Nonlinearity of Conductor Behavior in the Context of Loads on Transmission Towers

The article presents the issue of determining the effects of conductors on the supporting structures of power lines using two different methods of applying partial safety factors (PSF). An assessment of the nonlinearity and disproportionality in the relationship between the conductor load and the te...

Full description

Saved in:
Bibliographic Details
Main Authors: WANDZIK Grzegorz, KOWALCZYK Grzegorz
Format: Article
Language:English
Published: Sciendo 2024-12-01
Series:Architecture, Civil Engineering, Environment
Subjects:
Online Access:https://doi.org/10.2478/acee-2024-0034
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832570352202416128
author WANDZIK Grzegorz
KOWALCZYK Grzegorz
author_facet WANDZIK Grzegorz
KOWALCZYK Grzegorz
author_sort WANDZIK Grzegorz
collection DOAJ
description The article presents the issue of determining the effects of conductors on the supporting structures of power lines using two different methods of applying partial safety factors (PSF). An assessment of the nonlinearity and disproportionality in the relationship between the conductor load and the tension force was carried out. The discussion identifies the source of differences in the approaches and assesses the impact of two primary factors: the curvature of the relationship between load and tension force, and the initial prestressing of the cable, which results in the displacement of the graph relative to the origin of the coordinate system. The investigation utilizes measures of nonlinearity to facilitate its assessment. A sensitivity analysis was performed to examine the difference between applying PSFs to actions and their effects. A series of numerical calculations, considering various spans, initial tensions, and load values, demonstrated the scale of the reduction in the design values of forces when safety factors are applied more naturally to the actions, not to their effects.
format Article
id doaj-art-471d7f459de4491f8350280dee6216fe
institution Kabale University
issn 2720-6947
language English
publishDate 2024-12-01
publisher Sciendo
record_format Article
series Architecture, Civil Engineering, Environment
spelling doaj-art-471d7f459de4491f8350280dee6216fe2025-02-02T15:47:21ZengSciendoArchitecture, Civil Engineering, Environment2720-69472024-12-0117414715910.2478/acee-2024-0034Nonlinearity of Conductor Behavior in the Context of Loads on Transmission TowersWANDZIK Grzegorz0KOWALCZYK Grzegorz1Assoc. Prof. PhD, DSc; Department of Structural Engineering, Faculty of Civil Engineering, Silesian University of Technology, Gliwice, PolandMSc; Arinet sp. z o.o., Gliwice, PolandThe article presents the issue of determining the effects of conductors on the supporting structures of power lines using two different methods of applying partial safety factors (PSF). An assessment of the nonlinearity and disproportionality in the relationship between the conductor load and the tension force was carried out. The discussion identifies the source of differences in the approaches and assesses the impact of two primary factors: the curvature of the relationship between load and tension force, and the initial prestressing of the cable, which results in the displacement of the graph relative to the origin of the coordinate system. The investigation utilizes measures of nonlinearity to facilitate its assessment. A sensitivity analysis was performed to examine the difference between applying PSFs to actions and their effects. A series of numerical calculations, considering various spans, initial tensions, and load values, demonstrated the scale of the reduction in the design values of forces when safety factors are applied more naturally to the actions, not to their effects.https://doi.org/10.2478/acee-2024-0034cable structureshigh-voltage towersnonlinear responsepartial safety factorssensitivity analysisstructure reliability
spellingShingle WANDZIK Grzegorz
KOWALCZYK Grzegorz
Nonlinearity of Conductor Behavior in the Context of Loads on Transmission Towers
Architecture, Civil Engineering, Environment
cable structures
high-voltage towers
nonlinear response
partial safety factors
sensitivity analysis
structure reliability
title Nonlinearity of Conductor Behavior in the Context of Loads on Transmission Towers
title_full Nonlinearity of Conductor Behavior in the Context of Loads on Transmission Towers
title_fullStr Nonlinearity of Conductor Behavior in the Context of Loads on Transmission Towers
title_full_unstemmed Nonlinearity of Conductor Behavior in the Context of Loads on Transmission Towers
title_short Nonlinearity of Conductor Behavior in the Context of Loads on Transmission Towers
title_sort nonlinearity of conductor behavior in the context of loads on transmission towers
topic cable structures
high-voltage towers
nonlinear response
partial safety factors
sensitivity analysis
structure reliability
url https://doi.org/10.2478/acee-2024-0034
work_keys_str_mv AT wandzikgrzegorz nonlinearityofconductorbehaviorinthecontextofloadsontransmissiontowers
AT kowalczykgrzegorz nonlinearityofconductorbehaviorinthecontextofloadsontransmissiontowers