Flexural behavior of two-span continuous prestressed concrete girders with highly eccentric external tendors
Article
Article Title | Flexural behavior of two-span continuous prestressed concrete girders with highly eccentric external tendors |
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ERA Journal ID | 4142 |
Article Category | Article |
Authors | Aravinthan, Thiru (Author), Witchukreangkrai, Eakarat (Author) and Mutsuyoshi, Hiroshi (Author) |
Journal Title | ACI Structural Journal |
Journal Citation | 102 (3), pp. 402-411 |
Article Number | 102-S40 |
Year | 2005 |
Publisher | American Concrete Institute |
Place of Publication | United States |
ISSN | 0889-3241 |
1944-7361 | |
Web Address (URL) | http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP |
Abstract | [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. |
Keywords | flexure, girders, prestressed concrete |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | Published version and permission supplied by publisher. |
Byline Affiliations | Department of Agricultural, Civil and Environmental Engineering |
Saitama University, Japan |
https://research.usq.edu.au/item/9x96y/flexural-behavior-of-two-span-continuous-prestressed-concrete-girders-with-highly-eccentric-external-tendors
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