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Seismic performance and probabilistic collapse resistance assessment of steel moment resisting frames with fluid viscous dampers
Earthquake engineering & structural dynamics, 2014-11, Vol.43 (14), p.2135-2154
Seo, Choung-Yeol
Karavasilis, Theodore L.
Ricles, James M.
Sause, Richard
2014
Details
Autor(en) / Beteiligte
Seo, Choung-Yeol
Karavasilis, Theodore L.
Ricles, James M.
Sause, Richard
Titel
Seismic performance and probabilistic collapse resistance assessment of steel moment resisting frames with fluid viscous dampers
Ist Teil von
Earthquake engineering & structural dynamics, 2014-11, Vol.43 (14), p.2135-2154
Ort / Verlag
Chichester: Blackwell Publishing Ltd
Erscheinungsjahr
2014
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
SUMMARY This paper evaluates the seismic resistance of steel moment resisting frames (MRFs) with supplemental fluid viscous dampers against collapse. A simplified design procedure is used to design four different steel MRFs with fluid viscous dampers where the strength of the steel MRF and supplemental damping are varied. The combined systems are designed to achieve performance that is similar to or higher than that of conventional steel MRFs designed according to current seismic design codes. Based on the results of nonlinear time history analyses and incremental dynamic analyses, statistics of structural and non‐structural response as well as probabilities of collapse of the steel MRFs with dampers are determined and compared with those of conventional steel MRFs. The analytical frame models used in this study are reliably capable to simulate global frame collapse by considering full geometric nonlinearities as well as the cyclic strength and stiffness deterioration in the plastic hinge regions of structural steel members. The results show that, with the aid of supplemental damping, the performance of a steel MRF with reduced design base shear can be improved and become similar to that of a conventional steel MRF with full design base shear. Incremental dynamic analyses show that supplemental damping reduces the probability of collapse of a steel MRF with a given strength. However, the paper highlights that a design base shear equal to 75% of the minimum design base shear along with supplemental damping to control story drift at 2% (i.e., design drift of a conventional steel MRF) would not guarantee a higher collapse resistance than that of a conventional MRF. At 75% design base shear, a tighter design drift (e.g., 1.5% as shown in this study) is needed to guarantee a higher collapse resistance than that of a conventional MRF. Copyright © 2014 John Wiley & Sons, Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 0098-8847
eISSN: 1096-9845
DOI: 10.1002/eqe.2440
Titel-ID: cdi_proquest_miscellaneous_1642314466
Format
–
Schlagworte
Collapse
,
collapse assessment
,
Computational fluid dynamics
,
Damping
,
Design engineering
,
Earth sciences
,
Earth, ocean, space
,
Earthquakes, seismology
,
Engineering and environment geology. Geothermics
,
Engineering geology
,
Exact sciences and technology
,
Frames
,
Internal geophysics
,
Magnetorheological fluids
,
seismic design
,
Shear
,
steel MRFs
,
Structural steels
,
viscous dampers
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