Civil Engineering Reference
In-Depth Information
Force
Force from design earthquake
(Elastic response)
V e
Base shear V = V e /(R/I)
Deformation
V = Design lateral force
δ xe = Lateral deflection from elastic
analysis
δ xe = Lateral deflection considering the
inelastic response
C d = Deflection amplification factor
ASCE 12.2-1
I = Importance factor ASCE 11.5.1
R = Response modification coefficient
ASCE 12.2-1
δ xe
δ x = C d
δ xe /I
Figure 11-3 Code Design Seismic Forces Compared to DBE Effect
 
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