000009444 001__ 9444
000009444 005__ 20141205150206.0
000009444 04107 $$aeng
000009444 046__ $$k2008-10-12
000009444 100__ $$aAtlayan, Ozgur
000009444 24500 $$aLightly Damped Moment Resisting Steel Frames

000009444 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009444 260__ $$b
000009444 506__ $$arestricted
000009444 520__ $$2eng$$aThe current U.S. seismic design provisions for steel moment resisting frames generally result in structures for which stiffness is the controlling factor in the design. The design for stiffness often provides considerable overstrength, which reduces rotational ductility demand on the plastic hinges in the structure. Even though the reduction in ductility demand may be considerable, the design provisions do not allow the detailing rules to be waived, resulting in designs which are not economically optimum. This paper presents the results of a study in which a variety of steel frames were designed for strength, and which used added energy dissipation in the form of linear viscous dampers to control the drift. The goal of the study was to provide only enough damping to control the drift, and to this end, it was found that total system damping of 10% critical was sufficient. As shown in the paper, the added damping provided the required drift control, and had the added advantage of minimizing the dispersion which typically occurs in response history analyses carried out under several appropriately scaled ground motions. Such dispersion control is illustrated through Incremental Dynamic Analysis of damped three-story and 9-story buildings in Seattle, Washington.

000009444 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009444 653__ $$aSeismic Design, Viscous Fluid Dampers, Incremental Dynamic Analysis, Structural Steel

000009444 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009444 720__ $$aAtlayan, Ozgur$$iCharney, Finley A.
000009444 8560_ $$ffischerc@itam.cas.cz
000009444 8564_ $$s218388$$uhttps://invenio.itam.cas.cz/record/9444/files/05-06-0165.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-06-0165.
000009444 962__ $$r9324
000009444 980__ $$aPAPER