2015年4月下 施工技术 第44卷第8期 CONSTRUCTION TECHNOLOGY 71 D0I:10.7672/sgjs2015080071 大跨度钢结构局部抽空提升施工力学分析 邹航，徐德号，周国军，娄峰，苏英强 (浙江精工钢结构集团有限公司，浙江绍兴312030) [摘要]合肥南站钢结构工程，屋盖为双向正交正放桁架结构体系，采用分区拼装、分区液压同步提升的安装方案. 提升架基于原有钢骨混凝土柱柱顶设置，屋盖桁架在提升过程中被局部抽空.详细介绍本工程提升施工的计算机 模拟分析，并结合现场实测数据，对比研究了此类大跨度局部抽空结构在提升过程中的受力性能.该提升工序顺 利完成并证明了本文施工分析的合理性. [关键词]钢结构；桁架；提升；局部抽空；施工力学；数值模拟 [中图分类号]TU391 [文献标识码]A [文章编号]1002-8498(2015)08-0071-05 Construction Mechanics Analysis on Lifting of Large-span Steel Structure with Local Pumping out Zou Hang Xu Dehao Zhou Guojun Lou Feng Su Yingqiang Zhejiang Jinggong Steel Building Group)Co.Ltd.Shaoxing Zhejiang 312030 China) Abstract:The steel roof of Hefei South Railway Station applies a bidirectional orthogonal spatial truss structure system which uses segmented assembling and segmented hydraulic synchronous lifting during installation.Lifting frame is set on the top of existing steel reinforced concrete columns and roof truss is partially pumped out in the lifting process.The simulation was introduced in detail and according to the actual data on site it gave parative study on mechanical behaviors of such large-span partial pumping out structures.The success of lifting process in this project proves the practicality of the installation analysis in this thesis. Key words:steel structures;trusses;lifting;local pumping out;construction mechanics;simulation 0引言 框架结构上部双向受力钢桁架屋盖结构. 随着大跨度结构的增多，传统的钢结构高空原 钢屋盖采用双向正交正放桁架结构，桁架结构 位散装的施工技术在一些结构中并不是非常适用，平面投影为矩形，最高点高度37.2m 最低点 会产生工人工作条件危险、安装效率低等问...
大跨度钢结构局部抽空提升施工力学分析.pdf
