Analytical determination of aerodynamic resistance of the skeletal telecommunication towers

• Autorzy: Szafran J.

Warianty tytułu

PL

Analityczne określenie oporu aerodynamicznego kratowych wież telekomunikacyjnych

• Języki publikacji: EN PL

Abstrakty

EN

Computational determination of aerodynamic resistance for high truss structures like telecommunications towers is the subject of this study. Normalized procedures were presented with an example of an existing structure concerning the total wind coefficient. The results of calculations along with their broad elaboration and interpretation have been presented. Analyses and calculations were conducted for a tower of height equal to 84 metres and of a triangular cross section. The structure is characterized by round full rods as the legs of the tower and hot-rolled angle bars as the bracing. Two computational approaches were applied providing the results for each of them. The achieved results allow for stating that selection of a computational standard procedure should be adequate to an analysed structure and its characteristic features. The information included in the article is particularly useful in case of the determination of carrying capacity of existing tower structures on the basis of Eurocode standards.

Słowa kluczowe

EN

aerodynamic resistance; total wind force coefficient; telecommunication towers; linear ancillary item

PL

opór aerodynamiczny; całkowity współczynnik oddziaływania wiatru; wieże telekomunikacyjne; liniowy element pomocniczy

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Structure and Environment
• Rocznik: 2015
• Tom: Vol. 7, no. 1
• Strony: 5--14
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr., wzory

Twórcy

autor

Szafran J.

• Technical University of Łódź

Bibliografia

• [1] Eurocode 3: Design of steel structures. Towers, masts and chimneys. Tower and masts. European Committee for Standardization, Brussels, 2008.
• [2] Rykaluk K.: Steel structures. Chimneys, tower, masts. Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław 2004.
• [3] Smith B.W.: Communication structures. Thomas Telford Publishing, London 2007.
• [4] PN-B-03204:2002: Steel structures. Towers and masts. Design and Execution. Polski Komitet Normalizacyjny, Warszawa 2002.
• [5] Eurocode 1: Actions on structures. General actions. Part 1-4: Wind actions. European Committee for Standardization, Brussels, 2004.
• [6] Smith B.W.: Comparison of the Draft Code of Practice for lattice Towers with wind load measurements on a complete model lattice tower. Building Research Establishment, 1985.
• [7] Nielsen M.G.: Wind tunnel tests. Meeting of IASS Working Group 4: Tower and masts. Oslo 2001