Title:
Flexural Cracking Behavior of Pretensioned I- and T-Beams
Author(s):
Edward G. Nawy and Julius G. Potyondy
Publication:
Journal Proceedings
Volume:
68
Issue:
5
Appears on pages(s):
355-360
Keywords:
beams (supports); crack width and spacing; cracking (fracturing); flexural strength; I-beams; mathematical models; partial prestressing: prestressed concrete; pretensioning; research; strains;stresses; T-beams.
DOI:
10.14359/11334
Date:
5/1/1971
Abstract:
Information is limited on the flexural cracking behavior and crack width development of prestressed beams. Twenty-two pretensioned concrete I- and T-beams having a 9-ft span and prestressed with 1/4 in. diameter 7-wire strands are tested to failure and the results analyzed. A cracking hypothesis for prestressed concrete is presented and an expression relating the maximum weighted crack width to the controlling parameters is given.