Seismic Failure Mode Control of Tall Steel Buildings by Strengthening the Weaker-Members
Abstract eng: This paper mainly studies seismic failure mode analysis and seismic failure mode controlling of steel tall buildings. Firstly, the structural nonlinear calculation model and the criterion of failure mode are given. Secondly, tall steel buildings’ seismic failure mode control method that based on simultaneous failure principle strengthening weaker- members in the weakest failure mode time after time is presented. Thirdly, the analysis methods of structural integral seismic capacity and capacity storages respectively corresponding to design capacity and yield capacity are presented. Finally, the failure mode, integral seismic capacity and capacity storage corresponding to weakest failure mode are obtained by employing a 15-story steel frame building for limit time history analysis under typical earthquake ground motion and limit Pushover analysis. And controlling method of seismic failure mode of tall steel buildings in this paper is verified practicable. The research in the paper show that tall steel buildings’ seismic failure mode can be control effectively by strengthening weak-members in the weakest failure mode time after time.
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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