EFFECT OF SOIL FLEXIBILITY ON FREE VIBRATION OF SINGLE DEGREE OF FREEDOM SYSTEMS

The assumptions of frame supports being hinged or fully rigid; storey masses being concentrated at the floor levels; distributed masses and deformations of the columns being neglected are frequently seen in dynamic analysis of frames because of less effort in calculation. In practice, however, colum...

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Main Author: Oktay DEMİRDAĞ
Format: Article
Language:English
Published: Pamukkale University 2005-03-01
Series:Pamukkale University Journal of Engineering Sciences
Subjects:
Online Access:http://dergipark.ulakbim.gov.tr/pajes/article/view/5000089550
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author Oktay DEMİRDAĞ
author_facet Oktay DEMİRDAĞ
author_sort Oktay DEMİRDAĞ
collection DOAJ
description The assumptions of frame supports being hinged or fully rigid; storey masses being concentrated at the floor levels; distributed masses and deformations of the columns being neglected are frequently seen in dynamic analysis of frames because of less effort in calculation. In practice, however, column bases of frames may usually rotate and translate a little due to elastic behavior of soil. In this case, semi-rigid support behavior can be modeled using elastic spring against rotation at the column bases of frames. In this study, free vibration of semirigid supported single degree of freedom (SDOF) systems is studied including distributed mass and P-? effect of the columns and natural frequencies are obtained. Effects on frequency values of rotational spring coefficients at the column base and of axial force are presented in tables and graphs.
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spelling doaj.art-893329a90e3245a9b2cc2bc08ba14a4b2023-02-15T16:11:33ZengPamukkale UniversityPamukkale University Journal of Engineering Sciences1300-70092147-58812005-03-011134494555000083618EFFECT OF SOIL FLEXIBILITY ON FREE VIBRATION OF SINGLE DEGREE OF FREEDOM SYSTEMSOktay DEMİRDAĞThe assumptions of frame supports being hinged or fully rigid; storey masses being concentrated at the floor levels; distributed masses and deformations of the columns being neglected are frequently seen in dynamic analysis of frames because of less effort in calculation. In practice, however, column bases of frames may usually rotate and translate a little due to elastic behavior of soil. In this case, semi-rigid support behavior can be modeled using elastic spring against rotation at the column bases of frames. In this study, free vibration of semirigid supported single degree of freedom (SDOF) systems is studied including distributed mass and P-? effect of the columns and natural frequencies are obtained. Effects on frequency values of rotational spring coefficients at the column base and of axial force are presented in tables and graphs.http://dergipark.ulakbim.gov.tr/pajes/article/view/5000089550Zemin fleksibilitesi, TSD sistem, Serbest titreşim, P-? etkisi
spellingShingle Oktay DEMİRDAĞ
EFFECT OF SOIL FLEXIBILITY ON FREE VIBRATION OF SINGLE DEGREE OF FREEDOM SYSTEMS
Pamukkale University Journal of Engineering Sciences
Zemin fleksibilitesi, TSD sistem, Serbest titreşim, P-? etkisi
title EFFECT OF SOIL FLEXIBILITY ON FREE VIBRATION OF SINGLE DEGREE OF FREEDOM SYSTEMS
title_full EFFECT OF SOIL FLEXIBILITY ON FREE VIBRATION OF SINGLE DEGREE OF FREEDOM SYSTEMS
title_fullStr EFFECT OF SOIL FLEXIBILITY ON FREE VIBRATION OF SINGLE DEGREE OF FREEDOM SYSTEMS
title_full_unstemmed EFFECT OF SOIL FLEXIBILITY ON FREE VIBRATION OF SINGLE DEGREE OF FREEDOM SYSTEMS
title_short EFFECT OF SOIL FLEXIBILITY ON FREE VIBRATION OF SINGLE DEGREE OF FREEDOM SYSTEMS
title_sort effect of soil flexibility on free vibration of single degree of freedom systems
topic Zemin fleksibilitesi, TSD sistem, Serbest titreşim, P-? etkisi
url http://dergipark.ulakbim.gov.tr/pajes/article/view/5000089550
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