[1]吴畅,潘钻峰,孟少平.应变硬化水泥基复合材料单轴滞回本构模型[J].东南大学学报(自然科学版),2015,45(5):969-974.[doi:10.3969/j.issn.1001-0505.2015.05.026]
 Wu Chang,Pan Zuanfeng,Meng Shaoping.Uniaxial cyclic constitutive model for strain hardening cementitious composites[J].Journal of Southeast University (Natural Science Edition),2015,45(5):969-974.[doi:10.3969/j.issn.1001-0505.2015.05.026]
点击复制

应变硬化水泥基复合材料单轴滞回本构模型()
分享到:

《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5期
页码:
969-974
栏目:
土木工程
出版日期:
2015-09-20

文章信息/Info

Title:
Uniaxial cyclic constitutive model for strain hardening cementitious composites
作者:
吴畅1潘钻峰2孟少平1
1东南大学土木工程学院, 南京 210096; 2同济大学土木工程学院, 上海 200092
Author(s):
Wu Chang1 Pan Zuanfeng2 Meng Shaoping1
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2College of Civil Engineering, Tongji University, Shanghai 200092, China
关键词:
应变硬化水泥基复合材料 反复加载 单轴滞回本构模型 非线性有限元分析
Keywords:
strain hardening cementitious composites(SHCC) cyclic loading uniaxial cyclic constitutive model nonlinear finite element analysis
分类号:
TU318.1;TU528.58
DOI:
10.3969/j.issn.1001-0505.2015.05.026
摘要:
为了有效地模拟应变硬化水泥基复合材料(SHCC)构件在地震作用下的性能,提出一种可模拟SHCC构件在反复荷载作用下的单轴本构模型.该模型中SHCC材料受压骨架曲线的上升段采用二次抛物线形式模拟,下降段采用双折线形式模拟;受拉骨架曲线的上升段、应变硬化段及下降段则采用三折线形式模拟.通过设置参考点的方法确定SHCC的卸载规则,考虑了不完全卸载-再加载的情况以及加载过程中的拉压间的传递模式.利用OpenSEES计算平台编写了该本构模型,并与材料和构件2个层次的试验结果进行了对比,结果表明,所提出的单轴滞回模型能够准确地反映SHCC材料在反复荷载作用下的受力性能.
Abstract:
For effectively simulating the seismic behavior of strain hardening cementitious composites(SHCC)members, a uniaxial cyclic constitutive model for SHCC was proposed. The ascending branch of the compressive envelop curve was imitated by using the form of parabolic curve; while the bilinear form was adopted for the descending branch. A trilinear form was used to imitate the ascending, strain-hardening and descending branches of tensile stress-strain curve. By the method of setting reference point, the rules of unloading process were determined in consideration of the partial unloading-reloading scheme. Furthermore, the transition between tension and compression was considered in the cyclic model. The proposed cyclic constitutive model was coded by OpenSEES software and applied to simulate the material and component tests. The simulation results indicate that the proposed model is reasonably accurate in simulating the mechanical properties of SHCC and the cyclic behavior of SHCC flexural element.

参考文献/References:

[1] 赵国藩,彭少民,黄承逵.钢纤维混凝土结构[M].北京:中国建筑工业出版社,1999:1-5.
[2] Naaman A E, Reinhardt H W. Setting the stage: toward performance-based classification of FRC composites[C]//Proceedings of the 4th Intl RILEM Workshop. Ann Arbor, USA, 2003: 1-4.
[3] Li V C, Leung C K Y. Steady state and multiple cracking of short random fiber composites [J]. ASCE Journal of Engineering Mechanics, 1992, 188(9): 2246-2264.
[4] Li V C, Stang H, Krenchel H. Micromechanics of crack bridging in fiber reinforced concrete [J]. Materials and Structure, 1993, 26: 486-494.
[5] Han T S, Feenstra P H, Billington S L. Simulation of highly ductile fiber-reinforced cement-based composite components under cyclic loading[J]. ACI Structural Journal, 2003, 100(6): 749-757.
[6] Kesner K E, Billington S L, Douglas K S. Cyclic response of highly ductile fiber-reinforced cement-based composites [J]. ACI Materials Journal, 2003, 100(5): 381-390.
[7] Gencturk B. Multi-objective optimal seismic design of building using advanced engineering materials [D]. Urbana, USA: Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 2011.
[8] Gencturk B, Elnashai A S. Numerical modeling and analysis of ECC structures [J]. Materials and Structures, 2013, 46(4): 663-682.
[9] Elnashai A S, Papanikolaou V K, Lee D. ZEUS NL—a system for inelastic analysis of structures. User’s manual [R]. Urbana,USA:Mid-America Earthquake(MAE)Center, 2010.
[10] Fischer G, Li V C. Effect of matrix ductility on deformation behavior of steel-reinforced ECC flexural members under reversed cyclic loading conditions[J]. ACI Structural Journal, 2002, 99(6): 781-790.
[11] Kesner K, Billington S L. Investigation of infill panels made from engineered cementitious composites for seismic strengthening and retrofit [J]. Journal of Structural Engineering, 2005, 131(11): 1712-1720.
[12] Hognestad E, McHenry D, Hanson N W. Concrete stress distribution in ultimate strength design [J]. Journal of the American Concrete Institute, 1955, 27(4): 455-479.
[13] 徐世烺,蔡向荣,张英华.超高韧性水泥基复合材料单轴受压应力-应变全曲线试验测定与分析[J].土木工程学报,2009(11):79-85.
  Xu Shilang, Cai Xiangrong, Zhang Yinghua. Experimental measurement and analysis of the axial compressive stress-strain curve of ultra high toughness cementitious composites [J]. China Civil Engineering Journal, 2009(11): 79-85.(in Chinese)
[14] Yassin M. Nonlinear analysis of prestressed concrete structures under monotonic and cyclic loading [D]. Berkeley, USA: Department of Civil and Environmental Engineering, University of California, 1994.
[15] Yankelevsky D Z, Reinhardt H W. Uniaxial behavior of concrete in cyclic tension [J]. ASCE Journal of Structural Engineering, 1989, 115(9): 166-182.
[16] Mazzoni S, McKenna F, Scott M H, et al. OpenSees command language manual [EB/OL].(2007)[2015-01]. http://opensees.berkeley.edu.
[17] Fischer G, Li V C. Deformation behavior of fiber-reinforced polymer reinforced ECC flexural members under reversed cyclic loading conditions [J]. ACI Structural Journal, 2003, 100(1): 25-35.

备注/Memo

备注/Memo:
收稿日期: 2015-01-12.
作者简介: 吴畅(1986—),男,博士生;孟少平(联系人),男,博士,教授,博士生导师,msp1960@vip.sina.com.
基金项目: 国家自然科学基金青年基金资助项目(51208093)、教育部博士点基金资助项目(20120092120021).
引用本文: 吴畅,潘钻峰,孟少平.应变硬化水泥基复合材料单轴滞回本构模型[J].东南大学学报:自然科学版,2015,45(5):969-974. [doi:10.3969/j.issn.1001-0505.2015.05.026]
更新日期/Last Update: 2015-09-20