Seismic Design and Testing of Propped Rocking Wall Systems
Propped Rocking Wall (PRW) is a proposed innovative technology which combines passive damping with unbonded post-tensioned rocking concrete walls. The objective of this experimental and analytical investigation is to evaluate the seismic performance of PRWs through an earthquake simulator experimental program on a 1:3 scaled PRW specimen designed using the proposed Direct Displacement-Based Design (DDBD) procedure. The seismic performance of the PRW test specimen was shown to be satisfactory and was characterized by the lack of both residual drifts and damage to the concrete wall panel at the end of the tests. In general, the design objectives were satisfied, and the performance of the test model suggested that the DDBD design approach for PRWs was adequate.