Bridges With rolled sections
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ArcelorMittal Europe – Long Products Sections and Merchant Bars With rolled sections

Ravine Petit-Étang, Réunion Island Advanced Solutions for Rolled Beams in Bridge Construction

1. Bridges with Rolled Sections Footbridge at Bettembourg, Luxembourg – Single span bridge with a span of 37.5 m and a precambering radius of 150 m.

2. Steel and Composite Bridges The planning and construction of bridges has continually exercised a strong influence on the development of the construction industry. Numerous iron and steel bridges are milestones in this development. Some of these constructions have brought worldwide recognition to their creators, whilst others to this day bear silent witness to their achievement. Nowadays, long span suspension bridges, cablestayed bridges, truss girder and composite bridges figure among the high points of bridge construction. In addition to the spectacular constructions, there are also...

Road bridge over the A16 motorway, France

3. ArcelorMittal Commercial Sections Rolling of a HISTAR® beam in the rolling mill of Differdange, Luxembourg ArcelorMittal Commercial Sections, one of the 5 business units of ArcelorMittal Europe Long Products, with plants in Spain, Poland, Czech Republic, Romania and Luxembourg, is the largest European manufacturer of hot-rolled sections and has a wealth of experience on a world-wide scale in the production and use of these products. ArcelorMittal Commercial Sections rolls I-beams, channels, angles and sheet piles. The product range covers all sizes in the European standard series and a...

Roadbridge in Differdange, Luxembourg – Bridge with a strong bending over the weak axis (see erection of two main girders on page 9). There are numerous partners involved when planning the construction of a new bridge. These include: • the decision-making bodies, • the residents affected by the construction, • the bridge owner; the architects and the engineers commissioned by him. These partners all contribute their own particular experience and ideas to the planning of a bridge. Footbridge over the Haken in Hamburg, Germany – Slender bridge with 4 spans of 25 m. This brochure outlines how...

Advantages of steel and composite bridges Experience shows again and again that, in comparison with other solutions, steel bridges and composite bridges offer significant benefits: • they are economical, from the point of view of construction and operation, in addition to being well suited for easy, environmentally friendly, demolition and recycling; • they offer numerous possibilities in terms of architectural design; • they result in shorter construction times; • they are also suited to restricted construction depths; • they enable the approach ramps to be shortened, resulting in cost...

4. Design and Appearance Footbridge in Saint-Quentin-en-Yvelines, France Sophistically designed cable-stayed bridge.

Road bridge in Calais, France - The abutments, bearing piles, load bearing structure, facing plates and guard rails form a harmonised enrity plates which lends to the aesthetic quality of the construction work. With bridges, as with any construction project, the choice of construction materials is influenced or even decided on during the preliminary project phase. It is therefore essential at this stage to take into account the possibilities offered by the use of rolled sections, in order to reap the full benefits of construction using this method. Experience shows that the subsequent...

Rolled sections have a simple linear form and feature even surfaces. They lend a clean and precise form to the structure, which is enhanced by the fine aesthetic nuances of the different surfaces. Stiffeners, which are often seen as disruptive to the aesthetic harmony of a work, are in general not required due to the excellent static properties of these rolled sections. Bridges constructed using rolled sections are distinguished by their lightness. As the ratio of span to apparent deck depth is high, the bridges have a slender profile and the resulting impression of transparency plays a...

Composite bridge with concrete crossbeams at Bentwisch, Germany – Design combining steel and colour. The characteristics of rolled sections offers great flexibility, which opens up numerous possibilities with respect to spans, slenderness, choice of line and reduced dead weight of the load bearing structure. The load bearing structure and other bridge parts should work in harmony. On account of their form and the visual quality of their surface, steel sections harmonise perfectly with guard rails, safety barriers, acoustic screens and face plates. The visual impact of a construction work is...

Road bridge over the A16 motorway, France Composite deck with two main girders in high strength steel S460M. Cross section Composite deck construction consists of steel girders which support a reinforced concrete slab. Composite action is achieved by connecting both materials by shear studs. Transverse bracing over supports provides lateral restraint. Composite deck construction is recommended wherever construction depth is not, or only slightly, restricted. Feasible spans for road bridges range up to about 40 m for simply supported spans and up to about 45 m for continuous spans. For a...

Bridge link with two spans of 23.9m to La Sarre, Luxembourg – The composite bridge is a twin-girder bridge with box sections of two longitudinally welded rolled beams. prefabricated reinforced concrete slab HL 1100 R S 420 M half cross-section over support half cross-section over pier half cross-section within span half cross-section within span Example of twin girder arrangement (cross section of A16 overbridge) Example of a 6 girder arrangement (cross section of roadbridge, by-pass for the town of Luxembourg) Bridge link to La Sarre, Luxembourg - The large cantilevers have been designed...

Gosnat bridge in Vitry, France Statical system of main girders Girders of single span bridges are simply supported on the abutments. Multiple span bridges are designed either as successive simply supported or as continuous structures. Continuous girders are statically better suited: bending moments are lower and deflections are smaller. In addition they offer a major constructional advantage: the number of bearings and expansion joints, which cause high costs by the need for regular maintenance, is reduced. Continuity Depending on the overall bridge length and transport conditions the beams...