| 摘要 |
PURPOSE:To execute the work for an underground beam readily and with high precision, by a method wherein a precast reinforced concrete footing beam is connected to a footing in site and the connected section is surrounded with concrete cast in site. CONSTITUTION:A connecting reinforcement 7 is protruded from the upper face of a precast reinforced concrete footing beam 1, and a main reinforcement 5 and a connecting plate 6 are protruded from the side face of the footing beam 1. Then, ground between footings 3 is excavated and a groove for an underground bean is provided. Then, the connecting plate 6 for the precast reinforced concrete footing beam 1 is connected to a steel frame 4 in the footing 3, and a separate main reinforcement is connected to the main reinforcement 5 for the footing beam 1. And after a stirrup 10 is provided for the connected section between the footing 3 and the footing beam 1, concrete is cast. |
