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（1 西安建筑科技大學(xué) 710055； 2 蘭州交通大學(xué) 730070）
【提要】 借鑒橋梁工程中斜拉橋及我國建筑工程中屋蓋結(jié)構(gòu)的工程經(jīng)驗(yàn)，提出斜拉立體桁架結(jié)構(gòu)是一種有發(fā)展前途的大跨度雜交結(jié)構(gòu)，并對(duì)該結(jié)構(gòu)體系的幾種形式進(jìn)行了大量的靜力線性與幾何非線性分析，得到該結(jié)構(gòu)的受力和變形特征，提出設(shè)計(jì)中應(yīng)該意的幾個(gè)問題和有關(guān)參數(shù)，供初步設(shè)計(jì)中參考。
【關(guān)鍵詞】 斜拉結(jié)構(gòu) 立體桁架 大跨度 雜交結(jié)構(gòu) 幾何非線性分析
Features About Internal Forces and Displacements of Cablestayed Space Truss an
d Several Problems in Design/Sun Jianqin1，2, Wu Minzhe1，Li Conglin2（1 Xi'an University of Architecture and Technology, Xi'an 710055, China; 2 Lanzhou Jiaotong University, Lanzhou 730070, China）
Abstract:According to the experience of cablestayed bridges and roof structures in building engineering, it is presented that cablestayed space truss is a kind of long span hybrid structure with developing prospect. Some features about internal forces and displacements are obtained from a lot of linear and nonlinear analyses. Several problems and related parameters in the process of design can serve as reference for the engineer in the preliminary design.
Keywords:cablestayed structure; space truss; long span; hybrid structure; geom
etry nonlinear analysis