| 摘要 |
PROBLEM TO BE SOLVED: To provide a void slab capable of controlling deformation and stress of the slab, and its construction method. SOLUTION: A tendon 2 is placed inside a steel pipe 1 in a manner that both ends of the tendon 2 are anchored to an inner surface part of the steel pipe 1. A strut abutting section 5 is provided at the center of the tendon 2. A female screw part 7 is arranged in a steel pipe wall at a position facing the abutting section 5. A front end of a strut 8 screwed into the female screw part 7 abuts against the abutting section 5. By adjusting the screwing amount of the strut 8, the tensile force of the tendon 2 is regulated, to control the deformation and the stress of the void slab 10. COPYRIGHT: (C)2006,JPO&NCIPI
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