A picnic table umbrella went airborne and almost hit someone at our Farmers' Market. I was about 25 miles from the site of this collapse on Saturday morning, and I can tell you it was QUITE windy at the time of the collapse. I hope I am not repeating topics that have been settled one way or another. I apologize in advance because I am commenting before reading all the replies in this thread. RE: Hard Rock Hotel under construction in New Orleans collapses. You never can tell by pictures and videos, much more need to be reviewed. If the design is concluded to be done properly a probable cause is the localized failure of floor bay had a domino effect on the others above and below and that one or two bays caused it all. The structure seems to be very optimized with light sections at the typical floors that noway it could handled an additional weight on the horizontal or the vertical element (ideally it would not be required to) Lack of shoring is a factor in these systems where the deck is designed to be the form work.
This discontinuity could accelerate a progressive collapse. These cantilevers are having a shoring above which seems not loaded on the beams below this might be the case of it might be shifted during the collapseĪlso, it is noted that the steel columns in the upper typical floors are shifted from the columns below.
