Earthquake Behavior of Multiple Arch Dams

该项目的目标是进一步了解连拱坝的线弹性地震行为，使之达到与之相当的水平目前存在重力式和单拱式大坝，从而填补了正在进行的大坝地震问题研究工作中的一个重要空白。将研究的主题包括动态行为的重要特征的识别，力传递机制，水和地基相互作用的影响，地震地面运动产生的应力的量化，以及交叉支撑等加固方法。这项研究将重点放在两个现有的大坝上，作为案例研究。其中一座大坝有作用力振动测试和重要的地震记录，并将这些数据用于比较和相关分析。

The objective of this project is to gain further understanding to the linearly elastic earthquake behavior of multiple arch dams to a level comparable to that which currently exists for gravity and single arch dams, and so fill an important gap in the ongoing research effort on the dam- earthquake problem. Topics which will be investigated include identification of important features of the dynamic behavior, force transfer mechanisms, effects of water and foundation interaction, quantification of stresses generated by earthquake ground motion, and methods of retrofit such as cross-bracing. The study will focus on two existing dams which will be used as case studies. Forces vibration tests and significant earthquake records are available for one of the dams, and these will be used for comparison and correlation analyses.