Cover plate development length
Cover plate development length
(OP)
How does one calculate the development length for cover plates welded to WF beam flanges to increase the section modulus?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
Cover plate development length
|
Cover plate development lengthCover plate development length(OP)
How does one calculate the development length for cover plates welded to WF beam flanges to increase the section modulus?
Red Flag SubmittedThank you for helping keep Eng-Tips Forums free from inappropriate posts. Reply To This ThreadPosting in the Eng-Tips forums is a member-only feature.Click Here to join Eng-Tips and talk with other members! |
ResourcesThe world has changed considerably since the 1980s, when CAD first started displacing drafting tables. Download Now
Prototyping has always been a critical part of product development. Download Now
As the cloud is increasingly adopted for product development, questions remain as to just how cloud software tools compare to on-premise solutions. Download Now
Engineering-centric businesses face a number of challenges today, but unmanageable design and change processes don’t need to be counted among them. Download Now
|
RE: Cover plate development length
RE: Cover plate development length
RE: Cover plate development length
RE: Cover plate development length
Check shear flow.
RE: Cover plate development length
RE: Cover plate development length
RE: Cover plate development length
That's interesting? Why do you skinny it up at the ends? I prefer to keep the plate wider than the flange so the welding doesn't have to be done overhead. If the cover plate is wider than the flange the weld gets deposited from the top and it's a pretty standard fillet weld.
I try to avoid overhead welding, when possible.
RE: Cover plate development length
That is just the typical detail I have seen used on bridges.
I just wanted to stress that cross flange welding is not perfered.
Also, I would suspect that the welds are done in the shop not in the field.
And to your point, a wider plate would only eliminate overhead weld on the bottom cover plate. It would create an overhead weld on the top cover plate.
RE: Cover plate development length
I see your point. I guess I assumed that if you're adding a plate that it's a field fix. If you have to add a plate in the shop, why not just pick a heavier beam?
RE: Cover plate development length
see figure 8.6.2.1 here:
http://
RE: Cover plate development length
RE: Cover plate development length
thread507-160349: cover plates
RE: Cover plate development length
RE: Cover plate development length
There is a 'development length' but this tends to be shorter than you need for a single pass weld. I have seen the stress flow shown diagrammatically as 45 degree lines from the edges into the centre of the plate and that is the way I envisage it.
Just remember that you are assuming uniform stress in the plate at the point of the splice but are applying the weld force at the edges.
never use a plate with a width greater than the weld length on each side as I would expect this will have problems with stress flow.