叠合柱边框内藏钢桁架带洞口组合核心筒抗震性能研究
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摘要
提出了钢管混凝土叠合柱边框内藏钢桁架混凝土组合核心筒,为了解该新型多重组合带洞口核心筒的抗震性能,进行了1个钢管混凝土叠合柱边框带洞口混凝土组合核心筒和1个钢管混凝土叠合柱边框内藏钢桁架带洞口混凝土组合核心筒的低周反复荷载试验研究,2个试验模型按原型结构的1/6缩尺.在试验研究基础上,分析比较了2个核心筒的滞回特性、承载力、延性、刚度衰减、耗能能力和破坏形态.结果表明,与钢管混凝土叠合柱边框带洞口混凝土组合核心筒相比,钢管混凝土叠合柱边框内藏钢桁架带洞口混凝土组合核心筒的抗震性能显著提高,建立了其承载力简化力学模型,计算结果与试验结果符合较好.
A new type of RC composite core walls with steel tube-reinforced concrete columns and concealed steel truss was proposed.In order to know the seismic performance of this composite core walls,two 1/6 prototypal scale perforated RC core walls specimens were designed,one of them was composite core walls with steel tube-reinforced concrete columns,the other one was composite core walls with steel tube-reinforced concrete columns and concealed steel truss,and experimental study on seismic behavior of them under the cyclic loading was carried out.Based on the experiment,the hysteretic behavior,load-carrying capacity,ductility,stiffness attenuation,energy dissipation and failure mode were contrastively discussed.The test results show that the seismic performance of RC core walls with steel tube-reinforced concrete columns is greatly improved by the concealed steel truss.Finally,the mechanical model for calculating load-carrying capacity of the new type of RC composite core walls was proposed,and the calculating results agreed well with the suitable test results.
A new type of RC composite core walls with steel tube-reinforced concrete columns and concealed steel truss was proposed.In order to know the seismic performance of this composite core walls,two 1/6 prototypal scale perforated RC core walls specimens were designed,one of them was composite core walls with steel tube-reinforced concrete columns,the other one was composite core walls with steel tube-reinforced concrete columns and concealed steel truss,and experimental study on seismic behavior of them under the cyclic loading was carried out.Based on the experiment,the hysteretic behavior,load-carrying capacity,ductility,stiffness attenuation,energy dissipation and failure mode were contrastively discussed.The test results show that the seismic performance of RC core walls with steel tube-reinforced concrete columns is greatly improved by the concealed steel truss.Finally,the mechanical model for calculating load-carrying capacity of the new type of RC composite core walls was proposed,and the calculating results agreed well with the suitable test results.
引文
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[8]常卫华,曹万林,赵长军,等.内藏钢桁架混凝土核心筒抗震试验及计算分析[J].北京工业大学学报,2008,34(4):379-386.CHANG Wei-hua,CAO Wan-lin,ZHAO Chang-jun,et al.Experimental and analysis on seismic behavior of RC compositecore walls with concealed steel truss[J].Journal of Beijing University of Technology,2008,34(4):379-386.(in Chinese)
[9]钱稼茹,林立岩,王湛,等.CECS188:2005钢管混凝土叠合柱结构技术规程[S].北京:中国计划出版社,2005.QIAN Jia-ru,LIN Li-yan,WANG Zhan,et al.CECS188:2005 Technical specification for steel tube-reinforced concretecolumns tructure[S].Beijing:China Planning Press,2005.(in Chinese)
[10]程文灢，颜德姮，康谷贻．混凝土结构[M].4版.北京:中国建筑工业出版社,2002.
[11]曹万林,王敏,王绍合,等.矩形钢管混凝土边框组合剪力墙及筒体结构抗震研究[J].工程力学,2008,25(增刊1):58-67.CAO Wan-lin,WANG Min,WANG Shao-he,et al.Aseismic research of composite shear wall and core walls withrectangular concrete filled steel tube columns[J].Engineering Mechanics,2008,25(Supp.1):58-70.(in Chinese)
[2]王志浩,方鄂华,钱稼如.钢骨混凝土剪力墙的抗弯性能[J].建筑结构,1998,28(2):13-16.WANG Zhi-hao,FANG E-hua,QIAN Jia-ru.Flexural behavior of steel reinforced concrete shear walls[J].BuildingStructure,1998,28(2):13-16.(in Chinese)
[3]吕西林,董宇光,丁子文.截面中部配置型钢的混凝土剪力墙抗震性能研究[J].地震工程与工程振动,2006,26(6):101-107.LXi-lin,DONG Yu-guang,DING Zi-wen.Study on seism ic behavior of steel reinforced concrete wall[J].EarthquakeEngineering and Engineering Vibration,2006,26(6):101-107.(in Chinese)
[4]曹万林,张建伟,陶军平,等.内藏钢桁架混凝土组合剪力墙与钢桁架抗震性能比较[J].北京工业大学学报,2007,33(1):31-36.CAO Wan-lin,ZHANG Jian-wei,TAO Jun-ping,et al.Seismic performance comparison between shear wall with concealedsteel truss and steel truss[J].Journal of Beijing University of Technology,2007,33(1):31-36.(in Chinese)
[5]曹万林,张建伟,陶军平,等.内藏桁架的混凝土组合低剪力墙试验研究[J].东南大学学报(自然科学版),2007,37(2):195-200.CAO Wan-lin,ZHANG Jian-wei,TAO Jun-ping,et al.Experimental study on low-rise RC shear wall with concealed truss[J].Journal of Southeast University:Natural Science Edition,2007,37(2):195-200.(in Chinese)
[6]曹万林,张建伟,董宏英,等.内藏桁架混凝土组合高剪力墙抗震性能.哈尔滨工业大学学报,2009,41(4):153-158.CAO Wan-lin,ZHANG Jian-wei,DONG Hong-ying,et al.Seismic performance of high-rise shear wall with concealed truss[J].Journal of Harbin Institute of Techonology,2009,41(4):153-158.(in Chinese)
[7]曹万林,常卫华,张建伟,等.内藏钢桁架带洞口混凝土组合核心筒抗震试验及分析[J].东南大学学报(自然科学版),2008,38(2):283-288.CAO Wan-lin,CHANG Wei-hua,ZHANG Jian-wei,et al.Experimental study on seismic behavior of RC composite perforatedcore walls with concealed steel truss[J].Journal of Southeast University:Natural Science Edition,2008,38(2):283-288.(in Chinese)
[8]常卫华,曹万林,赵长军,等.内藏钢桁架混凝土核心筒抗震试验及计算分析[J].北京工业大学学报,2008,34(4):379-386.CHANG Wei-hua,CAO Wan-lin,ZHAO Chang-jun,et al.Experimental and analysis on seismic behavior of RC compositecore walls with concealed steel truss[J].Journal of Beijing University of Technology,2008,34(4):379-386.(in Chinese)
[9]钱稼茹,林立岩,王湛,等.CECS188:2005钢管混凝土叠合柱结构技术规程[S].北京:中国计划出版社,2005.QIAN Jia-ru,LIN Li-yan,WANG Zhan,et al.CECS188:2005 Technical specification for steel tube-reinforced concretecolumns tructure[S].Beijing:China Planning Press,2005.(in Chinese)
[10]程文灢，颜德姮，康谷贻．混凝土结构[M].4版.北京:中国建筑工业出版社,2002.
[11]曹万林,王敏,王绍合,等.矩形钢管混凝土边框组合剪力墙及筒体结构抗震研究[J].工程力学,2008,25(增刊1):58-67.CAO Wan-lin,WANG Min,WANG Shao-he,et al.Aseismic research of composite shear wall and core walls withrectangular concrete filled steel tube columns[J].Engineering Mechanics,2008,25(Supp.1):58-70.(in Chinese)
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