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目前生态复合墙结构体系采用的“两阶段三水准”抗震设计方法已无法满足业主对建筑结构性能目标的个性化要求。将结构特有的三道抗震防线与基于性能的抗震设计理论框架相结合,分别以三道抗震防线的屈服位移值对结构的性能水准进行量化。以倒三角形水平分布荷载等截面剪切型悬臂柱的侧移曲线作为结构的初始侧移模式,结合位移反应谱提出其基于位移设计的具体步骤,并对实例进行了三个性能目标下的设计计算。算例表明:提出的多层生态复合墙结构基于位移的抗震设计方法能够针对不同性能水平进行设计计算,简单实用。
At present, the “two-stage and three-level” seismic design adopted by the ecological composite wall structure system has failed to meet the individualized requirements of the owners for the structural performance objectives of the building. Combining the three unique earthquake-resistant lines with the performance-based seismic design theory framework, the performance level of the structure is quantified by the yield displacement values of three seismic lines respectively. The lateral displacement curve of shear-type cantilever column with horizontal cross-section of inverted triangle is taken as the initial lateral displacement mode of the structure, and the specific steps based on the displacement design are proposed based on the displacement response spectrum. The design is carried out under three performance objectives Calculate. The example shows that the proposed displacement-based seismic design method for multi-story ecological composite wall structure can be designed and calculated for different performance levels, which is simple and practical.