Wallborad-steel Frame Collaborative System Quasi-static Test And Finite Element Analysis

Etaining wall in the steel structure housing system not only have heat preservation,heat insulation and retaining effect, but also have effect on the structure of the lateralforce resistance. But the lack of relevant experimental and theoretical research at homeand abroad, so this paper focuses on the pseudo static test and the corresponding finiteelement analysis of model validation for wall-steel frame system, and analysis on fourconnecting the embedded and external wall-steel frame system parameters on the basisof the experiment, The main research contents and results are as follows:（1）The model of a steel frame and a steel frame with enclosure ALC walls in1:2scale are designed and the quasi-static tests and finite element analysis are proceeded.The results show that: in the early, ALC walls are involved in stress. Along with the loadincrease ALC walls diagonal tight phenomenon more obvious. Fissure concentratedaround the wallboard node, in the end ALC walls around the wallboard node startpeeling off, quit the job, by the steel frame to carry on; the initial stiffness of the steelframe with enclosure ALC walls increases by1.64times than steel frame, the ultimatecapacity load increases by1.17times and the energy dissipation coefficient increased by1.16times. Besides, the ALC panels can effectively prevent the steel frame stiffnessdecrease too fast in the early time. At the same time, it can provide extra seismicdefense, which is very beneficial.（2）parametric analysis of four-point connection for steel frame with enclosureALC walls and steel frame with external ALC walls is done, including of span-depthratio, wall width and wall thickness. The results show that: four-point connection forsteel frame with enclosure ALC walls, the initial stiffness and ultimate bearing capacityas span-depth ratio, the width and thickness of the single block wall increasesapproximately linearly increasing trend. Four-point connection for steel frame withexternal ALC walls, the initial stiffness of steel frame with external ALC walls is mainlydetermined by the stiffness of column and the external walls almost make nocontribution. span-depth ratio, the width and thickness of the single block wall changesin the parameters have little influence upon the lateral resistance of steel framework;（3）One bay steel frame with enclosure light steel keel wall in1:2scale aredesigned and the quasi-static tests and finite element analysis are proceeded. The resultsshow that: in the early, light steel keel is not involved in stress, with the interlayerdisplacement increase light steel keel began to participate in stress, but stress isconcentrated in the connection parts of light steel keel and frame, light steel keel don’tparticipate in lateral wall-steel frame system. light steel keel wall is generally can’tbear the load but only a defense for the building.