A shaking table test of a three-story reinforced concrete (RC) building was conducted. The tested building is vertically irregular because of the first story’s elevated height and the third story’s added RC walls. In addition to far-field ground motions, near-fault ground motions were exerted on this building. A numerical model of the three-story building was constructed. Comparing with the test results indicates that the numerical model is satisfactory for simulating the seismic response of the three-story building. This validated numerical model was then further applied to look into two issues: the effective section rigidities of RC members and the effects of near-fault ground motions. The study results show the magnitude of the possible discrepancy between the actual seismic response and the estimated seismic response, when the effective section rigidities of the RC members are treated as in common practice. An incremental dynamic analysis of the three-story RC building subjected to one far-field and one near-fault ground motion, denoted as CHY047 and TCU052, respectively, was conducted. In comparison with the far-field ground motion, the near-fault ground motion is more destructive to this building. In addition, the effect of the selected near-fault ground motion (i.e. TCU052) on the building’s collapse is clearly identified.

中文翻译：

---

受近断层地震动作用的垂直不规则建筑物的模拟与分析

对一座三层钢筋混凝土 (RC) 建筑进行了振动台试验。由于第一层的高度升高和第三层增加的钢筋混凝土墙，被测试的建筑物在垂直方向上是不规则的。除了远场地震动，近断层地震动也被施加在这座建筑物上。建立了三层建筑的数值模型。与试验结果对比表明，该数值模型对于模拟三层建筑的地震反应是令人满意的。然后进一步应用这个经过验证的数值模型来研究两个问题：RC 构件的有效截面刚度和近断层地震动的影响。研究结果显示了实际地震反应与估计地震反应之间可能存在的差异的幅度，当钢筋混凝土构件的有效截面刚度按惯例处理时。对分别表示为 CHY047 和 TCU052 的三层 RC 建筑进行了一次远场和一次近断层地震动的增量动力分析。与远场地震动相比，近断层地震动对建筑物的破坏性更大。此外，所选的近断层地震动（即 TCU052）对建筑物倒塌的影响也很清楚。近断层地震动对这座建筑更具破坏性。此外，所选的近断层地震动（即 TCU052）对建筑物倒塌的影响也很清楚。近断层地震动对这座建筑更具破坏性。此外，所选的近断层地震动（即 TCU052）对建筑物倒塌的影响也很清楚。