| 摘要 |
PURPOSE: A height controlling device for a slab form of a steel box bridge is provided to automatically control the height without a fixing process after adjusting desired height. CONSTITUTION: A height controlling device for a slab form of a steel box bridge comprises a multi-beam(200), a sawtooth actuator(300), and a screw thread movable unit(400), and a rock volt. The multi-beam guides the movement of the screw thread movable unit. The sawtooth actuator forms height adjusting unit(330) so that a user controls height. A movable unit protrusion(405) and a movement unit fastening hole(420) are formed in the screw thread movable unit. The rock volt fixes an inner beam(70) coupled with the mega beam. |
