FIELD: bridge building, particularly to construct bridge span structures in rivers or in flood-plains in deep water.
SUBSTANCE: scaffold comprises pile foundation, grillage to connect piles of foundation and one or several supports arranged in grillage. Grillage and piles are made as inventory floating system consisted of one or several pontoons or piles arranged in vertical tubular guiders formed in each pontoon. Each vertical tubular guide is provided with two guiding grooves. Each pile comprises two diametrically opposite steel support bars to provide vertical pontoon displacement along piles immersed in ground. Device for pontoon vertical displacement is made as walking jacks, which cooperate with steel support rods and pontoon deck eyebolts. Adjacent pontoons of grillage consisted of two pontoons or more are connected one to another by connection platforms.
EFFECT: reduced building material consumption and decreased time, reduced labor and power inputs, non-interference in water pool ecology.
3 cl, 1 dwg
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Authors
Dates
2006-04-27—Published
2004-02-10—Filed