ROTARY CONSTRUCTION METHOD OF BRIDGE HAVING HIGH BRIDGE PIER

摘要

PURPOSE: To reduce the construction term and construction cost greatly and reduce work at an elevated place greatly when a bridge having high bridge pier is constructed. CONSTITUTION: After a bridge pier 2 is constructed by a jack-up construction method at an installation position of the bridge pier 2, a bridge beam of which a central part is supported on the bridge pier 2 is assembled in the vertical direction along the bridge pier 2 by the jack-up construction method by using the bridge pier 2. The thus assembled bridge beam 3 is rotated by using a winch and a wire rope with an upper section of the bridge pier as a support point to construct it in the horizontal direction.