The Durability Of The Partial Pre-pressed Box Beam Imposed By The Static And Fatigue Loads

Based on the different loaded research of structural engineering subject which is one of the two structural durability research, mainly discuss about the durability of the partial pre-pressed box beam imposed by loads in which the static load can be divided into two parts, evenly distributed load and central loading, fatigue load imposes on the reinforcing bar, pre-pressed steel wire rope and concrete. Then analyze the stress and the crack when the materials and box-beam is loaded by varietical loads. In the end, sum up the service life prediction mathematic models of box beam by varietical loads.