弯剪破坏钢筋混凝土桥墩的变形能力分析
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摘要
文章整理了美国PEER柱抗震性能试验数据库中发生弯剪破坏的20根矩形截面钢筋混凝土墩柱的拟静力试验数据,识别了屈服位移角和极限位移角作为桥墩变形能力的量化指标,分析了影响弯剪破坏桥墩变形能力的主要因素,并建立各影响因素与变形能力之间的定量关系。结果表明,增大剪跨比、面积配箍率、纵筋配筋率或减小轴压比可增大弯剪破坏墩柱的屈服和极限位移角,对增大极限位移角的效果更明显,其中轴压比对其变形能力的影响最大。
引文
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[17]马颖,孙治国,王东升,等.基于变形能力的钢筋混凝土桥墩约束箍筋用量评价[J].桥梁建设,2014,44(06):57-62.
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[19]Ying Ma,Jin-Xin Gong.Probability Identification of Seismic Failure Modes of Reinforced Concrete Columns based on Experimental Observations[J].Journal of Earthquake Engineering,2018,22(10):1881-1899.
[2]吴波,谢红建.西部地区某水电站工程厂房边坡稳定分析与评价[J].水利规划与设计,2018(07):154-156.
[3]余勇.水电站引水隧洞支护结构稳定性分析[J].水利规划与设计,2018(10):155-158.
[4]Barghi M,Youssefi S.Assessment of deformation capacity of reinforced concrete columns[C].Proceedings of the International Conference on Concrete Construction,London,2009.
[5]Setzler EJ,Sezen H.Model for the lateral behavior of reinforced concrete columns including shear deformations[J].Earthquake Spectra,2008,24(02):493-511.
[6]ASCE/SEI 41-06.Seismic rehabilitation of existing buildings[S].
[7]European standard EN 1998-3 Eurocode 8:design of structures for earthquake resistance-part 3:assessment and retrofitting of buildings[S].
[8]孙治国,王东升,杜修力,等.钢筋混凝土桥墩塑性铰区约束箍筋用量研究[J].中国公路学报,2010,23(03):48-57.
[9]Zhang Q,Gong J X,Ma Y.Seismic shear strength and deformation of RC columns failed in flexural shear[J].Magazine of Concrete Research,2014,66(5):234-248.
[10]Ma Y,Gong J X.Seismic failure modes and deformation capacity of reinforced concrete columns under cyclic loads[J].Periodica Polytechnica-Civil Engineering,2018,62(1):80-91.
[11]Davey B,Park R.Reinforced concrete bridge piers under seismic loading[R].Christchurch:University of Canterbury,1977.
[12]Stone WC,Cheok GS.Inelastic behavior of full-scale bridge columns subjected to inelastic loading[M].Washington D.C.:USDept.of Commerce,National Institute of Standards and Technology,1989.
[13]Sheikh SA,Khoury SS.Confined concrete columns with stubs[J].ACI Structural Journal,1993,90(06):414-414.
[14]东洋一,大久保全陆,仪健一.高轴力作用多次反复循环加载试验[A].日本短柱委员会主编(陕西省建筑设计院编译).防止钢筋混凝土短柱破坏的综合研究[M].北京:地震出版社,1981:226-231.
[15]张明,孟焕陵,沈蒲生.考虑轴压比影响时框架侧移计算的试验及理论研究[J].建筑结构学报,2007,28(06):191-197.
[16]孙伟.弯剪破坏钢筋混凝土桥墩抗震变形能力与配箍要求评价[D].大连海事大学,2011.
[17]马颖,孙治国,王东升,等.基于变形能力的钢筋混凝土桥墩约束箍筋用量评价[J].桥梁建设,2014,44(06):57-62.
[18]王响.钢筋混凝土柱侧向变形和抗震性能分析[D].华南理工大学,2009.
[19]Ying Ma,Jin-Xin Gong.Probability Identification of Seismic Failure Modes of Reinforced Concrete Columns based on Experimental Observations[J].Journal of Earthquake Engineering,2018,22(10):1881-1899.