Development of the Generated Sequential Displacement Procedure and the SimulatedSeismic Testing of the TCCMAR 3-Story In-Plane Walls

摘要

A testing methodology for subjecting full-scale reinforced concrete masonrystructures to simulated seismic loads under laboratory conditions was developed, and the test method implementation and verificationon three-story full-scale reinforced masonry shear walls are discussed. The new GSD (Generated Sequential Displacement) test method allows realistic seismic load simulation and the trace of higher mode effects, even in the initial undamaged state of the structure. Problems typically associated with the stiff coupling between servo-controlled actuators in a multi-degree of freedom system were overcome with the introduction of elastomeric loading pads, which act as displacement amplifiers in the loading system. Advances in the on-line actuator control algorithm also allowed testing without artificial numerical damping in the time integration scheme, thus permitting the tested three-degree of freedom structural masonry walls to respond with lateral load implementation verification is described in detail together with seismic response characteristics of the 3-story walls.