Research on the method of antiseismic reliability evaluation for girder bridge in service

The paper, on the basis of the girder bridge in service as research object, puts forward the assessment methods of anti-seismic reliability degree in service structure. Firstly, the aging and damage factors of materials having happened in girder bridge in service is analyzed. Secondly, considering when the subsequent use of the bridge structure in service within the probability that can suffer seismic affections in the future will be reduced. And finally, the anti-seismic reliable degree will be on analysis by the means of adopting probability with anti-seismic methods of structure pushover. By the means described above, anti-seismic reliability degree of a reinforced concrete girder bridge is analyzed, and then, the calculation of precision is examined by adopting Monte Carlo Method.