The investigation about embodiment of vertical isolation structure

In order to realize the concept of a vertical isolation system called common deck system, research and development on the vertical isolation structure is now underway. In its first step, structure plans of each of the isolation element and the damper element will be drawn up, and in the next step, tests on these elements will be planed, executed, analyzed, and evaluated, to be reflected to the structure plan. In this report, the study of analysis, the structure plan and test plan of vertical isolation devices is reported. The appropriateness of analysis was confirmed by comparison between test results and analysis results. And the loading mechanism and the stress condition of dish spring as piling five lines were analyzed. The formula of Creep was examined on creep test results. And the influence of amount of deformation by creep behavior was made clear on the life of building. The characteristic of loading in actual typical model was presumed by test results, design formula and FEM analysis. These results were mostly coincided and the appropriateness of design method was confirmed. Response displacement of a vertical isolation and response acceleration of primary instruments were analyzed and confirmed beyond restriction values by dynamic analysis. The total fabrication of isolation device and each component were drowned on the result of these studies. The scale of test model was estimated and the map of test model was drowned. And several test plans reflects design guideline were made. (author)