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Help I need to make a connection to a fully grouted CMU wall (8"t). I have a load of 5000# to support and am trying to use the Hilti Profis software to design the anchors. I am hoping to fasten a L8x4x3/8 x 8" seat to the CMU with(4) 3/4" exp. or adhesive anchors placed on a 5.5" sq. pattern...

I've been asked to size I-joists for an interior wood framed mezzanine. The mezzanine is about 32' x 75ft, with 2-interior bearing walls, and joists are spanning the 25ft direction. Design live load is 75psf. The top of the plywood mezzanine deck is 11 ft aff. The client is planning on...

I have a large pre-eng building foundation to design, and the "provided" column uplift forces are quite high...95 kips. I am planning to drop the top of the footings and add piers to obtain the needed additional dead load from overburden. That is a lot of expense, and I'm sure the contractor...

I am analyzing roof framing for snow load capacity on a building constructed in the early 1970s. Roof is constructed with bar joists at 5'oc, spanning to steel beams. The original design drawings indicate a built-up roof on 1" rigid insulation, over a 3" cementituous deck. Does anyone have any...

Hi Does anyone know what type of metal deck that is in the attached photo. The flutes are 6"oc and 2" deep, the slab is 5.5" thick and spans 8ft. Slab has #4s @ 6" at mid-depth. I found a similar deck on-line manufactured in the UK, and it is a composite deck, and shows headed studs welded...

Hi I'm designing a 4-story wood framed building using RISA software. For the shear walls, the program offers various tension straps to transfer chord forces where required. I'm curious how a tension strap would get installed on an interior shear wall since the plywood floor deck would conflict...

I have a 2-story wood framed building (Condo)with 30' roof trusses and floor joists spanning 15'. Can the roof trusses be spaced at 24"oc and the floor joists and 2x6 wall studs spaced @ 16" By the numbers, with 42psf roof snow load, I need 3-2x6 top plates (SPF #2), but most contractors...

I have an condo project to design with a roof snow load of 42psf. Owner wants to frame the 30ft. roof trusses at 24"oc, floor framing and wall studs (2x6) at 16"oc. By the "numbers" I can get a triple top plate to carry the truss located between the studs. On single family residential...

I have a steel stair fabricator who would like to use a single 3/4" A-325SC bolt to connect a landing support beam (C4)to a header. The single bolt connection is adequate for the 1500# reaction, but do you have to use the AISC 2-bolt minimum requirement for a stair. Does anyone know of the...

any opinions out there on acceptability of using load values for double angle clips per AISC when the member being supported is a HSS 12x4, with 3/4" A-325N bolts..... ? thanks

Does anyone know of any issues of framing a 3-4 story wood framed building with 2x studs and floor framing @ 24"oc, versus 16", if the analysis of the wall studs checks out for all loads, including lateral Thanks

Looking for some feedback on what to use for deflection limitations for roof framing subject to just snow and dead loads in areas with high snow loads, ie Pg = 60psf + My question is specifically for the design of a LVL ridge beam on a low slope 5/12 roof, and the roof dead load is fairly low...

I have a client who is using a ICF foundation wall system for a house, with conventional wood framing above. The form is 13" wide, with a 8" core for concrete, so side walls of the form are 2.5" thick. This arrangement will have the 2x6 sill plate of the 2-level house only bearing on 3" of...

I am designing a small (30'x40') storage shed for construction vehicles, completely open on 1-side. Do I have to use a thermal factor of 1.2 for snow load for an unheated roof with a occupancy category 1, I = 0.8. This is used strictly for parking equipment, no service work / etc.

I'm analyzing a reinforced concrete building located in the northeast, built in 1974. I have the original design drawings, which are very complete relative to rebar size, spacing and dimensions, but no information on f'c or fy. I am comfortable assuming f'c = 2500psi, but not so on the yield...