Abstract
A series of studies have been conducted on the following subjects concerning the standards for judging seismic performances of ordinary seismic resistant, vibration controlled or seismic isolated buildings in JSCA performance menu, which are described in detail in the reference literature 2). 1) To establish the value to demonstrate safety limit corresponding ultimate limit state of structures; 2) to review the limit of margin I and II levels for each evaluation item; and 3) to review weighing factors for structural performance evaluation items. Revised standards for judging performances and the corresponding revision of weighing factors are described herein based on results of the study. Although the study is based on limited experimental and/or analysis data, authors believe that the proposed standards provide more rational bases for judging seismic performance evaluation of buildings.
