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（1 中國建筑設(shè)計研究院有限公司， 北京 100044； 2 北京交通大學(xué)土木工程學(xué)院, 北京 100044）
［摘要］媯汭劇場鋼結(jié)構(gòu)屋面工程為大跨屋蓋超限建筑。針對鋼結(jié)構(gòu)屋面工程超限實際情況，對相關(guān)超限計算分析手段和超限設(shè)計措施予以闡述。主要研究內(nèi)容包括：結(jié)構(gòu)整體穩(wěn)定設(shè)計、風(fēng)荷載作用分析、結(jié)構(gòu)性能化設(shè)計、地震時程分析、防連續(xù)倒塌設(shè)計、溫度應(yīng)力分析、典型施工狀態(tài)分析、單榀桁架復(fù)核設(shè)計、節(jié)點設(shè)計。分析結(jié)果表明，通過采用系統(tǒng)的超限計算分析和超限設(shè)計措施，鋼結(jié)構(gòu)屋面體系的超限情況得到針對性設(shè)計加強，結(jié)構(gòu)安全、可靠，結(jié)構(gòu)設(shè)計可行。
［關(guān)鍵詞］2019北京世園會； 媯汭劇場； 大跨屋蓋； 懸挑桁架； 超限工程
中圖分類號：TU393-3文獻標(biāo)識碼：A文章編號：1002-848X(2019)17-0020-09
Out-of-code design and analysis on steel structure roof of Guirui Theatre of International Horticultural Exhibition 2019, Beijing, China
Zhu Yufeng1, Zhang Lu1, Zhang Jian2; Cui Xiaolian1, Guo Qiang1
（1 China Architecture Design & Research Group, Beijing 100044, China; 2 School of Civil Engineering, Beijing Jiaotong Univerisity, Beijing 100044, China）
Abstract:The steel structure roof project of Guirui Theatre is a large-span roof out-of-code building. In view of the actual out-of-code situation of steel roof engineering, the relevant out-of-code calculation and analysis means and design measures were expounded. The main research contents include structural overall stability design, wind load analysis, structural performance-based design, seismic time-history analysis, anti-progressive design, temperature stress analysis, typical construction state analysis, single truss review design and joint design. The analysis results show that, by using the systematic out-of-code calculation analysis and design measures, the out-of-code condition of the steel structure roof system is strengthened by targeted design. The structure is safe and reliable, and the structure design is feasible.
Keywords:International Horticultural Exhibition 2019, Beijing, China; Guirui Theatre; long-span roof; cantilever truss; out-of-code project
通訊作者：張路，博士，教授級高級工程師，Email: 499686486@qq.com。
