【Scope of application】

This machine is a special test device developed according to the test requirements of JT/T 327-2016 "General Technical Conditions for Expansion Joints of Highway Bridges" and other relevant standards. It can simulate the actual stress state of expansion devices on highway bridges and is mainly used for bridge expansion and contraction. The assembly tolerance, waterproof performance, and deformation performance tests in the device field are suitable for testing and testing samples of single-slit, double-slit and multi-slit modular expansion devices, comb-tooth plate expansion devices and other samples.

【Standards compliant】

JT/T 327-2016 6.1.3.5.2 Assembly tolerance requirements-compression performance test

JT/T 327-2016 Appendix B Deformation Performance Test

JT/T 327-2016 Appendix C Waterproof Performance Test

CJ/T 497-2016 Appendix C Waterproof performance test method of finished expansion device

【technical parameter】

1. Display and control: microcomputer control large screen display, Chinese control menu

2. Clamping force unit: KN

3. Combined test bench: two sets of 1000mm*2000mm

4. Aluminum sliding rail: 10

5. I-beam auxiliary fixture: 4000mm

6. Blessing method: adjustable clamp positioning bolt

7. L120 type fixing clamp for expansion joint stretching device: 12 sets

8. Expansion joint compression device L80 type fixing fixture: 12 sets

9. The maximum telescopic space of the telescopic device: 1000mm

10. Adjustable stroke of specimen carrying device height difference: 0-20mm

11. Speed ​​range: 0-200mm/s

12. Sensor: 100KN

13. Load measurement range: 2%--100%F.S

14. Load horizontal displacement accuracy: ±0.02% F•S

15. Supporting test aids: one set, digital display

16. Control method: Servo motor drive control

17. Horizontal adjustment displacement of test bench: 0-10mm

18. Displacement control: 0-1000mm, accuracy 0.1mm (inching + automatic)

19. Balance detection: JIGAOTEST v1.0 fixed load and positioning shift dual-function synchronous measurement and control system

20. Transverse displacement deformation stroke: 150mm

21. Lateral displacement test force: 100KN

22. Vertical displacement and deformation stroke: 100mm

23. Vertical displacement test force: 2*100 KN

24. Deformation measurement accuracy: 0.001mm

25. Total weight: 1800KG

26. Power supply: 220v

27. Appearance size: 200*150*95cm(length*width*height) test bench 600*700*165cm(length*width*height) Microcomputer control system

28. Operation area: 4.5*5.5m