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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