Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Fillet weld eccentricity to plate axial load

Status
Not open for further replies.

SuG89

Structural
Aug 10, 2014
118
Hello,

Please refer to the attached image. For the design check of the shown line fillet weld as per AISC and AWS, do I need to consider the eccentricity of weld tip to the plate axial load 'P'? Or is it acceptable to design the fillet weld only for 'P' and ignore the bending moment?

Regards,
Su
 
 https://files.engineering.com/getfile.aspx?folder=3d67d11c-193a-427f-88a5-f82fdf44391a&file=Image.PNG
Replies continue below

Recommended for you

I don't think you want to do that. The detail is just wrong.
You would be putting an eccentric load on a weld - inducing tension in the re-entrant corner of the fillet. Not a good idea in my view.

Need to weld to both sides of the joint to create a pure shear stress in each weld's throat. Or add a side stiffener plate (perpendicular to the weld shown) with fillet weld along it to to create a weld pattern (T- pattern) where shear stresses are developed on a "T" pattern and you avoid "bending" the weld along its long axis.



Check out Eng-Tips Forum's Policies here:
faq731-376
 
Hello JAE,

Thanks for your response!
Do I need to consider the bending of weld along its long axis when a CJP weld is used? If yes. would it be correct to use half of vertical plate thickness as the eccentricity value for bending moment calculation? See the attached image.

Regards,
Su
 
 https://files.engineering.com/getfile.aspx?folder=f92d113f-3f4a-4813-a38f-3a0d81082983&file=Image.PNG
With a CJP weld it should behave exactly like a homogenous "T" shaped piece of steel with no eccentricity and no bending.

Check out Eng-Tips Forum's Policies here:
faq731-376
 
Thank you very much JAE!

Regards,
Su
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor