STRUCTURAL CHARACTERISTIC FACTOR OF HYBRID STRUCTURE CONSTRUCTED OF LIGHT GAUGE STEEL CONSTRUCTION AND STEEL MOMENT FRAME

Abstract

In this study, the cyclic hysteretic characteristics and collapse mode of hybrid structure, which is constructed of light gauge steel construction and steel moment frame, is cleared by static cyclic loading. These hybrid structures are composed of different restoring force characteristic components, steel moment frames and shear walls. Using this experimental results, structural characteristic factor (Ds) is evaluated by current methods, and it is shown that Ds factor by current methods are not agreeable to actual condition of hybrid structures. So, a new evaluation method for adapting to hysteretic characteristics of hybrid structure is presented. Additionally, the seismic response analysis is done by using the hysteretic characteristics of steel moment frame and light gauge steel house shear wall which are obtained from experiments. The Ds factor corresponding to the allowable story drift angle is evaluated by cumulative plastic deformation magnification. This Ds factor is compared with the Ds factor getting by new evaluation method, in order to show that the new evaluation method is correct and available.