Research On Seismic Behavior Of Steel High Performance Concrete Structural Walls

Steel high Performance concrete structural wall was a combination of steel and HighPerformance concrete. They can give full play to the advantages of steel and concrete andhave better dynamite behavior such as ductility and ability of dissipating energy than highPerformance concrete structural walls. With the rapid development of China’s economy andthe level of the high-rise building, steel reinforced high performance concrete shear wall andwill have wide application prospect in China. At present domestic and foreign research on theseismic performance of the structure is very little, for its stress performance has importanttheoretical significance and engineering application value analysis.Methods using ANSYS software with solid modeling of steel high performance concreteshear wall by finite element numerical simulation, considering the influence of steel shearwall arrangement, axial compression ratio, shear span ratio and the amount of steel of steelhigh performance concrete performance of shear wall, built in3groups of10the finiteelement model of specimens. Hysteretic behavior, mechanical characteristics of steel andconcrete structure, failure mechanism of structure under cyclic loading was analyzed. Theresults showed that: SHPC shear wall with steel ratio will increase the bearing capacity isincreased to a certain extent, but not the bigger the better, when the steel is too large, thespecimen will brittle failure, is not conducive to seismic; type of steel shear wall withconcealed column layout SHPC is also has some influence on the the overall ductility, layoutof the form SHPC shear wall seismic performance of "H" steel column is better; the axialcompression ratio is an important factor that affects the performance of SHPC shear wallseismic. With the increase of axial compression ratio, the initial stiffness and the peak loadincreases gradually, and the axial compression ratio increases, the specimen strength, stiffnessdegradation more quickly, energy dissipation capacity decrease. When the axial compression ratio reaches0.5, the ductility decrease obviously; the shear span ratio is one of the importantinfluence factors of steel high performance concrete shear wall seismic performance. As theshear span ratio decreases, the bearing capacity of the specimen is increased, but the ductility,energy dissipation capacity, rigidity degeneration of seismic performance is poor, more proneto brittle failure. Especially when the shear span ratio is less than1.5, the seismic behavior ofsamples deteriorated faster.This paper analyzes various type steel can force performance of concrete shear wallunder cyclic loading, the conclusion of the oretical research of SHPC shear wall has a certainreference value, has laid a good foundation for further research.