Our answers, next to the published ones.
Every row below is a published worked example or closed-form solution, the value STATIX gives for the same input, and the difference. We list a row only if an automated test checks it and that test passed on 30 September 2026.
The calculators you can use today.
These run on this website. Open the calculator, enter the same input as the example, and you get the same answer.
Two-way slab calculator
| Check | Published source | Published | STATIX | Difference |
|---|---|---|---|---|
| Simply supported square plate, maximum deflection | Timoshenko & Woinowsky-Krieger, Theory of Plates and Shells | 0.00406 qa⁴/D | 0.004061 qa⁴/D | +0.03% |
| Simply supported square plate, maximum moment | Timoshenko & Woinowsky-Krieger, Theory of Plates and Shells | 0.0479 qa² | 11.952 of 11.975 kNm/m | −0.19% |
| Clamped square plate, span moment | Timoshenko & Woinowsky-Krieger, Theory of Plates and Shells | 0.0231 qa² | 5.745 of 5.775 kNm/m | −0.51% |
| Clamped square plate, edge moment | Timoshenko & Woinowsky-Krieger, Theory of Plates and Shells | 0.0513 qa² | 12.694 of 12.825 kNm/m | −1.02% |
Section properties calculator
| Check | Published source | Published | STATIX | Difference |
|---|---|---|---|---|
| IPE 200, area | Published section tables | 2,850 mm² | 2,848 mm² | −0.06% |
| 150 PFC, second moment of area Iz | Published section tables | 834 × 10⁴ mm⁴ | 817 × 10⁴ mm⁴ | −2.1% |
The PFC difference is expected: this calculator models sharp corners, and the published table includes the rolled root radii.
Base plate calculator
| Check | Published source | Published | STATIX | Difference |
|---|---|---|---|---|
| Anchor concrete cone resistance NRd,c | InFaSo Design Manual I, Example 9.2 | 119 kN | 119.25 kN | +0.21% |
The connection engine being built.
These checks ran in the STATIX 3D development build behind the Connection Studio. Since 4 October the free end plate, eaves haunch and apex haunch calculators use the same connection engine; the base plate calculator on this website has its own engine, and the gusset checks here are not on this website yet.
Bolted end plate, EN 1993-1-8 component method
| Check | Published source | Published | STATIX | Difference |
|---|---|---|---|---|
| Moment resistance Mj,Rd | SCI P398, Example C.1 | 416 kNm | 415.77 kNm | −0.05% |
| Column web in compression | SCI P398, Example C.1 | 841 kN | 839.86 kN | −0.14% |
| Moment resistance Mj,Rd, stiffened column | SCI P398, Example C.2 | 471 kNm | 472.43 kNm | +0.30% |
| Stiffener crushing | SCI P398, Example C.2 | 1,595 kN | 1,595.1 kN | +0.01% |
Column base plate
| Check | Published source | Published | STATIX | Difference |
|---|---|---|---|---|
| Concrete bearing resistance FC,Rd | SCI P398, Example E.1 | 2,193 kN | 2,187.3 kN | −0.26% |
| Flange fillet weld resistance | SCI P398, Example E.1 | 2.29 kN/mm | 2.292 kN/mm | +0.09% |
One known difference in the same example: the plate tension resistance comes out 3.2% higher than published (1,644 kN against 1,593 kN), because STATIX uses the exact lever arm of 58.15 mm where the book rounds it to 60 mm. That row is on the unsafe side, so it is not yet counted as a pass.
Lapped gusset connection
| Check | Published source | Published | STATIX | Difference |
|---|---|---|---|---|
| Resistance, 6 mm gusset | Gebremeskel, Steel Construction 37(6), SAISC, 2013 | 48.96 kN | 48.96 kN | 0.0% |
| Resistance, 10 mm gusset | Gebremeskel, Steel Construction 37(6), SAISC, 2013 | 92.16 kN | 92.16 kN | 0.0% |
This page shows results, not a certificate. Every STATIX result must still be checked and signed by a registered professional engineer. We add rows as new tests are written; a row is never kept on this page if its test stops passing.
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