Determining Dynamic Characteristics Of Reinforced Concrete Minarets And Updating Of Their Finite Element Models Using Environmental Vibration Data

Year 2018, Volume: 13 Issue: 1, 93 - 98, 01.03.2018

Musa Yetkin , Yusuf Calayır Hakan Erkek

Abstract

Structures are exposed to various dynamic effects such as
earthquake, wind and traffic load. It need to be taken various measures for
surviving the structures under dynamic loads. Taking the appropriate measures
depends on the well-known of dynamic behavior of existing structures. This
behavior of the structure can be known through analytical or experimental
methods. In the analytical methods, many acceptance is made in finite element
modeling of the structure and it is considered that the created model
represents its existing case. However, it is rather difficult to fully represent
of the existing structure with the accepted assumptions. In experimental
methods, the dynamic characteristics of the structure (natural frequencies,
mode shapes and damping ratios) are determined for the present case. Using
these dynamic characteristics, the existing analytical model of the structure
can be updated and the evaluation of the structure according to this new model
can be made more realistic. In this study, analytical and experimental analyses
of the minaret of Firat University Engineering Campus Mosque were carried out.
The finite element model has been updated depending on the dynamic
characteristics obtained from the experimental analysis.

Keywords

Dynamic characteristics, Reinforced concrete minaret, Analytical model, Environmental vibration data, updating of finite element model

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