CLAMPER FOR FIBER REINFORCED POLYMER BAR

摘要

A clamper for fiber insertion polymerization reinforcing steel is provided to prevent the damage to one part of the fiber insertion polymerization reinforcing steel extended by a tensile testing machine. A clamper for fiber insertion polymerization reinforcing steel comprises: a helical axis(50) screwed while its one side is inserted into one end of the fiber insertion polymerization reinforcing steel(1); and an axis of rotation(60) connected to the other end of the helical axis at the difference angle with the helical axis. The helical axis is formed integrally with the fiber insertion polymerization reinforcing steel. The fiber insertion polymerization reinforcing steel materially is clamped from the helical axis. The axis of rotation rotates the helical axis while rotating by the external force. The axis of rotation is manufactured separately from the helical axis. One part of the axis of rotation is enduringly fixed to the other side of the helical axis with welding. The axis of rotation is connected with the helical axis in to one body.