Wind Load Calculation Excel Sheet Eurocode 〈FHD〉

The input section of your sheet should capture:

The exposure factor ( c_e(z) ) depends on terrain category and height. Eurocode provides tables. In Excel, you can use VLOOKUP or an approximate formula:

[ c_e(z) = c_r^2(z) \cdot c_t^2(z) \cdot \left[1 + \frac2 \cdot k \cdot \ln(z/z_0)c_r(z) \cdot c_t(z)\right] ]

Simplify for engineering: Use the tabular values from EN 1991-1-4 Table 4.11. wind load calculation excel sheet eurocode

Create a lookup table in sheet "Terrain":

| Height z (m) | Terrain II ( c_e ) | Terrain III ( c_e ) | ... | |--------------|----------------------|------------------------|-----| | 5 | 1.7 | 1.3 | | 10 | 1.9 | 1.5 | | 20 | 2.1 | 1.7 |

Then, use =VLOOKUP(z, TerrainTable, column_index, TRUE) to get ( c_e(z) ). The input section of your sheet should capture:

This workbook is both a calculation tool and a learning aid: set it up so each derived cell references a Eurocode clause or a short comment. That makes the sheet auditable and interesting — engineers can trace how a gust becomes a force and a number on a drawing.

If you’d like, I can:

While you can build from scratch, there are also pre-made templates. However, building your own ensures compliance with specific National Annexes. While you can build from scratch, there are

Recommended structure for your Excel workbook:

[Cover] → [Input] → [Terrain Table] → [q_p calc] → [c_f tables] → [c_sc_d] → [Summary Forces] → [Cladding Pressures] → [Charts]

Protect formula cells to avoid accidental editing, but leave input cells unlocked.

Use conditional formatting to warn if height > 200m (Eurocode limit).

Add a comments column referencing the exact Eurocode clause (e.g., "EN 1991-1-4:2005, §7.2.1") for auditability.