首页 | 本学科首页   官方微博 | 高级检索  
     检索      

高强箍筋约束混凝土桥墩的抗震耗能分析
引用本文:肖潇,胥奇,孟琳.高强箍筋约束混凝土桥墩的抗震耗能分析[J].南华大学学报(自然科学版),2016,30(1):99-106.
作者姓名:肖潇  胥奇  孟琳
作者单位:南华大学 城市建设学院,湖南 衡阳 421001,南华大学 城市建设学院,湖南 衡阳 421001,南华大学 城市建设学院,湖南 衡阳 421001
基金项目:国家安监总局安全生产重大事故防治关键技术科技基金资助项目(hunan-0021-2015AQ);湖南省科技计划基金资助项目(2014GK3111);湖南省教育厅重点基金资助项目(15A163);衡阳市科技发展计划基金资助项目(2014KS24)
摘    要:利用有限元软件ABAQUS对8根分别配置PC钢棒或HRB500级钢筋作箍筋的高强混凝土桥墩进行了低周反复水平荷载下的抗震性能仿真分析,研究其滞回曲线、骨架曲线、位移延性系数、累积滞回耗能、能量延性系数等的变化规律.进一步探讨轴压比、配箍种类、箍筋间距、混凝土强度等对桥墩抗震性能的影响,结果表明:模拟结果与文献试验结果吻合良好,验证了有限元模拟的正确性;PC钢棒或HRB500级钢筋作高强箍筋约束高强混凝土在低周反复水平荷载作用下的滞回曲线均较饱满,滞回环包络面积大,延性和耗能能力好,且相比之下PC钢棒的抗震性能更为优越.

关 键 词:滞回耗能  高强箍筋  抗震性能  数值分析  ABAQUS
收稿时间:2015/11/9 0:00:00

Seismic Analysis of Energy Consumption on High-strength Stirrup Confined Concrete Piers
XIAO Xiao,XU Qi and MENG Lin.Seismic Analysis of Energy Consumption on High-strength Stirrup Confined Concrete Piers[J].Journal of Nanhua University:Science and Technology,2016,30(1):99-106.
Authors:XIAO Xiao  XU Qi and MENG Lin
Institution:School of Urban Construction,University of South China,Hengyang,Hunan 421001,China,School of Urban Construction,University of South China,Hengyang,Hunan 421001,China and School of Urban Construction,University of South China,Hengyang,Hunan 421001,China
Abstract:In this paper,a total of 8 high-strength concrete pier confined by high-strength PC stirrups or HRB500 stirrups were simulated under cyclic lateral force and a constant axial loading through the finite element software ABAQUS.The characteristic of hysteresis loop,skeleton curve,ductility coefficient,hysteretic energy dissipation,ductility coefficient of energy are observed.The axial compression ratio,reinforcement ratio,stirrup types and spacing and concrete strength on the influence law of seismic performance of bridge pier are also analyzed.The results indicate that the simulation results are in good agreement with experiment results and verify the validity of the finite element simulation.The hysteresis curve and hysteresis loop area of high-strength PC steel bar stirrup and HRB500 reinforced high strength concrete under repeated horizontal load are both big.They also have good ductility and energy dissipation capacity.Compared with HRB500 constraint high strength concrete,the PC steel bar confinement effect is more superior.
Keywords:hysteretic energy dissipation  high-strength stirrups  seismic performance  numerical analysis  ABAQUS
点击此处可从《南华大学学报(自然科学版)》浏览原始摘要信息
点击此处可从《南华大学学报(自然科学版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号