| 摘要 |
PURPOSE: A hollow slab unit and a construction method of a slab using the same are provided to reduce costs required for manufacturing multiple lightweight balls by integrating the lightweight balls with each other. CONSTITUTION: A hollow slab unit(100) comprises a cage and a lightweight ball module. The cage comprises multiple guide units and connecting bars. The guide units comprise first and second unit guides. The connecting bars connect the guide units to each other. The lightweight ball module comprises first and second lightweight balls(170,180) and connections. The first lightweight balls are moved relative to the first unit guides. The second lightweight balls are moved relative to the second unit guides. The connections integrally connect the first and second lightweight balls with each other. When concrete is placed, the first and second lightweight balls are moved along the first and second unit guides to reduce buoyancy. |
