Fully fabricated self-expanding variable-diameter reinforcement cage with constrained sheath structure and application method of fully fabricated self-expanding variable-diameter reinforcement cage

Abstract

The invention discloses a fully fabricated self-expanding variable-diameter reinforcement cage with a constrained sheath structure. The variable-diameter reinforcement cage comprises a plurality of vertical ribs, one or more ring-shaped fixators and a plurality of sets of ribs corresponding to the ring-shaped fixators; each set of ribs with the same number as the multiple vertical ribs is movablyfixed to the outer circle of the corresponding ring-shaped fixator; in each set of ribs, one ends of the ribs are movably connected with the positions, with the same height, of the corresponding vertical ribs, and the other ends of the ribs are movably connected to the outer circles of the corresponding ring-shaped fixators; the ring-shaped fixators sleeve a main rib or an axial rod, the peripheries of the vertical ribs of the reinforcement cage are wrapped with constraint sheets, and the constraint sheets are rigid or flexible and surround or fully surround a plurality of parts on the periphery of the variable-diameter reinforcement cage; the peripheries of the vertical ribs are wrapped with the rigid or flexible constraint sheets firstly, and the exteriors of the constraint sheets are provided with annular or spiral hoops to serve as latitude lines on the peripheries of the vertical ribs; or the peripheries of the vertical ribs are wrapped with the annular or spiral hoops or meshes firstly to serve as the latitude lines on the peripheries of the vertical ribs, and then the latitude lines are wrapped with the rigid or flexible constraint sheets.

Description

technical field [0001] The invention relates to a fully-assembled self-expanding variable-diameter reinforcement cage with a constraining sheath structure and its application method, which is used for compressive and pull-resistant variable-diameter reinforcement cage expansion piles or anchors, especially in pile foundations or anchors Skeleton - a variable-diameter steel cage that constrains the structure. Background technique [0002] Anti-floating and anti-tension anchor rods are widely used in buildings. Secondly, foundation piles play a foundation role in building construction. According to the force principle of the foundation, they can be roughly divided into friction piles and load-bearing piles. With the continuous development of engineering technology, new steel piles and reinforced concrete piles are used more and more widely in engineering construction. The characteristics of different pile types are also different. [0003] Classified according to bearing pro...

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Problems solved by technology

[0009] The object of the present invention is to propose a variable-diameter steel cage with a restraint structure and its application method, which can be used for the skeleton of a variable-diameter steel cage in a compressive or pull-resistant anchor or pile, that is, a variable-diameter steel cage with a restraint structure is used to form The skeleton of the pile of the enlarged head at the bottom of the pile (anchor) has the bottom of the enlarged head pile (anchor) with variable-diameter steel cage skeleton, and the skeleton of the enlarged head is prepared by utilizing the variable-diameter steel cage, that is, using the steel cage structure, which has constraints The variable-diameter reinforcement cage and the application method of the structure make it possible to put the reinforcement cage into the drill hole without obstruction, and the steel bars of the reinforcement cage will not be deformed or damaged, ensuring that the variable-diameter reinforcement cage can be smoothly placed into the bottom of the pile hole, improving construction efficiency and making The variable-diameter steel cage is released and becomes an enlarged steel cage skeleton to prepare the foundation skeleton of the enlarged head of the pile, which is applied to the preparation of the enlarged head of the head of all expanded piles, and is integrated with the pile body on the upper part of the expanded pile as much as possible to overcome The existing pile foundation has the disadvantages of solid bearing capacity and poor integrity, and reduces costs

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