NRS was strongly related to site conditions and depth, while the BNRS had better consistency among all strong motion records than the conventional NRS under the influence of site condition, depth and motion component.

• 而不同场地不同深度不同分量方向的双规准反应谱之间差别甚小，双规准反应谱比规准反应谱表现出良好的一致性。