Investigation of the bearing capacity of reinforced concrete beams strengthened with reinforced concrete ring under load
Zinoviy Blikharskyy
Department of Building Constructions and Bridges; Lviv Polytechnic National University (Ukraine)
https://orcid.org/0000-0002-4823-6405
Dmytro Dubizhanskyy
Mechanical Engineering Department; Ternopil Ivan Pul’uj National Technical University (Ukraine)
Roman Khmil
Department of Building Constructions and Bridges; Lviv Polytechnic National University (Ukraine)
https://orcid.org/0000-0001-7578-8750
Abstract
Bearing capacity of normal cross section of bending concrete elements reinforced with reinforced concrete ring under load was investigated. Experimental researches of 4 sets of beams with the total number of 16 units were carried out. The results of changes of stress-strain state settings depending on the load level, additional reinforcement, influence of limit level load were analyzed. The three characteristic stages of stress-strain state of reinforced concrete beams strengthened with reinforced concrete ring were defined. Results of experimental investigations of bearing capacity of normal cross section of strengthened beams with reinforced concrete ring under load were presented. Enhancing effect was calculated. According to the results of researches of strengthened beams plots of strain of working armature depending on current bending moment were constructed.
Keywords:
reinforced concrete, normal cross sections, strengthening under load, reinforced concrete ring, bearing capacityReferences
Blikharskyy Z. Rekonstruktsiya ta pidsylennya budivel i sporud. [ Reconstruction and strengthening of buildings and structures]. NU «Lvivska politekhnika», Lviv 2008.
Google Scholar
Holyshev A. Raschet y tekhnycheskye reshenyya usylenyy zhelezobetonnykh konstruktsyy proyzvodstvennykh zdanyy i prosadochnykh osnovanyy. [Calculation and technical solutions of reinforced concrete structures of industrial buildings and bases subsidence]. Kyiv, Lohos, 2008. ISBN 978-966-581-966-0
Google Scholar
The Concrete Society, Technical Report No. 55, 2004: Design Guidance for strengthening conc-rete structures using fibre composite materials (Second Edition) „The Concrete Society, p.102.
Google Scholar
V. G. Kvasha, I. V. Melnik, M. D. Klimpush Eksperimentalne doslidjennya zalizobetonnoi mostovoi balki za TP vipusk 56, pidsilenoi kompozitnoyu strichkoyu z vuglecevikh volokon CFRP [Experimental research of reinforced concrete bridge beams for TP Vol. 56 reinforced composite tape of carbon fibers CFRP]// ZB. „Avtomobilni dorogi i dorozhnye budivnictvo. ” – Vip. 62. –– „Collection highways and road construction” –– Кyiv, 2001. – p. 267–271.
Google Scholar
Authors
Zinoviy BlikharskyyDepartment of Building Constructions and Bridges; Lviv Polytechnic National University Ukraine
https://orcid.org/0000-0002-4823-6405
Authors
Dmytro DubizhanskyyMechanical Engineering Department; Ternopil Ivan Pul’uj National Technical University Ukraine
Authors
Roman KhmilDepartment of Building Constructions and Bridges; Lviv Polytechnic National University Ukraine
https://orcid.org/0000-0001-7578-8750
Statistics
Abstract views: 220PDF downloads: 108
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Budownictwo i Architektura supports the open science program. The journal enables Open Access to their publications. Everyone can view, download and forward articles, provided that the terms of the license are respected.
Publishing of articles is possible after submitting a signed statement on the transfer of a license to the Journal.