Volex Labs / Calculations / Reinforced concrete staircase design to Eurocode 2.

Reinforced concrete staircase design to Eurocode 2.

Enter the going, rise, waist and flight span, and Volex Anvil sets out the flight geometry, the design load on plan (self-weight of the waist and steps plus imposed load through the EC0 combination), and designs the flexural reinforcement for the sagging moment with the span/depth deflection check.

The stair is designed as a one-way spanning slab per the standard UK approach — Mosley, Bungey & Hulse §11.7 — with the slope, load on plan and reinforcement all shown for checking.

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What Volex Anvil checks

Validated against the published example

RC stair flight — Mosley, Bungey & Hulse §11.7 EC0 §6.4.3 load combination; Mosley, Bungey & Hulse §11.7
QuantityPublishedVolex AnvilError
Flight slope35.75°35.8°0.14%
Design load on plan nEd15.8 kPa15.8 kPa0.00%
This case is one of 359 published checks the platform passes — the full table, with every source and every error, is public at volexlabs.com/verification.

Frequently asked

Does it account for the load on the going?
Yes — the self-weight of the waist and the triangular steps is computed and, with the imposed load, converted to the design load on plan through the EC0 §6.4.3 combination.
What span condition does it use?
The flight is designed as a one-way spanning slab between supports; the sagging moment and span/depth deflection follow Mosley, Bungey & Hulse §11.7.
Is it validated?
The slope geometry and design load on plan are checked against Mosley, Bungey & Hulse §11.7 — slope within 0.14% and load within 0.00%.
Free to try?
Yes — 10 free calculations a month with clause references. Pro (£29/month) adds unlimited calculations and PDF export.

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