攀钢高炉半矿渣钢筋混凝土柱的低周反复荷载试验
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摘要
攀钢高炉渣为当地新型建筑材料,属低钙富钛重矿渣,具有多孔、强度高等特征。通过对12根高炉半矿渣混凝土常规框架模型柱的低周反复荷载试验,从轴压比、箍筋形式、强度等方面分析了各柱的滞回曲线、骨架曲线、位移延性等指标的变化趋势;结合《抗规》和《混规》等规范的相关条文,重点对半矿渣混凝土与钢筋的粘结性质、柱的延性性能进行分析。
With low content in CaO and high content in TiO2,Panggang slag aggregate is a special local building material with characteristic of multi-hole and high strength.Subjected to horizontal low cyclic loading,based on experiment of 12 columns composed by fine aggregate of slag materials,change trend of indexes,such as hysteretic curve,skeleton curve and displacement ductility,induced by variation of axial compression ratio,shapes of hoop and concrete strength etc,are analyzed.Combined with related rules of codes for seismic design of buildings and design of concrete structures etc,bond behavior between fine slag aggregate concrete and reinforcement and practical column's ductility performance are analyzed particularly.
With low content in CaO and high content in TiO2,Panggang slag aggregate is a special local building material with characteristic of multi-hole and high strength.Subjected to horizontal low cyclic loading,based on experiment of 12 columns composed by fine aggregate of slag materials,change trend of indexes,such as hysteretic curve,skeleton curve and displacement ductility,induced by variation of axial compression ratio,shapes of hoop and concrete strength etc,are analyzed.Combined with related rules of codes for seismic design of buildings and design of concrete structures etc,bond behavior between fine slag aggregate concrete and reinforcement and practical column's ductility performance are analyzed particularly.
引文
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[8]孙金坤,陈伟,等.复合高钛重矿渣混凝土与钢筋粘结性能试验研究[J].四川建筑科学研究,2010,36(4):216～219Sun Jin-kun,Chen Wei,et al.Experiment and Analysisof Bond Properties Between Complex High TitaniumHeavy Slag Concrete(CHTHSC)and Reinforcement[J].Sichuan Building Science,2010,36(4):216～219(in Chinese)
[9]唐九如.钢筋混凝土框架节点抗震[M].南京:东南大学出版社,1998Tang Jiu-ru.Seismic Resistance of Reinforced ConcreteFrame Beam-Column Joints[M].Nanjing:SoutheastUniversity Press,1998(in Chinese)
[10]GB50011-2010,建筑抗震设计规范[S].GB50011-2010,Code for Seismic Design of Building[S](in Chinese)
[2]陈剑雄,肖斐.钛矿渣综合利用的研究[J].建筑石膏与胶凝材料,2005,8(6):672～676Chen Jian-xiong,Xiao Fei.Research on ComprehensiveUtilization of Slag Material[J].Gypsum and Cement forBuilding,2005,8(6):672～676(in Chinese)
[3]陈伟,焦涛,等.高钛矿渣骨料掺粉煤灰复合混凝土配制研究[J].建筑技术,2010,41(8):758～759Chen Wei,Jiao Tao,et al.Study on Mix Design of High-Titanium Slag Aggregate Concrete Mixed Fine Coal Ash[J].Architecture Technology,2010,41(8):758～759(in Chinese)
[4]陈伟,黄双华,等.高钛高炉渣钢筋混凝土梁正截面强度试验研究[J].四川建筑科学研究,2009,4:51～53Chen Wei,Huang Shuang-hua,et al.ExperimentResearch on Flexural Performance of RC Beam by HighTitanium Blast Furnance Slag[J].Sichuan BuildingScience,2009,4:51～53(in Chinese)
[5]郭子雄,吕西林.高轴压比框架柱恢复力模型试验研究[J].土木工程学报,2004,37(5):32～38Guo Zi-xiong,Lv Xi-lin.Experimental Study on TheHysteretic Model of RC Columns with High AxialCompressive Ratio[J].China Civil EngineeringJournal,2004,37(5):32～38(in Chinese)
[6]王清湘,赵国藩,等.高强混凝土柱延性的试验研究[J].建筑结构学报,1995,16(4):22～31Wang Qing-xiang,Zhao Guo-fan,et al.Study onDuctility of Reinforced High Strength Concrete Columns[J].Journal of Building Structure,1995,16(4):22～31(in Chinese)
[7]沈在康.混凝土结构试验方法新标准应用讲评[M].北京:地震出版社,1992Shen Zai-kang.Comment on New Standard for ConcreteStructural Experiment[M].Beijing:EarthquakePublishing House,1992(in Chinese)
[8]孙金坤,陈伟,等.复合高钛重矿渣混凝土与钢筋粘结性能试验研究[J].四川建筑科学研究,2010,36(4):216～219Sun Jin-kun,Chen Wei,et al.Experiment and Analysisof Bond Properties Between Complex High TitaniumHeavy Slag Concrete(CHTHSC)and Reinforcement[J].Sichuan Building Science,2010,36(4):216～219(in Chinese)
[9]唐九如.钢筋混凝土框架节点抗震[M].南京:东南大学出版社,1998Tang Jiu-ru.Seismic Resistance of Reinforced ConcreteFrame Beam-Column Joints[M].Nanjing:SoutheastUniversity Press,1998(in Chinese)
[10]GB50011-2010,建筑抗震设计规范[S].GB50011-2010,Code for Seismic Design of Building[S](in Chinese)
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