梁端开孔钢筋混凝土框架梁受力性能的试验研究
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摘要
高层建筑中,采用开孔梁可以有效降低建筑层高,节约建筑空间。但孔洞破坏了混凝土梁的原有受剪机理,尤其是框架梁端部开孔使梁端塑性铰区域受力变得复杂。通过对5根端部开孔的钢筋混凝土框架梁试件进行反复荷载作用下的试验,研究了在低周反复荷载作用下端部开孔梁的受力性能,分析了不同开孔尺寸和补强方式的开孔梁的破坏特征及抗震滞回性能,从而得出有效的补强配筋形式。
In modern high-rise constructions,opening beams are used extensively in reducing buildings' story height and saving its space.However,the beam's shear mechanism is changed worse and the mechanism is intricated by opening,especially in the plastic area-the end of the beam beside the column here.By applying cycle loading,laboratory studies on the five beams of RC-frame with circular opening in the end are carried out,and the mechanical behavior of the beams of RC-frame with end circular opening are studied.The better method to enforce the opening beams is presented by analysing the failure properties and anti-seismic hysteretic characteristics of opening beams with different opening size and reinforced methods.
In modern high-rise constructions,opening beams are used extensively in reducing buildings' story height and saving its space.However,the beam's shear mechanism is changed worse and the mechanism is intricated by opening,especially in the plastic area-the end of the beam beside the column here.By applying cycle loading,laboratory studies on the five beams of RC-frame with circular opening in the end are carried out,and the mechanical behavior of the beams of RC-frame with end circular opening are studied.The better method to enforce the opening beams is presented by analysing the failure properties and anti-seismic hysteretic characteristics of opening beams with different opening size and reinforced methods.
引文
[1]Nasser K W,Acavalos A,Daniel H R.Behavior anddesign of large openings in reinforced concrete beams[J].ACI Journal,1967,64(l):25―33.
[2]Mansur M A,Tan K H,Lee S L.Collapse loads of R/Cbeams with large openings[J].Journal of StructuralEngineering,ASCE,1984,110(11):2602―2618.
[3]Mansur M A,Lee Y F,Lee S L.Tests on RC continuousbeams with openings[J].Journal of StructuralEngineering,1991,117(6):1953―1606.
[4]殷芝霖.钢筋混凝土圆孔梁的抗震性能及其设计方法[J].建筑结构学报,1995,16(2):19―32.Yin Zhilin.Seismic behavior and design method of RCbeams with circular openings[J].Journal of BuildingStructures,1995,16(2):19―32.(in Chinese)
[5]蔡健,李静,张学文,等.腹部开设圆孔的钢筋混凝土梁的实验研究(I)[J].华南理工大学学报(自然科学版),1997,25(2):68―72.Cai Jian,Li Jing,Zhang Xuewen,et al.An experimentalstudy on reinforced concrete beam with circular opening(I)[J].Journal of South China University of Technology(Natural Science Edition),1997,25(2):68―72.(inChinese)
[6]吴炎海,程浩德.钢筋混凝土带开孔梁框架抗震性能试验研究[J].地震工程与工程振动,2004,24(2):75―81.Wu Yanhai,Cheng Haode.Experimental study onseismic behavior of reinforced concrete frame withopenings[J].Earthquake Engineering and EngineeringVibration,2004,24(2):75―81.(in Chinese)
[7]刘荣桂,吕志涛,周志勇.预应力开孔梁抗剪配筋设计[J].工业建筑,1998,28(12):17―20.Liu Ronggui,Lu Zhitao,Zhou Zhiyong.Design of theshear reinforcements of the prestressed beams with largeopenings[J].Industrial Construction,1998,28(12):17―20.(in Chinese)
[8]刘荣桂,吕志涛.混凝土(RC/PC)开孔梁实验研究与理论分析[J].土木工程学报,2004,37(7):29―34.Liu Ronggui,Lu Zhitao.Experimental research andtheoretical analysis on reinforced and pre-stressedconcrete beams with large openings[J].China CivilEngineering Journal,2004,37(7):29―34.(in Chinese)
[9]国振喜.简明钢筋混凝土结构构造手册[M].北京:机械工业出版社,2005,1:179―180.Guo Zhenxi.Concise constructed handbook of reinforcedconcrete structure[M].Beijing:Mechanical IndustryPress,2005,1:179―180.(in Chinese)
[10]中华人民共和国标准.CECS39:32钢筋混凝土深梁设计规程[S].北京:中国建筑工业出版社,1993.National standard of the republic of China.CECS39:32Specification for design of reinforced concrete deepbeam[S].Beijing:China Architecture&Building Press,1993.(in Chinese)
[11]中华人民共和国标准.JGJ3-2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002.National Standard of the Republic of China.JGJ3-2002Technical specification for concrete structures of tallbuilding[S].Beijing:China Architecture&BuildingPress,2002.(in Chinese)
[2]Mansur M A,Tan K H,Lee S L.Collapse loads of R/Cbeams with large openings[J].Journal of StructuralEngineering,ASCE,1984,110(11):2602―2618.
[3]Mansur M A,Lee Y F,Lee S L.Tests on RC continuousbeams with openings[J].Journal of StructuralEngineering,1991,117(6):1953―1606.
[4]殷芝霖.钢筋混凝土圆孔梁的抗震性能及其设计方法[J].建筑结构学报,1995,16(2):19―32.Yin Zhilin.Seismic behavior and design method of RCbeams with circular openings[J].Journal of BuildingStructures,1995,16(2):19―32.(in Chinese)
[5]蔡健,李静,张学文,等.腹部开设圆孔的钢筋混凝土梁的实验研究(I)[J].华南理工大学学报(自然科学版),1997,25(2):68―72.Cai Jian,Li Jing,Zhang Xuewen,et al.An experimentalstudy on reinforced concrete beam with circular opening(I)[J].Journal of South China University of Technology(Natural Science Edition),1997,25(2):68―72.(inChinese)
[6]吴炎海,程浩德.钢筋混凝土带开孔梁框架抗震性能试验研究[J].地震工程与工程振动,2004,24(2):75―81.Wu Yanhai,Cheng Haode.Experimental study onseismic behavior of reinforced concrete frame withopenings[J].Earthquake Engineering and EngineeringVibration,2004,24(2):75―81.(in Chinese)
[7]刘荣桂,吕志涛,周志勇.预应力开孔梁抗剪配筋设计[J].工业建筑,1998,28(12):17―20.Liu Ronggui,Lu Zhitao,Zhou Zhiyong.Design of theshear reinforcements of the prestressed beams with largeopenings[J].Industrial Construction,1998,28(12):17―20.(in Chinese)
[8]刘荣桂,吕志涛.混凝土(RC/PC)开孔梁实验研究与理论分析[J].土木工程学报,2004,37(7):29―34.Liu Ronggui,Lu Zhitao.Experimental research andtheoretical analysis on reinforced and pre-stressedconcrete beams with large openings[J].China CivilEngineering Journal,2004,37(7):29―34.(in Chinese)
[9]国振喜.简明钢筋混凝土结构构造手册[M].北京:机械工业出版社,2005,1:179―180.Guo Zhenxi.Concise constructed handbook of reinforcedconcrete structure[M].Beijing:Mechanical IndustryPress,2005,1:179―180.(in Chinese)
[10]中华人民共和国标准.CECS39:32钢筋混凝土深梁设计规程[S].北京:中国建筑工业出版社,1993.National standard of the republic of China.CECS39:32Specification for design of reinforced concrete deepbeam[S].Beijing:China Architecture&Building Press,1993.(in Chinese)
[11]中华人民共和国标准.JGJ3-2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002.National Standard of the Republic of China.JGJ3-2002Technical specification for concrete structures of tallbuilding[S].Beijing:China Architecture&BuildingPress,2002.(in Chinese)
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