基于BIM的Midas Gen钢结构有限元分析

Finite Element Analysis of Midas Gen Steel Structure Based on BIM

目前,BIM模型参与有限元分析的实际案例相对较少,因此,急需解决通过结合BIM和有限元分析进行应用的问题。本文主要基于BIM和Midas Gen对钢结构设计安全性能进行有限元分析研究,首先,通过对本工程钢结构的材料进行构件属性定义;其次,使用BIM软件Revit将兼职建筑信息模型导入Midas Gen,根据实际工程条件定义设计参数,并说明结构的荷载定义及边界条件;再次,通过有限元软件Midas Gen分别对钢结构进行静力分析和动力分析,获取结构的应力和变形结果;最后,得出结构最大应力为192.4 MPa,最大位移数值为14.8 mm,均满足规范要求。

Currently,there are relatively few actual cases of finite element analysis involving BIM models,therefore,it is urgent to solve the problem of combining BIM and finite element analysis for application.This article mainly conducts finite element analysis and research on the safety performance of steel structure design based on BIM and Midas Gen,firstly,the material properties of the steel structure in this project are defined;Secondly,use BIM software Revit to import the part-time building information model into Midas Gen,define design parameters based on actual engineering conditions,and explain the load definition and boundary conditions of the structure;Again,static and dynamic analyses were conducted on the steel structure using the finite element software Midas Gen to obtain the stress and deformation results of the structure;Finally,the maximum stress of the structure is 192.4 MPa,and the maximum displacement value is 14.8 mm,both of which meet the requirements of the specifications.