| 论混凝土坝抗震设计与计算中混凝土动态弹性模量的合理取值 |
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| 引用本文： | 朱伯芳. 论混凝土坝抗震设计与计算中混凝土动态弹性模量的合理取值[J]. 水利水电技术, 2009, 40(11) |
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| 作者姓名： | 朱伯芳 |
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| 作者单位： | 中国水利水电科学研究院,北京,100038 |
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| 基金项目： | 中国工程院咨询项目"金沙江溪洛渡水电站重大技术问题研究"，国家自然科学基金雅砻江联合基金重大项目 |
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| 摘 要： | 目前我国混凝土坝抗震设计与计算中,混凝土动态弹性模量取值偏小较多,其结果导致动态变位和坝体自振周期偏大,而地震荷载偏小.笔者给出了混凝土坝抗震设计和计算中混凝土动态弹性模量的合理取值方法.
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| 关 键 词： | 混凝土坝 抗震设计 混凝土动态弹性模量 |
On the dynamic elastic modulus of concrete in the anti-earthquake design of concrete dams |
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| ZHU Bo-fang. On the dynamic elastic modulus of concrete in the anti-earthquake design of concrete dams[J]. Water Resources and Hydropower Engineering, 2009, 40(11) |
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| Authors: | ZHU Bo-fang |
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| Abstract: | The value of the dynamic elastic modulus of concrete adopted in the anti-earthquake design of concrete dams is too low. As a result, the computed dynamic displacements and the natural periods of vibration are two large and the computed earthquake loads are two low. It is suggested to compute the dynamic elastic modulus of concrete by E_d = r_dE_s, where E_s is the instantaneous elastic modulus of concrete and r_d is a coefficient greater than 1.0, r_d≌1.15. |
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| Keywords: | concrete dam anti-earthquake design dynamic elastic modulus of concrete |
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