Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)

A Master of Science thesis in Civil Engineering by Yosri Izzeldin Hassan Abdelmageed entitled, “Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)”, submitted in December 2019. Thesis advisor is Dr. Farid Abed. Soft copy is available (Thesis, Approval Si...

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Main Author: Abdelmageed, Yosri Izzeldin Hassan (author)
Format: doctoralThesis
Published: 2019
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Online Access:http://hdl.handle.net/11073/16576
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author Abdelmageed, Yosri Izzeldin Hassan
author_facet Abdelmageed, Yosri Izzeldin Hassan
author_role author
dc.contributor.none.fl_str_mv Abed, Farid
dc.creator.none.fl_str_mv Abdelmageed, Yosri Izzeldin Hassan
dc.date.none.fl_str_mv 2019-12
2020-01-26T07:13:43Z
2020-01-26T07:13:43Z
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.identifier.none.fl_str_mv 35.232-2019.64
http://hdl.handle.net/11073/16576
dc.language.none.fl_str_mv en_US
dc.subject.none.fl_str_mv Concrete-filled steel tubes
Recycled aggregate concrete
Flexural behaviour
Design codes
dc.title.none.fl_str_mv Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/doctoralThesis
description A Master of Science thesis in Civil Engineering by Yosri Izzeldin Hassan Abdelmageed entitled, “Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)”, submitted in December 2019. Thesis advisor is Dr. Farid Abed. Soft copy is available (Thesis, Approval Signatures, Completion Certificate, and AUS Archives Consent Form).
format doctoralThesis
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identifier_str_mv 35.232-2019.64
language_invalid_str_mv en_US
network_acronym_str aus
network_name_str aus
oai_identifier_str oai:repository.aus.edu:11073/16576
publishDate 2019
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spelling Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)Abdelmageed, Yosri Izzeldin HassanConcrete-filled steel tubesRecycled aggregate concreteFlexural behaviourDesign codesA Master of Science thesis in Civil Engineering by Yosri Izzeldin Hassan Abdelmageed entitled, “Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)”, submitted in December 2019. Thesis advisor is Dr. Farid Abed. Soft copy is available (Thesis, Approval Signatures, Completion Certificate, and AUS Archives Consent Form).Concrete-filled steel tubes (CFSTs) can be considered as possible and promising alternative to conventional reinforced concrete members and steel structures since they have superior structural properties and economic advantages. In recent years, researchers have investigated the replacement of natural aggregate concrete (NAC) infill with recycled aggregate concrete (RAC) and utilizing the confinement provided by the steel tube in order to improve the mechanical properties of recycled aggregate concrete (RACFST). However, the research on RACFSTs has been limited to their behaviour under compression. The main goal of this research is to investigate the flexural response of RACFSTs experimentally and theoretically considering circular and rectangular cross-sections. For this purpose, a total of 12 circular and 8 rectangular CFST beams with different Diameter-to-thickness (D/t) and depth-to-thickness (h/t) ratios were tested under four-point bending. Concrete compressive strengths of 30 and 50 MPa and recycled coarse aggregate replacement percentages of 50 and 100% were used in the experimental investigation. The test results revealed promising outcomes on the feasibility of using RAC in CFST systems under flexure. The flexural behaviour of RACFSTs was found to be very similar to NACFSTs, and the change in the concrete compressive strength and the recycled coarse aggregate replacement percentage slightly affected the flexural behaviour of RACFSTs. In addition, the experimental flexural capacity of RACFST beams were compared to the theoretical nominal moments predicted by well-known design codes and methods including the AISC-LRFD, the Architectural Institute of Japan (AIJ), EuroCode4, the British Standard (BS) and Han’s method. The AIJ design code was the most accurate to predict the flexural capacity of RACFSTs followed by the EuroCode4 as they underestimated the flexural capacity of RACFST beams by an average of 5% and 12%, while the British Standard significantly underestimated the flexural capacity of the tested RACFST beams by an average of 34%.College of EngineeringDepartment of Civil EngineeringMaster of Science in Civil Engineering (MSCE)Abed, Farid2020-01-26T07:13:43Z2020-01-26T07:13:43Z2019-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfapplication/pdf35.232-2019.64http://hdl.handle.net/11073/16576en_USoai:repository.aus.edu:11073/165762025-06-26T12:30:57Z
spellingShingle Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)
Abdelmageed, Yosri Izzeldin Hassan
Concrete-filled steel tubes
Recycled aggregate concrete
Flexural behaviour
Design codes
status_str publishedVersion
title Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)
title_full Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)
title_fullStr Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)
title_full_unstemmed Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)
title_short Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)
title_sort Flexural Behavior of Concrete-Filled Steel Tubes (CFSTs) using Recycled Aggregate Concrete (RAC)
topic Concrete-filled steel tubes
Recycled aggregate concrete
Flexural behaviour
Design codes
url http://hdl.handle.net/11073/16576