GPZ (2009) pot type rubber bearing

First, let's introduce the naming code and performance of GPZ series bearings
GPZ series mainly includes three categories: fixed bearing, with vertical bearing capacity and rotational performance, code named GD; Unidirectional movable bearing, with vertical bearing, rotation and single direction sliding performance, code named DX; Bidirectional movable bearing, with vertical bearing capacity, rotation and longitudinal and transverse sliding performance, code SX
The code format of GPZ basin support is: , GPZ XXX SX DX Gd (f), where GPZ represents highway basin bearing, which is stipulated in the national standard
XXX is a number, which represents the vertical bearing capacity of basin bearing, in kn
SX DX GD is three types of bearing
F represents the cold resistance of bearing
Generally, the bearing suitable for - 40 - + 60 ℃ is cold resistant bearing, code f, and the applicable temperature of normal temperature bearing is - 25 - + 60 ℃, which is not indicated in the bearing code
​ Basin bearing GPZ (Ⅱ) basin bearing is a new type of bridge bearing composed of steel components and rubber
Compared with other basin bearings and cast steel roller shaft bearings of the same type, it has the characteristics of large bearing capacity, large horizontal displacement, flexible rotation, light weight, compact structure, simple structure, low building height, convenient processing and manufacturing, steel saving and cost reduction, It is an ideal bearing suitable for large collapse bridges
The bearing capacity of this series of bearings is 31 levels, with a bearing capacity of 0
8mn-60mn, which can meet the needs of large bridge construction

  In this standard series, the horizontal bearing capacity of the fixed bearing in all directions and the non sliding direction of the unidirectional movable bearing shall not be less than 10% of the rigid bearing capacity of the bearing
The horizontal bearing capacity of seismic bearing shall not be less than 20% of the rigid bearing capacity of the bearing
The rotation angle of the support shall not be greater than 0
02rad After lubrication with 5201 silicone grease, the minimum design friction coefficient of normal temperature movable bearing is 0
03 Performance, installation and use method of basin rubber bearing: basin rubber bearing can be divided into fixed bearing and movable bearing, and movable bearing can be divided into unidirectional movable bearing and multidirectional movable bearing
The main function of steel basin is to transfer the vertical load of bridge span structure to pier and abutment (or pier column) , The position of the support is fixed and the deformation of the rubber plate is restrained at the same time
Because the pressure bearing rubber plate is sealed in the steel basin, it is in a three-dimensional stress state, so it has high bearing capacity
Basin type rubber bearing has the advantages of large horizontal displacement, flexible rotation, light weight, compact structure, simple structure, low building height, convenient processing and manufacturing, saving steel and reducing cost
It is an ideal bearing suitable for large collapse bridges
The bearing capacity of this series of bearings is 31 levels, with a bearing capacity of 0
8mn-60mn, which can meet the needs of large bridge construction