Hollow-bar piles

Hollow-bar piles consist of three main components: the pile head, the steel tendon or compression member - including coupler and single-use drill bit - and the grout body.

The steel tendon or compression member is a hollow steel bar with a coarse, cold rolled round or trapezoidal thread and can therefore be cut or joined at any desired point.

 

Features:

  • National approval pending
  • Well suited to transport and assembly conditions as delivered in parts with couplers
  • A wide selection of drill bits allows use in a wide range of soil types
  • Simple to adapt to required length on site, e.g. with varying geological conditions by using partial sections with couplers
  • Excellent bond between SHS-bar and cement mortar thanks to threaded ribs
  • Can be closely matched to the required loads thanks to wide range of cross-sections
  • Facilitates rapid building progress since drilling, installation and injection of the pile are carried out in a single operation

Types available:

Temporary piles

  • Temporary piles (service life up to 2 years)

Semipermanent piles (service life up to 50 years)

  • Semipermanent piles, untreated, allowing for a soil-dependent rusting rate
  • Semipermanent piles, hot-dip galvanised, allowing for a soil-dependent rusting rate

tendon

Ø

[mm]

ultimate load

Fpk

[kN]

yield load 0.2%

Fp0.2

[kN]

design load

Rd = Fp0.2 / 1.15

[kN]

H 0420-38

420

350

304

H 0500-38

500

400

348

H 0630-51

630

530

461

H 0800-51

800

630

548

H 1000-64

1000

750

696

H 1200-64

1200

900

826

H 1400-76

1400

1075

939

H 1600-76

1600

1200

1043

H 1800-76

1800

1500

1217

H 2400-108

2400

1850

1548