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Mathematical Problems in Engineering
Volume 2013, Article ID 358709, 10 pages
Research Article

Study on Optimal Placement and Reasonable Number of Viscoelastic Dampers by Improved Weight Coefficient Method

1Faculty of Infrastructure Engineering School of Civil Engineering, Dalian University of Technology, Dalian 116024, China
2State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China

Received 19 July 2013; Revised 18 November 2013; Accepted 18 November 2013

Academic Editor: Gangbing Song

Copyright © 2013 Ji-ting Qu and Hong-nan Li. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A new optimal method is presented by combining the weight coefficient with the theory of force analogy method. Firstly, a new mathematical model of location index is proposed, which deals with the determination of a reasonable number of dampers according to values of the location index. Secondly, the optimal locations of dampers are given. It can be specific from stories to spans. Numerical examples are illustrated to verify the effectiveness and feasibility of the proposed mathematical model and optimal method. At last, several significant conclusions are given based on numerical results.