Review of the Soft First Story Irregularity Condition of Buildings for Seismic Design
2010 ◽
Vol 4
(1)
◽
pp. 1-15
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Keyword(s):
The present study evaluates how the soft first story irregularity condition should be defined: (a) as a significant reduction of the lateral shear stiffness of all resisting frames within a given story, as established in the seismic provisions of Mexican building codes or, (b) as a substantial reduction of the lateral shear stiffness of one or more resisting frames within a given story, as proposed by the author. Both definitions are evaluated through nonlinear dynamic analyses of buildings systems with a suspected soft first story condition in order to discern which option is closer to define the soft fist story condition.
Keyword(s):
2010 ◽
Vol 133-134
◽
pp. 715-720
◽
2014 ◽
Vol 47
(2)
◽
pp. 157-170
◽
2015 ◽
Vol 2
(1)
◽
1975 ◽
Vol 227
(0)
◽
pp. 47-55,131