Probability Analysis of Crane Load and Load Combination Actions

Figure 1

Schematic diagram of load arrangements of the vertical load and horizontal force, where ① is the crab; ② is the crane bridge; ③ is the crane beam. is the maximum load per wheel of the loaded crane. is the accompanying load per wheel of the loaded crane. is the sum of the maximum loads per runway of the loaded crane. is the sum of the accompanying maximum loads per runway of the loaded crane. is the nominal hoist load. is the minimum distance between the hoist point and the crane wheel. is the span of the crane bridge. is the wheel distance of the crane. is the width of the crane. is the self-weight of the crab. is the self-weight of the crane. is the hoist load. is the transverse horizontal wheel forces. is the longitudinal horizontal wheel forces.

(a) Load arrangement of the loaded crane use to obtain the maximum vertical load on the runway beam

(b) Load arrangement of longitudinal and transverse horizontal wheel forces caused by acceleration and deceleration