Seismic Response of Six-Story Eccentrically Braced Steel Frames with Columns Partially Allowed to Uplift
Abstract eng: Previous studies have suggested that rocking vibration accompanied with uplift motion might reduce the seismic damage of buildings subjected to strong earthquake motions. In this paper, the seismic response of eccentrically braced steel frames with partial columns allowed to uplift is evaluated and compared with that of fixed-base frame by numerical analyses, whose prototype test frame of a full-scale six-story eccentrically braced steel building structure was tested by pseudo-dynamic testing technique in Tsukuba in 1982 to 1984. The results show that the base shears in the column-uplift frames are significantly reduced as compared to the fixed-base frames, while the maximum roof drifts of the uplift models are larger than those of the fixed-base models regardless of the input motion intensity because the rotational rigidity of the uplift-column bases in the uplift model decreases.
Contributors:
Conference Title:
Conference Title:
14th World Conference on Earthquake Engineering
Conference Venue:
Bejing (CN)
Conference Dates:
2008-10-12 / 2008-10-17
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
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Record created 2014-12-05, last modified 2014-12-05
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