Testing Rigs for construction engineering

Application

The hydraulic testing machine was designed for cyclic and controlled crack opening at special concrete blocks with reinforcing iron (expanding bodies). At the same time, a constant or gradual pull-out force is applied to a fastener. After the test, the residual load-bearing capacity of the fastener is determined (dowel pull-out).
Changing transverse loads (seismic loads) can be applied to the fastening element using special devices.

Centric pull-out tests can also be carried out on the fastening element and cyclic fatigue stresses can be applied.

The testing machine can also be used for other static and dynamic tensile, compression and bending tests on components and parts or, depending on the requirements, can also be expanded.

Test parts

• Bonded anchor (injection system, bonded anchor)
• Anchor rails
• Anchor bolts
• Scaffolding anchors
• and much more

Features

• A solid and rigid horizontal machine frame serves as a test frame.
• Test force: horizontal 600 kN, vertical 100 kN or as required.
• The test cylinder is connected to the test device via a fork joint and a connecting rod.
• For a high degree of flexibility, the test cylinder and the test device can be moved sideways.
• A weight support that can also be moved allows easy assembly and disassembly of the test device.
• Enables tests, e.g. according to the technical rules of EOTA.
• The electronic force and displacement control system permits the individual control of force and displacement, including keeping the force constant, as well as the linear increase or decrease in force or displacement at preselectable speeds.

Application

This machine is designed to generate vibrations on buildings and frameworks.

Features

A testing cylinder, connected with the swinging mass without shear forces, generates the necessary amplitude. Due to a special positioning of the swinging mass by an articulated lever system, it is possible to operate the vibration exciter in vertical as well as horizontal position.

• Adjustable vibration masses between 100 kg and 400 kg (in steps of 25 kg with replaceable mass plates)
• Pressure oil supply by hydraulic unit
• Testing load up to 10 kN
• Test frequency up to 30 Hz
• Digital control and regulation system: During the test, it is possible to switch between the control types smoothly. The controller can be optimized by the operator online during the test.
  A nominal signal generator allows the generation of sinus, square, trapezoidal, triangular signal forms. User-defined signal forms can be created with the free programmable test software. The control system enables a force-time curve and time-distance curve with time-varying frequency (sine, linearly increasing, linearly decreasing). In addition to single-stage tests complex test procedures (multi-stage experiments) with looping are possible

Application

This testing rig is used to test beam, ceiling and wall elements according to DIN 1356.

Features

• Length of the elements: 800–6000 mm
• Width of the elements: up to 700 mm
• Thickness of the elements: up to 300 mm
• Static tests with test force: max. 300 kN
• 4-point-bending unit to test beams
• Hydraulic cylinders with stroke 350 mm
• Hydraulic unit with 280 bar and 15 l/min
• Controlling with precision control Valve
• Control unit EDCi in stand-alone and PC-operation

Application

The street and floor testing rig is designed to simulate static and dynamic loads on floor and road. The strength tests are mainly carried out by pressure loads, but static and dynamic compression and tension loads are possible as well.

Features

• Control of a synchronous test with up to 4 cylinders with the same or different test loads, as desired
• Maximum load: 1500 kN

Functioning

Application

The vertex pressure testing machine SDBP 1000 is especially used for testing reinforced concrete beams and tubes.

Features

• Test force 1000 kN compression or 500 kN tension
• Test frame with 4 supporting columns with a distance of 2800 mm
• 3-point-bending unit with continuously adjustable support distance  from 600 to 4500 mm
• With hydraulic drive
• Measuring and control device EDCi
• Stand-alone-operation or PC control possible

Application

The testing rig for asphalt is designed to test bituminous or hydraulically bound building material. The specimens are loaded in direction of pressure as well as other derivable testing methods.

Features

• Nominal force: 63 kN
• Frequency: 60 Hz
• Servo-hydraulic testing unit with temperature chamber
• Temperature range from -35 to +85°C