Mathematical modeling of synthesized anemograms for the aerodynamic structural calculation

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The accelerated industrialization of construction in recent decades has led to the creation of new types of lightweight and flexible structures with increased sensitivity to wind loads. This has necessitated the development of more accurate calculation methods that consider the nature of wind exposure in order to improve the reliability and durability of structures. Current Russian regulations decompose wind load into average and pulsation components. The latter is described as quasi-static, which means that this approach does not account for possible dynamic effects when wind pulsation frequencies approach the natural frequencies of structures in dynamic calculations. In this regard, modeling of calculated anemograms, which allow taking into account the features and frequency-dynamic characteristics of the local wind regime, as well as the possible occurrence of resonant phenomena in the projected structures, becomes a necessary condition for ensuring the safety of construction facilities. This article proposes a method for mathematical modeling of synthesized anemograms, implemented as a computer application program. The generated anemograms can be used for further dynamic calculation of structures in specialized software and computing systems.

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Sobre autores

P. Khazov

Nizhny Novgorod State University of Architecture and Civil Engineering

Autor responsável pela correspondência
Email: khazov.nngasu@mail.ru

Candidate of Sciences (Engineering)

Rússia, 65, Il’inskaya Street, Nizhniy Novgorod, 603950

A. Sitnikova

Nizhny Novgorod State University of Architecture and Civil Engineering

Email: sitanngd@gmail.com

Postgraduate Student

Rússia, 65, Il’inskaya Street, Nizhniy Novgorod, 603950

A. Satanov

Mechanical Engineering Research Institute of the RAS – Branch of “Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences”

Email: andrewsatanov@gmail.com

Researcher

Rússia, 85, Belinsky Street, Nizhniy Novgorod, 603024

A. Pomazov

Nizhny Novgorod State University of Architecture and Civil Engineering

Email: pomazov.a.p@yandex.ru

Postgraduate Student

Rússia, 65, Il’inskaya Street, Nizhniy Novgorod, 603950

Bibliografia

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  17. Computer Program. No. 2024689881 Generator raschetnyh anemogramm. [The generator of calculated anemograms] / Khazov P.A., Satanov A.A., Pomazov A.P., Pomazov S.P., Simonov A.V. Declared 06.12.2024. Pablished 13.12.2024. (In Russian). EDN: XKKGGM

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2. Fig. 1. Recordings of vibrations of the Ostankino TV tower at levels of 503 (a) и 385 (b) m [12]

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3. Fig. 2. Dependence of the dynamic coefficient μ on the ratio of the frequency of the driving force θ and the frequency of natural oscillations of the structure

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4. Fig. 3. Volgograd Bridge Vibrations, May 2010

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5. Fig. 4. General view of the synthesized calculated anemogram [18]

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6. Fig. 5. Block diagram of the program «The generator of calculated anemograms» [18]

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