- 材质:
- 铸钢
- 承载力:
- 1100
- 产地:
- 河北衡水
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Universal seismic-resistant spherical steel bearing
Universal earthquake-resistant spherical steel bearing sold at special price by the manufacturer Type spherical steel bearing
Universal anti-seismic spherical steel bearing
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Universal anti-seismic spherical steel bearing
Features
Different from ordinary anti-pull ball hinge bearings, shock-absorbing anti-pull ball hinge bearings not only focus on connection and limiting, but also pay attention to the protection of the structure during the force release process. When the support is subjected to an impact load, the buffer device can slow down the impact force and reduce displacement acceleration through flexible contact, thereby protecting the support itself and the main body of the steel structure. Secondly, a stainless steel plate and a polytetrafluoroethylene slide plate are arranged between each relative displacement surface. The relative sliding between the two achieves displacement. This greatly reduces the friction coefficient and allows flexible movement between the components to avoid the occurrence of crawling.
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Installation of two universal anti-seismic spherical steel bearings
The connection form of the installation plan of the bearing should be specifically agreed with the structural designer to ensure that the upper and lower structures are in contact with the bearing 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 the top of the column along the column axis to the column foot (as the width of the column section increases, the configuration of the horizontal stirrup section increases. The amount 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 design needs.
If welding is used to connect the bearing and the embedded steel plate, cooling must be taken Measures or the method of intermittent welding on opposite sides to prevent the steel parts of the support from overheating and damaging the PTFE plate rubber sealing ring and silicone grease.
Before installation, the elevation and levelness of the substructure should meet the design requirements. Bearing The height difference between the four corners 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 will meet the design requirements. Wait for After the construction of the beam body is completed, the temporary connectors should be removed immediately.
When installing the supports, the connectors between the upper support plate and the lower support plate must be installed. After the support installation is completed, remove them and install the upper support immediately. Dust cover (the dust cover is a rubber plate and is installed by the on-site construction unit).
Maintenance of the three-dimensional anti-seismic spherical steel bearing
During the use of the bearing, check the maintenance regularly every time Once.
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 Check whether the sealing ring is cracked or aged.
Turn the fixing nut and 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. If the height change exceeds ㎜, it should be overhauled.
Check the integrity of the anti-rust paint. If it falls off, use emery cloth to grind out the steel body and show the metallic luster and then repaint.
After special circumstances occur (such as earthquake damage) Strong winds, etc. should promptly check the above content.