【摘要】 为了研究型钢超高强混凝土框架的抗震性能和柱对整体结构的影响,共对2榀单层单跨框架结构进行了抗震性能分析,主要研究剪跨比对整体框架结构的影响,其主要目的是验证型钢超高强混凝土柱-钢筋混凝土梁组成的框架结构的抗震性能。通过试验得到了不同剪跨比下的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、塑性铰区的应变。结果表明,剪跨比对结构的影响非常明显,小剪跨比结构抗震性能退化明显。更多还原

【Abstract】 In order to study the influence of the seismic behavior of steel reinforced super-high strength concrete frame structure and the columns on the entire structure,the seismic behavior analysis was carried out on two pieces of one-story and one-bay frames,to mainly study the influence of shear span ratio on the entire structure. The main purpose was to verify the seismic behavior of frame structure composed of steel reinforced super-high strength concrete columns and reinforced concrete beams. In tests,parameters under different shear span ratios were obtained including P-Δ hysteresis curve,skeleton curve,drift ductility coefficient,strength degradation,stiffness degradation,energy dissipation and the strain in plastic hinge region. The results show that shear span ratio has obvious influence on the structure and structural seismic performance with small shear span ratio has significant degradation.更多还原