CN217106297U

CN217106297U - Node structure of reinforcing construction unloading device

Info

Publication number: CN217106297U
Application number: CN202220489075.0U
Authority: CN
Inventors: 黄旭刚; 余鑫涛; 谈诗文; 王卓; 杨文峰
Original assignee: Hunan Zhongteng Civil Engineering Technology Co ltd
Current assignee: Hunan Zhongteng Civil Engineering Technology Co ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-08-02
Anticipated expiration: 2032-03-03

Abstract

The utility model discloses a consolidate construction uninstallation device's node structure, divide structure upper end, the structure lower extreme that forms including demolising shear force wall or frame column intensity not foot, evenly placed a plurality of dry concrete steel columns between structure upper end and the structure lower extreme, every concrete steel column passes through the draw hook group and is connected with the steel reinforcement cage in the structure. The utility model utilizes the concrete steel column to support the disassembly section, does not need to set up a support system outside the disassembly section for unloading, and is more suitable for a narrower construction environment; the utility model discloses a hook group is with the reinforcing bar and the concrete steel column welding of original wall body for the concrete steel column is whole with the formation frame of the reinforcing bar of original wall body, promotes the bulk strength of structure, can reduce the predetermined calculation length of concrete steel column, increases the bearing capacity of single steel concrete steel column.

Description

Node structure of reinforced construction unloading device

Technical Field

The utility model relates to a building structure technical field especially relates to a consolidate construction uninstallation device's node structure.

Background

With the rapid development of the economy of China, high-rise residences are spread in various cities and towns in China. The phenomenon of insufficient concrete strength of the shear wall is more or less caused by the influence of local commercial mixed production level and engineering construction working medium control level. The reinforcing of the enlarged section and the external bonding reinforcing which are widely accepted by the industry have a plurality of adverse effects on the later use of the house. Meanwhile, when the deviation of the concrete strength is large, the reinforcing method cannot meet the design requirement.

The existing commonly used wall replacement adopts a sectional construction scheme, and the specific construction process flow comprises the following steps: erecting a temporary support system → dismantling concrete → finishing reinforcing steel bars → recovering wire pipes → erecting formwork → pouring grouting material → dismantling formwork and maintaining.

The key point of replacement construction is to set up a temporary support system. The horizontal component is firmly supported through the temporary support system so as to ensure the construction safety. The existing temporary support system needs to be erected on the periphery of a disassembly position, and when the peripheral environment is narrow, construction is inconvenient; and at present, the steel pipe is mostly supported independently in the conventional dismounting mode of full-section replacement, and the structural strength is not high.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a consolidate construction uninstallation device's node structure, divide structure upper end, the structure lower extreme that forms including demolising shear force wall or frame column intensity foot, evenly placed a plurality of dry concrete steel columns between structure upper end and the structure lower extreme, every concrete steel column is organized through the draw hook and is connected with the steel reinforcement cage in the structure.

Furthermore, the draw hook group comprises at least two draw hook layers, each draw hook layer comprises at least two draw hooks, and the concrete steel column is welded with the longitudinal bars of the reinforcement cage through the two draw hooks arranged diagonally on the horizontal plane.

Furthermore, at least two drag hook layers are symmetrically arranged along the length direction of the longitudinal bar and are welded with the concrete steel column.

Furthermore, the concrete steel column comprises a steel pipe, and a dense concrete column is poured into the steel pipe.

Furthermore, steel plates are arranged at the contact positions of the two ends of the concrete steel column and the upper end and the lower end of the structure respectively.

Furthermore, a certain number of horizontal ribs are welded on the longitudinal ribs at uniform intervals.

The utility model has the advantages that: the utility model utilizes the concrete steel column to support the disassembly section, does not need to set up a support system outside the disassembly section for unloading, and is more suitable for a narrower construction environment; the utility model discloses a hook group is with the reinforcing bar and the concrete steel column welding of original wall body for the concrete steel column is whole with the formation frame of the reinforcing bar of original wall body, promotes the bulk strength of structure, can reduce the predetermined calculation length of concrete steel column, increases the bearing capacity of single steel concrete steel column.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic plan view of the concrete steel column of the present invention disposed along a horizontal plane;

fig. 3 is a detailed view of the internal structure of the present invention.

Detailed Description

The technical solution of the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence with the upper, lower, left and right directions of the drawings, and do not limit the structure.

As shown in fig. 1-3, the utility model provides a consolidate construction uninstallation device's node structure, the utility model discloses uninstallation that both had been applicable to the shear force wall is consolidated and is also applicable to the frame post is consolidated, and this embodiment uses the shear force wall structure as an example: taking one floor of the building as an example, a shear wall is arranged between a floor top plane 7 and a floor bottom plane 8 of the building, firstly, the part with insufficient strength of the shear wall is removed, the original reinforcement cage is reserved, the part with insufficient strength of the shear wall or the frame column is removed to form a structure upper end 1 and a structure lower end 5, then, a plurality of dry concrete steel columns 3 are uniformly arranged between the structure upper end 1 and the structure lower end 5, and each concrete steel column 3 is connected with the reinforcement cage in the structure through a pull hook group.

The draw hook group in this embodiment comprises at least two draw hook layers, and every draw hook layer includes at least two draw hooks (first draw hook 10 and second draw hook 12 are shown respectively), and concrete steel column 3 is through two draw hooks of diagonal setting and the vertical muscle 13 welding of steel reinforcement cage on the horizontal plane.

At least two drag hook layers in this embodiment are along 13 length direction symmetries of longitudinal bar and set up and weld with concrete steel column 3. The pull hook group and the concrete steel column 3 are welded to form a whole, so that the calculated length of the steel pipe can be reduced, and the bearing capacity of a single steel pipe is increased.

The concrete steel column 3 in this embodiment includes a steel pipe, and a solid concrete column is poured into the steel pipe. The steel pipe is bigger than conventional steel pipe, and inside slip casting increases vertical bearing capacity and stability (being equivalent to steel pipe concrete).

In the present embodiment, steel plates (shown as a first steel plate 2 and a second steel plate 4) are provided at the contact portions between the two ends of the concrete steel column 3 and the structure upper end 1 and the structure lower end 5, respectively.

The horizontal ribs 9 with a certain number are welded on the longitudinal ribs 13 at uniform intervals. And lacing wires 11 are arranged between the longitudinal ribs and used for controlling the distance between the longitudinal ribs 13.

The utility model discloses a construction steps as follows:

the present embodiment takes a shear wall as an example:

firstly, carrying out stress calculation, grouping the walls with unqualified strength, and planning the dismantling sequence;

sequentially grooving each section of wall body in the wall body according to the dismantling sequence, and placing concrete steel columns 3 in the grooves to serve as supports;

chiseling out the concrete of other parts of the unqualified wall body section, and reserving the steel bars of the original wall body;

according to the actual construction condition, jacks can be arranged between the concrete steel columns 3 which are arranged in parallel to exert jacking force in advance so as to ensure the supporting reliability of the concrete steel columns 3 and ensure the effective transmission of the load of the contact surface of the steel pipes and the concrete;

the concrete steel column 3 is connected by steel plates (shown as a first steel plate 2 and a second steel plate 4 respectively) and then the jack is dismounted;

a plurality of tie bars 11 are additionally arranged between the longitudinal bars and used for controlling the space between the longitudinal bars 13;

a plurality of horizontal ribs 9 are welded along the length direction of the longitudinal ribs to strengthen the structure;

welding the reinforcing steel bars of the original wall body and the concrete steel columns 3 through the draw hook group, so that the concrete steel columns 3 and the reinforcing steel bars of the original wall body form a frame whole;

supporting a formwork at the disassembly position;

pouring high-grade micro-expansive concrete at the formwork supporting position;

according to the design specification, removing the formwork after the formwork is supported for a certain time;

and curing the concrete after the form removal.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a consolidate construction uninstallation device's node structure, its characterized in that, includes structure upper end, the structure lower extreme that demolish shear force wall or frame column intensity not foot branch and form, evenly placed a plurality of dry concrete steel columns between structure upper end and the structure lower extreme, every concrete steel column is connected with the steel reinforcement cage in the structure through the hook group.

2. The node structure of a reinforced construction unloading device of claim 1, wherein: the draw hook group comprises two at least drag hook layers, and every drag hook layer includes two at least drag hooks, and the concrete steel post is through the drag hook of two diagonal settings and the vertical muscle welding of steel reinforcement cage on the horizontal plane.

3. The node structure of a reinforced construction unloading device of claim 2, wherein: at least two drag hook layers are symmetrically arranged along the length direction of the longitudinal bar and are welded with the concrete steel column.

4. The node structure of a reinforced construction unloading device of claim 1, wherein: the concrete steel column comprises a steel pipe and a dense concrete column filled in the steel pipe.

5. The node structure of a reinforced construction unloading device of claim 4, wherein: and steel plates are arranged at the contact positions of the two ends of the concrete steel column and the upper end and the lower end of the structure respectively.

6. The node structure of a reinforced construction unloading device of claim 2, wherein: the horizontal ribs with a certain number are welded on the longitudinal ribs at uniform intervals.