The History of the Prestressing Strand Development Length Equation PDF Download

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The History of the Prestressing Strand Development Length Equation

The History of the Prestressing Strand Development Length Equation PDF Author: Habib Tabatabai
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 116

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Book Description
A research study was conducted to determine the history of the AASHTO prestressing strand development length equation and to evaluate the significance, with respect to development length, of changes in the AASHTO provisions for the determination of steel stress at ultimate flexural strength. The accuracy of the AASHTO provisions in determining steel stress at ultimate flexural strength was also evaluated for a number of typical cross sections used in bridge construction. The strand development length equation was first introduced in the 1963 ACI Building Code and was adopted by AASHTO in 1973. The original research that formed the basis for the equation was conducted at the Portland Cement Association (PCA) in the late 1950s and early 1960s.