Movable type connecting device for reverse construction method steel tube column and reinforcement cage

Abstract

The invention discloses a movable type connecting device for a reverse construction method steel tube column and a reinforcement cage, belongs to the an engineering device of the underground space development reverse construction method foundation pit engineering field, and particularly relates to a movable type connecting device for the steel tube (structure) column and the reinforcement cage. The movable type connecting structure is characterized in that a reinforcement sleeve is fixedly arranged on the upper part of the reinforcement cage, wherein the upper port of the reinforcement sleeveis fixedly equipped with a protecting aligning plate with a middle hole; the steel tube column passes through the middle hole of the protecting aligning plate; a pair of upper and lower spaced limiting plates is fixedly arranged on the outer wall of the upper part of the steel tube column; the protecting aligning plate is positioned between upper and lower limiting plates, and the dimension of themiddle hole of the protecting aligning plate is smaller than diameters of the upper and lower limiting plates; and the reinforcement cage and the reinforcement sleeve are positioned in an all-steel protective barrel in a construction state. The movable type connecting device is simple in structure, is high in operation precision, is convenient to operate, and can realize construction in a pile hole with or / without underground water, so that connecting, hoisting and mounting of the steel tube (structure) column and the reinforcement cage can be solved, and regulating and positioning for perpendicularity in a steel tube (structure) column core mounting process are also convenient.

Description

technical field [0001] The invention belongs to the engineering device in the field of underground space development reverse method foundation pit engineering, and specifically relates to a movable connection device between a steel pipe (structure) column and a steel cage. Background technique [0002] In recent years, more and more reverse construction methods have been adopted in the development of ultra-deep underground spaces. The construction of the foundation pit is reversed, that is, the foundation pit support wall is first constructed along the sideline of the basement of the building or around the foundation pit, and the engineering piles and column piles inside the foundation pit are constructed at the same time, and then the top floor of the basement is constructed as a horizontal support, and then layer by layer Excavate the earthwork and pour the underground structure of each layer until the base plate is sealed. The reverse construction method has the advantag...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art and traditional construction equipment, and provide a movable connection device between steel pipe (structure) columns and steel cages in the underground space development method. The device has high operation accuracy and is easy to operate. It can be constructed with or without groundwater, which can solve the connection, hoisting and placement of steel pipe (structure) columns and steel cages, and facilitate the adjustment and positioning of the verticality of the steel pipe (structure) column center during the placement process

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