高强箍筋高强混凝土墩柱弯剪数值分析模型
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
在高强混凝土墩柱中配置高强度约束箍筋可有效提高其抗震能力,本文发展了适用于高强箍筋高强混凝土墩柱滞回性能模拟的弯剪数值分析模型。在普通钢筋混凝土墩柱弯剪数值分析模型的基础上,对22个具有典型弯剪破坏特征的高强箍筋高强混凝土柱试验结果进行分析,验证了Elwood剪切破坏面对高强箍筋高强混凝土墩柱的适用性。基于Open Sees数值分析平台建立了墩柱的弯剪数值分析模型,使用Elwood剪切破坏面监测墩柱的剪切破坏时刻。模拟了6个发生弯剪破坏的高强箍筋高强混凝土墩柱滞回曲线,并与试验结果进行对比。结果表明,模拟滞回曲线与试验结果吻合良好,数值模型对高强箍筋高强混凝土墩柱的强度、变形能力、残余位移等具有较好的模拟精度。模拟得到的弯曲、剪切及纵筋拔出等各变形成分也与试件的弯剪破坏特征吻合。
The seismic performance of high strength concrete( HSC) columns could be improved by using high strength stirrups( HSS). A flexure-shear analysis model to simulate the hysteretic behavior of HSC columns using HSS was developed. Based on the flexure-shear analysis model for columns with normal strength concrete and stirrups,an analysis was conducted for 22 test results of HSC columns using HSS failed in flexure-shear modes. And applicability of Elwood shear failure surface for HSC columns using HSS was verified. The flexure-shear analysis model for columns was built on the basis of Open Sees platform,in which the shear failure of HSC columns using HSS was monitored by Elwood shear failure surface. 6 HSC columns with HSS appearing flexure-shear failure mode were modeled,and the simulated hysteretic curves were compared with test results. It is found that the simulated hysteretic curves agreed well with test results. The flexure-shear analysis model has a high accuracy for HSC columns with HSS in modeling strength,deformation capacity and residual displacement. The simulated flexure,shear and longitudinal bar slip displacement components of the columns agreed well with the flexure-shear failure mode of the specimens.
引文
[1]Xiao Y,Yun H W.Experimental studies on full-scale high-strength concrete columns[J].ACI Structural Journal,2002,99(2):199-207.
    [2]Légeron F,Paultre P.Behavior of high-strength concrete columns under cyclic flexure and constant axial load[J].ACI Structural Journal,2000,97(4):591-601.
    [3]司炳君,孙治国,王东升,等.高强箍筋约束高强混凝土柱抗震性能研究综述[J].土木工程学报,2009,42(4):1-9.SI Bingjun,SUN Zhiguo,WANG Dongsheng,et al.Review of studies on the seismic behavior of high strength concrete columns with high strength transverse reinforcement[J].China Civil Engineering Journal,2009,42(4):1-9.(in Chinese)
    [4]史庆轩,杨坤,白力更,等.高强箍筋约束高强混凝土柱抗震性能试验研究[J].土木工程学报,2011,44(12):9-17.SHI Qingxuan,YANG Kun,BAI Ligeng,et al.Experiments on seismic behavior of high-strength concrete columns confined with high-strength stirrups[J].China Civil Engineering Journal,2011,44(12):9-17.(in Chinese)
    [5]ACI-ASCE Committee 441.High-strength concrete columns:State of the Art[J].ACI Structural Journal,1997,94(3):323-335.
    [6]孙治国,司炳君,王东升,等.高强箍筋高强混凝土柱抗震性能研究[J].工程力学,2010,27(5):128-136.SUN Zhiguo,SI Bingjun,WANG Dongsheng,et al.Research on the seismic performance of high-strength concrete columns with high-strength stirrups[J].Engineering Mechanics,2010,27(5):128-136.(in Chinese)
    [7]史庆轩,杨文星,王秋维,等.高强箍筋高强混凝土短柱抗震性能试验研究[J].建筑结构学报,2012,33(9):49-58.SHI Qingxuan,YANG Wenxing,WANG Qiuwei,et al.Experimental research on seismic behavior of high-strength concrete short columns with high-strength stirrups[J].Journal of Building Structures,2012,33(9):49-58.(in Chinese)
    [8]Xiao Y,Martirossyan A.Seismic performance of high-strength concrete columns[J].Journal of Structural Engineering,ASCE,1998,124(3):241-251.
    [9]王全凤,沈章春,杨勇新,等.HRB400级钢筋混凝土短柱抗震试验研究[J].建筑结构学报,2008,29(2):114-117.WANG Quanfeng,SHEN Zhangchun,YANG Yongxin,et al.Seismic behavior of HRB400 reinforcement concrete short columns[J].Journal of Building Structures,2008,29(2):114-117.(in Chinese)
    [10]姜睿.超高强混凝土组合柱抗震性能的试验研究[D].大连:大连理工大学,2007.JIANG Rui.Experimental study on seismic performance of reinforced super-high-strength concrete composite columns[D].Dalian:Dalian University of Technology,2007.(in Chinese)
    [11]Lee D H,Elnashai A S.Seismic analysis of RC bridge columns with flexure-shear interaction[J].Journal of Structural Engineering,ASCE,2001,127(5):546-553.
    [12]Elwood K J.Modelling failures in existing reinforced concrete columns[J].Canadian Journal of Civil Engineering,2004,31(5):846-859.
    [13]Sezen H,Chowdhury T.Hysteretic model for reinforced concrete columns including the effect of shear and axial load failure[J].Journal of Structural Engineering,ASCE,2009,135(2):139-146.
    [14]Leborgne M R.Modeling the post shear failure behavior of reinforced concrete columns[D].Austin:The University of Texas at Austin,2012.
    [15]Ozcebe G,Saatcioglu M.Hysteretic shear model for reinforced concrete members[J].Journal of Structural Engineering,ASCE,1989,115(1):132-148.
    [16]Elwood K J,Moehle J P.Drift capacity of reinforced concrete columns with light transverse reinforcement[J].Earthquake Spectra,2005,21(1):71-89.
    [17]Sezen H,Moehle J P.Shear strength model for lightly reinforced concrete columns[J].Journal of Structural Engineering,ASCE,2004,130(11):1692-1703.
    [18]Elwood K J,Moehle J P.Dynamic collapse analysis fora reinforced concrete frame sustaining shear and axial failures[J].Earthquake Engineering and Structural Dynamics,2008,37(7):991-1012.
    [19]Elwood K J,Moehle J P.Axial capacity model for shear-damaged columns[J].ACI Structural Journal,2005,102(4):578-587.
    [20]李忠献,李杨,李宁.RC桥墩抗震性能分析模型与验证[J].地震工程与工程振动,2014,34(1):71-80.LI Zhongxian,LI Yang,LI Ning.Seismic analysis model of RC bridge piers:simulation and verification[J].Earthquake Engineeering and Engineering Dynamics,2014,34(1):71-80.(in Chinese)
    [21]Bentz E V,Vecchio F J,Collins M P.Simplified modified compression field theory for calculating shear strength of reinforced concrete elements[J].ACI Structural Journal,2006,103(4):614-624.
    [22]Zhao J,Sritharan S.Modeling of strain penetration effects in fiber-based analysis of reinforced concrete structures[J].ACI Structural Journal,2007,104(2):133-141.
    [23]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(3):48-57.SUN Zhiguo,WANG Dongsheng,DU Xiuli,et al.Research on amount of confining reinforcement in potential plastic hinge regions of RC bridge columns[J].China Journal of Highway and Transport,2010,23(3):48-57.(in Chinese)
    [24]Lehman D E,Moehle J P.Seismic performance of well-confined concrete bridge columns[R].PEER Report,Pacific Earthquake Engineering Research Center,College of Engineering,University of California,Berkeley,2000.
    [25]Sezen H,Moehle J P.Seismic tests of concrete columns with light transverse reinforcement[J].ACI Structural Journal,2006,103(6):842-849.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心