The brake beam(connecting plate) is often broken, and the bolts for fixing the connecting plate are loosed due to the crane′s dynamic load when D series of crane beams are working in a steel plant.
The experiment on the correlation between coefficient of foundation and size of loading plate is performed on experimental model of planar load test in lab, which can model field situation of roadbed.
It is one of the main methods in bridge reinforcement that bonding steel plate or other fiber compound material is used to strengthen load-carrying capacity of weak member of Bridges.