现浇板框架结构“强柱弱梁”屈服机制的研究现状
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摘要
"强柱弱梁"破坏机制是我国抗震规范对框架结构在地震作用下要实现的理想破坏模式,而在汶川地震中大多数带现浇板框架结构的破坏模式为"强梁弱柱"。因此应当重视对带现浇板框架结构形成的"强柱弱梁"的破坏机制的研究。介绍了《建筑抗震设计规范》中有关"强柱弱梁"的规定及其存在的问题,分析现浇板对框架"强柱弱梁"屈服机制的影响并对相应的研究成果进行了分析评述,并探讨了该类问题的研究方向。
"Strong column-weak beam" is the ideal failure mode for frame structures,which is recommended by Chinese Specifications.Most of the RC frames with cast in-situ slabs were damaged due to column plastic hinges during Wenchuan earthquake.The "strong column-weak beam" yield mechanism is questioned.Firstly,the insurance methods of "strong column-weak beam" in "Code for seismic design of buildings" and its weak points are introduced in this paper,the slab affection of "strong column-weak beam" is analyzed then,the results of existing researches on "strong beam-weak column" are summarized,the defects of the researches are deeply analyzed and the prospect of this problem is discussed at last.
"Strong column-weak beam" is the ideal failure mode for frame structures,which is recommended by Chinese Specifications.Most of the RC frames with cast in-situ slabs were damaged due to column plastic hinges during Wenchuan earthquake.The "strong column-weak beam" yield mechanism is questioned.Firstly,the insurance methods of "strong column-weak beam" in "Code for seismic design of buildings" and its weak points are introduced in this paper,the slab affection of "strong column-weak beam" is analyzed then,the results of existing researches on "strong beam-weak column" are summarized,the defects of the researches are deeply analyzed and the prospect of this problem is discussed at last.
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 L P,Qu Z,Ma Q L,et al.Study on ensuring thestrong column-weak beam mechanism for RC framesbased on the damage analysis in the Wenchuanearthquake[J].Building Structure,2008,38(11):52-59.(in Chinese)
[2]中华人民共和国建设部.GB 50011—2001混凝土抗震设计规范[S].北京:中国建筑工业出版社,2001.Ministry of Construction of the People’s Republic ofChina.GB 50011—2001 Code for design ofconcrete structures[S].Beijing:China Architectureand Building Press,2001.(in Chinese)
[3]车轶,尤杰.中欧抗震设计规范关于“强柱弱梁”设计比较[J].大连理工大学学报,2009,49(5):758-763.Che Y,You J.Comparison of“strong column-weakbeam”design between Chinese seismic design codeGB 50010—2001 and Eurocode EN 199821[J].Journal of Dalian Technology University,2009,49(5):758-763.(in Chinese)
[4]蒋永生,陈忠范,周绪平,等.整浇梁板的框架节点抗震研究[J].建筑结构学报,1994,15(6):11-16.Jiang Y S,Chen Z F,Zhou X P,et al.Study onseismic of beam-slab joints[J].Journal of BuildingStructure,1994,15(6):11-16.(in Chinese)
[5]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.Zheng S J,Jiang L X,Zhang W P,et al.Experimentalresearch and analysis of effective width of beam endsection in cast-in-situ concrete frames[J].StructuralEngineers,2009,25(2):134-140.(in Chinese)
[6]Yang X L,Xue W C.Full-scale tests of beam-column-slab joints under reversed-cyclic loading[C]∥Proceedings of the innovation and sustainability ofstructures,2008,1-2:824-831.
[7]Catherine Wolfgram French,Alireza Boroojerdi.Contribution of R/C floor slabs in resisting lateralloads[J].Journal of Structural Engineering,1989,115(1).
[8]Durrani A J,Wight J K.Earthquake Resistance ofReinforced Concrete Interior Connections Including aFloor Slab[J].ACI Structure Journal,1987:400-406.
[9]Ehsani M R,Wight J K.Effect of Transverse Beamsand Slab on Behavior of Reinforced Concrete Beam-to-Column Connections[J].ACI Journal Proceedings,1985,82(2):188-195.
[10]Zerbe HE,Durrani A J.Seismic Response ofConnections in Two-Bay Reinforced Concrete FrameSubassemblies with a Floor Slab[J].ACI StructureJournal,1990:406-415.
[11]Qi X,Pantazopoulou S J.Response of RC Frame underLateral Loads[J].J Struct Engrg,1991,117(4):1167-1188.
[12]林旭川,潘鹏,叶列平,等.汶川地震中典型RC框架的震害与仿真分析[M]∥汶川地震建筑震害调查与灾后重建分析报告.北京:中国建筑工业出版社,2008:253-262.Lin X C,Pan P,Ye L P,et al.Failures simulation oftypical RC frame in Wenchuan earthquake[M]∥Reports of Wechuan earthquake:research andanalysis.Beijing:China Architecture and BuildingPress,2008:253-262.(in Chinese)
[13]马千里,叶列平,陆新征,等.现浇楼板对框架结构柱梁强度比的影响研究[M]∥汶川地震建筑震害调查与灾后重建分析报告.北京:中国建筑工业出版社,2008:263-271.Ma Q L,Ye L P,Lu X Z,et al.Study on the slabaffections on column-beam strength ratio[M]∥Reports of Wechuan earthquake:research andanalysis.Beijing:China Architecture and BuildingPress,2008:263-271.(in Chinese)
[14]苏幼坡,张玉敏,王绍杰.从汶川地震看提高建筑结构抗倒塌能力的必要性和可靠性[J].土木工程学报,2009,42(5):25-31.Su Y P,Zhang Y M,Wang S J.The necessity andfeasibility of enhancing seismic design of structuresbased on the Wenchuan earthquake[J].China CivilEngineering Journal,2009,42(5):25-31.(inChinese)
[15]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].地震工程与振动,2005,25(5):117-123.Guan M S,Du H B.Pushover analysis of effect ofcasting slab on RC frame structure[J].EarthquakeEngineering and Engineering Vibration,2005,25(5):117-123.(in Chinese)
[16]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,2009,31(1):66-71.Wang S S,Han X L,Ji J.The Effect of Slabs on theFailure Mode of Reinforced Concrete Frame Structures[J].Journal of Civil,Architectural&EnvironmentalEngineering,2009,31(1):66-71.(in Chinese)
[17]陈立保,陈明祥,高作平.主厂房空间框架中考虑楼板作用的有限元分析[J].工业建筑,2005,35(S1):420-422.Chen L B,Chen M X,Gao Z P.FEM Analysis forPlate Effect in Spatial Frame of Main Workshop[J].Industry Structural,2005,35(S1):420-422.(inChinese)
[18]Shahrooz B M,Pantazopoulou S J,Chern S P.Modeling slab contribution in frame connection[J].Journal of Structural Engineering,1992,118(9).
[19]Pantazopoulou S J,Moehle J P,Shahrooz B M.Simpleanalytical model for T-beams in flexure[J].Journal ofStructural Engineering,1988,114(7).
[20]Pantazopoulou S J,Moehle J P.Truss model for 3-Dbehavior of RC exterior connections[J].Journal ofStructural Engineering,1990,116(2).
[21]Pantazopoulou S J,Moehle J P.Identification of effectof slabs on flexural behavior of beams[J].Journal ofStructural Engineering,1990,116(1).
[22]same Yal in,Ahmad J Durrani.Effect of slab oninelastic response of R/C building[J].Journal ofStructural Engineering,1993,119(5).
[2]中华人民共和国建设部.GB 50011—2001混凝土抗震设计规范[S].北京:中国建筑工业出版社,2001.Ministry of Construction of the People’s Republic ofChina.GB 50011—2001 Code for design ofconcrete structures[S].Beijing:China Architectureand Building Press,2001.(in Chinese)
[3]车轶,尤杰.中欧抗震设计规范关于“强柱弱梁”设计比较[J].大连理工大学学报,2009,49(5):758-763.Che Y,You J.Comparison of“strong column-weakbeam”design between Chinese seismic design codeGB 50010—2001 and Eurocode EN 199821[J].Journal of Dalian Technology University,2009,49(5):758-763.(in Chinese)
[4]蒋永生,陈忠范,周绪平,等.整浇梁板的框架节点抗震研究[J].建筑结构学报,1994,15(6):11-16.Jiang Y S,Chen Z F,Zhou X P,et al.Study onseismic of beam-slab joints[J].Journal of BuildingStructure,1994,15(6):11-16.(in Chinese)
[5]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.Zheng S J,Jiang L X,Zhang W P,et al.Experimentalresearch and analysis of effective width of beam endsection in cast-in-situ concrete frames[J].StructuralEngineers,2009,25(2):134-140.(in Chinese)
[6]Yang X L,Xue W C.Full-scale tests of beam-column-slab joints under reversed-cyclic loading[C]∥Proceedings of the innovation and sustainability ofstructures,2008,1-2:824-831.
[7]Catherine Wolfgram French,Alireza Boroojerdi.Contribution of R/C floor slabs in resisting lateralloads[J].Journal of Structural Engineering,1989,115(1).
[8]Durrani A J,Wight J K.Earthquake Resistance ofReinforced Concrete Interior Connections Including aFloor Slab[J].ACI Structure Journal,1987:400-406.
[9]Ehsani M R,Wight J K.Effect of Transverse Beamsand Slab on Behavior of Reinforced Concrete Beam-to-Column Connections[J].ACI Journal Proceedings,1985,82(2):188-195.
[10]Zerbe HE,Durrani A J.Seismic Response ofConnections in Two-Bay Reinforced Concrete FrameSubassemblies with a Floor Slab[J].ACI StructureJournal,1990:406-415.
[11]Qi X,Pantazopoulou S J.Response of RC Frame underLateral Loads[J].J Struct Engrg,1991,117(4):1167-1188.
[12]林旭川,潘鹏,叶列平,等.汶川地震中典型RC框架的震害与仿真分析[M]∥汶川地震建筑震害调查与灾后重建分析报告.北京:中国建筑工业出版社,2008:253-262.Lin X C,Pan P,Ye L P,et al.Failures simulation oftypical RC frame in Wenchuan earthquake[M]∥Reports of Wechuan earthquake:research andanalysis.Beijing:China Architecture and BuildingPress,2008:253-262.(in Chinese)
[13]马千里,叶列平,陆新征,等.现浇楼板对框架结构柱梁强度比的影响研究[M]∥汶川地震建筑震害调查与灾后重建分析报告.北京:中国建筑工业出版社,2008:263-271.Ma Q L,Ye L P,Lu X Z,et al.Study on the slabaffections on column-beam strength ratio[M]∥Reports of Wechuan earthquake:research andanalysis.Beijing:China Architecture and BuildingPress,2008:263-271.(in Chinese)
[14]苏幼坡,张玉敏,王绍杰.从汶川地震看提高建筑结构抗倒塌能力的必要性和可靠性[J].土木工程学报,2009,42(5):25-31.Su Y P,Zhang Y M,Wang S J.The necessity andfeasibility of enhancing seismic design of structuresbased on the Wenchuan earthquake[J].China CivilEngineering Journal,2009,42(5):25-31.(inChinese)
[15]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].地震工程与振动,2005,25(5):117-123.Guan M S,Du H B.Pushover analysis of effect ofcasting slab on RC frame structure[J].EarthquakeEngineering and Engineering Vibration,2005,25(5):117-123.(in Chinese)
[16]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,2009,31(1):66-71.Wang S S,Han X L,Ji J.The Effect of Slabs on theFailure Mode of Reinforced Concrete Frame Structures[J].Journal of Civil,Architectural&EnvironmentalEngineering,2009,31(1):66-71.(in Chinese)
[17]陈立保,陈明祥,高作平.主厂房空间框架中考虑楼板作用的有限元分析[J].工业建筑,2005,35(S1):420-422.Chen L B,Chen M X,Gao Z P.FEM Analysis forPlate Effect in Spatial Frame of Main Workshop[J].Industry Structural,2005,35(S1):420-422.(inChinese)
[18]Shahrooz B M,Pantazopoulou S J,Chern S P.Modeling slab contribution in frame connection[J].Journal of Structural Engineering,1992,118(9).
[19]Pantazopoulou S J,Moehle J P,Shahrooz B M.Simpleanalytical model for T-beams in flexure[J].Journal ofStructural Engineering,1988,114(7).
[20]Pantazopoulou S J,Moehle J P.Truss model for 3-Dbehavior of RC exterior connections[J].Journal ofStructural Engineering,1990,116(2).
[21]Pantazopoulou S J,Moehle J P.Identification of effectof slabs on flexural behavior of beams[J].Journal ofStructural Engineering,1990,116(1).
[22]same Yal in,Ahmad J Durrani.Effect of slab oninelastic response of R/C building[J].Journal ofStructural Engineering,1993,119(5).
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