Three-dimensional tests of two-story, one-bay by one-bay, steel concentric braced frames

Keith Palmer, Charles Roeder, Taichiro Okazaki, Carol Shield, Dawn Lehman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Steel concentric braced frames (CBFs) are widely used as systems to resist lateral loads induced from wind and seismic loading. Recent research on full-scale CBF subassemblages has shown that current design provisions fall short of the design intent. Additionally, the effect of imposed out-of-plane deformation on the system has never been evaluated experimentally in this manner. This paper describes the design, test setup and experimental results of two tests performed on a two-story, one-bay by one-bay CBFs, an HSS buckling-brace system in a single-story X-configuration, and a buckling-restrained braced frame (BRBF) in a single-diagonal configuration. The design of the gusset plates for the HSS braces followed a balanced design procedure with an elliptical clearance to permit out-of-plane rotation due to brace buckling. The HSS braces fractured at 2% story drift. The BRBF gusset plate design followed current design standards with the BRB cores fracturing at 3.5% story drift prior to any instabilities.

Original languageEnglish (US)
Title of host publicationStructures Congress 2011 - Proceedings of the 2011 Structures Congress
Pages3057-3067
Number of pages11
DOIs
StatePublished - Jun 13 2011
EventStructures Congress 2011 - Las Vegas, NV, United States
Duration: Apr 14 2011Apr 16 2011

Publication series

NameStructures Congress 2011 - Proceedings of the 2011 Structures Congress

Other

OtherStructures Congress 2011
CountryUnited States
CityLas Vegas, NV
Period4/14/114/16/11

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