Paper Title
Development of Spherical Bearings Utilizing Eccentric Rotation Mechanisms

Abstract
The spherical bearing is used widely for these is micretrofitofrailway bridges to control horizontal forces by means of a horizontal resistance device. However, thespherical bearing demand sinc reased size of its resistance device, upper plate, and lower plate when higher resistance to the horizontal force is required, which results in loss of cost-effectiveness and constructability. Therefore, a spherical bearing utilizing an eccentric rotating mechanism is proposed to minimize such problem. Previous studies have confirmed the compliance of this new bearing with major performance indicators like the Korean Standards and other domestic performance quality standards. In this study, we compare the experimental results obtained in previous research with those of a detailed analysis model to assess the reliability of the model. Keywords – Seismic Retrofit, Eccentric Rotary Body, Bridge Bearing.