| 摘要 |
PURPOSE:To reduce reinforcement work by a large margin and eliminate conventional inner-outer scaffolding and form work at the time of constructing a high bridge pier of hollow cross section made of concrete so as to make bridge pier construction labor-saving, to shorten a construction period and to reduce the cost. CONSTITUTION:A bridge pier body 1 of hollow cross section is formed into RC structure using high strength concrete 5 with all-screw PC steel bars 2 as axial reinforcements so as to reduce reinforcement work by a large margin and to attain light weight. At the time of construction, an embedded inner form 4 of foam styrene or the like is installed, and then steel blocks A provided with the all-screw PC steel bars along the axial direction of the bridge pier are built up. The outer form 22 of a self-rising type form 20 is installed, and concrete 5 is placed between the embedded inner form 4 and the outer form 22. The installation of the embedded inner form, the assembly of the steel blocks, the rising installation of the self-rising type form, and the placing of concrete are repeated to construct up to the specified height, and conventional inner-outer scaffolding and form dismantling work is eliminated. |
