EFFECT OF GEOMETRY OVER THE FUNDAMENTAL PERIOD OF VIBRATION

Two techniques are employed to study the effect of geometry of the building over the fundamental period of vibration. Fundamental period is determined using Stodola method for eighty reinforced concrete buildings of different configurations and a linear relationship is observed between the period an...

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Bibliographic Details
Published inI-Manager's Journal on Structural Engineering Vol. 8; no. 1; p. 28
Main Authors JOSHI, S. G., NAVEEN, KWATRA
Format Journal Article
LanguageEnglish
Published Nagercoil iManager Publications 01.03.2019
Subjects
Aspect ratio
Building codes
Concrete construction
Empirical equations
Genetic algorithms
Mathematical analysis
Reinforced concrete
Vibration
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Summary:Two techniques are employed to study the effect of geometry of the building over the fundamental period of vibration. Fundamental period is determined using Stodola method for eighty reinforced concrete buildings of different configurations and a linear relationship is observed between the period and the height of the building. The relation between, constant of proportionality and aspect ratio of the building, is observed to be nonlinear. A data driven technique in the form of Genetic Programming (GP) is used to obtain the equations of the fundamental period and a linear relationship is observed between the period value and the height of the building along shorter direction of building. It is observed that GP technique gives the equations similar to those suggested by other researchers and different codes. It is also noticed that up to 40 m height of the building the equation given is exactly similar to the one recommended by many building codes. Empirical equations are suggested to determine the fundamental period of vibration using GP technique.
ISSN:2278-7887
2320-2343
DOI:10.26634/jste.8.1.15440