Hanging type auxiliary device for binding extension pile foundation reinforcement cage

Abstract

The utility model discloses an auxiliary device for binding a hanging type extension pile foundation reinforcement cage, which solves the problems of limiting the upper end position of a main reinforcement bound in a pile foundation hole by the extension reinforcement cage and controlling the relative position of a stirrup on the main reinforcement. According to the technical scheme, the auxiliary device comprises an auxiliary support part, pile foundation reinforcement cage lengthened main reinforcements and pile foundation reinforcement cage stirrups, wherein the auxiliary support part is composed of a main reinforcement fixing plate, a fixing plate bolt, an auxiliary reinforcement support, a reinforcement cage stirrup sling chain and a stirrup sling chain support. The stirrups are sequentially fixed to the reinforcement cage stirrup lifting chain according to the designed interval, and the reinforcement cage stirrup lifting chain is hung on the stirrup lifting chain support. And the other ends of the lengthened main reinforcements of the pile foundation reinforcement cage are uniformly distributed and fixedly connected with the inner hole wall of the stirrup sling chain bracket through main reinforcement fixing plates and fixing plate bolts. The method has the advantages that the pile foundation reinforcement cage lengthened main steel bars are accurately limited, the pile foundation reinforcement cage stirrups and the reinforcement cage lengthened main steel bars can be conveniently bundled in pile foundation holes, the auxiliary time for prolonging reinforcement cage bundling is shortened, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to an auxiliary device for bundling a large-diameter extended pile foundation steel cage. Background Art

[0002] When pouring concrete for large-diameter deep-hole pile foundations, there are two ways to tie the steel cage. One is to tie the steel cage once on the ground, and after the pile foundation hole is completed with the retaining wall construction, the steel cage is hoisted into the pile foundation as a whole for concrete pouring. The other is to tie the steel cage inside the pile foundation hole after the pile foundation hole is completed with the retaining wall construction.

[0003] For large-diameter deep-hole pile foundations, it is difficult to ensure the accurate position of the steel cage in the pile foundation hole when the steel cage is tied up on the ground at one time, and its practical application is limited. Especially after the concrete pouring of the pile foundation is completed, due to design changes and other reasons, it is necessary to extend the already poured large-diameter pile foundation upwards. At this time, there are two ways to achieve the connection between the extended section steel cage and the poured part of the steel cage. Method 1: tie the extended section large-diameter pile foundation steel cage on the ground and hoist it into the pile foundation hole as a whole to form a one-to-one connection with the main steel bars of the poured part of the pile foundation; Method 2: After the main steel bars of the extended section large-diameter pile foundation are connected one by one in the pile foundation hole, the stirrups are tied with the main steel bars of the pile foundation to form an extended steel cage that is integrated with the poured part of the steel cage.

[0004] In the first method, when the extended steel cage in the pile foundation hole is connected to the cast steel bars one by one, it is difficult to achieve a one-to-one fixed connection of each main bar due to errors in length and positioning. In the second method, after the extended large-diameter pile foundation main steel bars are connected to the cast pile foundation main steel bars one by one in the pile foundation hole, the upper end of the main steel bar needs to be positioned, and it is difficult to control the position of the stirrups on the extended steel cage on the main steel bar. The construction efficiency of the pile foundation main steel bar is low and the workload is large.

[0005] In short, it is difficult to tie the extended section large-diameter pile foundation steel cage inside the pile foundation hole after the pile foundation hole is protected, resulting in low construction efficiency, long construction period and high construction cost. Utility Model Content

[0006] In order to solve the technical problems of difficulty in connecting the extended steel cage with the cast part of the steel cage when tying it on the ground at one time and difficulty in controlling the position of the stirrups on the main steel bars caused by tying the extended steel cage in the pile foundation hole, the utility model discloses a hanging auxiliary device for tying the extended large-diameter pile foundation steel cage. After the main steel bars of the pile foundation steel cage are connected and fixed in a limited position, the stirrups of the pile foundation steel cage are hung at a predetermined position in the pile foundation hole, so as to realize convenient and rapid tying of the extended steel cage in the pile foundation hole.

[0007] The technical solution adopted by the utility model to achieve the purpose of the invention is: an auxiliary device for tying a hanging extended pile foundation steel cage, which comprises: an auxiliary support part, an extended main steel bar of the pile foundation steel cage and stirrups of the pile foundation steel cage.

[0008] The auxiliary support part comprises: a main steel bar fixing plate, fixing plate bolts, an auxiliary steel bar support, a steel bar cage hoop reinforcement chain and a hoop reinforcement chain support.

[0009] The stirrup chain support is supported on the ground of the pile foundation hole, the group of pile foundation steel cage stirrups are fixed on the steel cage stirrup chain in sequence according to the designed spacing, and the steel cage stirrup chain is hung on the stirrup chain support;

[0010] One end of the pile foundation steel cage lengthened main steel bar is coaxially fixedly connected to the pile foundation steel cage main steel bar through a connecting head, and the other end of the pile foundation steel cage lengthened main steel bar is evenly fixedly connected to the inner hole wall of the stirrup suspension chain bracket through a main steel bar fixing plate and fixing plate bolts.

[0011] The beneficial effects of the utility model are as follows: the pile foundation steel cage lengthened main steel bar is accurately limited, and the pile foundation steel cage hoops are convenient for bundling the pile foundation steel cage lengthened main steel bars in the pile foundation hole, which greatly reduces the auxiliary time for bundling the steel cage in the pile foundation hole and improves construction efficiency.

[0012] The utility model is described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] Attached Figure 2 For attachment Figure 1 Schematic diagram of direction A.

[0015] Attached Figure 3 This is a schematic diagram of the utility model in use.

[0016] In the attached drawings, 1-1. main steel bar fixing plate, 1-2. fixing plate bolts, 1-4. steel bar cage stirrup chain, 1-5. stirrup chain bracket, 1-51. T-shaped annular groove, 2. pile foundation steel bar cage stirrups, 3. pile foundation steel bar cage extended main steel bar, 4. connecting head, 5. pile foundation steel bar cage main steel bar. DETAILED DESCRIPTION

[0017] The invention discloses an auxiliary device for bundling a hanging extended pile foundation steel cage, which comprises an auxiliary support part, an extended main steel bar of the pile foundation steel cage and stirrups of the pile foundation steel cage.

[0018] The auxiliary support part includes: a main steel bar fixing plate 1-1, fixing plate bolts 1-2, a steel bar cage hoop reinforcement chain 1-4 and a hoop reinforcement chain support 1-5.

[0019] The stirrup chain bracket 1-5 is supported on the ground of the pile foundation hole, and the group of pile foundation steel cage stirrups 2 are fixed on the steel cage stirrup chain 1-4 in sequence according to the designed spacing, and the steel cage stirrup chain 1-4 is hung on the stirrup chain bracket 1-5.

[0020] One end of the pile foundation steel cage extended main steel bar 3 is coaxially fixedly connected to the pile foundation steel cage main steel bar 5 through the connecting head 4, and the other end of the pile foundation steel cage extended main steel bar 3 is evenly fixedly connected to the inner hole wall of the stirrup chain bracket 1-5 through the main steel bar fixing plate 1-1 and the fixing plate bolts 1-2.

[0021] When the utility model is used, firstly, a group of pile foundation steel cage stirrups 2 are fixed on the steel cage stirrup suspension chains 1-4 in sequence according to the designed spacing, and the steel cage stirrup suspension chains 1-4 are in the pile foundation hole and suspended on the stirrup suspension chain brackets 1-5. The stirrup suspension chain brackets 1-5 are supported on the ground of the pile foundation hole.

[0022] A group of pile foundation steel cage extension main steel bars 3 are arranged one by one in the pile foundation steel cage hoop 2 ring, one end is coaxially fixedly connected with the pile foundation steel cage main steel bars 5 through the connector 4, and the other end is evenly fixedly connected with the inner hole wall of the hoop chain bracket 1-5 through the main steel bar fixing plate 1-1 and the fixing plate bolt 1-2. The construction personnel bundle the pile foundation steel cage extension main steel bars 3 with the pile foundation steel cage hoop 2 in the pile foundation hole to complete the construction of the extended pile foundation steel cage.

[0023] In the embodiment of the utility model, a T-shaped annular groove 1-51 is provided on the inner hole wall of the stirrup chain bracket 1-5, and the fixing plate bolt 1-2 is slidably arranged in the T-shaped annular groove 1-51. The fixing plate bolt 1-2 slides along the T-shaped annular groove 1-51, which can ensure that a set of pile foundation steel cage lengthened main steel bars 3 are fixed at any position of the inner hole wall of the stirrup chain bracket 1-5.

Claims

1. Auxiliary device for bundling the hanging type extended pile foundation reinforcement cage, the auxiliary device includes: The auxiliary support part, the pile foundation steel cage lengthened main steel bars and the pile foundation steel cage stirrups are characterized by: The auxiliary support part comprises: a main steel bar fixing plate (1-1), fixing plate bolts (1-2), a steel bar cage hoop reinforcement chain (1-4) and a hoop reinforcement chain bracket (1-5); The stirrup chain bracket (1-5) is supported on the ground of the pile foundation hole, the group of pile foundation steel cage stirrups (2) are fixed on the steel cage stirrup chain (1-4) in sequence according to the designed spacing, and the steel cage stirrup chain (1-4) is hung on the stirrup chain bracket (1-5); One end of the pile foundation steel cage extended main steel bar (3) is coaxially fixedly connected to the pile foundation steel cage main steel bar (5) via a connector (4), and the other end of the pile foundation steel cage extended main steel bar (3) is evenly fixedly connected to the inner hole wall of the stirrup chain bracket (1-5) via a main steel bar fixing plate (1-1) and fixing plate bolts (1-2).

2. The auxiliary device for tying the hanging extended pile foundation reinforcement cage according to claim 1 is characterized in that: A T-shaped annular groove (1-51) is provided on the inner hole wall of the stirrup chain bracket (1-5), and the fixing plate bolt (1-2) is slidably arranged in the T-shaped annular groove (1-51).

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