671017.pdf

0

0 .2

0. 4

0. 6

0. 8

1

1 .2

Elastic method

Fan et al. ( 1991 )

Makris and Gazetas ( 1 992)

Ep/E

s= 1000

Ep/E

s= 10000

d/Vs

Up

(0)

/(

0)

Ue

(^00). 10 .2 0. 30. 40. 5
Figure 8: Normalized response of a fixed-head pile among simplified approach, BDWF [ 26 ], and rigorous results [ 18 ](퐿/푑 = 20,휌푠/휌푝= 0.7,
훽푠= 0.05,and휇푠= 0.4).
I-ELC 180
Time (s)
010203040 50
Time (s)
01020304050
Time (s)
010203040 50
0 .2
0. 4
KJM000
Acceleration (
g)
Acceleration (
g)
Acceleration (
g)
0
0. 5
1
A-TOR 180
0
0. 03
0. 06
− 0. 06
− 0. 03
− 1
− 0. 5
0
− 0. 4
− 0 .2
(a)
Artificial 3
A-TMZ27 0
Artificial2
Time (s)
010203040
0 .2
0. 4
Acceleration (
g)
0
− 0. 4
− 0 .2
Time (s)
010203040
0 .2
0. 4
Acceleration (
g)
0
− 0. 4
− 0 .2
Time (s)
0102 030 40
0 .2
0. 4
Acceleration (
g)
0
− 0. 4
− 0 .2
(b)
Figure 9: Acceleration time history of the input motions at the bedrock roof.
Table 2: Ground motions employed in the parametric analysis.
Earthquake Record label 푀푤 PGA (g) 푇푝(sec) 푇푚(sec)
Whittier Narrows 1987/10/01 A-TOR180 6.0 0.05 0.24 0.42
Kobe 1995/01/16 KJM000 6.9 0.82 0.34 0.64
Imperial Valley 1940/05/19 I-ELC180 7.0 0.31 0.46 0.53
ShangHai3-Elcentrol (IV Site) Artificial3 0.35 0.58 0.82
Friuli 1976/05/06 A-TMZ270 6.5 0.32 0.64 0.50
ShangHai2 (IV Site) Artificial2 0.35 0.72 0.75
푇푝:predominantperiodand푇푚: mean period.