Torque Calculation of Crossing Cantilever Beams with Equal Spans

In practical engineering design, torque is always ignored for the design of the crossing cantilever beams with equal spans, so that its safety reliability is reduced. Based on the theory of restraint moment, this paper deduces the simplified formula on the restrain moment generated among the crossing cantilever beams. At the same time, the application conditions of calculation formulae of the crossing cantilever beams with approximate equal spans are suggestively given. By the contrast analysis, the influence factors of torque are proposed in conception design and it is proved that the formula can be used in engineering design.