| 摘要 |
PURPOSE:To easily and quickly perform construction work by a method in which plural iron bars are attached to an iron bar holder metal to form a prefabricated iron bar cage. CONSTITUTION:Through holes 7 are formed in the side wall of a steel tube 1, iron bars 3 are inserted into the steel tube 1, and filling concrete 2 is placed for fixation. In such a structure, plural iron bars are attached to an iron bar holder metal 4 to form a prefabricated iron bar cage. Therefore, plural iron bars 3 can be inserted into the steel tube 1 and fixed by the concrete2, so that the steel tube 1 can be exactly connected with the iron bars 3 without the need for welding on site. |
