混凝土空心砌块砌体抗震抗剪强度
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摘要
针对现行《建筑抗震设计规范》(GB 50011-2010)和《砌体结构设计规范》(GB 50003-2001)中关于混凝土空心砌块砌体抗震抗剪设计强度取值上存在的问题,在砌体剪压破坏区理论的基础上,结合中国已有58片混凝土砌块砌体墙的剪压试验结果,提出了具有下降段的剪压复合作用下混凝土空心砌块砌体抗震抗剪强度平均值曲线公式,并推导出具有可靠度保证的混凝土砌块砌体抗震抗剪强度设计值公式。与现行规范相比,提出的抗震抗剪强度设计值公式不仅解决了现行规范间的不统一,而且较好的实现了剪压复合作用下混凝土空心砌块砌体剪摩、剪压和斜压3类破坏形态的模拟,避免了现行规范中混凝土砌块砌体抗震抗剪设计强度取值的不合理和不安全,可运用于高层配筋砌块砌体结构设计。
According to some problems existed in current Chinese codes for design of seismic shear strength of concrete hollow block masonry,the curve of shear strength of concrete hollow block masonry under shear-compression loading,including descent segment,was presented by theory of failure region and test results of 58 concrete block masonry walls under shear-compression loading.And the design seismic shear strength formula of concrete hollow block masonry,which has reliability guarantee,was deduced.Compared with current Chinese codes,the design seismic shear strength formula of concrete hollow block masonry not only can perfectly simulate the shear-friction,shear-compression and diagonal compression failure modes,but also avoid unreasonable and unsafe calculation of seismic shear strength of concrete hollow block masonry,which can be applied to design of tall reinforced concrete masonry structures.
According to some problems existed in current Chinese codes for design of seismic shear strength of concrete hollow block masonry,the curve of shear strength of concrete hollow block masonry under shear-compression loading,including descent segment,was presented by theory of failure region and test results of 58 concrete block masonry walls under shear-compression loading.And the design seismic shear strength formula of concrete hollow block masonry,which has reliability guarantee,was deduced.Compared with current Chinese codes,the design seismic shear strength formula of concrete hollow block masonry not only can perfectly simulate the shear-friction,shear-compression and diagonal compression failure modes,but also avoid unreasonable and unsafe calculation of seismic shear strength of concrete hollow block masonry,which can be applied to design of tall reinforced concrete masonry structures.
引文
[1]施楚贤.砌体结构理论与设计:2版[M].北京:中国建筑工业出版社,2003.
[2]Ahmad A,Hamid and Robert G,Drysdale.Concretemasonry under combined shear and compression alongthe mortar joint[J].ACI Journal,1980,77(5):314-320.
[3]Riddington J R,Ghazali M Z.Hypothesis for shearfailure in masonry joints[C].Proc.Instn Civ.Engrs,part2,1990(3):89-102.
[4]Graubner C A,Kranzler T.Shear design of unreinforcedmasonry panels[C].In:10th Canadian MasonrySymposium.Banff,Alberta,2005,on CD-ROM.
[5]Shieh-Beygi B,Pietruszczak S.Numerical Analysis ofStructural Masonry:Mesoscale Approach[J].Computersand Structures,2008,86:1958-1973.
[6]Andreaus U.Failure criteria for masonry panels underin-plane loading[J].Journal of Structure Engineering,1996(122):37-46.
[7]Mann W,Mǖller H.Failure of shear-stressed masonry-an enlarged theory,tests and application to shear walls[C]//Proc.,British Ceramic Soc.,1982(30):223-235.
[8]蔡勇,施楚贤,马超林,等.砌体在剪-压作用下抗剪强度研究[J].建筑结构学报,2004,25(5):118-123.CAI Yong,SHI Chuxian,MA Chaolin,et al.Study ofthe masonry shear strength under shear-compressionaction[J].Journal of Building Structures,2004,25(5):118-123.
[9]洪峰,王绍博.砌体结构抗震抗剪强度分析[J].地震工程与工程振动,2000,20(3):28-33.HONG Feng,WANG Shaobo.Analysis of earthquakeshear strength of masonry structures[J].EarthquakeEngineering and Engineering Vibration,2000,20(3):28-33.
[10]刘桂秋,施楚贤.平面受力砌体的破坏准则[C]//2000年全国砌体建筑结构学术交流会议论文集.北京:中国建筑工业出版社,2000:19-24.
[11]吕伟荣,施楚贤,刘桂秋.剪压复合作用下砌体的静力与抗震抗剪强度[J].工程力学,2008,25(4):158-164.LU Weirong,SHI Chuxian,LIU Guiqiu.Static andseismic shear strength of masonry under shear-compressionloading[J].Engineering Mechanics,2008,25(4):158-164.
[12]蔡勇.砌体在剪压复合作用下抗震抗剪强度分析[J].建筑结构,2011,41(2):74-77.CAI Yong.Analysis on aseismic shear strength ofmasonry under shear-compression composite action[J].Building Structure,2011,41(2):74-77.
[13]中华人民共和国建设部.GB50003-2001砌体结构设计规范[S].北京:中国建筑工业出版社,2001.
[14]中华人民共和国建设部.GB50011-2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[15]金伟良,岳增国,高连玉.《砌体结构设计规范》的回顾与进展[J].建筑结构学报,2010,31(6):22-28.JIN Weiliang,YUE Zengguo,GAO Lianyu.State-of-the-art development on‘Code for design of masonrystructures’[J].Journal of Building Structures,2010,31(6):22-28.
[16]施楚贤.对砌体结构类型的分析与抗震设计建议[J].建筑结构,2010,40(1):74-76.SHI Chuxian.Analysis for dividing types of masonrystructures and seismic design recommendations[J].Building Structure,2010,40(1):74-76.
[17]李晓文,王庆霖.无筋墙体抗剪计算[C]//2000年全国砌体建筑结构学术交流会议论文集.北京:中国建筑工业出版社,2000:59-65.
[18]骆万康,李锡军.砖砌体剪压复合受力动、静力特性与抗剪强度公式[J].重庆建筑大学学报,2000,22(4):13-19.LUO Wankang,LI Xijun.A study on the response ofbrick masonry structure under dynamic and static shear-compression loading and suggested shearing equation[J].Journal of Chongqing Jianzhu University,2000,22(4):13-19.
[19]梁建国,方亮.混凝土空心砌块砌体抗震抗剪强度研究[J].建筑结构,2009,39(1):45-47.LIANG Jianguo,FANG Liang.Seismic shear strengthof concrete hollow block masonry[J].BuildingStructure,2009,39(1):45-47.
[2]Ahmad A,Hamid and Robert G,Drysdale.Concretemasonry under combined shear and compression alongthe mortar joint[J].ACI Journal,1980,77(5):314-320.
[3]Riddington J R,Ghazali M Z.Hypothesis for shearfailure in masonry joints[C].Proc.Instn Civ.Engrs,part2,1990(3):89-102.
[4]Graubner C A,Kranzler T.Shear design of unreinforcedmasonry panels[C].In:10th Canadian MasonrySymposium.Banff,Alberta,2005,on CD-ROM.
[5]Shieh-Beygi B,Pietruszczak S.Numerical Analysis ofStructural Masonry:Mesoscale Approach[J].Computersand Structures,2008,86:1958-1973.
[6]Andreaus U.Failure criteria for masonry panels underin-plane loading[J].Journal of Structure Engineering,1996(122):37-46.
[7]Mann W,Mǖller H.Failure of shear-stressed masonry-an enlarged theory,tests and application to shear walls[C]//Proc.,British Ceramic Soc.,1982(30):223-235.
[8]蔡勇,施楚贤,马超林,等.砌体在剪-压作用下抗剪强度研究[J].建筑结构学报,2004,25(5):118-123.CAI Yong,SHI Chuxian,MA Chaolin,et al.Study ofthe masonry shear strength under shear-compressionaction[J].Journal of Building Structures,2004,25(5):118-123.
[9]洪峰,王绍博.砌体结构抗震抗剪强度分析[J].地震工程与工程振动,2000,20(3):28-33.HONG Feng,WANG Shaobo.Analysis of earthquakeshear strength of masonry structures[J].EarthquakeEngineering and Engineering Vibration,2000,20(3):28-33.
[10]刘桂秋,施楚贤.平面受力砌体的破坏准则[C]//2000年全国砌体建筑结构学术交流会议论文集.北京:中国建筑工业出版社,2000:19-24.
[11]吕伟荣,施楚贤,刘桂秋.剪压复合作用下砌体的静力与抗震抗剪强度[J].工程力学,2008,25(4):158-164.LU Weirong,SHI Chuxian,LIU Guiqiu.Static andseismic shear strength of masonry under shear-compressionloading[J].Engineering Mechanics,2008,25(4):158-164.
[12]蔡勇.砌体在剪压复合作用下抗震抗剪强度分析[J].建筑结构,2011,41(2):74-77.CAI Yong.Analysis on aseismic shear strength ofmasonry under shear-compression composite action[J].Building Structure,2011,41(2):74-77.
[13]中华人民共和国建设部.GB50003-2001砌体结构设计规范[S].北京:中国建筑工业出版社,2001.
[14]中华人民共和国建设部.GB50011-2010建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.
[15]金伟良,岳增国,高连玉.《砌体结构设计规范》的回顾与进展[J].建筑结构学报,2010,31(6):22-28.JIN Weiliang,YUE Zengguo,GAO Lianyu.State-of-the-art development on‘Code for design of masonrystructures’[J].Journal of Building Structures,2010,31(6):22-28.
[16]施楚贤.对砌体结构类型的分析与抗震设计建议[J].建筑结构,2010,40(1):74-76.SHI Chuxian.Analysis for dividing types of masonrystructures and seismic design recommendations[J].Building Structure,2010,40(1):74-76.
[17]李晓文,王庆霖.无筋墙体抗剪计算[C]//2000年全国砌体建筑结构学术交流会议论文集.北京:中国建筑工业出版社,2000:59-65.
[18]骆万康,李锡军.砖砌体剪压复合受力动、静力特性与抗剪强度公式[J].重庆建筑大学学报,2000,22(4):13-19.LUO Wankang,LI Xijun.A study on the response ofbrick masonry structure under dynamic and static shear-compression loading and suggested shearing equation[J].Journal of Chongqing Jianzhu University,2000,22(4):13-19.
[19]梁建国,方亮.混凝土空心砌块砌体抗震抗剪强度研究[J].建筑结构,2009,39(1):45-47.LIANG Jianguo,FANG Liang.Seismic shear strengthof concrete hollow block masonry[J].BuildingStructure,2009,39(1):45-47.
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