INVESTIGATION OF THE DYNAMIC CHARACTERISTICS OF A MULTI-STORY BUILDING WITH A POLYMER CONCRETE FRAME

Ukraïnsʹkij žurnal budìvnictva ta arhìtekturi Pub Date : 2023-10-08 DOI:10.30838/j.bpsacea.2312.290823.56.970

A.M. Gaidar, O.P. Martysh, O.O. Martysh, A.O. Rugenskii

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Abstract

Formulation of the problem. An urgent problem in construction is the development and introduction of new types of structural materials with improved characteristics: high strength, resistance to aggressive environments, frost resistance, etc. One of these materials is polymer concrete. Polymer concretes can be effectively used in modern construction in the manufacture of monolithic elements of structures, such as wall panels, slabs, columns of frame buildings. The purpose of the work is to study the dynamic characteristics of a multi-story building with a polymer concrete frame under the action of seismic loads. Method. Dynamic calculations were carried out using the finite element method in the LIRA−CAD software complex. Scientific novelty. New analytical formulas have been obtained, which allow an approximate estimation of the dimensions of structural elements of polymer concrete buildings. It was determined how changes in the properties of the frame material affect the weight of the building, the frequency of natural oscillations and displacement under the action of seismic loading. Practical significance. The results of the work make it possible to perform design calculations related to the dynamic properties of multi-story buildings with a polymer concrete frame. Conclusions. The use of polymer concrete for the construction of frames of multi-story buildings allows to reduce the cross-sectional dimensions of structural elements, reduce the weight and material consumption of buildings.

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聚合物混凝土框架多层建筑动力特性研究

问题的表述。建设中迫切需要解决的问题是开发和引进具有改进特性的新型结构材料:高强度、耐腐蚀性环境、抗冻性等。其中一种材料是聚合物混凝土。聚合物混凝土可以有效地用于现代建筑中制造结构的整体元件，如框架建筑的墙板、板、柱。本文的目的是研究多层聚合物混凝土框架建筑在地震荷载作用下的动力特性。方法。在LIRA - CAD软件复合体中使用有限元法进行动态计算。科学的新奇。得到了新的解析公式，可以近似地估计聚合物混凝土建筑结构单元的尺寸。确定了框架材料性能的变化如何影响建筑物的重量，地震荷载作用下的自然振荡频率和位移。现实意义。工作的结果使得对具有聚合物混凝土框架的多层建筑的动力特性进行设计计算成为可能。结论。使用聚合物混凝土建造多层建筑的框架，可以减少结构元件的横截面尺寸，减少建筑物的重量和材料消耗。

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Ukraïnsʹkij žurnal budìvnictva ta arhìtekturi

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