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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil dan Perencanaan Journal of Engineering and Technological Sciences Teras Jurnal Journal of the Civil Engineering Forum Civil Engineering Dimension Jurnal Aplikasi Teknik Sipil Media Ilmiah Teknik Sipil Journal of the Civil Engineering Forum Jurnal Teknik Sipil
Mahmud Kori Effendi
Universitas Janabadra
Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Transportation

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Respon Gedung Portal Baja Akibat Pembesaran Gempa Oleh Lapisan Tanah: Steel Frame Response Subject To Seismic Amplification By Soil Deposit Kori Effendi, Mahmud; Susilawati, Herlina; Diana, Nur Ayu; Artha, F. Dona
Media Ilmiah Teknik Sipil Vol. 13 No. 3 (2025): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v13i3.8167

Abstract

Yogyakarta city is one of the earthquake prone areas in Indonesia that has historical buildings, high-rise buildings, road structures and bridges. The soil profile affects the amplification from bedrock to the ground surface. The bedrock acceleration is taken from the matched design response spectrum SNI by means SeismoMatch. The output of the NERA software shows that the ground acceleration is increasing from 0,249 g to 0,385 g or about 1,5 times compared to bedrock. The SAP2000v14 is used as dynamic analysis software. The modal analysis result that the 7 modes are enough for the analysis, so that it meets the mass participation ratio requirements in article 7.9.1 SNI-1726-2012 which is ≥ 90%. The results of dynamic earthquake analysis by both Time History and Response Spectrum analysis have relatively the same results in displacement, axial force and bending moment. In the Modal Time History 1 (MHIST 1) the large time interval affects the bending moment. After the small-time interval is used, both Modal Time History 2 (MHIST 2) and Direct Integration Time History (DHIST 2) give the same results.
ANALISIS ELEMEN HINGGA NONLINIER BALOK GESER BETON MEMADAT MANDIRI dan BETON MUTU TINGGI Effendi, Mahmud Kori; Rahmayanti, Novi
Teras Jurnal : Jurnal Teknik Sipil Vol. 11 No. 2 (2021): Volume 11 Nomor 2, September 2021
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v11i2.518

Abstract

Abstrak Indonesia merupakan negara yang rentan terhadap bencana gempa bumi. Banyak rumah atau gedung di Indonesia dibangun dengan menggunakan material beton bertulang. Kerusakan geser pada elemen beton bertulang tersebut sangat berbahaya, hal ini dikarenakan kerusakan ini terjadi secara tiba-tiba dan biasanya terjadi secara eksplosif. Analisis nonlinier elemen hingga tiga dimensi balok beton memadat mandiri dan beton mutu tinggi dengan pemadatan mekanis dilakukan dengan software MSC Marc/Mentat. Baja dimodelkan dengan tertanam di beton. Kriteria kegagalan Linier Mohr-Coulomb digunakan untuk beton dan Von Mises untuk baja tulangan. Hasil kurva hubungan beban-lendutan untuk kedua balok beton memadat mandiri dan beton mutu tinggi pemadatan mekanis hampir sama dengan hasil kurva eksperimen di daerah elastic, namun setelah melewati fase elastik, kurva analisis berbeda sedikit dengan kurva eksperimen. Hasil analisis teoritis kekuatan beton hampir sama dengan hasil analisis elemen hingga balok beton tanpa tulangan. Hasil analisis kontak juga memperlihatkan terjadi kontak dan perlepasan pada bidang kontak baja tumpuan beban dan tumpuan balok dengan beton. Kata kunci: beton memadat mandiri, mutu tinggi, elemen hingga, MSC Marc/Mentat  Abstract Indonesia is a country that is prone to earthquakes. Many houses or buildings in Indonesia are built using reinforced concrete material. Shear damage to reinforced concrete elements is very dangerous, because this damage occurs suddenly and usually occurs explosively. The nonlinear three-dimensional finite element analysis of self-compacting concrete beam and high strength concrete beam by mechanical compaction were carried out using the MSC Marc/Mentat software. Steel is modeled by being embedded in concrete. The Mohr-Coulomb Linear failure criterion is used for concrete and Von Mises for reinforcing steel. The results of the load- deflection curves for both self-compacting and mechanical compaction high-strength concrete beams are almost the same as those of the experimental curves in the elastic area, after elasticity, the analysis curve differs slightly from the experimental curve. The results of the theoretical analysis of the strength of the concrete are almost the same as the results of the analysis of the finite element concrete beams without reinforcement. The results of the contact analysis also showed that there was contact and detachment in the contact area of the load bearing steel and the beam support with the concrete. Keywords: self-compacting concrete, high strength, finite element, MSC Marc/Mentat
Co-Authors Abdul Hamid, Nor Hayati Ali Awaludin Ali Awaludin Anuar, Shamilah Arie Taveriyanto, Arie Artha, F. Dona Awang, Haryati Diana, Nur Ayu Hardawati, Astriana Haryati Awang Hassan, Rohana Henry Apriyatno Ilman Fathurahman Masjuki, Siti Aliyyah Nor Hayati Abdul Hamid Novi Rahmayanti Novi Rahmayanti Rahmayanti Rahmayanti, Novi Rahmayanti, Novi Rahmayanti Shamilah Anuar Sulhan, Muhammad Afif Susilawati, Herlina Yasir, Ahmad Yasir, Ahmad Yulianto, Hariadi