Electronics Black Wrist Watch
Electronics Black Wrist Watch

IRHP Instrumented Rebar

Category: Geotechnical & Civil Engineering Instrumentats

HIGH STABILITY AND SENSITIVITY

RUGGED, WATERPROOF CONSTRUCTION

AVAILABLE FOR MOST REBAR SIZES

 

Instrumented rebars and sister bars are used to measure load in concrete reinforcing bars or strain in concrete structures.

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An instrumented rebar or sister bar is a load sensing element consisting of a hollow reinforcing bar containing a coaxially-mounted vibrating wire strain gauge. Compressive or tensile loads induced into the bar are measured directly with the strain gauge. Instrumented rebars are individually calibrated, correlating strain to load.

 

Instrumented rebars and sister bars are supplied with an integral temperature sensor. Model IRHP refers to the standard instrumented rebar size while model IRCL refers to the sister bar.

 

SPECIFICATIONS

 

  MODEL    Nominal diameter1   Calibration range   Maximum working load recommended   Maximum working load to yield
  IRHP-2000   50 mm (2 in.)   360 kN   690 kN   1155 kN
  IRHP-1375   34 mm (1 3/8 in.)   160 kN   275 kN   325 kN
  IRHP-1250   31 mm (1 1/4 in.)   130 kN   215 kN     260 kN
  IRHP-1125   28 mm (1 1/8 in.)   100 kN   1600 kN   200 kN
  IRHP-1000

  25 mm (1 in.)

   80kN   135 kN   160 kN
  IRHP-0750   19 mm (3/4 in.)   45 kN   75 kN   90 kN
  IRCL-0500

  13 mm (1/2 in.)

   27 kN    

 

 

1 Other sizes available upon request 

 

  Range of gauge   3000 με
  Accuracy    ±0.25% F.S.
  Resolution   0.4 με 
  Operating temperature   −20 to +80°C
  Thermistor   3kΩ (see model TH-T)
  Cable   IRC-41A (IRC-390 available with some sizes)
  Nominal rebar length   1 m (standard)

 

ORDERING INFO

 

Please specify:

  • Rebar diameter
  • Cable type and length

 
 

 Accessories:

  • High strength coupling
  • Readout instruments: MB-3T(L), SENSLOG