Arching Action Revisited

Reinforced concrete and elastic-tensionless strips transversally loaded and restrained against longitudinal displacements at supports are considered. The support restraints induce important axial forces and that results in a highly nonlinear and unstable character of the structure response. A commer...

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Main Authors: M. Janas, J. Sokół-Supel, J. Supel
Format: Article
Language:English
Published: Institute of Fundamental Technological Research 2015-06-01
Series:Engineering Transactions
Online Access:https://et.ippt.pan.pl/index.php/et/article/view/682
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author M. Janas
J. Sokół-Supel
J. Supel
author_facet M. Janas
J. Sokół-Supel
J. Supel
author_sort M. Janas
collection DOAJ
description Reinforced concrete and elastic-tensionless strips transversally loaded and restrained against longitudinal displacements at supports are considered. The support restraints induce important axial forces and that results in a highly nonlinear and unstable character of the structure response. A commercial FEM code is used and the results are compared with those obtained from an approximate approach based upon the post-yield methodology, proposed years ago by the authors. The latter approach neglects elastic flexural deformations but accounts for axial compliance of the system and furnishes simple analytical expressions for the load vs. displacement relations. It appears from the FEM analysis that the flexural compliance has a negligible impact on the peak-load behaviour. The approximate approach gives satisfactory results, when compliance moduli for the structure and for restraining walls are appropriately chosen. Benchmark cases considered allowed for a proposition concerning determination of these moduli.
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institution Kabale University
issn 0867-888X
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language English
publishDate 2015-06-01
publisher Institute of Fundamental Technological Research
record_format Article
series Engineering Transactions
spelling doaj-art-22ca44070ea94c38bcd5b4c6b03d129c2025-08-20T03:49:54ZengInstitute of Fundamental Technological ResearchEngineering Transactions0867-888X2450-80712015-06-0145110.24423/engtrans.682.1997Arching Action RevisitedM. Janas0J. Sokół-Supel1J. Supel2Polish Academy of SciencesPolish Academy of SciencesPolish Academy of SciencesReinforced concrete and elastic-tensionless strips transversally loaded and restrained against longitudinal displacements at supports are considered. The support restraints induce important axial forces and that results in a highly nonlinear and unstable character of the structure response. A commercial FEM code is used and the results are compared with those obtained from an approximate approach based upon the post-yield methodology, proposed years ago by the authors. The latter approach neglects elastic flexural deformations but accounts for axial compliance of the system and furnishes simple analytical expressions for the load vs. displacement relations. It appears from the FEM analysis that the flexural compliance has a negligible impact on the peak-load behaviour. The approximate approach gives satisfactory results, when compliance moduli for the structure and for restraining walls are appropriately chosen. Benchmark cases considered allowed for a proposition concerning determination of these moduli.https://et.ippt.pan.pl/index.php/et/article/view/682
spellingShingle M. Janas
J. Sokół-Supel
J. Supel
Arching Action Revisited
Engineering Transactions
title Arching Action Revisited
title_full Arching Action Revisited
title_fullStr Arching Action Revisited
title_full_unstemmed Arching Action Revisited
title_short Arching Action Revisited
title_sort arching action revisited
url https://et.ippt.pan.pl/index.php/et/article/view/682
work_keys_str_mv AT mjanas archingactionrevisited
AT jsokołsupel archingactionrevisited
AT jsupel archingactionrevisited