In this study comparing two types of simple house forms that were built without using count analy... more In this study comparing two types of simple house forms that were built without using count analysis. The building uses beams and columns that are usually used in a simple house in Indonesia. The modeled building consists of a square cross section and L cross section, also the modeled wall consists of a full wall, a wall with door openings, walls with door and window openings. Modeling using STERA 3D software to model non-engineered building comprise beams and columns and STERA FEM software for modeling walls. Modeling was carried out to analyze building shear stiffness, earthquake acceleration, and wall deflection when receiving loads. The loading in this study uses dead loads and earthquake loads using the time history method. The results of the modeling are the largest shear stiffness of a simple house building with a square cross-section of 35 kN/cm. The maximum land acceleration resulting is 8.72 m/s2. The largest wall deflection occurs at a load of 20 kN with a deflection value of 58.83 mm on the wall with door and window openings. The high deflection value is caused by the influence of the width openings on the wall and the load go down to the wall.
Yogyakarta is an earthquake-prone area, particularly in the Bantul regency, due to its nearness t... more Yogyakarta is an earthquake-prone area, particularly in the Bantul regency, due to its nearness to volcanic routes. On May 27, 2006, during the Yogyakarta earthquake, it was recorded that 2,900 school buildings were damaged. Therefore, it is necessary to measure the current state of school readiness regarding the earthquake readiness of students, teachers, and school buildings. Muhammadiyah Kasihan and SMK Muhammadiyah Bangun Jiwo were evaluated as Muhammadiyah schools in Bangun Jiwo, Bantul Regency. This study used a questionnaire to determine the preparedness index based on a framework modified by the Indonesian Institute of Sciences (LIPI) in collaboration with UNESCO/ISDR in 2006. Then each parameter was weighted using the Analytical Hierarchy Process (AHP) method. Based on the score level evaluation, the results indicated that MTS Muhammadiyah Kasihan had a moderate readiness index with a score of 64.99%. Low school preparedness policies, emergency response plans, and financial...
Concrete is considered one of the construction materials that contribute the most significant car... more Concrete is considered one of the construction materials that contribute the most significant carbon dioxide in the world. Meanwhile, according to various studies, concrete production will continue to rise through 2050, especially in developing countries. According to several reports, cement manufacture is one of the largest sources of carbon dioxide in the concrete sector. In addition, overexploitation of aggregates due to concrete production also causes unavoidable natural damage. Bottom ash waste was used as a replacement for cement and fine aggregate as sustainable construction materials. It is envisaged that this research would allow industrial waste to be utilized to its full potential, resulting in a concrete that is more environmentally friendly and minimizes carbon dioxide emissions during the manufacturing process. This study is divided into bottom ash as a cement substitute and bottom ash as a fine aggregate substitute. The engineering properties of the concrete were chec...
SFCC is one of the self-compacting concrete innovations. With the presence of fiber, this concret... more SFCC is one of the self-compacting concrete innovations. With the presence of fiber, this concrete is not only famous for its own compaction process but also has good tensile strength and good ductility when compared to normal Self Compacting Concrete (SCC). Taking into account the environmental and economic factors of the use of cement as a major component in the manufacture of SFCC, this research is innovating by reducing the use of cement and replacing it with the use of silica fume. The silica fume variations used in this study include 5%, 10%, and 15% with the use of 1% nylon fiber. Fresh properties testing including slump flow, T50, V - Funnel, and L - Box for silica fume variations were conducted in this study. Not only that, compressive strength, tensile strength and flexural strength testing are carried out to study the mechanical properties of the SHCC against silica fume variations. The results show that the use of silica fume variations will affect the fresh properties a...
Many type irregularities exist in reinforced concrete frame buildings to accommodate the demand f... more Many type irregularities exist in reinforced concrete frame buildings to accommodate the demand from architectural and aesthetic aspects. One of it is vertical irregularity setback. Its appearance affected the building seismic performance and the damage distribution. Previous researchers proposed equations to correlate between irregularity indices and damage index ratio of setback buildings. However, the aspect ratio between span and height were not included in the formula. This research presents the influence of span-to-height ratio to damage index ratio of the reinforced concrete buildings with setbacks. A set of 2D RC frames having setbacks are evaluated with nonlinear dynamic analyses under three seismic input motions. Several span-to-height aspect ratios were applied by changing the inter-story heights. The Park-Ang damage index was adopted to evaluate the damage index ratio between tower part and base part to represent the damage distribution and the inter-story drifts were ob...
Prosiding Seminar Nasional Program Pengabdian Masyarakat
Mitra pada program pengabdian ini adalah masyarakat Dukuh Butuh Kidul, Sedayu, Bantul, Yogyakarta... more Mitra pada program pengabdian ini adalah masyarakat Dukuh Butuh Kidul, Sedayu, Bantul, Yogyakarta. Masalah yang dialami mitra yaitu tidak tersedianya fasilitas wudu pada musala, sehingga warga harus berwudu di rumah warga yang berada di sekitar Musala. Sebagai pusat ibadah khususnya salat, maka Musala terkait dengan permasalahan syarat sahnya salat antara lain berwudu dan suci dari najis sehingga diperlukan jaminan sahnya wudu para jamaah serta kesucian musala. Maka dari itu, dalam program Pengabdian Kepada Masyarakat yang dibiayai oleh LP3M UMY Tahun 2019/2020 kami bersama dengan Mahasiswa Himpunan Sipil (HMS) UMY melaksanakan pengabdian masyarakat berupa pembangunan fasilitas wudu dan toilet pada Musala Dukuh Butuh Kidul. Metode yang digunakan dalam pembangunan tempat wudu dan musala ini mengacu pada panduan pembangunan perumahan dan permukiman perdesaan yang dikeluarkan oleh Kementrian Pekerjaan Umum dan Perumahan Rakyat. Karena adanya keterbatasan dana hibah pengabdian maka prog...
Self-compacting concrete (SCC) is one of the innovations in concrete technology to help construct... more Self-compacting concrete (SCC) is one of the innovations in concrete technology to help constructors in the casting process in hard-to-reach locations and to reduce the possibility of pores. SCC can also be green concrete by mixing it with some waste material without reducing its strength. In this study, SCC uses two types of materials, namely rice husk ash and wire fiber to produce green concrete and increase strength. Several experimental activities were carried out to examine the fresh and mechanical properties of the compacting fiber concrete itself. Fresh properties testing performed consisted of L-Box Test, V-Funnel Test and J-Ring Test. Whereas the investigation on mechanical properties was carried out by testing the compressive strength at 7, 14 and 28 days. The total sample used in this study amounted to 180 samples with a diameter of 15 cm and a height of 30 cm. Variations in this study consisted of a proportion of a mixture of rice husk ash and wire fibers in concrete. Th...
IOP Conference Series: Materials Science and Engineering, 2021
Increasing of building constructions demand affects the innovation for developing structural elem... more Increasing of building constructions demand affects the innovation for developing structural elements, especially in the beam element known as deep beams. The deep beam is a popular beam with an adequate ratio of a/d < 1.0. Therefore, Compared to the standard beam, The strength of the deep beam shows better. It also can be applied to various construction. Based on observations in the field, the length of the cross-section of the deep beam varies significantly, starting from the prismatic and non-prismatic shapes. Therefore, this research has conducted to determine the effect of non prismatic longitudinal section variations on the RC deep beam behavior using finite element method. The simulation model analyzed consists of one prismatic longitudinal section and two types of the non-prismatic longitudinal section. The result shows that the non-prismatic longitudinal of the deep beam gives effects on slightly decreasing flexural load, ductility and failure mode. The failure modes sho...
In this study comparing two types of simple house forms that were built without using count analy... more In this study comparing two types of simple house forms that were built without using count analysis. The building uses beams and columns that are usually used in a simple house in Indonesia. The modeled building consists of a square cross section and L cross section, also the modeled wall consists of a full wall, a wall with door openings, walls with door and window openings. Modeling using STERA 3D software to model non-engineered building comprise beams and columns and STERA FEM software for modeling walls. Modeling was carried out to analyze building shear stiffness, earthquake acceleration, and wall deflection when receiving loads. The loading in this study uses dead loads and earthquake loads using the time history method. The results of the modeling are the largest shear stiffness of a simple house building with a square cross-section of 35 kN/cm. The maximum land acceleration resulting is 8.72 m/s2. The largest wall deflection occurs at a load of 20 kN with a deflection valu...
Self Compacting Concrete (SCC) is concrete with high fluidity so that it can flow and fill the sp... more Self Compacting Concrete (SCC) is concrete with high fluidity so that it can flow and fill the spaces in the mold without the compaction process. This study discusses the effect of the adding of kaolin and polypropylene fibers in order to increase the flowability, compressive strength, flexural strength, and tensile strength in self-compacting concrete. The additional material of kaolin was 5%, 10%, and 15% of the cement weight. The polypropylene fibers were 1%, 1.5%, and 2%. The flowability test, which was used, was Table flow, V-Funnel, and L-Box. Compressive strength testing was conducted when the concrete was 7, 14, and 28 days old. The flexural test was performed with a measurement of 150 x 150 x 600 mm as many as 18 specimens tested at the age of 28 days. The results showed that the addition of kaolin and polypropylene fibers met the flowability specifications of self-compacting concrete. The addition of polypropylene can increase the flexural strength and tensile strength of ...
In this study comparing two types of simple house forms that were built without using count analy... more In this study comparing two types of simple house forms that were built without using count analysis. The building uses beams and columns that are usually used in a simple house in Indonesia. The modeled building consists of a square cross section and L cross section, also the modeled wall consists of a full wall, a wall with door openings, walls with door and window openings. Modeling using STERA 3D software to model non-engineered building comprise beams and columns and STERA FEM software for modeling walls. Modeling was carried out to analyze building shear stiffness, earthquake acceleration, and wall deflection when receiving loads. The loading in this study uses dead loads and earthquake loads using the time history method. The results of the modeling are the largest shear stiffness of a simple house building with a square cross-section of 35 kN/cm. The maximum land acceleration resulting is 8.72 m/s2. The largest wall deflection occurs at a load of 20 kN with a deflection value of 58.83 mm on the wall with door and window openings. The high deflection value is caused by the influence of the width openings on the wall and the load go down to the wall.
Yogyakarta is an earthquake-prone area, particularly in the Bantul regency, due to its nearness t... more Yogyakarta is an earthquake-prone area, particularly in the Bantul regency, due to its nearness to volcanic routes. On May 27, 2006, during the Yogyakarta earthquake, it was recorded that 2,900 school buildings were damaged. Therefore, it is necessary to measure the current state of school readiness regarding the earthquake readiness of students, teachers, and school buildings. Muhammadiyah Kasihan and SMK Muhammadiyah Bangun Jiwo were evaluated as Muhammadiyah schools in Bangun Jiwo, Bantul Regency. This study used a questionnaire to determine the preparedness index based on a framework modified by the Indonesian Institute of Sciences (LIPI) in collaboration with UNESCO/ISDR in 2006. Then each parameter was weighted using the Analytical Hierarchy Process (AHP) method. Based on the score level evaluation, the results indicated that MTS Muhammadiyah Kasihan had a moderate readiness index with a score of 64.99%. Low school preparedness policies, emergency response plans, and financial...
Concrete is considered one of the construction materials that contribute the most significant car... more Concrete is considered one of the construction materials that contribute the most significant carbon dioxide in the world. Meanwhile, according to various studies, concrete production will continue to rise through 2050, especially in developing countries. According to several reports, cement manufacture is one of the largest sources of carbon dioxide in the concrete sector. In addition, overexploitation of aggregates due to concrete production also causes unavoidable natural damage. Bottom ash waste was used as a replacement for cement and fine aggregate as sustainable construction materials. It is envisaged that this research would allow industrial waste to be utilized to its full potential, resulting in a concrete that is more environmentally friendly and minimizes carbon dioxide emissions during the manufacturing process. This study is divided into bottom ash as a cement substitute and bottom ash as a fine aggregate substitute. The engineering properties of the concrete were chec...
SFCC is one of the self-compacting concrete innovations. With the presence of fiber, this concret... more SFCC is one of the self-compacting concrete innovations. With the presence of fiber, this concrete is not only famous for its own compaction process but also has good tensile strength and good ductility when compared to normal Self Compacting Concrete (SCC). Taking into account the environmental and economic factors of the use of cement as a major component in the manufacture of SFCC, this research is innovating by reducing the use of cement and replacing it with the use of silica fume. The silica fume variations used in this study include 5%, 10%, and 15% with the use of 1% nylon fiber. Fresh properties testing including slump flow, T50, V - Funnel, and L - Box for silica fume variations were conducted in this study. Not only that, compressive strength, tensile strength and flexural strength testing are carried out to study the mechanical properties of the SHCC against silica fume variations. The results show that the use of silica fume variations will affect the fresh properties a...
Many type irregularities exist in reinforced concrete frame buildings to accommodate the demand f... more Many type irregularities exist in reinforced concrete frame buildings to accommodate the demand from architectural and aesthetic aspects. One of it is vertical irregularity setback. Its appearance affected the building seismic performance and the damage distribution. Previous researchers proposed equations to correlate between irregularity indices and damage index ratio of setback buildings. However, the aspect ratio between span and height were not included in the formula. This research presents the influence of span-to-height ratio to damage index ratio of the reinforced concrete buildings with setbacks. A set of 2D RC frames having setbacks are evaluated with nonlinear dynamic analyses under three seismic input motions. Several span-to-height aspect ratios were applied by changing the inter-story heights. The Park-Ang damage index was adopted to evaluate the damage index ratio between tower part and base part to represent the damage distribution and the inter-story drifts were ob...
Prosiding Seminar Nasional Program Pengabdian Masyarakat
Mitra pada program pengabdian ini adalah masyarakat Dukuh Butuh Kidul, Sedayu, Bantul, Yogyakarta... more Mitra pada program pengabdian ini adalah masyarakat Dukuh Butuh Kidul, Sedayu, Bantul, Yogyakarta. Masalah yang dialami mitra yaitu tidak tersedianya fasilitas wudu pada musala, sehingga warga harus berwudu di rumah warga yang berada di sekitar Musala. Sebagai pusat ibadah khususnya salat, maka Musala terkait dengan permasalahan syarat sahnya salat antara lain berwudu dan suci dari najis sehingga diperlukan jaminan sahnya wudu para jamaah serta kesucian musala. Maka dari itu, dalam program Pengabdian Kepada Masyarakat yang dibiayai oleh LP3M UMY Tahun 2019/2020 kami bersama dengan Mahasiswa Himpunan Sipil (HMS) UMY melaksanakan pengabdian masyarakat berupa pembangunan fasilitas wudu dan toilet pada Musala Dukuh Butuh Kidul. Metode yang digunakan dalam pembangunan tempat wudu dan musala ini mengacu pada panduan pembangunan perumahan dan permukiman perdesaan yang dikeluarkan oleh Kementrian Pekerjaan Umum dan Perumahan Rakyat. Karena adanya keterbatasan dana hibah pengabdian maka prog...
Self-compacting concrete (SCC) is one of the innovations in concrete technology to help construct... more Self-compacting concrete (SCC) is one of the innovations in concrete technology to help constructors in the casting process in hard-to-reach locations and to reduce the possibility of pores. SCC can also be green concrete by mixing it with some waste material without reducing its strength. In this study, SCC uses two types of materials, namely rice husk ash and wire fiber to produce green concrete and increase strength. Several experimental activities were carried out to examine the fresh and mechanical properties of the compacting fiber concrete itself. Fresh properties testing performed consisted of L-Box Test, V-Funnel Test and J-Ring Test. Whereas the investigation on mechanical properties was carried out by testing the compressive strength at 7, 14 and 28 days. The total sample used in this study amounted to 180 samples with a diameter of 15 cm and a height of 30 cm. Variations in this study consisted of a proportion of a mixture of rice husk ash and wire fibers in concrete. Th...
IOP Conference Series: Materials Science and Engineering, 2021
Increasing of building constructions demand affects the innovation for developing structural elem... more Increasing of building constructions demand affects the innovation for developing structural elements, especially in the beam element known as deep beams. The deep beam is a popular beam with an adequate ratio of a/d < 1.0. Therefore, Compared to the standard beam, The strength of the deep beam shows better. It also can be applied to various construction. Based on observations in the field, the length of the cross-section of the deep beam varies significantly, starting from the prismatic and non-prismatic shapes. Therefore, this research has conducted to determine the effect of non prismatic longitudinal section variations on the RC deep beam behavior using finite element method. The simulation model analyzed consists of one prismatic longitudinal section and two types of the non-prismatic longitudinal section. The result shows that the non-prismatic longitudinal of the deep beam gives effects on slightly decreasing flexural load, ductility and failure mode. The failure modes sho...
In this study comparing two types of simple house forms that were built without using count analy... more In this study comparing two types of simple house forms that were built without using count analysis. The building uses beams and columns that are usually used in a simple house in Indonesia. The modeled building consists of a square cross section and L cross section, also the modeled wall consists of a full wall, a wall with door openings, walls with door and window openings. Modeling using STERA 3D software to model non-engineered building comprise beams and columns and STERA FEM software for modeling walls. Modeling was carried out to analyze building shear stiffness, earthquake acceleration, and wall deflection when receiving loads. The loading in this study uses dead loads and earthquake loads using the time history method. The results of the modeling are the largest shear stiffness of a simple house building with a square cross-section of 35 kN/cm. The maximum land acceleration resulting is 8.72 m/s2. The largest wall deflection occurs at a load of 20 kN with a deflection valu...
Self Compacting Concrete (SCC) is concrete with high fluidity so that it can flow and fill the sp... more Self Compacting Concrete (SCC) is concrete with high fluidity so that it can flow and fill the spaces in the mold without the compaction process. This study discusses the effect of the adding of kaolin and polypropylene fibers in order to increase the flowability, compressive strength, flexural strength, and tensile strength in self-compacting concrete. The additional material of kaolin was 5%, 10%, and 15% of the cement weight. The polypropylene fibers were 1%, 1.5%, and 2%. The flowability test, which was used, was Table flow, V-Funnel, and L-Box. Compressive strength testing was conducted when the concrete was 7, 14, and 28 days old. The flexural test was performed with a measurement of 150 x 150 x 600 mm as many as 18 specimens tested at the age of 28 days. The results showed that the addition of kaolin and polypropylene fibers met the flowability specifications of self-compacting concrete. The addition of polypropylene can increase the flexural strength and tensile strength of ...
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