| 摘要 |
The present invention relates to a long span pedestrian bridge using a ball joint method, capable of easily corresponding to both a live load and a static load by increasing a freedom degree of a joint and improving durability and stability of a bridge by solving the concentration of stress generated in a panel point, especially the joint of an upper chord and an inclined member, in the bridge of a lower part tensioning method. The long span pedestrian bridge comprises: the upper chord mounted on both points; the multiple inclined members located in the lower part of the upper chord, wherein the upper end is connected to the lower surface of the upper chord by a first connection member; a pair of first tensioning members connecting a point fixing unit located in the lower part of both ends of the upper chord and the lower end of the inclined member; and one or more second tensioning members connecting the lower ends of a compression member. The first connection member includes: a mounting groove unit installed on the lower surface of the upper chord and having a semi-spherical groove formed on the lower surface; and a ball forming unit forming a ball mounted on the mounting groove unit. |
