钢骨混凝土桁架转换层施工高大模板支撑系统.pdf

30施工技术CONSTUCTION TECHNOLOGY2016 年 11 月上第 45 卷第 21 期DOI:10.7672/sgjs2016210030钢骨混凝土桁架转换层施工高大模板支撑系统设计*邓年春1，陈小涛2，邓宇2，鲁建2(1 广西大学土木建筑工程学院，广西南宁530004;2 广西科技大学土木建筑工程学院，广西柳州545006)摘要钢骨混凝土桁架转换层是高层结构转换层中的一种重要形式，其施工过程中常需要搭建高大模板支撑系统。支撑系统的设计直接关系到建筑施工的质量、安全与效益。依托柳东新区企业总部大楼项目的施工，对其转换桁架高大模板支撑系统进行了研究与设计。本工程采用格构柱支撑体系，先对支撑体系进行总体布局，然后简化支点对转换桁架结构进行荷载组合下的计算，得出格构柱顶部反力，以此对格构柱进行选型，再对单个及整体格构柱的受力与稳定性进行验算。同时验算了梁底模板支撑系统的安全性与柱基承载力，并对千斤顶同步卸载系统进行了设计。研究结果表明该支撑系统安全可靠，能满足该工程的多功能需求。关键词钢骨混凝土;桁架;转换层;支撑系统;脚手架;卸载;设计 中图分类号TU755.2;TU731.2 文献标识码A 文章编号1002-8498(2016)21-0030-05The Design of High Formwork Supporting System for Steel einforcedConcrete Truss Transfer Layer ConstructionDeng Nianchun1，Chen Xiaotao2，Deng Yu2，Lu Jian2(1 College of Civil Engineering and Architecture，Guangxi University，Nanning，Guangxi530004，China;2 College of Civil Engineering and Architecture，Guangxi University of Science and Technology，Liuzhou，Guangxi545006，China)Abstract:Steel reinforced concrete truss transfer layer is one of important forms of the conversion layer inhigh-rise structure，and high formwork supporting system is often needed in the construction processAlso，its supporting scheme is directly related the construction of the quality，safety and efficiencyBased on the construction of new district corporate headquarters building of east of Liuzhou，the researchand design of the high formwork support system of the truss are carried out with lattice column Firstly，the overall arrangement of the support system is determined Secondly，the top counter force of the latticecolumn is obtained by the transfer truss model solved with load combination after simplified support，andthen it determines the lattice column selection After this，the stress and stability of single and wholecolumns are checkedFurthermore，the safety of beam bottom scaffold supporting system and thefoundation bearing capacity are checked and designed so as to the jack unloading system The researchresults show that the supporting system is safe and reliable，and meets