Experimental Study on Structural Control for Seismic Loads Using Passive and Active Devices

by Keiji Shiba, Shimizu Corp, Japan,
Yutaka Nakamura, Shimizu Corp, Japan,
Haruhiko Yokota, Shimizu Corp, Japan,



Document Type: Proceeding Paper

Part of: Seismic Engineering: Research and Practice

Abstract:

The feasibility of controlling the responses of structures against seismic loads is investigated through some experiments and numerical analyses for both the passive and active control methods. As a passive control device, a viscoelastic damper (VED) made of a viscoelastic material (VEM) is proposed. As an active control device, an active mass damper (AMD) system is investigated. The effectiveness of these devices were confirmed through shaking table experiments using a reduced six-story steel frame and a dynamic loading test. From the results of a numerical analysis, the responses of a 25-story building were found to be reduced to 50% in absolute acceleration by attaching VED in each story.

Subject Headings: Dynamic loads | Structural control | Seismic loads | Numerical analysis | Earthquake resistant structures | Damping | Structural analysis

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