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 characterization Development 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 Damping force (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

Development of new oil damper for architectural …TOKYO UNIVERSITY OF SCIENCE University Research Administration Center 1-3, Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan E-MAIL:

Download PDF Report

Upload
others
View
2
Download
0

Embed Size (px)

Citation preview

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

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