Post-tensioning wedges generally consist of four parts: anchor ring, clamp, pad and screw. They are suitable for anchor bolts used for prestressed concrete in engineering construction. They are usually used in bridge construction, pre-installed and positioned, and then poured with concrete. They are buried in the concrete at both ends, that is, the ends of the corrugated pipe, and the end faces are set to remain stable when the jack is tensioned.
The prefabricated concrete slab stress anchorage tensioning anchor system represents an advanced technology for the tensioning and anchoring processes in concrete structures. This system addresses the limitations of excessive prestress concentration and large bidirectional dimensions in traditional anchor groups, resulting in a more rational distribution of prestress and a thinner anchor head. The post-tensioning anchoring system demonstrates significant environmental benefits through its material selection, construction process, and long-term use, thereby reducing the consumption of natural resources and minimizing adverse environmental impacts. This system is widely applied in prestressed components of buildings, bridges, and other concrete structures to enhance structural strength and stability.
The Prestressed anchor wedges are critical components of prestressed anchorage systems, designed to secure prestressed steel bars or strands. They typically consist of an external steel barrel and internal wedge assemblies, which may be two- or three-piece configurations. These wedge assemblies ensure a secure fit with the anchored steel bar or strand through frictional engagement. The wedges are composed of wedge-shaped parts that anchor the steel by means of friction between the wedge structure and the surrounding medium, such as concrete or rock.
