Analysis of Stress Distribution of Double-layer Shoulder Beam of Concrete-filled Steel Tubular

Abstract

Abstract At present, single-layer shoulder beam can not meet the operation of large-tonnage bridge cranes with different elevations. However, due to the complexity of the bearing forms of double-layer shoulder beam, there is no corresponding design formula in the code. In order to study the one-way pushing force performance of concrete filled steel tubular (CFST) double-layer shoulder beam with mid-column, combined with the prototype of the shoulder beams in a shipbuilding building, the scale of the beam was analyzed by ABAQUS software, and the P-Δ curve was calculated, the failure process and the stress mechanism were described, and the stress distribution law of lower shoulder beams in elastic stage was emphatically analyzed.