We have a job that specifies ASTM A572 grade 50 (Actually AASHTO M270 Grade 50). We need plate that is only 1/8" thick. It's for a shim underneath the sole plate on a steel bridge girder. We can't seem to find a supplier that provides 572 in that thickness. Is 1011 CS a suitable substitute or is...
"dhengr"
This is the lowest and lowest loaded pier. The temp support structure is going to be modular to address piers 75 feet high and loads much greater. There is very little space at the tops and the jacking structure cap and the bearings will have to be lifted in pieces and assembled at the...
The load from the pier spreads out through the footing thickness directly to the piles. Assumed 45 degree angle.
This temporary supporting structure stands on the section of the footing that is not really part of the load distribution of the pier, other than towards the bottom of the footing...
The pier caps have very limited room to hang any structure from them. The existing anchor bolts must be retained and the new bearings lifted and assembled in pieces to allow them to fit into the limited space. Seems like completely seperate jacking towers are necessary.
I have attached a pdf...
I am jacking a bridge to replace some bearings. I'm erecting temporary columns on each side of the pier column and placing jacks at the tops to lift the structure under full dead and live load.
At the bottom of the columns I am bearing on the old pier footing. My temporary columns are made up of...
