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AASHTO HBF

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AASHTO HBF

AASHTO HBF 2nd Edition, June 2003 GUIDE SPECIFICATION FOR HIGHWAY BRIDGE FABRICATION WITH HPS 70W (HPS 485W) STEEL

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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