EVALUATION OF EARTHQUAKE RESPONSE OF SINGLE-STORY UNSYMMETRIC BUILDINGS BY EQUIVALENT LINEARIZATION METHOD CONSIDERING HIGHER MODE

This paper describes evaluation of torsional response by equivalent linearization method considering higher mode response. In the authors' study, the equivalent linearization method (after named NoLMM) considering higher mode response for multi-story symmetric buildings was proposed. In this study, NoLMM method is extended for torsional response and adapted to single-story unsymmetric buildings. The NoLMM analysis results agree with that of time domain dynamic analysis. It is important to consider not only higher mode responses but also modes interaction in the analysis of unsymmetric buildings. Accuracy of analysis results is improved by considering failure process.