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Title: Evaluation of Crack Width in Reinforced Concrete Beams Subjected to Variable Load
Authors: Arangjelovski Toni
Markovski Goran
Nakov Darko
Issue Date: Oct-2018
Publisher: Taylor & Francis Group
Source: Caspeele, R. (Ed.), Taerwe, L. (Ed.), Frangopol, D. M. (Ed.). (2019). Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision. London: CRC Press,
Conference: Life Cycle Analysis and Assessment in Civil Engineering: Towards an Integrated Vision, Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE 2018)
Abstract: In this paper, the influence of loading histories of variable (imposed) actions on the behavior of reinforced concrete beams was analyzed especially the crack width was analyzed. For the evaluation of long-term effects (effects due to creep and shrinkage in concrete structures), quasi-permanent combination of ac-tions was used to verify the reversible limit state. An experimental program and analytical research was per-formed to compare the experimentally obtained results of crack width and results of proposed calculation models given in EN 1992-1-1 Eurocode 2 and in the fib Model code 2010. For two specific loading histories, of series of beams D and E, the quasi-permanent coefficient ψ2 was defined using the quasi-permanent combi-nation of actions. These loading histories were consisting of long-term permanent action G and repeated vari-able action Q. The variable load was applied in cycles of loading/unloading for 24 and 48 hours in the period of 330 days. A total of eight reinforced concrete beams, dimensions 15/28/300cm were tested. Four beams were made of concrete class C30/37 and four beams of concrete class C60/75.
Appears in Collections:Faculty of Civil Engineering: Conference papers

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