Welding rebar
Welding rebar
(OP)
I have situation requiring welded rebar splices.
1. Is this a pre-qualifed weld?
2. If not pre-qual, what is required?
3. What type of splice would you recommend?
a. bars side by side
b. bars welded to a plate
c. butt splice
1. Is this a pre-qualifed weld?
2. If not pre-qual, what is required?
3. What type of splice would you recommend?
a. bars side by side
b. bars welded to a plate
c. butt splice





RE: Welding rebar
Dik
RE: Welding rebar
RE: Welding rebar
RE: Welding rebar
I recommend you only allow ASTM A706 rebar to be welded, not ASTM A615.
If you have to weld the rebar, I think a lap splice would be my first choice, however, that is highly dependent on the specifics of your situation.
I would first check into mechanical splices before looking at welding. There are many that are capable of developing 125% of the specified yield strength of the bar.
Good Luck.
RE: Welding rebar
1) The only weld pre qualified by his code is a fillet. This would only apply to T connections.
2)The WPS will need to be qualified by testing. The welder will also need to perform a certification test.
3)Splice is dependant on application.
RE: Welding rebar
The weldable rebar (A706) is already specified if welded splices are used.
AWS D1.4 is on the way.
Contractor is reconsidering the use of mech. splices because of the required testing and welder cert.