Basin type rubber bearing structure principle_standard specification_installation video

Basin type rubber bearing structure principle_standard specification_installation video

QPZ series bridge basin-type rubber bearings belong to a kind of highway bridge basin-type bearings. Its quality reaches the advanced level of similar international products in the late 1980s. This product adopts intermediate guidance, novel structure, good stress performance, so it is particularly suitable. Rubber support for curved bridges and wide bridges with large side bends. 13313081215 Manager Wang

QPZ basin type rubber bearing structure principle:

a. Multi-directional movable rubber bearing (DX) stainless steel plate and F4 polytetrafluoroethylene plate are lubricated with silicone grease to reduce friction resistance.

b. The longitudinal movable rubber bearing (ZX) adopts intermediate guiding measures, which can adapt to the needs of bending and deformation of the beam body.

c. The longitudinal movable rubber bearing (ZX) adopts the middle guide. Compared with the groove-shaped upper bearing plate commonly used in China, it reduces the weight and reduces the number of steel castings.

d. A dust-proof enclosure is installed in the rubber support of the QPZ series pots, which can reduce the intrusion of dust and prolong the service life of the product.

About QPZ series basin type rubber bearing standard specification:

a. The multi-directional movable support (DX) has the performance of vertical rotation and longitudinal and lateral sliding.

b. The vertical movable support (ZX) has the performance of vertical rotation and vertical sliding.

c. The fixed support (GD) has vertical rotation performance.

According to the applicable temperature range of QPZ series basin rubber bearings

a. Normal temperature bearing: suitable for -25 ℃ --- 60 ℃, code C

b. Cold-resistant bearing: suitable for -40 ℃ --- 60 ℃, code F

QPZ highway bridge basin-type rubber bearings are a kind of highway bridge bearing products produced on the basis of TPZ series railway basin-type rubber bearings. It adopts intermediate guidance, novel structure and good stress performance, so it is particularly suitable for curved bridges and Use on wide bridges with large side bends. The QPZ highway bridge basin-type rubber bearing is a longitudinal movable bridge bearing product. It adopts intermediate guidance, novel structure, and good bearing performance, so it is particularly suitable for bearings on curved bridges and wide bridges with large side bends. . Based on the experience of using TPZ series basin-type rubber bearings, we have researched and designed a middle guide groove type one-way movable rubber bearing product.

QPZ series basin-type rubber bearings are suitable for highway, municipal and railway bridges and other structural projects below the seven-degree earthquake zone (including seven degrees). This basin-type rubber bearing has a good vertical bearing capacity. Under the vertical design load, the compression deformation of the bearing is less than 2% of the total height of the bearing, and the radial deformation of the upper ring mouth is less than 0.5 of the outer diameter of the ring %, The residual bearing does not exceed 5% of the total deformation, and also has a good horizontal bearing capacity. The horizontal bearing capacity of the fixed bearing in all directions and the non-slip direction of the unidirectional movable bearing is greater than the vertical bearing 10% of the carrying capacity. The rotation angle of this support is greater than 0.02rad. After adding 5201 silicone grease, the design friction coefficient of the room temperature movable bearing is 0.03 smaller; after adding 5201 silicone grease, the design friction coefficient of the cold resistant movable bearing is 0.06 smaller. . Because the TPZ, GPZ and other series of rubber bearings are both guide groove type movable rubber bearings on both sides, when used on a multi-span continuous, the beam body is bent sideways due to the sunlight temperature stress, and the guide groove type unidirectional activities on both sides The support is easy to produce binding force, and the middle guide groove type one-way movable support can drive the middle steel liner of the support to make a small amount of rotation when the beam is bent sideways. Side restraints can be avoided.