How to calculate story drift?
How to calculate story drift?
(OP)
I have designed a (home) two story box 30'x 45' with 9' first floor ht. and second floor ht. of 8'. I have calculated and designed the home for siesmic loads using site built shear walls. The plan checker is asking for the shear walls meet the story drift limitation of section 1630.10 of the California Building Code. Any help?





RE: How to calculate story drift?
RE: How to calculate story drift?
RE: How to calculate story drift?
(Δi - Δi-1)/hi
This is commonly expressed as a fraction of the span (h), such as 1/400*span, or as the drift angle,
arctan((Δi - Δi-1)/hi)
As the name implies, shear deformation is significant for shear walls and needs to be considered.