Analysis On The Lateral Resistant Performance Of Light-Gauge Steel Composite Wall

Acting as a member of the light-gauge steel structure, the cold-formed thin-walled steel has a series of prominent advantages such as light weight, high strength, environment protection, energy saving, and ease of prefabrication. The light-gauge steel structure building is become more and more popular in the world, but just begin in China, the structure should have good resistant-seismic behavior, due to the traditional resistant-lateral systems, the resistant-lateral rigidity and ductility of light-gauge steel structure can't meet resistant-seismic desires.Basing on the question, the resistant-lateral of the light-gauge steel composite wall are study in this paper, the main parts of the text are:(1) Five light-gauge steel composite specimens with full scale are tested in the paper using low cyclic loading, the specimens can divide into two parts (wall I with diagram wall II without diagram), the performance of resistant-lateral is researched under the earthquake. This paper inquired into the capacity of shearing force, the damage state, the ductility features, the hysteretic characteristics and the energy dissipating capacity, etc, also the performance of opening specimen and traditional specimen are discussed.(2) Basing on the experiment, nonlinear analysis is conducted on specimens with numerical technology in this paper. The specimens with different styles (diagram, steel strips, opening) model the lateral performance of specimens using ANSYS software with lateral loading.(3) The mechanism of diagram is researched, at the same time the displacement of diagram is calculated using the nonlinear methods.(4) The effect factor in the light-gauge steel structure is discussed and the opening factor is presented by the formula. Combing with finite element method, the influence of steel strips and diagram are discussed, finally, the methods of designing this kind of shear wall is presented in this paper.Basing on the experiment and element finite analysis, the wall has good performance in resisting the lateral force under the safe connection. The calculation method and the finite element analysis are suggested to the development of light-gauge steel structure.