The Structural Engineer > Archive > Volume 47 (1969) > Issues > Issue 12 > Test Performances and Design of Concrete Beams with Limited Pre-Stress
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Test Performances and Design of Concrete Beams with Limited Pre-Stress

A series of tests is reported on 40 beams in which the total amount of steel and the amount pre-stressed was varied. Most of the beams were reinforced and pre-stressed with 5 mm (0.2 in) diameter wires, while there were a few tests of beams with pre-tensioned strand and beams with post-tensioned wires. The programme included tests under short-term, sustained and repeated loading. The results are used to analyse the stress in the tensioned and untensioned steel and to consider the factors affecting the flexural strength, crack width and deflection in order to make tentative recommendations for limit state calculations. E.W. Bennett and N.J. Dave

Author(s): Bennett, E W;Dave, N J

Keywords: prestressed concrete;beams;design;performance;post tensioning;tests;partial prestressing