- 摘 要
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（1 山東科技大學山東省土木工程防災減災重點實驗室， 青島 266590; 2 廣州容柏生建筑結構設計事務所， 廣州 510170）
［摘要］太原某辦公樓結構高度149-4m，抗側力體系為鋼筋混凝土框架-核心筒結構。本工程存在扭轉不規(guī)則，具體介紹了結構方案優(yōu)化，包括剪力墻布置、雙連梁、墻縮進、剪力墻開洞、次梁布置。對該項目進行了抗震性能化設計，根據(jù)構件的重要性給出了不同的性能目標，采用有限元法對結構的多遇地震、設防地震彈性響應進行了分析，建立了彈塑性計算模型并進行了罕遇地震動力彈塑性時程分析。針對結構不規(guī)則，采取了相應的設計措施。分析結果表明，本工程能滿足規(guī)范的各項抗震設防要求，結構具有可靠的抗震承載能力。
［關鍵詞］框架核心筒結構； 彈塑性時程分析； 抗震性能設計
中圖分類號：TU375文獻標識碼：A文章編號：1002-848X(2018)21-0038-04
Structural design of an out-of-code high-rise building in Taiyuan
Ma Jianglin1, Pang Bo1, Wang Xin2
(1 Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590,China; 2 RBS Architecture Engineer Design Associates, Guangzhou 510170, China)
Abstract:The structural height of an office building in Taiyuan is 149-4m. The anti-lateral force system is reinforced concrete frame-core tube structure. Torsional irregularity exists in this building. The optimization of structural schemes was introduced in detail, including shear wall layout, double coupling beam, wall indentation, shear wall with openings and secondary beam arrangement. Performance-based seismic design was conducted and different performance objectives were given according to the importance of the members. Finite element numerical method was used to analyze the structural elastic responses under frequent and fortification earthquakes. Elasto-plastic calculation model was built to conduct dynamic elasto-plastic time-history analysis under rare earthquake. The corresponding measures in the design were adopted for the irregular structure. The analysis results show that this building can meet the specification requirements for seismic resistance and has reliable seismic bearing capacity.
Keywords:frame-corewall structure; elastic-plastic time-history analysis; performance-based seismic design
通訊作者：王欣，碩士，一級注冊結構工程師，Email:75516667@qq.com。
