Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
Earthquakes and Structures Volume 5, Number 3, September 2013 , pages 261-276 DOI: https://doi.org/10.12989/eas.2013.5.3.261 |
|
|
Simultaneous optimal damper placement using oil, hysteretic and inertial mass dampers |
||
Yu Murakami, Katsuya Noshi, Kohei Fujita, Masaaki Tsuji and Izuru Takewaki
|
||
Abstract | ||
Oil, hysteretic and inertial mass dampers are representatives of passive dampers used for smart enhancement of seismic performance of building structures. Since oil dampers have a nonlinear relief mechanism and hysteretic dampers possess nonlinear restoring-force characteristics, several difficulties arise in the evaluation of buildings including such dampers. The purpose of this paper is to propose a practical method for simultaneous optimal use of such dampers. The optimum design problem is formulated so as to minimize the maximum interstory drift under design earthquakes in terms of a set of damper quantities subject to an equality constraint on the total cost of dampers. The proposed method to solve the optimum design problem is a successive procedure which consists of two steps. The first step is a sensitivity analysis by using nonlinear time-history response analyses, and the second step is a modification of the set of damper quantities based upon the sensitivity analysis. Numerical examples are conducted to demonstrate the effectiveness and validity of the proposed design method. | ||
Key Words | ||
optimal damper placement; multiple dampers; variable adaptive step length; nonlinear damper; simultaneous optimization | ||
Address | ||
Department of Architecture and Architectural Engineering, Kyoto University. Kyotodaigaku-Katsura, Nishikyo-ku, Kyoto 615-8540, Japan | ||