With the development of transportation industry, PTFE board More and more skew bridges are used. The slope of beam bridge is 1-4%, and the slope of some special bridges is designed to be about 8%. More factors have been added to the design criteria for bracing due to the skew or gradual rise of the skew bridge. Part of the force perpendicular to the deck acts on the shear plane of the support. If the design cannot meet these forces, if necessary, the support will produce excessive deformation, which will affect its performance and life. teflon The slab is used for the bridge with a longitudinal slope of 1%<1<3%. After the rubber bearing is installed, the wedge steel plate (or wedge concrete block) consistent with the longitudinal fracture of the bridge is placed between the bottom of the beam and the support, or the bottom of the beam end is treated accordingly to make the support frame flat, so as to prevent the shear effect of the vertical reaction force component on the support frame. These methods bring a lot of trouble to the construction and installation of bridge supports, and sometimes the treatment is not ideal. Inclined bearings came into being. At present, bearing manufacturers can process and manufacture inclined plate rubber bearings with different specifications, slopes and elastic moduli (shape coefficients) according to design and use requirements. The installation and construction of bevel bearing is based on ordinary flat rubber bearing, and the installation method of support is acceptable. There is no need to prepare wedges or conduct corresponding treatment at the bottom of the beam, which saves labor and materials and simplifies construction. Bridge inclined plate bearing GPZ pot rubber bearing is a new type of bridge support, which is composed of steel and rubber. It has the characteristics of large bearing capacity, large horizontal displacement and flexible rotation. Compared with other similar types of pot bearings and cast steel roller bearings, it has the characteristics of light weight, compact structure, simple structure, low building height and machinability. Convenient, steel saving and cost reduction. It is an ideal bearing for long-span bridges. The bearing capacity can reach the level of 20000~50000 KN, which can basically meet the needs of domestic large-scale bridge construction, and the service life can reach more than 50 years.

Plate rubber bearings can be divided into: ordinary plate rubber bearings (GJZ series, GYZ series, TCYB series) and tetrafluoroethylene plate rubber bearings (GYZF4 series, GJZF4 series, TCYBF4 series) and other products. Structure standard of highway plate rubber bearing This standard is applicable to rectangular and circular flat rubber bearings for highway bridges with a bearing capacity of less than 5000kN. The polytetrafluoroethylene plate and circular plate rubber bearings used for highway bridges are mainly applicable to highway bridges with a bearing capacity of less than 5000kN. Plate rubber bearings are produced in accordance with the standards of the People's Republic of China's transportation industry standard JT/T4-2004 Plate Rubber Bearings for Highway Bridges.