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Lateral Drift Control of High-rise Buildings using Partial Reanalysis Algorithm  

Lee, Jae-Cheol (동명대학교 건축공학과)
Kim, Chee-Kyeong (선문대학교 건축학부)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.22, no.1, 2009 , pp. 81-88 More about this Journal
Abstract
This paper alined at the development of a lateral drift control method that is able to quantitatively control the lateral drift of global node. For this, we applied an efficient partial reanalysis algorithm. By using this algorithm, we could recalculate the displacement and member force of the specific node without reanalyzing the entire structure when member stiffness changes partially. The theoretical concepts of the algorithm are so simple that it is not necessary to solve the complicate differential equation or to repeat the analysis of entire structure. The proposed method calculates the drift contribution of each member for the global displacement according to the variation of section sizes by using the algorithm. Then by changing the member sizes as the order of drift contribution, we could control the lateral drift of global node with a minimum quantity of materials. 20 story braced frame structure system is presented to illustrate the usefulness of proposed method. It is shown that the proposed method is very effective in lateral drift control and the results obtained by proposed method are consistent with those of commercial analysis program.
Keywords
partial reanalysis; lateral drift control; member stiffness change; equivalent load for stiffness;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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