Three post-tensioned unbonded beams were tested along with three bonded beams and the experimental test results are presented in this paper. The beams are rectangular in cross-section, simply supported and loaded at third-points. Development of cracking pattern, behaviour beyond the service loads and load-deflection response are of primary interest. The results of the tests are compared with those computed from the codes of the Indian Standards Institution and the American Concrete Institute.

Venkoji Rao, S.Vegh, Ludevit2026-02-05PRESTRESSEIndian Concrete Journal, 1986, 60, 2, pp. 40-44194565https://idr.nitk.ac.in/handle/123456789/281201986CONCRETE - CrackingCONCRETE CONSTRUCTION - PrestressingCONCRETE TESTING - CreepLOAD-DEFLECTION RESPONSEPOST-TENSIONED UNBONDED BEAMSRETENSIONINGULTIMATE MOMENT-CARRYING CAPACITYBEAMS AND GIRDERSThree post-tensioned unbonded beams were tested along with three bonded beams and the experimental test results are presented in this paper. The beams are rectangular in cross-section, simply supported and loaded at third-points. Development of cracking pattern, behaviour beyond the service loads and load-deflection response are of primary interest. The results of the tests are compared with those computed from the codes of the Indian Standards Institution and the American Concrete Institute.