Liukumisnivelet

Liukumisnivelet, known in English as sliding joints or expansion joints, are mechanical components designed to accommodate linear expansion and contraction in structures like pipes, bridges, and buildings. They are particularly crucial in systems where temperature fluctuations or structural movements can induce significant stress. The primary function of a liukumisnivel is to prevent damage caused by these movements by allowing sections of a structure to move relative to each other in a controlled manner.

These joints typically consist of two overlapping or interlocking parts that can slide against each other. One part is often fixed to one section of the structure, while the other is attached to an adjacent section that is free to move. The sliding surfaces are usually lubricated or made of materials that minimize friction to ensure smooth movement. Different designs exist, including telescopic joints, bellows joints, and packed slip joints, each suited for specific applications and movement ranges.

The need for liukumisnivelet arises from the thermal expansion and contraction of materials. Metals, concrete, and other construction materials expand when heated and contract when cooled. Without the ability to absorb these dimensional changes, the accumulated stress can lead to buckling, cracking, or complete failure of the structure. Liukumisnivelet provide a necessary release for this stress, ensuring the longevity and safety of the infrastructure. They are also employed in seismic zones to absorb earthquake-induced movements.