| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete void member capable of facilitating a bar arrangement work of void holding reinforcement rods and an installation work void member while ensuring the holding property.SOLUTION: A void member 3 is embedded in a concrete structure 1. An upper plane 20 or a lower plane 30 of the void member 3 forms three or more grooves 21, 31 or a single groove 22, 32. An arrangement area of the grooves expands in a central area and both side areas in a direction along the groove width in the planes 20 and 30.SELECTED DRAWING: Figure 1 |
