- 摘 要
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(1 同濟大學土木工程學院, 上海 200092; 2 同濟大學建筑設(shè)計研究院(集團), 上海 200092;3 北京江河幕墻股份有限公司, 北京 101300)
[摘要]結(jié)合杭州火車東站工程,對溫差引起的巨型斜柱外包不銹鋼幕墻溫度應力及其內(nèi)部鋼龍骨支撐的內(nèi)力效應進行了研究。通過不同季節(jié)的現(xiàn)場監(jiān)測,得到了相應部位的應力、軸力隨溫度及時間變化的規(guī)律。采用ANASYS有限元軟件建立了巨型斜柱、幕墻龍骨、不銹鋼板的整體模型,計算了不同溫差工況下不銹鋼板應力及龍骨軸力的變化。通過現(xiàn)場監(jiān)測及數(shù)值模擬的對比研究,驗證了該幕墻體系能經(jīng)受較大室外溫度變化,且表面變形不明顯,能滿足建筑結(jié)構(gòu)的正常使用要求。
[關(guān)鍵詞]鋼結(jié)構(gòu); 巨型斜柱; 不銹鋼; 幕墻; 溫度效應
中圖分類號:TU391,TU511.3文獻標識碼:A文章編號:1002-848X(2014)01-0032-06
Study on temperature effects for outsourcing stainless steel curtain wall system of the mega steel truss column
Jia Bin1, Lei Ke1, Yang Bin1, Yang Zonglin2, Zhang Qilin1, Chen Deyi3
(1 School of Civil Engineering, Tongji University, Shanghai 200092, China; 2 Tongji Architectural Design(Group)Co., Ltd., Shanghai 200092, China; 3 Beijing Jangho Curtain Wall Co., Ltd., Beijing 101300, China)
Abstract: Study was carried on the thermal stress, internal force effect caused by temperature difference about outsourcing stainless steel curtain wall of the mega steel truss column based on Hangzhou East Railway Station project.The variation rule of stress and axial force in corresponding position of curtain wall system was obtained by site monitoring in different seasons. An entire mathematical model of mega-column, curtain keel and corrosion resistant plate was established by ANASYS, furthermore the stainless steel sheets and steel keels were calculated at different temperature conditions. Through comparative study between site monitoring and numerical simulation, it has been verified that the curtain wall system can withstand the test of ambient temperatures, and deformation of the curtain wall surface system is much small. In general, this curtain wall system has good performance to meet the demand of normal use.
Keywords: steel structure; mega-column; stainless steel; curtain wall; temperature effect
*國家十二五科技支撐計劃項目(2011BAJ08B10)。
作者簡介:賈斌,博士研究生,Email:dr_jiabin@sina.com。
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