Subsidized housing is a government program intended to provide homes for low-income communities (MBR). However, many units are perceived as less attractive due to high prices and structural deficiencies that often fail to meet building standards, posing risks in earthquake-prone areas. Innovation is therefore needed to deliver affordable housing that ensures adequate seismic safety. One proposed solution is the Rumah Aman Gempa Universitas Andalas (RAG UNAND), or the Andalas University Earthquake-Resistant House, which applies ferrocement layer reinforcement as an alternative to the conventional reinforced concrete structural framing system. This study evaluates the seismic performance of a type-36 RAG UNAND model using ETABS V.22 numerical simulations. The structure was subjected to time history analyses of three major earthquake records: South America 2010 (Mw 8.81) and Japan 2011 (Mw 9.12) recorded at stations 41209 and Chiba. The main construction materials were hollow concrete blocks (fc’ = 2.5 MPa), cement mortar (fc’ = 9.9 MPa), and wire mesh (fy = 275 MPa). Seismic loads were derived from the Indonesian earthquake hazard map and adjusted through response spectra. Results show that the maximum tensile stress on the walls for all earthquake scenarios remained below the allowable tensile strength of the hollow brick wall (0.26 MPa), with peak values of 0.25 MPa (CSCH Station, South America) and 0.20 MPa (Japan, 41209 and Chiba). These findings demonstrate that ferrocement reinforcement effectively enhances wall integrity and reduces stress concentrations, making the RAG UNAND design a safe and feasible option for earthquake-resistant subsidized housing in Indonesia.

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Analytical Study on Seismic Performance of the Andalas University Earthquake-Resistant House (RAG UNAND) Using Ferrocement Layer Reinforcement for Subsidized Housing in Indonesia

  • Fauzan,
  • Abdul Hakam,
  • Febrin Anas Ismail,
  • Werry Darta Taifur,
  • Muhammad Arisman,
  • Julita Andrini Repadi

摘要

Subsidized housing is a government program intended to provide homes for low-income communities (MBR). However, many units are perceived as less attractive due to high prices and structural deficiencies that often fail to meet building standards, posing risks in earthquake-prone areas. Innovation is therefore needed to deliver affordable housing that ensures adequate seismic safety. One proposed solution is the Rumah Aman Gempa Universitas Andalas (RAG UNAND), or the Andalas University Earthquake-Resistant House, which applies ferrocement layer reinforcement as an alternative to the conventional reinforced concrete structural framing system. This study evaluates the seismic performance of a type-36 RAG UNAND model using ETABS V.22 numerical simulations. The structure was subjected to time history analyses of three major earthquake records: South America 2010 (Mw 8.81) and Japan 2011 (Mw 9.12) recorded at stations 41209 and Chiba. The main construction materials were hollow concrete blocks (fc’ = 2.5 MPa), cement mortar (fc’ = 9.9 MPa), and wire mesh (fy = 275 MPa). Seismic loads were derived from the Indonesian earthquake hazard map and adjusted through response spectra. Results show that the maximum tensile stress on the walls for all earthquake scenarios remained below the allowable tensile strength of the hollow brick wall (0.26 MPa), with peak values of 0.25 MPa (CSCH Station, South America) and 0.20 MPa (Japan, 41209 and Chiba). These findings demonstrate that ferrocement reinforcement effectively enhances wall integrity and reduces stress concentrations, making the RAG UNAND design a safe and feasible option for earthquake-resistant subsidized housing in Indonesia.