Business Description

SC Pile - Pile business(Products)Contact

SC Pile

These are concrete piles with shell steel pipes, which are steel pipes fused with concrete. Due to the longer length and the larger diameter of the foundation pile, the required performance for the pile is higher.

Products handled
Hi-SC123 pile / HI-SC105 pile / 590-SC105 pile
Other SC pile / HI-SC pile

Types of SC Pile

straight pile

  • * Pile length 4 ~ 15 m
  • * In cases of piles 6 meters or less, please consult with us.
  • * Pile diameter: 300 ~ 1,200 mm

Hi-SC105

Major features

Hi-SC105 is a concrete pile with a shell steel pipe with a concrete compressive strength of 105 N / mm². Due to the longer length and the larger diameter of the foundation pile, the required performance for the pile is higher. Furthermore, due to the advent of the high bearing capacity piling method, attention is being paid to cost reduction by reducing the diameter of the foundation pile and reducing the environmental burden by decreasing waste generated.

Our company's 105 N / mm² series concrete pile is a product with enhanced compression performance; we developed these piles to satisfy these perfromance requirements. Because of this, our employment of the high bearing capacity pile construction method is optimized, and a wide range of designs that fully demonstrate the merits of each construction method will be possible.

Numbers used for design
1. Material strength
1-1 Concrete
Compressive strength 105 N / mm²
Young’s modulus 40,000 N / mm²
1-2 Steel pipes
TypesStrength SKK490、STK490
Yield point (N / mm²) 325
Young’s modulus (N / mm²) 205,000
2. Allowable unit stress
Allowable unit stressTypes of materials Sustained (N / mm²) Temporary (N / mm²)
Compressive Tensile Flexural Shear Compressive Tensile Flexural Shear
Concrete 30 - - - 60 - - -
Steel pipes (SKK490・STK490) 217 217 217 125 325 325 325 188
Features
  • ● Uses ultra high strength concrete (Fc = 105N/mm²) and supports high bearing capacity
  • ● Allowable compressive stress is greatly improved and beneficial for cost reduction at design time
Allowable compressive stress for sustained loading (N / mm²)
Hi-SC Hi-SC123
22.0 30.0
Allowable compressive stress for temporary loading (N / mm²)
Hi-SC Hi-SC123
44.0 60.0
Comparison of flexural strength

The flexural strength of Hi-SC105 (standard type) and Hi-SC (standard type) will be as shown on the right figure. (For representation, values for 800mm pile diameters, 6 mm steel pipe thickness, and 1 mm corrosion allowance are shown.)
Hi-SC105 and Hi-SC have the same reinforcement strength for steel rods, so the yield strength at full tension is the same, but as the axial force increases, the ratio of the burden of concrete increases, so the greater the axial force applied to the pile, the greater the benefits demonstrated by Hi-SC105 will be.

Hi-SC123

Major features

These are concrete piles with shell steel pipes which improve upon the strength of the Hi-SC105 series. They have a concrete compressive strength of Fc = 123 N / mm² and a steel pipe reference strength of F = 325 N / mm².

Our employment of the high bearing capacity pile construction method is optimized, and a wide range of designs that fully demonstrate the merits of each construction method will be possible.

Numbers used for design
1. Material strength
1-1 Concrete
Compressive strength 123 N / mm²
Young’s modulus 40,000 N / mm²
1-2 Steel pipes
TypesStrength SKK490、STK490
Yield point (N / mm²) 325
Young’s modulus (N / mm²) 205,000
2. Allowable unit stress
Allowable unit stressTypes of materials Sustained (N / mm²) Temporary (N / mm²)
Compressive Tensile Flexural Shear Compressive Tensile Flexural Shear
Concrete 35 - - - 70 - - -
Steel pipes (SKK490・STK490) 217 217 217 125 325 325 325 188
Features
  • ● Uses ultra high strength concrete (Fc=123N / mm²) and supports high bearing capacity
  • ● Allowable compressive stress is UP significantly
    Beneficial for cost reduction at design time
Allowable compressive stress for sustained loading (N / mm²)
Hi-SC105 Hi-SC123
30 35
Allowable compressive stress for temporary loading (N / mm²)
Hi-SC105 Hi-SC123
60 70
Comparison of flexural strength

The flexural strength of the Hi-SC123 (standard type) and the Hi-SC105 (standard type) will be as shown on the right figure. (For representation, values for 800mm pile diameters, 6 mm steel pipe thickness, and 1 mm corrosion allowance are shown.)
The Hi-SC123 and the Hi-SC105 have the same steel pipe volume, so the yield strength at full tension is the same, but as the axial force increases, the ratio of the burden of concrete increases, so the greater the axial force applied to the pile, the greater the yield strength of Hi-SC123 will be.

590-SC105

Major features

These are concrete piles with shell steel pipes with a concrete compressive strength of Fc = 105 N / mm² and a steel pipe reference strength of F = 440 N / mm².

It is possible to further logical and economical design with high strength steel pipes with an improved reference strength compared to the Hi-SC105 pile.

Specifications
Size
Outer diameter Φ600~1200mm
Steel pipe thickness t6~22mm
Numbers used for design
Concrete
Design strength 105 N / mm²
Young’s modulus 40,000 N / mm²
 
Steel pipes
Design strength 440 N / mm²
Young’s modulus 205,000 N / mm²
2. Allowable unit stress
Allowable unit stressTypes of materials Sustained (N / mm²) Temporary (N / mm²)
Compressive Tensile Flexuralげ Shear Compressive Tensile張 Flexural Shear
Concrete 30 - - - 60 - - -
Steel pipes
(JFE-HT590P)
440 440 440
Comparison of flexural strength

The flexural strength of the Hi-SC105 (standard type) and the 590-SC105 (standard type) will be as shown on the right figure. (For representation, values for 800mm pile diameters, 22 mm steel pipe thickness, and 1 mm corrosion allowance are shown.)
590-SC105 has a higher tensile strength than Hi-SC105.

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