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  1. rmp319

    welding roof decking

    Woodman, AWS D1.3 Structrual welding code - Sheet Steel will cover the issues for welding roof decking and qualifying welders. The use of sheet metal screws is usually covered in job specs and manufacturer's specs.
  2. rmp319

    Thread lenght requirements ( after torque)

    Woodman, AISC Specifications for Structrual Joints using ASTM A325 or A490 bolts Par 2(b) "The length of bolts shall be such that the end of the bolt will be flush with or outside the face of the nut when properly installed" This specification usually applies if you are dealing with...
  3. rmp319

    Heating & welding high strength bolts

    dbags, The reference made states "Anchor Bolt material...". This subject is quite confusing. Below is a reply from AISC posted on the AWS Forum on whether or not HSB's could be welded. This constantly comes up for field applications and I wish a definitive code source was available to...
  4. rmp319

    Heating & welding high strength bolts

    dbags, Where in the 9th edition is this information listed???
  5. rmp319

    Metal Embrittlement in galvanized bolts

    Metalguy, I ran the lines together, sorry. Thanks for the answer.
  6. rmp319

    Metal Embrittlement in galvanized bolts

    Kenvalch, You mentioned ASTM does not allow for galvanizing of bolts. I have always thought A325 were allowed. ASD Ninth Ed. 5-291 states "ASTM specifications provide for the galvanizing of A325 bolts but not A490. Galvanizing of A490 bolts is not permitted.". I am aware of the...
  7. rmp319

    Partial pen double bevel groove weld

    The Tolerances AS DETAILED allowance is Unlimited and the As Fit-up allowance for (f) is +/- 1/16". Based on this, a detailed joint as you described could have a 0.0" (f) root face and the fit up allowance of +/- 1/16 (f). Section 3.12.3 allow for the use of the stated Tolerances on...
  8. rmp319

    Plug weld specifications

    ASW D1.1:2000 Section 2.5 2.5.1 Effective Area 2.5.2 Minimum Spacing (Plug Weld) 2.5.3 Minimum Spacking (Slot Welds) 2.5.4 Slot Ends (...semicircular) 2.5.5 Prequalified Dimensions 2.5.6 Prohibition in Q&T Steel 2.5.7 Limitations
  9. rmp319

    Welding HS Bolts

    I am following a Thread on another forum regarding welding or tacking of HS A325 bolts heads to main members for ease in erection. Some are stating the engineers are approving and/or requesting this process. Does anyone have any Code references which would prohibit this action or other input...
  10. rmp319

    AISC Code of Standard practice, Sec

    Togel, I have had this issue come up on many projects. AISC is fairly plain about what information should be provided to the Fabricator/Detailer to allow for correct interpretation of the Design Documents. Many design drawings are vague or pertinent information is missing, based on the amount...
  11. rmp319

    AISC Code of Standard practice, Sec

    What do you mean by "scrubbing"??
  12. rmp319

    Safety issue / Grizzly

    Pia, Try www.MSHA.gov and search their site for Guards and equipment access. You should find what you are looking for. web.http://www.msha.gov/s%26hinfo/smallmine/equipguard.ppt Robert
  13. rmp319

    Buried Column Bases and Corrosion

    In our area (So. Calif.), the columns and base plates are not shop primed below slab. You may check UBC-97 Section 1906.3.6.2. This refers to pipe in concrete. Also of interest is why reinforcement bars are not painted or coated to protect from corrosion.
  14. rmp319

    repair of crack in steel pipe that conttains oil.

    We have repaired steel tanks holding oil and diesel and found great success with pre-heating the area around the repair prior to welding. This tends to bake out any contaminates and at least in our applications, eliminated porosity and defective welds.
  15. rmp319

    Definition of Weld Undercut?

    I agree with Pipewelder and offer the following: AWS A3.0 Standard Welding Terms Undercut - A groove melted into the base metal adjacent to the weld toe or weld root and left unfilled by weld metal. Acceptance Criteria (sheet metal) ANSI/AWS D1.3-98 see 6.1.1.3 Undercut "The cumulative...
  16. rmp319

    Checking Bolt Torque

    Find the Ninth Edition of AISC Manual of Steel Contruction and look in Section 5 for Bolds, Threaded Parts and Rivets. This manual offers information on Torque, washers, tension etc. Mostly geared to Structural Steel but has a wealth of information for general bolting requirements.
  17. rmp319

    AWS Certification Question

    AWS Certification for welders (D1.1) is directed at the abilty of the welder to be able to weld without discontunities. I have run a structural steel fabrication shop for many years and am amazed at the lack of knowledge with AWS Certified Welders. 1. They apply for a position and do not even...

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