Morfología de tableros aligerados de canto constante postesados para puentes carreteros y ferroviarios
[EN] In the work a study to statistically characterise 82 prestressed concrete bridge decks of real flyovers of constant depth are treated. The main objective of the study is to find design formulae with the least number of data so as to improve the preliminary design of this type of structures. The...
| Authors: | , , |
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| Format: | article |
| Publication Date: | 2011 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | Spanish |
| OAI Identifier: | oai:riunet.upv.es:10251/50655 |
| Online Access: | https://riunet.upv.es/handle/10251/50655 |
| Access Level: | Open access |
| Keyword: | Análisis Multivariante Puentes ferroviarios Puentes carreteros Puentes pretensados INGENIERIA DE LA CONSTRUCCION EXPRESION GRAFICA EN LA INGENIERIA |
| Summary: | [EN] In the work a study to statistically characterise 82 prestressed concrete bridge decks of real flyovers of constant depth are treated. The main objective of the study is to find design formulae with the least number of data so as to improve the preliminary design of this type of structures. The study performs an exploratory analysis and a multivariate analysis of the geometrical variables, the amount of materials and the cost far voided decks. The regression models have allowed predicting the depth of the deck as a function of the span and the externa/ void. The depth is the variable that better explains (51.9%) the cost per unit surface of the deck in road bridges, while for railway decks this variable only explains in the order of 23.4%, what implies more independent variables. The main span and the external void together with the infernal void of the road deck with the number of spa ns and the total length in the case of the railway deck are enough to find the preliminary design of the slab with reasonable accuracy for the economic assessment of the design |
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