Based On The Proof Load Method Of The Reliablity Analysis Of Existing Concrete Beam Bridge

Beam bridges are the most commonly used in our country. The resistance of bridges to the increasing deterioration are reducing along with the time. The reliability in the portion of the worn bridge were reducing faster, this results in the increasing of heavy load vehicle. It is not only necessary to calculate the reliability of bridge structure scientifically and feasibly, but also to forecast Service Life. The accuracy of results was limited arises from the effecting of several factors, and the analysis to the resistance is frequently presented by indirect ways.In this paper, based on the theoretical investigation of the past, the mainly researched are as follows:1.Summarize the distribution function and its eigenvalue of load effects, which from a motor during its arbitrary usage period and people. Analyze the attenuation function and its eigenvalue of influences, which were presented in resistance.2.Simulate the loading of the actual bridge by using FEM software---midas, according to the failure probability and reliability theory, calculate reliability for Voided Slab Beam Bridge.3.The calculation is computed on the basis of verifying the loads and determining the data of reliability, then analyze the calculation.4. Studies are made to estimate and calculate the amount of the substance and the standard in verifying the loads.5.Forecast the service life of bridge structure individually, according to the time-dependent reliability and the minimum criteria of reliability...