In this condition, the slot direction are perpendicular to the load and thermal expansion is not a concern as it is in a heated garage. So the bolts are purely in a bearing condition.
I have a project with wide flange girders, wide flange joists at ~8' oc supporting a 5" deck with slab. For the joist to girder connections I have a standard double angle bolted connection. The fabricator used short slotted holes in all of the angles. He used washers on the nut side of the bolts...
I have been getting request from both acoustic engineers, architects and developers to allow a break in the diaphragm between party walls on multi-family wood framed buildings. These are typically around 20k sq ft and simple wood framed buildings with interior and exterior shear walls and...
I have a Timber space truss that is using a combination of steel pipes and rods as the compression and tension members. The contractor wants to use turnbuckles on the rods for erection purposes to be able to rack and plumb the truss, but the architect doesn't like the look of turnbuckles. One...
I would like to spec a stainless steel column in an industrial wastewater tank. The column would be partially submerged 99% of the time. The water is extremely basic w/ a ph around 10 and has a CaOH content of 700ppm. I am attaching the latest lab report for mineral content in the water. The...
I am trying to figure out the best way to determine the stress (bending and shear) in a rectangular beam (not a steel I beam but a wood timber) with a horizontal hole through it. This is the very common situation of plumbing and electrical contractors needing to run lines through a floor system...
Anyone thought of using an exposed collar tie instead of a ridge?? The connection of the collar tie to the rafters will take care of your thrust force.
my concern with hot dip galvanizing is that when backfill is compacted on top of the beams the galvanizing would be damaged. I am currently thinking of two options:
1. encasing the beams in concrete
2. Using a combination of active cathodic protection as well as a spray on bituminous coating...
I am looking for a good solution to protecting W shapes below grade. They will be supporting a concrete pan deck cantilevered over a cliff as the foundation for a house (NOT the best idea I know!) Most will start about 8' below grade (attached to rock anchors) then eventually be out exposed to...
I'm wondering if anyone has designed anything near Brazos, NM. IBC snow load map shows it is a case study area, but I can't get anyone at the county or the state to give me any information. Any thoughts??
