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Overview of high-strength screw thread reinforcement used in pre-stressed structures
- Authors: Grishin G.E.1, Tikhonov G.I.1,2, Okolnikova G.E.2
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Affiliations:
- Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev of JSC Research Center of Construction
- Peoples’ Friendship University of Russia (RUDN University)
- Issue: Vol 21, No 1 (2020)
- Pages: 81-93
- Section: Civil Engineering (Construction)
- URL: https://journals.rudn.ru/engineering-researches/article/view/24655
- DOI: https://doi.org/10.22363/2312-8143-2020-21-1-81-93
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Abstract
Article provides an overview of the world and domestic samples of high-strength threaded rebar for pre-stress in concrete structures. First of all, their technical characteristics were analyzed that affect the speed of installation of buildings and structures and the metal content of reinforced concrete structures used in them. We also consider the individual characteristics of the profile of rebar that are specific to individual countries, followed by an assessment of their behavior in reinforced concrete structures. Special attention is paid to domestic developments in this direction, in order to assess the competitiveness of innovative profiles both within Russia and on the world market. One of the most important developments in recent years in our country is the rebar class Av1000P, the history of which described in the second chapter of this review. The reason for the development of this profile was significant problems related to the crack resistance, thrust and endurance of previous types of thread and periodic profiles of high-strength rebar products. In addition to the reinforcement profiles, a high-speed method of joining and anchoring with the help of coupling threaded connections was partially considered, which is only possible on a screw profile armature without labor-intensive threading on rods.
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About the authors
Grigorii E. Grishin
Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev of JSC Research Center of Construction
Author for correspondence.
Email: okolnikova-ge@rudn.ru
postgraduate student, design engineer of Design Center No. 25 of NIIZHB named after A.A. Gvozdev
6 2-ya Institutskaya St, bldg. 5, Moscow, 109428, Russian FederationGeorgy I. Tikhonov
Research Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev of JSC Research Center of Construction; Peoples’ Friendship University of Russia (RUDN University)
Email: okolnikova-ge@rudn.ru
postgraduate student of the Department of Construction of Engineering Academy of RUDN University, design engineer of Design Center No. 25 of NIIZHB named after A.A. Gvozdev
6 2-ya Institutskaya St, bldg. 5, Moscow, 109428, Russian Federation; 6 Miklukho-Maklaya St, Moscow, 117198, Russian FederationGalina E. Okolnikova
Peoples’ Friendship University of Russia (RUDN University)
Email: okolnikova-ge@rudn.ru
Associate Professor of the Department of Construction of Engineering Academy of RUDN University, Candidate of Technical Sciences, Associate Professor
6 Miklukho-Maklaya St, Moscow, 117198, Russian FederationReferences
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