price of a moment connection

[licobrino]

anyone could give me a ballpark of the price of a moment connection in lbs of steel or a comparison with a bolted connection in terms of price...just a ballpark is enough..thank you

 

[DaveVikingPE]

A moment connection can be a bolted connection. Are you really asking about the new-fangled seismic connections with their side plates and patented mechanics vs. good, old-fashioned moment connections? I would imagine that adding a couple of side plates to each connection of a multi-storey steel framed building would add some weight to the structure, but it wouldn't be competitive if the weight/cost added was substantially higher than bolted moment connections.

 

We've done some recent cost comparisons. Here's what one large fabricator gave us for a cost:

Shop prep for field weld: $120
Stiffen columns: $250
Field Weld: $250
Total Moment connection cost: $620