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History of Strands Diameter and Spacing in Precast/Prestressed Girder

Technical Development in the United States of America


The objective of this paper is to present the history of strands diameter and spacing in precast/prestressed girder applications in the United States. Strands diameter, horizontal and vertical spacing directly affect the transfer and development lengths of girders, which in turn would control its design, fabrication, and erection aspects and procedures. Thus, significant amount of research projects were conducted by the Federal Highway Administration (FHWA) and State Departments of Transportation (DOTs) to investigate the effect of strands diameter and spacing on girder’s capacity and relevant design, fabrication, and erection issues.

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CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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