Abstract
An analysis is given of the possibility of using glass-composite non-metallic reinforcement in compressed concrete elements. The results of comparison of studies of strength and deformability with high-strength composite and steel (class A800) working reinforcement in our country and abroad are presented. Proposals are given for further research of composite reinforcement as longitudinal in compressed elements.
Highlights
Reinforced concrete compressed elements are the main load-bearing vertical structures of buildings and structures for various purposes, taking the load from floors and coverings, transferring it to the foundation and further to the base soils
If the applied load acts for a long time, due to the creep of concrete, the ultimate compressibility increases, the design compressive strength of the reinforcement can be increased to 500 MPa, the actual compressive stresses can reach large values
The studies carried out show that nonmetallic glass-composite reinforcement, with a reasonable setting of transverse reinforcement, can be used in compressed elements with a bearing capacity of only 5% less than similar samples with steel reinforcement
Summary
Reinforced concrete compressed elements are the main load-bearing vertical structures of buildings and structures for various purposes, taking the load from floors and coverings, transferring it to the foundation and further to the base soils. There is an optimization of the already proven structural solutions of reinforced concrete structures [2, 3]. Reinforcement in reinforced concrete structures is used primarily to absorb tensile forces and reinforce concrete in compressed zones of structures. In the normative document on the design of reinforced concrete structures [4], the normative and design characteristics of the reinforcement in tension and compression are assigned. The tensile work of the reinforcement is determined by its physical and mechanical characteristics (yield point and elastic modulus) obtained during testing
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