The Impact of nonlinear soil properties on the design of transmission line towers

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Abstract

The article analyzes the impact of soil deformation characteristics on the design of transmission line tower structures. Methods for accounting for the compliance of the soil foundation in the “structure–foundation–soil” system model, implemented in the Plaxis software, are reviewed. The results of a comparative analysis of forces in structural elements under various soil deformation modulus values are presented. The study highlights the importance of nonlinear soil properties in improving calculation accuracy and preventing progressive collapse of towers. The necessity of further development of methodologies that consider the interaction between structures and soil foundations under extreme loads is emphasized.

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About the authors

V. S. Vasilev

Saint-Petersburg State University of Architecture and Civil Engineering

Author for correspondence.
Email: valera-vasilev-99@mail.ru

Postgraduate Student, Engineer

Russian Federation, 4, 2nd Krasnoarmeyskaya Street, Saint Petersburg, 190005

D. I. Filyushkin

Saint-Petersburg State University of Architecture and Civil Engineering

Email: tzuktzuktzu.avia2011@yandex.ru

Master, Engineer

Russian Federation, 4, 2nd Krasnoarmeyskaya Street, Saint Petersburg, 190005

References

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  2. Senkin N.A. Consideration of progressive collapse in the design of overhead transmission line supports. Vestnik grazhdanskikh inzhenerov. 2022. No. 4 (93), pp. 37–46. (In Russian). EDN: MXCQXB. https://doi.org/10.23968/1999-5571-2022-19-4-37-46
  3. Senkin N.A. Progressive collapse and restoration of overhead power transmission line structures. Izvestiya vysshix uchebnyx zavedenij. Stroitel`stvo. 2023. No. 10 (778), pp. 5–20. (In Russian). EDN: VIILKZ. https://doi.org/10.32683/0536-1052-2023-778-10-5-20
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  5. Senkin N.A. Interaction of structural elements in the linear circuit of an overhead power transmission line when a support falls. Stroitel’naya mexanika i raschet sooruzhenij. 2024. No. 6 (317), pp. 27–34. (In Russian). EDN: ITCRDE. https://doi.org/10.37538/0039-2383.2024.6.27.34
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Supplementary files

Supplementary Files
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1. JATS XML
2. Рис. 1. Схема промежуточной опоры П330Н-1+6.0 (слева); схема подставки П1.2-6.0 для опоры П330н-1+6.0 (справа)

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3. Fig. 2. FPS6-4 foundation for the P330n-1+6.0 support

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4. Fig. 3. Calculation scheme of the «structure–foundation–subgrade» system in the Plaxis software

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5. Fig. 4. Forces (kN) in the support stand elements depending on the load application cycle

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6. Fig. 5. Forces (kN) in the support stand elements depending on the adopted soil deformation modulus in calculation schemes with Hardening Soil (HS) and Mohr–Coulomb (MC) soil models

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