Puristusluje

Puristusluje is a Finnish term that translates directly to "compression bolt" or "compression stud." In construction and engineering, it refers to a type of fastener designed to withstand significant compressive forces. These fasteners are often used in applications where structural elements are subjected to loads that push them together.

The design of a puristusluje typically involves a robust shaft and threads that allow for tight and secure assembly. Unlike tensile bolts which are primarily designed to resist pulling forces, puristusluje fasteners are optimized to handle the forces that try to crush or shorten the connected materials. This can include structural connections in bridges, heavy machinery, or load-bearing walls.

The materials used for puristusluje vary depending on the required strength and environmental conditions. High-strength steel is common, often with protective coatings to prevent corrosion. The precise dimensions and thread pitch are critical for ensuring proper load distribution and preventing failure under compression. The installation process for these fasteners is also specialized, often requiring specific torque values or tensioning methods to achieve the desired compressive effect. Their primary function is to maintain the integrity of structures by resisting the inward forces they are designed to bear.