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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

期数:

2026年02期

页码:

21-33

栏目:

建筑结构

出版日期:

2026-03-30

文章信息/Info

Title:

Development and nonlinear analysis of fiber beam model for engineered cementitious composites

文章编号:

1673-2049(2026)02-0021-13

作者:

白亮¹,王龙振¹,张才¹,梁兴文²

(1. 长安大学 建筑工程学院,陕西 西安 710061; 2. 西安建筑科技大学 土木工程学院,陕西 西安 710055)

Author(s):

BAI Liang¹, WANG Longzhen¹, ZHANG Cai¹, LIANG Xingwen²

(1. School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China; 2. School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, Shaanxi, China)

关键词:

纤维梁模型;  ECC;  本构关系;  非线性分析;  易损性分析

Keywords:

fiber beam model;  engineered cementitious composite;  constitutive relation;  nonlinear analysis;  vulnerability analysis

分类号:

TU528

DOI:

10.19815/j.jace.2025.09038

文献标志码:

A

摘要:

基于纤维梁单元,构建了高延性水泥基复合材料(ECC)单轴受压、受拉滞回本构模型; 依托 ABAQUS 二次开发平台,采用 Fortran 语言编写了 ECC 专用用户材料子程序 ECC-Fiber,同时提出适配 ABAQUS 有限元分析的 ECC 纤维梁单元建模方法,并将该子程序嵌入 ABAQUS 有限元计算软件以实现单调及反复荷载作用下 ECC 结构的非线性分析。在材料层次,进行了ECC圆柱体拉、压循环加载试验验证; 在构件层次,分别对RC/ECC组合梁单调加载受弯试验、配筋ECC梁往复加载受弯试验、配筋ECC柱往复加载压弯试验等进行验证; 在结构层次,对RC/ECC组合框架结构振动台试验进行验证。在此基础上,利用所开发的ECC纤维梁模型,对RC/ECC组合框架结构进行易损性分析,提出其各性能水准对应的地震动强度指标及常遇、罕遇地震作用下各性能水准的失效概率。结果表明:所开发的ECC纤维梁模型能够较好地反映ECC构件以及结构的非线性响应; 根据易损性评估结果,相同极限状态下,RC/ECC组合框架结构的易损性曲线斜率较RC框架更小; 相比RC框架结构,RC/ECC组合框架结构各性能水准失效概率明显降低,倒塌储备系数提高了1.75倍,RC/ECC组合框架结构具有更优的抗倒塌能力以及安全储备。

Abstract:

Based on the fiber beam element, the engineered cementitious composite(ECC)uniaxial hysteretic constitutive model was developed. Through the ABAQUS platform, a subroutine for fiber beam elements for ECC was developed by Fortran, namely ECC-fiber. The ECC fiber beam element approach suitable for ABAQUS program was proposed, which could be used for the nonlinear analysis of ECC components under monotonic and repeated loads. At material level, the tensile and compressive cyclic tests of ECC cylinder were verified. At component level, the monotonic flexural test of RC/ECC composite beam, cyclic flexural loading test of reinforced ECC beams, cyclic compression-bending test of reinforced ECC columns were verified respectively. At structure level, the vibration table test of RC/ECC composite frame structure was verified. On this basis, the vulnerability analysis of RC/ECC composite frame structure was carried out, and the ground motion intensity index of performance level and the failure probability of each performance level under the action of frequent and rare earthquakes were proposed by utilizing the ECC fiber beam model. The results show that the developed fiber beam model can well reflect the nonlinear response of ECC components and structures. The vulnerability curve slope of RC/ECC composite frame structure is smaller than that of RC frame structure. Compared with RC frame structure, the RC/ECC composite frame structure has significantly lower failure probability at each performance level, with its collapse margin ratio increased by 1.75 times, confirming sufficient collapse resistance and safety reserve.

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相似文献/References:

[1]翟梦超,王景全,姚一鸣.织物增强混凝土的纤维协同等代效应对约束混凝土的影响分析[J].建筑科学与工程学报,2021,38(04):110.[doi:10.19815/j.jace.2020.09073]
　ZHAI Meng-chao,WANG Jing-quan,YAO Yi-ming.Influence Analysis of Fiber Synergistic Equivalent Effect of Textile Reinforced Concrete on Confined Concrete[J].Journal of Architecture and Civil Engineering,2021,38(02):110.[doi:10.19815/j.jace.2020.09073]
[2]白 亮,宋莉莎,许卓轩,等.开口型压型钢板-ECC组合楼板受力性能试验研究及数值模拟[J].建筑科学与工程学报,2024,41(04):20.[doi:10.19815/j.jace.2024.02001]
　BAI Liang,SONG Lisha,XU Zhuoxuan,et al.Experimental investigation and numerical simulation on mechanical behavior of opened profiled steel sheet-ECC composite slabs[J].Journal of Architecture and Civil Engineering,2024,41(02):20.[doi:10.19815/j.jace.2024.02001]

备注/Memo

备注/Memo:

收稿日期:2025-09-09
基金项目:国家自然科学基金项目(51208058,51708035); 陕西省重点研发计划项目(2025SF-YBXM-544); 陕西省教育厅科学研究计划项目(21JP006)
作者简介:白 亮(1981-),男,工学博士,教授,博士生导师,E-mail:bailiang@chd.edu.cn。
Author resume: BAI Liang(1981-), male, PhD, professor, E-mail: bailiang@chd.edu.cn.

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更新日期/Last Update: 2026-04-01