Mechanical Properties Of Composite Box Girder Bridge With Corrugated Steel Webs At Different Stages Of Analysis

Corrugated steel web PC box girder bridge is a novel combination of steel-concrete composite bridge, its most important feature is the use of corrugated steel replaced the traditional shape of a concrete bridge webs. This bridge has the structure, light weight, low cost and short construction period, prestressed high efficiency, wide application, attractive appearance, good seismic performance and durability and many other advantages, is a new type of bridge structure in line with the concept of sustainable.The study used finite element software Midas Civil, through the structural modeling and calculation process has been completed and a certain combination of corrugated steel web PC box girder bridge, to analyze its construction phase(phase bridge), cross-sectional dimensions of research and dynamic analysis(bridge phase), the specific contents are as follows:(1) Cantilever box girder bridge in the largest state, Cross Close stage, the stage and collapsed across the shrinkage and creep deflection, internal forces and stress becomes stage four construction stages analysis to identify the most unfavorable construction stages, construction and test its most unfavorable deflection, internal forces and stress stages can meet the requirements of the construction phase of construction.(2) For box girder analyzed in the deflection, stress and internal forces of different angles to find the optimal design of the inclination angle.(3) Girder bridge dynamic characteristics of this kind of analysis, and study the impact the crossbeam its natural characteristics.