Research On Reinforcement Technique Of Rigid Frame Arch Bridge

Along with our country road volume of traffic Increases day by day as well as bridge own aging and breakage also lead to various diseas of the bridge structure to occur frequently, bearing capacity universal insufficient, constituted the traffic safety hidden danger. Therefore, Experiment examines and Reinforcement design research of rigid frame arched bridge is very essential.This article takes Guangdong Province Qingyuan Beijiang River bridge as the research object, through carring on the comprehensive and careful experiment examina- tion to this bridge, summarized common plant disease question of the rigid frame arched bridge systematically as well as has carried on the analysis to its origin; Used MIDAS2006 and bridge doctor 3.0 to establish finite element model to check the upper structure bearing capacity on ZhongChengShi arch bridge and frame arch of qingyuan beijiang River bridge and was checked and clarifying its weak position; On the basis of bove analysis and disease inspection result, target-oriented proposes reinforcement design proposal and the construction craft of this bridge; Finally, through uses the midas establishment space finite element model to carry on the statical analysis and to use the pulsation experiment, the race car experiment to carry on the mechanical analysis separately after reinforcing the Qingyuan Beijiang River bridge to carry on the performance evaluation, the load test result indicated that its reinforcement effect is obvious.