Structure Laboratory

 HEAD of LABORATORY
Prof. HRC. PRIYOSULISTYO

Structural Lab is one of facility in Civil and Environmental Engineering Department of Universitas Gadjah Mada. It holds students’ activity in researching for their undergraduate, graduate, and post-graduate thesis. It is also a place for Magister Program of Building Material Technology and Magister Program of Facilities and Infrastructures Management activities. Furthermore, it serves various tests for structural elements of buildings, roads, and bridges from external institute, both private and governmental based on the recent procedures where it is handled by an expert team.

ACTIVITY

1. Lecture
Academic activity for Magister Program of Building Material Technology and Magister Program of Facilities and Infrastructures Management
2. Lab Work
Undergraduate and graduate program holds the lab work in here for selected courses, such as:
Undergraduate program:

  • Mechanics of Material
  • Statics

Graduate program:

  • Analysis of Structural Dynamics
  • Advanced Concrete Structures
  • Structural Experiment Method
  • Bamboo Technology
  • Research Method
  • Test Method
  • Research
  • Another activity such as workshop, training, and analysis for structural elements of a building, road, or bridge project.
3. Research
4.  Another activity such as workshop, training, and analysis for structural elements of a building, road, or bridge project.

FACILITIES AND APPARATUS

Facilities in this lab are shown below.

  1. Main lobby
  2. Workshop
  3. Practice room
  4. Simulation/Computer room
  5. Reference Room
  6. Secretariat room
  7. Thesis defense room
  8. Lecture room
  9. Studio room
  10. Student waiting room
  11. Coffee break room

APPARATUS IN STRUCTURAL LAB

Apparatuses in this lab are shown below.

2. Destructive apparatus​

Material Test Apparatus
1. Non-destructive apparatus
  1. Caliper (measuring the structural element0
  2. Schmidt hammer (measuring the hardness of concrete surface)
  3. Ultrasonic pulse velocity meter/UPV (measuring the elasticity modulus of concrete/timber)
  4. Crack microscope (measuring crack with 0.1 mm precision)
  5. Rebar locator (measuring the thickness of concrete lid, position, and diameter of steel
  6. Permeability meter (measuring the impermeability of concrete against water and air)
  7. Air suction pump
  8. Water/air hosepipe
  9. Air blow pipette
  10. Water/air plug
  11. Moisture curing cabinet
  12. Microscope
  13. Video camera, for observing sample movement or changes
  14. Monitor
  15. E-meter, for identifying concrete solidity
  16. Magnetic vibrator, in various frequency
  17. Accelerometer
  18. Signal controller (frequency and amplitude regulator)
2. Destructive apparatus
a. Core case, for taking cylinder sample of a column, beam, or plate. It consists of:
– Core stand (position holder and core bit suppressor)
– Core bit (pipe-shaped drill bit for concrete sampling)
– Water pump (cooling water pump)
– Hand drill (core bit rotator)
– Pliers (sample clip)
b. Core drill, which consists of:
– Rotating machine (core bit rotating machine)
– Adjuster (core bit suppressing wheel)
– Core bit (diameter 100-150 mm)
– Flexible cooling water hose
c. Flexural apparatus
– Motor speed controller (loading speed adjuster)
– Four-points load (loading at 1/3 span for timber or concrete)
 d. Compression machine
– Motor speed controller (suppression speed adjuster)
– Release valve
– Analog load indicator
e. Abrams’ cone, (with 200 mm bottom diameter, 100 mm top diameter, and 300 mm height)
f. Vibrating table, for VB test
 Structural Test Equipment
1. Non-destructive apparatus
a. Chloride test
– Probe (an electricity sensitive material)
– Indicator
– Stick (probe and indicator mover)
 b. Dynamic test
– A/D card type PCL 812PG (converting vibration signal into numeric/digital display, 14 channels can be recorded every 800 milliseconds)
– Signal generator (a standard signal generator for data calibration)
– Mechanical exciter (a medium frequency structure vibrator in various forces)
– Speed controller (a vibration frequency adjuster to have natural frequency and attenuation)
– Testing beam
 c. Sound and Ground Vibration
– Microphone (detecting the volume of sound in decibel)
– Conditioner (vibration amplifier and save or transmit it to another equipment such as computer or recorder)
– Printer (printing the recording data)
– Accelerometer (in x, y, and z direction)
– Another equipment
 d. Probes/sensor and indicator
– Inclinometer (measuring the slope)
– Accelerometer (measuring acceleration)
– Velocity meter (measuring speed)
– Conditioner/indicator (signal amplifier)
– Digital PH meter and thermometer
 e. Load displacement
– Load cell (control-200 tons)
– LVDT (50 to 200 mm stroke)
– Indicator (TC 31K with manual/automatic recording system)
– Thermocouple and digital indicator (type K: 1200°C)
  2. Destructive apparatus
 a. Furnace apparatus-thermic, consists of
– Burner
– Temperature control
– Thermocouple and indicator
 b. 100 tons hydraulics jack, consists of
– Hydraulic pump
– Hydraulic piston
– Flexible hose
– Analog pressure indicator
 3. Supporting equipment
– Overhead crane
– Bore machine
– Grinder machine
– Test frame
– Electric welding
– Vibrator
– Concrete mixer
– Digital oven
– Manual handsaw
– Timber wood pale
– Spindle Moulder
– Lathe