Volex Labs / Calculations / Highway bridge loading to Eurocode 1 (EN 1991-2).

Highway bridge loading to Eurocode 1 (EN 1991-2).

Enter the carriageway width and span, and Volex Anvil sets out the notional lanes, applies EC1-2 Load Model 1 (the tandem-axle system TS plus the uniformly-distributed load UDL) with the UK National Annex factors, and returns the design load effects for the deck.

The lane division and load model follow EN 1991-2, cross-referenced to the BS 5400 approach many UK bridge engineers know, so the notional lanes and applied loads are the standard ones.

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What Volex Anvil checks

Validated against the published example

Highway loading — notional lanes and knife-edge load EC1-2 §4.2.3 / BS 5400 — notional lane division
QuantityPublishedVolex AnvilError
Number of notional lanes220.00%
Knife-edge / axle load KEL240 kN240 kN0.00%
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

Which load model?
EC1-2 Load Model 1 (the tandem system plus UDL), the primary model for road-bridge assessment, with the UK NA adjustment factors.
Does it cover BS 5400?
The notional-lane approach is cross-referenced to BS 5400 HA/HB for engineers assessing existing bridges to the legacy code.
Is it validated?
The lane division and applied loads are checked against EN 1991-2 — within 0.00%.
Free tier?
Yes — 10 calculations a month free; Pro (£29/month) adds unlimited runs and PDF calc sheets.

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