Seismic Legislation as a Result of Quantification of the Structural Evolution of Large Concrete Dams in Romania

Abstract eng:
A large dam represents a notably important type of seismic risk evaluation problem. Not only is the dam in itself a relatively expensive project, but it is intimately involved in the whole economy, through power generation, flood control, irrigation etc. In addition, structural failure of a dam may lead to a major disaster because large populations may be exposed to sudden flooding. The actual situation in Romania is such that it is necessary to deal mostly especially with existing dams and their safety in the future. The first reason is due to the fact they were built in compliance with regulations that are generally not in force present days, the second one being the major changes of the climate that led to an increasing volume of water in the reservoirs. The age of dams is, without doubt, a third logical reason. The paper is focused mainly on the results of a research program entitled “Quantification of the Structural Evolution of Large Dams Based on Numerical and Instrumental Investigations” and on a Romanian new code entitled „Seismic instrumentation of dams”, recently elaborated by the authors.

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