(1大连理工大学海岸和近海工程国家重点实验室， 大连 116024； 2 华侨大学土木工程学院， 厦门 362021； 3 华东建筑设计研究总院， 上海 200002； 4 上海建工集团工程研究总院， 上海 201114； 5 中国建筑第三工程局第二建设工程有限责任公司， 武汉 430074； 6 中国建筑第六工程局有限公司， 天津 300000)

［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。

［关键词］型钢超高强混凝土； 框架结构； 剪跨比； 塑性铰； 应变

中图分类号：TU398+.2文献标识码：A文章编号：1002-848X(2017)01-0088-06

Effect of shear span ratio on seismic behavior of frame composed by steel reinforced super-high strength concrete columns and reinforced concrete beams

Jia Jinqing1, Guo Zixiong2, Bao Lianjin3, Zhou Hong4, Liu Bo5, Wang Cungui6

(1 State Key Laboratory of Coastal and Offshore Engineering， Dalian University of Technology， Dalian 116024，  China; 2 College of Civil Engineering, Huaqiao University, Xiamen 362021, China; 3 East China Architecture Design & Research Institute, Shanghai 200002, China; 4 Engineering General Institute of Shanghai Construction Group, Shanghai 201114, China; 5 The Second Construction Co．，Ltd． of China Construction Third Engineering Bureau， Wuhan 430074, China；6 China Construction Sixth Engineering Division Co., Ltd., Tianjin 300000, China)

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.

Keywords:steel reinforced super-high strength concrete; frame structure; shear span ratio; plastic hinge; strain

作者简介：贾金青，博士，教授，Email: keyknown@163.net。