Year1
- 材质：
- 铸钢
- 承载力：
- 1300
- 厂家：
- 广润
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Tensile spherical steel bearings
Tensile spherical steel bearings sold at special prices by the manufacturer
Tensile spherical steel bearings Seat
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Characteristics of a tensile spherical steel bearing
Material of the bearing
_ Stainless steel plate
_Polytetrafluoroethylene
Skateboard rubber seals, etc. are all implemented in accordance with the standards. Cast steel is implemented in accordance with the standards. The anti-seismic spherical steel bearing can be rotated in all directions and can be loaded in all directions. It can well meet the transmission, rotation and movement requirements of the reaction force generated by various loads on the superstructure (such as dead load, live load, wind and earthquake force, etc.) to ensure that the resultant force of the reaction force is concentrated, clear and safe. reliable.
Anti-seismic balls
_ Shaped steel
The bearings 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 destroyed, the existence of such bearings will not Catastrophic consequences such as falling beams and falling frames occur (generally speaking, the support is a weak link, and it is easy for beams and frames to fall under the action of strong earthquake forces. The strength and ductility of this type of bearing are higher than the structure itself, so it is particularly suitable for high-rise buildings. The fortifications in seismic areas with high intensity have the ability to withstand seismic intensity levels.
The static stiffness of tensile spherical steel bearings compared with other bearings (such as plate rubber bearings, basin rubber bearings and other spherical seismic bearings Under the huge self-weight and inertial force, the bearing only produces minimal deformation, which can reliably guarantee the building.
The tensile spherical steel bearing has a large load-bearing area through spherical force transmission and is optimized using several materials. Therefore, compared with other hinge structure supports (swing bearings and roller bearings), the volume and height are greatly reduced, the weight is light and easy to install, and the cost is lower than steel supports with the same bearing capacity.
Tensile resistance The spherical steel bearing is suitable for a wide temperature range (°C and has good durability and does not use rubber
_ rubber
There is no impact of rubber aging on the rotational performance of the bearing under pressure.
The tensile spherical steel bearing is particularly suitable It is more suitable for long-span spatial structures, large-span bridges, wide bridges, curved bridges, cable-stayed bridges, ramp bridges, especially in areas with high seismic intensity, while other types of bearings are difficult to meet the requirements.
Tensile spherical steel bearings have anti- The tensile structure can reduce the weight of the bridge end.
The tensile spherical steel bearing has developed a series of parametric products that can meet the various technical requirements of different users and can be designed and processed according to user requirements.
Pictures
Installation of secondary tensile spherical steel bearings
The connection form of the installation plan of the spherical bearing should be specifically agreed with the structural designer to ensure reliable connection and functional performance of the upper and lower structures and the bearing.
The number of the lower reinforced concrete column shall not be lower than grade.
The reinforcement in the column should refer to the research and analysis results during the design of this support, that is, within the height range from the top of the column along the axis of the column to the foot of the column (for the column The increase in the configuration of the horizontal stirrup section as the cross-section width increases is determined based on the bearing capacity analysis results.
The movable bearing sets an offset value between the upper bearing plate and the sliding plate according to the design needs.
The bearing and If welding is used to connect the embedded steel plates, cooling measures or intermittent welding of opposite sides should be taken to prevent the support steel parts from overheating and damaging the PTFE plate rubber sealing ring and silicone grease.
The lower part should be made so that it can be used before installation. The elevation and levelness of the structure meet the design requirements. The height difference between the four corners of the support should 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 support is installed in place The welding of the bottom plate and the embedded steel plate meets the design requirements. The temporary connectors should be removed immediately after the beam construction is completed.
When installing the supports, the connectors between the upper support plate and the lower support plate must be installed and ready for support. After the base is installed in place, remove it and install the dust cover immediately (the dust cover is a rubber plate
The on-site construction unit is responsible for installing it).
Maintenance of three-tensile spherical steel bearings
During the use of the bearing, check and maintain it regularly.
Check whether the support and the upper and lower connecting parts are damaged. Check whether the bolts
are sheared or loose, 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 condition of the PTFE plate. When the height change exceeds mm, it should be overhauled.
Check the integrity of the anti-rust paint. If it peels off, use emery cloth to grind out the steel body and give it a metallic luster, then repaint it.
After special circumstances occur (such as earthquakes, destructive winds, etc.), the above contents should be checked promptly.
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