1,720,982 research outputs found
PERBAIKAN KEKUATAN DAN DAKTILITAS BALOK BETON BERTULANG MENGGUNAKAN GLASS FIBER REINFORCED POLYMER (GFRP) STRIPS
No full textWheres Indonesia is a highly active tectonic zone that is prone to earthquakes. Important issue following the earthquake was retrofit structures to improvement strength and ductility structure. With the advancement of technology today has developed new innovations such as the use of material GFRP (Glass Fiber Reinforced Polymer) for external confinement structure. From the results obtained by the experimental of load capacity increased by 20% for C-2 (retrofit beam with GFRP strengthened 1 layer) compared B-1 (original beam). Retrofit beam with GFRP is added ductility as shown by the increase in displacement ductility 4% each for B-1 and B-2
PERBAIKAN KEKUATAN DAN DAKTILITAS KOLOM BETON BERTULANG YANG MENDAPAT BEBAN GEMPA MENGGUNAKAN GLASS FIBER REINFORCED POLYMER
No full textAbstract: Repairing the Strength and Ductility of Reinforced Concrete Column That Got Earthquake using Glass Fiber Reinforced Polymer. This study aims to identify the additional strength and ductility of reinforced concrete columns after being retro- fitted using glass fiber reinforced polymer (GFRP) and got the brunt of the earthquake. This study uses two objects tested columns, which are being tested for three times. Each column size is 350 x 350 x 1100 mm with f'c = 20.34 MPa and fy = 549.94 MPa. The testing is performed by giving a constant axial load of 748 kN and cyclic lateral load using control displacement method in order to simulate the brunt of earthquake. The results show an increase in lateral capacity of column by 43.96%. Retrofitting the column with GFRP has a ductile property, which is shown by the increase of the displacement ductility by 129.14% and curvature ductility by 118.27%
Metode Perkuatan Kolom Beton Pasca Gempa Menggunakan GFRP dan CFRP
No full textPada penelitian ini dilakukan perkuatan eksternal struktur kolom beton bertulang menggunakan GFRP dan CFRP. Dari hasil penelitian diperoleh peningkatan kapasitas lateral sebesar 143,95% untuk kolom GFRP dan 152,15% untuk kolom CFRP
Metode Perkuatan Kolom Beton Pasca Gempa Menggunakan GFRP dan CFRP
No full textPada penelitian ini dilakukan perkuatan eksternal struktur kolom beton bertulang menggunakan GFRP dan CFRP. Dari hasil penelitian diperoleh peningkatan kapasitas lateral sebesar 143,95% untuk kolom GFRP dan 152,15% untuk kolom CFRP
Kekuatan dan Daktilitas Perpindahan Kolom Pendek Beton Bertulang Persegi Dibawah Pengaruh Pembebanan Siklik
No full textIndonesia menempati zona tektonik yang sangat aktifsehingga sangat rawanterhadapgempabumi. Oleh karena itu perencanaan elemen struktur bangunan gedung sangatlah perlu memperhatikan kekuatan dan juga daktilitas. Kekuatan struktur berfungsi menahan beban oleh adanya gaya gravitasi sedangkan daktilitas merupakan salah satu persyaratan struktur tahan gempa, sedangkan pembebanan siklik merupakan representasi yang tepat untuk menggambarkan beban dinamis yang terjadi. Kolom merupakan komponen struktur yang berperan penting untuk mendukung beban aksial, beban gempa, momen lentur dan gaya geser. Karena keruntuhan kolom bisa mengakibatkan struktur bangunan runtuh (collapse) secara keseluruhan. Dalam penelitian ini diuji 1 buah kolom masing-masing berpenampang persegi, dengan ukuran tinggi 350 mm, lebar 350 mm dan panjang 1100 mm. Kuat tekan beton rata-rata digunakan f’c = 20,34 Mpa, tegangan leleh tulangan baja longitudinal fy = 549,94 Mpa. Pengujian dilakukan dengan memberikan beban aksial konstan 748 kN dan beban lateral siklik metode displacemet control untuk mensimulasikan beban gempa. Hasil analisa tioritis diagram interaksi sebagai representasi kekuatan kolom secara teoritis diperoleh beban horizontal (Ph) dan momen yang secara teroritis diperoleh Ph sebesar 185,73 kN dan momen nominal kolom secara teoritis diperoleh 202,45 kN.m sedangkan pengujian ekperimental diperoleh Ph maks sebesar 288,0 kN dengan momen nominal sebesar 316,8 kN.m. Nilai Daktilitas kolom diperoleh setelah benda uji dilakukan pengujian siklik dan hasil pengujian dilakukan analisis. Daktilitas perpindahan (µΔ) kolom uji C-1 sebesar 2,71, sehingga kolom termasuk daktail parsial
Penilaian Kondisi Bangunan Gedung Sekolah Dasar Negeri (Studi Kasus di Sekolah Dasar Negeri Se-Kabupaten Madiun)
No full textFacilities and infrastructure are important elements to achieve the successful education and teaching process. The procurement of adequate and standardized buildings become an effort to comply with the minimum standards of infrastructure required by the government. This study focus on conducting an analyzis the damage level at State Primary School (SDN) buildings in Madiun regency. Building condition assessment conducted through a direct surveys and then proceed by weighting the data to obtain the level of damage categorized as good, minor, moderate and heavily damaged . Among the 431 of state primary school buildings surveyed, 36.53% of the classrooms in a minor damage while 25.42% others considered heavily damaged. For the teacher's office, 38.04% were in a minor damage, while 23.23% others considered heavily damaged. For the library buildings, 38.14% of them considered in a minor damage and 24.53% others heavily damaged. For teacher latrines condition, 49.53% of teacher latrines considered heavily damaged, while 24.03% were moderate damage. While 49.82% of student latrines were heavily damaged and 23.49% others considered in a moderate damage. From the assessment, it can be concluded that the latrines facility repairment, both for teachers and students, should become top priority for the local government in the implementation of school quality improvement programs
A Proposed Clamp System for Mechanical Connection of Reinforcing Steel Bars
No full textThe city development in Indonesia is more oriented to the overground space and this is because the urban population has increased significantly and it is incomparable with the land available in the cities. The number of high-rise buildings and skyscrapers also marks this phenomenon. However, high-rise buildings and skyscrapers have the potential to be vulnerable to the earthquake hazard in Indonesia particularly those located at the high risk seismic regions. In the design of seismic resistant buildings, there are two important aspects required to be considered, namely strength and ductility. The deformation capability and better innovative reinforcement connection become primary consideration in the design of seismic resistant structures. From the tensile tests of reinforcing steel bars with clamps, it is shown that D13 bars has the yield and ultimate tensile strengths of 270.69 and 351.45 MPa, respectively, with the maximum load of 4,757 kg and the maximum elongation of 40%. As for the D16 bars, the yield and ultimate tensile strengths of 217.80 and 327 605 MPa, respectively, with the maximum load of 6,717 kg and the elongation of 32%. In the study, two pieces of steel clamps were tested, it is found that to obtain better results there is a need to increase the number and improve the quality of material of the steel clamps
Parmo Parmo's Quick Files
No full textThe Quick Files feature was discontinued and it’s files were migrated into this Project on March 11, 2022. The file URL’s will still resolve properly, and the Quick Files logs are available in the Project’s Recent Activity
Kekuatan dan Daktilitas Perpindahan Kolom Pendek Beton Bertulang Persegi Dibawah Pengaruh Pembebanan Siklik
No full textIndonesia menempati zona tektonik yang sangat aktifsehingga sangat rawanterhadapgempabumi. Oleh karena itu perencanaan elemen struktur bangunan gedung sangatlah perlu memperhatikan kekuatan dan juga daktilitas. Kekuatan struktur berfungsi menahan beban oleh adanya gaya gravitasi sedangkan daktilitas merupakan salah satu persyaratan struktur tahan gempa, sedangkan pembebanan siklik merupakan representasi yang tepat untuk menggambarkan beban dinamis yang terjadi. Kolom merupakan komponen struktur yang berperan penting untuk mendukung beban aksial, beban gempa, momen lentur dan gaya geser. Karena keruntuhan kolom bisa mengakibatkan struktur bangunan runtuh (collapse) secara keseluruhan. Dalam penelitian ini diuji 1 buah kolom masing-masing berpenampang persegi, dengan ukuran tinggi 350 mm, lebar 350 mm dan panjang 1100 mm. Kuat tekan beton rata-rata digunakan f’c = 20,34 Mpa, tegangan leleh tulangan baja longitudinal fy = 549,94 Mpa. Pengujian dilakukan dengan memberikan beban aksial konstan 748 kN dan beban lateral siklik metode displacemet control untuk mensimulasikan beban gempa. Hasil analisa tioritis diagram interaksi sebagai representasi kekuatan kolom secara teoritis diperoleh beban horizontal (Ph) dan momen yang secara teroritis diperoleh Ph sebesar 185,73 kN dan momen nominal kolom secara teoritis diperoleh 202,45 kN.m sedangkan pengujian ekperimental diperoleh Ph maks sebesar 288,0 kN dengan momen nominal sebesar 316,8 kN.m. Nilai Daktilitas kolom diperoleh setelah benda uji dilakukan pengujian siklik dan hasil pengujian dilakukan analisis. Daktilitas perpindahan (µΔ) kolom uji C-1 sebesar 2,71, sehingga kolom termasuk daktail parsial
A Proposed Clamp System for Mechanical Connection of Reinforcing Steel Bars
No full textThe city development in Indonesia is more oriented to the overground space and this is because the urban population has increased significantly and it is incomparable with the land available in the cities. The number of high-rise buildings and skyscrapers also marks this phenomenon. However, high-rise buildings and skyscrapers have the potential to be vulnerable to the earthquake hazard in Indonesia particularly those located at the high risk seismic regions. In the design of seismic resistant buildings, there are two important aspects required to be considered, namely strength and ductility. The deformation capability and better innovative reinforcement connection become primary consideration in the design of seismic resistant structures. From the tensile tests of reinforcing steel bars with clamps, it is shown that D13 bars has the yield and ultimate tensile strengths of 270.69 and 351.45 MPa, respectively, with the maximum load of 4,757 kg and the maximum elongation of 40%. As for the D16 bars, the yield and ultimate tensile strengths of 217.80 and 327 605 MPa, respectively, with the maximum load of 6,717 kg and the elongation of 32%. In the study, two pieces of steel clamps were tested, it is found that to obtain better results there is a need to increase the number and improve the quality of material of the steel clamps
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