DATA
Triangle Pile, side length: 25 cm
Concrete Quality: K-450
Dimension & Main Reinforcement: 4D13mm or 4D16mm
Stirrup: ø 5 mm (tolerance 0.2 mm)
Area of Steel: 8.04 cm²
Area of concrete (netto): 617.00 cm²
CALCULATION
Strees allowable of Concrete Compression: 168.08 Kg/cm²
Strees allowable of Steel Tension: 2.262 Kg/ cm²
P AXIAL Ultimate :
P = 121.885 Kg = 121.9 Ton
SAFETY FACTOR : 2.1
P allowable : 40 – 55 TON for 4D13mm or 45 – 60 ton for 4D16mm
Notes :
1. P allowable Concrete = 0.45 fc’ = 0.45 x (0.83 x 450)
2. Minimum age of pile > 28 day