CN211973976U - Vertical joint bar structure of cavity shear wall and connection structure thereof - Google Patents

Abstract

The utility model provides a vertical joint bar structure of cavity shear force wall and connection structure thereof includes: the reinforcing steel bar cage is fixedly connected with the first leaf plate and the second leaf plate; the vertical steel bars and a part of the ladder bars and the reinforcing lacing wires are embedded in the first leaf plate and the second leaf plate; and one part of the embedded joint bar extends into a cavity formed by the first leaf plate and the second leaf plate and is fixedly connected with a tie bar and a reinforcing tie bar in the ladder bar. The disclosure also provides a vertical dowel bar connecting structure of the cavity shear wall. The embedded joint bar can ensure the production quality and correctness through a numerical control technology, and the site construction efficiency is improved.

Description

Vertical joint bar structure of cavity shear wall and connection structure thereof

Technical Field

The utility model relates to an assembly type structure field especially relates to a vertical joint bar structure of cavity shear force wall and connection structure thereof.

Background

Prefabricated cavity shear force wall component is before the installation, the connecting reinforcement between the wall board of lower floor is pre-buried about all needing to carry out in advance on every layer, pre-buried dowel bar is through inserting to reach the indirect lapped effect of reinforcing bar in the prefabricated wall board cavity of lower floor, consequently, the location of dowel bar needs comparatively accurately, in order to avoid influencing the installation of prefabricated wall board, cavity thickness is mostly 100mm in the cavity wall in reason of prefabricating, the dowel bar lower part is unable fixed during the field installation, pre-buried dowel bar is mostly fixed through the mode with floor upper portion reinforcement.

In the process of on-site construction of the embedded joint bars, positioning steel plates are additionally arranged on each layer to ensure the positioning accuracy of the steel bars, so that the labor cost, the material cost and the time cost are increased invisibly. In the construction process of a residential project, the installation and reinforcement of each layer of positioning steel plate needs 2 electric welders and 2 general workers on average, the installation and reinforcement can be completed within 0.5-1 working day, and the single-layer construction progress of the SPCS structure system is greatly influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the present disclosure provides a vertical dowel structure of a cavity shear wall and a connection structure thereof. The embedded joint bars are all annular steel bars, the embedded joint bars are directly manufactured in the production process of the prefabricated wall board, the joint bars and the prefabricated wall board are integrally manufactured and molded and transported to a construction site, the workload of the construction site is greatly reduced, and the construction progress is accelerated.

According to another aspect of the disclosure, a vertical dowel structure of a cavity shear wall is provided, which is characterized in that the vertical dowel structure is manufactured by the production method of the vertical dowel of the cavity shear wall,

the method comprises the following steps: a first leaf plate, a second leaf plate and a reinforcement cage formed by pre-embedded joint bars, reinforcing tie bars, ladder bars and vertical reinforcement bars,

the reinforcement cage is fixedly connected with the first leaf plate and the second leaf plate;

the vertical reinforcing steel bars and parts of the ladder bars and the reinforcing lacing bars are embedded in the first leaf plate and the second leaf plate;

and one part of the embedded joint bar extends into a cavity formed by the first leaf plate and the second leaf plate and is fixedly connected with a tie bar in the ladder bar and the reinforcing tie bar.

According to at least one embodiment of the present disclosure, the fixedly connecting the part of the embedded dowel, the ladder bar and the reinforcing tie bar comprises welding or binding.

According to at least one embodiment of the present disclosure, the ladder bar comprises a transverse bar and a tie bar, wherein the two transverse bars are arranged in parallel at intervals;

two ends of the tie bar are respectively fixedly connected with the two transverse reinforcing steel bars, and the tie bar is perpendicular to the transverse reinforcing steel bars; and

the plurality of tie bars are arranged along the length direction of the transverse steel bar at intervals.

According to at least one embodiment of the present disclosure, the embedded steel bars are annular steel bars and are multiple,

one end of the embedded dowel bar extends into the reinforcement cage and is fixedly connected with the tie bars of the ladder bars and the reinforcing tie bars.

According to at least one embodiment of the present disclosure, further comprising vertical rebars,

the vertical reinforcing steel bars are perpendicular to the plane where the ladder reinforcing steel bars are located;

the plurality of ladder bars are arranged at intervals along the height direction of the vertical reinforcing bars; and

a plurality of the ladder muscle is with a plurality of vertical reinforcing bar fixed connection forms the steel reinforcement cage.

According to at least one embodiment of the disclosure, the embedded steel bars extend into the cavity for 1/3-1/2 of the total length.

According to at least one embodiment of the present disclosure, the reinforcing cage is plural,

the two ends of the reinforcing tie bars are respectively fixedly connected with the two vertical steel bars and parallel to the tie bars, and the embedded joint bars are fixedly connected with the plurality of reinforcing tie bars and the plurality of tie bars.

According to at least one embodiment of the present disclosure, the fixed connection of the tie bar and the vertical reinforcing bar includes welding or banding.

According to still another aspect of the present disclosure, there is provided a cavity shear wall vertical dowel connection structure, including: the vertical dowel bar structures are arranged on the upper cavity shear wall and the cavity shear wall above the upper cavity shear wall;

at least one part of the embedded joint bar extending out of the cavity shear wall extends into the cavity of the upper cavity shear wall and is fixedly connected with the reinforcement cage of the upper cavity shear wall.

According to at least one embodiment of the present disclosure, concrete is poured into at least the cavities of the cavity shear wall and the upper cavity shear wall to form a connecting structure having a lap joint form.

According to one aspect of the disclosure, a method for producing a vertical dowel structure of a cavity shear wall comprises the following steps:

processing ladder bars, reinforcing tie bars and pre-buried joint bars according to a preset drawing by using steel bar processing equipment;

fixedly connecting one part of the embedded joint bar with the ladder bar and the reinforcing tie bar to form a reinforcement cage;

arranging a first template, and placing one end of the reinforcement cage into a preset position of the first template;

pouring concrete in the first template to a preset height to form a first leaf plate fixedly connected with one end of the reinforcement cage;

arranging a second template, and pouring concrete in the second template to form a second page plate; and

and turning the first page plate, and pressing the other end of the reinforcement cage into the second page plate.

According to at least one embodiment of the present disclosure, further comprising maintaining,

after the process of forming the first sheet, putting the first sheet into a curing kiln for curing to a preset strength;

and turning the first sheet plate, pressing the other end of the reinforcement cage into the second sheet plate, and then placing the first sheet plate and the second sheet plate into a curing kiln for curing to a preset strength to form the cavity shear wall.

According to at least one embodiment of the present disclosure, the temperature of the curing kiln is not more than 60 ℃, and the curing time is 2-6 h.

According to at least one embodiment of the present disclosure, the method further comprises reserving pre-embedding,

in the process of arranging the first template, reserving a pre-buried pipeline; and

and in the process of arranging the second template, reserving a pre-buried pipeline.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic illustration of casting a first panel concrete according to an embodiment of the present disclosure.

Fig. 2 is a schematic top view of a vertical tendon structure of a cavity shear wall according to an embodiment of the present disclosure.

Fig. 3 is a schematic side view of a vertical tendon structure of a cavity shear wall according to an embodiment of the present disclosure.

Reference numerals: 1-ladder reinforcement; 2, embedding the inserted bars; 3-a sheet; 4-a mould table; 5-side molding; 6-vertical steel bars; 7-reinforcing lacing wire.

Detailed Description

The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

If the embedded joint bars of the cavity shear wall can be fixed in the next cavity wall (relative to the previous cavity wall), the root of the embedded joint bars basically has no deviation, and if the upper part of the embedded joint bars has the deviation, the upper part of the embedded joint bars can be along the height direction of the wall board (the state of the cavity wall when being normally arranged), and the direction perpendicular to the wall board has no deviation, so that the accuracy of the positioning of the embedded joint bars in the cavity of the vertical prefabricated wall board can be ensured.

The vertical rib inserting structure of the cavity shear wall and the production method thereof will be described in detail with reference to specific embodiments.

The disclosure provides a production method of a vertical dowel structure of a cavity shear wall, as shown in fig. 1, fig. 1 is a schematic view of pouring first-slab concrete according to an embodiment of the disclosure. Firstly, according to a drawing or a BOM (bill of Material) bill of materials, using reinforcing steel bar processing equipment or automatic processing equipment to process a ladder bar 1, a reinforcing tie bar 7, a pre-embedded tie bar 2 and a vertical reinforcing steel bar 6 which are required by a vertical tie bar structure of a cavity shear wall, wherein the ladder bar 1 comprises a transverse reinforcing steel bar and a tie bar, two ends of the tie bar are respectively fixedly connected with the two transverse reinforcing steel bars, and the tie bar is vertical to the transverse reinforcing steel bar; and a plurality of lacing wires are arranged at intervals along the length direction of the transverse steel bar, wherein the length direction of the transverse steel bar refers to the left and right direction along the paper surface in fig. 2. As shown in fig. 2, two transverse steel bars are arranged in parallel at intervals in the same plane, and both transverse steel bars are embedded in the sheet 3. Optionally, as vertical reinforcing bar 6 among the fig. 3, the plane that vertical reinforcing bar 6 perpendicular to ladder muscle 1 is located, a plurality of ladder muscle 1 set up along vertical reinforcing bar 6's direction of height interval, and wherein vertical reinforcing bar 6's direction of height is the direction of height when hollow shear wall normally vertical setting state, and two vertical reinforcing bar 6 are at the both ends fixed connection of ladder muscle respectively in the coplanar, weld or bind together and form the steel reinforcement cage.

The reinforcement cage further comprises embedded steel bars 2, wherein the embedded steel bars 2 are preferably ring-shaped steel bars, the embedded steel bars 2 are multiple (as shown in fig. 2), and the embedded steel bars 2 are arranged at the positions of the tie bars respectively. As shown in fig. 3, the lower end of the embedded joint bar 2 extends into the cavity between the two leaf plates 3, and the upper end of the embedded joint bar extends upwards to form the end parts of the two leaf plates 3, and is used for being inserted into the cavity of the upper shear wall and fixedly connected with the tie bars and the reinforcing tie bars, so as to form lap joint between the two shear walls arranged up and down. Optionally, the embedded steel bars extend into the shear wall cavity or the upper shear wall cavity for 1/3-1/2, preferably 1/2, of the total length. The lower extreme of pre-buried dowel bar 2 and the lacing wire fixed connection in the ladder muscle 1, simultaneously for the accurate positioning, still be provided with reinforcing lacing wire 7 in the fixed part of ladder muscle 1 with pre-buried dowel bar 2 coincidence, its reinforcing lacing wire 7's the mode of setting is the same with the lacing wire mode of setting in the ladder muscle 1, is equivalent to reducing the interval of lacing wire. Specifically, the both ends of reinforcing lacing wire 7 respectively with two vertical reinforcing bar 6 fixed connection to be on a parallel with the lacing wire, pre-buried dowel bar 2 and a plurality of reinforcing lacing wires 7 and/or lacing wire fixed connection, like modes such as welding, ligature, sleeve. The reinforcement cage is produced in a factory, so that the on-site construction preparation time is saved, and the construction speed is increased

As shown in fig. 1, after the lower end of the embedded dowel 2 is fixedly connected with the ladder bar 1 and the reinforcing tie bar 7 to form a reinforcement cage, a first template is arranged, for example, a side die 5 is arranged on a die table 4 to form a first sheet, a filler strip is arranged in the side die 5 to position the reinforcement cage, one end of the reinforcement cage is placed on the filler strip (namely, a preset position), then concrete is poured in the side die 5 to the thickness required by the first sheet, optionally the reinforcement cage is sent into a curing kiln to be cured to form a first sheet fixedly connected with one end of the reinforcement cage, and the first sheet is turned over after the curing is finished; and meanwhile, arranging a second template, for example, arranging a side mould on the mould table, pouring concrete for forming a second sheet, pressing the other end of the reinforcement cage of the turned first sheet into the concrete for forming the second sheet, and optionally sending the integral component into a curing kiln for curing to a preset strength, thereby forming the cavity shear wall with the vertical inserted bars 2.

According to at least one embodiment of the present disclosure, the temperature of the curing kiln is not more than 60 ℃, preferably not more than 50 ℃, and the heating and cooling rate is moderate, and is not too large or too small, for example, 2 ℃ per minute, the curing time is not too long or too short, and the curing strength is not reached too short, while the production line is blocked due to too long, and the production efficiency is low, optionally 2-6 h.

In the process of setting the first template and the second template, according to a drawing or a preset design, the method also comprises the step of reserving the pre-embedded pipeline, so that the pipeline is prevented from being set after the whole member is formed and is constructed.

To illustrate the method of producing the vertical dowel structure of the cavity shear wall of the present disclosure, wherein, in particular,

(1) according to a drawing or a BOM list, steel bars and ladder bars are processed by using steel bar processing equipment, the positions of the steel bars and the reinforcing tie bars are matched with the positions of the embedded joint bars, and the embedded joint bars can ensure the production quality and correctness through a numerical control technology;

(2) the embedded joint bars are welded or bound with the ladder, the reinforcing tie bars and the vertical steel bars to form a steel bar cage, so that the problem of displacement of the embedded joint bars caused by vibration during in-situ concrete pouring is solved;

(3) after the first sheet plate die assembly and the pre-embedding are finished, placing a reinforcement cage into the first sheet plate side die;

(4) distributing materials to the specified height of the first board by using concrete pouring equipment;

(5) placing the first sheet into a curing kiln for curing;

(6) erecting a side formwork and reserving a pre-buried pipeline on the second sheet plate on the formwork table;

(7) turning and pressing the first leaf plate into the concrete of the second leaf plate by using a turning machine;

(8) and placing the integral component into a curing kiln for curing to reach the preset strength.

The present disclosure also provides a vertical dowel structure of a cavity shear wall produced by the above production method, including: a first leaf plate, a second leaf plate and a reinforcement cage formed by pre-embedded joint bars 2, reinforcing tie bars 7, ladder bars 1 and vertical reinforcement bars 6,

the reinforcement cage is fixedly connected with the leaf plate 3, and comprises a first leaf plate and a second leaf plate;

the vertical reinforcing steel bars 6 and parts of the ladder bars 1 and the reinforcing tie bars 7 are embedded in the first leaf plate and the second leaf plate;

and a part of the embedded joint bar 2 extends into a cavity formed by the first leaf plate and the second leaf plate and is fixedly connected with a lacing wire and a reinforcing lacing wire 7 in the ladder bar 1.

The present disclosure also provides a vertical joint bar connection structure of cavity shear wall, include: the vertical dowel bar structures are arranged on the upper cavity shear wall and the cavity shear wall above the upper cavity shear wall;

at least one part of the embedded joint bar extending out of the cavity shear wall extends into the cavity of the upper cavity shear wall and is fixedly connected with the reinforcement cage of the upper cavity shear wall. And concrete is poured between at least two cavity shear walls and in the cavities of the cavity shear walls and the upper cavity shear wall to form a connecting structure in a lap joint mode.

In the production method and the embedded vertical dowel structure, the embedded dowel is produced in a factory, and the idea of an assembled building is met; the embedded joint bars can ensure the production quality and correctness through a numerical control technology; the preparation time of site construction is saved, and the construction speed is improved; the problem of pre-buried dowel bar aversion that the vibration leads to when having avoided cast in situ concrete.

In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to be the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.

Claims (10)

1. The utility model provides a vertical dowel structure of cavity shear wall which characterized in that includes: a first leaf plate, a second leaf plate and a reinforcement cage formed by pre-embedded joint bars, reinforcing tie bars, ladder bars and vertical reinforcement bars,

the reinforcement cage is fixedly connected with the first leaf plate and the second leaf plate;

the vertical reinforcing steel bars and parts of the ladder bars and the reinforcing lacing bars are embedded in the first leaf plate and the second leaf plate;

and one part of the embedded joint bar extends into a cavity formed by the first leaf plate and the second leaf plate and is fixedly connected with a tie bar in the ladder bar and the reinforcing tie bar.

2. The vertical tendon structure of a cavity shear wall of claim 1,

and one part of the embedded joint bar, the ladder bar and the reinforcing tie bar are fixedly connected by welding or binding.

3. The vertical tendon structure of a cavity shear wall of claim 2 wherein the ladder bars include transverse reinforcing bars and tie bars,

the two transverse steel bars are arranged in parallel at intervals;

two ends of the tie bar are respectively fixedly connected with the two transverse reinforcing steel bars, and the tie bar is perpendicular to the transverse reinforcing steel bars; and

the plurality of tie bars are arranged along the length direction of the transverse steel bar at intervals.

4. The vertical steel bar inserting structure of the cavity shear wall as claimed in claim 3, wherein the pre-embedded steel bars are annular steel bars and are multiple,

one end of the embedded dowel bar extends into the reinforcement cage and is fixedly connected with the tie bars of the ladder bars and the reinforcing tie bars.

5. The vertical tendon structure of a cavity shear wall of claim 4 further comprising vertical reinforcing steel,

the vertical reinforcing steel bars are perpendicular to the plane where the ladder reinforcing steel bars are located;

the plurality of ladder bars are arranged at intervals along the height direction of the vertical reinforcing bars; and

a plurality of the ladder muscle is with a plurality of vertical reinforcing bar fixed connection forms the steel reinforcement cage.

6. The vertical dowel structure of a cavity shear wall of claim 5, wherein the embedded dowels extend 1/3-1/2 of the total length of the embedded dowels into the cavity.

7. The vertical tendon structure of a cavity shear wall of claim 2 wherein the reinforcing tie bar is plural,

the two ends of the reinforcing tie bars are respectively fixedly connected with the two vertical steel bars and parallel to the tie bars, and the embedded joint bars are fixedly connected with the plurality of reinforcing tie bars and the plurality of tie bars.

8. The vertical tendon structure of a cavity shear wall of claim 7 wherein the attachment of the tie bars to the vertical rebars includes welding or tying.

9. The utility model provides a vertical joint bar connection structure of cavity shear force wall which characterized in that includes: an upper cavity shear wall disposed above the cavity shear wall and

the vertical tendon structure of a cavity shear wall of any one of claims 1-8;

at least one part of the embedded joint bar extending out of the cavity shear wall extends into the cavity of the upper cavity shear wall and is fixedly connected with the reinforcement cage of the upper cavity shear wall.

10. The cavity shear wall vertical dowel connection of claim 9,

and pouring concrete at least in the cavities of the cavity shear wall and the upper cavity shear wall to form a connecting structure in a lap joint mode.

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