施工技术 2010年8月 44 CONSTRUCTION TECHNOLOGY 第39卷第8期 宝安体育场刚性受压环位形偏差对车辐式 张拉结构成型状态的影响研究 田广宇，郭彦林，王昆，张博浩 (清华大学土木水利学院，北京100084) [摘要]车辐式结构是由索桁架和刚性受压环组成的自平衡体系，其刚度由索系的预应力提供，常采用定尺定长设 计与施工，即拉索的索头长度不可通过螺纹调节.这种设计能够简化索头设计和制造，便于施工控制；同时也决定 了受压环的位形对于成形状态索力有关键作用.以深圳宝安体育场屋盖结构为例，首先闹述了车辐式结构受压环 位形变形预调值的概念和计算方法，其次研究了受压环位形偏差以及幕墙支承体系等附属结构对于主体结构成形 状态的影响，并介绍了计算方法. [关键词]车辐式结构；预应力；变形预调值；误差；幕墙 [中图分类号]TU323.8 [文献标识码]A [文章编号]1002-8498(2010)08-0044-04 Affection of Compressing Ring's Configuration on Initial Prestress State of Spoke Structures of Baoan Stadium Tian Guangyu Guo Yanlin Wang Kun Zhang Bohao School of Civil Engineering Tsinghua University Beijing 100084 China) Abstract:Spoke structure is a kind of self-balance structure posed by cable trusses and pressing ring and their stiffness depends on cables'prestress.Spoke structures are often designed and built with certain length and configuration which means the length of cable connectors can not be changed by threads.This will predigest the design and produce of cable connectors and be good for construction control while make it important of pressing ring's configuration to cables'internal forces of initial prestress state.Taking Baoan Stadium as an example the pre-set deformation value of pressing ring is studied and the affection of deviation of pressing ring's configuration and the accessory structure on the prestress state of primary structure is analyzed and the calculation method is introduced. Key words:spoke structures;pre-stress;pre...
宝安体育场刚性受压环位形偏差对车辐式张拉结构成型状态的影响研究.pdf
