DISPLACEMENT-BASED SEISMIC DESIGN
DISPLACEMENT-BASED SEISMIC DESIGN
DISPLACEMENT-BASED SEISMIC DESIGN
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Recommended Spectral correction for Damping<br />
Relative Displacement ∆ T,ξ<br />
/∆ 4,5%<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
(Eq.(2.8))<br />
ξ= 0.05<br />
ξ= 0.10<br />
ξ= 0.15<br />
ξ= 0.20<br />
ξ= 0.30<br />
Relative Displacement ∆ T,ξ<br />
/∆ 4,5%<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
(Eq.(2.11))<br />
ξ= 0.05<br />
ξ= 0.10<br />
ξ= 0.15<br />
ξ= 0.20<br />
ξ= 0.30<br />
0 1 2 3 4 5<br />
Period T (seconds)<br />
(a) "Normal" Conditions<br />
0 1 2 3 4 5<br />
Period T (seconds)<br />
(b) Velocity Pulse Conditions<br />
K e =4π 2 m e /T e<br />
2<br />
; V base =K e ∆ d<br />
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