IMMERSED BRIDGE SYSTEM OF COMPLEX TYPE AND THE CONSTRUCTION METHOD THEREOF

摘要

PURPOSE: A complex underwater bridge and a construction method thereof are provided to support heavy structure like a large container although the upper part of the underwater bridge sags by bearing the gravity and the buoyancy and maintaining mutual balance between gravity and the buoyancy. CONSTITUTION: A complex underwater bridge(100) is installed underwater in a tunnel shape. The complex underwater bridge comprises a tunnel(105), a floater(110), a support part(130), and a supporting part. The space on which a vehicle applies a live load is formed inside the tunnel. The floater is positioned at the outside of the tunnel and provides the buoyancy to the tunnel. The support part is positioned at the lower part of the tunnel and the floater. The support part supports the gravity and the live load delivered from the tunnel and the floater. The supporting part is located on the upper side of the support part.