Pile Foundation Design for G+4 Building | Pile Cap, Column & Reinforcement Structural Drawing

G+4 Building Pile Foundation Plan with Pile Cap, Column Layout & Reinforcement Details

This structural drawing represents an ideal pile foundation system designed for a Ground + 4 storey building.

The plan clearly shows:

• Top view of pile cap with four piles
• Green circular symbols representing piles
• Red rectangular block representing column size
• Longitudinal section of column with pile foundation
• Cross-section of pile and plinth beam
• Reinforcement detailing for column C1 & C2
• Stirrup spacing and main bar sizes
• Pile diameter and embedment depth

The foundation system transfers building loads from the column to the pile cap and further into deep soil strata through reinforced concrete piles.

This type of pile foundation is typically used where soil bearing capacity is low and multi-storey loads need deep load transfer.

Pile Foundation Design for G+4 Building | Pile Cap, Column & Reinforcement Structural Drawing

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This drawing illustrates a complete pile foundation design suitable for a G+4 residential or commercial building. The foundation system includes reinforced concrete piles, pile cap, plinth beam, and column reinforcement detailing.

In the top plan view, four circular piles (shown in green) are arranged symmetrically beneath a central rectangular column (shown in red). These piles are connected through a reinforced concrete pile cap, which distributes structural loads evenly.

The cross-sectional view clearly shows the pile embedment depth and the transfer of axial load from column to pile cap and into the piles. Reinforcement details such as 12mm main bars, stirrup spacing, and ties at specified intervals are mentioned for structural stability.

Column reinforcement plans (C1 and C2) are included, along with bar diameters and spacing. The plinth beam section (approximately 1 ft × 2 ft) is also detailed, showing reinforcement placement.

This type of foundation is recommended for multi-storey structures (G+4) where soil bearing capacity is insufficient for shallow footings. Pile foundations help in transferring loads to deeper, stronger soil strata.

It is an ideal structural solution for urban buildings, apartment projects, and commercial structures constructed on weak or filled soil conditions.


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