Static Reliability Analysis of Prestressed Concrete V - Shaped Continuous Beam Bridge

摘要

In this paper, the reliability theory of engineering structure based on a city landscape bridge (multi span prestressed concrete V-shaped pier continuous beam bridge) as engineering background, key section of main girder and V-shaped pier of continuous girder bridge of prestressed concrete V-shaped pier by using the first two order moment method to evaluate the bridge girder and the shape of V-pier bridge reliability index, reflect design intent; and the influence of various factors on the reliability index of sensitivity analysis in the design reference period of resistance of this kind of bridge reliability greatly. The influence of the variation of the dead load on the reliability of the main beam is negligible, but it has great influence on the reliability of the V-shaped pier. The effect of live load effect on the reliability of the main beam is very significant, and the effect on the reliability of V- shaped pier is small. Therefore, this study has certain engineering value for the design, operation, maintenance and monitoring of the multi span prestressed concrete V-shaped pier continuous beam.