Study Of Top And Seat Angle Semi-rigid Connections Of H-beams With Corrugated Webs

Upper and seat steel angle connection is in the form of a relatively simple structure connection nodes, which is regarded as the typical semi-rigid connection.Upper and seat steel angle connection is steel beams connecting by setting the angle in both the upper and seat beam flanges bolted together with column. The structure connection node is simple, clear force transmission, without on-site welding,short construction period. It has already successfully applied in engineering. However,the node structures are diverses and complex mechanical properties, showed significant nonlinearity. Corrugated web H steel beam uses corrugated steel as webs. In the case of smaller thickness, the node can have an higher plane stiffness and buckling strength without the stiffener. If properly designed, the yield strength of corrugated web can reach the shear buckling strength of steel, which will has highly material utilization,which can save a lot of steel, and has very significant economic benefits. China’s current research for connection with top and seat angle semi-steel nodes are less, and also less for the corrugated web H-beam research, and for corrugated web H-beam connection with top and seat angle semi-steel nodes are less and less. Therefore, this research is of great significance.Firstly, a brief introduction to research status on upper and seat angles semi-rigid connections; describes the classification of semi-rigid connections, features and research methods and the constitutive model. Then systematically expounded the theoretical of finite simulation. Use the finite element software ANSYS simulation corrugated web H-shaped steel beam connected with top and bottom angle semi-rigid nodes under static load. Analys the impacts of angle thickness, height of corrugated web H steel beam, bolt diameter, bolt spacing, high strength bolt preload and other factors on the mechanical properties of the node. Respectively get corresponding moment- rotation curve and stress cloud, etc. Thus get some valuable conclusions, have some significance to the study of top and seat angle semi-rigid connections of H-beams with corrugated webs.