| 摘要 |
PURPOSE:To improve efficiency at sectional placement of concrete in the breadthwise direction using a traveling form by making the ends of horizontal reinforcements arranged in the breadthwise direction protrude toward the side of the next work section, and by joining thereto the ends of the adjoining horizontal reinforcements. CONSTITUTION:With a traveling arched timbering A, for supporting a form concrete B1 is placed first to a breadth (l) on the side (a) of the whole breadth (L) making the ends of horizontal reinforcements 15 protruding in prescribed length. Then the arched timbering A for supporting the form is made to travel toward the side (b) and concrete B2 is placed thereto with the ends of the horizontal reinforcements 15 left protruding. After curing of the concrete B2, the protruding ends of the horizontal reinforcements 15 on both sides are joined together and to a space (d) left open, concrete B3 is placed. Thereby uniformed and efficient work for construction of the arched concrete can be realized. |
