Download - Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake
![Page 1: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/1.jpg)
Numerical simulations of liquefaction
phenomena after Emilia Romagna
(20 May 2012) earthquake
D. Forcellini, S. Gobbi and G. Guerra
Università di San Marino
![Page 2: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/2.jpg)
OPENSEES PL
![Page 3: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/3.jpg)
INCOHERENT SOILS
![Page 4: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/4.jpg)
INCOHERENT SOILS
![Page 5: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/5.jpg)
COHESIVE SOILS
![Page 6: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/6.jpg)
CASE STUDY
![Page 7: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/7.jpg)
CASE STUDY
![Page 8: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/8.jpg)
CASE STUDY
![Page 9: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/9.jpg)
CASE STUDY
![Page 10: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/10.jpg)
![Page 11: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/11.jpg)
TRADITIONAL METHODS
![Page 12: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/12.jpg)
TRADITIONAL METHODS(Youd and Perkins 1978)
![Page 13: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/13.jpg)
CASE STUDY
![Page 14: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/14.jpg)
CLAY MATERIALS
![Page 15: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/15.jpg)
SAND MATERIALS
![Page 16: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/16.jpg)
INPUT MOTION
-0.17-0.16-0.15-0.14-0.13-0.12-0.11-0.10-0.09-0.08-0.07-0.06-0.05-0.04-0.03-0.02-0.010.000.010.020.030.040.050.060.070.080.090.100.110.120.130.140.150.16
0 2 4 6 8 10 12 14 16 18 20
Acc
ele
razi
on
e (g
)
t (s)
Accelerogramma L1
![Page 17: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/17.jpg)
FEM DEFINITION
![Page 18: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/18.jpg)
BOUNDARY CONDITIONS
![Page 19: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/19.jpg)
FINITE ELEMENTS
![Page 20: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/20.jpg)
CALIBRATION
(1558 nodes, 1224 elements) (1911 nodes, 1520 elements)(825 nodes, 616 elements)
![Page 21: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/21.jpg)
CALIBRATION
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0 2 4 6 8 10 12 14 16 18 20
EP
P (
kP
a)
t (s)
EPP (5.55 m)
Mesh 01 Mesh 03 Mesh 04
![Page 22: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/22.jpg)
CALIBRATION
0.00
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.04
0.05
0.05
0 2 4 6 8 10 12 14 16 18 20
Top
. D
isp
l. (
m)
t (s)
TOP DISPLACEMENT
Mesh 01 Mesh 03 Mesh 04
![Page 23: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/23.jpg)
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
0 5 10 15 20 25 30 35 40
EP
P (
kP
a)
t (s)
Excess Pore Pressure at 3.70 m
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
0 5 10 15 20 25 30 35 40
EP
P (
kP
a)
t (s)
Excess Pore Pressure at 5.55 m
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
80.00
90.00
100.00
0 5 10 15 20 25 30 35 40
EP
P (
kP
a)
t (s)
Excess Pore Pressure at 7.40 m
RESULTS
![Page 24: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/24.jpg)
0.00
0.01
0.02
0.03
0.04
0.05
0 5 10 15 20 25 30 35 40
Late
ral D
isp
lace
me
nt
(m)
t (s)
Top Lateral Displacement
0.00
0.01
0.02
0.03
0.04
0.05
0 5 10 15 20 25 30 35 40
Late
ral D
isp
lace
me
nt
(m)
t (s)
Lateral Displacement at 3.70 m
0.00
0.01
0.02
0.03
0.04
0.05
0 5 10 15 20 25 30 35 40
Late
ral D
isp
lace
me
nt
(m)
t (s)
Lateral Displacement at 5.55 m
0.00
0.01
0.02
0.03
0.04
0.05
0 5 10 15 20 25 30 35 40
Late
ral D
isp
lace
me
nt
(m)
t (s)
Lateral Displacement at 7.40 m
RESULTS
![Page 25: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/25.jpg)
RESULTS
![Page 26: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/26.jpg)
RESULTS
(scale 1:150)
![Page 27: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/27.jpg)
SSI STUDIES
(future research)
![Page 28: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/28.jpg)
CYCLIC TP
![Page 29: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/29.jpg)
![Page 30: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/30.jpg)
RESULTS
(scale 1:10)
![Page 31: Numerical Simulations of Liquefaction Phenomena after Emilia Romagna (20 May 2012) Earthquake](https://reader034.vdocuments.us/reader034/viewer/2022042607/558b42dfd8b42a5b668b479b/html5/thumbnails/31.jpg)
REFERENCE