Title:
Experimental Lateral Load Response of Unbonded Post-Tensioned Precast Concrete Walls
Author(s):
Felipe J. Perez, Stephen Pessiki, and Richard Sause
Publication:
Structural Journal
Volume:
110
Issue:
6
Appears on pages(s):
1045-1056
Keywords:
earthquake; post-tensioned; precast; unbonded; walls
DOI:
10.14359/51686159
Date:
11/1/2013
Abstract:
This paper reports on the experimentally observed response of five large-scale, isolated, multi story, unbonded post-tensioned (UPT), precast concrete walls with horizontal joints under combined gravity and lateral loading. Test results show that the limit states that characterize the lateral load response of the walls occur as anticipated. The results demonstrate that the response of UPT precast concrete walls can be controlled by adjusting parameters such as the total area of post-tensioning (PT) steel and the level of prestressing. In addition, the results show that these walls can undergo significant nonlinear lateral drifts without significant damage while maintaining their self-centering characteristics, eliminating residual lateral drift.