High Strength Bolts for Bridges (with Addendum of April 14, 1994). DemonstrationProject No. 88

摘要

In the mid 1980's a number of problems developed during the installation of high-strength bolts in bridge structures. Because improperly manufactured and installed and poorly inspected fasteners can precipitate structural failures, FHWA sponsored a research project at the University of Texas to determine various problems concerning manufacturing and installation o high-strength bolts for bridges, and to make recommendations toward resolving them. Upon completion of this work, FHWA issued the 'Supplemental Contract Specifications for projects with AASHTO M164 (A325) H.S. Bolts' in 1989 in order to provide uniform manufacturing and installation requirements. This specification was developed as a supplement to the AASHTO Materials Specifications.