aci 318 chapter 20

huangyhg

aci 318 chapter 20
i've got another post going on鈥?
well, i'll post my experience here - but others out there - do add any insights above and beyond this:
i did a load test once on a small grandstand - made of load bearing cmu with double tees forming each riser.  no one had a clue where the dt's came from and what load capacity they truly had.
i had a number of barrels set up in a specified spacing to load the grandstand to 125% of the required live loading for grandstands (100 psf i think it was).  the loading was performed by adding water to the barrels - calculating the volume in each barrel, the resulting weight, and the barrel spacing to mimic 100 psf.
i took vertical elevation measurements of the dt's prior to loading, at 1/4 loading, 1/2, 3/4 and full loading.  then removed the load, took measurements, and then took them again i think at 24 hours later.  (i don't have aci with me right now but this is what i recall).
aci provided design criteria for the deflection and deflection-rebound.