Fundamental Experimental Analysis of Friction Characteristics between Pad of Pressing Type Braking Equipment of Gantry Cranes and Rail under Dry Condition

Gantry cranes for container handling installed on quays can cause unexpected runaways due to strong wind. In this paper, we conducted a fundamental experimental analysis to clarify friction characteristics between pads of rail brake, which is one of anchoring devices of crane, and rails under dry condition. We measured friction forces between pads and rails under analysis conditions with considering pressing condition of actual cranes' pads. Dynamic friction coefficients between the pads and the rails showed decreasing trends when sliding distance increased.