Abstract
The main advantages and disadvantages of using non-metallic composite reinforcement as a reinforcing element of bending concrete structures without pre-stressing are considered. The characteristics of composite and steel reinforcement are compared. Numerical comparative analysis of strength and deformation characteristics of bending concrete elements with plastic and steel reinforcement is performed. It is established that to ensure the strength of the normal sections of the bending elements, the consumption of non-metallic reinforcement is up to 40% higher than that of steel reinforcement. Results of calculations on deformations according to which rigidity of the bending designs reinforced with steel reinforcement is 15-20% higher, than for reinforced with non-metallic reinforcement are presented. The conclusion is substantiated that the use of non-metallic composite reinforcement in non-stressed bendable concrete structures is impractical. Recommendations on the possible use of plastic reinforcement in building structures are presented, as well as directions and prospects for further research are outlined.
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