两种斜交式索桁架构形解析法  

Analytic method for two types of diagonal cable truss configuration

作　　者：王振华 缪超 吴奉蔚 WANG Zhen-hua;MIAO Chao;WU Feng-wei(College of Urban Construction,Zhejiang Shuren University,Hangzhou 310015,China;Hangzhou Grand Canal Group Construction Management Co.,Ltd.,Hangzhou 310011,China;Zhejiang Yousheng Structure Science&Technology Co.,Ltd.,Hangzhou 310058,China)

机构地区：[1]浙江树人学院城建学院,浙江杭州310015 [2]杭州运河集团建设管理有限公司,浙江杭州310011 [3]浙江宥盛建筑科技有限公司,浙江杭州310058

出　　处：《空间结构》2024年第4期33-38,89,共7页Spatial Structures

基　　金：浙江树人学院引进人才科研启动项目(2022R051);浙江树人学院企业项目(2023KJ175)。

摘　　要：轮辐式索桁架广泛应用于大型体育场馆,而斜交式索桁架的工程应用则很少.相比轮辐式索桁架,斜交式索桁架的构形较为复杂.本文研究了有内环型和无内环型(鸟巢型)两种斜交式索桁架的构形方法.推导了两种斜交式索桁架构形的圆形和椭圆形平面布置解析公式,以及球面、椭球面和双曲抛物面的空间曲面解析公式.采用自编程序对两种斜交式索桁架的构形方法和解析公式进行验证,并给出了两种斜交式索桁架的圆形球面和椭圆双曲抛物面空间模型算例.结果表明:两种斜交式索桁架的构形方法和解析公式是正确的,斜交式索桁架仅需少数参数即可生成空间模型.Spoke cable trusses are widely used in large stadiums,whereas diagonal cable trusses are rarely used in engineering applications.The configuration of the diagonal cable truss is more complicated than that of the spoke cable truss.The configuration methods of two types of diagonal cable trusses with an inner ring and without an inner ring(bird nest type)were studied.Analytical formulas for the circular and elliptical plan layouts,as well as for spherical,ellipsoid,and hyperbolic parabolic surfaces,of two diagonal cable truss configurations were derived.The configuration methods and analytical formulas for the two diagonal cable trusses were verified using self-programming.Space models of the circular sphere and elliptic hyperbolic paraboloid of two diagonal cable trusses were presented.The results indicate that the configuration methods and analytical formulas for the two types of diagonal cable trusses are accurate.Space models of diagonal cable trusses can be obtained by using only a few parameters.

关 键 词：斜交式索桁架 构形方法 解析法 内环 空间模型 

分 类 号：TU394[建筑科学—结构工程]