Test engineering

_{© TU Graz/LKI}

The tensioning field (10 x 20 m)

• Two-row "prestressed concrete box girder" separately founded and with a 1.0m thick tensioning slab (two-axis and two-layer prestressed)
• Steel tensioning rails at 0.5m intervals Tensioning grid: 50x50(100)cm Anchor force per anchorage: max. 500kN
• Underfloor hydraulic ring line with taps

1MN testingmachine (2 pieces)
4 column test scaffold (column distance: 1 x 2,5m)

• vertically adjustable transverse yoke with hydr. mech. clamping (clear height max. 2.7m)
• longitudinally adjustable at the clamping field and coupled with the clamping field (hydr. pre-tensioned tie rods)
• can be equipped with test cylinders (100kN and 1000kN)

3MN or 4MN testingmachine (1 piece)
4-column test scaffold (distance between columns: 1.5 x 3.5m)

• vertically adjustable transverse yoke with passive clamping (clear height max. 5.0m)
• longitudinally adjustable (l= ±3,5m) and coupled to the clamping field (hydr. pre-tensioned tie rods)
• can be equipped with 1MN and 4MN test cylinders

Reaction wall elements
modular reaction wall system

• clamped to the clamping field
• Modules in different sizes

100kN test drive (1 piece)
Servo-hydraulic test cylinder MTS F= ±100kN, h_max= 250mm

• with foot plate or head and foot joint and spherical pressure plate
• Load cell and _deltap transducer

1MN test drive (2 pieces)
Servo-hydraulic test cylinder MTS F= ±1000kN, h_max= 250mm

• with foot plate or foot and head joints (the latter "backlash-free") as well as spherical pressure plate
• load cell and _deltap transducer

4MN test drive (1 piece)
Servo-hydraulic hollow piston test cylinder

F_stat= ±4MN, F_dyn= ±3MN, h_max= 250mm, di= 250mm

• spherical pressure plate (pendulum axis)
• load cell and _deltap transducer
• Bending moment measurement X/Y

Universal testing machine BETA1000
F_max=1000kN, Compression h_max=1200mm, Tensile h_max=900mm

• Crosshead speed: 0 to 200mm/min
• High-precision electromechanical test frame with high lateral as well as axial stiffness
• The lower test area is designed for tension/compression and alternating load tests up to the capacity limit
• Main drive with low-inertia servo motor and digital position feedback
• Constant speed of the moving crosshead, acting via a precise recirculating ball screw

Hydraulic wedge clamping system
F_maxstat=333kN, F_maxdyn=250kN

• Hydraulic tensioning system for tensile tests
• for MTS 100kN, MTS 1MN and BETA1000
• Connection thread: M36 x 2
• Clamping jaws for round and flat specimens
• specimen thicknesses:
  Round specimens: d=5mm to d=30mm
  Flat specimens: 1mm to 40mm

Universal testing machine Shimadzu AG-50
F_max=50kN, h_max=1045mm

• crosshead speed: 0 to 1000mm/min
• Tensile/compression and alternating load tests

Compression testing machine
F_max= 5000kN, h_max= 80mm, maximum installation height: 500mm

• spherical pressure plate
• modular intermediate plates

Torsion test rig
M_max= 5000Nm

• variable specimen mounting
• Half shells for drill core mounting

Tear frame
hydraulic prestressing frame

• prestressing length: 4m
• Fmax=1000kN

Tensile adhesion tester
Hydraulic tensile tester

• Strain Gauge applied tension spindle
• for drill core and cylinder testing