Bridge Load Testing Structural Verification Ratio Influence Analysis

With highway traffic development, technique condition of existing bridges hasreceived more and more attention. Load testing of the main purpose is not only testingthe bearing capacity, but the evaluation of bridge technical condition, record bridgebasic characteristics, as a bridge carrying capacity evaluation and decision ofmaintenance, repair and reinforcement in the future provide a scientific basis andsupport.The verification ratio is one of the most important criteria in the load testing toidentification the bridge, the calculation accuracy of verification ratio directly determinesthe bridge of bearing capacity of reliability. In this research, through engineering exampleand the numerical analysis method to analyses the various factors influencing theverification ratio. Presence of bridge deck pavement is analyzed emphatically on theverification ratio, considering the influence of pavement function on the basis of completelydifferent influence on verification ratio and span length of surfacing layer thickness in effecton the verification ratio, considering the influence of pavement layer completely functionon the basis of the presence of these barriers on the influence of the verification ratio andgiven in theoretical calculation of guardrails along the bridge transverse load co-bearingreasonable distribution characteristics. Finally it is concluded that the several kinds ofinfluence factors on the verification ratio. For plate rubber bearing rotational restraintfactors and the influence of load transverse distribution factors of the verification ratio isalso made a preliminary analysis.The research results can provide a theoretical basis for beam bridge load testingthe normal range of the verification ratio, and it could also be provide evaluationreference to other types of bridge load testing, and has a promoting function for thedevelopment of the bridge load testing.