Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Crack Resistance of Tension Reinforced Concrete Members with Bond Failure Areas
https://orcid.org/http://orcid.org/0000-0001-6662-4519
https://orcid.org/http://orcid.org/0000-0003-0081-4680
https://orcid.org/http://orcid.org/0000-0002-8063-1878
https://orcid.org/http://orcid.org/0000-0003-2415-2087
The paper presents a method for estimating the crack formation force and crack width for centrically tension reinforced concrete members with bond failure areas between reinforcement and concrete. The method is based on the theory of compound bars and allows to consider an unlimited number of bond failure areas and their unspecified location. The concrete behavior is presented in the form of an idealized Prandtl diagram. The behavior of the reinforcement is considered only on the elastic section up to the yield stress. The article presents a theoretical assessment of the influence of bond failure areas on the process of formation and development of cracks. The crack width is considered as the difference between the strains of concrete and rebar, taking into account the influence of the strain capacity of their bonding in the area between two adjacent cracks. Experimental investigations have been carried out, which confirm the correctness of the theoretical model and good agreement with the experimental data. The test program included 3 series of specimens with different lengths of the bond failure area. The first two series consisted of 3 specimens, with the length of the bond failure area equal to 300 mm and 600 mm of the total length of the member. The third series consisted of 2 specimens with ensured bonding along the entire length of the members. A total of 8 specimens were made. Experimental data on the influence of bond failure areas on the process of crack formation in tension members are presented.
Crack Resistance of Tension Reinforced Concrete Members with Bond Failure Areas
https://orcid.org/http://orcid.org/0000-0001-6662-4519
https://orcid.org/http://orcid.org/0000-0003-0081-4680
https://orcid.org/http://orcid.org/0000-0002-8063-1878
https://orcid.org/http://orcid.org/0000-0003-2415-2087
The paper presents a method for estimating the crack formation force and crack width for centrically tension reinforced concrete members with bond failure areas between reinforcement and concrete. The method is based on the theory of compound bars and allows to consider an unlimited number of bond failure areas and their unspecified location. The concrete behavior is presented in the form of an idealized Prandtl diagram. The behavior of the reinforcement is considered only on the elastic section up to the yield stress. The article presents a theoretical assessment of the influence of bond failure areas on the process of formation and development of cracks. The crack width is considered as the difference between the strains of concrete and rebar, taking into account the influence of the strain capacity of their bonding in the area between two adjacent cracks. Experimental investigations have been carried out, which confirm the correctness of the theoretical model and good agreement with the experimental data. The test program included 3 series of specimens with different lengths of the bond failure area. The first two series consisted of 3 specimens, with the length of the bond failure area equal to 300 mm and 600 mm of the total length of the member. The third series consisted of 2 specimens with ensured bonding along the entire length of the members. A total of 8 specimens were made. Experimental data on the influence of bond failure areas on the process of crack formation in tension members are presented.
Crack Resistance of Tension Reinforced Concrete Members with Bond Failure Areas
https://orcid.org/http://orcid.org/0000-0001-6662-4519
https://orcid.org/http://orcid.org/0000-0003-0081-4680
https://orcid.org/http://orcid.org/0000-0002-8063-1878
https://orcid.org/http://orcid.org/0000-0003-2415-2087
The paper presents a method for estimating the crack formation force and crack width for centrically tension reinforced concrete members with bond failure areas between reinforcement and concrete. The method is based on the theory of compound bars and allows to consider an unlimited number of bond failure areas and their unspecified location. The concrete behavior is presented in the form of an idealized Prandtl diagram. The behavior of the reinforcement is considered only on the elastic section up to the yield stress. The article presents a theoretical assessment of the influence of bond failure areas on the process of formation and development of cracks. The crack width is considered as the difference between the strains of concrete and rebar, taking into account the influence of the strain capacity of their bonding in the area between two adjacent cracks. Experimental investigations have been carried out, which confirm the correctness of the theoretical model and good agreement with the experimental data. The test program included 3 series of specimens with different lengths of the bond failure area. The first two series consisted of 3 specimens, with the length of the bond failure area equal to 300 mm and 600 mm of the total length of the member. The third series consisted of 2 specimens with ensured bonding along the entire length of the members. A total of 8 specimens were made. Experimental data on the influence of bond failure areas on the process of crack formation in tension members are presented.
Crack Resistance of Tension Reinforced Concrete Members with Bond Failure Areas
Lecture Notes in Civil Engineering
Vatin, Nikolai (Herausgeber:in) / Roshchina, Svetlana (Herausgeber:in) / Serdjuks, Dmitrijs (Herausgeber:in) / Rudniy, Igor (Autor:in) / Vorontsova, Natalia (Autor:in) / Korolkov, Dmitry (Autor:in) / Pachulia, Pavel (Autor:in)
30.01.2022
15 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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