Can anyone provide a reference that shows the allowable horizontal floor diaphragm capacity of 1/2" or 5/8" Gypsum Wallboard (GWB) as a floor diaphragm on light-gauge cold-formed metal joists?
We found the IBC table which lists GWB diaphragm on wood joists (70plf).
We also found the AISI tables...
Does anyone have experience using galvanized TC bolts outside? A basic property of TC bolts is the ends are sheared off during install. This leaves a surface without galvanizing, which starts corroding immediately. Is this something I should be concerned with? Why even make galvanized TC bolts...
We spec masonry dobies or plastic chairs in concrete footing pours cast against earth.
The contractor used regular steel chairs instead. We flagged it because we are concerned metal chairs will corrode and deteriorate the ftg. We asked them to correct it but it didn't happen. The client...
I am a structural engineer. I need to better understand when we can use wood framing and when we must use light gauge or other noncombustible materials. I am looking for a cliff's-notes-style primer on this part of the building code. Do you know of any good resources?
In a concrete roof slab, can concrete reinforcing cover be reduced from 1-1/2" to 3/4" if a roofing membrane is present? ACI vaguely alludes to this but I haven't found a straight answer anywhere.
As structural engineers, we were retained to design an addition to a building. Partway through the design process, we realized that many aspects of the recently-constructed building did not satisfy basic structural building code. Namely, the building has zero lateral (wind or seismic) force...
We are structural engineers hired by the contractor working on a multifamily residential structure. It has come to my attention that the contractor intends to construct our design without filing for building permits.
We have put it in writing that we believe he must file for permit. There is no...
Imagine a partition wall below a long-span truss with expected deflections of 1/2" up or down. Often us Structural Engineers will specify deflection clips or similar methods to allow for this truss' deflection.
Now imagine a single-family home 2 stories plus basement. Roof rafters' expected...
As a structural engineering firm, in response to very specific scope RFP, we were hired to provide sizing of masonry lintels and wood joist sizes--nothing else.
We are not stamping any plans or calculations. Our sizes were communicated to the architect via email, to be incorporated into their...
