岸桥前大梁副梁腹板裂纹成因分析及改进方案

Analysis on Cause of Crack on Web of Assistant Beam on Front Boom of Quayside Container Gantry Crane and Its Solution

主要讨论岸桥前大梁副梁四腹板出现纵向裂纹的原因,并根据前大梁相关附属构件的受力特性提出改进方案,实践证明此处刚性连接改为铰接是可靠的。

This paper focuses on the discussion on the cause of vertical cracks appeared on the four web plates in assistant beam on front boom of the quayside container gantry crane, and puts forward an improved solution according to the load properties on the attached parts belong to the front boom. The actual running shows that the improvement from a rigid connection into a pin joint is reliable.