Cast in place beam basin type rubber bearing a bridge basin type rubber bearing a seismic basin type bearing aqz spherical bridge bearing manufacturer
Installation method of cast-in-place beam basin type rubber bearing: 1. The bearing shall be carefully leveled during assembly in the factory, and the upper and lower bearing plates shall be aligned, and the bearing shall be connected as a whole with connecting plates. 2. Before the installation of the support, the site shall check whether the connection condition of the support is normal, and the connecting bolts of the upper and lower support plates shall not be loosened arbitrarily. 3. Before the installation of the support, chisel the surface of the bearing pad stone, remove the sundries in the anchor bolt hole, install the formwork for grouting, and wet the surface of the bearing pad stone with water. 4. Install the support in place, wedge the four corners of the support with steel wedge, level the support, adjust the support to the design elevation, and leave a gap of 20-30mm between the support bottom and the support pad stone.
5. After carefully checking the center position and elevation of the support, use high-strength non shrinkage material for grouting. 6. Adopt gravity grouting method, the same as Article 7 of installation of basin type rubber bearing for prefabricated simply supported box girder. 7. After the final setting of grouting materials, remove the formwork and steel wedge, check if there is any leakage, make up the leakage, fill in the space after the steel wedge is pulled out, and tighten the anchor bolt of the lower support plate. 8. After pouring beam concrete, remove the connecting steel plates of upper and lower bearing plates in time, and install bearing coaming.
Brief introduction of basin bearing of bridge: basin bearing is a new type of bridge bearing composed of steel members and rubber. Compared with other similar types of basin bearing and cast steel roller bearing, it has the advantages of large bearing capacity, large horizontal displacement, flexible rotation, light weight, compact structure, simple structure, low building height, convenient processing and manufacturing, steel saving, cost reduction, etc Point, is suitable for the use of large bridge support is ideal. At present, the bearing capacity of this series of bearings is 31 grades and the bearing capacity is 0.8mn-60mn, which can meet the needs of large-scale bridge construction.
Application scope of seismic basin type bearing: it is suitable for long-span bridges with rubber bearing force, and it will pass through the basin type rubber bearing of bridges. Important examples and rubber bearings can be divided into solid rubber bearing, rubber bearing and a movable one-way movable rubber bearing according to their working characteristics. Rubber bearing strong plate rubber, rubber base plate, pressure bearing rubber plate, rubber sealing ring, fastening ring and rubber bearing steel anchor bolt and other components, it is important to suffer vertical force and angle, and longitudinal and transverse force under the bridge. The movable rubber bearing plate rubber bearing, rubber base plate, pressure bearing rubber plate, rubber sealing ring, steel hoop, PTFE plate, stainless steel plate and rubber bearing anchor bolt are used to support the vertical force and angle of rubber bearing, and can meet the needs of longitudinal and transverse displacement of the bridge.