The seismic performance experiment of bingham material dampers

Abstract

Since Hyougoken-nanbu Earthquake in 1995, improvement of seismic performance of structures comes to significant issues. Installing dampers to structures is recognized as one of effective measures decreasing seismic damage from primary structures. Recently a bingham type damper has been noticed because of its predominant characteristics such as no dependence on both velocity and temperature. In this paper, the bingham dampers with newly composed materials are examined experimentally. Preferable combination between silicon oil and some fillers are found after the dynamic test changing the frequency from one to five Herz.