{"id":13826,"date":"2026-04-03T09:45:00","date_gmt":"2026-04-03T01:45:00","guid":{"rendered":"https:\/\/www.wedospace.com\/?p=13826"},"modified":"2026-04-03T16:56:44","modified_gmt":"2026-04-03T08:56:44","slug":"how-are-modern-steel-beam-bridges-constructed","status":"publish","type":"post","link":"https:\/\/www.wedospace.com\/fr\/how-are-modern-steel-beam-bridges-constructed\/","title":{"rendered":"Comment sont construits les ponts modernes \u00e0 poutres d'acier ?"},"content":{"rendered":"
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The whole process is led by high-precision processing in the factory, and high-strength structural steel beams are prefabricated in the factory using BIM modeling, with a precision of at least millimeters. At the same time, the site of the construction site is not idle, and the substructure-that is, the reinforced concrete abutments and piers-must be laid at the same time. This is the foundation.<\/p>\n\n\n\n

We will use huge crawler cranes or bridge erecting machines to hoist steel beams to predetermined positions. After the hoisting is in place, they are locked with advanced bolt connection and welding technology. Here I usually stare at torsion shear high-strength bolts and field splicing joints. Bridge decks are laid on the steel beams, and expansion joints, drainage systems and crash barriers are installed to ensure that the structure is stable.<\/p>\n\n\n\n

\"steel<\/figure>\n\n\n\n

<\/span>Factory Finishing And BIM Digital Simulation<\/span><\/h2>\n\n\n\n

Modern bridge construction actually began long before the steel arrived. Cutting steel and welding beams in the controlled environment of the factory is much more stable than in the field.<\/p>\n\n\n\n

Large projects can\u2019t work without BIM (Building Information Modeling). We have to make a \u201cdigital twin\u201d model first, and accurately align the bolt hole position and web thickness of each beam section, and the error must be controlled within a few tenths of a millimeter. You won\u2019t stop work because of rain, and every piece of steel can pass strict stress tests, which is directly related to the bearing capacity of the bridge in the future.<\/p>\n\n\n\n

<\/span>Substructure Foundation And Site Casting<\/span><\/h2>\n\n\n\n

When welding beams in the factory, the substructure is equivalent to the \u201cfoundation system\u201d of the bridge \u201c.<\/p>\n\n\n\n

Abutment: This thing is installed at both ends of the bridge. It not only has to eat the longitudinal and lateral thrust of the whole bridge, but also has to smoothly connect with the road behind it.<\/p>\n\n\n\n

Piers: If it is a multi-span bridge, the middle is all supported by these reinforced concrete piers.<\/p>\n\n\n\n

At the scene, I have been staring at the binding quality of high-strength concrete and steel cage. These components have to withstand the earthquake force and the usual environmental corrosion. If the foundation is unstable, it is useless to make the steel structure on it beautiful.<\/p>\n\n\n\n

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Atelier \u00e0 structure m\u00e9tallique<\/strong><\/strong><\/p>\n\n\n\n

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Les ateliers \u00e0 structure m\u00e9tallique sont polyvalents. La port\u00e9e libre garantit un espace sans obstacle, tandis que les colonnes centrales et interm\u00e9diaires offrent des solutions \u00e9conomiques pour les grandes port\u00e9es.<\/p>\n\n\n\n

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Obtenir un devis<\/a><\/a><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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<\/span>Atelier \u00e0 structure m\u00e9tallique<\/a><\/strong><\/strong><\/span><\/h2>\n<\/div>\n<\/div>
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Pont\/Structure en acier Bridgeipsum<\/strong><\/p>\n\n\n\n

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Les ponts \u00e0 structure en acier utilisent des rapports r\u00e9sistance\/poids \u00e9lev\u00e9s pour atteindre de longues port\u00e9es l\u00e0 o\u00f9 les appuis interm\u00e9diaires sont difficiles.<\/p>\n\n\n\n

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Obtenir un devis<\/a><\/a><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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<\/span>Pont\/acier<\/a><\/span><\/h2>\n<\/div>\n<\/div>
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B\u00e2timents \u00e0 structure m\u00e9tallique<\/strong><\/p>\n\n\n\n

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Les b\u00e2timents \u00e0 structure m\u00e9tallique pr\u00e9sentent des conceptions polyvalentes pour r\u00e9pondre \u00e0 des besoins divers. La port\u00e9e libre offre un espace ouvert, tandis que les colonnes centrales et interm\u00e9diaires augmentent l'\u00e9conomie pour les grandes port\u00e9es. Le syst\u00e8me Multi Gable permet de r\u00e9pondre \u00e0 des largeurs complexes. <\/p>\n\n\n\n

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Obtenir un devis<\/a><\/a><\/div><\/div><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n
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<\/span>B\u00e2timents \u00e0 structure m\u00e9tallique<\/a><\/strong><\/span><\/h2>\n<\/div>\n<\/div>
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