Joint Functioning of Crane Rails and Industrial Buildings Crane Girders Under Local Crane Loads

The paper describes the theory and calculation of a crane rail combined with the upper zone of a crane runway girder under a local torque. Rail is analyzed as a continuously long girder on a solid elastic base loaded with a local torque. The crane runway girder web is simulated as an elastic base. The expressions of the rail rotation angle and girder web as well as the value of full torque are obtained as a result of solving the differential equation of girder twisting on the elastic half-plane. It is shown that these parameters depend not only on the torsional stiffness of crane rail, but also on the upper zone of crane runway girder as well as the elastic characteristic of the lower layer. Obtained expressions can be used to analyze stress strain state of both crane rail and the upper zone of crane runway girder web.