- 摘 要
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(華東建筑設(shè)計研究院有限公司 上海 200002)
［提要］ 結(jié)合中國平安金融大廈超限高層的結(jié)構(gòu)設(shè)計，詳細介紹了基礎(chǔ)與上部結(jié)構(gòu)設(shè)計及節(jié)點設(shè)計構(gòu)造，特別是針對這種外周圈為SRC框架結(jié)構(gòu)，中央為鋼管混凝土(CFT)柱、鋼梁以及鋼支撐構(gòu)成的框架支撐結(jié)構(gòu)體系。采用ETABS有限元程序?qū)Y(jié)構(gòu)在多遇地震作用下結(jié)構(gòu)構(gòu)件的強度、剛度、整體穩(wěn)定性進行分析，并選用上海市《建筑抗震設(shè)計規(guī)程》(DJ08—9—2003)所列的4條上海人工地震波對整體結(jié)構(gòu)進行了彈性動力時程分析補充計算，對整體結(jié)構(gòu)采用罕遇地震作用下靜力彈塑性Pushover分析。結(jié)果表明，該結(jié)構(gòu)體系是安全、可行的。
［關(guān)鍵詞］ CFT鋼管混凝土柱 鋼支撐 非線性靜力推覆分析 滑動支座
Structural Design of Pingan Finance Building/Chen Chunhui, Ding Shenggen, Hua Gengsheng, Gao Chao (East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)
Abstract:Referring to design of super highrise building of Pingan Finance Tower,the design of foundation,superstructure and joint construction,especially this frameshoring system consisting of SRC frame structure in the periphery and concrete filled steel tubular (CFT) column,steel beam and steel support in the middle are introduced.Based on the ETABS procedure,the strength,rigidity and integral stability of the structural member under the action of frequently occurred earthquake are analyzed;elastodynamic timeprocedure analysis on integral structure are carried out in adoption of Shanghai artificial seismic wave listed in 4 items of Code for Seismic Design of Building(DJ08—9—2003),and pushover analysis on overall structure under the action of rare occurrence earthquake is finished.The results show that this structure is safe and reliable.
Keywords:CFT concrete filled steel tubular column; steel brace; nonlinear static pushover analysis; sliding support
