| 摘要 |
PURPOSE:To reinforce a structure which comprises a girder material and girder- to-girder concrete in such a fashion that the dead load of the structure may not be increased. CONSTITUTION:In a structure which installs a plurality of concrete-made girder materials 1 drawn near in the transverse direction and integrates each of the girder materials 1 put together by girder-to-girder concrete 2, a PC steel material insertion hole 3, which slopes upward at the top of the girder materials 1 on both ends from the bottom of the girder materials 1 on both ends, is bored on both ends of the girder-to-girder concrete 2. Then, a portion near the PC steel material insertion hole 3 located at the top on both ends of the girder materials 1 is chipped off thereby installing a recessed part 4. An anchor plate 5 at a right angle to the end of the PC steel insertion hole 3 is installed inside the recessed part 4. What is more, a PC steel material 6 is inserted into the PC steel material insertion hole 3 and the anchor plate 5. Then, the PC steel material 6 is tensely fixed with a fixture device 7 and then the recessed part 4 is filled up with a non-contractile curing material 8. |
