mini pile tension load test with strain gages

[EngMan40]

I want to instrument a mini pile with several strain gages spaced at 1 to 2 m apart along the socket for tension load test. should I weld those gages to the threadbar (if weldable) or just tie them to the rebar and grout the pile? any photos showing this done before are appreciated.

 

[MTNClimber]

I’ve always seen them zip tied to the bar and grouted.

 

[KShab]

There are different ways you can go about it, but the easiest would be to tie them onto the pile.

 

[JGFigue]

The only time I did that, was using TIG welding.

 

[DanielSgeo]

If you use foil gauges you can epoxy or super glue them on to the rebar/threadbar