| 摘要 |
Disclosed are a manufacturing method for a separately built-up type long span prestressed precast concrete beam, which integrates segments divided in the width and length direction and is separately manufactured by applying post-tension to the segments, and a construction method for a precast concrete structure which uses the separately built-up type long span prestressed precast concrete beam manufactured by the same. According to the present invention, the manufacturing method for the separately built-up type long span prestressed precast concrete beam which has width (b), height (h), and overall length (L) comprises a step of manufacturing four segments, wherein each segment has one half of the overall width and one half of the overall length; a step of manufacturing two assembly segments which are integrated with each other in the length direction to have the same as the overall length and one half of the overall width by applying pre-stress after installing a first tendon inside a sheath pipe installed inside a section of each segment in the length direction, and tensing and fixating the first tendon; and a step of fitting-up two assembly segments by fastening the segments with bolts at constant intervals in the length direction of the assembly segments after holding the assembly segments on a column by multiple tower cranes, wherein the bolts penetrate the segments. |
