施工技术 2014年6月上 122 CONSTRUCTION TECHNOLOGY 第43卷第11期 D01:10.7672/sgjs2014110122 大跨空间结构施工临时支撑卸载次序研究* 饶晓文，李鸿晶2，伍小平3 (1.广西机电职业技术学院建筑工程系，广西南宁530007；2.南京工业大学土木工程学院，江苏南京210009： 3.上海建工（集团）总公司，上海200050) [摘要]以多跨连续梁为研究对象，对多个临时支撑的卸载过程进行研究，考虑卸载的非线性和时变性，假定各种 不同的卸载次序，分析和比较不同的卸载次序对结构和临时支撑施工内力的影响，探讨其中的规律并提出了一些 相对合理、可供参考的卸载次序和原则.最后，以国内某大跨网架的外部围护结构作为案例分析对象，应用前面分 析得出的结论，确定了结构卸载的大致方案和原则. [关键词]钢结构；大跨空间结构：临时支撑；卸载；施工技术 [中图分类号]TU399;TU393.3 [文献标识码]A [文章编号]1002-8498(2014)11-0122-05 Study on Unloading Sequence of the Temporary Support in Construction of Long-span Spatial Structures Rao Xiaowen' Li Hongjing㎡，Wu Xiaoping (1.Cizil Engineering Department Guangxi Technological College of Machinery and Electricity Nanning Guangxi 530007 China;2.College of Civil Engineering Nanjing University of Technology Nanjing Jiangsu 210009 China; 3.Shanghai Construction Group General Co.Shanghai 200050 China) Abstract:Based on multi-span continuous beam this paper studies on the unloading process of several temporary supports considers the nonlinear and time variation of unloading assumes all different load- relieving sequences analyzes the effect of different unloading sequences on construction internal force of structure and temporary support discusses on the law and puts forward some relatively reasonable unloading sequences and principles.Finally with certain long-span grid of the external retaining structure as the object of case analysis the conclusions by application of the preceding analysis determine the structu...
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