Pile foundation

This program designs reinforcement for a 4-pile cap using the strut-and-tie model in accordance with NS-EN 1992-1-1:2004+A1+NA (Eurocode 2, Section 6.5).

Forces are transferred from the column to the piles via compression struts and tension ties. The program calculates:

• Splitting reinforcement over piles (x and y)
• Tension reinforcement in the bottom zone
• Distribution reinforcement on top, sides and bottom
• Design checks: struts, nodes and concrete stress over pile heads

After calculation, an interactive 3D model shows schematic reinforcement (ties, splitting and distribution), pile heads and a column stub. Reinforcement types can be filtered and result-table selections can be linked to the model. Foundation geometry with plan and section views is available in a separate geometry modal.

The 3D view is for illustration and quality review — not a fabrication drawing. Users who are not logged in can try the program in demo mode with fixed sample inputs.

Typical use: Design and visual review of reinforcement in a 4-pile cap using the strut-and-tie method. The 3D model is schematic — use the result tables for design values.