To weld an overlap of steel reinforcements in stead of using stirrups
To weld an overlap of steel reinforcements in stead of using stirrups
(OP)
Currently I'm supervising a culverts structures of various diameter(pipe and box culverts)The Contractor would like to weld the overlaps of the steel reinforcement instead of using stirrups to bind the overlaps.He has proposed to used an overlap of 10cm and use spot or full weld to joint the overlap.Type of reinforcement he is using is high yield steel bars.If I allow him to weld the overlaps,does it have an effect to the whole structure???





RE: To weld an overlap of steel reinforcements in stead of using stirrups
Your contractor wants to weld rebar splices instead of using lap splices. If your code allows it and he uses a qualified welding procedure then, yes, it can be done without detriment to the structure. It is not likely that your code will allow tack welding. It will likely require a particular length of quality weld in a particular profile.
Check your code requirements first.
RE: To weld an overlap of steel reinforcements in stead of using stirrups
RE: To weld an overlap of steel reinforcements in stead of using stirrups
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: To weld an overlap of steel reinforcements in stead of using stirrups
RE: To weld an overlap of steel reinforcements in stead of using stirrups
RE: To weld an overlap of steel reinforcements in stead of using stirrups
Not to be uncharitable, but it sounds like you have very limited experience with reinforcement. The tie wire has no effect on development of the bars, it just keeps them in place. To evaluate welding rather than lap splicing for development, you need a greater depth of knowledge about welding and reinforcing steel.
RE: To weld an overlap of steel reinforcements in stead of using stirrups
By the way, the contractor is not a structural engineer.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: To weld an overlap of steel reinforcements in stead of using stirrups
RE: To weld an overlap of steel reinforcements in stead of using stirrups
Note that for the thing be aceptable the rebar must be of the weldable category, and not all are.
sd usually is added to specs most weldable, anyway.