Push-over analysis of concrete gravity dams due to flood inflow
This study numerically predicts the failure scenario of a cracked concrete gravity dam through a push-over nonlinear analysis. The mixed-mode Linear Elastic Fracture Mechanics (LEFM) was employed using the extended finite element method (XFEM). The dam base was considered to be fully fixed without a...
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| Format: | Article |
| Language: | English |
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K. N. Toosi University of Technology
2021-12-01
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| Series: | Numerical Methods in Civil Engineering |
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| Online Access: | https://nmce.kntu.ac.ir/article_160574_26fff95444d5ad5b3b011fdfefd7bbe4.pdf |
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| author | Mohammad Reza Gavzan Daroonkola Mohammad Taghi Ahmadi |
| author_facet | Mohammad Reza Gavzan Daroonkola Mohammad Taghi Ahmadi |
| author_sort | Mohammad Reza Gavzan Daroonkola |
| collection | DOAJ |
| description | This study numerically predicts the failure scenario of a cracked concrete gravity dam through a push-over nonlinear analysis. The mixed-mode Linear Elastic Fracture Mechanics (LEFM) was employed using the extended finite element method (XFEM). The dam base was considered to be fully fixed without any foundation effects. The hydrostatic pressure on the dam's upstream face was increased incrementally. The failure scenario type of the concrete gravity dams with an initial crack at an arbitrary level exhibited a ductile manner. A mixed-mode crack path with a positive mode II was observed in all initial crack levels. Based on the results, it can be claimed that provided water intrusion prevented, "cracked" concrete gravity dams may not be at noticeable risk of failure due to flood inflow. |
| format | Article |
| id | doaj-art-e45fc881842c49a58953c00f9d170f86 |
| institution | OA Journals |
| issn | 2345-4296 2783-3941 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | K. N. Toosi University of Technology |
| record_format | Article |
| series | Numerical Methods in Civil Engineering |
| spelling | doaj-art-e45fc881842c49a58953c00f9d170f862025-08-20T01:58:37ZengK. N. Toosi University of TechnologyNumerical Methods in Civil Engineering2345-42962783-39412021-12-0164596610.52547/nmce.6.4.59160574Push-over analysis of concrete gravity dams due to flood inflowMohammad Reza Gavzan Daroonkola0Mohammad Taghi Ahmadi1Ph.D. Candidate, Faculty of Civil and Environmental Engineering, Tarbiat Modares University, P.O. Box 14115-397, Tehran, Iran.Professor, Faculty of Civil and Environmental Engineering, Tarbiat Modares University, P.O. Box 14115-397, Tehran, Iran.This study numerically predicts the failure scenario of a cracked concrete gravity dam through a push-over nonlinear analysis. The mixed-mode Linear Elastic Fracture Mechanics (LEFM) was employed using the extended finite element method (XFEM). The dam base was considered to be fully fixed without any foundation effects. The hydrostatic pressure on the dam's upstream face was increased incrementally. The failure scenario type of the concrete gravity dams with an initial crack at an arbitrary level exhibited a ductile manner. A mixed-mode crack path with a positive mode II was observed in all initial crack levels. Based on the results, it can be claimed that provided water intrusion prevented, "cracked" concrete gravity dams may not be at noticeable risk of failure due to flood inflow.https://nmce.kntu.ac.ir/article_160574_26fff95444d5ad5b3b011fdfefd7bbe4.pdfconcrete gravity damlinear elastic fracture mechanic push-over analysisfailure scenarioextended finite element |
| spellingShingle | Mohammad Reza Gavzan Daroonkola Mohammad Taghi Ahmadi Push-over analysis of concrete gravity dams due to flood inflow Numerical Methods in Civil Engineering concrete gravity dam linear elastic fracture mechanic push-over analysis failure scenario extended finite element |
| title | Push-over analysis of concrete gravity dams due to flood inflow |
| title_full | Push-over analysis of concrete gravity dams due to flood inflow |
| title_fullStr | Push-over analysis of concrete gravity dams due to flood inflow |
| title_full_unstemmed | Push-over analysis of concrete gravity dams due to flood inflow |
| title_short | Push-over analysis of concrete gravity dams due to flood inflow |
| title_sort | push over analysis of concrete gravity dams due to flood inflow |
| topic | concrete gravity dam linear elastic fracture mechanic push-over analysis failure scenario extended finite element |
| url | https://nmce.kntu.ac.ir/article_160574_26fff95444d5ad5b3b011fdfefd7bbe4.pdf |
| work_keys_str_mv | AT mohammadrezagavzandaroonkola pushoveranalysisofconcretegravitydamsduetofloodinflow AT mohammadtaghiahmadi pushoveranalysisofconcretegravitydamsduetofloodinflow |