The paper presents and compares four methods for visco-elastic analysis of steel-concrete composite beams. The method denoted as "exact" is based on the use of linear integro-differential operators and besides inevitable approximations of the rheological properties of constituent materials does not introduce other mathematical simplifications. The underlying assumption of the simplified method is that unknown deformations change linearly with the concrete creep function. In the paper, the results of the analysis of continuous composite beam obtained using the mentioned two methods are compared with results of widely used the Effective modulus method and its modified form proposed by Eurocode 4. Results have shown that the simplified method gives solutions closest to the “exact” analysis method.
Keywords:
viscoelastic analysis / composite beams / matrix stiffness method / linear integral operators
Source:
Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019, 2019
TY - CONF
AU - Kostić, Svetlana M.
AU - Deretic-Stojanovic, Biljana
PY - 2019
UR - https://grafar.grf.bg.ac.rs/handle/123456789/2128
AB - The paper presents and compares four methods for visco-elastic analysis of steel-concrete composite beams. The method denoted as "exact" is based on the use of linear integro-differential operators and besides inevitable approximations of the rheological properties of constituent materials does not introduce other mathematical simplifications. The underlying assumption of the simplified method is that unknown deformations change linearly with the concrete creep function. In the paper, the results of the analysis of continuous composite beam obtained using the mentioned two methods are compared with results of widely used the Effective modulus method and its modified form proposed by Eurocode 4. Results have shown that the simplified method gives solutions closest to the “exact” analysis method.
PB - Serbian Society of Mechanics
C3 - Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019
T1 - Comparison of different methods for viscoelastic analysis of composite beams
ER -
@conference{
author = "Kostić, Svetlana M. and Deretic-Stojanovic, Biljana",
year = "2019",
url = "https://grafar.grf.bg.ac.rs/handle/123456789/2128",
abstract = "The paper presents and compares four methods for visco-elastic analysis of steel-concrete composite beams. The method denoted as "exact" is based on the use of linear integro-differential operators and besides inevitable approximations of the rheological properties of constituent materials does not introduce other mathematical simplifications. The underlying assumption of the simplified method is that unknown deformations change linearly with the concrete creep function. In the paper, the results of the analysis of continuous composite beam obtained using the mentioned two methods are compared with results of widely used the Effective modulus method and its modified form proposed by Eurocode 4. Results have shown that the simplified method gives solutions closest to the “exact” analysis method.",
publisher = "Serbian Society of Mechanics",
journal = "Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019",
title = "Comparison of different methods for viscoelastic analysis of composite beams"
}
Kostić, S. M.,& Deretic-Stojanovic, B. (2019). Comparison of different methods for viscoelastic analysis of composite beams.
Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019
Serbian Society of Mechanics..
Kostić SM, Deretic-Stojanovic B. Comparison of different methods for viscoelastic analysis of composite beams. Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019. 2019;
Kostić Svetlana M., Deretic-Stojanovic Biljana, "Comparison of different methods for viscoelastic analysis of composite beams" Proceedings / The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019 (2019)
