Vibration of floors supported by beams (part 1

Single span floors)

L. Kollar, B. Kulcsár

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Long-span (reinforced concrete, steel, composite, timber and timber-concrete) floors may show considerable vibration, which may disturb the occupants of such structures. The floor is often supported by columns and beams, which may reduce the natural frequency even in the range of human excitation. In this paper a model and simple explicit expressions are developed for the calculation of the natural frequency of plates, which take into account the deflections of the supporting beams. The floor is modelled as an orthotropic plate, while the effect of the supporting beams is taken into account either with Föppl's expression or by the Rayleigh-Ritz method. The results are applied to timber and timber-concrete floors with various configurations, and the results are verified numerically. The derived expressions can serve either as an independent check of more sophisticated FE calculations or they can be used in the preliminary design stage.

Original languageEnglish
Pages (from-to)34-41
Number of pages8
JournalStructural Engineer
Volume91
Issue number5
Publication statusPublished - May 2013

Fingerprint

Timber
Concrete construction
Natural frequencies
Orthotropic plates
Reinforced concrete
Steel
Composite materials

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Architecture

Cite this

Vibration of floors supported by beams (part 1 : Single span floors). / Kollar, L.; Kulcsár, B.

In: Structural Engineer, Vol. 91, No. 5, 05.2013, p. 34-41.

Research output: Contribution to journalArticle

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