Aqueduct formwork supporting system supported on bailey beam and construction method

Abstract

The invention discloses an aqueduct formwork supporting system supported on a bailey beam and a construction method, and belongs to the technical field of aqueduct supporting. The construction methodcomprises the steps that construction preparation is conducted; packway steel pipes are mounted; packway plates are laid; sole timber is arranged; bottom formworks are mounted; outer side formworks are mounted; reinforcement cages are bound, and inner side formworks are erected; concrete is poured, a lower chord of the bailey beam is provided with a hoisting screw rod for hoisting the packway steel pipes, and the packway steel pipes are provided with walking wood plates; the aqueduct bottom formworks are fixed to an upper chord of the bailey beam through high-strength long screw rods and supported through bottom formwork supports, and the upper chord of the bailey beam and the bottom formwork supports jointly form a stable plane truss structure; and the aqueduct bottom formworks and an outer formwork are connected through double steel hinges, and formwork supporting is assisted through opposite-pull screw rods and supporting steel pipes. According to the aqueduct formwork supporting system supported on the bailey beam and the construction method, a construction packway is arranged below the bailey beam, operation of constructors is convenient, aqueduct bottom formworks and the bailey beam are connected firmly, the aqueduct bottom formworks and the outer formwork are connected through the steel hinges, the whole formwork supporting system cannot be laterally bent and twisted, and good economic and technical benefits are achieved.

Description

technical field [0001] The invention relates to an aqueduct formwork system supported by Bailey beams and a construction method, which is mainly applicable to the construction of an aqueduct with complex geological and soil conditions, and it is not suitable to carry out the aqueduct construction with full formwork support of steel pipes. Background technique [0002] At present, aqueducts are commonly used structures for water conveyance projects across valleys, depressions, and river ditches. Generally, the height of the pier body is 20-33m, and the single-span length of the aqueduct body is 20-30m. When the aqueduct passes through paddy fields and river ditches, it is not advisable to set up formwork support methods such as steel frame tube scaffolding and mobile formwork. [0003] In the traditional aqueduct formwork construction process, the lower part of the Bailey beam needs to be equipped with a full support platform. The aqueduct formwork structure is not only poor ...

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Problems solved by technology

[0003] In the traditional aqueduct formwork construction process, the lower part of the Bailey beam needs to be equipped with a full support platform. The aqueduct formwork structure is not only poor in stability, but also complex in process, long in construction period and large in investment

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