BRIDGE FALLING PREVENTIVE DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a lightweight and inexpensive device to mitigate/reduce an impact load by absorbing and dispersing the impact energy such as earthquake. SOLUTION: Fixed parts (4) are formed respectively in a bridge (2) and a bridge support (5), and a fiber long body (7) is spread between the fixed parts (4). The middle of the long body (7) is held by a pinching means (8) connected to the fixed parts (4a). One end of the long body (7) from the pinching means (8) is a free end (13) and the other end is connected to the fixed part (4b). The pinching force of the pinching means (8) is made weaker than the fracture strength to settle within such a range that the long body can move in the pinching means (8). A locking section (14) is formed in a position separated by a specified dimension from the pinching means (8) in the free end (13) side of the long body (7). COPYRIGHT: (C)2004,JPO