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All Journal Majalah Forum Teknik UGM MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil Jurnal Teknik Sipil Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Jurnal Rekayasa Konstruksi Mekanika Sipil
Ade Lisantono, Ade
Department Of Civil Engineering, University Of Atma Jaya Yogyakarta Jln. Babarsari, No. 44, Yogyakarta 55281.
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Transportation

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EXPERIMENTAL AND NUMERICAL STUDY RETROFITTING BEAM WITH EXPANSION IN THE SUPPORT AREA Purba, Luki Hariando; Lisantono, Ade
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 30 No. 1 (2025): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v30i1.6053

Abstract

Retrofitting is one way to strengthen a building to withstand earthquakes and is often called an earthquake-resistant structure. Retrofitting beams will increase strength, stiffness, and ductility so that the structure is still stable when experiencing large earthquake forces. In addition to experimental methods, numerical methods are also used by researchers in developing a study of the behavior of building structures. Numerical methods using finite element software can examine the behavior of strength, stiffness, and ductility in beams. With this background, the author conducted a study of the retrofitting behavior of beams that were widened in the support area using numerical methods and theoretical analysis. The purpose of this study has been achieved so that a conclusion can be given that retrofitting with widening in the beam support area can increase the beam capacity quite significantly. Based on numerical research, with wide expansion reinforcement in the cross-sectional dimensions, the beam strength is increased by almost 45% and the beam stiffness is increased by 13-40% while ductility does not show a significant difference. These results are also expected to show the same behavior in experimental testing so that it will strengthen this reinforcement method. Experimental and numerical testing will be conducted in this study so that it will maintain the results and it is hoped that they can be accepted and practiced in the world of building construction.
PENGARUH RANGKAIAN GEMPA UTAMA – GEMPA SUSULAN TERHADAP REDUNDANSI DAN KERUNTUHAN PROGRESIF STRUKTUR RANGKA PEMIKUL MOMEN BETON BERTULANG Zacharias, Hendry David; Utomo, Junaedi; Arfiadi, Yoyong; Lisantono, Ade
Jurnal Teknik Sipil Vol. 18 No. 1 (2024)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v18i1.9601

Abstract

Rangkaian kejadian gempa meningkatkan kerusakan kumulatif pada struktur karena meningkatnya simpangan antar lantai, terutama untuk daerah potensi gempa kuat atau bangunan penting. Redundansi bergantung pada karakteristik dinamis dan geometris strukturnya serta sifat eksitasi gempa, peningkatan redundansi tidak dapat didefinisikan sebagai kriteria untuk meningkatkan perilaku seismik struktur, namun sangat berkaitan erat dengan keruntuhan progresif. Penelitian ini melihat pengaruh rangkaian gempa MSEq –ASEq terhadap redundansi dan keruntuhan progresif dari 16 model struktur rangka pemikul momen beton bertulang dengan variasi jumlah bentangan dan jumlah lantai tapi dengan luas denah yang sama, dengan melihat nilai simpangan antar lantai dan rotasi balok serta rasio gaya aksial terhadap kapasitas aksial kolom pada beberapa skenario pelepasan kolom. Rangkaian gempa MSEq-ASEq berpengaruh sangat signifikan terhadap kebutuhan redundansi struktur terlihat dari peningkatan nilai simpangan antar lantai namun tidak untuk keruntuhan progresif dimana tidak terjadi peningkatan nilai rotasi balok dan gaya aksial kolom (rasio ≈ 1). Menambah jumlah bentangan pada denah tidak selalu mengurangi besaran simpangan antar lantai, namum efektif untuk mengurangi nilai rotasi balok dan rasio gaya aksial terhadap kapasitas aksial kolom
Co-Authors Arnoldus Meidio Adi Prasetyo, Arnoldus Meidio Adi Biemo W Soemardi, Biemo W Da Conceição, Gilberto De Carvalho Desi Maryani Haryanto Yoso Wigroho Haryanto Yoso Wigroho, Haryanto Yoso Junaedi Utomo, Junaedi Meita Ratna Sari Meita Ratna Sari, Meita Ratna Mohamad Sahari Besari, Mohamad Sahari Octobenita, Crezensia Alfiora Deadema Dias Purba, Luki Hariando Ridwan Suhud, Ridwan Sigit Hernowo TANDEAN, Evander Yoyong Arfiadi Zacharias, Hendry David