| 摘要 |
PROBLEM TO BE SOLVED: To provide an erection method of a bridge girder constructible in a short term.SOLUTION: The erection method of the bridge girder includes a first process for erecting a PC girder between a plurality of supports and providing the erected PC girder with a scaffolding and a guard fence, and a second process for placing concrete in a clearance between the existing PC girders and straining and anchoring steel wires between the PC girders. Temporary straining and installation of a working platform are carried out between the supports where the first process is completed, to carry out the first process between the following supports, thereby attaining short-term construction. Further, since the second process can be simultaneously executed between the plurality of supports, short-term construction can be attained. |
