STRESS ANALYSIS OF CURVED MEMBERS WITH TRAPEZOID SECTIONS AND CALCULATLON OF CRANE HOOKS

In this paper, the authors develop two equations of equilibrium of curved members with trapezoid sections for plane problems in polar coordinates. Then, according to elastic theories, the authors obtain the solutions of the members loaded at one end by a concentrated force and calculate various crane hooks with trapezoid sections. The research gives not only a analysis method of curved members with non-rectangular cross-sections but also a more reasonable theory basis to design and to compute the crane hooks.