基于ANSYS某钢桥损伤原因分析

Analysis on damage of steel bridge on basis of ANSYS

应用大型通用有限元软件ANSYS,对某大桥采用空间板单元建模,计算了该桥在开裂前、开裂后各种荷载工况作用下主桁杆件的内力,重点研究开裂纵梁的受力情况,根据计算结果详细分析了该桥纵梁裂纹产生的原因。

Using space plate element, the model of the bridge is established on the basis of ANSYS. And the force of the member bar is calculated. Taking the stress of the cracked longitudinal girder as a focal point, the reasons of the crack of the longitudinal girder of steel bridge are analyzed according to the result.