The paper aims to study a concrete structure, currently used in civil engineering, which has certain symmetries. This type of problem is common in engineering practice, especially in civil engineering. There are many reasons why structures with identical elements or certain symmetries are used in industry, related to economic considerations, shortening the design time, for constructive, simplicity, cost or logistical reasons. There are many reasons why the presence of symmetries has benefits for designers, builders, and beneficiaries. In the end, the result of these benefits materializes through short execution times and reduced costs. The paper studies the eigenvalue and eigenmode properties of vibration for components of the constructions’ structure, often encountered in current practice. The identification of such properties allows the simplification and easing of the effort necessary for the dynamic analysis of such a structure.

中文翻译：

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土木工程中具有对称性的混凝土结构的振动特性

本文旨在研究目前在土木工程中使用的具有一定对称性的混凝土结构。这类问题在工程实践中很常见，尤其是在土木工程中。在工业上使用具有相同元素或某些对称性的结构的原因有很多，出于经济，简化，成本或后勤方面的考虑，出于经济考虑，缩短了设计时间。对称的存在对设计者，建造者和受益者都有好处的原因有很多。最后，这些好处的结果是通过缩短执行时间和降低成本来实现的。本文研究了在当前实践中经常遇到的结构结构部件振动的本征值和本征模性质。