用系统识别方法研究大底盘、底部大空间高层建筑抗震性能

A STUDY ON THE EARTHQUAKE-RESISTANT CHARACTERISTICS OF A TALL BUILDING WITH LARGE SLABS AND SPACE IN THE BOTTOM USING SYSTEM IDENTIFICATION

本文以作者在同济大学工程结构研究所4×4m模拟地震振动台上所做的小比例微粒混凝土十八层结构模型试验为基础,运用系统识别方法研究了这种结构的动力计算模型和弹塑性动力反应,寻出其在地震作用下反应特征和抗震薄弱环节,并提出一些设计建议。

This paper is based on the shaking table test of one small-scale micr-oconcrete eighteen-story building, which was done in the Engineering structure Institution of Tongji University. In this paper, using system identification method , study its dynamic model and elastroplastic dynamic response.The special dynamic response properties and the weak links of earthquakeresistant have been found.And some design suggestions have been Pzestent.