2011年9月下 施工技术 第40卷第349期 CONSTRUCTION TECHNOLOGY 33 深圳大运中心主体育场钢结构支撑胎架同步卸载技术 张强1，于滨，朱莹1，陈茜1，金弘2 (1.中国建筑科学研究院建研（北京）结构工程有限公司，北京100013； 2.鞍钢股份有限公司能源动力总厂，辽宁鞍山114012) [摘要]深圳大运中心主体育场屋盖为单层折面空间网格结构，采用临时支撑、高空拼接的方法进行施工，在拼装 施工后对胎架临时支撑的卸载成为施工中的关键环节.首先分析了各临时胎架的支撑反力与卸载后的竖向位移， 提出合理的同步卸载施工方案与施工步骤.以各卸载点最大顶升力为依据，对施工设备进行科学选取与现场布 局.介绍了整套计算机同步控制系统的组成、工作原理以及控制功能.实践结果充分体现了施工方案选取的科学 性，以及同步控制系统在大型钢结构施工中的优越性和经济性. [关键词]体育场；钢结构；胎架；卸载；施工技术 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2011)18-0033-04 Synchronous Unloading of Support Jigs for Steel Structure of Main Stadium in Shenzhen Universiade Sports Center Zhang Qiang' Yu Bin' Zhu Ying' Chen Qian' Jin Hong? (1.China Academy of Building Research CABR Tech Bejing)Structure Engineering Co.Ltd.Beijing 100013 China; 2.An'gang Steel Company Limited General Energy and Power Plant Anshan Liaoning 114012 China) Abstract:The roof of main stadium in Shenzhen Universiade Sports Center is a single-layer folded-surface spatial grid system.Structural members were assembled on temporary support at high altitude.Unloading of the temporary support jigs after steel beams installation bees the important step.The support reaction of the temporary support and vertical displacement after it is unloading are analyzed.The feasibility of operations and construction steps of synchronous unloading are also considered.Based on the maximum jacking force of each unloading point the selection and field layout of construction equipment are done scientifically.The positions principles...
深圳大运中心主体育场钢结构支撑胎架同步卸载技术.pdf
