It today's segment have two good ole boy's from Georgia trying to drive there Ford F150 over the Norfolk Southern 6th Street Bridge going into South Carolina needless to say the score was Bridge 1 Truck 0.
Original Post
|
Replies sorted oldest to newest
quote:I wonder how fast they where going? And how old the bridge is? Must be very brittle steel, if that's what it is, (could it be cast iron?)
quote:If you pause the video at the right frame you can see that the diagonal snapped right where the lacing bars were riveted to the channel. The rivet hole removed most of the steel on both flanges. That made the diagonal very weak in bending and consequently they snapped upon impact by the truck. This type of loading obviously was not considered when the truss was designed.
Access to this requires an OGR Forum Supporting Membership