Trapezoidal sections

A highly effective way to brace steel plate structures

Using trapezoidal sections in superstructure bridge design, especially in the orthotropic deck, improves overall bridge economy by enabling structures to be optimized.

Benefits of using trapezoidal sections:

  • Long lengths without welding joints
  • Good accuracy in cross-sectional dimensions and straightness
  • Easy surface treatment, lower costs

Applications:

  • Road bridges
  • Railway bridges
  • Light-traffic bridges
Trapezoidal sections

Availability

Production range

  • Wall thicknesses 4-10 mm, typical 6-8 mm
  • Main dimensions
    • max strip width 820 mm
    • inner corner radius R25 or R15
    • max height 300 mm
  • Lengths from production:
    • roll forming doesn’t limit the length of the profile
    • typical length 10-13,5 m
    • max. length 21 m without welded splice

Steel grades

Standard steel grade S355J2C+N acc. to EN10025-2

Other steel grades according to standards:

  • EN 10025-3, normalised rolled weldable fine grain structural steels
  • EN 10025-4, thermomechanically rolled weldable fine grain structural steels
  • EN 10025-5 Structural steels with improved atmospheric corrosion resistance
  • EN 10149-2, thermomechanically rolled high yield strength steels for cold forming

Other steel grades on request

Order & delivery

To order trapezoidal sections, please contact our sales. Trapezoidal sections are customised for each application and they are manufactured to the desired length.

SSAB applies the General Conditions, ALBIF 2000, for deliveries with the addition that the parties will comply with applicable legislative and regulatory requirements and refrain from participating in any corrupt business practices.

The technical terms of delivery for cold-rolled sections manufactured by SSAB are in accordance with the EN 10162 when applicable. Technical delivery conditions can also be agreed case by case.

Trapezoidal sections are delivered with bundle tags to enable full traceability.

Type 3.1 material certificate will be provided according to the standard EN 10204, Type 3.2 is available on request. DB certificate according to BN 918002-02 is available on request.

Environmental responsibility and sustainability

SSAB develops new products and services in order to improve our customers’ performance in sustainability and overall efficiency.

Life cycle assessment data for SSAB’s products are available in the form of Environmental product declarations (EPDs). Manufacturing chain from raw material to finished product is carefully managed.

SSAB has introduced CE marking for infrastructure products. Declarations of Performance (DoP) indicate the technical characteristics of CE-marked products.

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Customer cases

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Successful HDPE coated pile -project in tight time frame and demanding soil conditions

Turku University Hospital (TYKS) is building a massive new building, named T3 Hospital, on top of existing E18 freeway and a rail road. New building will have total area of 54 000 m2 in eight stories. Total budget for the project is 158 M€.

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RD pile wall in Tallinn Old City Harbour

RD® pile wall in Tallinn Old City Harbour, Estonia

SSAB delivered RD® pile wall to Tallinn Old City Harbour, Estonia. The project was set up in order to build a supporting wall to a new cruise terminal. The solution used was easy to install in demanding conditions while saving time.

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higher strength steel in district heating pipeline core tubes

Helen decreased carbon footprint in Vuosaari power plant by using SSAB’s higher strength steel tubes

LOGSTOR Finland delivered to Helen Vuosaari power plant district heating pipe line that were produced with thinner steel core pipelines made of higher strength steel. This was the first large size project for Helen to use higher strength steel in district heating pipeline. Higher steel grade enables customer to use lower material thickness tubes in steel core of pipelines which not only reduce weight of the pipes during the transportation but also prolongs lifetime of the pipelines. Power plant is benefiting of the longer lifetime compared with traditional solution and at the same time environment aspect with lower carbon footprint are enabled.

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