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提出了隔震结构的直接设计法,介绍了隔震层等效阻尼比和隔震支座等效刚度的迭代方法,并与现行规范中隔震结构所采用的分部设计法进行了系统的对比分析,比较了内力、位移,并统计了钢筋用量。研究结果表明:直接设计法与分部设计法相比,两者总体用钢量相差不大,但在构件层面,具体用钢量与构件种类以及构件平面位置有关,此外,不同高度处同一位置也会存在一定规律性的差异;内力和位移相差不大,因此能够满足安全性和经济性的要求,将过去两阶段的分部设计变为直接设计,一步到位,可方便隔震设计的推广应用。
The direct design method of seismic isolation structure is proposed, the equivalent damping ratio of seismic isolation layer and the equivalent stiffness of seismic isolation support are introduced, and the method of partial design adopted in seismic isolation structure is systematically studied Comparative analysis, compared internal forces, displacement, and statistics of the amount of steel. The results show that there is not much difference between the direct design method and the partial design method. However, at the component level, the specific amount of steel is related to the component type and the position of the component plane. In addition, the same position There will be a certain regularity of differences; internal force and displacement is not much difference, so to meet the safety and economic requirements, the past two stages of the divisional design into a direct design, one-step, it can facilitate the promotion and application of isolation design .