A theoretical question, not a code-based question, because I think my brain's on vacation today:
How can it be deemed desirable to have a plastic hinge form at the base of a shear wall? Doesn't a hinge at the fixed end of a cantilever imply instability since there's nowhere else for forces to redistribute?
Understanding that's the only place you can force a plastic hinge in such a system (aside from coupling beams in perforated walls), but doesn't that imply it would want to be designed with really low R and to remain elastic (theoretically - understanding codes don't allow that, which is kinda the overarching point of the question)?
How can it be deemed desirable to have a plastic hinge form at the base of a shear wall? Doesn't a hinge at the fixed end of a cantilever imply instability since there's nowhere else for forces to redistribute?
Understanding that's the only place you can force a plastic hinge in such a system (aside from coupling beams in perforated walls), but doesn't that imply it would want to be designed with really low R and to remain elastic (theoretically - understanding codes don't allow that, which is kinda the overarching point of the question)?
