Application of a new system of self-tensioning to the design of large-span wood floor framings
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Mostrar el registro completo del ítemTítulo
Application of a new system of self-tensioning to the design of large-span wood floor framingsAutor(es)
Fecha
2016Centro/Dpto/Entidad
Universidade da Coruña. Departamento de Tecnoloxía da ConstruciónCita bibliográfica
Otero-Chans, D., Estévez-Cimadevila, J., Martín-Gutiérrez, E., and Pérez-Valcárcel, J. (2016). "Application of a New System of Self-Tensioning to the Design of Large-Span Wood Floor Framings” Journal of structural engineering. 10.1061/(ASCE)ST.1943-541X.0001486 , 04016012
Resumen
[Abstract]This study describes a self-tensioning system in which the gravitational loads acting on a horizontal structural element are automatically converted to a post-tensioning force on that component. The self-tensioning effect has a variable intensity, constantly adjusted depending on the applied service loads. The self-tensioning is eccentrically applied over the cross-section, and it generates a negative moment that compensates the deformations due to the gravitational loads. The system can be utilized in beams, slabs and structural framings of different materials and can be implemented using different mechanical and hydraulic solutions. The study describes the operation of a mechanical solution for the self-tensioning system and analyzes its behavior in large-span timber floor framings. When combined with conventional pre-tensioning, the self-tensioning system notably improves the strength and deformation behavior and permits a design of timber floor framings with a total height of 0.03 times the span length, achieving relative deflections below 1/1000 of the span for the service loads of the structure.
Palabras clave
Post-tensioning
Self-tensioning
Prestressing
Pre-tensioning
Tensioning systems
Long-span
Timber flooring
Wooden structures
Self-tensioning
Prestressing
Pre-tensioning
Tensioning systems
Long-span
Timber flooring
Wooden structures
Versión del editor
Derechos
This paper is part of the Journal of Structural Engineering,© ASCE, ISSN 0733-9445
Otero-Chans, D., Estévez-Cimadevila, J., Martín-Gutiérrez, E., and Pérez-Valcárcel, J. (2016). "Application of a New System of Self-Tensioning to the Design of Large-Span Wood Floor Framings." J. Struct. Eng. , 10.1061/(ASCE)ST.1943-541X.0001486 , 04016012.
PUBLISHED VERSION CAN BE FOUND IN : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29ST.1943-541X.0001486
ISSN
0733-9445
1943-541X
1943-541X
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