Welding Return. AWS D1.5

Date 08-18-2005 20:50

We are welding girders plates for a bridge and we are facing with a interpretation problem of code AWS D1.5 "Bridge Welding Code" about welding return around weld access hole.

According Figure 5.2 (AWS D1.1) "weld access hole geometry" point 4. the weld shall not be not returned through opening but the AWS D1.5 does not mention anything about it. According point 2.8.1.7 (AWS D1.5) fillet welds which support a tensile force that is not parallel to the axis of the weld shall not terminate at the corners of parts or members and shall be returned continuously around the corner.

The fillet weld is designed to join the web and flange of girders and they do not support other load than shear through the teorical throat. Do we we have to return the longitudinal fillet weld around the weld access hole or not? We believe we don't.

I´ll apreciate any sugestion about it.

regards.

By HgTX

Date 09-06-2005 16:52

Where's the welding access hole? If it's the hole in the web that will be used for field-splicing the girder, then typically the welds are run out to the end of the plate and then ground flush along with the edge of the hole, like D1.1 shows for "rolled shape or groove welded shape" (NOT like what D1.1 shows for "fillet welded shape"). If it's a corner clip in a diaphragm, then typically the welds terminate 1/4" before the end of the plate.

What Fig. 2.8.1.7 refers to is if you have a weld at the end of something like a cover plate or a connection to a gusset plate, then that end weld needs to be carred around the corners so its terminating bits are parallel to direction of stress.

Hg

By sxu Date 04-15-2019 21:07

Hi,
Where could I locate the information for welds termination in a diaphragm? what is the reason for this weld termination? Thank you.

By HgTX

Date 04-15-2019 21:12

Should be on the contract drawings, or sometimes a general statement in the standard specifications.

The idea is to avoid undercut from welding too close to the edge.