Zagadnienie przyczepności w betonie zbrojonym: przegląd stanu wiedzy

Hosseini, S. J. A.; Koushfar, K.; Rahman, A. B. A.; Razavi, M.

Artykuł - szczegóły

Tytuł artykułu

Zagadnienie przyczepności w betonie zbrojonym: przegląd stanu wiedzy

Autorzy

Hosseini S. J. A. , Koushfar K. , Rahman A. B. A. , Razavi M.

Wybrane pełne teksty z tego czasopisma

http://www.cementwapnobeton.pl/

Identyfikatory

Warianty tytułu

The bond behaviour in reinforced concrete: state of the art

Języki publikacji

PL EN

Abstrakty

W artykule omówiono wyniki ostatnich prac badawczych dotyczących przyczepności matrycy cementowej do prętów zbrojeniowych w betonie. Celem tej prezentacji było wyjaśnienie niektórych ważnych problemów i przedstawienie stanu tego ważnego dla betonów konstrukcyjnych zagadnienia. Szczegółowo omówiono różne rodzaje wiązań oraz czynniki mające wpływ na każdy z nich. Właściwości mechaniczne betonu mają decydujący wpływ na przyczepność, a ponieważ zniszczenie wiązań może nastąpić przez rozciąganie, ścinanie i zginanie więc wytrzymałość tego kompozytu uważana jest za najważniejszy czynnik. Równocześnie liczne badania wykazują znaczny wpływ skrępowania betonu na wytrzymałość wiązania matrycy ze zbrojeniem. Z przeglądu ostatnich prac badawczych autorzy wyciągają wniosek konieczności wprowadzenia norm na badania przyczepności, które ułatwią osiągnięcie dalszego postępu w zrozumieniu właściwości tego wiązania.

In the paper the results of recent studies of the reinforcement bars-cement matrix bond are presented, in order to clarify some important issues and to provide the state of the art of this subject. Different kinds of bond were discussed and the factors influencing each of them were described in details. The concrete properties is governing the bond behaviour and since bond failure can occur by tensile and shearing of the concrete, the strength of this composite is considered to be the decisive factor. Simultaneously, the significant effect on the bond strength of the concrete confinement is clearly shown in several studies. On the basis of recent studies discussion, the authors came to the conclusion of the necessity of the standard tests introduction, which will help to make further progress in the understanding of this bond behaviour.

Słowa kluczowe

beton zbrojenie przyczepność mechanizm adhezja tarcie zazębienie utrata przyczepności beton skrępowany

concrete reinforcement bond mechanism adhesion friction interlocking bond failure confined concrete

Wydawca

Fundacja Cement, Wapno, Beton

Czasopismo

Cement Wapno Beton

Rocznik

2014

Tom

R. 19/81, nr 2

Strony

93--105

Opis fizyczny

Bibliogr. 52 poz., il.

Twórcy

autor

Hosseini S. J. A.

Faculty of Civil Engineering, University Technology Malaysia, Johor, Malaysia

autor

Koushfar K.

Faculty of Civil Engineering, University Technology Malaysia, Johor, Malaysia

autor

Rahman A. B. A.

Faculty of Civil Engineering, University Technology Malaysia, Johor, Malaysia

autor

Razavi M.

Faculty of Civil Engineering, University Technology Malaysia, Johor, Malaysia

Bibliografia

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Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-66376a35-3597-40fc-b036-111a624474a0