半刚接钢框架内填RC墙结构抗震设计方法(Ⅱ):算例

作者在文献1]中提出了半刚接钢框架内填RC墙结构（简称PSRCW）的两阶段抗震设计方法。该文用此方法设计了1榀6层3跨PSRCW结构,采用塑性机构法、Pushover分析方法及弹塑性时程法对设计算例进行了地震反应分析,评估了算例结构的抗震性能。结果表明：塑性机构法同采用组合斜压板带模型所得到的极限水平承载力相近,结构的整体超强系数为3.34,具有较大的抗侧能力和超强性能。在多遇及罕遇地震下结构的层间侧移比满足现行抗震规范要求,结构具有良好的抗震性能,进一步证明了PSRCW结构的两阶段抗震设计方法的合理性。

Seismic design method of partially-restrained steel frame with RC infill walls (Ⅱ): Numerical verification

In the companion paper, a two-stage seismic design methodology of partially-restrained steel frame with RC infill walls (PSRCW) was proposed. A six-story three-span PSRCW was designed by the new design method, and the seismic behavior of PSRCW was evaluated based on the plastic mechanism method, pushover analysis, and nonlinear time history method. The analysis results show that the ultimate lateral bearing capacity of PSRCW estimated by the plastic mechanism method is similar to that analyzed by the pushover analysis using the simplified composite inclined compression strut model. The PSRCW structure has enough lateral load-bearing capacity, and the overstrength of PSRCW is approximately 3.34. The drifts of PSRCW under frequent and rare earthquake hazard levels can satisfy the drift limit requirements of the current Chinese seismic code. The reliability of the proposed design method is further verified.