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

This paper presents the results of experimental tests on splice connectors joining two main steel bars. The objective was to investigate bond strength, slip and failure modes of the connected steel bars confined by the grouted sleeve connectors. A total of 21 grouted splice connectors were tested un...

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Main Authors: Hosseini, Seyed Jamal Aldin, Abd. Rahman, Ahmad Baharuddin
Format: Article
Published: Construction Research Institute of Malaysia 2015
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/58436/
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spelling my.utm.584362022-04-07T06:04:19Z http://eprints.utm.my/id/eprint/58436/ Effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector Hosseini, Seyed Jamal Aldin Abd. Rahman, Ahmad Baharuddin TA Engineering (General). Civil engineering (General) This paper presents the results of experimental tests on splice connectors joining two main steel bars. The objective was to investigate bond strength, slip and failure modes of the connected steel bars confined by the grouted sleeve connectors. A total of 21 grouted splice connectors were tested until failure under increasing axial load. Each sleeve connector consisted of steel pipe, steel spiral with vertical bars and cement grout. The key parameter was the diameter of the spiral reinforcement which confined the splicing of two steel reinforcement bars. The effects of spiral diameter of 35, 45, 55, 65, 75 and 85 mm on the bond strength and slip were critically investigated. The test results indicate that specimens with smaller spiral reinforcement accompanied by four shear keys provide greater bond strength. The improvement in bond strength is due to the confinement provided by the spiral reinforcement which eventually increases the axial tension capacity of the sleeve connector. Construction Research Institute of Malaysia 2015 Article PeerReviewed Hosseini, Seyed Jamal Aldin and Abd. Rahman, Ahmad Baharuddin (2015) Effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector. Malaysian Construction Research Journal, 12 (1). pp. 1-19. ISSN 0019-7858
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Hosseini, Seyed Jamal Aldin
Abd. Rahman, Ahmad Baharuddin
Effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector
description This paper presents the results of experimental tests on splice connectors joining two main steel bars. The objective was to investigate bond strength, slip and failure modes of the connected steel bars confined by the grouted sleeve connectors. A total of 21 grouted splice connectors were tested until failure under increasing axial load. Each sleeve connector consisted of steel pipe, steel spiral with vertical bars and cement grout. The key parameter was the diameter of the spiral reinforcement which confined the splicing of two steel reinforcement bars. The effects of spiral diameter of 35, 45, 55, 65, 75 and 85 mm on the bond strength and slip were critically investigated. The test results indicate that specimens with smaller spiral reinforcement accompanied by four shear keys provide greater bond strength. The improvement in bond strength is due to the confinement provided by the spiral reinforcement which eventually increases the axial tension capacity of the sleeve connector.
format Article
author Hosseini, Seyed Jamal Aldin
Abd. Rahman, Ahmad Baharuddin
author_facet Hosseini, Seyed Jamal Aldin
Abd. Rahman, Ahmad Baharuddin
author_sort Hosseini, Seyed Jamal Aldin
title Effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector
title_short Effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector
title_full Effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector
title_fullStr Effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector
title_full_unstemmed Effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector
title_sort effects of spiral diameter on the bond stress-slip relationship in grouted sleeve connector
publisher Construction Research Institute of Malaysia
publishDate 2015
url http://eprints.utm.my/id/eprint/58436/
_version_ 1729703229155966976
score 13.211869

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