- 摘 要
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（1 商丘工學(xué)院土木工程學(xué)院， 商丘 476000； 2 合肥工業(yè)大學(xué)土木與水利工程學(xué)院， 合肥 230009； 3 安徽富煌鋼構(gòu)股份有限公司， 巢湖 238076）
［摘要］以福州海峽國際會展中心主體結(jié)構(gòu)為工程背景，對其進(jìn)行抗連續(xù)性倒塌分析?；趹?yīng)變能的分析原理，采用拆除構(gòu)件法對主體結(jié)構(gòu)進(jìn)行響應(yīng)分析，確定對結(jié)構(gòu)承載力影響最大的關(guān)鍵性構(gòu)件。采用變換荷載路徑法對移除關(guān)鍵構(gòu)件的殘余結(jié)構(gòu)進(jìn)行抗連續(xù)性倒塌分析。結(jié)果表明，移除關(guān)鍵構(gòu)件后結(jié)構(gòu)豎向撓度超過設(shè)計限值，結(jié)構(gòu)失去正常使用功能，但構(gòu)件應(yīng)力比均未超限且移除的影響局限在其受力范圍內(nèi)，所以結(jié)構(gòu)具有良好的抗連續(xù)性倒塌能力。
［關(guān)鍵詞］鋼結(jié)構(gòu)； 拆除構(gòu)件法； 關(guān)鍵性系數(shù)； 變換荷載路徑法； 連續(xù)倒塌
中圖分類號：TU393文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)16-0014-05
Progressive collapse analysis of Fuzhou Strait International Convention and Exhibition Center
Zhang Xuanming1, Jiang Qing2, Zhang Wei1, Shen Wanyu3, Zheng Chaolei1
(1 School of Civil Engineering, Shangqiu Institute of Technology, Shangqiu 476000, China; 2 School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China; 3 Anhui Fuhuang Steel Structure Co., Ltd., Chaohu 238076, China)
Abstract:The progressive collapse analysis of the main structure of the Fuzhou Strait International Convention and Exhibition Center was carried out. Based on the analysis of the strain energy, the response of the main structural members was analyzed by using the member removal method to determine the key structural members that have largest impact on structural bearing capacity. The progressive collapse analysis was conducted on the residual structure without the key components by using the load path transforming method. The results show that the vertical deflection of the structure without key members exceeds the design limit and the structure loses normal function, but the stress ratio of the member is not out\|of\|code and the effect of member removal is limited in its stress range, so the structure has good resistance to progressive collapse.
Keywords:steel structure; member removal method; critical coefficient; load path transforming method; progressive collapse
作者簡介：張煊銘，碩士，工程師，Email: 403807526@qq.com。
