Journals / Journal of Scientific Reports-A / 2026 / Issue: 011

FREE VIBRATION OF SINGLE STOREY FRAMES MODELED AS TIMOSHENKO COLUMN INCLUDING SOIL FLEXIBILITY

TIMOSHENKO KOLONU OLARAKMODELLENEN TEK KATLI ÇERÇEVELERİN ZEMİN FLEKSİBİLİTESİ DİKKATE ALINARAK SERBEST TİTREŞİMİ

Pages
75–86
Publication Date
2006-09-15
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In this study, free vibration of single storey frames modeled as elastically supported Timoshenko column is studied including rotatory inertia of the columns and natural frequencies are obtained for different spring coefficients.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:One of the assumptions mostly used in dynamic analysis of frames is writing the equation of motion according to concentrated mass at the storey height and modeling the columns as stiffness element.
📊
Key Findings & Data:The other one is that the model of the frame is fixed supported.
💡
Conclusion & Impact:In this study, free vibration of single storey frames modeled as elastically supported Timoshenko column is studied including rotatory inertia of the columns and natural frequencies are obtained for different spring coefficients.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Elastik mesnet · Serbest titreşim · Tek katlı çerçeve

Abstract

One of the assumptions mostly used in dynamic analysis of frames is writing the equation of motion according to concentrated mass at the storey height and modeling the columns as stiffness element. The other one is that the model of the frame is fixed supported. However, columns, in fact, have distributed mass and stiffness; and in practice, column bases of frames may usually rotate and translate a little due to elastic behavior of soil during dynamic loading. In this case, elastic support behavior can be modeled using elastic springs against translation and rotation at the column bases of frames. In this study, free vibration of single storey frames modeled as elastically supported Timoshenko column is studied including rotatory inertia of the columns and natural frequencies are obtained for different spring coefficients.

Özet

Çerçevelerin dinamik analizinde sıkça kullanılan kabullerden birisi hareket denklemini kat hizasında topaklanmış kütleye göre yazmak ve kolonları rijitlik elemanı olarak modellemektir. Ancak gerçekte, kolonlar yayılı kütleye ve rijitliğe sahiptir ve çerçevelerin zeminle bağlantı noktaları, pratikte, dinamik yük sırasında zeminin elastik davranışına bağlı olarak bir miktar dönebilmekte ve ötelenebilmektedir. Bu durumda, çerçevelerin mesnetlerinde dönmeye ve ötelenmeye karşı elastik yaylar kullanılarak, elastik mesnet davranışı modellenebilir. Bu çalışmada, elastik mesnetli Timoshenko kolonu olarak modellenen tek katlı çerçevelerin serbest titreşimi kolonların dönme ataleti de dikkate alınarak incelenmiş ve farklı yay sabitleri için doğal frekanslar elde edilmiştir.

🔖

Cite This Article

Demirdağ, O., Çatal, H. H. (2006). FREE VIBRATION OF SINGLE STOREY FRAMES MODELED AS TIMOSHENKO COLUMN INCLUDING SOIL FLEXIBILITY. Journal of Scientific Reports-A, Issue: 011, 75–86. https://ajindex.com/articles/1512397

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (9)

  1. Michaltsos, G.Th. and Ermopoulos, J.Ch., “Dynamic response of column bases”, Engineering Structures, 23: 58-71 (2001).
  2. Glabisz, W., “Vibration and stability of a beam with elastic supports and concentrated masses under conservative and nonconservative forces”, Computers & Structures, 70: 305-313 (1999).
  3. Güler, K., “Effects of soil flexibility on free vibrations of tower-like structures”, Proceedings of the I. Symposium on Mathematical & Computational Applications, Manisa, 67-72 (1996).
  4. Demirdağ, O., Obtaining Nonlinear response Spectrum of Semi-Rigid Supported Frames, Ph. D. Thesis, Dokuz Eylul University Graduate School of Natural and Applied Sciences, (2005).
  5. Rodriguez, M.E., and Montes, R., “Seismic response and damage analysis of buildings supported on flexible soils”, Earthquake Engineering and Structural Dynamics, 29: 647-665 (2000).
  6. Bhattachaya, K., and Dutta, S.C., “Assessing lateral period of building frames incorporating soil-flexibility”, Journal of Sound and Vibration, 269: 795-821 (2004).
  7. Hjelmstad, K.D. “Dynamic stability of structural systems subjected to base excitation”,Engineering Structures, 20: 425-432 (1998).
  8. Rogers, G.L., “Dynamics of Framed Structures”, John Wiley & Sons, New York, 202-208 (1959).
  9. Low, K.H., “A comprehensive approach for the eigenproblem of beams with arbitraryboundary Conditions”, Computers & Structures, 39: 671-678 (1991).