Nonlinear dynamic analysis based on experimental data of RC telecommunication towers subjected to wind loading

Marcelo A. Silva and Reyolando M. L. R. F. Brasil

Mathematical Problems in Engineering, 2006, vol. 2006, 1-10

Abstract:

The goal of this paper is to propose a nonlinear dynamic model based on experimental data and NBR-6123-87 to accomplish a nonlinear dynamic analysis of slender structures subjected to wind loading. At first we compute the static answer given by the mean wind speed. In this part of the problem we consider the concept of effective stiffness to represent the physical nonlinearity of material and a P -Delta method to represent the geometrical nonlinearity. Considering the final stiffness obtained in that P -Delta method, we compute the dynamic answer given by the floating wind speed, according to the discrete dynamic model given by NBR-6123-87. A 40 m RC telecommunication tower was analyzed, and the results obtained were compared with those given by linear static and dynamic models.

Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:046815

DOI: 10.1155/MPE/2006/46815

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