Study On The Performance Of Semi-rigid Connections Node Of Beam With Corrugated Webs-to-column Minor Axis Direction

The steel structure shows outstanding superiority among super high-rise and large span structure.The stiffness of Out-of-plane of the web with high ratio of high to thickness is smaller,and prone to local buckling.The corrugated web has a large stiffness of Out-of-plane,and the beam with corrugated web have a Large shear buckling bearing capacity and good economic benefit and application prospect.The study on the performance of extended end-plate semi-rigid connections of beam with corrugated webs-to-column is mainly focused on the strong axial direction,but the research of the minor axis direction is rare.The connect of minor axis direction is an important part of the whole steel frame,the overall performance of structure is Influenced by the connect of minor axis direction.Force performance of minor axis direction must be considered when analysis higher space frame,so it is necessary to do research on the performance of the connect of minor axis direction.Semi-rigid connections of beam with corrugated webs-to-column Minor Axis is adopted.Firstly,the ANSYS software is used to simulate the numerical simulation of the side column and the column joints under uniaxial loading.Then adjusting the height of corrugated web,the thickness of corrugated web,the thickness of end plate,the Anti sliding coefficient and bolt diameter,and then analyses It's effect for moment rotation curve.Then researching the hysteretic behavior of the nodes under cyclic loading and the hysteretic curves of the node will be gained.lastly,analyzed the influence of the height of corrugated web,the thickness of corrugated web,the thickness of end plate,the Anti sliding coefficient and bolt diameter on the performance of back side column joints and the skeleton curve of node is drawn.The results show that the moment-rotation of BASE specimen of edge and middle column node shows a linear relationship,and the moment-rotation shows a nonlinear relationship when the bending moment increase to a certain extent through the above analysis.The stiffness of the connection is obviously reduced with the bending moment increasing.The small increment of the bending moment will also apparently cause the increase of the rotation angle,then the node will reach the limit state,till the connection is decreased.The hysteresis loop of hysteresis curve of the BASE model of edge and middle column node is stable and full,fusiform shape and energy dissipation coefficientis greater than 2,and the seismic performance and energy dissipation capacity of middle column joint is better.With the increase of corrugated web height,corrugated web thickness,the thickness of the end plate,the ultimate moment of the edge column node increases gradually,but the energy dissipation coefficient decreased gradually.with the increase of bolt diameter,the ultimate moment of the edge column node increases,but the energy dissipation coefficient increases first and then decreases.influence of anti-sliping coefficients on the ultimate bending moment and energy dissipation of edge column node is small.