Agenzia Nazionale per le nuove tecnologie, l’energia e lo sviluppo
economico sostenibile
Monitoraggio delle strutture nella prevenzione del
rischio sismico
Isolatori sismici semi-passivi attivati da un segnale
di Early Warning
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Agenzia Nazionale per le nuove tecnologie, l’energia e lo sviluppo
economico sostenibile
system “Earlyprot” developed by ENEA
for
Earthquake protection For
Strategic Infrastructures and services
control centers, Floor isolation, cabinets,
Movable and semi movable Cultural Heritage Objects
high vulnerable statues Museum teches
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Early warning + isolators + airbags
1- non invasive devices based on the use of very low stiffness and low
dissipating antiseismic devices made by CERAMIC, MARBLE or STEEL,
blocked in normal conditions and activated by a Seismic Early Warning signal
Devices
made by
Ceramic or
Marble
2- Airbags !! In the cage and on the floor
activated by the Seismic Early Warning signal.
[email protected]
Steel
Semi-Passive devices Earlyprot for nuclear
cabinet
D (mm) = 200, 400, 500
R (mm) = 2000
N° Cables = 36, 32, 24, 20, 16,
8, 0
Experimental tests:
Weight (KN) = 17, 34
1) Pull-Release, 2) Shock,
3) Sine Sweep, 4) Sine,
5) Random,
6) Seismic
The dynamics of the device is controlled by the following dimensional parameters
Ceq  2   

  DR
m g
K
;
R
m
R
T  2 
 2 
K
g
Ke 
m g m g

D
R
x2
b(1  1  2 )
a
K W 
x2
Devices for Bronzes of Riaci
Material: Marble,
type: rolling slider,
Geometry: Ellypsoid (a=300mm, b=10mm)
g  x2
1
T
2
x2
b(1  1  2 )
a
100
0.3
y
F
K
80
60
0.25
40
Force (N)
20
0
-400
-300
-200
-100
0
100
200
300
0.15
400
-20
0.1
-40
-60
0.05
-80
-100
displacement (mm)
0
Stiffness (N/mm)
0.2
Test C4: D=400mm, W=17 KN, N=24, A0=200mm
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Test C4: D=400mm, W=17 KN, N=0, A0=200mm
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pull-release tests of the semi passive devices EARLYPROT
Semi Passive devices Earlyprot
Pull-Release test : 17 KN Mass, 4C_8 cables
400
200
0
1C_9Tref
-200
400
200
4C_8Tref
0
-200
2
4
6
8
10
12
14
16
2
4
6
200
8C_4Tref
0
-200
-400
6
8
10
time (sec)
12
14
16
18
displacement (mm)
displacement (mm)
400
4
10
12
14
16
18
0
2
4
6
400
200
9C_2Tref
0
-200
-400
0
2
4
6
8
10
time (sec)
8
10
12
14
16
18
time (sec)
Semi Passive devices Earlyprot: test 12C
Pull-Release test with 17 KN Mass, 0 cables
Semi Passive devices Earlyprot: test 9C
Pull-Release test with 17 KN Mass, 2 cables
Semi Passive devices Earlyprot: test 8C
Pull-Release test with 17 KN Mass, 4 cables
2
8
time (sec)
time (sec)
0
5C_6Tref
0
-400
0
18
12
14
16
18
displacement (mm)
0
200
-200
-400
-400
Semi Passive devices Earlyprot:
Pull-Release test :17 KN Mass, 5C_6cables
Displacement
(mm)
400
displacement (m)
displacement (mm)
Semi Passive devices Earlyprot
Pull-Release test : 17 KN Mass, 1C_9 cables
300
200
100
0
-100
-200
-300
12C_0Tref
(2∙μ∙N∙ω)/(π∙K)
0
2
4
6
8
10
12
14
16
18
time (sec)
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Hysteretic cycles measured during the sine tests at (0.5Hz, 0.2g), (0.4Hz, 0.3g) and
(0.5Hz, 0.3g), (0.4 Hz, 0.1g), (0.7 Hz, 0.25g)
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IEEE-344 HRRS
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X,Y Spectral Acceleration (g)
2.5
TRS_X(g)_DT=0.005
TRS_Y(g)_DT=0.005
IEEE 693_XY_2%
2
1.5
1
0.5
0
0.1
1
10
100
Frequency (Hz)
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Shaking Table experiment set-up
Unblock the
antiseismic
devices
Steel
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Shaking Table experiment set-up
Unblock the
antiseismic
devices
Steel
Marble
[email protected]
17-11-2010 ore 10:56:
test sismico per Bronzi di Riace
direzione Y_LAT
Dispositivi EARLYPROT in marmo per l’isolamento sismico dei Bronzi di Riace
Test preliminari su tavola vibrante del 17-11-2010
Ag_X = Accelerazione Tavola asse X
Adev_X = Accelerazione trasmessa alla base della statua asse X
0.60
Ag_x
Adev_x
accelerazione (g)
0.40
0.20
0.00
-0.20
-0.40
-0.60
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
tempo (sec)
[email protected]
17-11-2010 ore 10:56:
test sismico per Bronzi di Riace
direzione X_LON
Dispositivi EARLYPROT in marmo per l’isolamento sismico dei Bronzi di Riace
Test preliminari su tavola vibrante del 17-11-2010
Ag_Y = Accelerazione Tavola asse Y
Adev_Y = Accelerazione trasmessa alla base della statua asse Y
0.60
Ag_y
Adev_y
accelerazione (g)
0.40
0.20
0.00
-0.20
-0.40
-0.60
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
45.00
tempo (sec)
[email protected]
17-11-2010 ore 10:56:
test sismico per Bronzi di Riace
direzione Z _Vert.
Dispositivi EARLYPROT in marmo per l’isolamento sismico dei Bronzi di Riace
Test preliminari su tavola vibrante del 17-11-2010
Ag_Z = Accelerazione Tavola asse Z
Adev_Z = Accelerazione trasmessa alla base della statua asse Z
0.60
Ag_z
Adev_z
Accelerazione (g)
0.40
0.20
0.00
-0.20
-0.40
-0.60
0.00E+00
5.00E+00
1.00E+01
1.50E+01
2.00E+01
2.50E+01
3.00E+01
3.50E+01
4.00E+01
4.50E+01
tempo (sec)
[email protected]
Dispositivi EARLYPROT in marmo per
l’isolamento sismico dei Bronzi di Riace
Test preliminari su tavola vibrante del 17-11-2010
fattore di riduzione
25.00
20.00
15.00
10.00
5.00
0.00
Serie1
Coeff. Isolamento_X Coeff. Isolamento_Y
17.00
19.45
Asse
Coeff Isolamento_z
0.84
Fattibilità sistemi di
isolamento in marmo per i
Bronzi di Riace
ENEA Casaccia 17-11-2010
prova sismica di isolamento
alla base di una statua con
dispositivi in marmo
Earlyprot
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Full scale test of a building modulus
Ente Nazionale per le Nuove Tecnologie, l'Energia e l'Ambiente
3D-Vision for displacement data acquisitions
conceptual structure of the DySCo networking
configuration.
The remote user share data and images
during the experiment and communicate
with the local operator.
At this stage only the local operator is
allowed to drive the test.
Remote User
N° 1
Remote Controlled
Web-cam & 3D-
Remote User
N° 2
Remote User
N° ….
Vision
Local
Operation
Remote/
Local
Operation
AFS
Local Data
AFS Data Integration
> 4 TByte
Local GRID Cluster