ICF Waffle Grid Wall Design
ICF Waffle Grid Wall Design
(OP)
What are most people using for the design of ICF Walls when they fall outside the Prescriptive limitations of the IRC and HUD guidelines?
I have run into my first project that is outside the prescriptive requirements for ICF design given by the IRC and HUD.
I have run into my first project that is outside the prescriptive requirements for ICF design given by the IRC and HUD.





RE: ICF Waffle Grid Wall Design
Mike McCann
MMC Engineering
RE: ICF Waffle Grid Wall Design
I thought that PCA had some Structural procedures for ICF walls, but I couldn't find the book. I would think there would be some design guidance other than the prescriptive stuff somewhere.
RE: ICF Waffle Grid Wall Design
CFA: 2010 CFA Standard
CFA Technical Note 008-2010
ACI 332 & 318
PCA:
PCA-100 "Prescriptive Design of Exterior Concrete Walls for One- and Two-Family Dwellings"
RD134 "Concrete Consolidation and the Potential for Voids in ICF Walls" (every mfg and dealer/distributor fails to recognize what slump means and why!)
"Insulating Concrete Forms", Pieter A. VanderWerf, et.al., Published by PCA, McGraw Hill, 1997
USDHUD:
"Prescriptive Method for Insulating Concrete Forms in Residential Construction"
"In-Plane Shear Resistance of Insulating Concrete Form Walls"
"Lintel Testing for Reduced Shear Reinforcement in Insulating Concrete Form Systems"
"Testing and Design of Lintels Using Insulating Concrete Forms"
PATH: PRESCRIPTIVE METHOD FOR INSULATING CONCRETE FORMS IN RESIDENTIAL CONSTRUCTION
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MAP
RE: ICF Waffle Grid Wall Design
RE: ICF Waffle Grid Wall Design
"Structural Design of Insulating Concrete Form Walls in Residential Construction", Prepared by NAHB Research Center, Inc. 1998, published by PCA: PCA R&D Serial #2164.
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MAP
RE: ICF Waffle Grid Wall Design
RE: ICF Waffle Grid Wall Design
Of course, the structural analysis applies to he concrete portion of the walls and not the finished in-place wall exterior dimension since the EPS is is just a non-structural form. Usually, the structural portion of the wall is 2" or more less than the exposed thickness.
Dick
Engineer and international traveler interested in construction techniques, problems and proper design.
RE: ICF Waffle Grid Wall Design