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[1]李 正,李忠献.基于梁柱单元的钢筋混凝土桥墩地震损伤分析[J].天津大学学报(自然科学版),2011,(03):189-195.
 LI Zheng,LI Zhong-xian.Seismic Damage Analysis of Reinforced Concrete Bridge Piers Based on Beam-Column Elements[J].Journal of Tianjin University,2011,(03):189-195.
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基于梁柱单元的钢筋混凝土桥墩地震损伤分析()
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《天津大学学报(自然科学版)》[ISSN:0493-2137/CN:12-1127/N]

卷:
期数:
2011年03
页码:
189-195
栏目:
出版日期:
2011-03-15

文章信息/Info

Title:
Seismic Damage Analysis of Reinforced Concrete Bridge Piers Based on Beam-Column Elements
作者:
李 正12李忠献12
(1. 天津大学建筑工程学院,天津 300072; 2. 天津大学滨海土木工程结构与安全教育部重点实验室,天津 300072)
Author(s):
LI Zheng 12LI Zhong-xian 12
(1. School of Civil Engineering,Tianjin University,Tianjin 300072,China; 2. Key Laboratory of Coast Civil Structure Safety,Ministry of Education,Tianjin University,Tianjin 300072,China)
关键词:
钢筋混凝土桥墩地震损伤单轴损伤本构模型梁柱单元纤维模型
Keywords:
reinforced concrete bridge pierseismic damageuniaxial damage constitutive modelbeam-column elementfiber model
分类号:
O346.5;TU352
文献标志码:
A
摘要:
Faria-Oliver模型是一个简单而有效的混凝土损伤模型.基于Faria-Oliver模型提出了混凝土单轴损伤模型,且加以修正以更好地模拟混凝土单边效应;在ABAQUS软件平台上,编制了含有钢筋修正Menegotto-Pinto模型和混凝土单轴修正Faria-Oliver损伤模型的用户材料子程序VUMAT,建立了纤维模型等效模拟方法;分别模拟了一钢筋混凝土桥墩试件的循环加载试验和一钢筋混凝土桥墩试件的振动台试验,模拟结果与试验结果基本吻合.研究表明:本文所给出的单轴本构模型及纤维模型等效模拟方法有效、适用;基于梁柱单元的钢筋混凝土桥墩地震损伤分析不仅计算效率高而且提供了地震损伤演化过程信息,具有较强的工程实用性.
Abstract:
Faria-Oliver model is a simple and effective damage model for concrete. The uniaxial version of the Faria-Oliver damage model was proposed in the present paper. Meanwhile, the modification of Faria-Oliver model was in-troduced to describe the unilateral effect of concrete more properly. In addition, the material subroutines i.e. the modi-fied Menegotto-Pinto model for reinforcing steel and the uniaxial modified Faria-Oliver model for concrete were im-plemented into VUMAT and the equivalent modeling strategy of fiber model was established within the FEA softwareABAQUS. Furthermore, the numerical simulations of a cyclic loading test and a shaking table test of the reinforced concrete (RC) bridge piers were conducted. The results of the numerical simulations agreed well with the experimental ones. The present study indicates that the aforementioned uniaxial constitutive models and the equivalent modelingstrategy of fiber model are effective and the seismic analysis of RC bridge piers using beam-column elements not only has a high computational efficiency but also provides information about seismic damage evolution.

备注/Memo

备注/Memo:
通讯作者:李忠献,zxli@tju.edu.cn.
更新日期/Last Update: 2011-03-15