| 引用本文: | 林坤,刘红军,Yuri TOTOEV.反复加载下无浆砌体接缝剪切特性[J].哈尔滨工业大学学报,2012,44(8):6.DOI:10.11918/j.issn.0367-6234.2012.08.002 |
| LIN Kun,LIU Hong-jun,Yuri TOTOEV.Behavior of mortar-less masonry joint under cyclic shear-compression loading[J].Journal of Harbin Institute of Technology,2012,44(8):6.DOI:10.11918/j.issn.0367-6234.2012.08.002 |
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| 摘要: |
| 为研究在钢筋混凝土框架结构和砌体结构中具有良好应用前景的无浆砌体墙的剪切特性,采用反复加载试验方法,完成了36组干砌块双剪试验,随后利用界面单元和平面应力单元建模开展了相应有限元分析．试验研究中着重考察了反复加载过程对砌体剪切特性的影响,研究结果表明:无浆砌体通缝剪切特性符合摩尔-库仑关系;剪切摩擦系数随加载周期、幅值变化而改变;利用界面单元及平面应力单元建立的有限元模型可以有效地对剪切试验进行仿真． |
| 关键词: 无浆砌体接缝 剪-压试验 摩擦系数 反复加载 滞回特性 有限元分析 |
| DOI：10.11918/j.issn.0367-6234.2012.08.002 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(51178153);教育部新世纪优秀人才支持计划(NCET-08-0160). |
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| Behavior of mortar-less masonry joint under cyclic shear-compression loading |
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LIN Kun1, LIU Hong-jun1, Yuri TOTOEV2
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1.Shenzhen Graduate School,Harbin Institute of Technology, 518055 Shenzhen, Guangdong, China;2.Centre for Infrastructure Performance and Reliability, The University of Newcastle, 2308 Callaghan NSW, Australia
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| Abstract: |
| To research the shear-compression behavior of mortar-less masonry which has potential in the reinforcement concrete frame and masonry structures, 36 shear-compression tests were carried under cyclic loads. During the test, the influence of cyclic shear-compress load on the behavior was emphasized. After that, a finite element model was built with interface and plain stress elements. The research indicates that the coulomb friction law is adequate to represent the failure of mortar-less joints under moderate stress levels, the friction coefficient varies under different load aptitude which can’t be ignored and the model with interface element and plane stress element is valid in simulation of shear-compression test. |
| Key words: dry stack masonry joint shear-compression test friction coefficient cyclic loading hysteretic behaviour finite element method analysis |
