000019139 001__ 19139
000019139 005__ 20170118182301.0
000019139 04107 $$aeng
000019139 046__ $$k2017-01-09
000019139 100__ $$aValerio, Marcello
000019139 24500 $$aSeismic Performance of Weak-Base Strong Column Steel Moment Frames

000019139 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019139 260__ $$b
000019139 506__ $$arestricted
000019139 520__ $$2eng$$aSteel moment frames in seismically active regions are designed as strong-base weak-column systems, such that yielding is concentrated in the lower region of the column member, thereby protecting the base connection itself. This is achieved through capacity design of the base connection. This necessitates an expensive base connection, since heavy detailing is required to develop the forces associated with column yielding. However, recent research by the authors and others has shown that column base connections may be highly ductile with excellent dissipative characteristics. The research explores the possibility of a weak-base system that leverages these characteristics. The study is conducted in a Performance Based Earthquake Engineering (PBEE) framework, by examining the effect of base strength on various performance metrics – including probabilities of collapse, and of exceeding critical member forces and interstory drifts. The results indicate promise for these types of systems, but also highlight issues, which arise due to reduce base stiffness that accompanies the weaker base. Limitations of the study are discussed along with directions for future work.

000019139 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019139 653__ $$aBaseplates; Column base connection; Performance-based design; Seismic demand assessment

000019139 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019139 720__ $$aValerio, Marcello$$iZareian, Farzin$$iRodas, Pablo Torres$$iKanvinde, Amit
000019139 8560_ $$ffischerc@itam.cas.cz
000019139 8564_ $$s688270$$uhttps://invenio.itam.cas.cz/record/19139/files/293.pdf$$yOriginal version of the author's contribution as presented on USB, paper 293.
000019139 962__ $$r16048
000019139 980__ $$aPAPER