2.1.1 抗震设防烈度seismic precautionary intensity
2.1.2 场地site
2.1.3 地震作用earthquake action
2.1.4 设计基本地震加速度design basic acceleration of ground motion
2.1.5 设计特征周期design characteristic period of ground motion
2.1.6 抗震措施seismic measures
2.1.7 抗震构造措施details of seismic design
2.1.8 固有频率natural frequency
2.1.9 时程曲线time history curve
2.1.10 正弦拍波sine beat |
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