Hello everyone,
We currently have a problem with an access to a property which will require a ramp inside the property to compensate for the level difference. We are trying to design the ramp (in the property) such that a truck has no problems. At the beginning we thought a ramp with a 7.5%...
Hello,
There is a small fairly typical pre-engineered metal building which is going to be partly retrofitted for commercial use. The retrofit consists of placing a mezzanine inside of the building, and closing the envelope of this mezzanine laterally with insulated panels. The question comes...
There is a 2 hectare piece of land which remains undeveloped but soon (between 3 and 6 years from now) the owner will start developing it (warehousing).
This piece of land is essentially uneven dry grasslands, and each year the owner clears the organic topsoil as a fire management precaution...
I have a small size metal building with a metal roof full of leaks. The roof is a 25yo metal roof with some air wind extractors here and there. The roof needs repair, but I wish it to be a cost effective and not so durable solution, as in 4-5 years the building may be demolished. What solutions...
Can I achieve a slab on grade without control joints by placing sufficient steel mesh reinforcing?
I know there are solutions with SFRC + mesh without control joints. I also know documents claiming 0.5% steel mesh works without control joints.
Has anyone placed successfully concrete + steel...
Hello guys,
A detailing question; What is your preferred way of detailing the eave (intersection of the cladding and the roof) in a regular metal building considering rainwater behaviour?. I attach some examples of what i'm talking about.
I have seen many details and I haven't given it much...
Hello everyone,
All the cold storage building projects I have seen (-20°C) have either some sort of ventilated slab or some floor heating system to prevent frost heaving. This has been done this way for at least 20 years around here, in cold storage buildings. To me this seems as a very...
Hi everyone,
What's your preferred way of sealing a concrete slab on grade subject to occasional oil spills (truck vendor)?
Most of the time polished concrete + hardener works for me as it gives a smooth finish, but so far oils spills have not been a concern (they clean them with an oil stain...
Hello everybody,
What's a good reference on cold storage/freezer buildings?
Particularly regarding the detailing of thermal bridges and general technology available for energy efficiency.
Kind regards.
Hello everyone,
I typically design floor decks with studs in all beams and considering composite action for both the perpendicular and parallel to the deck beams, at least for the purpose of deflection checks.
Nonetheless I have seen people who consider composite action only on the secondary...
Hello everyone,
Is there any particular guidance documents, codes, or any writing, regarding the use of second hand steel members (beams, columns, purlins, etc.)?
I'm referring to typical steel sheds or buildings that have been disassembled and now they need a new use.
I would assume...
Hello everyone
I'm trying to recopilate information useful for design relating cold-formed built up closed section, for example the attached or similar types.
I'm looking for resources similar or maybe a bit more practical than AISI guides, yet a bit more complete than design tables from...
Hello everyone,
I'm on a project where the interior pavements are 6 inch slabs with a 8 inch base layer, and the exterior pavement is 3 inch asphalt with an 8 base layer and no subbase. Subgrade is pretty good (CBR >20%). The project is private and the biggest load will be occasional service...
Hello everyone,
A client wants me to assess an existing structure which is lightly corroded (see attachment). This structure is supporting condensers for a cold storage warehouse building. The structure was built on 2002 and I need to evaluate if it needs an overhaul since one of the old...
Hi everyone,
I was checking out the book "Architectural Detailing: Function - Constructibility - Aesthetics" by Edward Allen and Patrick Rand, and the following detail related to rustication strips on exposed concrete with discontinuous horizontal wall reinforcement (attached, no copyright...
Hi guys,
An architect is doing remodeling for a house on a hill (high seismicity region on sloped soil) and wants to place a cantilever pool (see attachment). Width is ~3.5 m, depth ~2.0 m, length pending.
Considering the house and terrace are already there, meaning this pool would not be...
Hello guys,
I'm in a situation where, for a splice length, we can't use the full development length of the rebar.
Does the following attached detail work in such situation?
IMHO, conceptually it works great, but I don't see it covered in ACI 318 so maybe I'm missing something.
What are...
Hi all,
I'm currently on the problem of footings for tanks, and I would appreciate some opinion on the following. I have a 3.5 m diameter 13 m height steel tank for plastic chips (80ton capacity) which is subjected preliminary to a lateral force of 35 ton.
A ring footing appears to be the...
Hi all,
I'm currently learning connections and I would like to debate how does one design the bracing connections in terms of centering to the beams and columns;
Initially I would thought that centering the gusset plate would be better for symmetry of the anchor bolts or beam bolts (see...
Hi all,
I'm currently learning connections, and I came up with the concept of Whitmore section. If I understand correctly, the whitmore section is a device to distribute the stresses in the gusset plate such as to form a "column" and design it as that. Particularly, one assumes the load path...
