Dynamic Response of Slender Vertical Structures Subjected to Thunderstorm Outflows

This study examines the maximum alongwind dynamic response of slender vertical structures subjected to thunderstorms, comparing the induced maximum response with the one induced via synoptic events. Two real structures are considered as case studies: a lighting pole and a telecommunications tower. T...

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Main Authors: Luca Roncallo, Matteo Gimondo, Federica Tubino
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/20/11440
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author Luca Roncallo
Matteo Gimondo
Federica Tubino
author_facet Luca Roncallo
Matteo Gimondo
Federica Tubino
author_sort Luca Roncallo
collection DOAJ
description This study examines the maximum alongwind dynamic response of slender vertical structures subjected to thunderstorms, comparing the induced maximum response with the one induced via synoptic events. Two real structures are considered as case studies: a lighting pole and a telecommunications tower. The comparison between thunderstorm- and synoptic-induced dynamic responses is performed through a critical analysis of three ratios characterizing the difference between the two phenomena: the reference wind speed, the mean wind profile, and the gust response factor. The comparison shows that the definition of the reference wind speed and the height of the nose tip of the thunderstorm mean wind profile are crucial for the maximum response, as well as for the dependence of the turbulence intensity on the roughness length. The results show that thunderstorms provide the design loading condition in most cases.
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spelling doaj.art-a9b2d5e24841456e8cfe905dd0d194532023-11-19T15:32:13ZengMDPI AGApplied Sciences2076-34172023-10-0113201144010.3390/app132011440Dynamic Response of Slender Vertical Structures Subjected to Thunderstorm OutflowsLuca Roncallo0Matteo Gimondo1Federica Tubino2Department of Civil, Chemical and Environmental Engineering (DICCA), Polytechnic School, University of Genoa, Via Montallegro 1, 16145 Genoa, ItalyDepartment of Civil, Chemical and Environmental Engineering (DICCA), Polytechnic School, University of Genoa, Via Montallegro 1, 16145 Genoa, ItalyDepartment of Civil, Chemical and Environmental Engineering (DICCA), Polytechnic School, University of Genoa, Via Montallegro 1, 16145 Genoa, ItalyThis study examines the maximum alongwind dynamic response of slender vertical structures subjected to thunderstorms, comparing the induced maximum response with the one induced via synoptic events. Two real structures are considered as case studies: a lighting pole and a telecommunications tower. The comparison between thunderstorm- and synoptic-induced dynamic responses is performed through a critical analysis of three ratios characterizing the difference between the two phenomena: the reference wind speed, the mean wind profile, and the gust response factor. The comparison shows that the definition of the reference wind speed and the height of the nose tip of the thunderstorm mean wind profile are crucial for the maximum response, as well as for the dependence of the turbulence intensity on the roughness length. The results show that thunderstorms provide the design loading condition in most cases.https://www.mdpi.com/2076-3417/13/20/11440thunderstorm outflowsextra-tropical cyclonesgust response factorvertical slender structureswind engineering
spellingShingle Luca Roncallo
Matteo Gimondo
Federica Tubino
Dynamic Response of Slender Vertical Structures Subjected to Thunderstorm Outflows
Applied Sciences
thunderstorm outflows
extra-tropical cyclones
gust response factor
vertical slender structures
wind engineering
title Dynamic Response of Slender Vertical Structures Subjected to Thunderstorm Outflows
title_full Dynamic Response of Slender Vertical Structures Subjected to Thunderstorm Outflows
title_fullStr Dynamic Response of Slender Vertical Structures Subjected to Thunderstorm Outflows
title_full_unstemmed Dynamic Response of Slender Vertical Structures Subjected to Thunderstorm Outflows
title_short Dynamic Response of Slender Vertical Structures Subjected to Thunderstorm Outflows
title_sort dynamic response of slender vertical structures subjected to thunderstorm outflows
topic thunderstorm outflows
extra-tropical cyclones
gust response factor
vertical slender structures
wind engineering
url https://www.mdpi.com/2076-3417/13/20/11440
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