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在随机地震荷载作用下，结构表现出非线性的滞回特性。研究随机地展下结构的非线性动力响应是进行结构可靠性评估的重要步骤。本文依据随机激励下非线性结构动力响应分析发展的经验，对几个关键问题进行探讨，提出了较为合理的理论和方法，并通过算例分析证实了所提方法的合理
Under random seismic loading, the structure exhibits nonlinear hysteresis characteristics. Studying the nonlinear dynamic response of a randomly developed structure is an important step in evaluating structural reliability. Based on the experience of nonlinear structural dynamic response analysis under random excitation, this paper discusses several key issues, proposes more reasonable theories and methods, and confirms the reasonableness of the proposed method through calculation examples.