Minimum Reinforcement for Crack Width Control in RC Tensile Elements

New approach using direct crack width calculations of the minimum reinforcement in tensile RC elements is presented. Verification involves checking whether the provided reinforcement ensures that the crack width that may result from the thermal-shrinkage effects does not exceed the limit value. The...

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Main Authors: Knauff M., Grzeszykowski B., Golubińska A.
Format: Article
Language:English
Published: Polish Academy of Sciences 2019-03-01
Series:Archives of Civil Engineering
Subjects:
Online Access:http://www.degruyter.com/view/j/ace.2019.65.issue-1/ace-2019-0008/ace-2019-0008.xml?format=INT
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author Knauff M.
Grzeszykowski B.
Golubińska A.
author_facet Knauff M.
Grzeszykowski B.
Golubińska A.
author_sort Knauff M.
collection DOAJ
description New approach using direct crack width calculations of the minimum reinforcement in tensile RC elements is presented. Verification involves checking whether the provided reinforcement ensures that the crack width that may result from the thermal-shrinkage effects does not exceed the limit value. The Eurocode provisions were enriched with addendums derived from the German national annex. Three levels of accuracy of the analysis were defined - the higher the level applied, the more significant reduction in the amount of reinforcement required can be achieved. A methodology of determining the minimum reinforcement for crack width control on the example of a RC retaining wall is presented. In the analysis the influence of residual and restraint stresses caused by hydration heat release and shrinkage was considered.
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spelling doaj.art-6eb4f50a57bb4c84aab274d7517b22d02022-12-22T00:41:23ZengPolish Academy of SciencesArchives of Civil Engineering1230-29452019-03-0165111112810.2478/ace-2019-0008ace-2019-0008Minimum Reinforcement for Crack Width Control in RC Tensile ElementsKnauff M.0Grzeszykowski B.1Golubińska A.2Prof., DSc., PhD., Eng., Warsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandM.Eng., Warsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandPhD., Eng., Warsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandNew approach using direct crack width calculations of the minimum reinforcement in tensile RC elements is presented. Verification involves checking whether the provided reinforcement ensures that the crack width that may result from the thermal-shrinkage effects does not exceed the limit value. The Eurocode provisions were enriched with addendums derived from the German national annex. Three levels of accuracy of the analysis were defined - the higher the level applied, the more significant reduction in the amount of reinforcement required can be achieved. A methodology of determining the minimum reinforcement for crack width control on the example of a RC retaining wall is presented. In the analysis the influence of residual and restraint stresses caused by hydration heat release and shrinkage was considered.http://www.degruyter.com/view/j/ace.2019.65.issue-1/ace-2019-0008/ace-2019-0008.xml?format=INTreinforced concreteminimum reinforcementcrackingcrack controlcrack widthshrinkagehydration heatrestraint and residual stresses
spellingShingle Knauff M.
Grzeszykowski B.
Golubińska A.
Minimum Reinforcement for Crack Width Control in RC Tensile Elements
Archives of Civil Engineering
reinforced concrete
minimum reinforcement
cracking
crack control
crack width
shrinkage
hydration heat
restraint and residual stresses
title Minimum Reinforcement for Crack Width Control in RC Tensile Elements
title_full Minimum Reinforcement for Crack Width Control in RC Tensile Elements
title_fullStr Minimum Reinforcement for Crack Width Control in RC Tensile Elements
title_full_unstemmed Minimum Reinforcement for Crack Width Control in RC Tensile Elements
title_short Minimum Reinforcement for Crack Width Control in RC Tensile Elements
title_sort minimum reinforcement for crack width control in rc tensile elements
topic reinforced concrete
minimum reinforcement
cracking
crack control
crack width
shrinkage
hydration heat
restraint and residual stresses
url http://www.degruyter.com/view/j/ace.2019.65.issue-1/ace-2019-0008/ace-2019-0008.xml?format=INT
work_keys_str_mv AT knauffm minimumreinforcementforcrackwidthcontrolinrctensileelements
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AT golubinskaa minimumreinforcementforcrackwidthcontrolinrctensileelements