CONSTRUCTION METHOD OF BRIDGE SECTION SIDE SPAN OF MULTI-LEVEL CROSSOVER ROAD

摘要

PROBLEM TO BE SOLVED: To provide a method of reducing the term of works to thereby solve the problem that two lanes from the center are close up to cause a traffic jam during a long period of time to the completion of a multi-level crossover separation road.;SOLUTION: In the multi-level crossover road Ba composed of a bridge part 3 formed of a central span 1 and side spans 2a, 2b and approach parts 4a, 4b, a work zone 7 is formed in the central area of the road for disposing the side spans 2a, 2b, a bridge pier 8 are erected on the work zone 7, two or more unit side span blocks 10a are formed, two or more support devices 9 are disposed in the work zone 7, the two or more unit side span blocks 10a are supported by the support device 9, the unit span blocks 10a are joined to form a side span block 21, the side span block 21 is lowered and disposed on the bridge pier 8 after a steel base slab 19 is rotated substantially horizontally.;COPYRIGHT: (C)2005,JPO&NCIPI