摘要
某项目连廊钢结构跨度达到40m,宽度达到36.4m,高度达到28.65m,由5榀南北向重型桁架及桁架间水平楼面梁组成,现场采用"胎架支承,高空原位拼装法"进行安装。对临时支承体系进行了设计,并利用有限元分析与设计软件MIDAS和ABAQUS验算了施工工况下临时支承体系的强度、变形和稳定性,验算了临时支承体系下方混凝土结构的变形。此外,通过数值模拟分析,确定了连廊竖向变形的监测位置,保证了连廊钢结构安装和卸载的精度和安全,取得了良好效果。
The span of this corridor steel structure is 40 meters, the width is 36.4 meters, and the height is 28.65 meters. The corridor steel structure consists of 5 north-south horizontal truss and truss horizontal floor beams. The installation of the ＂frame support and high altitude assembly method＂ is carried out. The temporary support system is designed in this paper. The finite element analysis and design software MIDAS and ABAQUS are used to check the strength, deformation,and stability of the temporary support system under construction conditions, and to check the deformation of concrete structure below the temporary support system. In addition, numerical simulation analysis is conducted to determine the position of vertical deformation, ensure the accuracy and safety of installation and unloading process, and achieve good results.
作者
王晋
马天龙
李玉强
张海波
WANG Jin;MA Tianlong;LI Yuqiang;ZHANG Haibo(China Construction Steel Structure Company, Jingjiang 214532, China)
出处
《建筑钢结构进展》
CSCD
北大核心
2018年第3期97-103,共7页
Progress in Steel Building Structures
关键词
大跨度连廊钢结构
临时支承体系
数值模拟
稳定性验算
large-span corridor steel structure
temporary support system
numerical simulation
stability checking
