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(華東建筑設(shè)計(jì)研究院有限公司  上海 200002)
［提要］  建設(shè)中的浦東國(guó)際機(jī)場(chǎng)T2航站樓采用了Y形柱支承的多跨連續(xù)張弦梁這一新型的結(jié)構(gòu)體系，為確保該結(jié)構(gòu)的安全、合理、經(jīng)濟(jì)，采用模型風(fēng)洞試驗(yàn)、數(shù)值風(fēng)洞模擬和等效靜力風(fēng)荷載計(jì)算等方法確定屋面風(fēng)荷載分布和大小，進(jìn)行了考慮材料非線性和幾何非線性的彈塑性整體穩(wěn)定性分析及動(dòng)力彈塑性時(shí)程分析，以研究鋼屋蓋的整體受力性能。對(duì)一些創(chuàng)造性應(yīng)用的節(jié)點(diǎn)，同時(shí)進(jìn)行了足尺試驗(yàn)和有限元分析。研究結(jié)果表明，這一新型結(jié)構(gòu)體系在本工程中的運(yùn)用是合適和成功的。
［關(guān)鍵詞］  多跨連續(xù)張弦梁  Y形柱  模型風(fēng)洞試驗(yàn)  數(shù)值風(fēng)洞模擬  等效靜力風(fēng)荷載  整體穩(wěn)定性分析  動(dòng)力彈塑性時(shí)程分析  理想萬(wàn)向鉸接節(jié)點(diǎn)
Design and Research on Roof Structure of Pudong International Airport Terminal 2/Wang Dasui，Zhou Jian, Liu Qingyun, Zhang Fulin (East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)
Abstract:A new system named Y shape columns supported continuous beam string structure is designed for the roof of terminal 2 of Pudong International Airport. To secure the safeness and efficiency of the new system, windtunnel test,numerical simulation of windtunnel and equivalent static wind load calculation are introduced to obtain the accurate wind load distribution. Nonlinear stability analysis and elasticplastic dynamic analysis are used to explore the behavior of the roof structure due to various load combinations. Full scale element tests and FEQ analysis are conducted to study the performances of crucial joints which are used in building structure for the first time. The conclusion is drawn from the research that the use of the new structure system in this project is proper and successful.
Keywords:continuous beam string structure; Yshape columns; windtunnel test; numerical simulation; equivalent static wind load; nonlinear stability analysis; elasticplastic dynamic analysis; ideal spatial hinged joint
*上海市科委資助項(xiàng)目。