Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/66150
DC FieldValue
dc.titleShear Deficiency in Reinforced Concrete Continuous Beams Strengthened with External Tendons
dc.contributor.authorTan, K.-H.
dc.contributor.authorTjandra, R.A.
dc.date.accessioned2014-06-17T08:24:50Z
dc.date.available2014-06-17T08:24:50Z
dc.date.issued2003-09
dc.identifier.citationTan, K.-H.,Tjandra, R.A. (2003-09). Shear Deficiency in Reinforced Concrete Continuous Beams Strengthened with External Tendons. ACI Structural Journal 100 (5) : 565-572. ScholarBank@NUS Repository.
dc.identifier.issn08893241
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/66150
dc.description.abstractExternal tendons provide a relatively simple means to strengthen reinforced concrete beams in flexure. The increase in flexural capacity of the beams, however, is not always accompanied by an equivalent increase in shear capacity. In this study, the shear deficiency in continuous beams strengthened with external tendons was investigated. Tests carried out on four two-span continuous beams demonstrated that the strengthened beam could fail in shear, particularly at the high-shear region near the interior support, due to the limited increase in shear capacity. An analytical study is presented to explain and further examine the phenomenon in beams strengthened with eight variations of tendon profiles. Two practical profiles, straight and draped, were then selected for a parametric study that was carried out to establish design charts for the purpose of checking the shear capacity of the strengthened beams. In general, straight tendon proflies, although attractive due to their simplicity, lead to relatively high shear forces in the strengthened beams. Adopting a draped or parabolic tendon profile with large eccentricity would reduce shear force, thereby minimizing the risk of shear failure in the strengthened beams.
dc.sourceScopus
dc.subjectContinuous beam
dc.subjectPrestressing
dc.subjectShear
dc.subjectStrength
dc.typeArticle
dc.contributor.departmentCIVIL ENGINEERING
dc.description.sourcetitleACI Structural Journal
dc.description.volume100
dc.description.issue5
dc.description.page565-572
dc.description.codenASTJE
dc.identifier.isiutNOT_IN_WOS
Appears in Collections:Staff Publications

Show simple item record
Files in This Item:
There are no files associated with this item.

Page view(s)

81
checked on Jun 14, 2019

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.