Investigating the effect of crack length and angle on the behavior of concrete weights: a case study of Gotvand deviation regulation dam
Seismic behavior in concrete weights due to the need to increase the safety of dams during earthquakes has been very much considered in recent years. Most concrete dams are exposed to cracking damage. These cracks are created by various factors such as operation, concrete treatment, volumetric chang...
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| Format: | Article |
| Language: | fas |
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Iranian Society of Structrual Engineering (ISSE)
2020-07-01
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| Series: | Journal of Structural and Construction Engineering |
| Subjects: | |
| Online Access: | https://www.jsce.ir/article_81348_443da734a9eea7ded3d05c57d251195a.pdf |
| _version_ | 1818823435884691456 |
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| author | zeynab derikvand Hassan Kiamanesh Najaf Hedayat |
| author_facet | zeynab derikvand Hassan Kiamanesh Najaf Hedayat |
| author_sort | zeynab derikvand |
| collection | DOAJ |
| description | Seismic behavior in concrete weights due to the need to increase the safety of dams during earthquakes has been very much considered in recent years. Most concrete dams are exposed to cracking damage. These cracks are created by various factors such as operation, concrete treatment, volumetric changes in concrete mass, loads, etc., and the possible expansion of these cracks may reduce the efficiency, failure and instability of such dams. The use of fracture mechanics as a new method for estimating the instability and durability of concrete dams has been recommended in world-renowned journals and papers. Due to the sensitivity of the subject of crack-erosion in concrete dams, as well as considering that in the past the behavior of the Gotvand dam was not investigated due to trapping, this study examined the behavior of the Gotvand Regulatory Dam due to trapping Has been. Abkhus software is used to model this research. Parameters that are considered as variables include the length of the variable for the cracks and the crack angle. In the case of the effect of the crack angle, the results indicate that the worst case for the dam section is to leave a negative angle. The horizontal displacement value for the -30 degree angle is 0.031 m and is 0.025 m for cracking at an angle of +30 degrees. Also, the increase in the length of the crack increased the amount of displacement, tension and rebound response in the dam. Maximum reciprocating photo in a model with a length of 200 cm, with a crack angle of +45, is 4% higher than the model with a gap of 30 cm and equal to 1.78E+8 of Newton. |
| first_indexed | 2024-12-18T23:39:56Z |
| format | Article |
| id | doaj.art-e1ef6a4882304d05a6c40365f0457808 |
| institution | Directory Open Access Journal |
| issn | 2476-3977 2538-2616 |
| language | fas |
| last_indexed | 2024-12-18T23:39:56Z |
| publishDate | 2020-07-01 |
| publisher | Iranian Society of Structrual Engineering (ISSE) |
| record_format | Article |
| series | Journal of Structural and Construction Engineering |
| spelling | doaj.art-e1ef6a4882304d05a6c40365f04578082022-12-21T20:47:25ZfasIranian Society of Structrual Engineering (ISSE)Journal of Structural and Construction Engineering2476-39772538-26162020-07-017شماره ویژه 210.22065/jsce.2019.145317.166381348Investigating the effect of crack length and angle on the behavior of concrete weights: a case study of Gotvand deviation regulation damzeynab derikvand0Hassan Kiamanesh1Najaf Hedayat2Master of Hydraulic Structures, Dezful Islamic Azad University, Dezful, IranDezful Islamic Azad university facultyDepartment of Hydraulic Structures, Dezful Branch, Islamic Azad University, Dezful, IranSeismic behavior in concrete weights due to the need to increase the safety of dams during earthquakes has been very much considered in recent years. Most concrete dams are exposed to cracking damage. These cracks are created by various factors such as operation, concrete treatment, volumetric changes in concrete mass, loads, etc., and the possible expansion of these cracks may reduce the efficiency, failure and instability of such dams. The use of fracture mechanics as a new method for estimating the instability and durability of concrete dams has been recommended in world-renowned journals and papers. Due to the sensitivity of the subject of crack-erosion in concrete dams, as well as considering that in the past the behavior of the Gotvand dam was not investigated due to trapping, this study examined the behavior of the Gotvand Regulatory Dam due to trapping Has been. Abkhus software is used to model this research. Parameters that are considered as variables include the length of the variable for the cracks and the crack angle. In the case of the effect of the crack angle, the results indicate that the worst case for the dam section is to leave a negative angle. The horizontal displacement value for the -30 degree angle is 0.031 m and is 0.025 m for cracking at an angle of +30 degrees. Also, the increase in the length of the crack increased the amount of displacement, tension and rebound response in the dam. Maximum reciprocating photo in a model with a length of 200 cm, with a crack angle of +45, is 4% higher than the model with a gap of 30 cm and equal to 1.78E+8 of Newton.https://www.jsce.ir/article_81348_443da734a9eea7ded3d05c57d251195a.pdfcrack lengthcrack anglegotvand adjustment damfracture mechanicscracks in concrete dams |
| spellingShingle | zeynab derikvand Hassan Kiamanesh Najaf Hedayat Investigating the effect of crack length and angle on the behavior of concrete weights: a case study of Gotvand deviation regulation dam Journal of Structural and Construction Engineering crack length crack angle gotvand adjustment dam fracture mechanics cracks in concrete dams |
| title | Investigating the effect of crack length and angle on the behavior of concrete weights: a case study of Gotvand deviation regulation dam |
| title_full | Investigating the effect of crack length and angle on the behavior of concrete weights: a case study of Gotvand deviation regulation dam |
| title_fullStr | Investigating the effect of crack length and angle on the behavior of concrete weights: a case study of Gotvand deviation regulation dam |
| title_full_unstemmed | Investigating the effect of crack length and angle on the behavior of concrete weights: a case study of Gotvand deviation regulation dam |
| title_short | Investigating the effect of crack length and angle on the behavior of concrete weights: a case study of Gotvand deviation regulation dam |
| title_sort | investigating the effect of crack length and angle on the behavior of concrete weights a case study of gotvand deviation regulation dam |
| topic | crack length crack angle gotvand adjustment dam fracture mechanics cracks in concrete dams |
| url | https://www.jsce.ir/article_81348_443da734a9eea7ded3d05c57d251195a.pdf |
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