| 摘要 |
PURPOSE: To execute on-site work with higher efficiency and simplify the execution of the work and attain a long service life with higher strength by installing a reinforced concrete member between main girders and binding mechanically the reinforced concrete member with the main girders. CONSTITUTION: Main girders 15 constructed with structural steel are brought in a construction site and installed on a column base. Then, sheath pipes 10 are laid out between the main girders 15 so that through holes 16 preliminarily bored on webs 2 of the main girders 15 may be aligned with holes bored on a site. APC steel material 9 is arranged to penetrate a plurality of main girders 15 by way of the through holes 16 and the sheath pipes 10. Then, required reinforcing work and forming work are executed and concrete is placed so that a reinforced concrete member 8 is laid out between the main orders 15. After a desired strength is produced on the concrete thus placed, a specified tensile strength is introduced into the steel material 9 and fastened with nuts 11 fitted in the end. A concrete floor slab 7 is placed, thereby finishing work. |
