Where are plate rubber bearings used on highway bridges
Plate type rubber bearings rely on rubber elastic deformation to achieve vertical load-bearing, horizontal displacement, angular deformation, and shock absorption and buffering. They are the most commonly used type of bearings for highway bridges, divided into two categories: ordinary plate type and PTFE skateboard type. The scenarios are as follows:
Plate type rubber bearings rely on rubber elastic deformation to achieve vertical load-bearing, horizontal displacement, angular deformation, and shock absorption and buffering. They are the most commonly used type of bearings for highway bridges, divided into two categories: ordinary plate type and PTFE skateboard type. The scenarios are as follows:
1、 Mainstream application scenarios
1. Small and medium span bridges on highways (core scenario)
Simple supported beam bridges (hollow slab beams, T-beams, small box beams) with a span of ≤ 20m, as well as conventional bridges on rural roads, county and township roads, provincial roads, and national roads, are widely used.
2. Municipal roads and bridges
Urban main roads, ramp bridges, pedestrian overpasses, and non motorized vehicle bridges, taking into account both vehicular and pedestrian loads.
3. Elevated and Interchanges
Urban elevated, high-speed interchanges, and cast-in-place/prefabricated simply supported bridge sections for overpasses, adapted to beam expansion and turning displacement.
4. Culverts, passages, and small arch culverts
Bridge and culvert integrated structure, box culvert, arch type small bridge, bear the load and deformation of the upper structure.
2、 Segmented specialized scenarios
1. Exclusive scene for PTFE skateboard type plate support
Bridges with large horizontal displacement of the beam body: long simply supported beams, continuous beam transition sections, and sections with large bridge deck expansion and contraction; Also used for curved bridges and inclined bridges to reduce sliding friction.
2. Old bridge renovation, maintenance and reinforcement project
Replacement of old bridge bearings, remediation of defects, renovation of bridge decks, and replacement of aging and damaged bearings.
3. Temporary bridges and construction bridges
Temporary access bridges and emergency bridges for construction sites are easy to install and cost-effective.
4. Landscape bridge and pedestrian bridge in the park
Parks, scenic spots, and residential landscape bridges have low loads and high requirements for noise reduction and shock absorption.
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