Experiment And Finite Element Analysis Of The Prestressed Concrete Box-Girder Bridge With Corrugated Steel Webs

With the increase of bridge span, it is of crucial importance to the deadweight of the superstructure. The pre-stressed composite box-girder with corrugated steel webs is a new kind structure, which makes use of the material characteristics of concrete and corrugated steel webs. It can reduce the workload of bridge construction effective.In this paper, the pre-stressed composite box-girder with corrugated steel webs was studied with large-scale finite element analysis software ANSYS. Cross-analysis of the dynamic properties of the bridge. Structural Dynamics, based on analysis of the structure and their counterparts from the natural frequency of vibration. In view of the box-girder structure with corrugated steel webs characteristics of the dynamic characteristics of such bridges, study the corrugated steel webs concrete box-girder webs compared with the vibration on the merits, In vitro corrugated steel webs of prestressed concrete box-girder and whole bridge on the natural frequency of the impact. The shear lag effect in the composite box girder with corrugated steel web was also studied with 3-D finite element analysis. Box-girder and corrugated steel webs contrast concrete box girder webs of shear lag effect, and box-girder bridge with corrugated steel webs in the bearing shear-lag effect, which can provide the basis of theoretical analysis and technical support for application of the combination of corrugated steel box girder webs in our country.Corrugated steel box girder webs of the inherent vibration analysis for the seismic study based on the premise that Earthquake Prevention and the bridge such as the earthquake reference. Using time-history analysis of the bridge span structure analysis. EL-Eentro bridge span structure in terms of wave-term response corrugated steel box-girder bridge to the web to provide a theoretical basis for seismic design.