Performance of axially loaded polyvinyl-chloride fibrous concrete filled tube short columns

Concrete Filled Tube (CFT) columns represent an effective alternative to conventional reinforced concrete columns. Recently, there have been trials to replace steel encasing tubes with Polyvinyl-Chloride (PVC) tubes for the enhancement of columns performance. The use of fibrous concrete as the core...

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Main Authors: Ahmed F. Ahmed, Ahmed S. Elmannaey, Hala E.E. Fouad
Format: Article
Language:English
Published: Elsevier 2024-05-01
Series:Ain Shams Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2090447924000844
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author Ahmed F. Ahmed
Ahmed S. Elmannaey
Hala E.E. Fouad
author_facet Ahmed F. Ahmed
Ahmed S. Elmannaey
Hala E.E. Fouad
author_sort Ahmed F. Ahmed
collection DOAJ
description Concrete Filled Tube (CFT) columns represent an effective alternative to conventional reinforced concrete columns. Recently, there have been trials to replace steel encasing tubes with Polyvinyl-Chloride (PVC) tubes for the enhancement of columns performance. The use of fibrous concrete as the core of such columns still needs more focus. In this study, glass fibrous concrete was used to fabricate PVC CFT (PCFT) short columns. PVC tubes thickness, tube roughness and lateral PVC supporting ties were the adopted parameters herein. These columns were tested in compression and their vertical and lateral deformations were monitored during loading. It was concluded that PCFT columns have generally shown higher axial capacity and ductility in comparison to concrete core. The best performance was related to PCFT columns with rough interface which showed axial capacity of about two thirds and ductility of about three folds higher than concrete core. Also, the use of lateral ties along the column height showed reasonable results, but the installation method of these ties needs to be modified to reach better results. Based on the experimental program, a design formula was deduced to predict short PCFT columns capacity with an error of about 8%.
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spelling doaj.art-cebc8425a1fb4b8085f788252d488f482024-03-28T06:37:42ZengElsevierAin Shams Engineering Journal2090-44792024-05-01155102709Performance of axially loaded polyvinyl-chloride fibrous concrete filled tube short columnsAhmed F. Ahmed0Ahmed S. Elmannaey1Hala E.E. Fouad2Concrete Structures Research Institute, Housing and Building National Research Center, Giza, EgyptConstruction Engineering Department, Faculty of Engineering, Misr University for Science and Technology, Egypt; Corresponding author at: Room 326, Construction Engineering Department, Faculty of Engineering, Misr University for Science and Technology, EgyptConstruction Engineering Department, Faculty of Engineering, Misr University for Science and Technology, EgyptConcrete Filled Tube (CFT) columns represent an effective alternative to conventional reinforced concrete columns. Recently, there have been trials to replace steel encasing tubes with Polyvinyl-Chloride (PVC) tubes for the enhancement of columns performance. The use of fibrous concrete as the core of such columns still needs more focus. In this study, glass fibrous concrete was used to fabricate PVC CFT (PCFT) short columns. PVC tubes thickness, tube roughness and lateral PVC supporting ties were the adopted parameters herein. These columns were tested in compression and their vertical and lateral deformations were monitored during loading. It was concluded that PCFT columns have generally shown higher axial capacity and ductility in comparison to concrete core. The best performance was related to PCFT columns with rough interface which showed axial capacity of about two thirds and ductility of about three folds higher than concrete core. Also, the use of lateral ties along the column height showed reasonable results, but the installation method of these ties needs to be modified to reach better results. Based on the experimental program, a design formula was deduced to predict short PCFT columns capacity with an error of about 8%.http://www.sciencedirect.com/science/article/pii/S2090447924000844PVCConcrete filled tubesAxial capacityDuctilityHoop stresses
spellingShingle Ahmed F. Ahmed
Ahmed S. Elmannaey
Hala E.E. Fouad
Performance of axially loaded polyvinyl-chloride fibrous concrete filled tube short columns
Ain Shams Engineering Journal
PVC
Concrete filled tubes
Axial capacity
Ductility
Hoop stresses
title Performance of axially loaded polyvinyl-chloride fibrous concrete filled tube short columns
title_full Performance of axially loaded polyvinyl-chloride fibrous concrete filled tube short columns
title_fullStr Performance of axially loaded polyvinyl-chloride fibrous concrete filled tube short columns
title_full_unstemmed Performance of axially loaded polyvinyl-chloride fibrous concrete filled tube short columns
title_short Performance of axially loaded polyvinyl-chloride fibrous concrete filled tube short columns
title_sort performance of axially loaded polyvinyl chloride fibrous concrete filled tube short columns
topic PVC
Concrete filled tubes
Axial capacity
Ductility
Hoop stresses
url http://www.sciencedirect.com/science/article/pii/S2090447924000844
work_keys_str_mv AT ahmedfahmed performanceofaxiallyloadedpolyvinylchloridefibrousconcretefilledtubeshortcolumns
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AT halaeefouad performanceofaxiallyloadedpolyvinylchloridefibrousconcretefilledtubeshortcolumns