Abstract
To assess the seismic demands of structures at different performance levels, the non-linear static analysis method (pushover) has always been of interest to researchers. However, the most important shortcoming of this analysis method pertains to the pattern of lateral load distribution, which has to be carefully selected, especially when buildings of great height enter the plastic range of behaviour, otherwise inaccurate results will be obtained. To tackle this issue, the researchers have proposed advanced approaches to modify the conventional non-linear static method accounting for the effects of higher modes. In this respect, a displacement-based adaptive pushover algorithm (DAPA) and an adaptive pushover analysis method (APAM), taking account of the effects of mode interaction, have recently come to light.
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