a 3 storey wedding hall collapsed in Brazil in 2002 during wedding dancing time...although it has reinforeced floor...?
2006-10-11 05:59:33 · 5 answers · asked by Steven A 1 in Science & Mathematics ➔ Engineering
Most likely it was sympathetic vibration. The rhythm of the dancing corresponded to the natural frequency of the structure and a standing wave could have developed around a resonant frequency. The amplitude of this wave exceeded the allowed displacement of a critical member resulting in a catastrophic failure.
However, it could have simply been poor engineering, construction, or inspection.
2006-10-11 06:14:07 · answer #1 · answered by Anonymous · 0⤊ 0⤋
i'm not civil engineer... but i'm studying engineer and i am brazilian... i remember this fact and i remember one specialist on structures saying that vibrations caused by people dancing on the floor caused the hall collapse... it's real bad luck cause it is difficult to tap the floor on the right frequency to do that... other fact that occurred was on WW2 where soldiers was marching on a bridge(a reinforced one) but the ritmic marching made the bridge collapse
2006-10-12 06:59:10 · answer #2 · answered by Jean C 3 · 0⤊ 0⤋
The floor collapsed because the load on the structure exceeded the design limits.
2006-10-11 16:49:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I don't know the particular situation, but it could be due to a variety of issues. Among them is design snafu, overcrowding, material(s) not to specs, construction not to specs, or even if all the above were o.k., if the all the people started hopping in rhythm, that would not be a design consideration.
2006-10-11 13:10:59 · answer #4 · answered by daedgewood 4 · 0⤊ 0⤋
Because it was built by Brazilians.
2006-10-11 18:07:14 · answer #5 · answered by Jeffrey S 6 · 0⤊ 1⤋