Shaking table testing of a multi-storey post-tensioned glulam building preliminary experimental results

Shaking table testing, Multi-storey timber frame building, Pres-Lam technology, Additional hysteretic energy dissipationsystems, Seismic response of timberABSTRACTThis paper describes the results of preliminary shaking table testing performed on a post-tensioned glulam framedbuilding in the structural laboratory of the University of Basilicata in Potenza, Italy. This experimental campaignis part of a series of experimental tests in collaboration with the University of Canterbury in Christchurch, NewZealand. The specimen is 3-dimensional, 3-storey, 2/3rd scale and is made up of post-tensioned timber frames inboth directions. During the testing programme the specimen was tested with and without the addition of dissipativesteel angle reinforcing which was designed to yield at a certain level of frame drift. These steel angles release energythrough hysteresis during movement thus increasing damping. The specimen was subjected to a selection of naturalearthquake records with increasing (as % of PGA) levels of seismic loading. This paper briefly discusses the testingset-up and then presents the result of the first phase of experimental testing with and without additional reinforcing.