JOINTS IN CONCRETES OF DIFFERENT AGE AND TYPE
https://doi.org/10.31675/1607-1859-2020-22-6-94-104
Abstract
The performance and structural reliability of concrete-to-concrete joints play an important role in precast-cast-in-place constructions, since they are responsible for deformation of concretes of different age, type and strength. The paper studies the effect of the joint type on its bearing capacity under shear loads. A horizontal test bench and a standard vertical press are used in the experiment to provide the shear load along the concrete-to-concrete joint (light cast-situ and heavy precast concretes). The following joint installing is considered: a smooth surface, which provides the concrete joint due to the adhesive and friction forces, and the joint provided by transverse reinforcement. Design features are identified for the joint bearing capacity exhaustion in concretes of different age, type and strength in precast-cast-in-place constructions under shear, depending on the joint type. A comparative analysis is given to the results obtained. It is shown that the transverse reinforcement has a positive effect on the bearing capacity of the concrete-to-concrete joints.
About the Authors
A. A. Koyankin
Siberian Federal University
Russian Federation
Russian Federation
Aleksandr A. Koyankin, PhD, A/Professor
79, Svobodnyi Ave., 660041, Krasnoyarsk
V. M. Mitasov
Novosibirsk State University of Architecture and Civil Engineering
Russian Federation
Russian Federation
Valery M. Mitasov, DSc, Professor
113, Leningradskaya Str., 630008
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Review
For citations:
Koyankin A.A., Mitasov V.M. JOINTS IN CONCRETES OF DIFFERENT AGE AND TYPE. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2020;22(6):94-104. (In Russ.) https://doi.org/10.31675/1607-1859-2020-22-6-94-104
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