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All Journal BAREKENG: Jurnal Ilmu Matematika dan Terapan Rang Teknik Journal International Journal of Engineering, Technology and Natural Sciences (IJETS) Indonesian Journal of Computing, Engineering, and Design Civil Engineering Collaboration Jurnal Rivet: Riset dan Invensi Teknologi
Deded Eka Sahputra
Universitas Putra Indonesia YPTK Padang
Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Transportation

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Performance Analysis of Regular and Irregular Horizontal Multi-Story Buildings Structure Fernando, Figo; Sahputra, Deded Eka; Fatchurrohman, Nanang
Indonesian Journal of Computing, Engineering, and Design (IJoCED) Vol. 7 No. 2 (2025): IJoCED
Publisher : Faculty of Engineering and Technology, Sampoerna University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35806/ijoced.v7i2.554

Abstract

This study investigates the effect of building shape on seismic performance in earthquake-prone areas such as Padang City. Using the Indonesian seismic standard SNI 1726:2019, three multi-story reinforced concrete buildings were modeled: a square (regular), a rectangular (regular), and an irregular plan. The analysis focused on internal forces, base shear, displacement, and drift ratio to evaluate differences in structural response. Results show that buildings with horizontal irregularities experience higher internal forces and displacements. The bending moments in irregular buildings are 4.84% higher than in rectangular buildings and 10.07% higher than in square buildings. Base shear is 1.53% and 3.04% higher, respectively. The maximum displacement differences reach 0.93 m (X direction) and 0.54 mm (Y direction). The average drift ratio in the X direction is about 0.56% for all models, while square-shaped buildings show smaller Y-direction drift. These findings highlight that plan irregularities significantly influence seismic performance, providing insights for safer structural design in seismic regions.
ASESMEN RISIKO BENCANA GEMPA TERHADAP PERUMAHAN WARGA DI KOTA PADANG Rafki Imani; Rita Nasmirayanti; Farhan Febrizoni; Deded Eka Sahputra
JURNAL RIVET Vol 6 No 01 (2026): Juni 2026
Publisher : Program Studi Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/rivet.v6i01.2692

Abstract

The building of Boarding houses are one form of urban housing with relatively high vulnerability to disasters, especially in densely populated and earthquake-prone areas such as Padang City. This study aims to evaluate the level of disaster risk in boarding house buildings through the integration of structural, non-structural, and non-technical assessments. The research was conducted using a descriptive quantitative approach based on a case study of a two-story boarding house in Lubuk Begalung District, Padang City. Data were collected through field observations, visual documentation, and interviews with the building owner. Risk assessment was carried out using a semi-quantitative method with hazard, vulnerability, and impact parameters on a scale of 1–5. The analysis results show that the main structure of the building is in fairly good condition, but hairline cracks were found on the walls, evacuation routes are narrow, and there is no availability of fire extinguishers, evacuation signs, or emergency response SOPs. The risk value for earthquake hazards is 73.4 (very high category), while for fire hazards it is 58.7 (high category). These findings indicate that the high level of risk is more influenced by weaknesses in non-structural and non-technical aspects compared to the condition of the main structure. This study emphasizes the importance of a mitigation approach that integrates physical improvements to the building with the enhancement of residents’ capacity and preparedness.
Co-Authors Aniendhita Rizki Amalia Asri Yuda Trinanda Chairi, Maiyozzi fachri Fakhru Rozi Farhan Febrizoni Fernando, Figo Hengki Kurniawan Imani, Rafki Kharisma Permata Sari Kurniawan, Willy Nanang Fatchurrohman Nanda Nasmirayanti, Rita Noto Dewantoro Randi, Randi Rita Nasmirayanti Rita Nasmirayanti Rita Nasmirayanti Weri, Weri