Experimental study of traffic-induced vibration of the new CCTV headquarters building
Experimental study of traffic-induced vibration of the new CCTV headquarters building作者机构：School of Civil Engineering Beijing Jiaotong University Beijing 100044 China Department of Civil and Structural Engineering The Hong Kong Polytechnic University Hong Kong China
出 版 物：《Journal of Civil Engineering and Architecture》 (土木工程与建筑（英文版）)
年 卷 期：2009年第3卷第3期
页 面：31-38页
学科分类：0810[工学-信息与通信工程] 08[工学] 082303[工学-交通运输规划与管理] 081001[工学-通信与信息系统] 082302[工学-交通信息工程及控制] 0823[工学-交通运输工程]
基 金：The study is sponsored by the National Natural Science Foundation of China (No. 50538010) and the Flander (Belgium)-China Bilateral Project ( No. BIL 07/07)
主 题：dynamic experiment traffic-induced vibration power spectrum half-power bandwidth method
摘 要：The traffic-induced vibrations of the new CCTV Headquarters building are studied stages. In the first stage when the through experiments in two 30th floor of the northwest tower and the 38th floor of the southeast tower were finished, the traffic flows on the roads surrounding the building were investigated, and 27 setups of accelerations were measured at the roadside, on the pile cap and on the 9th floor. In the second stage when the whole steel structure was completed, l 5 setups of accelerations were measured at the roadside, on the pile cap and on the 37th and the 48th floors. The accelerations of the building under different traffic flows, in different positions are analyzed in both time domain and frequency domain. The damping ratios are estimated by the upgraded half-power bandwidth method.
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