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Published: Građevinar 73 (2021) 7
Paper type: Scientific research paper
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Electro-welded lattice reinforcement in reinforced concrete ribbed slabs

Ángel Aragón, Heriberto Pérez-Acebo, Guillermo Aragón, Miguel Ángel Salas

Abstract

Shear strength of precast concrete ribbed slabs reinforced with electro-welded lattice girders of variable height is experimentally verified. Technical justification is given for the use of high latticework in the reinforcement of precast lightweight double-tee ribbed slabs and precast reinforced concrete slabs 30 cm in thickness. It was established that the contribution of concrete to shear strength was always higher than the expected values according to Spanish standards. Furthermore, as low lattice ribbed slabs exhibited lower ultimate shear strength values than the ones expected based on the standards, the need arose to provide an adequate height of lattices in ribbed slabs to ensure anchorage of the compressed area in order to develop the strut-and-tie mechanisms. Consequently, lattice girders with approximately 80% of specimen height are highly recommended in reinforced concrete ribbed slabs, when the length of lattice chords is 20 cm.

Keywords
shear strength, lattice, basic electro-welded lattice, reinforced concrete, one-way slab

HOW TO CITE THIS ARTICLE:

Aragón, Á., Pérez-Acebo, H., Aragón, G., Salas, M. Á.: Electro-welded lattice reinforcement in reinforced concrete ribbed slabs, GRAĐEVINAR, 73 (2021) 7, pp. 705-716, doi: https://doi.org/10.14256/JCE.3038.2020

OR:

Aragón, Á., Pérez-Acebo, H., Aragón, G., Salas, M. Á. (2021). Electro-welded lattice reinforcement in reinforced concrete ribbed slabs, GRAĐEVINAR, 73 (7), 705-716, doi: https://doi.org/10.14256/JCE.3038.2020

LICENCE:

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This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
Angel Aragon WEB
Ángel Aragón
University of Burgos
Department of Civil Engineering
Heriberto Perez Acebo
Heriberto Pérez-Acebo
University of the Basque Country UPV/EHU, Spain
Faculty of Engineering of Bilbao
Mechanical Engineering Department
Guillermo Aragon WEB
Guillermo Aragón
University of Burgos, Spain
Civil Engineering Departement
Miguel Santos
Miguel Ángel Salas
University of Burgos, Spain
Department of Architectural Constructions and Building and Land Engineering