Seismic Fragility of Tall Concrete Wall Structures in Malaysia under Far-Field Earthquakes: Seismic Fragility of Tall Buildings in Malaysia



Siti Aisyah1, Mohammadreza Vafaei1, *, Sophia C. Alih2, Kotaiba Aljwim1
1 Faculty of Engineering, School of Civil Engineering, Universiti Teknologi Malaysia, Skudai, Malaysia
2 Inistitute of Noise and Vibration, School of Civil Engineering, Universiti Teknologi Malaysia, Skudai, Malaysia

Abstract

Introduction:

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.

Methods:

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 Conclusions:

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%.

Keywords: Seismic Fragility, Tall buildings, Incremental dynamic analysis, Malaysia, Far-field earthquakes, Concrete wall structures.


Abstract Information


Identifiers and Pagination:

Year: 2019
Volume: 13
Publisher Item Identifier: EA-TOCIEJ-2019-36

Article History:

Electronic publication date: 27/09/2019

© 2019 Aisyah et al.

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.


* Address correspondence to this author at Faculty of Engineering, School of Civil Engineering, Universiti Teknologi Malaysia, Skudai, Malaysia Tel: +607-5531684 | Ext.:31684; Fax: +607-5566157; E-mail: vafaei@utm.my