Test Research For Lattice Concrete Wall Aseismatic Performance

With the development of economy, the contradiction of resource supply is much moreserious in china, earthquake happens frequently each year, which bring a great loss to ourcountry.The paper is mainly about “concrete lattice walls”structure system, base on theaseismatic concept."concrete lattice walls" is a new kind of wall constituted with EPSinstallation board, steel rebar lying vertical and horizontal direction and Automatic flowconcrete.6pieces of well designed lattice concrete wall, after removing the formwork, are testedbase on quasi-static experiment and MTS loading equipment. The "concrete lattice walls" keepthe strong point as bearing capacity, long life working performance,good seismic performanceand so on, at the same time reduce the defect such as high deadweight,good rigidity,highinertial load under horizontal shear,lack side displacement and so on.6pieces of well designedlattice concrete wall is used for this test, Through comparison of the wall with differentstiffener reinforcement and different axial compression ratio&high to width ratio; Through thetest date take analysis of the deformation and destruction features of the wall; Making hystersiscurve and skeleton curve, then confirm the aseismatic features such as: cracking load,ultimateload,yield load,destroy load and consumption coefficient, ductility coefficient. in research ofconcrete lattice walls the deformation and destruction features with with stiffener or not anddifferent axial compressive ratio and ratio of high to width.The ultimate bearing capacity of wallis test by finity cell experiment, for improving the "slab clash" perform by optimizing thestructure of wall.The results of experiments shows: the destruction features of wall sample with the axialcompression ratio0.1,0.2and ratio of high to width0.6,0.8is mainly shear failure,the both sideconcrete is press failure, having good deformability and consumption capability,duringincreasing the load, the crack develop from beam to the bottom of the wall, become thestructure same as strong column-low beam.when the wall appears crack, the rigidity curve lostfast, when the wall reach the yield load, the wall appears good deformability due to the mildrigidity curve.It shows that higher axial compression ratio, better carrying capability anddeformability, higher high to width ratio, lower carrying capability and deformability.the finityelement methods get the same result as the wall experiment, proved as a good method;the wallused new polystyrene template after changing the structure form get the same capacity and goodseismic performance, at the same time it saves the quantity of concrete around10%and have abright future.