【摘要】 为合理评价现役混凝老化土坝的抗震安全性,基于线弹性理论,结合衰减函数建立了老化损伤模型,分析了某水电站现役混凝土坝的动力响应。计算结果表明,老化对坝体的动力损伤影响显著,现役混凝土坝抗震安全评价方法的改进为抗震安全问题的进一步研究奠定了基础。更多还原

【Abstract】 To evaluate reasonably the aseismic safety of active service concrete dams,an ageing damage model is established by combining with attenuation function and the theory of linear elasticity.And then it analyzes the dynamic response of concrete dam for a hydropower station.The results show that the ageing degradation has significant impact on the dynamic damage of the dam body;improvement of aseismic safety evaluation method of concrete dam lays foundation of further study on the aseismic safety of concrete dam.更多还原