Analysis Of Mechanical Response And Application Research Of Corrugated Steel Board Culvert Under Earthquake Action

Due to the poor tensile properties of made of reinforced concrete culvert is prone to crack,which can seriously affect the normal use of the culvert.Our country is in the region of high earthquake,and the structure will produce violent shaking.According to the investigation,it is found that the reinforced concrete culvert will be damaged due to the earthquake damage,such as cracks and collapse,and the number of them is very amazing.The corrugated steel pipe culvert has simple structure and good tensile and compressive properties.This paper analyzes the mechanical and displacement responses of this structure in weight?earthquake ?automobile action by means of numerical simulation,using response spectrum method and time history analysis method.Some conclusions were drawn,the main results are as follows:1?When the earthquake occurred,there are many kinds of earthquake damage in the culvert of the reinforced concrete structure,resulting in a large number of culvert damage,the greater the loss.By using the finite element method with the help of software ANSYS,the analytical model of response spectrum and time history analysis method is established.2?With theearthquake action changes,the dynamic response of different parts of the corrugated steel board culvert appears.When the earthquake intensity increases,the structure of the force and displacement are the overall increase in the change.The internal force of the corrugated steel board culvert caused by gravity action is less than the internal force caused by earthquake action.3?When the wall thickness is the same,the different parts are affected by the earthquake action,but the internal force and displacement generated by gravity action are smaller than the internal force and displacement caused by the earthquake action.4?The mechanical response of the corrugated steel board culvert is influenced by its diameter changes obviously when the bellows subjected to earthquake action and gravity action,different parts of the internal force with the increase of diameter showed a different response,but the displacement was increased.When the structure is subjected to earthquake action and gravity action,the larger the pipe diameter is,the closer the maximum internal force of the structure is caused by the two kinds of action.5?The existence of automobile action has little effect on the dynamic response of steel corrugated steel board culvert.6?The corrugated steel board culvert in gravity,gravity and horizontal earthquake,gravity and horizontal earthquake plus automobile action under the action of the horizontal displacement is determined by horizontal earthquake action,and the vertical displacement is controlled by gravity action.7?By comparison,these two methods to calculate the stress and displacement of the results in addition to individual points at some differences,most of the results are closer;the two methods reveal the law is the same.8?Combined with some seismic code,the underground structure of the seismic measures and the analysis of this article,some suggestions are put forward for the seismic measures of the corrugated steel board culvert.