I'm looking to extend/splice onto the top of an existing steel column to extend it through the roof level to support an HVAC equipment skid. The existing W10x49 column has girders framing into both flanges at top of column and girders framing into each side of the web at 2-1/2" below the top to...
I'm trying to determine the safe load capacity for a concrete groin vault roof structure. The structure is a buried 1,000,000 gallon water vault from the early 1900s. The vault is constructed of concrete and has a groin vault roof/ceiling supported by columns at a nominal 13' o.c. I am trying...
I am designing a replacement monorail at a papermill, the rail will support a trolley on the bottom flange and will be a multi-span beam. I have the rail sized at S24x90 for a 15T capacity. My question is, should the rail be bolted directly to the bottom flange of the roof beams which are at...
I am working on analyzing an existing steel hoist beam (W14x74) that is being re-purposed for a different hoisting configuration. The client is looking to install a pair of adjustable locking-jaw clamps (see attached file, BC-1 clamps) onto the bottom flange of the beam for hoisting 45,000...
We have designed a repair for deteriorated steel columns, similar to the one shown in the attached photo. Typical repair is to shore the structure, remove concrete around base of column, cut off deteriorated section of column, weld baseplate to bottom, embed reinforcing steel into existing...
Hi folks,
I am trying to design a connection for an equipment support frame to be located above an existing roof. The frame is designed to penetrate the roof at the existing column locations. Existing roof framing is bar joists bearing on continuous W16x31 that span across the tops of the...
A local contractor has contacted us to review the proposed foundation design for some high mast sports light poles. The concrete poles are 95' tall and will be embedded 15' into the ground as per the manufacturer. The poles were to be set in a 4' diameter hole and filled with concrete. The...
