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（廣東省建筑設(shè)計(jì)研究院， 廣州 510010）

［摘要］通過屋面剛性殼體和索（桿）體系的不同破壞工況對(duì)肇慶新區(qū)體育館連體弦支穹頂結(jié)構(gòu)進(jìn)行防連續(xù)倒塌分析。結(jié)果表明，屋面剛性殼體、單根索（桿）體系均不會(huì)引起整體結(jié)構(gòu)破壞或其他拉索松弛；支撐體系的破壞會(huì)引起整體結(jié)構(gòu)的局部變形過大及構(gòu)件破壞，并對(duì)這些支撐體系補(bǔ)充防撞分析；對(duì)于構(gòu)件分布位置，從外環(huán)往內(nèi)環(huán)其重要程度依次降低；在設(shè)計(jì)過程中應(yīng)充分考慮結(jié)構(gòu)的安全儲(chǔ)備，提高重點(diǎn)部位構(gòu)件安全等級(jí)，針對(duì)施工和使用過程中不可抗力的意外破壞，結(jié)構(gòu)具備足夠的防連續(xù)倒塌能力。

［關(guān)鍵詞］肇慶新區(qū)體育館； 弦支穹頂； 防連續(xù)倒塌； 斷索分析

中圖分類號(hào)：TU398-7文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2016)21-0075-05

Progressive collapse resistance analysis on conjoined suspendome structure of  Zhaoqing New District Stadium

Ou Tong， Chen Jinyu， Tan Jian

(Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China)

Abstract:Progressive collapse resistance analysis of conjoined suspendome structure of Zhaoqing New District Stadium was carried out under different damage working conditions of roof rigid shell and cable system. The analysis results show that the roof rigid shell and single cable system does not cause the overall structural failure or other cable slack. The destruction of the supporting system can cause too large local deformation of the whole structure and destruction of the components, and anti-collision analysis is supplemented for the supporting system. For component distribution location, the importance degree of the components decreases from the outer ring to the inner ring. The security reserve of the structure should be fully considered in the process of design to improve safety level of the components in key parts. For the accident damage due to force majeure in construction and service processes, this structure has the enough progressive collapse resistance ability.

Keywords:Zhaoqing New District Stadium; suspendome; progressive collapse resistance; cable breaking analysis

作者簡(jiǎn)介：區(qū)彤，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：kogends@136.com。