| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a bridge expansion joint for dispersing a transport load applied to an expansion joint according to travel of a vehicle in the lateral direction of an expansion joint member, easily and quickly allow installation, and improving durability in the bridge expansion joint installed on a road. SOLUTION: The expansion joint member 25 is, for example, the expansion joint member composed of high purity chloroprene rubber, and the surface serially forms a substantially S-shaped rib 26 as a whole. The substantially S-shaped rib 26 is constituted by combining and joining one and other arch ribs 26a and 26b, and the one arch rib 26a and the other arch rib 26b are arranged in an inversely turning arch. Thus, the whole displacement quantity is reduced, and the transport load is dispersed. COPYRIGHT: (C)2004,JPO&NCIPI |
