Laminated elastomeric bearing features reinforced steel plates that are sandwiched between layers of rubber through vulcanization and molding manufacturing process to form a homogeneous unit. Not only do these embedded steel plates limit excessive expansions, but also increase transversal, longitudinal and compressive strength as well as rotation capability comparing with plain elastomeric bearings.
Normally, different shapes of laminated elastomeric bearings suit different types of applications. For example, rectangular bearings are ideal for orthogonal bridges, while round bearings are suitable for oblique crossing and cylindrical pier bridges. Round bearings with spherical surfaces are the best choice for curved bridges with 3% to 5% slopes.
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