Effects of spiral on the bond stress-slip relationship in the splice sleeve connector

Connections are defined as the system to transmit the forces among the precast element and provide the strength and ductility. Therefore, the connection system of the precast concrete structure must be designed in such way that its structural performance is equivalent to that of a monolithic concret...

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Main Author:	Aldin Hosseini, Seyed Jamal
Format:	Thesis
Language:	English
Published:	2012
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/37965/5/SeyedJamalAldinMFKA2012.pdf
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id	my-utm-ep.37965
record_format	uketd_dc
spelling	my-utm-ep.379652018-05-27T08:16:38Z Effects of spiral on the bond stress-slip relationship in the splice sleeve connector 2012-01 Aldin Hosseini, Seyed Jamal TA Engineering (General). Civil engineering (General) Connections are defined as the system to transmit the forces among the precast element and provide the strength and ductility. Therefore, the connection system of the precast concrete structure must be designed in such way that its structural performance is equivalent to that of a monolithic concrete structure. Connections can exactly be as the critical points of a precast concrete structure especially when it involves in the aspect of bonding between reinforcement and concrete. Current study evaluates the relationship of the bond stress-slip of reinforcing bar joined by spliced sleeve connectors. Twenty one specimens in which three of them were control specimen with different variables such as pitch distance and spiral diameter. Those splice sleeve connectors utilized mild steel pipe, spiral surrounding the main bar and four steel bars as a shear keys that were welded into the inner surface of steel pipe. All the specimens were filled with Sika grout 215 and tested under incrementally tensile load. The experimental tests examined the bond stress, slip and failure modes. The results suggest that reducing the pitch distance and spiral diameter of spiral lead to higher ultimate bond stress. Also, the splice sleeve connector with pitch distance of 25mm contributed to the ultimate bond stress with lower amplitude of slip. It means that the pitch distance of 25mm has the main role to control the range of slip in comparison with the others. Thus, using the spiral with a smaller pitch distance will give the best performance of the splices sleeve connector. 2012-01 Thesis http://eprints.utm.my/id/eprint/37965/ http://eprints.utm.my/id/eprint/37965/5/SeyedJamalAldinMFKA2012.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Aldin Hosseini, Seyed Jamal Effects of spiral on the bond stress-slip relationship in the splice sleeve connector
description	Connections are defined as the system to transmit the forces among the precast element and provide the strength and ductility. Therefore, the connection system of the precast concrete structure must be designed in such way that its structural performance is equivalent to that of a monolithic concrete structure. Connections can exactly be as the critical points of a precast concrete structure especially when it involves in the aspect of bonding between reinforcement and concrete. Current study evaluates the relationship of the bond stress-slip of reinforcing bar joined by spliced sleeve connectors. Twenty one specimens in which three of them were control specimen with different variables such as pitch distance and spiral diameter. Those splice sleeve connectors utilized mild steel pipe, spiral surrounding the main bar and four steel bars as a shear keys that were welded into the inner surface of steel pipe. All the specimens were filled with Sika grout 215 and tested under incrementally tensile load. The experimental tests examined the bond stress, slip and failure modes. The results suggest that reducing the pitch distance and spiral diameter of spiral lead to higher ultimate bond stress. Also, the splice sleeve connector with pitch distance of 25mm contributed to the ultimate bond stress with lower amplitude of slip. It means that the pitch distance of 25mm has the main role to control the range of slip in comparison with the others. Thus, using the spiral with a smaller pitch distance will give the best performance of the splices sleeve connector.
format	Thesis
qualification_level	Master's degree
author	Aldin Hosseini, Seyed Jamal
author_facet	Aldin Hosseini, Seyed Jamal
author_sort	Aldin Hosseini, Seyed Jamal
title	Effects of spiral on the bond stress-slip relationship in the splice sleeve connector
title_short	Effects of spiral on the bond stress-slip relationship in the splice sleeve connector
title_full	Effects of spiral on the bond stress-slip relationship in the splice sleeve connector
title_fullStr	Effects of spiral on the bond stress-slip relationship in the splice sleeve connector
title_full_unstemmed	Effects of spiral on the bond stress-slip relationship in the splice sleeve connector
title_sort	effects of spiral on the bond stress-slip relationship in the splice sleeve connector
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2012
url	http://eprints.utm.my/id/eprint/37965/5/SeyedJamalAldinMFKA2012.pdf
_version_	1747816514272100352

Effects of spiral on the bond stress-slip relationship in the splice sleeve connector

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