基于钢结构大跨度连廊起拱问题的解决方案

Solution to Arching Problem of Large-span Corridor Based on Steel Structure

针对大跨度钢结构工程施工完成后的跨中变形问题,对最合理的起拱方式进行了比选。结合具体工程,采用Midas Gen建立结构的实体模型进行模拟,施加3种荷载组合,获取相关节点位移数值,确定该起拱方式的各节点起拱参数,最终通过与钢结构实际提升过程中的挠度监测数据进行比较,得出与实际最接近的数据模拟时的荷载组合参数,可为今后类似工程提供参考。

Aiming at the problem of mid-span deformation after the construction of large-span steel structure,the most reasonable arching form is compared and selected.Combined with a specific project,Midas Gen is used to establish the solid model of the structure for simulation.Three load combinations are applied to obtain the displacement values of relevant joints,and the arching parameters of each joint of the arching form are determined.Finally,the load combination parameters of the closest data simulation are obtained by comparing with the deflection monitoring data in the actual lifting process of the steel structure,which can provide a reference for similar projects in the future.