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Title: Experimental research of cracking in reinforced concrete elements under tensile loads

Author(s): Sharaf Tork, B.; Gálvez Ruiz, J.C.; Planas Rosselló, J.; Elices Calafat, M.

Publication: ACHE

Volume: 49

Issue: 207

Appears on pages(s): 97 - 111



Date: 1/1/1998

The relative slip between ribbed steel bars and concrete produces radial cracks in the reinforced concrete elements subjected to tensile forces. The bond stress is directly connected to the radial cracking through a complex mechanism related to the lost of the confinement of the bar due to cracking. Ribbed bar geometry, concrete fracture properties and concrete cover are some of the governing parameters which control the bond capacity. However, a model describing accurately the very complex mechanisms involved is still lacking. This paper presents the results of an experimental research carried out to study craking in prismatic concrete specimens with an embedded ribbed steel bar subjected to tension. The tests have been developed for two bar diameters and three concrete covers. This work was carried out in accordance with the invitation of the "Round Robin Analysis and Tests on Bond" of RILEM.

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