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首页> 外文期刊>Hydrotechnical Construction >VERIFICATION OF THE EARTHQUAKE RESISTANCE OF THE ARCH-GRAVITY DAM OF THE SAYANO-SHUSHENSKAYA HPP USING THE BODY OF MATHEMATICS OF THE THREE-DIMENSIONAL NONLINEAR WAVE THEORY OF EARTHQUAKE RESISTANCE
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VERIFICATION OF THE EARTHQUAKE RESISTANCE OF THE ARCH-GRAVITY DAM OF THE SAYANO-SHUSHENSKAYA HPP USING THE BODY OF MATHEMATICS OF THE THREE-DIMENSIONAL NONLINEAR WAVE THEORY OF EARTHQUAKE RESISTANCE

机译：利用三维非线性波理论的地震波验证南北-舒申喀亚河HPP拱坝的抗震能力

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摘要

1. In contrast to the linearly elastic dynamic analysis, which failed to support the earthquake resistance of thernSayano-Shushenskaya Dam when subjected to the maximum design earthquake, the strength of the dam during the maximum seismic effect is, according to results of the nonlinear dynamic analysis, ensured by redistribution of forces, dissipation of seismic energy as the joints and cracks open and close, and slip during deformations, and by nonlinear deformation of the concrete.rn2. Restoration of the initial (prior to occurrence of the MDE) strength of the concrete in the zone of probable horizontal crack formation at elevations from 470 to 490 m, the location and dimensions of which will depend on the parameters of the earthquake and the water level in the reservoir, can be accomplished by injecting the defective concrete with modern epoxy or polymeric grouts.rn3. As a basic method of assessing earthquake resistance, the linear-spectral method, which is regulated by Construction Rule and Regulation II-7-81~*, is subjective, has a number of insurmountable drawbacks, and should be replaced by a direct dynamic method of analysis.rn4. In analyzing strong seismic effects (eight points and higher), a direct dynamic analysis should be performed with consideration of nonlinear effects.
机译：1.与线性弹性动力分析不同，线性弹性动力分析在最大设计地震作用下无法支持theSayano-Shushenskaya大坝的抗震能力，根据非线性动力的结果，在最大地震作用下大坝的强度为分析，通过力的重新分配，在连接处和裂缝打开和闭合时的地震能量耗散以及变形过程中的滑移以及混凝土的非线性变形来保证。在470至490 m的海拔高度上可能水平裂缝形成区域中恢复混凝土的初始强度（在MDE发生之前），其位置和尺寸取决于地震参数和水位可以通过向缺陷混凝土中注入现代环氧树脂或聚合物灌浆来完成水库中的注浆.rn3。作为评估抗震性的基本方法，由施工规则和第II-7-81〜*条规定的线性光谱方法是主观的，具有许多无法克服的缺点，应替换为直接动态方法。分析4。在分析强地震影响（八点或更高）时，应考虑非线性影响进行直接动力分析。

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