Seismic Shaking Table

A full-scale shaking table facility in the structures laboratory at the University of New Hamshire’s Department of Civil Engineering will be operable April 2005. The facility will enable full-scale experimentation of two- and three-story buildings subjected to various earthquake ground motions by way of response monitoring and control. The table’s structural load capacity will be 24,000 pounds, and the table itself will have dimensions 13 feet x 9 feet; uni-axial loading will be forced at a maximum ground acceleration of 3g through a hydraulic actuator at +/- 3 inch stroke. The displacement-controlled actuator will be monitored and compensated through a multi-stage servo-valve controller.