Foam Concrete Composite Panels Seismic Performance Experimental Research

Along with our country industrialization process accelerated,the construction industry and the continuous improvement of people's life environment quality requirements,apply high and new technology to the traditional construction,explore new type of light weight,high strength,environmental protection,energy-saving insulation,good seismic performance of materials,implementation of housing industrialization,prefabricated construction and green energy-saving concepts into the pace has been in the field of building structure is imperative.In this paper,the different reinforcement in the form of foam concrete composite panels for low cycle reciprocating load test,2 block 1/2 scaled model of the design of reference standard foam concrete composite panels,research the stress of standard foam concrete composite panels and the analysis of seismic performance and the influence of different form of reinforcement on the seismic performance.Such as cracking load,yield load and ultimate load and failure load,the wall of the bearing capacity,deformation capacity,energy dissipation capacity and failure pattern,and analyze the stiffness of the foam concrete composite panels,the elastic lateral stiffness and stiffness degradation,and summarizes the change of the stiffness in the whole process of loading and stiffness degradation effect on the performance of wall stress.At the same time also to the restoring force model of foam concrete composite panels has carriedon the preliminary discussion,foam concrete composite panels were summarized and the basic characteristics of the restoring force model,has carried on the restoring force model test fitting to wallboard,puts forward the yield hysteresis loop back and limit standard lag circle! Dimensionless skeleton curves,etc.Through the test data processing and analysis,it is concluded that wallboard of the hysteresis curve,skeleton curve and stiffness degradation curve,and so on.Test results show that:Compared with other filling wall plate,foam concrete composite board is a kind of light weight,high strength,green environmental protection energy-saving wall panel.In reinforcement ratio,concrete materials and specimen size exactly the same circumstances,different form of reinforcement(PMQ-1 in the form of reinforcement is inclined to the reinforcing cage,PMQ-2 in the form of reinforcement steel mesh)is inclined to the distribution of the wallboard had a greater influence on the mechanical properties and fracture development situation.Oblique way of reinforcing cage reinforcement foam concrete composite panels in the wall panel forming ability strong beam under tension and compression,makes the bearing capacity of the wall greatly enhanced.Analysis of the hysteresis curve,hysteresis loop back area PMQ-1than PMQ-2 of hysteresis loop back much larger,also explains the PMQ-1 ductility and energy dissipation capacity are much stronger than PMQ-2;Analysis of the skeleton curve,skeleton curve have been PMQ-1 envelope PMQ-2 skeleton curves,shows that bearing capacity more the PMQ-1 than PMQ-2.Oblique way of steel mesh reinforcement of foam concrete composite panels,due to the reinforcement is uniformly distributed in the wall,make the whole of the wallboard is greatly increased,for the development of cracks have stronger control,compared PMQ-1,when the wall crack damage cracks,which are only subtly and crack expand orderly,with regularity.