桩基托换中钢管混凝土柱壁抗滑移有限元分析
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摘要
利用ABAQUS软件对厦门火车站南北站厅连接通道的托换过程中上部钢管混凝土柱壁滑移的情况进行了模拟。分别对纯栓钉、栓钉+环板、栓钉+环板+加劲板三种情况进行分析,并与试验数据进行了比较。结果表明:在钢管混凝土柱壁抗剪切滑移性能中环板起到主要作用,而栓钉不起主要作用;加劲板的作用也有限,只能提高少量抗滑移承载力;柱壁抗剪切滑移位移主要取决于上部钢管的承载力。
With the use of ABAQUS software,the slippage of the upper concrete-filled steel tubecolumn walls was simulated for the underpinning project of the connection tunnel between the Northand South Hall of Xiamen Railway Station,in which three cases of pure studs,studs+annular platesand studs+annular plates+stiffened plates were analyzed respectively.And the simulated results werecompared with the testing data.The analytical results show that the annular plate plays a major role inanti-slip capability of concrete-filled steel tube columns while the stud does not;similarly,stiffenedplates play a limited role in merely enhancing little anti-slip bearing capacity;the anti-slip displacement of the column wall mainly depends on the bearing capacity of the upper steel pipe.
With the use of ABAQUS software,the slippage of the upper concrete-filled steel tubecolumn walls was simulated for the underpinning project of the connection tunnel between the Northand South Hall of Xiamen Railway Station,in which three cases of pure studs,studs+annular platesand studs+annular plates+stiffened plates were analyzed respectively.And the simulated results werecompared with the testing data.The analytical results show that the annular plate plays a major role inanti-slip capability of concrete-filled steel tube columns while the stud does not;similarly,stiffenedplates play a limited role in merely enhancing little anti-slip bearing capacity;the anti-slip displacement of the column wall mainly depends on the bearing capacity of the upper steel pipe.
引文
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[2]刘永健,刘君平,郭永平,等.钢管混凝土界面粘结滑移性能[J].长安大学学报(自然科学版),2007(2):53.
[3]TAO Z,SONG T Y,UY B,et al.Bond behavior in concrete-filled steel tubes[J].Journal of Constructional Steel Research,2016,120(4):81.
[4]陈宝春,陈津凯.钢管混凝土内栓钉抗剪承载力试验研究[J].工程力学,2016,33(2):66.
[5]陈津凯,陈宝春,刘君平.钢管混凝土多排多列内栓钉受剪性能[J].工程力学,2017,34(6):178.
[6]陈宝春,韦建刚,吴庆雄.钢管混凝土桁式结构内栓钉节点及其施工方法:CN102359188A[P].2012-02-22.
[7]李小刚,童根树.考虑抗滑移刚度的钢管混凝土柱的荷载传递[J].工程力学,2017,34(11):89.
[8]马腾.钢管混凝土界面粘结强度试验研究[D].南昌:华东交通大学,2013.
[9]袁方.钢管混凝土界面粘结性能的试验研究[D].南昌:华东交通大学,2010.
[10]池建军.钢管混凝土界面抗剪粘结性能的试验研究与有限元分析[D].长沙:长沙理工大学,2004.
[11]QU X S,CHEN Z H,NETHERCOT D A.Load-reversed push-out tests on rectangular CFST columns[J].Journal of Constructional Steel Research,2013,81(1):35.
[12]陈天虹,谢狄敏,张成龙.静压管桩偏位、开裂问题处理浅析[J].浙江科技学院学报,2006,18(2),103.
[13]薛立红,蔡绍怀.钢管混凝土柱组合界面的粘结强度(上)[J].建筑科学,1996(3):22.
[14]薛立红,蔡绍怀.钢管混凝土柱组合界面的粘结强度(下)[J].建筑科学,1996(4):19.
[15]刘永健,池建军.钢管混凝土界面抗剪粘结强度的推出试验[J].工业建筑,2006(4):78.
[16]钱稼茹,赵作周,纪晓东.钢管与管外混凝土界面粘结抗剪能力试验研究[J].建筑结构,2015,45(3):12.
[17]何骏炜.既有建筑物托换框架性能研究[D].杭州:浙江科技学院,2017.