AWS D1.5M/D1.5:2015

AWS D1.5M/D1.5:2015 covers the welding requirements for AASHTO welded highway bridges made from carbon and low-alloy constructional steels. This 2015 edition contains dimensions in metric SI Units and U.S. Customary Units. Clauses 1 through 7 constitute a body of rules for the regulation of welding in steel construction. The provisions for Clause 9 have been distributed throughout the D1.5 code. Clauses 8, 10, and 11 do not contain provisions, as their analogue D1.1 sections are not applicable to the D1.5 code. Clause 12 contains the requirements for fabricating fracture critical members.

1.1 Application 1.1.1 This code covers welding fabrication requirements applicable to welded highway bridges. The code is applicable to both shop and field fabrication of steel bridges and bridge components. The code is to be used in conjunction with the AASHTO Standard Specification for Highway Bridges or the AASHTO LRFD Bridge Design Specifications.

The code is not intended to be used for the following:

• (1) Steels with a minimum specified yield strength greater than 690 MPa [100 ksi]
• (2) Pressure vessels or pressure piping
• (3) Base metals other than carbon or low-alloy steels
• (4) Structures composed of structural tubing

Fabrication of structures or components not specifically addressed by this code shall be performed in conformance with the special provisions of the contract or in conformance with the written directives of the Engineer who may choose to reference an alternate applicable welding standard.