Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands
A Master of Science thesis in Civil Engineering by Ahmad Towaiq entitled, "Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands," submitted in December 2016. Thesis advisor is Dr. Sami Tabsh. Soft and hard copy available. The most common type of lateral reinforcement...
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ftamerunishariah:oai:repository.aus.edu:11073/8768 2024-09-30T14:42:40+00:00 Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands Towaiq, Ahmad Tabsh, Sami 2016-12 application/pdf http://hdl.handle.net/11073/8768 en_US eng Master of Science in Civil Engineering (MSCE) 35.232-2016.51 http://hdl.handle.net/11073/8768 Column confinement ductility strength transverse reinforcement reinforced concrete Thesis 2016 ftamerunishariah 2024-09-13T08:54:23Z A Master of Science thesis in Civil Engineering by Ahmad Towaiq entitled, "Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands," submitted in December 2016. Thesis advisor is Dr. Sami Tabsh. Soft and hard copy available. The most common type of lateral reinforcement in reinforced concrete (RC) columns is rectilinear steel ties. Ties provide confinement to the concrete core increasing its compressive strength and ductility. Past studies have shown that tied columns fail while the stress in the ties is below the yield strength, which represents inefficient use of the material. Furthermore, ties are labor intensive making them costly and time-consuming to fabricate and install. Additionally, the presence of end hooks to anchor them into the concrete adds up to the material cost. A new method of lateral reinforcement is explored in this study where the concrete column core is confined by Internal Structural Steel Strip Bands (ISSSBs) in lieu of ties. These ISSSBs are cut from structural steel square or rectangular tubes. This method has the potential of improving the structural behavior of RC columns without increasing the amount of lateral steel. There are two main objectives for this study. The first one is to verify the feasibility of the use of ISSSBs as lateral reinforcement in RC columns, while the second is to develop design recommendations for columns transversely reinforced with ISSSBs. To achieve the stated objectives, five variables are considered: (1) aspect ratio of the cross section, (2) spacing of ISSSBs, (3) thickness to width ratio of the ISSSBs, (4) compressive strength of concrete, and (5) area of the column's cross-section. The experimental work involved the construction and testing of 25 short specimens with different configurations under concentric axial compression. On average, the results of the study showed that the use of ISSSBs can cause 5% increase in the strength, 65% increase in initial stiffness, and 20% increase in ductility of the concrete core compared to ... Thesis sami DSpace at AUS (American University of Sharjah) |
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Column confinement ductility strength transverse reinforcement reinforced concrete |
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Column confinement ductility strength transverse reinforcement reinforced concrete Towaiq, Ahmad Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands |
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Column confinement ductility strength transverse reinforcement reinforced concrete |
description |
A Master of Science thesis in Civil Engineering by Ahmad Towaiq entitled, "Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands," submitted in December 2016. Thesis advisor is Dr. Sami Tabsh. Soft and hard copy available. The most common type of lateral reinforcement in reinforced concrete (RC) columns is rectilinear steel ties. Ties provide confinement to the concrete core increasing its compressive strength and ductility. Past studies have shown that tied columns fail while the stress in the ties is below the yield strength, which represents inefficient use of the material. Furthermore, ties are labor intensive making them costly and time-consuming to fabricate and install. Additionally, the presence of end hooks to anchor them into the concrete adds up to the material cost. A new method of lateral reinforcement is explored in this study where the concrete column core is confined by Internal Structural Steel Strip Bands (ISSSBs) in lieu of ties. These ISSSBs are cut from structural steel square or rectangular tubes. This method has the potential of improving the structural behavior of RC columns without increasing the amount of lateral steel. There are two main objectives for this study. The first one is to verify the feasibility of the use of ISSSBs as lateral reinforcement in RC columns, while the second is to develop design recommendations for columns transversely reinforced with ISSSBs. To achieve the stated objectives, five variables are considered: (1) aspect ratio of the cross section, (2) spacing of ISSSBs, (3) thickness to width ratio of the ISSSBs, (4) compressive strength of concrete, and (5) area of the column's cross-section. The experimental work involved the construction and testing of 25 short specimens with different configurations under concentric axial compression. On average, the results of the study showed that the use of ISSSBs can cause 5% increase in the strength, 65% increase in initial stiffness, and 20% increase in ductility of the concrete core compared to ... |
author2 |
Tabsh, Sami |
format |
Thesis |
author |
Towaiq, Ahmad |
author_facet |
Towaiq, Ahmad |
author_sort |
Towaiq, Ahmad |
title |
Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands |
title_short |
Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands |
title_full |
Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands |
title_fullStr |
Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands |
title_full_unstemmed |
Lateral Confinement of RC Columns by Internal Structural Steel Strip Bands |
title_sort |
lateral confinement of rc columns by internal structural steel strip bands |
publishDate |
2016 |
url |
http://hdl.handle.net/11073/8768 |
genre |
sami |
genre_facet |
sami |
op_relation |
Master of Science in Civil Engineering (MSCE) 35.232-2016.51 http://hdl.handle.net/11073/8768 |
_version_ |
1811644582501285888 |