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Mechanical Behavior of the Rock-Concrete Interface for a Bridge Anchorage Structure Using Discrete Element Method
Cui, Zhen1,2; Zhang, Maochu1,2; Sheng, Qian1,2
2022-02-01
Source PublicationJOURNAL OF MARINE SCIENCE AND ENGINEERING
Volume10Issue:2Pages:20
AbstractTraditionally, the numerical simulation work of a bridge gravity anchorage structure is performed with a continuous method, such as the finite element method (FEM). However, since the rock mass and gravity anchorage structure are assumed to be continuous in the FEM, the interaction between the rock mass foundation and the concrete of the anchorage is not frequently considered. This paper aims to investigate the problem of the interaction between the rock mass foundation and the concrete of the anchorage. The discrete element method (DEM), which has been verified to be suitable for the modelling of contact problems of discrete blocks, is introduced in this paper to simulate the mechanical behavior of the rock-concrete system of the gravity anchorage structure and its rock mass foundation. Based on the in-situ scale model test for a bridge, the mechanical behavior of the rock-concrete interface was discussed with the DEM method. With the calibrated DEM model, the displacement of the foundation rock mass, contact stresses, and yield state on the rock-concrete interface were numerically investigated. The anti-sliding effect of the keyway and the step at the bottom of the gravity anchorage structure was analyzed. The results show that the anchorage deformation under the design conditions is basically characterized by the rigid rotation around the keyway of platform #2, and that such rotation subsequently affects the anti-shear capacity of the entire gravity anchorage to a large extent. The anchorage scale model could remain stable under the design lateral load such that the rock-concrete interface would remain intact and sufficient shear resistance could be provided by the keyway and steps.
Keywordbridge anchorage structure discrete element method numerical simulation rock-concrete interface mechanical behavior
DOI10.3390/jmse10020221
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Oceanography
WOS SubjectEngineering, Marine ; Engineering, Ocean ; Oceanography
WOS IDWOS:000769716800001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/34687
Collection中科院武汉岩土力学所
Corresponding AuthorCui, Zhen
Affiliation1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Cui, Zhen,Zhang, Maochu,Sheng, Qian. Mechanical Behavior of the Rock-Concrete Interface for a Bridge Anchorage Structure Using Discrete Element Method[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2022,10(2):20.
APA Cui, Zhen,Zhang, Maochu,&Sheng, Qian.(2022).Mechanical Behavior of the Rock-Concrete Interface for a Bridge Anchorage Structure Using Discrete Element Method.JOURNAL OF MARINE SCIENCE AND ENGINEERING,10(2),20.
MLA Cui, Zhen,et al."Mechanical Behavior of the Rock-Concrete Interface for a Bridge Anchorage Structure Using Discrete Element Method".JOURNAL OF MARINE SCIENCE AND ENGINEERING 10.2(2022):20.
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