{"id":9157,"date":"2025-09-20T11:39:24","date_gmt":"2025-09-20T09:39:24","guid":{"rendered":"https:\/\/pontedimessina.it\/glossario\/"},"modified":"2025-10-06T22:28:08","modified_gmt":"2025-10-06T20:28:08","slug":"glossary","status":"publish","type":"page","link":"https:\/\/pontedimessina.it\/en\/glossary\/","title":{"rendered":"Glossary"},"content":{"rendered":"

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Messina Bridge<\/h4>\n

Technical Terms<\/strong><\/h2>\n

A small guide for visitors and the curious through the many technical and design terms related to the project. From engineering definitions to acronyms used in official documents, each entry clarifies key concepts about structure, safety, environment, and management. An agile tool for navigating a project of historical significance, combining innovation, sustainability, and territorial development.
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HIGHLIGHTED<\/h2>

Messina Bridge<\/p>

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EVIDENCE<\/h6>
Main Span<\/h5>This is the suspended section connecting the two shores of the Strait. In the Messina Bridge project, it reaches approximately 3,300 meters, setting a world record for length. The span must guarantee stability and safety even in the presence of strong winds, intense traffic, and seismic stresses, integrating high-performance materials and vibration damping systems.
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EVIDENCE<\/h6>
Towers<\/h5>Two steel pylons over 380 meters high support the main cables. Designed to withstand extreme events, they house stairs, elevators, and sophisticated instruments for the continuous monitoring of the structure, ensuring the bridge’s efficiency and durability over time.
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EVIDENCE<\/h6>
Foundations<\/h5>Underground structures supporting the towers and anchorages. Made with special concrete, they are designed to withstand high pressures and the seismic effects typical of the Strait area.<\/span><\/div>
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EVIDENCE<\/h6>
Deck<\/h5>This is the platform housing the six road lanes and the two railway tracks. The deck is designed to combine lightness and robustness, with an aerodynamic section that reduces wind pressure and improves driving and railway transit comfort.<\/span><\/div>
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EVIDENCE<\/h6>
Main Cables<\/h5>Composed of tens of thousands of ultra-high-strength steel wires, the cables, with a diameter of 1.20 m, support the deck, distributing its weight to the towers and anchorages. Their tension is regulated with extreme precision, and a sensor system constantly verifies their structural efficiency.<\/span><\/div>
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EVIDENCE<\/h6>
Suspenders<\/h5>Vertical steel elements connecting the deck to the main cables. They uniformly distribute the weight of the bridge and traffic, keeping the platform stable. Their geometry, designed to reduce vibrations, contributes to the safety and comfort of those crossing the bridge.<\/span><\/div>
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Tie-downs \/ Stay Cables<\/h5>Secondary cables stabilizing specific portions of the structure. They serve to balance tensions and oscillations, increasing the rigidity of the overall system.<\/span><\/div>
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EVIDENCE<\/h6>
Anchorages<\/h5>The two anchorages located on the Calabrian and Sicilian shores are enormous reinforced concrete blocks, placed underground, which secure the cable ends. Their function is to transfer the forces generated by the weight and stresses of the bridge to the ground, ensuring the stability of the entire system.<\/span><\/div>
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Roadways<\/h5><\/p>\n

The six lanes intended for road traffic, three for each direction. They are designed with porous materials and high-visibility signage to ensure comfort and safety in all weather conditions.<\/span><\/p>\n

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Railway Tracks<\/h5><\/p>\n

Two railway lines integrated into the deck, allowing the transit of high-capacity trains. Their presence makes the bridge a multimodal link, fostering the development of sustainable transport between Calabria and Sicily.<\/span><\/p>\n

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Aerodynamic Dampers<\/h5>Devices installed on cables and the deck to dampen oscillations caused by wind and traffic. They protect the structure and improve the lifespan of metal elements.<\/span><\/div>
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Seismic Dampers<\/h5><\/p>\n

Devices installed at strategic points of the structure to absorb and dissipate energy generated by potential earthquakes. They help protect the deck, towers, and anchorages, keeping the bridge safe even in the event of significant seismic activity.<\/span><\/p>\n

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Expansion Joints<\/h5>Components that allow the deck to expand or contract with temperature variations, preventing deformations or damage to the lanes and tracks.<\/span><\/div>
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Wind Barriers<\/h5>Transparent or metal panels positioned along the edges of the deck. They limit the wind’s action on vehicles, ensuring safety during transit even in unfavorable weather conditions.<\/span><\/div>
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Safety Barriers<\/h5><\/p>\n

Protective elements placed at the sides of the roadways, designed to contain potential impacts and safeguard passengers and infrastructure. They are made with resistant materials and shapes that reduce visual impact.<\/span><\/p>\n

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Monitoring and Surveillance Systems<\/h5>Integrated technologies that constantly monitor vibrations, temperature, cable tension, and traffic. They enable timely interventions in case of anomalies and support preventive maintenance.<\/span><\/div>
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Architectural Lighting<\/h5><\/p>\n

A system of lights that enhances the bridge’s profile during nighttime hours, improving visibility for users and creating a suggestive scenic effect, in harmony with the Strait’s landscape.<\/span><\/p>\n

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EVIDENCE<\/h6>
Stretto di Messina S.p.A.<\/h5>The State Concessionaire company that manages every phase of the project, from planning to future maintenance. It oversees compliance with regulations, coordinates activities with the relevant ministries, and ensures the bridge becomes a strategic infrastructure for national mobility.<\/span><\/div>
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EVIDENCE<\/h6>
Eurolink<\/h5>An international consortium of companies, led by Webuild since 2013, which, as the General Contractor, is responsible for the executive design and construction of the bridge. It coordinates specialists in civil, environmental, and transport engineering, ensuring the project adheres to timelines, costs, and technical, safety, and environmental standards of a global level.<\/span><\/div>
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EVIDENCE<\/h6>
Environmental Monitoring<\/h5>A set of studies and constant controls on the marine ecosystem, avifauna, and air and water quality. The system ensures that the works are compatible with the protection of the Strait, preserving a unique environment for biodiversity and landscape.<\/span><\/div>
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