Influence of the concrete strength and the type of supports on the stress-strain state of a hyperbolic paraboloid shell footbridge structure
Relevance. This work is the first in a series of publications on the selection of a suitable analytical surface for implementation as a self-supporting structure for a thin shell footbridge. The study on the influence of concrete strength, live load position and support types on the stress-strain st...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Peoples’ Friendship University of Russia (RUDN University)
2021-12-01
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| Series: | Structural Mechanics of Engineering Constructions and Buildings |
| Subjects: | |
| Online Access: | http://journals.rudn.ru/structural-mechanics/article/viewFile/29953/20262 |
| _version_ | 1818753564488499200 |
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| author | David Cajamarca-Zuniga Sebastian Luna |
| author_facet | David Cajamarca-Zuniga Sebastian Luna |
| author_sort | David Cajamarca-Zuniga |
| collection | DOAJ |
| description | Relevance. This work is the first in a series of publications on the selection of a suitable analytical surface for implementation as a self-supporting structure for a thin shell footbridge. The study on the influence of concrete strength, live load position and support types on the stress-strain state of a hyperbolic paraboloid (hypar) shell is presented. Objective - to define the initial design parameters such as the appropriate concrete strength and the support type that generates the best structural behaviour to perform the subsequent structural design of a thin shell footbridge. Methods. The static finite element analysis was performed for 4 compressive strengths of concrete (28, 40, 80, 120 MPa) which correspond normal, high and ultra-high resistance concrete, 5 different live load arrangements and 3 different support conditions. Results. The shell model with pinned (two-hinged) supports shows the same vertical displacements as the model with fixed supports (hingeless). For the studied shell thickness, in terms of stress behaviour, the model with pinned ends is more efficient. The combination of two-hinged supports with 80 MPa concrete strength shows a better structural performance. |
| first_indexed | 2024-12-18T05:09:22Z |
| format | Article |
| id | doaj.art-b2521dcfe2f140e8ac3d8a3aec2c4989 |
| institution | Directory Open Access Journal |
| issn | 1815-5235 2587-8700 |
| language | English |
| last_indexed | 2024-12-18T05:09:22Z |
| publishDate | 2021-12-01 |
| publisher | Peoples’ Friendship University of Russia (RUDN University) |
| record_format | Article |
| series | Structural Mechanics of Engineering Constructions and Buildings |
| spelling | doaj.art-b2521dcfe2f140e8ac3d8a3aec2c49892022-12-21T21:19:55ZengPeoples’ Friendship University of Russia (RUDN University)Structural Mechanics of Engineering Constructions and Buildings1815-52352587-87002021-12-0117437939010.22363/1815-5235-2021-17-4-379-39020893Influence of the concrete strength and the type of supports on the stress-strain state of a hyperbolic paraboloid shell footbridge structureDavid Cajamarca-Zuniga0Sebastian Luna1Catholic University of Cuenca; Peoples’ Friendship University of Russia (RUDN University)Catholic University of CuencaRelevance. This work is the first in a series of publications on the selection of a suitable analytical surface for implementation as a self-supporting structure for a thin shell footbridge. The study on the influence of concrete strength, live load position and support types on the stress-strain state of a hyperbolic paraboloid (hypar) shell is presented. Objective - to define the initial design parameters such as the appropriate concrete strength and the support type that generates the best structural behaviour to perform the subsequent structural design of a thin shell footbridge. Methods. The static finite element analysis was performed for 4 compressive strengths of concrete (28, 40, 80, 120 MPa) which correspond normal, high and ultra-high resistance concrete, 5 different live load arrangements and 3 different support conditions. Results. The shell model with pinned (two-hinged) supports shows the same vertical displacements as the model with fixed supports (hingeless). For the studied shell thickness, in terms of stress behaviour, the model with pinned ends is more efficient. The combination of two-hinged supports with 80 MPa concrete strength shows a better structural performance.http://journals.rudn.ru/structural-mechanics/article/viewFile/29953/20262finite element analysisfootbridgehyperbolic paraboloidshell structurestress-strain statehigh resistance concreteultra-high performance concrete |
| spellingShingle | David Cajamarca-Zuniga Sebastian Luna Influence of the concrete strength and the type of supports on the stress-strain state of a hyperbolic paraboloid shell footbridge structure Structural Mechanics of Engineering Constructions and Buildings finite element analysis footbridge hyperbolic paraboloid shell structure stress-strain state high resistance concrete ultra-high performance concrete |
| title | Influence of the concrete strength and the type of supports on the stress-strain state of a hyperbolic paraboloid shell footbridge structure |
| title_full | Influence of the concrete strength and the type of supports on the stress-strain state of a hyperbolic paraboloid shell footbridge structure |
| title_fullStr | Influence of the concrete strength and the type of supports on the stress-strain state of a hyperbolic paraboloid shell footbridge structure |
| title_full_unstemmed | Influence of the concrete strength and the type of supports on the stress-strain state of a hyperbolic paraboloid shell footbridge structure |
| title_short | Influence of the concrete strength and the type of supports on the stress-strain state of a hyperbolic paraboloid shell footbridge structure |
| title_sort | influence of the concrete strength and the type of supports on the stress strain state of a hyperbolic paraboloid shell footbridge structure |
| topic | finite element analysis footbridge hyperbolic paraboloid shell structure stress-strain state high resistance concrete ultra-high performance concrete |
| url | http://journals.rudn.ru/structural-mechanics/article/viewFile/29953/20262 |
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