Framework for seismic vulnerability assessment of reinforced concrete buildings in Australia

摘要

The project 'Cost-Effective Mitigation Strategy Development for Building Related Earthquake Risk' under the Bushfire and Natural Hazards Cooperative Research Centre (BNHCRC) aims to develop knowledge to facilitate evidence-based informed decision-making in relation to the need for seismic retrofitting, revision of codified design requirements and insurance policy. Seismic vulnerability assessment is an essential component in the project. The objective of this paper is to present the framework for carrying out vulnerability assessment of limited-ductile reinforced concrete (RC) buildings in Australia. This paper is organised into four parts: (ⅰ) overview of typical building construction in Australia and description of the three broad categories of vulnerable RC buildings identified by the authors; (ⅱ) identification and overview of case study buildings for seismic vulnerability assessment; (ⅲ) definition and description for each performance level and damage state, including recommended material strain limits and drift limits for RC buildings; and (ⅳ) hazard-consistent ground motion inputs for dynamic analyses.