摘要
杭州南站主站房为方管桁架结构,整个结构上跨8条铁路营业线,根据屋盖钢桁架规模及有限的施工场地条件,屋盖钢桁架安装采用"结构分单元滑移"技术。将屋盖钢桁架划分为9个滑移单元,每个滑移单元在拼装平台分段拼装后依次进行滑移施工,成功地解决了上跨运营线路、大跨度、大悬挑、起吊重量大的屋盖桁架安装难题。并利用有限元软件对整个滑移过程进行模拟分析研究,对屋盖钢桁架的受力和变形进行了全过程监控和验算,结果表明:整个滑移过程中屋盖钢桁架的受力和变形均满足设计和相关规范要求。
Square steel truss structure was adopted in Hangzhou Railway Southern Station,it acrossed eight existing railway lines.According to the scale of steel truss and the construction condition of the project,the sliding technique was adopted in the construction of the steel roof.The steel roof was divided into nine basic elements,in which the method of direct assembling and erecting of each slip element on the floating platform,and turned to the sliding construction.The problems of the across existing railway lines,long-span,large cantilever,great weight,were successfully solved.And the state of steel truss centering and deformation during sliding was analyzed by the finite element software MIDAS.The results showed that its stress and deformation could meet design requirements and standard requirements during sliding process.
出处
《钢结构》
北大核心
2017年第10期114-119,共6页
Steel Construction
关键词
上跨运营铁路
大跨度
屋盖钢桁架
安装
同步滑移
滑移过程验算
施工技术
across existing railway lines
long-span
steel truss roof
installation
synchronous sliding
calculation and analysis of sliding process
construction technology
作者简介
赫英爽，女,1993年出生，硕士研究生,Email：cxlzyz@sina．com
