风荷载作用下爬架架体变形性能的有限元数值模拟研究

Study on Finite Element Digital Modeling for Deformation Performance of Climbing False Work Under the Wind Load

高层爬架施工中风荷载是影响架体变形的重要因素,风荷载作用下爬架设计易满足承载力要求却难满足变形的要求。对此采用SAP2000有限元分析软件,研究不同风荷载效应组合下爬架架体的变形特性,分析得出架体变形的规律性,以此为基础探讨架体与结构拉结作用及改变导轨截面这两种方法对减小变形的实用性。所得结论对深入理解风荷载作用下的爬架架体的变形是非常有实践意义的。

The wind load is an important deformation factor of the climbing false work during the high rise building construction. The design of climbing false work is easier to satisfy the load demand but is difficult for the deformation demand. So the finite element analysis software SAP2000 was used to study the deformation performance of climbing false work under the effect of different wind load combination, and the deformation law was gained by analysis. On the basis of study, the practicability of mitigate deformations was discussed for two methods of tie together with false work and the structure, and changing the cross area of guide rail. The conclusion has practice meaning for deeply understand the deformation of climbing false work under the wind load.