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丁陽(yáng)1,2，孫健1

（1 天津大學(xué)建筑工程學(xué)院，天津 300072;  2 天津大學(xué)濱海土木工程結(jié)構(gòu)與安全教育部重點(diǎn)實(shí)驗(yàn)室，天津 300072）

 

［摘要］天津大劇院采用了國(guó)內(nèi)外應(yīng)用不多的吊掛結(jié)構(gòu)體系。以天津大劇院的吊掛結(jié)構(gòu)為工程背景，對(duì)其進(jìn)行抗連續(xù)倒塌性能分析。根據(jù)吊桿負(fù)荷面積，采用基于能量的方法，計(jì)算吊桿的重要性系數(shù)，確定關(guān)鍵吊桿。對(duì)單根關(guān)鍵吊桿失效和兩根關(guān)鍵吊桿同時(shí)失效的情況，采用靜力非線(xiàn)性方法對(duì)剩余結(jié)構(gòu)進(jìn)行響應(yīng)分析。結(jié)果表明，單根吊桿失效時(shí)，吊掛結(jié)構(gòu)不會(huì)發(fā)生坍塌；標(biāo)高+20.9m吊掛層轉(zhuǎn)角區(qū)域兩根吊桿同時(shí)失效時(shí)，吊掛結(jié)構(gòu)發(fā)生局部坍塌，使用過(guò)程中應(yīng)注意該區(qū)域吊桿的監(jiān)測(cè)。

［關(guān)鍵詞］天津大劇院；吊掛結(jié)構(gòu)；吊桿；移除構(gòu)件法；連續(xù)倒塌

中圖分類(lèi)號(hào)：TU323      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2013)10-0016-05

 

Progressive collapse analysis on the suspension structure of Tianjin Grand Theatre

Ding Yang1,2, Sun Jian1

（1 School of Civil Engineering, Tianjin University, Tianjin 300072, China;  2 Key Laboratory of Coast Civil Structure Safety China Ministry of Education, Tianjin University, Tianjin 300072, China）

 

Abstract: Tianjin Grand Theatre adopts a structural system of suspension. This system has few applications in the world. The resistance behavior of the system to progressive collapse was analyzed. In terms of the bearing area of suspenders, importance coefficients were evaluated and critical suspenders were determined using an energy method. Using a static nonlinear approach, the response of the residual structure was analyzed under the cases of either the failure of single suspender or the simultaneous failure of double suspenders. Results show that the Tianjin Grand Theatre would not collapse if only one suspender fails. However, when two suspenders simultaneously fail at some locations, local collapse will occur. Suspension structure partially collapses when two suspenders in the corner area of 20.9 high suspended layers fail at the same time. Therefore, it is suggested that the monitoring of these critical suspenders be needed when the suspension structure is in use.

Keywords: Tianjin Grand Theatre; suspension structure; suspenders; method of removing critical members; progressive collapse

*天津市科技支撐計(jì)劃重大項(xiàng)目(11ZCZDSF04800)。

作者簡(jiǎn)介：丁陽(yáng)，博士，教授，Email:dingyang@tju.edu.cn。

 

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