Flexural behavior of two-span continuous prestressed concrete girders with highly eccentric external tendors

Aravinthan, Thiru and Witchukreangkrai, Eakarat and Mutsuyoshi, Hiroshi (2005) Flexural behavior of two-span continuous prestressed concrete girders with highly eccentric external tendors. ACI Structural Journal, 102 (3). pp. 402-411. ISSN 0889-3241

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[Abstract]: It is generally known that the flexural strength of beams prestressed with external tendons is comparatively lower than that of members with internal bonded tendons. One possible method of enhancing the flexural strength of such beams is to place the tendons at high eccentricity. To obtain an insight into the flexural behavior of beams with highly eccentric tendons, an experimental investigation is conducted on single-span and two-span continuous beams. The test variables include external tendon profile, loading pattern on each span, casting method, and confinement reinforcements. It is found that continuous girders with linearly transformed tendon profiles exhibit the same flexural behavior irrespective of tendon layout. The presence of confinement reinforcement enhances the ductility behavior but does not increase the ultimate flexural strength. The degree of moment redistribution is affected by the tendon layout and the loading pattern on each span. The results of the experimental investigation are discussed in this paper.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version and permission supplied by publisher.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 13 Feb 2008 00:45
Last Modified: 02 Jul 2013 22:33
Uncontrolled Keywords: flexure, girders, prestressed concrete
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
Identification Number or DOI: 102-S40
URI: http://eprints.usq.edu.au/id/eprint/570

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