Hebei supply truss ball joint tensile support KLQZ sliding truss ball joint support pipe truss fixed ball joint support function and performance

Description :

　　The truss structure supports, PTFE sliding plates, rubber sealing rings, etc. are all implemented according to the JT391-1999 standard, and the elastic shock absorbers are implemented according to the QCn29035-91 technical conditions for automotive steel plate springs. Cast steel shall be executed in accordance with GB/T11352-1989 and GB/T14408-1993 standards.

　　Bidirectional sliding bearings are capable of universal rotation, universal bearing, and can effectively meet the transmission, rotation, and movement requirements of reaction forces generated by various loads on the upper structure (such as dead loads, live loads, wind, seismic forces, etc.), ensuring that the reaction force is concentrated, clear, safe, and reliable.

　　The support of truss structure needs to withstand tensile, compressive, and shear (transverse) forces. Under the action of huge random seismic forces, as long as the upper and lower structures themselves are not damaged, the existence of such support will not cause catastrophic consequences such as beam and frame falling (generally speaking, support is a weak link, and under strong seismic forces, extreme beam and frame falling occur, and the strength and ductility of such support are higher than those of the structure itself). Therefore, it is particularly suitable for fortification in high-intensity earthquake areas and has the ability to resist seismic intensity of level 9.

　　Compared with other bearings such as plate type rubber bearings and pot type rubber bearings, the static stiffness of QKGZ spherical seismic bearings is higher. Under the huge self weight and inertial force, the bearings only produce minimal deformation, which can reliably ensure the stability of the building.

　　Bidirectional sliding bearings transmit force through spherical surfaces, have a large force area, and use optimized combinations of several materials. Therefore, compared with other hinge structure bearings (swing bearings, roller bearings), their volume and height are greatly reduced, their weight is light, they are easy to install, and their cost is lower compared to steel bearings with the same bearing capacity.

　　Bidirectional sliding bearings have a wide temperature range (-40~+70 ℃) and good durability performance; No rubber compression is used, and there is no impact of rubber aging on the rotational performance of the bearing.

　　Bidirectional sliding bearings are particularly suitable for large-span spatial structures, large-span bridges, wide bridges, curved bridges, cable-stayed bridges, ramp bridges, especially in high-intensity earthquake zones, while other types of bearings are difficult to meet the requirements.

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• Truss ball joint tensile support