| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor board structure using a precast concrete plate which has a huge floor board, on which heavy aircraft and heavy equipment travel, which can be easily constructed and which can correspond with local bending moment on a pole head without any increase in costs. SOLUTION: In the floor board structure, a plurality of precast concrete plates 20, 21 are placed on the steel beam 12, which is supported at the top end of a strut 11, in back and forth, and side ways, and a continuous concrete floor board is constituted by integrating the space between the precast concrete plates 20, 21. Tendons 43, 44 are continuously inserted to the space between the precast concrete plates 20 for the pole head which constitute a predetermined area on the strut 11 and its periphery. Then by straining the precast concrete plates 20, the space between the precast concrete plates 20 for the pole head are integrated. The space between the precast concrete plates 21 in other parts is integrated by burying a joining reinforcing iron bar, which is projected from the end surface of the concrete plate, with stuffing concrete. COPYRIGHT: (C)2007,JPO&INPIT
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