Deformation Simulation Of Reinforced Concrete Column Under High Temperature Environment Based On LS-DYNA

The fire can cause serious damage to people's life and property,social production resources,but also caused great damage to the building structure itself structure,and through the waste of building after fire will produce great pollution to the environment.Reinforced concrete structures are widely used in various structures because of their reasonable structural advantages.In recent years,the trend of building fire is increasing year by year due to the large scale,high level and compound use of buildings.At present,the research on fire resistance of reinforced concrete members is limited at home and abroad.Therefore,it is of important engineering significance to study the fire resistance performance of reinforced concrete structures after fire.In this paper,finite element software is used to analyze and study this problem.This article conducts the research on the mechanical behavior of reinforced concrete columns subjected to axial compression at different node temperature by finite element analysis software ANSYS/LS-DYNA,and analyzed the damage form of axial compression reinforced concrete,founding that in normal environment,the operation of the high temperature reinforced concrete member shows the temperature effect.By the same axial load,the reinforced concrete member strain of high temperature has a great growth.