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NEES Project Warehouse

Collaborative Developments for Seismic Rehabilitation of Vulnerable Braced Frames
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Complete - 06/09/2016

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Experiment-10: NCBF3-2: UW Non-Seismic Concentrically Braced Frame (NCBF) with Bolted Split Shear Tab and Ductile HSS Brace
Experiment Type: Large Scale
Description: This specimen consisted of a single-bay one-story concentrically braced frame with single-diagonal bracing. The frame was intended to be representative of existing non-seismic concentrically braced frames (NCBFs) with split bolted shear tab connections at brace-beam-column intersections. The connections were deficient with respect to the 2010 AISC Seismic Provisions but the brace was a highly ductile HSS. Connection deficiencies included gusset plate yielding of the Whitmore section, gusset plate shear yielding, beam-to-shear tab bolt bearing and shear, gusset plate-to-shear tab bolt bearing and shear, brace net section rupture, and brace block shear rupture. AWS E71-T11 weld metal, which does not meet minimum toughness requirements for demand critical welds, was used. The specimen was loaded quasistatically through a load beam bolted to the north beam using a reversed cyclic increasing amplitude loading protocol. Traditional physical sensors and optical sensors were installed on the specimen. Portions of the specimen were whitewashed to detect yielding.
Dates: December 19, 2013 - December 19, 2013
Facility: University of Washington, WA, United States
Specimen Type: Braced Frame
Material: Brace Brace (view)
Columns Columns (view)
Bolts Bolts (view)

Sensors: Optotrak
Trial ( ? ) Repetition ( ? ) Interactive ( ? ) UnprocessedConvertedCorrectedDerived
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Related Documents:
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Tags (keywords):
  1. Full scale testing
  2. NCBF
  3. quasi-static
  4. Braced Frame
  5. connection
Cite this work:
Ryan Ballard, Charles Roeder, Dawn Lehman, Jeffery Berman (2015). "NCBF3-2: UW Non-Seismic Concentrically Braced Frame (NCBF) with Bolted Split Shear Tab and Ductile HSS Brace", Network for Earthquake Engineering Simulation (distributor), Dataset, DOI:10.4231/D3P26Q46P