[1]吴宜峰,李爱群,王浩,等.钢筋混凝土双柱墩滞回性能数值模拟与分析[J].东南大学学报(自然科学版),2015,45(4):776-781.[doi:10.3969/j.issn.1001-0505.2015.04.028]
 Wu Yifeng,Li Aiqun,Wang Hao,et al.Numerical simulation and analysis of hysteretic behavior of RC two-columned piers[J].Journal of Southeast University (Natural Science Edition),2015,45(4):776-781.[doi:10.3969/j.issn.1001-0505.2015.04.028]
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钢筋混凝土双柱墩滞回性能数值模拟与分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
45
期数:
2015年第4期
页码:
776-781
栏目:
交通运输工程
出版日期:
2015-07-20

文章信息/Info

Title:
Numerical simulation and analysis of hysteretic behavior of RC two-columned piers
作者:
吴宜峰李爱群王浩王春峰
东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096
Author(s):
Wu Yifeng Li Aiqun Wang Hao Wang Chunfeng
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
双柱墩 弹塑性损伤帽盖模型 正交试验 加载制度 滞回性能
Keywords:
two-columned pier elasto-plastic damage cap model orthogonal experiment loading procedure hysteretic behavior
分类号:
U448.215
DOI:
10.3969/j.issn.1001-0505.2015.04.028
摘要:
为了探究地震作用下钢筋混凝土双柱墩的力学性能及其影响因素,在详细阐述弹塑性损伤帽盖模型的基础上,利用ANSYS/LS-DYNA有限元软件建立了钢筋混凝土双柱墩精细有限元数值模型,并基于正交试验设计原理,采用低周反复加载制度,进行了不同轴压比、配筋率、配箍率、混凝土强度的钢筋混凝土双柱墩滞回性能的数值模拟实验.计算结果表明:该精细有限元模型能够很好地模拟钢筋混凝土双柱墩的滞回性能;双柱墩的配筋率对其最大抗力与延性能力2个指标的影响最为显著;轴压比与混凝土强度对这2个指标的影响较大;配箍率在超过一定数值后,对这2个指标的影响较小.
Abstract:
In order to study the mechanical characteristics and its influential factors of reinforced concrete(RC)two-columned piers when suffering seismic action, the elasto-plastic damage cap model for concrete is explained in detail, and the finite element models of the piers are developed by the software ANSYS/LS-DYNA. By means of the orthogonal experiment design methods and low-cycle reversed loading procedures, the influences of axial compression ratio, longitudinal reinforcement ratio, stirrup reinforcement ratio and concrete strength on the mechanical characteristics of the piers are investigated. Results show that the finite element model of the RC two-columned piers developed above is capable of simulating the hysteretic behavior very well. The longitudinal reinforcement ratio has the most significant impact on the largest resistant force and the ductility capacities of the piers, the influences of the axial compression ratio and concrete strength are prominent, and the stirrup reinforcement ratio affects little when exceeding a certain level.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2014-12-07.
作者简介: 吴宜峰(1990—),男,博士生;李爱群(联系人),男,博士,教授,博士生导师,aiqunli@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51278104)、教育部新世纪优秀人才支持计划资助项目(NCET-13-0128)、江苏省土木工程环境灾变与结构可靠性重点实验室开放基金资助项目(JSKL2014K03)、招商局重庆交通科研设计院有限公司桥梁结构抗震技术交通行业重点实验室开放基金资助项目(201302).
引用本文: 吴宜峰,李爱群,王浩,等.钢筋混凝土双柱墩滞回性能数值模拟与分析[J].东南大学学报:自然科学版,2015,45(4):776-781. [doi:10.3969/j.issn.1001-0505.2015.04.028]
更新日期/Last Update: 2015-07-20