低周往复加载下装配式混凝土单、双柱桥墩力学性能比较  

Comparative Analysis on Mechanical Properties of Assembly Single Column Pier and Double Column Solid Piers with Low Cycle Reciprocal Loading

作　　者：林梅 杨泽刚 张世诚 雷笑[2] Lin Mei;Yang Zegang;Zhang Shicheng;Lei Xiao(Nanjing Highway Development Center,Nanjing Jiangsu 210039,China;College of Civil and Transportation,Hohai University,Nanjing Jiangsu 210098,China)

机构地区：[1]南京市公路事业发展中心,江苏南京210039 [2]河海大学土木与交通学院,江苏南京210098

出　　处：《城市建筑》2021年第17期172-174,共3页Urbanism and Architecture

摘　　要：为了研究低周往复加载作用下装配式单柱与双柱实心桥墩的力学性能的异同,本文利用ABAQUS建立装配式单双柱桥墩模型,分析加载过程中单双柱桥墩的混凝土损伤、钢筋应力、滞回曲线等的变化规律。结论显示在低周往复加载作用下,双柱墩的主要损伤部位为顶部和底部,而单柱墩的主要损伤部位为底部;双柱墩的横向刚度大于单柱墩;相同位移下双柱墩产生的反力约为单柱墩的5倍。In order to compare and study the mechanical properties of assembled single column pier and double column solid piers under low cycle cyclic loading,a single and double column model is established based on ABAQUS.The similarities and differences of concrete damage,steel bar stress and hysteretic curve of assembled single and double column pier during loading process are explored.The results show that under the action of low cycle reciprocating loading,the main damage position of double column pier is the top and bottom,while the main damage position of single column pier is the bottom;The transverse stiffness of double column pier is larger than that of single column pier,and the reaction force of double column pier under the same displacement is about 5 times that of single column pier.

关 键 词：装配式 单柱墩 双柱墩 有限元模拟 灌浆套筒 

分 类 号：TU398.9[建筑科学—结构工程]