Study On Seismic Performance Of Light Steel Composite Insulation Wall

In recent years, along with the continuously rapid development of buildingstructure, cold bending thin-wall steel composite wall has become a majorconstruction of colleges and universities is becoming more and more attention in hotspots, however, the research on the seismic of cold-formed thin-walled composite wallin our country is very small, so it is very important to development and improvementof the design theory of cold-formed thin-wall steel composite wall the structure hasthe value.In order to study the seismic behavior of the cold-formed thin-walled steelcomposite wall, this paper considers the strength of the aerated concrete block, aspectratio and the distance between wall surface horizontal brace and brace, made a set ofpseudo static test, the wall of the load and displacement curve, skeleton curve,hysteretic curve and ductility index.Based on the experiments, this paper uses ABAQUS finite element analysissoftware the test process of simulation analysis, by comparison, can draw the softwaresimulation results can be used as an important theoretical basis for further studyof test. On this basis, the seismic performance of the wall by using the finite elementsoftware ABAQUS, the block strength of cold-formed thin-wall steel composite wallheight width ratio, the wall outside the horizontal reinforcement, brace parameters,some suggestions for engineering design reference materials. Through softwaresimulation, increase of aerated concrete block and mortar strength, the shear capacityof the wall increases gradually, the initial stiffness increases gradually; as cold-formedthin-walled steel wall ratio increased, the cold bending composite insulated wall shearcapacity gradually reduce, but gradually enhance its capability of deformation of thewall. External wall of horizontal reinforcement can enhance the whole wall, whenthe bar spacing is small, can effectively improve the ductility of the wall, along withthe horizontal tie bar spacing increases, the shear capacity decreases wall, yield loadand ultimate load with reduced; finally through changing the structure form, the wallsurface only the horizontal reinforcement and compared with oblique lacingwith horizontal reinforcement work together, the oblique lacing and horizontaltensile structure reinforcement work together the shear bearing capacity of higher. Finally, from the point of view to analyze the thermal performance of heatinsulation composite wall insulation can meet the requirements of specification,summed up the composite wall is feasible in energy-saving insulation, and energy-saving effect is also very good.Through this study, can provide reference value for the seismic design of cold-formed steel composite wall.