Structural Calculations

    ROKENG designs and checks reinforced concrete, prestressed concrete and steel structures. We deliver clear, traceable calculation notes, backed by numerical models proportionate to what is at stake for each structure.

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    Structural Calculations (illustrative photo)
    Illustrative photo

    What we deliver

    • Load take-down and design of structural elements: slabs, beams, walls, columns and foundations.
    • Verification of reinforced and prestressed concrete structures, including temporary construction stages.
    • Design of steel frames and structures: members, connections and overall stability.
    • Finite element models (beams, shells or solids as required).
    • Structured calculation notes, ready for checking and directly usable by drafting teams.

    Our approach

    1. Review of input data: drawings, programme and loads, geotechnical report, sequencing constraints.
    2. Choice of a calculation model proportionate to the structure: a simple model when it is enough, a detailed one when the stakes require it.
    3. Ultimate and serviceability limit state checks to the Eurocodes and their national annexes.
    4. Consistency checks of the results: orders of magnitude, equilibrium, cross-checks with simplified models.
    5. Calculation note and transfer of reinforcement areas and forces to the drafting teams.

    Typical structures

    • Bridges: slab bridges, beam bridges, bridge decks.
    • Buried structures: box sections, tanks, car parks and underground structures.
    • Buildings and complex structures.
    • Industrial structures and associated civil works.

    Frequently asked questions

    What documents do you need to start a study?

    The drawings of the structure, load assumptions or programme, the geotechnical report if available and the applicable design codes. During our initial review we list any missing data to avoid back-and-forth.

    Do you design to the Eurocodes?

    Yes, we work to the Eurocodes and the national annexes applicable to the project. For international projects, the design code required by the contract is agreed with you at tender stage.

    Can you check an existing calculation note?

    Yes. We can take over an existing note or model, check it independently and document our comments.

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