拱坝的应力特点和分布规律的研讨

Stress Characteristics and Distribution of Arch Dams

通过东江拱坝等国内外十余座高拱坝在各种荷载及荷载组合下的设计应力特点和对实际运行情况分析，考虑了各种分析方法的合理性，研究了高拱坝应力主要控制部位及其应力状态、特点和分布规律，并根据不同的多轴应力状态提出了拱坝的主要应力控制分区。

Based on the analysis of the stress characteristics of the high arch dam and the actual operating case of the dam under various loads and Combination of loads(more than ten arch dams are chosen internally and externally,including Dongjiang Arch Dam), the major control zone of stress,the stress state,stress characteristiese and stress distribution of the high dams is discussed.In accordance withe different multiaxial stress states,the major control zo ing of the arch dam stress is proposed in order to serve as a basis for a more suitablea design criterion of concete arch dam.