Stay cables reference list
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The new railway linking Bologna to Milan is part of the High Speed Lines network at present under construction in Italy.
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During the October 2000 flood almost all the watercourses in the province of Turin that were tributaries of the Po river underwent exceptional high waters and consequent flooding, which caused enormous economic and environmental damage.
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The existing double railway bridge was too low and too old. The crossing with the Twente canal was too low; the bridge was technically at the end of its lifetime. A unique opportunity to design and build another railway cable-stayed bridge in the Netherlands.
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Although the Paranaíba Bridge was the first cable-stayed bridge to break ground in Brazil
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The “Sea Pallini” cable stayed bridge, crossing the main highway reaching the new airport of Athens...
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High speed train line Milan – Bologna
18 12 2006The new railway linking Bologna to Milan is part of the High Speed Lines network at present under construction in Italy.
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The "Colletta" cable stayed bridge over the Sangone creek
16 07 2005During the October 2000 flood almost all the watercourses in the province of Turin that were tributaries of the Po river underwent exceptional high waters and consequent flooding, which caused enormous economic and environmental damage.
[...]
Arch bridge over the Twente canal
06 07 2005The existing double railway bridge was too low and too old. The crossing with the Twente canal was too low; the bridge was technically at the end of its lifetime. A unique opportunity to design and build another railway cable-stayed bridge in the Netherlands.
[...]
Cable-stayed bridge over the River Paranaíba
04 11 2003Although the Paranaíba Bridge was the first cable-stayed bridge to break ground in Brazil
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Sea Pallini bridge, Athens
02 10 2003The “Sea Pallini” cable stayed bridge, crossing the main highway reaching the new airport of Athens...
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Bridge over the Garigliano River
published: 10 09 2000
To better the traffic on the state highway SS 7, in the stretch between Formia and the Garigliano river
To better the traffic on the state highway SS 7, in the stretch between Formia and the Garigliano river, ANAS - the Italian State Highways Agency - had designed an alternate that, to cross the river, envisioned the construction of a cable-stayed bridge. The new viaduct would be set down in the immediate vicinity of two priceless witnesses to the history of Italian bridges: a suspension bridge (Italy's first) built by the Bourbon King Ferdinand II during the first decades of the XIX century, and a Nielsen-type arch bridge of reinforced concrete, very usual typology during the years right after the last war.
The straight axis cable-stayed bridge has a length of 180 m., with a 30 m. high central pylon on the bridge beam plane and a system of central stays with harp-like design that supports two equal spans of 90 m. The multi-cellular box type cross-section of the bridge beams has width 26.10 m. and height 2.45 m.
The project design includes the assembly of 2 x 35 prefabricated sections with length 2.5 m. and weight 141 tonnes for the standard section, and 145 tonnes for the section with the stay anchor head.
The pylon consists of a base in reinforced concrete with a variable rectangular cross-section up to 5m. from the bridge beam plane, and a top steel part with a vertical development of 25 m.
The stay structure - "TSR15" Tensacciai type - consists of 9 pairs of parallel stays located at a centre distance of 1.7 m. for each span: each one consists of 45 to 55 strands, with a diameter of 15.7 mm. - Fptk 1770 N/mm2, hot galvanised and individually protected in HDPE. The strand is also protected by external HDPE sheath; injection of the sheaths in a mix of cement and covering of the same with white coloured special tape. The fixed anchorages have been positioned in the pylon and the adjustable anchorages in the deck for tensioning operations and final adjustment. The latter operation was performed using n. 4 MT9000KN jakcs at the same time.
Tensacciai "37TSR15" anchorages previously underwent a series of static and fatigue tests, performed at the EMPA Laboratories of Zuerich. The fatigue tests included 2 million cycles, at the upper load equal to 45% of the ultimate strength with a dynamic variation of 200 N/mm2, while the static tests indicated anchor efficiency of more than 95% of ultimate strength, on single tests and after fatigue.
The straight axis cable-stayed bridge has a length of 180 m., with a 30 m. high central pylon on the bridge beam plane and a system of central stays with harp-like design that supports two equal spans of 90 m. The multi-cellular box type cross-section of the bridge beams has width 26.10 m. and height 2.45 m.
The project design includes the assembly of 2 x 35 prefabricated sections with length 2.5 m. and weight 141 tonnes for the standard section, and 145 tonnes for the section with the stay anchor head.
The pylon consists of a base in reinforced concrete with a variable rectangular cross-section up to 5m. from the bridge beam plane, and a top steel part with a vertical development of 25 m.
The stay structure - "TSR15" Tensacciai type - consists of 9 pairs of parallel stays located at a centre distance of 1.7 m. for each span: each one consists of 45 to 55 strands, with a diameter of 15.7 mm. - Fptk 1770 N/mm2, hot galvanised and individually protected in HDPE. The strand is also protected by external HDPE sheath; injection of the sheaths in a mix of cement and covering of the same with white coloured special tape. The fixed anchorages have been positioned in the pylon and the adjustable anchorages in the deck for tensioning operations and final adjustment. The latter operation was performed using n. 4 MT9000KN jakcs at the same time.
Tensacciai "37TSR15" anchorages previously underwent a series of static and fatigue tests, performed at the EMPA Laboratories of Zuerich. The fatigue tests included 2 million cycles, at the upper load equal to 45% of the ultimate strength with a dynamic variation of 200 N/mm2, while the static tests indicated anchor efficiency of more than 95% of ultimate strength, on single tests and after fatigue.
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| Project | : | BRIDGE OVER THE GARIGLIANO RIVER |
| Location | : | Formia - Latina - (Italy) |
| Type | : | Single pylon cable-stayed bridge |
| Total length of the bridge | : | 180 m. |
| Main span | : | 2 x 90 m. |
| Deck width | : | 26.10 m. |
| Deck type | : | Precast segments - concrete multi-light box section |
| Pylon height | : | 30 m. over the deck |
| Stay cables | : | 125 tons |
| No. of stays | : | 36 |
| Longest stay cable | : | 88 m. |
| Max. no. of strands per anchorage | : | 55 - 15.7 mm. dia. |
| Main Client | : | ANAS - Department for the Sarno Roadway System (Italy) |
| Contractor | : | GIUSTINO COSTRUZIONI (Italy) |
| Designer | : | Prof. Ing. M. Mele - Ing. S. Masciocchi (Italy) |
| Period | : | 11/1992 - 07/1994 |
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