张弦空间结构的构成形式与空间工作机理  

Composition and spatial working mechanism of spatial beam string structure

作　　者：孔丹丹[1] 丁洁民[2] 何志军[2] 

机构地区：[1]河北工业大学土木工程学院,天津300132 [2]同济大学建筑设计研究院,上海200092

出　　处：《空间结构》2009年第2期9-15,共7页Spatial Structures

摘　　要：从张弦结构的工作机理出发,介绍了具有代表性的安徽大学体育馆张弦梁式空间网壳结构、北京大学体育馆张弦辐射桁架壳体结构和泉州市体育馆张弦平行桁架壳体结构的拉索撑杆体系在既定的刚性结构下的布置形式.在对三个体育馆屋盖结构进行静力参数分析的基础上,总结了张弦结构的空间工作机理和张弦空间结构的体系特征.分析表明,根据张弦结构的工作机理可以将相同的刚性结构与不同布置形式的索杆体系相结合构造出结构性能存在差异的张弦空间结构;整体张弦网壳具有优于局部张弦网壳的结构性能;降低曲面刚性结构产生的强大支座推力,并使结构具有足够刚度的有效途径是将刚性结构与索杆体系相结合构成自平衡的预应力张弦结构.From the working mechanism of beam string structure, the representative compositions of cablestrut-supported shell structure of Anhui University Gymnasium, cable-strut-supported radiating planar truss structure of Beijing University Gymnasium and spatial beam string structure of Quanzhou Gymnasium are introduced. Based on the analysis of static properties of the gymnasiums, spatial working mechanism of beam string structures is summarized and the properties of beam string structural system are analyzed. The result shows that based on the working mechanism of beam string structure, different kinds of disposal of cable-strut structure can be adopted, whole cable-strut-supported shell structure is much better than partial structure. Combining the rigid structure and cable-strut structure is a better way to minimize thrust force of support and maintain stiffness of the whole structure.

关 键 词：张弦空间结构 工作机理 索杆体系 

分 类 号：TU393.3[建筑科学—结构工程]