圆形钢管混凝土高桥墩抗震性能有限元分析
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摘要
基于ABAQUS有限元分析软件,建立了圆形钢管混凝土高桥墩的非线性有限元计算模型。分别对不同径厚比、轴压比、混凝土强度的计算模型进行了低周反复荷载试验下全过程的非线性分析,得出了相应的滞回曲线、骨架曲线。并对以上计算结果进行了分析,得到了一些有工程建设意义的结论。
Based on the ABAQUS software,the non-linear finite element calculation model for high bridge pier of concrete-filled round steel pipe was established.The non-linear analysis of the whole process under low-cycle repetitive load tests was made for calculation models with different diameter-thickness ratio,axial-load ratio,and concrete strength,and the corresponding hysteresis curve and the skeleton curves were derived.The abovementioned results were analyzed,and some profitable conclusions for engineering construction were obtained.
Based on the ABAQUS software,the non-linear finite element calculation model for high bridge pier of concrete-filled round steel pipe was established.The non-linear analysis of the whole process under low-cycle repetitive load tests was made for calculation models with different diameter-thickness ratio,axial-load ratio,and concrete strength,and the corresponding hysteresis curve and the skeleton curves were derived.The abovementioned results were analyzed,and some profitable conclusions for engineering construction were obtained.
引文
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[11]Mander J B,Priestley M J N,Park R.Observed Stress-strain Behavior of Confined Concrete[J].Journal of Struc-tural Engineering,ASCE,1988,114(8):1827-1849.
[2]李鸿晶,陆鸣,温增平,等.汶川地震桥梁震害的特征[J].南京工业大学学报(自然科学版),2009,31(1):24-29.
[3]周科,冷艳玲.汶川地震桥梁损毁分析及公路桥梁抗震设计初探[J].公路交通科技(应用技术版),2010,(6):139-142.
[4]K.A.S.Susantha,Tetsuhiko Aokia,Takushi Kumano,etal.Applicability of low-yield-strength steel for ductility im-provement of steel bridge piers[J].Engineering Structures,2005,27:1064-1073.
[5]钟善桐.钢管混凝土结构[M].北京:清华大学出版社,2003.
[6]韩林海.钢管混凝土结构—理论与实践[M].北京:科学出版社,2004.
[7]杜喜凯.往复荷载作用下钢管混凝土柱性能试验及理论分析[D].天津:天津大学,2010.
[8]陈宝春编著.钢管混凝土拱桥设计与施工[M].北京:人民交通出版社,1999.
[9]臧华.钢管混凝土桥墩的静力与抗震性能研究[D].南京:东南大学,2007.
[10]Mander J B,Priestley M J N,Park R.Theoretical Stress-strain Model for Confined Concrete[J].Journal of Struc-tural Engineering,ASCE,1988,114(8):1804-1826.
[11]Mander J B,Priestley M J N,Park R.Observed Stress-strain Behavior of Confined Concrete[J].Journal of Struc-tural Engineering,ASCE,1988,114(8):1827-1849.
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