Experimental Investigation On Lateral Performance Analysis Of Cold-formed Thin-walled C Steel Frame

With the development of national economy and science and technology, the cold formed thin walled steel is more and more widely used in the construction field in the environment of the sustainable green building and the country’s support and promotion of the steel structure. In the traditional design of steel structures, the filling wall panels are only used as the partition wall and the maintenance structure. All aspects of the research show that the filler wall in the filler wall steel frame structure can play a role in the anti lateral force, is an important part of the structure. Therefore, it is of great theoretical significance and engineering reference value to study the mechanical mechanism and the influence of the filler wall on the bearing capacity and stiffness of the steel frame.The project "construction in Yunnan Province light steel structure assembled activities board standards for the preparation of"as the background, to Yunnan Province light steel structure assembled activity board room in the frames were lateral performance experimental study and numerical simulation analysis. Total test research of five frames, middle frame of the two specimens:pure steel frame and frame wall panels; gable frames three specimens:pure steel frame, frame and panel and wall and oblique pulling rod frame. The framework of load-bearing components including:middle post, a corner column, truss beam, truss and siliceous rocks sandwich wallboard, the middle column by back to back welding of cold-formed thin-walled C steel and corner column by mutually welded by 90 degrees and the cold-formed thin-walled C steel, truss beam and truss using cold-formed thin-walled C steel and angle steel welded together.Experiment mainly studied the wallboard and rod arranged on the light steel frame lateral force resisting performance, in contrast to the assembly of the lateral force resisting performance difference of different forms of the intermediate frames and gable frames. Through the test of overall frame, beam column node failure mode analysis, get the load displacement curve of each frame, analysis of each frame and the carrying capacity and stiffness degradation and analysis of factors affecting the performance of the steel frame lateral force, and on this basis, put forward some reference value in engineering is proposed. Finally, using finite element software to analyze the specimen, the specimen deformation maps, stress cloud chart and load displacement curve, comparison and analysis of the test and simulation results and analysis simulation test and slight error.