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NEES Project Warehouse

Self-Centering Damage-Free Seismic-Resistant Steel Frame Systems
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PRPP sent to PI for review, experiment is already public.

Complete - 05/24/2010

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Experiment-2: Task 8: Large-Scale Experiments on Self-Centering Moment-Resisting Frame (SC-MRF)
Experiment Type: Large Scale
Description: 1. INTRODUCTION
The SC-MRF is a post-tensioned MRF with web friction devices (WFDs) as energy dissipating devices. The WFDs are positioned on the beam web to avoid interference with the floor slab. Using a performance based design (PBD) approach the SC-MRF is designed to be damage-free under the DBE to enable immediate occupancy, while also achieving the performance level of collapse prevention under the MCE. The PT strands run parallel to the beams across multiple bays to precompress the beams to the columns.

2. EXPERIMENTAL PROGRAM
Using the specific design criteria and the performance-based design (PBD) approach shown in Figure 2, a 7x7-bay 4-story prototype building was designed. The building is located on stiff soil in the Los Angeles. The perimeter frames include SC-MRFs. Each perimeter frame has two 2-bay SC-MRFs with WFDs. The floor diaphragm is attached to one bay of each SC-MRF in each perimeter frame to avoid restraining the post-tensioned connections from developing gap opening.
Dates: June 01, 2008 - December 05, 2008
Facility: Lehigh University, PA, United States
Equipment: View Details
Specimen Type: NEES-2005-0077
Material: Component 1 Component 1 (view)
Sensors: New Source Location Plan
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