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Effect of Geometry over the Fundamental Period of Vibration

S. G. Joshi*, Naveen Kwatra**

*Department of Civil Engineering, Vishwakarma Institute of Information Technology, Pune, India.

**Department of Civil Engineering, Thapar University, Patiala, Punjab, India.

Periodicity:March - May'2019
DOI : https://doi.org/10.26634/jste.8.1.15440

Abstract

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.

Keywords

Genetic Programming, Fundamental Period of Vibration, Stodola Method, Data Driven Tools

How to Cite this Article?

Joshi, S. G., & Kwatra, N. (2019). Effect of Geometry over the Fundamental Period of Vibration, i-manager's Journal on Structural Engineering, 8(1), 29-38. https://doi.org/10.26634/jste.8.1.15440

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