论文部分内容阅读
为提高混凝土重力坝抵抗地震的能力,采取在坝颈部位布置GFRP筋的措施,利用ANSYS有限元软件进行了不同地震加速度峰值作用下的非线性动力时程分析,并比较了坝体布置和未布置GFRP筋两种情况下的坝体裂缝分布和主应力形态。结果表明,坝颈部GFRP筋加固措施对增强混凝土重力坝抗震性能有一定作用。
In order to improve the ability of concrete gravity dam to resist earthquakes, the measures of placing GFRP tendons on the site of the dam and the neck are adopted. The nonlinear dynamic time history of the dam under different earthquake acceleration peaks is analyzed by ANSYS finite element software. The crack distribution and the main stress morphology of the dam under two kinds of cases without GFRP reinforcement are arranged. The results show that the reinforcement measures of the dam and the neck of GFRP tendons have a certain effect on enhancing the seismic performance of the concrete gravity dam.