Assembly Type Hollow Plate Girder Bridge Flooring Longitudinal Crack Origin Analysis And Preventing And Controlling Measure Research

This article briefed the assembly type hollow plate girder bridge flooring service condition and the research situation at present, and explained the assembly type hollow plate girder bridge articulation seam place each kind of connection form and its the stress, Then has analyzed the reason from the different aspect which the flooring longitudinal crack produces and proposed the preventing and controlling measure.Nowadays, having completed the bridge of the highway in Guangxi, the majority span of the big, middle, small bridge is 16-30m.These bridges used the assembly type prestressed concrete spatial core simple support beam bridge. These hollow plate girder bridges, although main body structure are good, but the bridge floor appears many disease, and most prominent model disease is the longitudinal crack between the hollow plate hinge seams. The individual symptom serious bridge, the longitudinal crack has passed through the girder hinge seam and the flooring. In order to clarify the assembly type hollow plate girder bridge flooring longitudinal crack origin, firstly, embarking from the spatial core girder joint form has carried on the stress analysis; Then separately...