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HOME > Technology
> Facilities > Hybrid Seismic Testing System Shaking
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Hybrid Seismic Testing System
Shaking table |
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[Installed : March in 2003] |
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| [Summary] |
This
shaking table has a maximum stroke of ±500 mm and a capacity for shaking
at an earthquake wave with a pulse velocity amplitude (more than 1 m/s) at a period
of about one second, observed at recent huge earthquakes such as Hyogo Prefecture
South Area Earthquake, as well as shaking at an arbitrary wave. A control section
has a real-time reaction force compensating control mechanism to generate a shaking
force to cancel the reaction of a large-scale sample. The shaking table can reproduce
correctly acceleration and frequency characteristics of a seismic wave by applying
a feedback of acceleration of the shaking table, displacement, and differential
pressure, with responding earthquake destruction testing at the higher acceleration.
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| [Objective] |
This testing system is intended to conduct full-scale
shaking destruction tests of ground foundation and structures by hybrid testiing
linking numerical analysis, shaking table and actuators. This verifies seismic
performance assessment and achieves high standard applications. |
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| [Specification] |
Shaking table dimensions : 5m×5m
Loading mass : 60ton Shaking direction : Horizontal uniaxial
Maximum displacement : ±500mm
Maximum velocity : ±150cm/sec
Maximum acceleration : ±1.0G
Shaking frequency : DC~30Hz Driving system : Electro-hydraulic servo system |
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