Floor diaphragm interaction with steel self-centering moment frames

Maria Eugenia Moreyra Garlock, Jie Li, Mary Lisbeth Blaisdell

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

4 Scopus citations


Recent research has developed a family of new earthquake-resistant structural systems for steel moment frames that have the potential to eliminate structural damage and return to its original vertical position (i.e. self-center) following a major earthquake. The behavior of this self-centering moment-resisting frame (SC-MRF) is characterized by a gap opening and closing at the beam-column interface under earthquake loading. Energy dissipation is provided by supplemental elements that deform under the gap opening behavior. The gap opening behavior also causes the SC-MRF to expand, where in the deformed position the distance between the column centerlines increases relative to the original distance. This behavior imposes new design requirements on the floor diaphragm design. The objective of this study is to analytically evaluate the effects of the floor diaphragm stiffness, strength, and configuration on the seismic response of a SC-MRF. The results show that these parameters significantly affect the seismic performance of a SC-MRF and the design of the floor diaphragm must be considered when designing this system.

Original languageEnglish (US)
Title of host publication8th US National Conference on Earthquake Engineering 2006
Number of pages10
StatePublished - Dec 1 2006
Event8th US National Conference on Earthquake Engineering 2006 - San Francisco, CA, United States
Duration: Apr 18 2006Apr 22 2006


Other8th US National Conference on Earthquake Engineering 2006
Country/TerritoryUnited States
CitySan Francisco, CA

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology


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