Comparative seismic RISK assessment of existing RC buildings using seismic vulnerability index approach
Document Type
Article
Publication Date
8-1-2021
Abstract
The implementation of seismic risk management is becoming increasingly important all over the world, and especially in East-Asia as the structures aging surpass. In this context, three existing reinforced concrete buildings located in Malaysia have been selected for seismic vulnerability assessment. This work aims to apply the Seismic Vulnerability Index (SVI) via a Non-Linear Parametric Analysis (NL-PA) for each of the 3 RC existing buildings having different storey levels and clusters; low-rise (BLR), mid-rise (BMR), and high-rise (BHR). This approach can be achieved by undertaking a NL-PA as an analytical strategy instead of the empirical approach, which relies primarily on physical vulnerability parameters, earthquake-resistant design (ERD), and engineering demand parameters (EDP) by simulating a set of seismic records that can define the fragility features. The assessed SVI values for three different clusters of buildings are obtained for Far-Field (FF) and Near-Field (NF) seismic scenarios. With regards to the non-linear static analysis (NL-SA), the SVI values interact very well with the findings acquired from the NL-DA which are in good compliance with the low-rise building, in contrast for the two mid-and high-rise buildings. According to the obtained probabilistic vulnerability curves, the reference buildings are classified to be in D2 and D3 damage grades with dominancy of D3 level for the mid-rise and high-rise structures.
Keywords
Seismic vulnerability index (SVI), Parametric analysis, Vulnerability classes, Fragility curves, Nonlinear analysis
Divisions
sch_civ
Publication Title
Stuctures
Volume
32
Publisher
Elsevier Science Inc
Publisher Location
STE 800, 230 PARK AVE, NEW YORK, NY 10169 USA