DESIGN SOFTWARE

Crawl Beam Design

Coming soon

Design and check underslung monorail beams to EN 1993-6, from the hoist loads through to the bolted connections, with a full calculation report for checking and sign-off.

Aiming to launch by the end of November 2026.

Bottom flange checks: cross-section and stresses under the wheels, colour-coded green, amber and red, with the governing point at 116 % — Bottom flange stresses under the wheels, colour-coded by utilisation. Shown on a deliberately light 178×102×19 to bring out the red.

BUILT FOR YOUR PRACTICE

Your company on every report.

Crawl Beam Design is set up for your firm. Add your logo and company details once, and they appear throughout the app and on every calculation report it produces, ready to issue under your own name.

Your logo and details, captured once. Company name, address, registration and contact details, entered when your account is set up.
Filled in on every report. Title blocks and headers complete themselves, so every calculation goes out in your company's name.
Secure online accounts. Your team signs in to the app online, and your designs are stored safely in your company's own account.

YOUR
LOGO

Your Company (Pty) Ltd Consulting Structural Engineers 12 Example Street, Johannesburg · Reg. 2020/123456/07

Crawl beam design calculationsUnderslung monorail beam, moving-load analysis

Job no. 24-118Rev A

ClientYour clientDesigned byYour engineer StructureWorkshop crawl beamChecked byYour checker

Illustration of a report title block with your company's details

WHAT IT DOES

The whole crawl beam, checked in one place.

Moving-load analysis

The trolley runs the full length of the beam in both orientations, giving moment, shear and deflection envelopes and the support reactions.

Bottom flange under the wheels

Local wheel-load checks to EN 1993-6, with stresses at the web root, under the wheel and at the flange tip, colour-coded as you work.

Every member check

Bending, shear, lateral-torsional buckling, second-order lateral bending and torsion, deflections and fatigue, each with its numbers and clause.

Connections designed

Bolted hanger and splice connections with T-stub, prying, bolt and fatigue checks, drawn to scale with the plate schedule.

Optimise for mass

Finds the lightest section and end doubler combination that passes every check. Sections come from eight regional standards.

Calculation report

A printable report with the basis of design, inputs and results, and the code clauses quoted alongside if you want them.

EN 1993-6EN 1991-3EN 1993-1-1EN 1993-1-8EN 1990

SEE IT AT WORK

Design inputs screen with beam elevation, live bottom flange checks and a passing design summary — Design inputs with the checks alongside: change a value and everything updates.

Bending moment and shear force envelopes with governing values — Moving-load envelopes for moment and shear, with the governing values.

Splice connection drawn in two views with bolts and guide plates, plus its check table — A splice connection drawn to scale, with every check and its utilisation.

List of design checks, most marked OK and some marked CHECK — Every check with its numbers. Here the hoist load was pushed to 3.5 t to show what a failing design looks like.

First page of the crawl beam calculation report — The calculation report, ready to print or save as PDF.

Crawl Beam Design is a design aid. The engineer using it remains responsible for the design and must check all inputs, assumptions and results.

Need something similar for your own work?

If you have a calculation that deserves the same treatment, let's talk.

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