The Prestressed Box Girder Bridge Load Test Analysis And The Structure Performance Research

In recent years,Chinese construction is developing very fast,and between the city's transportation is developed.Urban,inter-city roads on a variety of large-span bridges,lots of elevated bridge is build in city inner circle,a variety of prestressed box girder bridge is used in the bridge construction.After the completion of the bridge construction,check whether the bridge operation ability meets the design requirements and check whether the structural performance of the bridge meets the requirements for use.Load test provides the most direct reference for bridge structure performance.After the completion of the bridge construction load test is to identify the bridge carrying capacity of one of the most direct and most effective method.The load test includes static load test and dynamic load test.In this paper,a prestressed concrete box girder for the study of the relevant load tests and bridge structural performance analysis:1.First of all,the characteristics,contents,precautions and operation of bridge load test are expounded in detail.2.Then,taking a cast-in-place box girder bridge on He-yue Road as an example,the finite element analysis is carried out by using software such as Dr.Bridges.The theoretical analysis of the bridge design is carried out,and the bridge control section is analyzed with the load test.3.Carry on the load test to the bridge of the load,and analyze the data,explain and analyze the performance of the bridge structure,verify the structural characteristics of the prestressed concrete box beam.