Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah

June 5th 2015 incident in Ranau, Sabah has brought the attention of both local and international researchers due to the 6.0 magnitude of earthquake that hit the district. It was the most powerful earthquake ever recorded in Borneo for the past 120 years since 1900. The records of loses demonstrate t...

Full description

Bibliographic Details
Main Author: Viliana Jainih
Format: Thesis
Language:English
English
Published: 2020
Subjects:
Online Access:https://eprints.ums.edu.my/id/eprint/41231/1/24%20PAGES.pdf
https://eprints.ums.edu.my/id/eprint/41231/2/FULLTEXT.pdf
_version_ 1825715830466281472
author Viliana Jainih
author_facet Viliana Jainih
author_sort Viliana Jainih
collection UMS
description June 5th 2015 incident in Ranau, Sabah has brought the attention of both local and international researchers due to the 6.0 magnitude of earthquake that hit the district. It was the most powerful earthquake ever recorded in Borneo for the past 120 years since 1900. The records of loses demonstrate the significant needs for seismic vulnerability assessment on the existing buildings in the effected state. The objective of this study is to investigate the building vulnerabilities in the capital city of Sabah, Kota Kinabalu. Then, to establish a performance level of the existing buildings. Case buildings include major government buildings and facilities, educational and institutional buildings, residential buildings, commercial as well as public buildings. The empirical vulnerability assessment involves 250 number of buildings evaluations by Rapid Visual Screening according to FEMA 154 (2002). Local ground motion data indicates that Sabah is a region with moderate seismicity level. Case buildings ranging from low-rise to high-rise were screened with Level 1 assessment form and categorized into two groups; hazardous and non-hazardous, based on the determined final value “cut-off value”. 60.4% of the case buildings deem to be potentially seismically hazardous under local ground excitation. 38.54% of the building stock possesses limiting seismic performance criteria and put forward for further seismic vulnerability assessment. Second part of this study involves analytical vulnerability assessment by means of Nonlinear Static Analysis (Pushover Analysis) using Capacity Spectrum Method. 7 case buildings were modeled into engineering software and evaluated with the highest expected ground excitation magnitude at 0.17ag with 10% probability of exceedance (PE) and 50 years design time period with respect to 2,475 return periods. Considering elastic damping at β° = 5% , all case buildings are assumed to be Type B category. Analysis of building performance results show majority of the building stock give a linearly elastic response under the local seismic excitation. Structures without seismic code compliance were estimated to show early damage accumulation due to ground shaking.
first_indexed 2024-12-09T00:51:56Z
format Thesis
id ums.eprints-41231
institution Universiti Malaysia Sabah
language English
English
last_indexed 2024-12-09T00:51:56Z
publishDate 2020
record_format dspace
spelling ums.eprints-412312024-10-16T05:54:39Z https://eprints.ums.edu.my/id/eprint/41231/ Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah Viliana Jainih TA630-695 Structural engineering (General) June 5th 2015 incident in Ranau, Sabah has brought the attention of both local and international researchers due to the 6.0 magnitude of earthquake that hit the district. It was the most powerful earthquake ever recorded in Borneo for the past 120 years since 1900. The records of loses demonstrate the significant needs for seismic vulnerability assessment on the existing buildings in the effected state. The objective of this study is to investigate the building vulnerabilities in the capital city of Sabah, Kota Kinabalu. Then, to establish a performance level of the existing buildings. Case buildings include major government buildings and facilities, educational and institutional buildings, residential buildings, commercial as well as public buildings. The empirical vulnerability assessment involves 250 number of buildings evaluations by Rapid Visual Screening according to FEMA 154 (2002). Local ground motion data indicates that Sabah is a region with moderate seismicity level. Case buildings ranging from low-rise to high-rise were screened with Level 1 assessment form and categorized into two groups; hazardous and non-hazardous, based on the determined final value “cut-off value”. 60.4% of the case buildings deem to be potentially seismically hazardous under local ground excitation. 38.54% of the building stock possesses limiting seismic performance criteria and put forward for further seismic vulnerability assessment. Second part of this study involves analytical vulnerability assessment by means of Nonlinear Static Analysis (Pushover Analysis) using Capacity Spectrum Method. 7 case buildings were modeled into engineering software and evaluated with the highest expected ground excitation magnitude at 0.17ag with 10% probability of exceedance (PE) and 50 years design time period with respect to 2,475 return periods. Considering elastic damping at β° = 5% , all case buildings are assumed to be Type B category. Analysis of building performance results show majority of the building stock give a linearly elastic response under the local seismic excitation. Structures without seismic code compliance were estimated to show early damage accumulation due to ground shaking. 2020 Thesis NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/41231/1/24%20PAGES.pdf text en https://eprints.ums.edu.my/id/eprint/41231/2/FULLTEXT.pdf Viliana Jainih (2020) Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah. Masters thesis, University Malaysia Sabah.
spellingShingle TA630-695 Structural engineering (General)
Viliana Jainih
Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah
title Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah
title_full Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah
title_fullStr Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah
title_full_unstemmed Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah
title_short Seismic vulnerability assesment of selected buildings in Kota Kinabalu, Sabah
title_sort seismic vulnerability assesment of selected buildings in kota kinabalu sabah
topic TA630-695 Structural engineering (General)
url https://eprints.ums.edu.my/id/eprint/41231/1/24%20PAGES.pdf
https://eprints.ums.edu.my/id/eprint/41231/2/FULLTEXT.pdf
work_keys_str_mv AT vilianajainih seismicvulnerabilityassesmentofselectedbuildingsinkotakinabalusabah