| 摘要 |
PROBLEM TO BE SOLVED: To rationalize the process for forming a hollow slab structure, and omit the use of a temporary frame (a form) used conventionally when a hollow slab floor is formed. SOLUTION: A hollow slab structure consists of a hollow slab forming member 1, and concrete 7. The hollow slab-forming member 1 consists a long material of an elbow shaped cross section. The hollow slab-forming member 1 uses one of a horizontal side as a base part 2, and uses the other vertical side as a pipe supporting part 3. A semicircle shaped pipe half member 4 is integrally formed on an upper end side of a side faced to the base part 2 of the pipe supporting part 3, and a reinforcing rib 5 is provided on the other end of the base part 2. The hollow slab forming members 1 of a plurality of groups are arranged back to back with the pipe supporting part 3 in a widthwise direction, and a framework of a slab union is formed combining the reinforcing ribs 5 by overlapping them to form the hollow slab structure by placing concrete on the framework.
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