The State of Loading of Tower Type Traveling Crane at Construction Site

Abstract

In this paper, we show the characteristics of stress of tower type traveling crane. We measured stresses, tension of the cable and tower/jib angle of moving crane at two sites ; experimental yard and construction site. The major factors that determine stresses are crane's posture, weight of loading mass and speed of rotation. The main aspect of stress spectra during crane operation is right triangle shape, which means the frequency of stress decreases log linearly as stress range increases.