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近十多年来,对地震力的理论及其计算方法的研究已经有了很大的发展,对重力坝的地震力计算,也已经提出了一些新的方法。目前,美国、日本等大多数国家普遍采用的方法和公式虽然相同,但确定地震系数的依据及规定的数值有一定的差别。本文拟对这些方法加以简单的介绍,并通过实际的例子,对它们进行分析和比较,以供今后设计工作中参考。
In recent ten years, the theory of earthquake force and its calculation methods have been greatly developed, and some new methods have also been proposed for calculating the seismic force of gravity dam. At present, although the methods and formulas commonly used in most countries such as the United States and Japan are the same, there are some differences between the basis for determining the seismic coefficient and the prescribed value. This article intends to introduce these methods briefly, and through the actual examples, analyzes and compares them for reference in the future design work.