Outline

Ingegneria Sismica

Ingegneria Sismica

SEISMIC PERFORMANCE COMPARISON OF TALL BUILDINGS EQUIPPED WITH VISCOUS, VISCOELASTIC, FRICTION, AND METALLIC YIELDING DAMPERS INCLUDING THE EFFECT OF FOUNDATION FLEXIBILITY

, Mostafa Ghalami Hamed Rahman Shokrgozar., , Vahid Jahangiri., and , Mohamad Motamedi. “SEISMIC PERFORMANCE COMPARISON OF TALL BUILDINGS EQUIPPED WITH VISCOUS, VISCOELASTIC, FRICTION, AND METALLIC YIELDING DAMPERS INCLUDING THE EFFECT OF FOUNDATION FLEXIBILITY.” Ingegneria Sismica Volume 39 Issue 2: 57-86, doi:….

Abstract

In this work, the efficiency of four passive energy dissipation means, including viscous, viscoelastic, friction, and metallic yielding dampers, in high-rise building response was evaluated and compared. Conventional analyses and designs generally neglect the effects of soil and foundation flexibility. This effect is also considered in this study. First, a 20-story building with a steel moment frame was considered. Then, the nonlinear 2D model of this building is developed and subjected to nonlinear static pushover analysis to identify the floors that need a damper. The Response Reduction Theory method is used for this purpose. After designing each damper, four different models were replicated using viscous, frictional, metallic, and viscoelastic dampers. Each model was subjected to nonlinear dynamic analysis using ten far-fault ground motion records. The structural responses were extracted in the uncontrolled condition and in four controlled conditions with dampers. The results show that the metallic yielding and viscoelastic dampers have the best performance in reducing the structural responses than viscous and frictional dampers.

Related Articles

Naser Khaji1, Ali Ahmadi1
1Civil and Environmental Engineering Program, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
Pınar USTA EVCİ1, Cemile ÜNVEREN1, Ali Ekber SEVER1, Elifnur ŞAKALAK1
1Isparta University of Applied Sciences, Faculty of Technology Department of Civil Engineering, 32260 Isparta, Türkiye
Mohamed A. Tohamy1, Mostafa M. ElSayed1, Adel. Y. Akl1
1Department of Structural Engineering, Faculty of Engineering, Cairo University, 12613 Giza, Egypt
Mehmet Yigitbas1, Ernesto Grande1, Maura Imbimbo1
1Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043, Cassino FR, Italy
Yan Shi1, Xuexin Wang1, Qianzhan Cheng1, Zhao Cheng1
1School of Civil and Hydraulic Engineering, Lanzhou University of Technology, 730050 Lanzhou, China