| 摘要 |
PROBLEM TO BE SOLVED: To provide an overbridge provided so as to cross over an existing road. SOLUTION: Dead weight of a floor slab section 11 and load of a vehicle are transferred to concrete anchors 12 from the floor slab section 11, and since PC steel wires stretched between the concrete anchors 12 have compressive reaction force as tensile axial force, a pier is not required, a construction cost can be reduced, and since the construction is simple, a construction period of time can be shortened. Once the axial force is taken with the concrete anchors 12, concentrated load can be dispersed, and the dispersed load can be taken with the PC steel wires 14, diameter of one of the steel wires 14 can be thinned accordingly, and a construction cost can be reduced.
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