| Autor: |
Ulzhan Ibraimova, Nurlan Zhangabay, Timur Tursunkululy, Murat Rakhimov, Serik Dossybekov, Alexandr Kolesnikov, Galymzhan Karshyga, Nurbek Tengebayev, Nazgul Zhirenbayeva, Yury Liseitsev |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Case Studies in Construction Materials, Vol 19, Iss , Pp e02233- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2214-5095 |
| DOI: |
10.1016/j.cscm.2023.e02233 |
| Popis: |
This paper sets out the findings of an investigation on the development of a method for calculating aboveground pre-strained cylindrical sheaths, in view of design parameters: the winding angle, pitch and thickness on a concrete base, as a result of which a new expression was obtained. The analysis of the obtained expression showed that the winding thickness variation from 4 mm to 6 mm at the angle of helix of 90º, the value of the strained state parameter (k) varies from 1.3 % to 4.64 %, similar increases in the value of k were obtained with an increase in thickness and at angles of helix of 60º and 75º, where the value of k increased by 0.94–3.82 % and 1.12–4.56 %, respectively. The findings also showed that as the winding thickness increases, the value of k increases independently at different winding angles and pitches. A similar analysis was performed with a variation in the pitch, but with respect to the winding thickness and angle, where the value of k also varies in terms of the winding pitch ranging from 2.61 % to 18.59 % depending on the specific case, and the analysis of the angle of helix showed a variation in the value of k ranging from 0.37 % to 5.24 %. The findings of the variant analysis showed the practicality of the expression obtained, which affords ground for obtaining the required value of the strained state parameter for a particular specific case without carrying out lengthy calculations, which may explicitly supplement the investigations formerly pursued in this course. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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