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本文对迪兹拱坝的静力和动力再分析结果进行了讨论。这座203.5m高的双曲拱坝,位于地震活跃的扎格罗斯山脉,是目前亚州最高的拱坝。该坝的特点之一是用周边缝把坝体与混凝土鞍座结构分隔开。采用滑移和无拉伸能力的曲线等参数接缝单元进行了非线性静力分析。还做了校正分析。由于库水位的变化,拱冠悬臂梁的径向变位是通过优化大体积的弹性模量进行校正的。最后,本文探讨了最大可信地震的非线性动力分析结果。使用破坏指数叙述了诱发地震的破环,该破坏指数可对不规则应力时程的不同类型进行比较。严密的分析表明,采用现代设计标准比用试载法得出较高的应力。
In this paper, the static and dynamic reanalysis results of the Ditz arch dam are discussed. The 203.5m high double-curvature arch dam, located in the active Zagros Mountains, is the tallest arch dam in Asia. One of the characteristics of the dam is the separation of the dam body from the concrete saddle structure by the perimeter seam. Nonlinear static analysis was carried out using parameters such as the curve of slip and no tensile strength. Also made a correction analysis. Due to the change of reservoir water level, the radial displacement of cantilever arch crown is corrected by optimizing the elastic modulus of large volume. Finally, the paper discusses the nonlinear dynamic analysis of the largest credible earthquake. Destruction indices that induce earthquakes are described using the damage index, which compares different types of irregular stress time history. Tight analysis shows that using modern design standards leads to higher stresses than trial loading.