Gzz1 spherical hinge bearing manufacture

  The fixed seismic hinge bearing transmits force through the spherical surface, has a large stress area, and adopts the optimal combination of several materials
Therefore, compared with other hinge structure bearings (swing bearing and roller bearing), its volume and height are greatly reduced, light weight, easy to install, and the cost is lower compared with the steel bearing with the same bearing capacity
Features of fixed hinge bearing: 1
The material of the bearing is stainless steel plate, Teflon sliding plate, rubber sealing ring, etc
all in accordance with jt391-1999 standard,
Cast steel shall comply with GB / t11352-1989 and GB / t14408-1993
2
It can rotate and carry in all directions, and can well meet the transmission, rotation and movement requirements of reaction force generated by various loads of superstructure (such as dead load, live load, wind, seismic force, etc
), so as to ensure that the reaction force is concentrated, clear, safe and reliable
6
The fixed seismic hinge bearing has a wide temperature range (- 40 ~ + 70 ℃) and good durability; Rubber bearing is not used, and there is no influence of rubber aging on the rotational performance of the bearing
The spherical joint support transmits force through the spherical surface, and there is no necking phenomenon of force, and the reaction force acting on the upper and lower structures is relatively uniform; Hinged bearing has good seismic performance;
  The hinged bearing has the performance of resisting horizontal force to ensure that the structure will not fall off during horizontal earthquake; Hinged bearing can bear vertical load
The spherical hinge bearing can meet the requirements of rotation angle in any direction
Hinged support means that both ends of the beam are placed on the support
The support only restricts the vertical displacement of the beam, and the beam end can rotate freely
Fixed hinge support: it can rotate and cannot move horizontally and vertically
Fixed (end) support; Roll shaft support
There are three kinds of beam bridge bearings: horizontal two-way fixed bearings (i
e
fixed bearings), horizontal two-way movable bearings (or two-way movable bearings), and horizontal fixed to movable bearings (i
e
movable bearings)
Their layout depends on the width of the bridge
In narrow bridges, it is generally required to move freely along the driving direction, and the layout of various supports is shown in Figure 1A; In the wide bridge, the lateral deformation of the superstructure is also large