USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Prestressing Steel and Concrete Variables Affecting Transfer Length in Pretensioned Concrete Crossties

Document Series:
Research Results
Author:
  • Federal Railroad Administration
Report Number
RR 21-03
Office
RDI-21
Subject:
Track
Keywords:
Concrete railroad ties, crossties, transfer length, transmission length, prestressed concrete, pretensioned concrete, indented wire
Document

This report highlights advances in understanding the prestressing steel and concrete properties that affect the transfer length (TL) in pretensioned concrete crossties. Transfer length values in pretensioned concrete ties are highly dependent on the type of wire indentation pattern used and the concrete strength at the time of detensioning. ASTM Standard A1096 pullout values and the correlation expression developed in this study can accurately predict the resulting TL.


Last updated: Friday, April 2, 2021