Finite Element Emulation Analysis On A Continuous Rigid Frame Bridge And On The Crack Cause Of Its Box-Grirders Webs

Pre-reinforced concrete continuous rigid frame bridge is most widely used in bridge engineering, which is constructed through balanced cantilever in general. Its constructing is very complex; so, the emulation analysis of construction of bridges seems very important.With the Huluding huge Bridge as the engineering background, combining with the stress in construction surveillance and control, the stress distribution in construction of the pre-stressed continuous concrete rigid frame bridge is studied in this paper. Since the single box and single room structure of upper structure, large span, high piers, complex structure type, miscellaneous pre-stress reinforcing bar and large amount of the pre-stress reinforcing bar, three-dimensional model of solid entity and ANSYS processing of the method of entity and reinforcing bar adopted in this paper for accrue, making use of the ANSYS Parametric Design Language (APDL) .By analyzing the stress in box girder and piers of the bridge while being constructed , combining with the project of constructional control, the stress of the key section and the stress distribution of the structure are studied in time, which guarantees the safety of...