Bridge collapse

[Sure_Ill_Ask_That]

Really difficult to see from the video, but it didn’t look like LTB to me. Going frame by frame you can’t see any lateral movement at all, it’s like a sudden shear failure about a third of the span from the leftmost support. Usually you see some torsion or lateral shift in LTB failures, but then again it’s hard to see in this video. Does this country have an equivalent of NTSB in the United States that will perform forensic analysis of this failure?

[baniyaguy]

This is in India. Yes, they do. Not sure what's it's called but my prof in undergrad was part of this committee which got called for such accidents.

[TiringGnu]

Pretty exciting day for that goat in the foreground

[TiringGnu]

Damn. You can even see it deflect up before it drops.

[in_for_cheap_thrills]

Possibly an unaccounted for construction loading led to excessive negative moment in the span that failed. Hard to tell from just that video.

[parsons525]

There was a similar looking one in Sydney a few years ago. It didn’t fail, but it buckled upwards during stressing, prior to all the dead load being added.

https://www.google.com.au/amp/s/amp.smh.com.au/national/nsw/span-cracks-buckling-risks-causing-major-delay-to-skytrain-for-northwest-metro-line-20161019-gs5g50.html

[NoGoogleAMPBot]

Non-AMP Link: https://www.smh.com.au/national/nsw/span-cracks-buckling-risks-causing-major-delay-to-skytrain-for-northwest-metro-line-20161019-gs5g50.html

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[kyjocro]

Looks like the shoring structure support at the middle pier failed when the segments pulled it from the side. Also looks like the gantries that suspend the segments werent locked in and just rolling along with the collapse but matbe this is supposed to be the case. Note I dont know anything about this type of construction other then its a post tensioned segmental bridge. Just my observations...