考虑土-结构相互作用的框架自由振动简化分析方法

IF 2.2 4区工程技术 Q2 ENGINEERING, CIVIL

Structural Engineering and Mechanics Pub Date : 2021-01-01 DOI:10.12989/SEM.2021.77.1.037

Döndü Kara, K. B. Bozdoğan, Erdinç Keskin

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引用次数: 1

摘要

本文提出了一种软弱地基上框架-剪力墙体系的自由振动分析方法。在该方法的发展过程中，将构成上部结构的框架-墙体系建模为弯剪梁。在研究中，人们普遍认为土层是各向同性的、均匀的和弹性的，波只是垂直传播的剪切波。基于这一假设，将下面的土层建模为等效剪力梁。然后用一种不同的方式分别为这两个区域写出代表整个系统行为的微分方程组。利用边界条件求解微分方程得到自然周期。在研究的最后，对两个算例进行了求解，并对所提出的方法对有限元法的适用性进行了评价。

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A simplified method for free vibration analysis of wall-frames considering soil structure interaction

In this study, a method for free vibration analysis of wall-frame systems built on weak soil is proposed. In the development of the method, the wall-frame system that constitutes the superstructure was modeled as flexural-shear beam. In the study, it is accepted that the soil layers are isotropic, homogeneous and elastic, and the waves are only vertical propagating shear waves. Based on this assumption, the soil layer below is modeled as an equivalent shear beam. Then the differential equation system that represented the behavior of the whole system was written for both regions in a separate way. Natural periods were obtained by solving the differential equations by employing boundary conditions. At the end of the study, two examples were solved and the suitability of the proposed method to the Finite Element Method was evaluated.

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来源期刊

Structural Engineering and Mechanics 工程技术-工程：机械

CiteScore

3.80

自引率

18.20%

发文量

审稿时长

11 months

期刊介绍： The STRUCTURAL ENGINEERING AND MECHANICS, An International Journal, aims at: providing a major publication channel for structural engineering, wider distribution at more affordable subscription rates; faster reviewing and publication for manuscripts submitted; and a broad scope for wider participation. The main subject of the Journal is structural engineering concerned with aspects of mechanics. Areas covered by the Journal include: - Structural Mechanics - Design of Civil, Building and Mechanical Structures - Structural Optimization and Controls - Structural Safety and Reliability - New Structural Materials and Applications - Effects of Wind, Earthquake and Wave Loadings on Structures - Fluid-Structure and Soil-Structure Interactions - AI Application and Expert Systems in Structural Engineering. Submission of papers from practicing engineers is particularly encouraged.