Expansion joint vs building drift at top
Expansion joint vs building drift at top
(OP)
Hi Guys,
Need clarification, when we have two buildings separated by expansion joint of 2"(normally). How does we can strict these buildings for 1" max. deflection. It is difficult with moment frames. For steel building with bracing it is ok but with moment frame, building deflection cannot be limited which maximum is for my case look like 1" only. Can we assume more deflection at top or we can just check for drift.
Appreciate for comment.
Need clarification, when we have two buildings separated by expansion joint of 2"(normally). How does we can strict these buildings for 1" max. deflection. It is difficult with moment frames. For steel building with bracing it is ok but with moment frame, building deflection cannot be limited which maximum is for my case look like 1" only. Can we assume more deflection at top or we can just check for drift.
Appreciate for comment.






RE: Expansion joint vs building drift at top
Mike McCann
McCann Engineering
RE: Expansion joint vs building drift at top
RE: Expansion joint vs building drift at top
In dealing with existing structures, assumption is that the existing separation has been correctly calculated per the prevaling code at the time the buildings were designed. You may still verify, time and money permitting.
I don't know how many stories your buildings are, nor the specific situation that warranted yor question but 2" separation for two moment frame buildings does not look correct.
RE: Expansion joint vs building drift at top
RE: Expansion joint vs building drift at top