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Description / Abstract:
INTRODUCTION
The intent of this Guide Specification for Highway Bridge
Fabrication With HPS 70W Steel, 2nd Edition, hereafter
referred to as the HPS Fab Guide is to provide owners, designers
and fabricators with the latest recommended methodology to
fabricate and weld structures using ASTM A709 or AASHTO M270, Grade
HPS 70W (HPS 485W) steel, referred to hereinafter as HPS 70W. The
HPS Fab Guide is recommended for use until such time that
other industry codes and specifications have included this product
and have provided the necessary regulatory provisions to
successfully fabricate bridges. The 2nd Edition is based on
continued research and experience with fabrication and welding, and
will be updated as additional research is conducted and additional
experience is gained. The latest in research and experience with
HPS 70W steel may be obtained by contacting the American Iron and
Steel Institute (AISI) website at www.steel.org.
HPS 70W is now furnished in as-rolled or control-rolled
condition, thermo-mechanical control processed (TMCP) or quenched
and tempered (Q