Bidge sway set off Cambodian stampede
Bidge sway set off Cambodian stampede
(OP)
A swaying bridge loaded with thousands of people sparked mass panic and set off a raging stampede that killed more than 350 people in Cambodia's capital, ...
http://www.youtube.com/watch?v=HVy7JdMyn7Y
http://www.youtube.com/watch?v=HVy7JdMyn7Y






RE: Bidge sway set off Cambodian stampede
RE: Bidge sway set off Cambodian stampede
RE: Bidge sway set off Cambodian stampede
RE: Bidge sway set off Cambodian stampede
This sounds like the same thing: Human nature led to a tragedy. Normally, in a suspension bridge live load is insignificant compared to dead load. However, extreme pedestrian loads can give one the perception that something is wrong. When designing ped bridges AASHTO requires a check of vibrations; it's similar with building design. With a vehicular bridge, we have deflection limits.
As the police chief said, next year they need to do a better job of managing the crowds. Perhaps they need to have a dynamic analysis performed in order to establish what a reasonable pedestrian live load should be in terms of allowable vibration.
I couldn't find any information about the bridge. I imagine it was built in accordance with recognized codes and standards, perhaps French or British.
RE: Bidge sway set off Cambodian stampede
What's more important, as I see it, is to know this in advance and plan for it. Thus better crowd management is going to go a long way towards mitigating this issue.
With events such as this perhaps having staff monitor the numbers on the bridge is is line. This is similar to the oversight (or supposed oversight) provided for entertainment buildings that are watched for crowds with respect to the fire code, etc.
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RE: Bidge sway set off Cambodian stampede
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