1,2,3,4Engineering Student, Department of Civil Engineering, SRM Valliammai Engineering College, ... more 1,2,3,4Engineering Student, Department of Civil Engineering, SRM Valliammai Engineering College, Tamil Nadu, India 5Assistant Professor, Department of Civil Engineering, SRM Valliammai Engineering College, Tamil Nadu, India ---------------------------------------------------------------------***---------------------------------------------------------------------Abstract Reinforced concrete is one of the common materials used for construction. With the advent of new techniques concrete could be modified to suit any need such as early setting, high strength and such. But the inherent property which comes with every material that exists is its self-weight. Reinforced concrete even though versatile has its drawbacks owning to its self-weight. Reducing selfweight helps the structure to have better seismic efficiency when constructed as multi-storey among other advantages. The main objective of this project is to obtain a slab element with reduced self-weight by means of confining High D...
Composite sections are found to be a novel technique in modern day scenario of construction. This... more Composite sections are found to be a novel technique in modern day scenario of construction. This stands tall than the ordinary and conventional type of constructions. Columns as a structural element play a vital role in structural frame. This research comments on the behavior of composite columns. The main objective of this study is to analyze the behavior of steel-encased concrete composite columns as experimentally under axial compression and the mode of failure under ultimate failure and yield point. The steel-concrete composite system combines the formability and rigidity of reinforced concrete with the ductility and strength of structural steel to meet the demand for earthquake-resistant constructions. Three specimens were chosen for this study: one was a composite column, the other two were ordinary RC columns and structural steel columns. The raw materials' natural properties are assessed. As a result, material testing for cement, fine aggregate, and coarse aggregate was...
1Assistant Professor, Dept. of Civil Engineering, Valliammai Engineering College, Tamilnadu 2 ME ... more 1Assistant Professor, Dept. of Civil Engineering, Valliammai Engineering College, Tamilnadu 2 ME Structural engineering, Dept. of Civil Engineering, Valliammai Engineering College, Tamilnadu ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract -This paper deals with the study of the strength parameters of textile reinforced concrete. The mix design of concrete is M30 grade of concrete with water cement ratio 0.40. An experimental program consisting of two point loading tests on textile reinforced concrete and ordinary conventional concrete beams was conducted under cyclic loading to obtain stability points. The present investigation is an attempt made to evaluate the mechanical properties of textile reinforced concrete. Standard cubes of 150× 150× 150mm has been cast and tested for obtaining 28 days compressive strength. Flexural strength is checked by testing beams of size 1200 ×100 ×150...
The influence of nano silica on various properties of concrete is obtained by varying the dosage ... more The influence of nano silica on various properties of concrete is obtained by varying the dosage of nano silica with respect to cement content. The nano silica is partially replaced with respect to cement binder at 2.5%, 3.5%, and 4.5%. Laboratory test are done to determine the specimens compressive strength at 7th day and 14th day. Exceeding a certain percentage of nano particles in concrete negatively affects the mechanical properties and hence an optimum dosage is determined. Using the optimum measure flexural strength is determined. Durability testing namely rapid chloride penetration test and water permeability test are done at 28th day. Results of this study showed that nano particles can be very effective in improving mechanical properties of concrete. This improvement can be attributed to the reaction of nano materials with calcium hydroxide Ca(OH)2 crystals, which are arrayed in the interfacial zone (ITZ) between hardened cement paste and aggregates, and produce CS-H gel an...
October-December 2015 911 JCPS Volume 8 Issue 4 Comparative study of cost and time evaluation in ... more October-December 2015 911 JCPS Volume 8 Issue 4 Comparative study of cost and time evaluation in RCC, steel & Composite high rise building A.Sattainathan Sharma, G.R.Iyappan, J.Harish Assistant Professor, Student, Department of Civil Engineering, Valliammai Engineering College, SRM Nagar, Kattankulathur 603 203. *Corresponding author: E-Mail: livic.nathan@gmail.com, Ph.no-8098293038. ABSTRACT This paper deals with the study of composite structure as compare with the concrete and steel structure. The composite structure is far more advantageous over steel and concrete structure regarding Strength, Costs, and Time Period requirements. There is no need for formwork because the steel beam is able to sustain the self weight of steel and concrete, by itself or with the assistance of a few temporary props. Also this paper deals with the design of composite building with fixed base. In the present work, steel concrete composite with RCC options are considered for comparative study of B+G+20...
Reinforced Concrete (RC) beams are essential structural elements that transfer loads from the sla... more Reinforced Concrete (RC) beams are essential structural elements that transfer loads from the slabs to the columns through flexure and shear. Openings in Reinforced Concrete (RC) beams are required for a variety of architectural and mechanical reasons. The purpose of this article is to investigate the flexural behaviour of an RC beam with circular openings running the length of it. The three-dimensional nonlinear finite element method was used to investigate a supported RC beam with circular web openings of varying diameters using ANSYS, a finite element software package. The study’s primary characteristic is the variation in diameter and location of reinforcement around the openings. Five RC beams with simple supports were constructed, and tested were conducted under two-point loads. Beams were constructed with one conventional specimen without any openings in beams and two beams with unstrengthen circular openings located in the flexure zone with varying diameters such as 80mm and...
Reinforced Concrete (RC) beams are essential structural elements that transfer loads from the sla... more Reinforced Concrete (RC) beams are essential structural elements that transfer loads from the slabs to the columns through flexure and shear. Openings in Reinforced Concrete (RC) beams are required for a variety of architectural and mechanical reasons. The purpose of this article is to investigate the flexural behaviour of an RC beam with circular openings running the length of it. The three-dimensional nonlinear finite element method was used to investigate a supported RC beam with circular web openings of varying diameters using ANSYS, a finite element software package. The study’s primary characteristic is the variation in diameter and location of reinforcement around the openings. Five RC beams with simple supports were constructed, and tested were conducted under two-point loads. Beams were constructed with one conventional specimen without any openings in beams and two beams with unstrengthen circular openings located in the flexure zone with varying diameters such as 80mm and...
This paper provides the analytical and experimental work of reinforced concrete beams strengthene... more This paper provides the analytical and experimental work of reinforced concrete beams strengthened with FRP. The main objective of this investigation is to study the flexural behaviour of reinforced concrete beams of different methods of strengthening methods using GFRP to find the flexural strength, failure modes, and ductility of the reinforced concrete beam. All beams were strengthened for flexure with external bonding to prevent flexural failure. The analytical and experimental results indicated that the externally bonded GFRP used for flexural strengthening of reinforced concrete beams increased the cracking load, increased the ultimate load-carrying capacity, and exhibited decreased ductility corresponding to the unstrengthen control specimen. The analytical work was carried out using ANSYS 17.0 Software and found the parameters of total deformation, stress strain curves, and Load deflection graph plotted.
This article discusses the behavior of a reinforced concrete deep beam that has been strengthened... more This article discusses the behavior of a reinforced concrete deep beam that has been strengthened with GFRP sheets. The GFRP shows many essential and necessary properties such as low weight to strength ratio, non-corrosive, high fatigue strength, high tensile strength, etc. In this paper, four deep beams were cast, in which one beam is a control beam, and another one is with special confinement reinforcement. The rest of the two beams are strengthened with the GFRP sheets in standard control beam and special confinement reinforcement beam under static or monotonic loading under three points, and the corresponding behavior is determined. The behavior of the RC Deep beams, such as load-carrying capacity, first crack load, load-deflection behavior, crack patterns, and stress vs. strains, are determined. The analysis of the reinforced concrete deep beams was done using the finite element software called ANSYS. Additionally, this article provides preliminary support for proposing a novel...
This paper investigates the flexural behavior of high-performance concrete beams strengthened wit... more This paper investigates the flexural behavior of high-performance concrete beams strengthened with polyolefin fibers. In the recent development in concrete technology, high-performance concrete is designed to give materials, exposure conditions, and applicable requirements of cost, better service life, and durability. The replacement of cement by adding the mineral admixture and chemical admixture to the concrete increases its strength and durability properties. To improve the strength and ductility of High-performance concrete, fibers are added to the concrete. This study focused on the effect of polyolefin fibers on the mechanical and flexural performance of high-performance concrete. Two types of polyolefin fibers at various percentages of 0.1%, 0.2%, 0.3% volume fraction of high-performance concrete. The flexural beams were cast and tested under two-point loading. The addition of fibers increases the first crack load, ultimate load capacity, and ductility. Polyolefin micro and m...
1,2,3,4Engineering Student, Department of Civil Engineering, SRM Valliammai Engineering College, ... more 1,2,3,4Engineering Student, Department of Civil Engineering, SRM Valliammai Engineering College, Tamil Nadu, India 5Assistant Professor, Department of Civil Engineering, SRM Valliammai Engineering College, Tamil Nadu, India ---------------------------------------------------------------------***---------------------------------------------------------------------Abstract Reinforced concrete is one of the common materials used for construction. With the advent of new techniques concrete could be modified to suit any need such as early setting, high strength and such. But the inherent property which comes with every material that exists is its self-weight. Reinforced concrete even though versatile has its drawbacks owning to its self-weight. Reducing selfweight helps the structure to have better seismic efficiency when constructed as multi-storey among other advantages. The main objective of this project is to obtain a slab element with reduced self-weight by means of confining High D...
Composite sections are found to be a novel technique in modern day scenario of construction. This... more Composite sections are found to be a novel technique in modern day scenario of construction. This stands tall than the ordinary and conventional type of constructions. Columns as a structural element play a vital role in structural frame. This research comments on the behavior of composite columns. The main objective of this study is to analyze the behavior of steel-encased concrete composite columns as experimentally under axial compression and the mode of failure under ultimate failure and yield point. The steel-concrete composite system combines the formability and rigidity of reinforced concrete with the ductility and strength of structural steel to meet the demand for earthquake-resistant constructions. Three specimens were chosen for this study: one was a composite column, the other two were ordinary RC columns and structural steel columns. The raw materials' natural properties are assessed. As a result, material testing for cement, fine aggregate, and coarse aggregate was...
1Assistant Professor, Dept. of Civil Engineering, Valliammai Engineering College, Tamilnadu 2 ME ... more 1Assistant Professor, Dept. of Civil Engineering, Valliammai Engineering College, Tamilnadu 2 ME Structural engineering, Dept. of Civil Engineering, Valliammai Engineering College, Tamilnadu ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract -This paper deals with the study of the strength parameters of textile reinforced concrete. The mix design of concrete is M30 grade of concrete with water cement ratio 0.40. An experimental program consisting of two point loading tests on textile reinforced concrete and ordinary conventional concrete beams was conducted under cyclic loading to obtain stability points. The present investigation is an attempt made to evaluate the mechanical properties of textile reinforced concrete. Standard cubes of 150× 150× 150mm has been cast and tested for obtaining 28 days compressive strength. Flexural strength is checked by testing beams of size 1200 ×100 ×150...
The influence of nano silica on various properties of concrete is obtained by varying the dosage ... more The influence of nano silica on various properties of concrete is obtained by varying the dosage of nano silica with respect to cement content. The nano silica is partially replaced with respect to cement binder at 2.5%, 3.5%, and 4.5%. Laboratory test are done to determine the specimens compressive strength at 7th day and 14th day. Exceeding a certain percentage of nano particles in concrete negatively affects the mechanical properties and hence an optimum dosage is determined. Using the optimum measure flexural strength is determined. Durability testing namely rapid chloride penetration test and water permeability test are done at 28th day. Results of this study showed that nano particles can be very effective in improving mechanical properties of concrete. This improvement can be attributed to the reaction of nano materials with calcium hydroxide Ca(OH)2 crystals, which are arrayed in the interfacial zone (ITZ) between hardened cement paste and aggregates, and produce CS-H gel an...
October-December 2015 911 JCPS Volume 8 Issue 4 Comparative study of cost and time evaluation in ... more October-December 2015 911 JCPS Volume 8 Issue 4 Comparative study of cost and time evaluation in RCC, steel & Composite high rise building A.Sattainathan Sharma, G.R.Iyappan, J.Harish Assistant Professor, Student, Department of Civil Engineering, Valliammai Engineering College, SRM Nagar, Kattankulathur 603 203. *Corresponding author: E-Mail: livic.nathan@gmail.com, Ph.no-8098293038. ABSTRACT This paper deals with the study of composite structure as compare with the concrete and steel structure. The composite structure is far more advantageous over steel and concrete structure regarding Strength, Costs, and Time Period requirements. There is no need for formwork because the steel beam is able to sustain the self weight of steel and concrete, by itself or with the assistance of a few temporary props. Also this paper deals with the design of composite building with fixed base. In the present work, steel concrete composite with RCC options are considered for comparative study of B+G+20...
Reinforced Concrete (RC) beams are essential structural elements that transfer loads from the sla... more Reinforced Concrete (RC) beams are essential structural elements that transfer loads from the slabs to the columns through flexure and shear. Openings in Reinforced Concrete (RC) beams are required for a variety of architectural and mechanical reasons. The purpose of this article is to investigate the flexural behaviour of an RC beam with circular openings running the length of it. The three-dimensional nonlinear finite element method was used to investigate a supported RC beam with circular web openings of varying diameters using ANSYS, a finite element software package. The study’s primary characteristic is the variation in diameter and location of reinforcement around the openings. Five RC beams with simple supports were constructed, and tested were conducted under two-point loads. Beams were constructed with one conventional specimen without any openings in beams and two beams with unstrengthen circular openings located in the flexure zone with varying diameters such as 80mm and...
Reinforced Concrete (RC) beams are essential structural elements that transfer loads from the sla... more Reinforced Concrete (RC) beams are essential structural elements that transfer loads from the slabs to the columns through flexure and shear. Openings in Reinforced Concrete (RC) beams are required for a variety of architectural and mechanical reasons. The purpose of this article is to investigate the flexural behaviour of an RC beam with circular openings running the length of it. The three-dimensional nonlinear finite element method was used to investigate a supported RC beam with circular web openings of varying diameters using ANSYS, a finite element software package. The study’s primary characteristic is the variation in diameter and location of reinforcement around the openings. Five RC beams with simple supports were constructed, and tested were conducted under two-point loads. Beams were constructed with one conventional specimen without any openings in beams and two beams with unstrengthen circular openings located in the flexure zone with varying diameters such as 80mm and...
This paper provides the analytical and experimental work of reinforced concrete beams strengthene... more This paper provides the analytical and experimental work of reinforced concrete beams strengthened with FRP. The main objective of this investigation is to study the flexural behaviour of reinforced concrete beams of different methods of strengthening methods using GFRP to find the flexural strength, failure modes, and ductility of the reinforced concrete beam. All beams were strengthened for flexure with external bonding to prevent flexural failure. The analytical and experimental results indicated that the externally bonded GFRP used for flexural strengthening of reinforced concrete beams increased the cracking load, increased the ultimate load-carrying capacity, and exhibited decreased ductility corresponding to the unstrengthen control specimen. The analytical work was carried out using ANSYS 17.0 Software and found the parameters of total deformation, stress strain curves, and Load deflection graph plotted.
This article discusses the behavior of a reinforced concrete deep beam that has been strengthened... more This article discusses the behavior of a reinforced concrete deep beam that has been strengthened with GFRP sheets. The GFRP shows many essential and necessary properties such as low weight to strength ratio, non-corrosive, high fatigue strength, high tensile strength, etc. In this paper, four deep beams were cast, in which one beam is a control beam, and another one is with special confinement reinforcement. The rest of the two beams are strengthened with the GFRP sheets in standard control beam and special confinement reinforcement beam under static or monotonic loading under three points, and the corresponding behavior is determined. The behavior of the RC Deep beams, such as load-carrying capacity, first crack load, load-deflection behavior, crack patterns, and stress vs. strains, are determined. The analysis of the reinforced concrete deep beams was done using the finite element software called ANSYS. Additionally, this article provides preliminary support for proposing a novel...
This paper investigates the flexural behavior of high-performance concrete beams strengthened wit... more This paper investigates the flexural behavior of high-performance concrete beams strengthened with polyolefin fibers. In the recent development in concrete technology, high-performance concrete is designed to give materials, exposure conditions, and applicable requirements of cost, better service life, and durability. The replacement of cement by adding the mineral admixture and chemical admixture to the concrete increases its strength and durability properties. To improve the strength and ductility of High-performance concrete, fibers are added to the concrete. This study focused on the effect of polyolefin fibers on the mechanical and flexural performance of high-performance concrete. Two types of polyolefin fibers at various percentages of 0.1%, 0.2%, 0.3% volume fraction of high-performance concrete. The flexural beams were cast and tested under two-point loading. The addition of fibers increases the first crack load, ultimate load capacity, and ductility. Polyolefin micro and m...
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