型钢超高强混凝土框架不同剪跨比抗震性能试验研究

为了研究型钢超高强混凝土框架的抗震性能及剪跨比对整体结构的影响，共进行了2榀单层单跨框架结构抗震性能试验对比分析，研究的主要目的是验证不同剪跨比型钢超高强混凝土框架结构的抗震性能。并且通过试验得到不同剪跨比下的破坏形态、P －Δ滞回曲线、骨架曲线、位移延性系数、强度退化、刚度退化、耗能能力。结果表明：剪跨比2的框架结构柱的破坏现象严重，其强度，刚度退化快，能量耗散能力低。

Experimental Study on Seismic Behavior of Steel Ultra - high Reinforced Concrete Frames of Different Shear Span Ratio

In order to study the seismic behavior of steel reinforced ultra-high strength concrete frame structure and the influence of shear span ratio to the entire structure ,this research carried out the seismic behavior of contrast analysis of two one-story and one-bay frames ,the main purpose of the research is to verify the seismic behavior of steel ultra - high strength concrete frame structures with different shear span ratio ,meanwhile gain the destroy style of the different shear span ratio , P - △ hysteresis curve ,skeleton curve ,displacement ductility ,energy dissipation ,strength and stiffness degradation .The result showed that the shear span ratio 2 of frame structure destroyed severely ,and the bottom of the column was damaged more severely than beam end ,strength and stiffness degenerated ,and the capacity of energy dissi-pation reduced as well .