钢框架拟动力试验及两种实现方法的对比

Steel frame pseudodynamic testing and comparative analysis of two test methods

对两层钢框架结构模型分别进行了等效单自由度体系和多自由度体系的拟动力试验,并对2种体系的试验结果进行了对比分析。研究表明,等效单自由度体系拟动力试验可作为多自由度体系拟动力试验的一种替代选择,能基本准确地反映结构在给定地震波输入下的地震反应,从而提升了拟动力试验的实用价值。

Equivalent single-degree-of-freedom （ESDOF） seismic evaluation and multi-degree-of-freedom （MDOF） seismic evaluation of a two-story steel frame model are performed based on pseudodynamic testing, and the experiment results are comparatively analyzed. The research results show that ESDOF pseudodynamic testing can replace MDOF pseudodynamic testing, and it is capable to basically reflect structure＇s seismic response characteristics under the given earthquake wave, so pseudodynamic testing has practical application value.