2014 NCS UPDATE for AASHTO/AWS D1.5

2014 NCS UPDATE for 2014 NCS UPDATE for AASHTO/AWS D1.5AASHTO/AWS D1.5


Boring or interesting?

Boring? Interesting!


D1 changes officers in October 2014

• Duane Miller completes term as D1 Chair• Allen Sindel - Chair• Todd Niemann – 1st Vice Chair• Ronnie Medlock – 2nd Vice Chair


AWS adds staff to support D1 Committees

•Two Staff for D1 Brian McGrathSteve Borrero


Meet twice per year• Spring meetings at AWS

Headquarters• Fall meetings move around

country• Public meetings

D1.5 Dual Governed by AWS D1 committee and AASHTO T-17

Holding HandsHolding Hands

AASHTO and AWS agreed to a new AASHTO and AWS agreed to a new organizational structure for D1.5 organizational structure for D1.5 Committee. Committee.

6 AASHTO Members6 AASHTO Members

6 AWS Members6 AWS Members

6 General Interest6 General Interest

MembersMembers

D1.5 Membership -- 18 voting member

AASHTO Members•Todd Niemann – MnDOT •Mary Grieco – Mass Hwy Dept •Kent Nelson – MODOT •Kevin Ledford – GaDOT•Steve Duke – FlDOT•Nina Choy – CaDOT

AWS MEMBERS •Dave McQuaid - Consultant (Chair•Ronnie Medlock – High Steel (Vice Chair)•Heather Gilmer – Florida Structural Steel•Karl Frank – Hirschfield Industries•Nate Lindell – Oregon Iron Works•Buck Roberds – Industrial Steel

General Interest Members•Duane Miller – Lincoln Electric•Dean Phillips – Hobart Brothers•Chuck Holmes – Modjeski & Masters• Jon Edwards – DOTQS• Robert Stachel – HRV• Ray Stieve – Greenman-Pederson

Happy Times?Happy Times?

Next Publishing: 2015Next Publishing: 2015

Proforma Ballot is assembly of all Proforma Ballot is assembly of all materials that have been balloted and materials that have been balloted and approved by D1J, D1 Main Committee, approved by D1J, D1 Main Committee, and AASHTO SCOB.and AASHTO SCOB.Proforma Ballot has been assembled, not Proforma Ballot has been assembled, not yet balloted.yet balloted.

List of approved ballot items:List of approved ballot items:•FC Preheat Tables•Vision Acuity for inspectors•Flange warpage and tilt•Web Distortion•Tub girders•PQR Limits•MT Yoke Lifting Power•DC Pulsed for MT•Various Figure 2.4 corrections of preapproved details

List of approved ballot items (Cont.)List of approved ballot items (Cont.)•Weld Profiles•Preheat and Interpass measurements•Weld Backing•Grinding Undercut•Procedure Qualification•HPS 100W replaces 100W•Cored Wire Removal for FC commentary•Non-Standard Joint Details•Fillet Weld Soundness Requirements•PQR Heat Input Calculations

What’s Up…..What’s Up…..Ongoing Topics and Current Ongoing Topics and Current Activities Activities

• Broken Tack Weld Commentary

• PAUT• Reinforcement •Removal

Ongoing Topics and Current Activities Ongoing Topics and Current Activities

Frequent Fabrication Issues• Dimensional Tolerances for Rolled Beams • Bending Requirements• Laser and water-jet cutting• Assembly

• The D1.5 code is a welding code and not a do all fabrication code.

• Issues that need to be addressed what’s the right place and group, AASHTO, AWS, NSBA, ????

A Closer Look at ChangesA Closer Look at Changes

Interesting for some…yetsnoozer for others

MTMT

Error in Clause 6 table regarding lifting Error in Clause 6 table regarding lifting power of MT Yoke.power of MT Yoke.

• 10lbs lifting power needed for AC or DC 10lbs lifting power needed for AC or DC Yokes.Yokes.

• Consistent with ASTM now.Consistent with ASTM now.

Added Pulsed DC as acceptable MT Added Pulsed DC as acceptable MT method.method.

Tub GirdersTub Girders

Change to 3.5.1.7 Change to 3.5.1.7 Address measuring Address measuring

warpage and tilt of warpage and tilt of flanges for on tub flanges for on tub girders.girders.

Different when webs Different when webs are not perpendicular are not perpendicular to flangesto flanges

Preheat and InterpassPreheat and Interpass

Clarified that preheat or minimum Clarified that preheat or minimum interpass temperature has to be interpass temperature has to be maintained throughout welding the maintained throughout welding the joint and 3” in all directions.joint and 3” in all directions.

Preheat measured at location of Preheat measured at location of welding arc.welding arc.

Established that maximum interpass Established that maximum interpass will be measure within 1”-3” from joint will be measure within 1”-3” from joint face edge just prior to next pass.face edge just prior to next pass.

Web FlatnessWeb Flatness

Provided better instruction and Provided better instruction and description for proper ways of description for proper ways of measuring web flatness.measuring web flatness.

Revised Code and CommentaryRevised Code and Commentary Added sketch to Commentary.Added sketch to Commentary.

Preapproved JointsPreapproved Joints

Fixed a number of Fixed a number of errors in the figures errors in the figures for preapproved for preapproved joints.joints.

Clarified when Clarified when reinforcing fillets reinforcing fillets are required.are required.

Weld ProfilesWeld Profiles

Changes requested by AWS Changes requested by AWS Certification Department to clarify Certification Department to clarify acceptability of bead shape and acceptability of bead shape and undercut.undercut.

Sets convexity limits.Sets convexity limits. Clarifies removal of weld Clarifies removal of weld

reinforcementreinforcement Clarifies surface finishClarifies surface finish

Weld ReinforcementWeld Reinforcement

Improved wording on Improved wording on how it should be how it should be done properly.done properly.

Establishes criteria Establishes criteria for unacceptable for unacceptable undergrinding when undergrinding when reinforcement is reinforcement is removed.removed.

Procedure QualificationProcedure Qualification Significant changes in Procedure Significant changes in Procedure

Qualification Qualification • Heat input qualificationHeat input qualification

Continue to use variable limits but allow broader Continue to use variable limits but allow broader voltage with new amperage chart.voltage with new amperage chart.

• Production Procedure QualificationProduction Procedure QualificationRemoved variable limits and use variables as Removed variable limits and use variables as qualified by test (similar to D1.1)qualified by test (similar to D1.1)

• Fillet WeldsFillet WeldsSingle pass fillets no longer qualified by groove Single pass fillets no longer qualified by groove test but rather fillet weld soundness.test but rather fillet weld soundness.

PQR DurationPQR Duration

Non-Fracture Critical – Valid Non-Fracture Critical – Valid indefinitely unless WPS indefinitely unless WPS produces substandard welds.produces substandard welds.

FC – Extended to 5 year FC – Extended to 5 year durationduration

The End

Means Grandpa’scoming home.

Documents

2014 NCS UPDATE for AASHTO/AWS D1.5