斜拉空间网格结构拉索张拉过程分析  

Cable-tension Analysis of Cable-Stayed Spatial Reticulated Structure

作　　者：隋晓 

机构地区：[1]广州容柏生建筑结构设计事务所,广州510170

出　　处：《广东土木与建筑》2011年第8期6-9,共4页Guangdong Architecture Civil Engineering

摘　　要：预应力对斜拉空间网格结构受力体系的形成至关重要,如何通过分批张拉准确地建立预应力是施工中面临的主要问题,文中结合工程实例,从拉索的切线刚度和索长计算两个角度入手,分析了拉索的垂度对斜拉空间网格结构预应力张拉过程的影响。针对斜拉空间网格结构的特点,综合考虑各种因素的影响,提出了拉索张拉的控制原则和要求,并对施工方案进行了优化。Prcstrcssing force is the key factor for the supporting system of cable-stayed spatial reticulated structure. How to establish it is the main problem to solve in＇the process of construction. In this paper, combining with a real example,the effect of cable sag on ten- sion process was analysed from two aspects of extensional rigidity and cable length calculation. According to the characteristics of ca- ble-stayed spatial reticulated structure,the corresponding principle and requirement of cable-tension was given considering effects of different factors. The tension scheme was optimized by comparing three different ways.

关 键 词：斜拉空间网格结构 分批张拉 垂度 

分 类 号：TU356.01[建筑科学—结构工程]