Device Configuration
The Strong Earthquake Response Simulator(SERS) consists of, 1) 3-dimensional, 6 degress-of-freedom shaking table that can move horizontally in 2 directions (X- and Y-axis) and vertically (Z-axis), rotate around the 3 axis (θx, θy, θz) simultaneously or independently, 2) Dynamic actuator system that can connect shaking test and numerical calculation in real-time, 3) Oil pressured source device and data acquisition and analysis system common for the shaking table and dynamic actuator, 4) Device to independently control the shaking table and dynamic actuator, and 5) Linking response control device and ceiling running crane.
- Skematic Figure of SERS
- Configuration of the Whole System
Device Characteristics
The shaking table can accurately simulate the response of complex structure systems during strong shaking. Shaking tests for small-scale full structure system model or full-scale structure or parts can be carried out. Especially, high velocity strong motion as well as high acceleration is possible. For each axis, the maximum velocity for continuous sine-wave shaking is ±50cm/s, but by using the accumulator, data observed at JMA Kobe during the 1995 Kobe Earthquake(Maximum acceleration: Horizontal 818cm/s/s, Vertical 332cm/s/s, Maximum velocity: Horizontal 90cm/s, Vertical 40cm/s) can be reproduced for simultaneous shaking of 3 axis(X,Y,Z).
The dynamic actuator will obiously act as an psuedo-static and psuedo-dynamic loading, but also, tests using 2 actuators simultaneously can be carried out. By using the linking response control device, shaking tests and numerical calculations and be connected real-time in order to carry out seismic resistance tests from shaking tests of parts of the structure.