→Used in static load crack test for two transverse cross-sections and one longitudinal cross-section of P5600 track slab (5600x2500x200mm)
→20kN track slab longitudinal static load crack test, all points are simultaneously loaded to same load value at constant speed.
→15kN track slab transverse static load crack test, all points are simultaneously loaded to same load value at constant speed.
→used to apply static load to lower section and midsection for track slab (6450x2550x200mm,8630kg、C60、C55、C40), to perform load test, hold test, crack test and to determine bearing capacity of track slab.
Preload→multi-stage loading→load hold→load upto full range→full range hold→multi-stage unloading→unloading hold→return to original position→cyclic test
Standards:
→TJ/GW118-2013 High-speed rail CRTS Ⅲ type plate without a frantic jumble track tensioning prestressed concrete track plate first interim technical conditions
→GB/T50152-2012Standard for test method of concrete structures
→GB50204-2002Code for acceptance of constructional quality of concrete structures
Specifications:
→max. Load capacity: 600kN/1000kN
→measuring range of crack load: 1%~100%FS
→accuracy: ≤±1%
→load resolution: 1/300000
→loading rate: 0~40kN/S
→crack loading rate at single point: ≤0.5kN/S
→crack loading stroke: 0-200mm
→crack test height: 0-900mm
→crack test area (L*W): 6000*3000mm
→HRJ-Test full digital closed-loop crack test program
Configuration:
→loading frame (large span, high stiffness, high stability): 1set
→loading system: 1set
→HRJ-Test measurement and control system (full digital closed-loop, multiple channels, multiple functions, easy to operate): 1set
→longitudinal static load crack sensor (higher than grade C/20kN): a few pieces
→transverse static load crack sensor (higher than grade C/15kN): a few pieces