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Vitruvio towers
Piero Berardi
Overhead Lines Unit
Engineering Department
Terna Rete Italia
August 26,2015
Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree 1
International Workshop
Innovative Electrical Networks for a Sustainable
Development in Low Carbon Scenarios
International Workshop
Innovative Electrical Networks for a Sustainable
Development in Low Carbon Scenarios
August 26-28, 2015 Stresa - Italy
2Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
Latticed steel towers
Monopoles
Foster towers
Dutton “Germoglio” towers
OHL towers evolution
“Vitruvio” towers
1900
2013
3Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
OHL towers design criteria
“Vitruvio” towers
� Technical requirements (electrical and mechanical)
� National regulation / International standards
� Qualification / construction
� Transportation / installation
� Environmental impact
� Aesthetic
� Reduced soil utilization
� OHL life cycle
� Cost
4Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“L’uomo Vitruviano: homo ad quadratum et ad circulum”
“Vitruvio” towers
5Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. Main features
� Geometry
� Connections
� Materials high strength steels
� External cover
6Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. Bolt Vs. weld: scale prototype
Bolted connections Welded connections
7Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. High strength steels
Reference standards
� CEI 11-4
� CENELEC EN 50341
� EN 1993-1-1
� ASCE 10-97
S355JR S420N
S460N
8Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. Structural design
External cover
9Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. Structural design
Suspension tower Tension tower FEM models
10Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. Full scale test
Insulating cross arms suspension prototype
� Type tests during production
� Deflection check
� Global Resistance + strain gauges verifications
load condition of CEI 11-4 applied according to IEC 60652
11Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. Full scale test
12Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. Full scale test
Load test with partial cover
13Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree
“Vitruvio” towers
Vitruvio towers. 380kV double circuit OHL Villanova-Gissi
Vitruvio towers
Piero Berardi
Overhead Lines Unit
Engineering Department
Terna Rete Italia
August 26,2015
Direzione Ingegneria | Sviluppo Tecnologie – Ingegneria Linee Aeree 14
International Workshop
Innovative Electrical Networks for a Sustainable
Development in Low Carbon Scenarios
International Workshop
Innovative Electrical Networks for a Sustainable
Development in Low Carbon Scenarios
August 26-28, 2015 Stresa - Italy
