| 摘要 |
PROBLEM TO BE SOLVED: To provide a beam structure to efficiently connect connection beams to each other. SOLUTION: In the beam structure of a precast beam P provided between adjacent columns, the precast beam P is split in its longitudinal direction, connection parts 4D, 4E of split beams 4A, 4B, 4C to each other form a lap joint in which projecting reinforcements 6A opposite to each other of connection ends of the split beams 4A, 4B, 4C are lapped in the positionally deviated condition in the radial direction of the precast beam P, and integrated with each other with a concrete, and expanded fixing parts 6B of the diameter larger than the outside diameter of the reinforcements are provided on the projecting reinforcements.
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