Abstract
In this paper, a new outer-frame system is proposed to retrofit the existing building. The outer-frame system consists of a Visco-Elastic Damper and an Axial Force Transfer Mechanism. To make clear the mechanism of the outer-frame system, static tests of full-scale frame model were conducted. Additionally, the frame analytical model is proposed for structural design. As a result of static tests, the hysteresis characteristics of the outer-frame system show the stable characteristic, and energy absorption performance increases according to a deformation angle. The proposed analytical model can be approximated with sufficient accuracy compared with result of static tests.