温度变化对于门式刚架的应力变形影响分析

Analysis of stress and deformation about portal frame under the change of temperature

为了研究外界温度变化对于门式刚架的应力变形的影响,以某门式刚架为研究对象,通过大型有限元结构分析软件ANSYS建立静力分析模型,对于有限元模型施加温度荷载以及约束进行计算,结果显示,在外界温度降低的过程中,结构的应力变形有很大的改变,可以为门式刚架的设计提供相关的参考依据。

In order to study the effect of stress on the changes of external temperature deformation of the portal frame,a portal frame as the re-search object,through large-scale finite element analysis software ANSYS to establish the model for static analysis,the finite element model is ap-plied to calculate the temperature load and constraint. The calculation results show,in the process of lowering the temperature of the outside world,the structure deformation and stress change a lot. The conclusions can provide reference for the design of portal frames.