The structural principle of the pot-type rubber bearing is that the rubber block placed in the sealed steel basin bears the vertical load of the bridge under the condition of three-way stress. At the same time, the elasticity of the rubber is used to meet the rotation of the beam end, and the horizontal displacement of the upper structure of the bridge is completed through the free sliding of the stainless steel plate welded on the upper base plate and polytetrafluoroethylene. This series of products has the advantages of reasonable structure, large bearing capacity, small deformation, large horizontal displacement, flexible rotation, and good buffering performance. It is the bearing for building continuous bridges. The pot-type rubber bearing has the advantages of 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 span bridges.
What are the installation steps of the pot rubber bearing?
1. Install the anchor column at the four corners of the support base plate.
2. Pour the support buttress and leave a section of height at the top, which is larger than the anchor column of the support;
3. Lift the support above the pad stone and correct the plane position and height;
4. Pour pad stone concrete;
5. Install 4 anchor columns on the upper part of the support;
6. Install the cast-in-place beam formwork and bind the cast-in-place beam reinforcement;
7. Pour beam concrete;
8. Remove the temporary connections on both sides of the support.
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