The Simulation Analysis of Corrosive Bar Failure Effect on the Performance of Grid Structure

Service environment of Space truss structure is often high corrosive,it is easy corrosive for the structural member,and significantly reduce the structural safety,even damage,so for the spatial prediction of corrosion process is very important.This paper used the finite element software ANSYS APDL command,according to the rack design code programming design a small network,make a space truss model is general representative,selected area of the grid structure service is WanNing city,Hainan province,determine the corrosion model.Then simulation research for the structure corrosion varying along the time,got some rules of corrosive bar effect on the structural stability during gradually corrosion.Some reference was provided for the grid structure design and maintenance when considering the corrosion.And the correctness of the law was verified by a selected project.