| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bridge structure which can be simply constructed at a low cost by a method with little destruction of nature, without being an obstacle in connecting two opposite banks between which is not the shortest distance, and without unnecessarily forming an ineffective area. <P>SOLUTION: A bridge structure connects opposite banks p, f in a state of traversing an extending space between the opposite banks. If a separation distance between places p1, f1 connected by the bridge is longer than the shortest distance between the opposite banks along the extending space, the bridge structure is provided with a crossing bridge 11 connected to the connection place f1 in the opposite bank f and disposed along the shortest distance, and an additional bridge 12 which connects the crossing bridge to the connection place p1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
