Civil bearings are used in large structures to allow for movement between structural members to relieve stress. In bridges, these components are between the deck of the bridge and the piers. This allows for controlled movement to reduce stresses in such structures. Movement can also be generated through thermal expansion and contraction. This type of inevitable movement is dependent on weather and seasonal changes. It also helps the structure better absorb unpredictable movement such as seismic activity, which could otherwise lead to failure.
Pot bearings in concrete and steel structures accommodate relative movement between parts of the structure. Post-tensioning strain can cause stress on such a structure, which is addressed by installing these components in the applicable locations to minimise the resistance forces experienced by the structure to prevent failure. We offer pot bearings that go about this function in the most efficient manner. By combining proven concepts with modern manufacturing methods and advanced materials, we deliver quality choices to suit your needs.
Polytetrafluoroethylene (PTFE) is a well-known polymer used in pot-bearing manufacturing and exhibits unique low-friction properties. The friction coefficient of a polymer refers to the ease with which it allows movement between itself and a polished surface. PTFE delivers the lowest friction coefficient at specific high pressure for optimal performance. This polymer is ideally suited to civil applications in structures that need to accommodate movement to avoid overstressing the structure. Space requirements are minimised by using a design that focuses on relatively high contact pressures against the structure. As a result, this ensures lower friction values.
Elastomers are used in pot bearings to act as a semi-viscous fluid to accommodate angular displacement. They allow for slight rotation on all three axes, which means that these components must be installed the correct way. This aspect is crucial to the performance of these parts within a steel or concrete structure. The installer must ensure that precise contact between the component and the structure is guaranteed. If there is any type of void above or below the bearing, it can cause the component to become damaged and not function correctly. Therefore, horizontal and vertical alignment is key when installing them to optimise functionality and performance.
Technoslide is your first choice for civil bearings. Our products and services give your business the ability to install and maintain these structural components by the book. Please peruse our website for further details or contact us with any enquiries regarding our products. Choose us for all your bearing needs today and take advantage of quality components for civil projects.