Structure Performance of Prestressed High-Strength Concrete Pile Covered With Steel Tube

Key Points

• The aim is to evaluate the structural performance of prestressed high-strength concrete piles covered with steel tubing under loads.
• Conducted bending tests and bending shear tests on prestressed high-strength concrete piles covered with steel tubing.
• Applied a section partition method to assess the ultimate bending strength of the piles.
• Evaluated allowable bending strength based on the combination of steel tube and concrete strengths.
• SPHC piles demonstrate high strength and ductility under bending loads.
• Allowable bending strength surpasses that of traditional piles, indicating better performance.
• Ultimate bending strength confirms safety limits at a compressive concrete strain of 0.5%.