NEESR-CR: Unbonded Post-Tensioned Rocking Walls for Seismic Resilient Structures
| Sponsor(s): | National Science Foundation (NSF) |
|---|---|
| Investigators: | Sri Sritharan (Principal Investigator) |
| Catherine French (Co-Principal Investigator) | |
| Andrea Schokker (Co-Principal Investigator) | |
| Team Member(s): | Sriram Alaeti |
Project Description:
In collaboration with E-Defense in Japan and researchers at the
University of Auckland in New Zealand, the intellectual merit of this
project is the development of seismic resilient building solutions
utilizing the fundamental characteristics of seismic rocking of both
SRWs and PreWECs. By involving an international, cross-disciplinary
team of experts and two NEES facilities, the project will accomplish
this goal by completing the following objectives:
1)Understand the fundamental characteristics of seismic rocking of
self-centering walls through NEES/international tests, thereby
identifying different energy dissipation sources (i.e., energy loss
due to impact, viscous damping and hysteretic damping).
2) Develop suitable connections between rocking walls and floors, and
quantify the wall-floor-column interactions using large-scale
tests
3) Ensure safety of the rocking systems through sufficient anchorage
of the unbonded tendons.
4) Design seismic resilient structures. 5) Improve numerical
simulation of buildings designed with rocking walls and different
floor systems
6) Formulate design guidelines, educate students, practitioners, and
others (e.g., policymakers) on the significance of the proposed
study.