typical values for vertical load for each storey
typical values for vertical load for each storey
(OP)
Hello my question is simple as the title state it , for obvious reasons related to modeling off buildings for geotechnical engineering , i am looking for typical values per storey be it for RC or Steel structures
thanks
thanks





RE: typical values for vertical load for each storey
Also exterior walls/skin can vary greatly....think glass box vs. block and brick veneer.
Ranges are pretty wide -
Dead Load - perhaps 15 psf to 85 psf for floors
Live Load - 40 psf to 250 psf (code values for different occupancies)
Snow Load - 0 to perhaps 100 psf (usually in the range of 20psf to 40 psf in most parts of the USA)
Seismic/Wind Loads - can have very wide variations for footings depending on the lateral resisting system.
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RE: typical values for vertical load for each storey
Dave
Thaidavid
RE: typical values for vertical load for each storey
That’s the kind of question that kinda puts the cart before the horse. As mentioned above, for a given building, materials used for construction, etc. we can tell you what the approx. DL’s per sq.ft. will be and we can tell you what the various LL’s, and snow, and lateral loads will be in a given location. But then, as Structural Engineers, we need you to come into the picture to tell us what the foundation loads can be, with due consideration for max. bearing capacity, long term settlement, soil/found. EQ considerations, etc., because these inputs from you will help us set our max. column spacing, load bearing spacings as we look at our framing system, and thus, the magical loads you are asking for. It takes us Structural and GeoTech guys working together, in unison, to make the final determination. If you want this magic number for your own use, you would be better off taking the last thousand buildings you have done the GeoTech work on, and categorizing them by story height, building type, material of construction, etc., and using that as some guidance for your needs.
RE: typical values for vertical load for each storey
So i get that the 1 ton / m² / storey is not true !
I must also ask about the effect of long term settelement on the design of the structure, does it effect the design of beams and columns ?
RE: typical values for vertical load for each storey
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RE: typical values for vertical load for each storey
Dave
Thaidavid
RE: typical values for vertical load for each storey
RE: typical values for vertical load for each storey
so lets say i have 100 m² the surface area of the building , so it will be something like 100 tons / storey right ?
@thaidavid40 who will ever guess the load per unit area of any building around you knowing that they were not made with any studies ?
RE: typical values for vertical load for each storey
As an absolute minimum, I would use more in the range of 60 to 80 psf, depending on the useage. The lower figure of 60 yields 360 tons per story.
Mind you, that figure is just conjecture and as JAE stated, will vary enormously...
If you are looking for just the weight of the building, use 25 to 30 psf - floors, roof and walls. That guestimate will get you closer.
Mike McCann, PE, SE (WA)
RE: typical values for vertical load for each storey