Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Longitudinal Forces on Transmission Towers due to Non-Symmetric Downburst Ground Wire Loads
Downburst thunderstorms are localized high-intensity wind events that are formed by an intensive downdraft of cold air that impinges on the ground causing high radial wind speeds. Spatial localization of downbursts causes unique oblique load cases on long-span structures such as transmission lines that do not occur during synoptic winds. This loading scenario causes an unsymmetrical wind loading along the spans of the cables, resulting in an unbalanced longitudinal force acting on the transmission tower of interest. This longitudinal force is highly nonlinear; it depends on the material and geometrical properties of the cables. Therefore, a nonlinear analysis should be conducted considering the various possibilities of downburst-cable configurations and the cable material and geometrical properties. This paper focuses on developing a simplified and manual approach to estimate this damaging longitudinal force, which develops in ground wires of transmission lines.
Longitudinal Forces on Transmission Towers due to Non-Symmetric Downburst Ground Wire Loads
Downburst thunderstorms are localized high-intensity wind events that are formed by an intensive downdraft of cold air that impinges on the ground causing high radial wind speeds. Spatial localization of downbursts causes unique oblique load cases on long-span structures such as transmission lines that do not occur during synoptic winds. This loading scenario causes an unsymmetrical wind loading along the spans of the cables, resulting in an unbalanced longitudinal force acting on the transmission tower of interest. This longitudinal force is highly nonlinear; it depends on the material and geometrical properties of the cables. Therefore, a nonlinear analysis should be conducted considering the various possibilities of downburst-cable configurations and the cable material and geometrical properties. This paper focuses on developing a simplified and manual approach to estimate this damaging longitudinal force, which develops in ground wires of transmission lines.
Longitudinal Forces on Transmission Towers due to Non-Symmetric Downburst Ground Wire Loads
Elawady, Amal (Autor:in) / El Damatty, Ashraf (Autor:in)
EMI 2016 conference ; 2016 ; Nashville, Tennessee
Wind Engineering for Natural Hazards ; 133-147
22.09.2018
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Longitudinal force on transmission towers due to non-symmetric downburst conductor loads
| Online Contents | 2016
The Dynamic Effect of Downburst Winds on the Longitudinal Forces Applied to Transmission Towers
| DOAJ | 2019
Behavior of self supported transmission line towers under stationary downburst loading
| Online Contents | 2011
Behavior of self supported transmission line towers under stationary downburst loading
| British Library Online Contents | 2011