| 摘要 |
PROBLEM TO BE SOLVED: To efficiently construct a column head of a bridge girder on a bridge pier, in a bridge having a structure in which the bridge girder overhangs with respect to the width of the bridge pier.SOLUTION: A central part block 21 serving as a central part in a width direction of a column head is formed of concrete placed on a job site, on a bridge pier 2. A precast concrete block 23 is supported in such a manner as to overhang in a width direction of a bridge girder, from a lower part of a side surface of the central part block. The precast concrete block and the central part block are connected together by a tendon into which a tensioning force is introduced. Subsequently, the concrete 24 is placed in such a manner as to be supported by the precast concrete block joined to the central part block and brought into intimate contact with a top surface of the precast concrete block and a side surface of the central part block. |
