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http://dx.doi.org/10.5000/EESK.2010.14.5.041

Evaluation of Member Plastic Deformation Demands for Dual Systems with Special Moment Frames  

Eom, Tae-Sung (대구가톨릭대학교 건축학부)
Kim, Jae-Yo (광운대학교 건축학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.14, no.5, 2010 , pp. 41-51 More about this Journal
Abstract
For safe seismic evaluation and design, it is necessary to predict the plastic deformation demands of members. In the present study, a quick and reasonable method for the evaluation of member plastic deformations of dual systems was developed on the basis of results of elastic analysis, without using nonlinear analysis. Plastic deformations of beams, columns, and walls are functions of member stiffness, story drift ratio, and moment redistribution determined from elastic analysis. For dual systems with rigid connections between walls and beams, an increase in the plastic deformations of beams due to the rocking effect was considered. The proposed method was applied to 8-story dual systems and the predicted plastic deformations were compared with the results of nonlinear analysis. The results showed that the proposed method accurately predicted the member plastic deformations with simple calculations, but that for the accurate evaluation of member plastic deformations, the inelastic story drift ratio must also be predicted with accuracy. The proposed method can be applied to both the performance-based seismic design of new structures and the seismic evaluation of existing structures.
Keywords
Plastic deformation; Elastic analysis; Seismic design; Seismic evaluation; Moment redistribution;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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