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Small ICF Pyramid with 6" reinforced columns, 16" o.c.

Small ICF Pyramid with 6" reinforced columns, 16" o.c.

Small ICF Pyramid with 6" reinforced columns, 16" o.c.

(OP)
Am new to this forum & usually design wood structures with the aid of spreadsheets or Enercalc. Am a Civil Structural in California & asked by one of my recurring clients to design for them a 2 story pyramid about 50 X 50 at its base, 35 feet from base to top of pyramid. No projections. Some windows.  Was thinking of using an ICF block that is about 48" long, 16" X 10" with 6" reinforced concrete cylinders surrounded by recycled EPS foam. The block is tongue & groove and stacks so you line up the 6" hollow cylinders. This block uses very little concrete, gives you very high R values, and weighs about 55 psf (face) with concrete/rebar at 150 pcf. Is there an inexpensive structural engineering software available that anyone can recommend to professionalize the presentation ? Any other suggestions especially regarding shear, torsion & shoring ?

RE: Small ICF Pyramid with 6" reinforced columns, 16" o.c.

Your sketch won't load up.

Mike McCann
MMC Engineering

RE: Small ICF Pyramid with 6" reinforced columns, 16" o.c.

If you use one of the most common ICF systems (available everywhere) that uses a flat panel system the analysis is much more prdictable and the system is more constructable. - Especially with openings.

There three different systems - flat panel, waffle and "post and beam".

What you really have with a flat panel system is a 6" reinforced concrete wall with 2 layers of foam forms left in place. The othere have a complex geometry that make it difficult to realistically analyze and construct/place concrete.

Dick

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