A hybrid energy-dissipation device for intelligent buildings

This paper describes the concept, design, development, and testing and evaluation of a hybrid energy-dissipation device, the active slip bracing device (ASBD). The device is a Coulomb-friction-based energy dissipater. It consists of multiple friction surfaces and an active clamping (normal) force mechanism. The ASBD is installed as part of the structural bracing in buildings. It will activate under low amplitude vibrations for assuring human comfort, and also under large amplitudes to avoid or reduce damage to the building, and to enhance the safety and comfort level of its occupants during high winds and earthquakes. The device was tested in a uniaxial testing frame. Experimental results reveal that the ASBD is a viable device with linear friction and energy-dissipation characteristics. The prototype device has proven to be reliable and durable.