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［摘要］針對(duì)連云港體育中心體育場(chǎng)頂篷預(yù)應(yīng)力斜拉鋼網(wǎng)格結(jié)構(gòu)工程中拉索張拉力大、數(shù)目多、相互影響大、卸載后結(jié)構(gòu)變形大的特點(diǎn)，通過ANSYS有限元分析軟件對(duì)不同張拉方式進(jìn)行對(duì)比分析，包括初始預(yù)應(yīng)力態(tài)結(jié)構(gòu)分析、張拉拉索前拆除滿堂支架結(jié)構(gòu)分析、滿堂支架支撐網(wǎng)殼時(shí)虛擬張拉分析及局部拆除支架的虛擬張拉分析，掌握了預(yù)應(yīng)力拉索張拉過程中索力變化和結(jié)構(gòu)變形的規(guī)律，最終選取主動(dòng)張拉桅桿外側(cè)的背索，被動(dòng)張拉屋面上的前索的施工方案。并對(duì)拉索的施工方案做了介紹。
［關(guān)鍵詞］斜拉鋼網(wǎng)格；預(yù)應(yīng)力拉索；虛擬張拉；結(jié)構(gòu)分析
中圖分類號(hào)：TU757文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)10-0054-04
Construction analysis of prestressed cable-stayed steel grid structure Liu Tong1, Luo Bin2, Ling Qingjun3(1 Civil Engineering College of Yancheng Institute of Technology, Yancheng 224051, China; 2 Civil Engineering College of Southeast University, Nanjing 210096, China;  3 Nanjing Dong-da Modern Prestressed Engineering Co., Ltd., Nanjing 210018, China)
Abstract:The cable of the prestressed cabel-stayed steel grid structure in the roof of Lianyungang Stadium has the characteristics of large tensioning force and amount, great mutual influence and big structure deformation after unloading. Different tensioning methods, including prestressed initial state, demolishing scaffolding state before tensioning, scaffolding state, partially demolishing scaffolding state, were analyzed by ANSYS software. The variation of the cable force and the deformation of the mast during the tension process was obtained. The construction project of dorsal-cable at lateral actively tensioned and anterior cable at roof passively tensioned were selected. The construction process of the prestressed cable was described.Keywords:cable-stayed steel grid structure； prestressed cable； virtual tension； structural analysis
作者簡(jiǎn)介：劉桐，碩士，副教授，Email:liutongpc@yahoo.com.cn。
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