The extensive use of high strength prestressing steel requires an evalution of crack width development in prestressed concrete structures.
The object of this research is to experimentally investigate the cracking behavior on the partially investig...
The extensive use of high strength prestressing steel requires an evalution of crack width development in prestressed concrete structures.
The object of this research is to experimentally investigate the cracking behavior on the partially investigate the cracking behavior on the partially prestressed concrete T-beams and to compare the test results with the formula presented for the prediction of the maximum flexural crack spacing and width in members with reinforcing and prestrssing.
The test results indicate that the effect of prestressing on the control of creack width is clear under service load, but increment of crack width is rapid as the degree of prestress is high. The formula for the prediction of creack width in reinforced concrete members without prestressing is used with some modification. Numerical comparisons of the test results and Nawy and Huang formula for the prediction of crack width in prestressed concrete members indicate more satisfactory agreement than the formula for the prediction of crack width in reinforced concrete members with some modification.