Experimental research on seismic behavior of full-scale steel reinforced concrete shear wall
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Abstract:
In order to explore the influence of steel on the seismic performance of full-length shear wall structure under different shear span ratio, a new form of steel-bolt-concrete shear wall is designed for super-high-rise buildings. Two full-scale steel reinforced concrete shear walls and two reinforced concrete shear walls were tested under low cyclic loading for comparison of hysteretic curve, stiffness degeneration and energy dissipation between them. The results show that bending failure occurs when the shear wall specimen has a large shear span ratio, while shear failure occurs when the shear span ratio is small. Compared with the reinforced concrete shear wall specimens, the shear walls with steel present slower development of cracks and slighter damage degree.The bearing capacity, deformation capacity, ductility, overall stiffness and energy dissipation capacity of shear wall specimens reinforced with steel have been improved.The shear wall specimens with small shear span ratio have higher bearing capacity, initial stiffness and energy dissipation capacity but the ductility is low. The steel, bolts and concrete work well together.
