TOKYO UNIVERSITY OF SCIENCE University Research Administration Center
1-3, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan E-MAIL: [email protected]
Development of new oil damper for architectural vibration control and experimental research on structural characterizationDevelopment of new oil damper for architectural vibration control and experimental research on structural characterization
Architectural devices
2017.03
Purpose of Research
Develop a new vibration control system to solve problems with methods used when reinforcing buildings based on old earthquake standards.
Conventional method New method
Reinforcement that adds rigidity Damper that dampens
Proposing a new vibration control system to resolve
problems
Problems・ Growing construction
costs・ Decrease in the number
of openings
Oil damper with a spring, a new vibration control system with
rigidity and damping properties
Purpose of Research
Osamu TAKAHASHI (Professor, Department of Architecture, Faculty of Engineering, Tokyo University of Science)
The oil damper with a spring is a new vibration control damper that combines an oil damper for building vibration control and visco-elastic and highly damping materials.
・ With respect to random input waves, the results of analysis enable tracing of the results of experiment with sufficient accuracy.
・ Use of the analytical model of the proposed oil damper with a spring enables analysis of vibration in the structural design of actual buildings.
Summary of Research
Future Developments
We will examine the vibration characteristics and structural safety of the damper in order to apply it to actual buildings.
Oil damper with a spring as a test body
Displacement (mm)
Analytical model of the oil damper with a spring
The new oil damper with a spring is more rigid and damping than the conventional type of building oil damper At the time of design, temperature dependency does
not need to be considered in the range of temperatures at which the damper is expected to be used (room temperature to +50ºC)
Damping force-displacement relationship
Dam
pin
g fo
rce
(kN
)
Comparison of the results of experiments and those of analysis
I edge contact Connecting
point O
J edge contact
Friction damper with a spring
Friction damper with a spring
Oil damper
Experimental values
Analytical values
Points
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