Presentazione

RELUIS: REte dei Laboratori Universitari di Ingegneria Sismica LABORATORIO
DAPS ­ Dipartimento di Analisi e Progettazione Strutturale AMRA ­ Centro di Competenza Analisi e Monitoraggio dei Rischi Ambientali Laboratorio PROVE STRUTTURE
PROVE STRUTTURE ü Steel floor 4000 mm long and 1000 mm wide ü Four columns for reaction plate restraint ü Maximum net height: 4000 mm ü Hydraulic actuator load capacity: 3000 kN in compression 2500 kN in tension ü Total actuator stroke : 150 mm TESTING FRAME Laboratorio PROVE STRUTTURE
PROVE STRUTTURE Test on hollow colums Laboratorio INGEGNERIA SISMICA Le Attrezzature
Attrezzature • Simulazione dell’azione sismica su strutture di grande luce; • Asincronia dell’input; • Impiego singolo o accoppiato • ­­­­­­­­­­­­­­­­­­­­ Progetto di Buffalo
Progetto di Reno­Nevada Laboratorio INGEGNERIA SISMICA
INGEGNERIA SISMICA • Shaking Tables
– Tables able to work
separately
– Asynchronous motion
Synchronous motion
– Table assembly to get 3m
by 6 m wide device
Total investment: 3,5 millions Euro by Regione Campania
Laboratorio INGEGNERIA SISMICA
INGEGNERIA SISMICA • Shaking Tables
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2 shaking table 3x3 m wide
Biaxial x­y motion
Stroke in each direction: +/­ 250 mm
Maximum payload: 20 ton
Maximum velocity: 1 m/s
Maximum acceleration: 1 g
Frequency range: 0 – 50 Hz
Design overturning moment: 125 ton m
Design Yawing moment: 50 ton m
Hydrostatic bearings
Shaking table layout
layout The shaking table
table The shaking table
table hydrostatic bearing
to avoid friction and
ensure high linearity
acceleration signals.
Asynchronous ground motion
Asynchronous ground motion Laboratorio INGEGNERIA SISMICA
INGEGNERIA SISMICA • Hydraulic system
– Modular pumping devices
– Nominal pressure 28 MPa
– Maximum continuous flow: 2000 lpm
– Maximum peak flow: 2400 lpm
– Rigid pipes distribution system
– Stainless steel AISI or carbon ST52 pipes
without welds
Hydraulic power system
power system …such as Hydraulic
Power Pack using
MOOG RKP Pumps…
Hydraulic power system
power system Rete Sismica Multi­ Rete Sismica Multi Componente RETE SISMICA
RETE SISMICA Le attrezzature
attrezzature Ear ly War ning System Control System EWS E System’s Design Maximizing war ning time Minimizing the Pr obability of wr ong decisions