tall buildings
tall buildings
(OP)
Are centre of rigidity and centre of shear rigidity are same?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: tall buildings
However, the center of mass and the center of rigidity are seldom the same.
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: tall buildings
RE: tall buildings
My point is that in low-rise construction your statement is more or less correct. In taller buildings, where the lateral
stiffness has a larger flexural component, that may not necessarily be true.
What the practical consequence or difference is I can't say I know
RE: tall buildings
the difference is in the behavior of the lateral elements. I don't k ow anyone who distributes lateral loads by hand so small differences are probably a moot point, but I would offer this - when the aspect ratio of a shearwall is below some threshold the relative stiffnesses are based only on area (because of the predominant shear deformations). As the aspect ratio grows, so does the percentage of flexural displacement. Now the relative stiffnesses are based solely on area.
This has nothing to do with distribution of lateral
forces other than to change the way we derive relative stiffnesses.