Seismic Fragility of Tall Concrete Wall Structures in Malaysia under Far-Field Earthquakes
Siti Aisyah1, Mohammadreza Vafaei1, *, Sophia C. Alih2, Kotaiba Aljwim1
Identifiers and Pagination:Year: 2019
First Page: 140
Last Page: 146
Publisher Id: TOCIEJ-13-140
Article History:Received Date: 20/07/2019
Revision Received Date: 12/08/2019
Acceptance Date: 29/08/2019
Electronic publication date: 15/11/2019
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
In recent years, the seismic vulnerability of structures in Malaysia has attracted the attention of researchers mainly because the majority of existing structures have not been designed for seismic actions. In this study, seismic vulnerability of tall concrete wall buildings has been investigated through the development of seismic fragility curves.
Two 25-story tall buildings with similar plans but with the different number of parking levels were analyzed through the incremental dynamic analysis. The tall buildings were excited by 15 far-field earthquakes, and their inter-story drift demands and capacities were estimated. Nonlinear response of beams and columns was simulated through the lumped plasticity model. The inelastic response of concrete walls was taken into account through the use of distributed plasticity fibre-based elements.
Results and Conclusion:
The obtained results indicated that the probability of exceeding minor damage to the tall concrete wall buildings located in the Kuala Lumpur city was around 55%. However, the probability of collapse of these structures in the same city was less than 15%.