| 摘要 |
The present invention relates to an anchor pin to combine an old concrete structure and a new concrete structure and, more specifically, relates to an anchor pin to combine an old concrete structure and a new concrete structure which enables the old concrete structure and the new concrete structure to be more combined when installing a new concrete structure in a conventional concrete structure which is pre-installed. The present invention provides the anchor pin to combine the old concrete structure and the new concrete structure, comprising: a head unit composed of a circular head having a predetermined thickness and a plurality of perforated holes consistently formed on the head; and a nail shaped perforating unit connected to the head unit. As the perforated holes are formed on the head unit, concrete is able to be pressed in through the perforation; thereby combining more firmly the old concrete structure and the new concrete structure. |
