame without bracings. Additionally, a regular square frame performed better than the irregular frames in most cases. In conclusion, adding X-bracings improved the seismic performance of irregular RC frames by increasing stiffness and reducing displacements.
Performance Based Analysis of Concealed Beam in Reinforced Concrete StructureIRJET Journal
1) The document analyzes the seismic behavior of reinforced concrete structures with and without concealed beams through modeling and analysis in ETABS.
2) Response spectrum analysis and pushover analysis are conducted on G+4 and G+6 storey models to compare parameters like base shear, natural period, displacement, and hinge formation between models with and without concealed beams.
3) The results show that structures with concealed beams have lower base shear, longer natural period, higher displacement, and form hinges at later steps compared to structures without concealed beams, indicating they perform better seismically. However, both models require retrofitting of bottom storey columns where many life safety hinges form.
Seismic Behaviour of Rc Building Resting on Plain and Sloping Ground with Bra...IRJET Journal
This document analyzes the seismic behavior of a 10-story reinforced concrete building resting on plain and sloping ground with various lateral load resisting systems. The building is modeled in ETABS with configurations including a bare frame, cross bracing, and shear walls on ground slopes of 10, 20, and 30 degrees. Results are compared for seismic parameters such as base shear, story displacement, story drift, and fundamental time period. Shear walls performed best at resisting lateral loads on both plain and sloping ground compared to cross bracing or a bare frame structure.
ANALYSIS AND DESIGN OPTIMIZATION OF SHEAR-WALL IN CASE OF HIGH-RISE BUILDING ...IRJET Journal
The document analyzes and optimizes the design of shear walls in a high-rise building using ETABS software. It discusses modeling a 10-story building in ETABS with and without shear walls, and making design adjustments to the shear wall configuration. Results for story displacement and drift are compared between the models. The optimized model with design adjustments to the shear wall configuration showed reductions in story displacement and drift compared to the initial model without shear walls.
IRJET- A Study on Performance of High-Rise Building with different Struct...IRJET Journal
This document analyzes the performance of different structural systems for a 20-story building under earthquake loading conditions. It models a building with beam-slab, flat slab, flat plate, and various combinations of shear walls and bracing, using ETABS software. It finds that the beam-slab system experiences the highest story displacements and drifts of 47% and 50% respectively compared to other systems. The time period is shortest, at 53% less, for flat plate systems with shear walls or bracing due to their greater stiffness. The flat slab system with shear walls experiences the highest base shear, being 34% more than the beam-slab system. In conclusion, flat plate systems with bracing or shear walls
Elastic and Inelastic Responses of Multi-Storey Buildings Symmetric and Asymm...IRJET Journal
This document presents a study on the elastic and inelastic responses of regular and irregular multi-storey buildings subjected to seismic loading. Various building models are analyzed including structures symmetric and asymmetric in plan with different shear wall configurations, and structures with mass irregularities over height from infill walls. The models are analyzed using response spectrum analysis in STAAD Pro. Results for time period, displacements, drifts and base shear are presented and compared for different models to evaluate the effects of plan and mass irregularities. Structures with shear walls along the periphery in both directions and with full infill walls performed best with minimum time periods, displacements and drifts.
IRJET- Effect of Core Wall on Torsional and Dynamic Behaviour of High –Rise F...IRJET Journal
This document discusses the effect of core walls on the torsional and dynamic behavior of high-rise flat slab structures. It analyzes 4 models of a 240m tall building with different structural systems using equivalent static and time history dynamic analysis. The models include a beam-slab system, flat slab system without a core wall, and flat slab systems with core walls in different locations. Results show that core walls can induce additional torsional effects and affect displacement, drift and vibration characteristics, especially with increased floor height. Therefore, additional structural elements like outriggers are necessary to limit responses in tall flat slab buildings.
IRJET- Static and Dynamic Analysis of Multistorey Buildings having Floating C...IRJET Journal
This document analyzes the behavior of multistory buildings with floating columns, which do not extend all the way from the top floor to the foundation. Three building models with 9, 12, and 15 stories are analyzed with and without shear walls using static and dynamic methods. The buildings are assumed to be located in seismic zones III, IV, and V. Response parameters of lateral displacement and story drift are compared. Results show that story drift and displacement increase with zone intensity and number of stories. Shear walls and dynamic analysis help reduce drift and displacement. Dynamic analysis provides more accurate results than static analysis. In conclusion, floating columns can increase vulnerability in earthquakes, but this can be mitigated with shear walls.
Similar to IRJET- Seismic Behaviour of Steel Structures with Bracings Having Seismic Irregularity (20)
TUNNELING IN HIMALAYAS WITH NATM METHOD: A SPECIAL REFERENCES TO SUNGAL TUNNE...IRJET Journal
1) The document discusses the Sungal Tunnel project in Jammu and Kashmir, India, which is being constructed using the New Austrian Tunneling Method (NATM).
2) NATM involves continuous monitoring during construction to adapt to changing ground conditions, and makes extensive use of shotcrete for temporary tunnel support.
3) The methodology section outlines the systematic geotechnical design process for tunnels according to Austrian guidelines, and describes the various steps of NATM tunnel construction including initial and secondary tunnel support.
STUDY THE EFFECT OF RESPONSE REDUCTION FACTOR ON RC FRAMED STRUCTUREIRJET Journal
This study examines the effect of response reduction factors (R factors) on reinforced concrete (RC) framed structures through nonlinear dynamic analysis. Three RC frame models with varying heights (4, 8, and 12 stories) were analyzed in ETABS software under different R factors ranging from 1 to 5. The results showed that displacement increased as the R factor decreased, indicating less linear behavior for lower R factors. Drift also decreased proportionally with increasing R factors from 1 to 5. Shear forces in the frames decreased with higher R factors. In general, R factors of 3 to 5 produced more satisfactory performance with less displacement and drift. The displacement variations between different building heights were consistent at different R factors. This study evaluated how R factors influence
A COMPARATIVE ANALYSIS OF RCC ELEMENT OF SLAB WITH STARK STEEL (HYSD STEEL) A...IRJET Journal
This study compares the use of Stark Steel and TMT Steel as reinforcement materials in a two-way reinforced concrete slab. Mechanical testing is conducted to determine the tensile strength, yield strength, and other properties of each material. A two-way slab design adhering to codes and standards is executed with both materials. The performance is analyzed in terms of deflection, stability under loads, and displacement. Cost analyses accounting for material, durability, maintenance, and life cycle costs are also conducted. The findings provide insights into the economic and structural implications of each material for reinforcement selection and recommendations on the most suitable material based on the analysis.
Effect of Camber and Angles of Attack on Airfoil CharacteristicsIRJET Journal
This document discusses a study analyzing the effect of camber, position of camber, and angle of attack on the aerodynamic characteristics of airfoils. Sixteen modified asymmetric NACA airfoils were analyzed using computational fluid dynamics (CFD) by varying the camber, camber position, and angle of attack. The results showed the relationship between these parameters and the lift coefficient, drag coefficient, and lift to drag ratio. This provides insight into how changes in airfoil geometry impact aerodynamic performance.
A Review on the Progress and Challenges of Aluminum-Based Metal Matrix Compos...IRJET Journal
This document reviews the progress and challenges of aluminum-based metal matrix composites (MMCs), focusing on their fabrication processes and applications. It discusses how various aluminum MMCs have been developed using reinforcements like borides, carbides, oxides, and nitrides to improve mechanical and wear properties. These composites have gained prominence for their lightweight, high-strength and corrosion resistance properties. The document also examines recent advancements in fabrication techniques for aluminum MMCs and their growing applications in industries such as aerospace and automotive. However, it notes that challenges remain around issues like improper mixing of reinforcements and reducing reinforcement agglomeration.
Dynamic Urban Transit Optimization: A Graph Neural Network Approach for Real-...IRJET Journal
This document discusses research on using graph neural networks (GNNs) for dynamic optimization of public transportation networks in real-time. GNNs represent transit networks as graphs with nodes as stops and edges as connections. The GNN model aims to optimize networks using real-time data on vehicle locations, arrival times, and passenger loads. This helps increase mobility, decrease traffic, and improve efficiency. The system continuously trains and infers to adapt to changing transit conditions, providing decision support tools. While research has focused on performance, more work is needed on security, socio-economic impacts, contextual generalization of models, continuous learning approaches, and effective real-time visualization.
Structural Analysis and Design of Multi-Storey Symmetric and Asymmetric Shape...IRJET Journal
This document summarizes a research project that aims to compare the structural performance of conventional slab and grid slab systems in multi-story buildings using ETABS software. The study will analyze both symmetric and asymmetric building models under various loading conditions. Parameters like deflections, moments, shears, and stresses will be examined to evaluate the structural effectiveness of each slab type. The results will provide insights into the comparative behavior of conventional and grid slabs to help engineers and architects select appropriate slab systems based on building layouts and design requirements.
A Review of “Seismic Response of RC Structures Having Plan and Vertical Irreg...IRJET Journal
This document summarizes and reviews a research paper on the seismic response of reinforced concrete (RC) structures with plan and vertical irregularities, with and without infill walls. It discusses how infill walls can improve or reduce the seismic performance of RC buildings, depending on factors like wall layout, height distribution, connection to the frame, and relative stiffness of walls and frames. The reviewed research paper analyzes the behavior of infill walls, effects of vertical irregularities, and seismic performance of high-rise structures under linear static and dynamic analysis. It studies response characteristics like story drift, deflection and shear. The document also provides literature on similar research investigating the effects of infill walls, soft stories, plan irregularities, and different
This document provides a review of machine learning techniques used in Advanced Driver Assistance Systems (ADAS). It begins with an abstract that summarizes key applications of machine learning in ADAS, including object detection, recognition, and decision-making. The introduction discusses the integration of machine learning in ADAS and how it is transforming vehicle safety. The literature review then examines several research papers on topics like lightweight deep learning models for object detection and lane detection models using image processing. It concludes by discussing challenges and opportunities in the field, such as improving algorithm robustness and adaptability.
Long Term Trend Analysis of Precipitation and Temperature for Asosa district,...IRJET Journal
The document analyzes temperature and precipitation trends in Asosa District, Benishangul Gumuz Region, Ethiopia from 1993 to 2022 based on data from the local meteorological station. The results show:
1) The average maximum and minimum annual temperatures have generally decreased over time, with maximum temperatures decreasing by a factor of -0.0341 and minimum by -0.0152.
2) Mann-Kendall tests found the decreasing temperature trends to be statistically significant for annual maximum temperatures but not for annual minimum temperatures.
3) Annual precipitation in Asosa District showed a statistically significant increasing trend.
The conclusions recommend development planners account for rising summer precipitation and declining temperatures in
P.E.B. Framed Structure Design and Analysis Using STAAD ProIRJET Journal
This document discusses the design and analysis of pre-engineered building (PEB) framed structures using STAAD Pro software. It provides an overview of PEBs, including that they are designed off-site with building trusses and beams produced in a factory. STAAD Pro is identified as a key tool for modeling, analyzing, and designing PEBs to ensure their performance and safety under various load scenarios. The document outlines modeling structural parts in STAAD Pro, evaluating structural reactions, assigning loads, and following international design codes and standards. In summary, STAAD Pro is used to design and analyze PEB framed structures to ensure safety and code compliance.
A Review on Innovative Fiber Integration for Enhanced Reinforcement of Concre...IRJET Journal
This document provides a review of research on innovative fiber integration methods for reinforcing concrete structures. It discusses studies that have explored using carbon fiber reinforced polymer (CFRP) composites with recycled plastic aggregates to develop more sustainable strengthening techniques. It also examines using ultra-high performance fiber reinforced concrete to improve shear strength in beams. Additional topics covered include the dynamic responses of FRP-strengthened beams under static and impact loads, and the performance of preloaded CFRP-strengthened fiber reinforced concrete beams. The review highlights the potential of fiber composites to enable more sustainable and resilient construction practices.
Survey Paper on Cloud-Based Secured Healthcare SystemIRJET Journal
This document summarizes a survey on securing patient healthcare data in cloud-based systems. It discusses using technologies like facial recognition, smart cards, and cloud computing combined with strong encryption to securely store patient data. The survey found that healthcare professionals believe digitizing patient records and storing them in a centralized cloud system would improve access during emergencies and enable more efficient care compared to paper-based systems. However, ensuring privacy and security of patient data is paramount as healthcare incorporates these digital technologies.
Review on studies and research on widening of existing concrete bridgesIRJET Journal
This document summarizes several studies that have been conducted on widening existing concrete bridges. It describes a study from China that examined load distribution factors for a bridge widened with composite steel-concrete girders. It also outlines challenges and solutions for widening a bridge in the UAE, including replacing bearings and stitching the new and existing structures. Additionally, it discusses two bridge widening projects in New Zealand that involved adding precast beams and stitching to connect structures. Finally, safety measures and challenges for strengthening a historic bridge in Switzerland under live traffic are presented.
React based fullstack edtech web applicationIRJET Journal
The document describes the architecture of an educational technology web application built using the MERN stack. It discusses the frontend developed with ReactJS, backend with NodeJS and ExpressJS, and MongoDB database. The frontend provides dynamic user interfaces, while the backend offers APIs for authentication, course management, and other functions. MongoDB enables flexible data storage. The architecture aims to provide a scalable, responsive platform for online learning.
A Comprehensive Review of Integrating IoT and Blockchain Technologies in the ...IRJET Journal
This paper proposes integrating Internet of Things (IoT) and blockchain technologies to help implement objectives of India's National Education Policy (NEP) in the education sector. The paper discusses how blockchain could be used for secure student data management, credential verification, and decentralized learning platforms. IoT devices could create smart classrooms, automate attendance tracking, and enable real-time monitoring. Blockchain would ensure integrity of exam processes and resource allocation, while smart contracts automate agreements. The paper argues this integration has potential to revolutionize education by making it more secure, transparent and efficient, in alignment with NEP goals. However, challenges like infrastructure needs, data privacy, and collaborative efforts are also discussed.
A REVIEW ON THE PERFORMANCE OF COCONUT FIBRE REINFORCED CONCRETE.IRJET Journal
This document provides a review of research on the performance of coconut fibre reinforced concrete. It summarizes several studies that tested different volume fractions and lengths of coconut fibres in concrete mixtures with varying compressive strengths. The studies found that coconut fibre improved properties like tensile strength, toughness, crack resistance, and spalling resistance compared to plain concrete. Volume fractions of 2-5% and fibre lengths of 20-50mm produced the best results. The document concludes that using a 4-5% volume fraction of coconut fibres 30-40mm in length with M30-M60 grade concrete would provide benefits based on previous research.
Optimizing Business Management Process Workflows: The Dynamic Influence of Mi...IRJET Journal
The document discusses optimizing business management processes through automation using Microsoft Power Automate and artificial intelligence. It provides an overview of Power Automate's key components and features for automating workflows across various apps and services. The document then presents several scenarios applying automation solutions to common business processes like data entry, monitoring, HR, finance, customer support, and more. It estimates the potential time and cost savings from implementing automation for each scenario. Finally, the conclusion emphasizes the transformative impact of AI and automation tools on business processes and the need for ongoing optimization.
Multistoried and Multi Bay Steel Building Frame by using Seismic DesignIRJET Journal
The document describes the seismic design of a G+5 steel building frame located in Roorkee, India according to Indian codes IS 1893-2002 and IS 800. The frame was analyzed using the equivalent static load method and response spectrum method, and its response in terms of displacements and shear forces were compared. Based on the analysis, the frame was designed as a seismic-resistant steel structure according to IS 800:2007. The software STAAD Pro was used for the analysis and design.
Cost Optimization of Construction Using Plastic Waste as a Sustainable Constr...IRJET Journal
This research paper explores using plastic waste as a sustainable and cost-effective construction material. The study focuses on manufacturing pavers and bricks using recycled plastic and partially replacing concrete with plastic alternatives. Initial results found that pavers and bricks made from recycled plastic demonstrate comparable strength and durability to traditional materials while providing environmental and cost benefits. Additionally, preliminary research indicates incorporating plastic waste as a partial concrete replacement significantly reduces construction costs without compromising structural integrity. The outcomes suggest adopting plastic waste in construction can address plastic pollution while optimizing costs, promoting more sustainable building practices.
Conservation of Taksar through Economic RegenerationPriyankaKarn3
This was our 9th Sem Design Studio Project, introduced as Conservation of Taksar Bazar, Bhojpur, an ancient city famous for Taksar- Making Coins. Taksar Bazaar has a civilization of Newars shifted from Patan, with huge socio-economic and cultural significance having a settlement of about 300 years. But in the present scenario, Taksar Bazar has lost its charm and importance, due to various reasons like, migration, unemployment, shift of economic activities to Bhojpur and many more. The scenario was so pityful that when we went to make inventories, take survey and study the site, the people and the context, we barely found any youth of our age! Many houses were vacant, the earthquake devasted and ruined heritages.
Conservation of those heritages, ancient marvels,a nd history was in dire need, so we proposed the Conservation of Taksar through economic regeneration because the lack of economy was the main reason for the people to leave the settlement and the reason for the overall declination.
Encontro anual da comunidade Splunk, onde discutimos todas as novidades apresentadas na conferência anual da Spunk, a .conf24 realizada em junho deste ano em Las Vegas.
Neste vídeo, trago os pontos chave do encontro, como:
- AI Assistant para uso junto com a SPL
- SPL2 para uso em Data Pipelines
- Ingest Processor
- Enterprise Security 8.0 (Maior atualização deste seu release)
- Federated Analytics
- Integração com Cisco XDR e Cisto Talos
- E muito mais.
Deixo ainda, alguns links com relatórios e conteúdo interessantes que podem ajudar no esclarecimento dos produtos e funções.
https://www.splunk.com/en_us/campaigns/the-hidden-costs-of-downtime.html
https://www.splunk.com/en_us/pdfs/gated/ebooks/building-a-leading-observability-practice.pdf
https://www.splunk.com/en_us/pdfs/gated/ebooks/building-a-modern-security-program.pdf
Nosso grupo oficial da Splunk:
https://usergroups.splunk.com/sao-paulo-splunk-user-group/
OCS Training Institute is pleased to co-operate with
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& Engineering for Offshore Drilling Rigs, to deliver
Drilling Rig Inspec-tion Workshops (RIW) which
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required to ensure equipment integrity. Candidates
learn to implement the relevant standards &
understand industry requirements so that they can
verify the condition of a rig’s equipment & improve
safety, thus reducing the number of accidents and
protecting the asset.
Natural Is The Best: Model-Agnostic Code Simplification for Pre-trained Large...YanKing2
Pre-trained Large Language Models (LLM) have achieved remarkable successes in several domains. However, code-oriented LLMs are often heavy in computational complexity, and quadratically with the length of the input code sequence. Toward simplifying the input program of an LLM, the state-of-the-art approach has the strategies to filter the input code tokens based on the attention scores given by the LLM. The decision to simplify the input program should not rely on the attention patterns of an LLM, as these patterns are influenced by both the model architecture and the pre-training dataset. Since the model and dataset are part of the solution domain, not the problem domain where the input program belongs, the outcome may differ when the model is trained on a different dataset. We propose SlimCode, a model-agnostic code simplification solution for LLMs that depends on the nature of input code tokens. As an empirical study on the LLMs including CodeBERT, CodeT5, and GPT-4 for two main tasks: code search and summarization. We reported that 1) the reduction ratio of code has a linear-like relation with the saving ratio on training time, 2) the impact of categorized tokens on code simplification can vary significantly, 3) the impact of categorized tokens on code simplification is task-specific but model-agnostic, and 4) the above findings hold for the paradigm–prompt engineering and interactive in-context learning and this study can save reduce the cost of invoking GPT-4 by 24%per API query. Importantly, SlimCode simplifies the input code with its greedy strategy and can obtain at most 133 times faster than the state-of-the-art technique with a significant improvement. This paper calls for a new direction on code-based, model-agnostic code simplification solutions to further empower LLMs.
A brief introduction to quadcopter (drone) working. It provides an overview of flight stability, dynamics, general control system block diagram, and the electronic hardware.
A vernier caliper is a precision instrument used to measure dimensions with high accuracy. It can measure internal and external dimensions, as well as depths.
Here is a detailed description of its parts and how to use it.