Recent content by rmp319

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.

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...

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...

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

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

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...

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...

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

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...

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...

What do you mean by "scrubbing"??

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

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.

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.

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...