楼板对钢筋砼异形柱框架破坏机制的影响分析
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摘要
采用基于柔度法的纤维模型梁柱单元,对按现行混凝土异形柱结构技术规程设计的异形柱框架结构,分别按考虑和忽略现浇楼板及其钢筋对梁抗弯能力的增强作用2种情况,分别进行了单向水平罕遇地震输入下的空间结构弹塑性动力分析。对比分析结果表明,现浇楼板及其钢筋将提高框架梁的抗弯能力,从而改变罕遇地震作用下混凝土异形柱结构的破坏模式,对于高烈度区混凝土异形柱结构影响尤为明显,因此该类结构在抗震设计中必须考虑现浇楼板及其钢筋的影响。
With the flexibility-based fiber model,the seismic behaviors of RC structures with specially shaped columns,designed according to the current code,are analyzed under unidirectional rare earthquakes using nonlinear dynamic analysis method.The beam strength is calculated with or without consideration of the diaphragm and its reinforcement.The results are compared and the conclusion has been drawn that the bending capacity of beams would be increased due to the effect of diaphragm and its reinforcement,and which would change the failure mechanism of RC frames under rare earthquake,especially in high intensity areas.Therefore the influence of the diaphragm should be considered during the seismic design of the type of structure.
With the flexibility-based fiber model,the seismic behaviors of RC structures with specially shaped columns,designed according to the current code,are analyzed under unidirectional rare earthquakes using nonlinear dynamic analysis method.The beam strength is calculated with or without consideration of the diaphragm and its reinforcement.The results are compared and the conclusion has been drawn that the bending capacity of beams would be increased due to the effect of diaphragm and its reinforcement,and which would change the failure mechanism of RC frames under rare earthquake,especially in high intensity areas.Therefore the influence of the diaphragm should be considered during the seismic design of the type of structure.
引文
[1]叶列平,曲哲,马千里,等.从汶川地震框架结构震害谈"强柱弱梁"屈服机制的实现[J].建筑结构,2008,38(11):52-59.YE LIE-PING,QU ZHE,MA QIAN-LI,et al.Study on ensuring the strong column-weak beam mechanism for RCframes based on the damage analysis in the Wenchuan earthquake[J].Building Structure,2008,38(11):52-59.
[2]王亚勇.汶川地震建筑物震害启示--抗震概念设计[J].建筑结构学报,2008,29(4):20-22.WANG YA-YONG.Lessons learnt from building damages in the Wenchuan earthquake-seismic concept design of buildings[J].Journal of Building Structures,2008,29(4):20-22.
[3]苏幼坡,张玉敏,王绍杰,等.从汶川地震看提高建筑结构抗倒塌能力的必要性和可行性[J].土木工程学报,2009,42(5):25-32.SU YOU-PO,ZHANG YU-MIN,WANG SHAO-JIE,et al.The necessary and feasibility of enhancing seismic design of structures based on the Wenchuan Earthquake[J].China Civil Engineering Journal,2009,42(5):25-32.
[4]霍林生,李宏男,肖诗云,等.汶川地震钢筋混凝土框架结构震害调查与启示[J].大连理工大学学报,2009,49(5):718-723.HUO LIN-SHENG,LI HONG-NAN,XIAO SHI-YUN,et al.Earthquake damage investigation and analysis of reinforced concrete frame structures in Wenchuan earthquake[J].Journal of Dalian University of Technology,2009,49(5):718-723.
[5]FRENCH C W,MOEHLE J P.Effect of floor slab on behavior of slab-beam-column connections[J].American Concrete Institute Special Publication,1991,123:225-258.
[6]FILIPPOU F C,POPOV E P,BERTERO V V.Effects of bond deterioration on hysteretic behavior of reinforced concrete joints[R].EERC report,University of California at Berkeley,1983.
[7]LAU C Y,CHAN S L,SO A K W.Biaxial bending design of arbitrarily shaped reinforced concrete column[J].ACI Structural Journal,1993,90(3):269-278.
[8]郑士举,蒋利学,张伟平,等.现浇混凝土框架梁端截面有效翼缘宽度的试验研究与分析[J].结构工程师,2009,25(2):134-140.ZHENGSHI-JU,JIANG LI-XUE,ZHANG WEI-PING.et al.Experi mental research and analysis of effective flange width of beamend sectionin cast-situ concrete frames[J].Structural Engineers,2009,25(2):134-140
[9]王素裹,韩小雷,季静.现浇楼板对RC框架结构破坏形式的影响分析[J].土木建筑与环境工程,2009,31(1):66-70.WANG SU-GUO,HAN XIAO-LEI,JI JING.The effect slabs on the failure mode of reinforced concrete frame structures[J].Journal of Civil,Architectural&Environmental Engineering,2009,31(1):66-70.
[10]吴勇,雷汲川,杨红,等.板筋参与梁端负弯矩承载力问题的探讨[J].重庆建筑大学学报,2002,24(3):33-37.WU YONG,LEI JI-CHUAN,YANG HONG,et al.Discussion on negative flexural strength of beamincluding slabs[J].Journal of Chongqing Jianzhu University,2002,24(3):33-37.
[11]JGJ149-2006混凝土异形柱结构技术规程[S].北京:中国建筑工业出版社,2006.
[12]杨溥,唐剑,黄宗明.规则钢筋混凝土异形柱框架结构的抗震性能研究[J].地震工程与工程振动,2006,26(3):145-147.YANG PU,TANG JIAN,HUANG ZONG-MING.Study on seismic performance of regular RCframe with special-shaped columns[J].Earthquake Engineering and Engineering Vibration,2006,26(3):145-147
[13]杨溥,李英民,赖明.结构时程分析法输入地震波的选择控制指标[J].土木工程学报,2000,33(6):33-37.YANG PU,LI YING-MIN,LAI MING.A new method for selecting inputting waves for ti me-history analysis[J].China Civil Engineering Journal,2000,33(6):33-37.
[14]管民生,杜宏彪.现浇楼板参与工作后框架结构的pushover分析研究[J].地震工程与工程振动,2005,25(5):117-123.GUAN MIN-SHENG,DU HONG-BIAO.Pushover analysis of effect of casting slab on RC frame structure[J].Earthquake Engineering and Engineering Vibration,2005,25(5):117-123.
[15]PANTAZOPOULOU S J,FRENCHC W.Slab participation in practical earthquake design of reinforced concrete frame[J].ACI Structural Journal,2001,98(4):479-489.
[16]IBC2006International Building Code[S].Country Club Hills,Illinois,USA:International Code Council,INC.,2006.
[17]ACI318-08Building code requirements for structural concrete and commentary[S].Farmington Hills,Michigan,USA:American Concrete Institute,2007.
[18]LEE HS,WOO S W.Effect of masonryinfill on seismic performance of a3-storey RC frame with non-seismic detailing[J].Earthquake Engineering and Structural Dynamics,2002,31(2):353-378.
[19]FREDERIC LEGERON,PATRICK PAULTRE.Behavior of high-strength concrete columns under cyclic flexure and constant axial load[J].ACI Structural Journal,2000,97(4):591-601.
[20]CARDONE D.Nonlinear static methods vs.experi mental shaking table test results[J].Journal of Earthquake Engineering,2007,11(6):847-875.
[2]王亚勇.汶川地震建筑物震害启示--抗震概念设计[J].建筑结构学报,2008,29(4):20-22.WANG YA-YONG.Lessons learnt from building damages in the Wenchuan earthquake-seismic concept design of buildings[J].Journal of Building Structures,2008,29(4):20-22.
[3]苏幼坡,张玉敏,王绍杰,等.从汶川地震看提高建筑结构抗倒塌能力的必要性和可行性[J].土木工程学报,2009,42(5):25-32.SU YOU-PO,ZHANG YU-MIN,WANG SHAO-JIE,et al.The necessary and feasibility of enhancing seismic design of structures based on the Wenchuan Earthquake[J].China Civil Engineering Journal,2009,42(5):25-32.
[4]霍林生,李宏男,肖诗云,等.汶川地震钢筋混凝土框架结构震害调查与启示[J].大连理工大学学报,2009,49(5):718-723.HUO LIN-SHENG,LI HONG-NAN,XIAO SHI-YUN,et al.Earthquake damage investigation and analysis of reinforced concrete frame structures in Wenchuan earthquake[J].Journal of Dalian University of Technology,2009,49(5):718-723.
[5]FRENCH C W,MOEHLE J P.Effect of floor slab on behavior of slab-beam-column connections[J].American Concrete Institute Special Publication,1991,123:225-258.
[6]FILIPPOU F C,POPOV E P,BERTERO V V.Effects of bond deterioration on hysteretic behavior of reinforced concrete joints[R].EERC report,University of California at Berkeley,1983.
[7]LAU C Y,CHAN S L,SO A K W.Biaxial bending design of arbitrarily shaped reinforced concrete column[J].ACI Structural Journal,1993,90(3):269-278.
[8]郑士举,蒋利学,张伟平,等.现浇混凝土框架梁端截面有效翼缘宽度的试验研究与分析[J].结构工程师,2009,25(2):134-140.ZHENGSHI-JU,JIANG LI-XUE,ZHANG WEI-PING.et al.Experi mental research and analysis of effective flange width of beamend sectionin cast-situ concrete frames[J].Structural Engineers,2009,25(2):134-140
[9]王素裹,韩小雷,季静.现浇楼板对RC框架结构破坏形式的影响分析[J].土木建筑与环境工程,2009,31(1):66-70.WANG SU-GUO,HAN XIAO-LEI,JI JING.The effect slabs on the failure mode of reinforced concrete frame structures[J].Journal of Civil,Architectural&Environmental Engineering,2009,31(1):66-70.
[10]吴勇,雷汲川,杨红,等.板筋参与梁端负弯矩承载力问题的探讨[J].重庆建筑大学学报,2002,24(3):33-37.WU YONG,LEI JI-CHUAN,YANG HONG,et al.Discussion on negative flexural strength of beamincluding slabs[J].Journal of Chongqing Jianzhu University,2002,24(3):33-37.
[11]JGJ149-2006混凝土异形柱结构技术规程[S].北京:中国建筑工业出版社,2006.
[12]杨溥,唐剑,黄宗明.规则钢筋混凝土异形柱框架结构的抗震性能研究[J].地震工程与工程振动,2006,26(3):145-147.YANG PU,TANG JIAN,HUANG ZONG-MING.Study on seismic performance of regular RCframe with special-shaped columns[J].Earthquake Engineering and Engineering Vibration,2006,26(3):145-147
[13]杨溥,李英民,赖明.结构时程分析法输入地震波的选择控制指标[J].土木工程学报,2000,33(6):33-37.YANG PU,LI YING-MIN,LAI MING.A new method for selecting inputting waves for ti me-history analysis[J].China Civil Engineering Journal,2000,33(6):33-37.
[14]管民生,杜宏彪.现浇楼板参与工作后框架结构的pushover分析研究[J].地震工程与工程振动,2005,25(5):117-123.GUAN MIN-SHENG,DU HONG-BIAO.Pushover analysis of effect of casting slab on RC frame structure[J].Earthquake Engineering and Engineering Vibration,2005,25(5):117-123.
[15]PANTAZOPOULOU S J,FRENCHC W.Slab participation in practical earthquake design of reinforced concrete frame[J].ACI Structural Journal,2001,98(4):479-489.
[16]IBC2006International Building Code[S].Country Club Hills,Illinois,USA:International Code Council,INC.,2006.
[17]ACI318-08Building code requirements for structural concrete and commentary[S].Farmington Hills,Michigan,USA:American Concrete Institute,2007.
[18]LEE HS,WOO S W.Effect of masonryinfill on seismic performance of a3-storey RC frame with non-seismic detailing[J].Earthquake Engineering and Structural Dynamics,2002,31(2):353-378.
[19]FREDERIC LEGERON,PATRICK PAULTRE.Behavior of high-strength concrete columns under cyclic flexure and constant axial load[J].ACI Structural Journal,2000,97(4):591-601.
[20]CARDONE D.Nonlinear static methods vs.experi mental shaking table test results[J].Journal of Earthquake Engineering,2007,11(6):847-875.
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