Strains and self-stresses estimation in the expansive concrete members reinforced with GFRP bars

• Autorzy: Tur V. , Semianiuk V.
• Języki publikacji: EN

Abstrakty

EN

Advantages of the self-stressed concrete members with FRP reinforcement are described. Analytical model for the restrained expansion strains (self-stresses) estimation in the self-stressed concrete members reinforced with FRP bars is proposed. Established modified strains development model (MSDM) is based on deformation compatibility approach in combination with taking into account imposed internal force in reinforcement as an additional restriction for the expansion strains development. Comparison of experimentally established and predicted data that was obtained in accordance with the proposed model for the case of GFRP bars uniaxially symmetrically reinforced high expansion energy capacity concrete members is presented. Verification of the proposed MSDM has shown a good agreement between calculated and experimental values that indicates its validity for the design of the self-stressed concrete members with GFRP reinforcement.

Słowa kluczowe

EN

expansive concrete; GFRP bars; restrained strain; self-stress; estimation model

PL

beton; GFRP; estymacja modelu

• Wydawca: Centrum Rzeczoznawstwa Budowlanego Sp. z o.o.
• Czasopismo: Inżynieria Bezpieczeństwa Obiektów Antropogenicznych
• Rocznik: 2016
• Tom: Nr 4
• Strony: 3--9
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Tur V.

• Head of Department of Concrete Technology and Building Materials, Brest State Technical University

autor

Semianiuk V.

Bibliografia

• 1. CNR-DT 203/2006, 2007, Guide for the design and construction of concrete structures reinforced with fiber-reinforced polymer bars, Advisory Committee on Technical Recommendations for Construction, Rome.
• 2. Król M., Tur V., 1998, Beton ekspansywny, Arkady, Warszawa.
• 3. TKP 45-5.03-158-2009, 2010, Concrete and reinforced concrete structures from self-stressing concrete, Design rules, Mińsk (in Russian).
• 4. Tsuj i Y., 19 84, Methods of estimating chemical prestress and expansion distribution in expansive concrete subjected to uniaxial restraint, Concrete Library of JSCE,JVb3,p. 131-143.
• 5. Ito H. et al., 2004, Early age deformation and resultant induced stress in expansive high strength concrete, Journal of Advanced Concrete Technology, N°2, p. 155-174.
• 6. Lei X. et al., 2007, Expansive performance of self-stressing and self-compacting concrete confined with steel tubę, Journal of Wuhan University of Technology, p. 341-345.
• 7. Tur V., 1998, Experimental-theoretical basics of the structures prestressing by expansive concrete utilizing, Brest Sate Technical University, Brest (in Russian).
• 8. fib Model Code, 2010, vol. l, Lausanne, Switzerland.
• 9. EN 1992-1 (Eurocode 2), Design of Concrete Structure. General Rules and Rules for Building.
• 10. STB 1335-2002, Expansive cement, Technical specifications, Mińsk (in Russian).
• 11. EN 196-1, Method of testing cement, Determination of strength.
• 12. EN 206, Concrete - specification, performance, production and conformity.
• 13. EN 12390-3, Testing hardened concrete, Compressive strength of test specimens.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.