个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职:President of international exchange committee of the Chinese Society of Rock Mechanics and Engineering CSRME
其他任职:国际岩石力学与岩石工程学会(ISRM)中国国家小组副主席
性别:男
毕业院校:东北大学
学位:博士
所在单位:土木工程系
办公地点:综合实验四号楼330
联系方式:tca@mail.neu.edu.cn
Dynamic behavior of cement-mortar cavern reinforced by bars
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论文类型:期刊论文
发表时间:2015-09-01
发表刊物:ENGINEERING FAILURE ANALYSIS
收录刊物:SCIE、EI、Scopus
卷号:55
页面范围:343-354
ISSN号:1350-6307
关键字:Bar reinforced cement-mortar cavern; Failure mode; Blast loads
摘要:This paper conducts a numerical study on the failure modes of aluminium bar reinforced cement-mortar cavern under blast loads. A simplified softening model is proposed to simulate the bond-slip behavior between the aluminium bar and the cement-mortar materials. Comparisons between the numerical results and the test ones demonstrate the accuracy of the proposed numerical model. According to the numerical simulation, three failure modes of the aluminium bar reinforced cement-mortar cavern are identified: (1) failure in reinforced zone, (2) failure in unreinforced zone, and (3) a combining mode of failure in reinforced and unreinforced zone. The results of the numerical simulations indicate that there exists a critical bar spacing, which controls these failure modes: the failure zone transits from the reinforced zone to the unreinforced one by decreasing the bar spacing. A parametric study is also conducted to give a better understanding of the dynamic responses of the aluminium bar reinforced cement-mortar cavern. (C) 2015 Elsevier Ltd. All rights reserved.