VIBRATION CONTROL STRUCTURE OF VIADUCT AND CONSTRUCTION METHOD

PROBLEM TO BE SOLVED: To prevent adverse influence on a viaduct, for example, by a temperature change, while maintaining the effect of a vibration countermeasure by a reinforcing work to a cantilever in the viaduct. SOLUTION: The reinforcing work 5 supports the cantilever 34 of a unit viaduct from below, and a show part body 55h is arranged between the cantilever 34 and a receiving beam 54 of the reinforcing work 5 in a state of being compressed by preload force of 80 KN by the action of a flat jack 55d. Thus, the shoe part body 55h absorbs at least any of " static displacement in the cantilever 34 " or " static displacement in the reinforcing work 5 " generated, for example, by the temperature change, to prevent adverse influence on the viaduct when stress is generated in the cantilever 34 while maintaining the effect of the vibration countermeasure by the reinforcing work 5 to the cantilever 34. COPYRIGHT: (C)2006,JPO&NCIPI