ANCHORAGE ASSEMBLES AND STRUCTURES FOR PRESTRESSING ATYPICAL CONCRETE STRUCTURES

摘要

PURPOSE: A tendon anchorage apparatus for applying prestress to an atypical concrete structure and a tendon anchorage structure of an atypical concrete structure using the same are provided to enable the linear arrangement of a tendon regardless of the end angle of an atypical concrete structure. CONSTITUTION: A tendon anchorage apparatus for applying prestress to an atypical concrete structure comprises a hemispheric anchor plate(10), a steel ball(20), a wedge(30), and a wedge fixing head(40). The hemispheric anchor plate is installed on the end incline(1c) of an atypical concrete structure(1) and has a hemisphere support protrusion(12) and an anchor plate tendon insertion hole(12b). The hemisphere support protrusion is formed on one surface of a plate(11). The anchor plate tendon insertion hole penetrates through the hemisphere support protrusion. The steel ball has a steel ball tendon insertion hole(20a) and is coupled to the concave hemisphere groove(12a) of the hemisphere support protrusion. The wedge fixes a tendon(3) to the steel ball. The wedge fixing head is installed between the wedge and the steel ball, and the tendon penetrates through the wedge fixing head.