摘要
多层大跨异形钢结构在整个施工过程中,钢结构吊装、卸载的安全性以及安装质量如何得到保证,是建设者必须重视的问题。结合江西某多层大跨度异形钢结构连廊工程,采用数值模拟的方法,找出施工过程中最不利位置,并增加临时支撑架,保证钢梁拼装的同时防止上部构件安装时对下层钢梁的影响;同时施工现场采用了四大技术,即混凝土结构楼板加固支撑吊车施工技术、临时支撑架搭设施工技术、路基箱安装施工技术、钢结构吊装及卸载施工技术,确保了钢结构在施工过程中的质量、安全,其成功经验可为类似工程提供参考。
In the whole construction process of multi-storey large-span speciar-shaped steel structureshow to ensure the safety of steel structure hoisting and unloading and installation quality is a problem that all builders must pay attention to.C.ombined with a multi-storey large-span special-shaped steel structure corridor project in Jiangxi Province,the numerical simulation method is adopted to find out the most unfavorable position in the construction process,and the temporary support frame is increased to ensure the steel beam assembly and prevent the influence of the upper component installation on the lower steel beam.At the same time,four major technologies are adopted in the construction site,namely,the construction technology of concrete structure floor reinforcement support crane,the construction technology of temporary support frame erection,the construction technology of subgrade box installation,the construction technology of steel structure hoisting and unloading,which ensures the quality and safety of steel structure in the construction process.The successful experience can provide reference for similar projects.
作者
郭磊
GUO Lei(China Railway Construction Group Zhongnan Construction Co.Ltd.,Wuhan Hubei 430000,China)
出处
《铁道建筑技术》
2021年第5期162-164,174,共4页
Railway Construction Technology
基金
中铁建设集团有限公司科技研发计划项目(LX17-27)。
关键词
多层大跨
异形钢结构
数值模拟
支撑架
multi-storey and large span
special-shaped steel structure
numerical simulation
support frame
