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车辐式结构是一种新颖的索-拱结构体系,其稳定性能比单纯的拱结构有很大改善.车辐式张拉结构造型轻盈通透,常作为大跨度体育场建筑的屋盖结构形式.对于由索、拱、飞柱组成的屋盖结构体系而言,整体张拉成型的方法优于单点张拉的施工方法,张拉方案的选择以及张拉过程中力与形的控制是施工张拉过程的核心内容.本文以宝安体育场现场施工实际出发,通过对张拉方案探讨与分析,研究车辐式张拉结构整体张拉过程的方案与关键技术.文中讨论了几种可能的施工方法,并对每种方法的优缺点进行了比较,同时对选定方法的关键施工步骤进行了研究.
Car spoke structure is a novel cable-arch structure system, its stability than the simple arch structure has greatly improved.Vehicle structure of the beam structure of light and transparent, often as a long-span stadium building roof structure For the roof system consisting of cables, arches and flying columns, the method of integral tensioning is superior to the single point tensioning method. The selection of tensioning schemes and the control of force and shape during the tensioning are Construction of the core content of the process of tension.This article starting with the actual construction of Baoan Stadium site, through the discussion and analysis of the tension program to study the vehicle-tensioned structure of the overall tensioning program and key technologies.This paper discusses several possible Construction methods, the advantages and disadvantages of each method were compared, and the key construction steps of the selected method were studied.