DEVELOPMENT OF THE OIL DAMPER WITH STIFFNESS FOR ARCHITECTURAL VIBRATION CONTROL AND EXPERIMENTAL RESEARCH ON STRUCTURAL CHARACTERIZATION

Abstract

This paper indicates test and analysis results of the new oil damper, “Oil Damper with Stiffness”. It was developed to solve some issues about seismic retrofit. There are difficulties to reinforce buildings which are designed by the Old Buildings Standards Act before 1981.

Especially, factory and warehouse buildings have low stiffness. Therefore, it is prevailing to retrofit old building using braces and oil dampers, but this way requires many reinforced areas.

This paper also indicates the analysis model of the damper and effectiveness from the results of time history response analysis using a S.D.O.F. model.