Title:
Analytical and Experimental Study of Concentrically Braced Frames with Zipper Struts

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dc.contributor.advisor Leon, Roberto T.
dc.contributor.advisor DesRoches, Reginald
dc.contributor.author Yang, Chuang-Sheng en_US
dc.contributor.committeeMember Zureick, Abdul Hamid
dc.contributor.committeeMember Craig, James
dc.contributor.committeeMember White, Don
dc.contributor.department Civil and Environmental Engineering en_US
dc.date.accessioned 2007-03-27T18:02:41Z
dc.date.available 2007-03-27T18:02:41Z
dc.date.issued 2006-11-20 en_US
dc.description.abstract This thesis investigates the performance of concentrically braced zipper frames through complementary experimental and numerical simulation approaches and proposes a design methodology for an innovative bracing scheme labeled as the suspended zipper frame. The suspended zipper frame intends to ensure that the top-story hat truss remains elastic, resulting in very ductile behavior of the structure. In the first part of the work, a three-story prototype frame was designed based on a preliminary design method. Three tests were conducted on one-third scale models of this prototype to verify the design procedure and assess the system performance under very different load histories. Comparisons of the results between analyses and experiments validated the partial-height zipper mechanism envisioned, and led to refinements of the design procedure and establishment of appropriate design details for these frames. The design and performance of this structural system are illustrated with three-, nine-, and twenty-story buildings designed for the same masses as those used in the SAC studies for the Los Angeles area. The proposed design strategy results in suspended zipper frames having more ductile behavior and higher strength than typical zipper frames. In addition, the suspended zipper frames also appear to reduce the tendency of chevron-braced frames to form soft stories and to improve seismic performance without having to use overly stiff beams. Finally, an explanation of the design philosophy as well as code language format of the design procedure is given. en_US
dc.description.degree Ph.D. en_US
dc.format.extent 4569354 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/13940
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Steel frames en_US
dc.subject Zipper braced frames en_US
dc.subject Concentrically braced frames en_US
dc.subject Seismic design en_US
dc.subject Struts en_US
dc.subject Experiments en_US
dc.subject.lcsh Struts (Engineering) en_US
dc.subject.lcsh Structural frames en_US
dc.subject.lcsh Earthquake resistant design en_US
dc.title Analytical and Experimental Study of Concentrically Braced Frames with Zipper Struts en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.corporatename School of Civil and Environmental Engineering
local.contributor.corporatename College of Engineering
relation.isOrgUnitOfPublication 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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