Evaluation of amplitude-dependent damping and natural frequency of buildings during strong winds

被引:225
作者
Tamura, Y
Suganuma, SY
机构
[1] Dept. of Architectural Engineering, Faculty of Engineering, Tokyo Institute of Polytechnics, Atsugi, Kanagawa
关键词
air-traffic control tower; damping ratio; full-scale measurement; natural frequency; nonlinear structure; random decrement technique; wind-induced response;
D O I
10.1016/0167-6105(96)00003-7
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper proposes an RDT ranked by peak amplitude for directly and effectively evaluating the amplitude dependences of dynamic phenomena. It first theoretically explains the principle of RDT based on a conditional expectation. Then, it shows that a modified conditional expectation enables the RDT to estimate amplitude dependences, and derives the RDT ranked by the peak amplitude. Analytical and numerical examples are examined for a simple SDOF model. The proposed technique is then applied to wind-induced response data of three towers and the results are compared with those of the traditional technique.
引用
收藏
页码:115 / 130
页数:16
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