Application manner null of stigma of brattice aerial column

摘要

PROBLEM TO BE SOLVED: To reduce the number of high elevation work and contrive a common use or conversion of materials and members when constructing a column head of an overhanging erection girder bridge. ;SOLUTION: A section steel bent structure 10 is set up on the head 1 of a bridge pier where a vertical beam and a horizontal beam 12 are erected on the bent structure 10. From the respective beams, there hang a crane and a hoist material. Support materials, scaffoldings and equipment materials assembled on the ground are hoisted and shifted to and provided on the hoist material 15. The section steel of the bent structure 10 is employed for a concrete reinforcing material as it is and converted as a horizontal beam of an erection work car.;COPYRIGHT: (C)1997,JPO