The Breakroom > The Water Cooler
Building a Bridge
naffsharpe (Nathan):
Keep them coming Steve ! If you do fall in please post a selfie!!
kayzed1:
More pics please Steve, i love this stuff.
Lyn.
vtsteam:
Peter Nathan Lyn thanks, and here you are then:
Curbs and runners added -- ready for end blocks and backfill.
vtsteam:
The south end will need a LOT of fill -- estimated at 8 truck loads.
Nathan, if I fall I promise a selfie for sure, or an assisted one! :lol:
Actually, a more realistic concern is for Dave the excavator operator who plans to put his machine in the middle of the bridge and backfill from there. He says he will have the trucks empty on the north side, and rotate it over to the south side. I think his excavator is close to 35,000 lb, or so. I'm not real keen on this operation, but he's confident about it. The bridge deck itself weighs in the neighborhood of 6,000 lbs. so 40,000 lb load.
Technically a midspan point load of 80,000 lbs should come in under 66% of yield for four A992 W12x26 beams, but that's back of the envelope, and this operation does have me feeling concerned. He will be taking it slow, and I'll be watching for bridge deflection. It shouldn't be anything more than a quarter inch with that load, so if I see practically anything, I'm waving him back.
vintageandclassicrepairs:
Hi Steve,
That method will "settle" the structure for sure
It looks great to me
Dave sounds to be a "Mad Digger" rather than a Mad Modder :lol: :lol:
John
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