Ⅰ Test items
Vertical load bearing capacity test
Horizontal load carrying capacity test
Horizontal hysteresis performance test
Compressive modulus of elasticity test
Shear modulus of elasticity test
Shear adhesion test
Shear ageing test
Friction coefficient test Ultimate compressive strength test
Ultimate compressive strength test
Rotational performance test
The vertical rated maximum compression test force of 30,000kN, vertical compression space of 800mm, single shear system maximum test force of 3500kN, stroke ±200mm, double shear system maximum test force of 4000kN, stroke 200mm, corner system maximum test force of 1200kN, stroke 200mm, can meet the vertical and shear performance test of various types of bearings. The equipment is mainly used for compression, shear and corner performance tests of various types of seismic isolation, seismic and structural function devices, both for testing existing structural bearings and components and for research and development tests of new types of bearings and components in the future.
This testing machine adopts four columns, vertical oil cylinder top-mounted structure. Host structure is reasonable, good rigidity, safe and reliable. The base and beam of the main machine are made of cast steel, the vertical actuator is a single-cylinder structure, the whole machine adopts bolt shear-free structure, the vertical and horizontal steel body is stressed, avoiding bolt shear force causing bolt loosening, frame deformation, stress parts gap and safety accidents. Embedded lateral reaction plate and the mainframe frame cooperate to form a high-strength, high-rigidity vertical and horizontal self-reaction loading frame. The horizontal dynamic shear system adopts single outlet rod servo actuator, and the actuator adopts low damping large gap design technology to ensure good dynamic performance; the horizontal dynamic controller SYMTS controller, with high control accuracy and fast response. Control system with full digital electro-hydraulic servo control technology as the core, vertical, horizontal, corner multi-channel control; computer fully automatic data processing, and drawing test curve. The machine has a reasonable structural design, large test space and convenient for loading and clamping specimens.
Ⅲ. Main technical parameters
1.Vertical loading section
1.1Vertical test space: 800mm.
1.2 vertical compression test force: 30,000kN.
1.3 Test force measurement accuracy: ≤±1%.
1.4 test force measurement range: 2%-100% F-S (calibration range 10%-100% F-S)
1.5 Maximum actuator travel: 800 mm.
1.6 Maximum speed at no load: 20 mm/min.
1.7 Effective size of table surface: 1800mm x 1800mm (length x width)
2 Horizontal single shear section
2.1 horizontal actuator horizontal shear force: 3500kN.
2.2 The accuracy of the indicated value: better than ±1%.
2.3Test force measurement range: 2%-100% F.S (calibration range 10%-100% F.S)
2.4 Maximum stroke of the working piston: 200mm
2.5 Shear piston displacement accuracy: better than ±0.5% F.S.
2.6 Force measurement method: load sensor force measurement.
2.7 displacement measurement method: high precision magnetostrictive displacement sensor
3 Double shear system
3.1 maximum horizontal shear force of the double shear actuator: 4000kN
3.2 Accuracy of the indicated value: better than ±1% (1% to 100% F.S.).
3.3 Working piston advance speed: 0 to 50 mm/min (adjustable).
3.4 Maximum stroke of the working piston: 200 mm.
3.5 displacement accuracy: better than ±1.0% F.S.
4 Cornering system
4.1 Maximum corner ejection force of the corner actuator: 1200kN.
4.2 Accuracy of the indicated value: better than ±1% (4% to 100% F.S.)
4.3 Resolution of displacement: 0.01mm.
4.4 Maximum stroke of the working piston: 200mm.
4.5 Working piston pushing speed: 0 to 60mm.
4.6 Displacement accuracy: better than ±1.0% F.S.