Where are the JQZ series ball bearings mainly used
The JQZ series spherical bearings are the main bearings for highway, municipal, and rail transit bridges, especially suitable for complex bridges such as bends, slopes, slopes, large spans, and heavy loads.
The JQZ series spherical bearings are the main bearings for highway, municipal, and rail transit bridges, especially suitable for complex bridges such as bends, slopes, slopes, large spans, and heavy loads.
1、 Core application areas
1. Highway bridges (the most extensive)
Conventional bridges: simply supported beams, continuous beams, T-beams, and box girder bridges on highways, national highways, and provincial roads.
Special bridges: curved bridges, sloping bridges, inclined bridges, large-span bridges, elevated bridges, and interchanges.
Heavy duty bridge: a bridge that can withstand heavy vehicles and container trucks.
2. Municipal bridges
Urban elevated roads, overpasses, river/road crossing bridges, and landscape bridges.
3. Rail transit bridges
Elevated sections and station bridges of subways, light rails, and urban railways.
Passenger dedicated lines and high-speed railway bridges (same series TJQZ) with speeds of 200-350km/h.
4. Other engineering structures
Large span spatial structures such as steel structure corridors, trusses, trusses, and roofs of sports halls/exhibition centers.
Bridges in high-intensity earthquake zones (with seismic, tensile, and horizontal resistance capabilities).
2、 Applicable scenario characteristics
Strong bearing capacity: The vertical bearing capacity covers 1000kN-45000kN, suitable for large-span and heavy-duty bridges.
Flexible rotation: The spherical structure achieves universal rotation, adapting to the complex turning requirements of curved, sloping, and inclined bridges.
Displacement adaptation: divided into fixed (GD), longitudinal (ZX), transverse (HX), and bi-directional (SX) movable types, to meet the displacement caused by temperature and load.
Strong horizontal capacity: According to JT/T 873 standard, the horizontal bearing capacity can reach 10% -20% of the vertical capacity, suitable for multi lane and high traffic bridges.
Durable and reliable: no rubber pressure, aging resistance, high and low temperature resistance (-40 ℃~+70 ℃), long service life.
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