evaluation of superposition methods Ho, Iuan-ming creator Wireland, Martin Chairperson Loo, Yew-Chaye Examination Committee Usami, Tsutomu Examination Committee Chines Petroleum Corporation, R.O.C Scholarship Donor text th Bangkok Asian Institute of Technology 1983 monographic eng

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vi, 68 p. Nowadays, the response spectrum technique is widely used in practice for the earthquake analysis of buildings adopting the square root sum of squares superposition of modal response parameters. However, it is not admissible to apply the same method in its original form to other types of structures, such as arch dams which have different response characteristics. Different superposition techniques are compared for the earthquake analysis of arch dams for empty reservoir condition. Dam-foundation interaction effects are disregarded. In the first step, time-history analyses of two existing arch dams in Thailand (Bhumiphol Dam) and Taiwan (Feitsuiku Dam) are carried out, in order to evaluate the response which is used as basis of comparison for the response spectrum technique. In the second step, the following superposition methods are tested: absolute sum rule; square root sum of squares rule; p-norm rule (p=1.8, 1.9, 2.1, 2.2) : and the complete square root sum of squares seems to be the best for evaluating the stress and displacement response of arch dams. After identifying the best superposition technique it becomes possible to apply the response spectrum technique with confidence to arch dam. Relatively inexpensive methods of dynamic analyses become more important as hydro-electric schemes are being planned in may regions with high seismic activity, most of them in developing countries. A thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1983 Structural dynamics Dams Earthquake effects Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B20983 http://203.159.5.9/ait-thesis/detail.php?q=B20983 040898 20260817162941.0