COMPARISON AND ANALYSIS OF CABLE AND ROD IN THE LONG-SPAN SPACE STRUCTURE
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摘要: 预应力拉索结构与预应力拉杆结构作为大跨度结构中两种重要的结构形式,在目前的大跨度结构工程中得到了广泛的应用。在实际工程中如何选取合理的结构形式成为一个重要的课题,如果结构形式选取不当,将可能引起施工过程中的上部结构应力与变形过大,甚至引发重大的工程事故。本研究结合某国际会展中心登录大厅的项目,在不同的张拉方案及不同的结构形式下(主要指拉索结构和拉杆结构)对拱脚支座的位移进行计算分析,比较并选取最优的张拉方案及结构形式。Abstract: At present,pre-stressed cable structure and pre-stressed rod structure are two important structures which have been widely used in long-span structures.So it is an important issue to select right form of structure in actual project,if the wrong structure is selected,it may lead to large stress and deformation in the upper part of structure.More seriously,the irrational selection will cause major accident during the process of construction.Integrated with an international convention and exhibition centre logging hall project,it is calculated the displacement of foot arch in the different tension program and different structure forms(mainly refers to the cable structure and the rod structure),then the best tension program and structure form are compared and selected.
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Key words:
- cable /
- rod /
- tensioning construction /
- arch foot /
- displacement
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