I see details for cold-form steel headers bearing on single, cold-form, stud columns. Does anyone have any input in reference to specifying a double, cold-form stud column for heavy loads? I am concerned about the load of the header crushing or crippling the leading web of the first stud. Is...
To design against overturning, I will fasten a wood stud wall to concrete foundation wall with 3/8 x 3 1/2" Rawl Spike at 32" oc.
What are your ideas for fastening steel stud walls to foundation?
Thank you!
In reference to shear walls and the orientation of gypsum board applied to cold-formed steel studs, I am instructed by the Wisconsin Enrolled Commercial Building Code to provide "strap blocking behind the horizontal joint". What is strap blocking? How is it applied or fastened? Who is a...
Specifically, I need to know whether A307 threaded rod is weld-compatible with A992/Grade 50 wide flanges.
For future reference, how can I determine what metals, fasteners, etc, are weld-compatible with each other?
Thank you!
When determining design pressures to be used for wind loads on buildings, do I use only the "p" design pressure imposed on the exterior surface of a structure, or do I apply the "GCpi" product of internal pressure coefficient, which is also expressed in psf and results in a near double pressure...
I often see 1.33 load duration for masonry. What type of duration would this apply to?
Can a 1.6 wind load duration also apply to steel and masonry as it does to wood?
Thank you!
I have a bearing plate design example that I follow. I often come up with plate thicknesses exceeding 1", as a result of both the load and the beam shape "k1" value.
If the flange width of the beam exceeds the maximum possible plate width, I see no reason to have the plate thickness exceed...
Can vertical rebar extend into the footing to serve also as dowels, thus, eliminating one step in the fabrication process? Why or why not?
Would this force too high of a load "into" the near bottom of the footing, as opposed to being distributed more onto the top of the footing?
Thank you!
Will somebody please check my math?
AISC/ASD 9th Edition, Equation (K1-5)
I have a W8x24, Fy=50 ksi, bearing 6" on a solid grouted, concrete masonry bond beam. I have approximately 4K of solid grouted concrete masonry bearing on top of the bearing end of the beam. The allowable compressive...
Designing an exterior cavity wall consisting of 12" concrete masonry unit, 2" rigid insulation and 4" concrete masonry veneer.
To resist 20 psf wind, should the wall be designed as 12" concrete masonry, 16" concrete masonry, or 18" concrete masonry due to a 2" cavity?
The question is this: Can...
When using hairpins and Welded Wire Mesh in the concrete slab, does the mesh have to be present throughout the entire length of the rigid frame, from hairpin to opposing hairpin, or can the mesh terminate beyond the length of the hairpin?
The contractor, to combat the rising steel price, would...
This post is an elaboration from thread507-89461.
Does anyone have information or comments referencing dissimilar metal contact? I am particularly interested in galvanized fasteners and anchors, used to fasten mild steel or carbon steel components, drag struts, collectors, etc. and passing...
I received a Technical Bulletin from Simpson Strong-Tie stating "Metal connectors, anchors, and fasteners will corrode and lose load carrying capacity when installed in corrosive environments or exposed to corrosive materials." One of the corrosive materials listed is Preservative Treated Wood...
Are there any design specification values for withdrawal for lag or wood screws in plywood or OSB?
Is there a specific gravity for plywood or OSB?
Any suggestions?
Thank you!
I was amazed when a "construction-related" individual was serious when asking, "If your floor framing plan specifies the allowable live load to be 100 psf, and I weigh over 200 pounds, if I should stand in a one square foot area, why do I not go through the floor?"
Since he...
Do wood roof or floor trusses at repetitive spacing, nailed to a continuous, single or double 2x bearing plate, bolted at a repetitive, staggered spacing to the top flange of the supporting wide flange steel beam, qualify as sufficient compression flange bracing of the steel beam?
I've been...
I have been referred, by a fellow forum member, to a wind analysis program called "SDG Wind Loads on Structures 2002". For a cost of approximately $500.00, this member refers to this as "An excellent program for wind analysis."
I have the demo for this program and I find...
