| 摘要 |
PURPOSE: A fall prevention structure of a bridge beam is provided to prevent fall of a bridge due to lateral force of a flood and an earthquake and to improve economical efficiency and workability. CONSTITUTION: A fall prevention structure of a bridge beam(100) is composed of a side plate(10), a non-shrinkage mortar part(50), a base plate, and a support arm(20). The side plate is fixed to the base plate with an anchor bolt(11). The side plate is attached to both end sides of the bridge beam. The non-shrinkage mortar part is formed by applying non-shrinkage mortar on a pier(300) corresponded to the side plate. Plural bolt holes(10a) are formed in the base plate. A stopper(40) is formed in front and rear sides of the base plate. The support arm is composed of a support plate(22), a strut plate(24), and a connection piece(26). The support plate is positioned between stoppers so that the movement of the support plate is restricted. The lower part of the strut plate is welded to the support plate so that the strut plate is vertically installed in the support plate. The strut plate is horizontally fixed to the side plate by welding. The connection piece horizontally connects between strut plates. |
