合肥电视塔地震响应分析  

Seismic Vibration Analysis of Hefei TV Tower

作　　者：莫海熙[1] 朱太舟 陈恒福[3] 

机构地区：[1]东南大学管理学院系统工程所,江苏南京210096 [2]南京雨花城镇房地产开发有限公司 [3]南京图书馆基建处,江苏南京210018

出　　处：《工程抗震与加固改造》2006年第5期29-34,54,共7页Earthquake Resistant Engineering and Retrofitting

摘　　要：首先对合肥电视塔进行了动力特性分析,分析表明该塔具有明显的鞭梢效应和振型退化的特点,计算分析时,应考虑高振型的影响。其次分别输入El-Centro波(N-S)、Taft波和人工合成的合肥波,通过Newmark-β法对合肥电视塔进行地震响应分析,分析结果表明,结构的地震反应是多振型的组合。First of all, stochastic vibration analysis of Hefei TV Tower came to a conclusion that it has the feature-branch effect and vibration mode deterioration, and the influence of higher order mode shapes should be taken into account. Then, the seismic response of Hefei TV Tower under the El-Centro,Taft and simulated earthquake wave of Hefei excitations was performed using the Newmark-β method, and the result shows that the seismic responses of the tower are combined with the multi-vibrational modes.

关 键 词：电视塔 高耸结构 地震响应 鞭梢效应 

分 类 号：TU311.3[建筑科学—结构工程]