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(1大連理工大學(xué)海岸和近海工程國(guó)家重點(diǎn)實(shí)驗(yàn)室， 大連 116024； 2 華僑大學(xué)土木工程學(xué)院， 廈門(mén) 362021； 3 華東建筑設(shè)計(jì)研究總院， 上海 200002； 4 上海建工集團(tuán)工程研究總院， 上海 201114； 5 中國(guó)建筑第三工程局第二建設(shè)工程有限責(zé)任公司， 武漢 430074； 6 中國(guó)建筑第六工程局有限公司， 天津 300000)

［摘要］為了研究型鋼超高強(qiáng)混凝土框架的抗震性能和柱對(duì)整體結(jié)構(gòu)的影響，共對(duì)2榀單層單跨框架結(jié)構(gòu)進(jìn)行了抗震性能分析，主要研究剪跨比對(duì)整體框架結(jié)構(gòu)的影響，其主要目的是驗(yàn)證型鋼超高強(qiáng)混凝土柱鋼筋混凝土梁組成的框架結(jié)構(gòu)的抗震性能。通過(guò)試驗(yàn)得到了不同剪跨比下的P-Δ滯回曲線(xiàn)、骨架曲線(xiàn)、位移延性系數(shù)、強(qiáng)度退化、剛度退化、耗能能力、塑性鉸區(qū)的應(yīng)變。結(jié)果表明，剪跨比對(duì)結(jié)構(gòu)的影響非常明顯，小剪跨比結(jié)構(gòu)抗震性能退化明顯。

［關(guān)鍵詞］型鋼超高強(qiáng)混凝土； 框架結(jié)構(gòu)； 剪跨比； 塑性鉸； 應(yīng)變

中圖分類(lèi)號(hào)：TU398+.2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

作者簡(jiǎn)介：賈金青，博士，教授，Email: keyknown@163.net。