Structural Control Strategies for Earthquake Response Reduction of Buildings

Asai, Takehiko; Spencer, Billie F., Jr.

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https://hdl.handle.net/2142/79511 Copy

Description

Title

Structural Control Strategies for Earthquake Response Reduction of Buildings

Author(s)

• Asai, Takehiko
• Spencer, Billie F., Jr.

Issue Date

2015-08

Keyword(s)

• Structural control
• Semi-active control
• Magnetorheological damper
• Real-time hybrid simulation
• Negative stiffness

Abstract

Destructive seismic events continue to demonstrate the importance of mitigating these hazards to building structures. To protect buildings from such extreme dynamic events, structural control has been considered one of the most effective strategies. Structural control strategies can be divided into four classes: passive, active, semi-active, and hybrid control. Because passive control systems are well understood and require no external power source, they have been accepted widely by the engineering community. However, these passive systems have the limitation of not being able to adapt to varying conditions. While active systems are able to do that, they require a significant amount of power to generate large control forces. Moreover, the stability of active systems is not ensured. The focus of this report is the improvement and the validation of semi-active control strategies, especially with MR dampers, for building protection from severe earthquakes. To make semi active control strategies more practical, further studies on both the numerical and experimental aspects of the problem are conducted. The research presented in this report contributes the improvement and prevalence of semi-active control strategies in building structures to mitigate seismic damage.

Publisher

Newmark Structural Engineering Laboratory. University of Illinois at Urbana-Champaign.

Series/Report Name or Number

Newmark Structural Engineering Laboratory Report Series 043

ISSN

1940-9826

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/79511

Sponsor(s)/Grant Number(s)

Financial support for this research was provided in part by the Long Term Fellowship for Study Abroad by the MEXT (Ministry of Education, Culture, Sports, Science, and Technology, Japan) and the Newmark Account.

Copyright and License Information

Copyright held by the authors. All rights reserved.

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