Year1
- 材质：
- 铸钢件
- 发货期限：
- 15天
- 价格：
- 300
Excellent quality, one-way sliding spherical bearing has the highest reputation!
Hengshui Haotong Engineering Rubber Co., Ltd.
< . Grid shock-absorbing spherical steel bearing
Professional manufacturer, with world-class equipment,
< . Grid shock-absorbing spherical steel bearing Seat
Self-operated import and export rights, popular domestically and exported overseas
. Grid shock-absorbing spherical steel support
Materials include stainless steel plate, PTFE slide plate, rubber sealing ring, etc. It shall be implemented in accordance with the provisions of 3-Standard, in which the elastic shock absorbing parts shall be implemented in accordance with the technical conditions of 3-automobile leaf spring. Cast steel shall be implemented according to B/3- and B/ standards.
The shock-absorbing spherical steel bearing can rotate in all directions and bear load in all directions, and can well meet the reaction forces generated by various loads on the superstructure (such as dead load, live load, wind, earthquake force, etc.) The transmission, rotation and movement requirements ensure that the reaction force is concentrated, clear, safe and reliable.
The shock-absorbing spherical steel bearing must withstand tension, compression, and shear (lateral) forces. Under the action of huge random earthquake forces, as long as the upper and lower structures themselves are not damaged, such bearings will not occur. Disastrous consequences such as falling beams and falling frames (generally speaking, the support is a weak link. Under the action of strong earthquake forces, falling beams and falling frames are very easy to occur, and the strength and ductility of such supports are higher than the structure itself) , so it is particularly suitable for fortification in high-intensity earthquake areas and has the ability to withstand earthquake intensity levels.
. Compared with other bearings (such as plate rubber bearings, basin rubber bearings, etc.), the shock-absorbing spherical steel bearing has a large static stiffness. Under the action of huge self-weight and inertial force, , the support will only produce minimal deformation, which can reliably guarantee the building.
. The shock-absorbing spherical steel bearing transmits force through the spherical surface, has a large force-bearing area, and uses an optimized combination of several materials. Therefore, compared with other hinge structure bearings (swing bearings, roller bearings), Its volume and height are greatly reduced, it is light in weight, easy to install, and its cost is lower than that of steel bearings with the same bearing capacity. . The shock-absorbing spherical steel bearing has a wide applicable temperature range (-~+℃) and good durability. It does not use rubber to bear pressure, and there is no impact of rubber aging on the rotation performance of the bearing.
. Shock-absorbing spherical steel bearings are particularly suitable for large-span space structures, long-span bridges, wide bridges, curved bridges, cable-stayed bridges, and ramp bridges. They are especially suitable for areas with high seismic intensity, while other types The support is difficult to meet the requirements.
. The shock-absorbing spherical steel bearing has a tensile structure, which can reduce the pressure on the bridge end.
. Parameterized and serialized products have been developed for shock-absorbing spherical steel bearings, which can meet various technical requirements of different users and can be designed and processed according to user requirements.
. Grid shock-absorbing spherical steel bearing
Main technical performance
, the friction coefficient of the bearing is
, the horizontal shear force of the bearing is greater than the vertical bearing capacity
The pull-out and tensile resistance of the bearing is the vertical bearing capacity
, the vertical bearing capacity of the bearing is -, divided into grades
, the bearing rotation angle is
, the applicable temperature range of the bearing: -℃~+℃
See the table for the support displacement. Item - :r
Maximum longitudinal displacement (㎜) - :r
Maximum transverse displacement (㎜) Support reaction force - :r
:r
- :r < br/> :r
:r
- :r
~- :r
- :r
- :r
- :r
- :r
- :r
- :r
- :r
- :r
- :r
- :r
~- :r
- :r
- :r
3- :r
3- :r
3- :r
- :r < br/>- :r
3- :r
- :r
- :r
- :r
The displacement amount can be changed according to the needs of the project, and the user can change it when ordering. Just make a request, and the longitudinal movable supports can be arranged laterally according to the displacement.
. Grid shock-absorbing spherical steel bearing
Installation
The installation plan and connection form of the spherical bearing should be specifically agreed with the structural designer to ensure that the upper and lower structures are in perfect contact with the bearings. reliable connection and functionality.
The number of the lower reinforced concrete column shall not be lower than grade 1.
The internal reinforcement of the column should refer to the research and analysis results during the design of this support, that is, within the height range from .b to .b from the top of the column along the column axis to the column foot (b is the column cross-section width), To increase the configuration of the horizontal stirrup section, the amount of increase is determined based on the bearing capacity analysis results.
. The movable support sets an offset value between the upper support plate and the sliding plate according to the design requirements.
If the connection between the support and the embedded steel plate is welded, cooling measures must be taken, or the method of intermittent welding on opposite sides can be used to prevent the support steel parts from overheating and damaging the polytetrafluoroethylene plate, rubber sealing ring and Silicone grease.
Before installation, the elevation and levelness of the substructure should meet the design requirements. The height difference between the four corners of the support shall not be greater than mm.
The center line of the support should coincide with the center line of the main beam and the installation line of the lower structure.
After the supports are installed in place, the welding of the base plate and the embedded steel plate meets the design requirements. After the construction of the beam body is completed, the temporary connections should be removed immediately.
When installing the support, the connection between the upper support plate and the lower support plate must be installed. After the support is installed, remove it and install the dust cover immediately (the dust cover is a rubber plate , the same on-site construction unit is responsible for installation).
Maintenance of grid shock-absorbing spherical steel bearings
During the use of the bearings, check and maintain them regularly.
. Check whether the support and the upper and lower connecting parts are damaged, check whether the bolts are sheared or loose, and whether the welds are cracked, etc.
Check the dust accumulation in the dust cover and remove the dust.
. Check the rubber sealing ring for cracks and aging.
, Turn the fixing nut, clean it and re-oil it to avoid rust.
. Check the height change of the support itself. This change reflects the wear of the PTFE plate. When the height change exceeds mm, it should be overhauled.
. Check the integrity of the anti-rust paint. If there is any peeling off, use emery cloth to grind out the steel body and give it a metallic luster before repainting.
After special circumstances occur (such as earthquakes, destructive winds, etc.), the above contents should be checked in time.
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