Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting
Understanding the vulnerability of school shelters to tsunamis is crucial for developing effective mitigation strategies and increasing the resilience of coastal communities in the education sector. SDN 02 Sasak Ranah Pasisia, an elementary school in West Pasaman Regency, West Sumatera, Indonesia,...
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Universitas Gadjah Mada
2025-01-01
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| Series: | Journal of the Civil Engineering Forum |
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| Online Access: | https://jurnal.ugm.ac.id/v3/JCEF/article/view/13432 |
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| author | Fauzan Zev Al Jauhari Geby Aryo Agista Atsushi Yokota Masharya Eko Putra |
| author_facet | Fauzan Zev Al Jauhari Geby Aryo Agista Atsushi Yokota Masharya Eko Putra |
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Understanding the vulnerability of school shelters to tsunamis is crucial for developing effective mitigation strategies and increasing the resilience of coastal communities in the education sector. SDN 02 Sasak Ranah Pasisia, an elementary school in West Pasaman Regency, West Sumatera, Indonesia, had a shelter building constructed in 2010. However, the construction remains incomplete. A structural assessment using current Indonesian building codes and vulnerability analysis is necessary to proceed with construction and ensure the building’s strength against the working loads. Thestructural assessment revealed that several columns could not support the working load, necessitating local retrofitting. In this study, the retrofitting of the building was designed using concrete jacketing. Furthermore, structural fragility curves of the school building were developed before and after retrofitting against earthquake and tsunami loads. The seismic fragility curve was determined from the maximum displacement of the building for varied earthquake acceleration, using nonlinear time history dynamic response analysis scaled using the incremental dynamic analysis method and damage limits defined by ATC-40, characterized by Hazus. Meanwhile, the tsunami fragility curve was determined from the maximum displacement due to tsunami load for each variation of tsunami inundation depth. The vulnerability analysis results indicated that retrofitting the school building with concrete jacketing reduces the probability of building damage due to earthquake loads by 18% at the level of complete damage at a PGA of 0.520 g (based on the Indonesian Seismic Map). Similarly, it reduced the probability of building damage due to tsunami loads by 20%, at the level of complete damage corresponding to a tsunami wave height of 5.00 m for West Pasaman, Indonesia.
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| format | Article |
| id | doaj-art-515488135ffa4743b3a71aa147f252fa |
| institution | Kabale University |
| issn | 2581-1037 2549-5925 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Universitas Gadjah Mada |
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| series | Journal of the Civil Engineering Forum |
| spelling | doaj-art-515488135ffa4743b3a71aa147f252fa2025-01-18T06:58:20ZengUniversitas Gadjah MadaJournal of the Civil Engineering Forum2581-10372549-59252025-01-0111110.22146/jcef.13432Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without RetrofittingFauzan0Zev Al Jauhari1Geby Aryo Agista2Atsushi Yokota3Masharya Eko Putra4Department of Civil Engineering, Andalas University, Padang, INDONESIAGraduate School of Engineering, Toyohashi University of Technology, Toyohashi, JAPANDepartment of Civil Engineering, Andalas University, Padang, INDONESIADepartment of Architecture and Civil Engineering, Toyohashi University of Technology, Toyohashi, JAPANDepartment of Civil Engineering, Andalas University, Padang, INDONESIA Understanding the vulnerability of school shelters to tsunamis is crucial for developing effective mitigation strategies and increasing the resilience of coastal communities in the education sector. SDN 02 Sasak Ranah Pasisia, an elementary school in West Pasaman Regency, West Sumatera, Indonesia, had a shelter building constructed in 2010. However, the construction remains incomplete. A structural assessment using current Indonesian building codes and vulnerability analysis is necessary to proceed with construction and ensure the building’s strength against the working loads. Thestructural assessment revealed that several columns could not support the working load, necessitating local retrofitting. In this study, the retrofitting of the building was designed using concrete jacketing. Furthermore, structural fragility curves of the school building were developed before and after retrofitting against earthquake and tsunami loads. The seismic fragility curve was determined from the maximum displacement of the building for varied earthquake acceleration, using nonlinear time history dynamic response analysis scaled using the incremental dynamic analysis method and damage limits defined by ATC-40, characterized by Hazus. Meanwhile, the tsunami fragility curve was determined from the maximum displacement due to tsunami load for each variation of tsunami inundation depth. The vulnerability analysis results indicated that retrofitting the school building with concrete jacketing reduces the probability of building damage due to earthquake loads by 18% at the level of complete damage at a PGA of 0.520 g (based on the Indonesian Seismic Map). Similarly, it reduced the probability of building damage due to tsunami loads by 20%, at the level of complete damage corresponding to a tsunami wave height of 5.00 m for West Pasaman, Indonesia. https://jurnal.ugm.ac.id/v3/JCEF/article/view/13432Shelter School BuildingSeismicTsunamiConcrete JacketingFragility Curve |
| spellingShingle | Fauzan Zev Al Jauhari Geby Aryo Agista Atsushi Yokota Masharya Eko Putra Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting Journal of the Civil Engineering Forum Shelter School Building Seismic Tsunami Concrete Jacketing Fragility Curve |
| title | Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting |
| title_full | Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting |
| title_fullStr | Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting |
| title_full_unstemmed | Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting |
| title_short | Seismic and Tsunamis Vulnerability Assessment of the Shelter School Building Structure with and without Retrofitting |
| title_sort | seismic and tsunamis vulnerability assessment of the shelter school building structure with and without retrofitting |
| topic | Shelter School Building Seismic Tsunami Concrete Jacketing Fragility Curve |
| url | https://jurnal.ugm.ac.id/v3/JCEF/article/view/13432 |
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