The recent development situation on the certainty seismic design theory and the reliability seismic design theory based on structural performance is introduced in this paper.
简述了以变形失效准则为基础的基于性能的抗震结构设计理论进展概况，内容包括：基于性能的确定性抗震设计理论；基于性能的抗震可靠度设计理论。
Performance-based anti-seismic design should be established on the basis of probability because the ground motion and the structural performance are random and uncertain.
指出了由于结构地震响应从地面运动到结构性能两方面固有的随机性和不确定性，使基于性能的抗震设计应当在概率的基础上形成；
Structural performance levels, performance objectives, and usual performance-based seismic design methods are introduced in this paper.
介绍了结构抗震性能水准的划分、抗震性能目标的确定以及常用的基于性能的抗震设计方法。
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