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肋環(huán)型剛性索穹頂結(jié)構(gòu)的靜動(dòng)力性能分析
岑迪欽
摘 要
(浙江大學(xué)建筑設(shè)計(jì)研究院, 杭州 310028)
摘要]為研究剛性索穹頂結(jié)構(gòu)的性能,以跨度為60m的肋環(huán)型剛性索穹頂結(jié)構(gòu)為例,分別對(duì)其進(jìn)行在滿跨和半跨均布荷載作用下的靜力性能和動(dòng)力性能分析,得到結(jié)構(gòu)的固有頻率及相應(yīng)的振型,并與相應(yīng)的肋環(huán)型索穹頂結(jié)構(gòu)相比較,總結(jié)了桿件內(nèi)力和位移的變化規(guī)律。結(jié)果顯示在滿跨均布向下荷載作用下,肋環(huán)型剛性索穹頂結(jié)構(gòu)的性能較為優(yōu)越;在半跨均布向下荷載作用下,肋環(huán)型剛性索穹頂結(jié)構(gòu)的性能略有改善;在滿跨及半跨均布向上荷載作用下,兩者性能較為相似。肋環(huán)型剛性索穹頂并沒有顯著改變現(xiàn)有肋環(huán)型索穹頂?shù)膭?dòng)力性能。
關(guān)鍵詞]剛性索穹頂結(jié)構(gòu); 環(huán)肋型索穹頂結(jié)構(gòu); 靜動(dòng)力性能; 性能比較
中圖分類號(hào):TU393.3      文獻(xiàn)標(biāo)識(shí)碼:A      文章編號(hào):1002-848X(2013)15-0076-04
 
Static and dynamic behavior analysis of Geiger rigid cable dome structure
Cen Diqin
(Architectural Design and Research Institute of Zhejiang University, Hangzhou 310028, China)
 
Abstract: In order to find out the behavior of rigid cable dome, a 60m-span Geiger rigid cable dome structure under full span uniform load and half span uniform load was studied.The natural frequency and corresponding mode of vibration, the changing patterns of member force and displacement were obtained by static and dynamic behavior analysis. Comparing with the conventional cable dome, conclusions were obtained as follows:the behavior of Geiger rigid cable dome is superior under full span uniform downward load, the behavior of Geiger rigid cable dome is slightly improved under half span uniform downward load, the behavior of Geiger rigid cable dome is similar with Geiger cable dome under full span and half span uniform upward load, the dynamic behavior of Geiger cable dome is not notable changered by Geiger rigid cable dome.
Keywords: rigid cable dome structure; cable dome structure; behavior comparison; statics; dynamics; Geiger dome
作者簡介:岑迪欽,碩士,工程師, Email:cdq041330@163.com。
 
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