[en] This study investigates moment redistribution phenomenon for pin ended double-span steel-concrete
continuous composite beams and arise a question about moment redistribution for the continuous
beams subjected to partially distributed or concentrated loading conditions. The overall objective of
the study is to propose a methodology to fulfil the technical gaps adopted by Eurocode-4, which
considers the redistribution for only uniformly load condition. A robust iterative algorithm is
developed to obtain moment-curvature relations of the standard composite cross-sections. Flexural
stiffness-curvature relations of the cross-sections are predicted through the moment-curvature
relations. Flexural stiffness distribution along the composite beams is determined with curvature
compatibility. Fourth order differential load-deflection equation is evaluated with finite difference
solution scheme for continuous beam conditions and variable flexural stiffness along the beam length.
A non-iterative incremental load-deflection algorithm is developed to calculate moment distribution
in continuous beams with variable flexural stiffness. A benchmark example is solved with Eurocode-
4 provisions to validate the developed algorithms. Moment redistribution from hogging (negative)
zone to sagging (positive) zone of uniformly loaded double-span continuous composite beam is
illustrated considering the degree of flexural stiffness degradation in the composite medium. A
question is arisen for moment redistribution in the continuous beams subjected to partially distributed
or concentrated loading conditions.
Research center :
University of Luxemburg
Disciplines :
Civil engineering
Author, co-author :
Yolacan, Taygun Firat ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Schäfer, Markus ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
External co-authors :
no
Language :
English
Title :
Investigation of the moment redistribution for steel concrete continuous beams
Publication date :
18 September 2019
Event name :
The 14th Nordic Steel Construction Conference
Event place :
Copenhagen, Denmark
Event date :
September 17 - 21, 2019
By request :
Yes
Audience :
International
Main work title :
The 14th Nordic Steel Construction Conference
Publisher :
Wiley Online Library
Collection name :
Vol.3(3-4)
Pages :
251-256
Peer reviewed :
Peer reviewed
Focus Area :
Physics and Materials Science
FnR Project :
FNR12651094 - Fast Erection Of Steel Structures For Buildings, 2018 (15/11/2018-14/05/2022) - Markus Schaefer