Connecting structure of prefabricated parts

Abstract

The utility model discloses a connecting structure of a prefabricated part, which comprises an auxiliary tool arranged vertically, a plurality of hanging parts arranged on the auxiliary tool at intervals from top to bottom; an annular horizontal connecting rib is hung on each hanging part; the cast-in-place area is formed by butt joint of the side ends of two horizontally adjacent prefabricated parts, each prefabricated part comprises a part body and a horizontal steel bar, and the side end of each horizontal steel bar is of a first closed structure; the side ends of the two horizontally adjacent prefabricated components are in close splicing connection on one side and non-close splicing connection on the other side on the two sides of the component body in the thickness direction, and the auxiliary tool is vertically arranged from the first closed structure; the horizontal connecting rib enters the cast-in-place area under lifting and horizontal pushing of the auxiliary tool and moves to the position above the first closed structure of the horizontal connecting rib, and then after the auxiliary tool falls down, the horizontal connecting rib falls down along with the auxiliary tool to be installed in place; and vertically arranged constructional steel bars are also arranged in the cast-in-place area.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated components, in particular to a connection structure of prefabricated components. Background Art

[0002] Currently, a prefabricated component has a cast-in-place cavity inside. After the prefabricated components are transported to the construction site, adjacent prefabricated components are horizontally connected to achieve assembly of the prefabricated components.

[0003] However, for some prefabricated components, when they are connected to each other in the horizontal direction, there are problems such as poor connection node strength, easy cracking, and poor integrity. In addition, there are also problems such as low connection efficiency and low degree of template standardization.

[0004] To this end, the inventors have invented a connection technology that uses close-fitting on one side and non-close-fitting on the other side of a cast-in-place joint. However, there is no disclosure in the prior art on how to quickly and easily insert horizontal connecting steel bars into the cast-in-place area.

[0005] In view of this, the present invention is proposed. Utility Model Content

[0006] The purpose of the present invention is to overcome the above technical deficiencies and provide a connection structure for prefabricated components to at least solve some of the technical problems existing in the related art.

[0007] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0008] According to one aspect of the present invention, a connection structure of prefabricated components is provided, comprising:

[0009] A vertically arranged auxiliary tooling, wherein the auxiliary tooling is provided with a plurality of hanging parts spaced apart from top to bottom; each hanging part is hung with a circular horizontal connecting rib;

[0010] A cast-in-place area formed by butting the side ends of two horizontally adjacent prefabricated components, wherein the prefabricated components include a component body and horizontal reinforcement, and the side ends of the horizontal reinforcement are first closed structures; the side ends of the two horizontally adjacent prefabricated components are located on both sides of the component body along the thickness direction, one side being closely connected and the other side being non-closely connected, and the auxiliary tooling is vertically inserted from the first closed structure, so that the horizontal connecting bar enters the cast-in-place area and moves to above the first closed structure of the horizontal connecting bar under the lifting and horizontal pushing of the auxiliary tooling, so that the horizontal connecting bar falls down after the auxiliary tooling falls down to be installed in place;

[0011] Vertically arranged structural steel bars are also placed in the cast-in-place area.

[0012] Furthermore, the connection structure of the precast member further includes the connection structure of upper and lower layers of precast members;

[0013] In the connection structure of the upper and lower layers of precast members, the main body of the upper precast member has precast vertical steel bars and a cast-in-place cavity, and the cast-in-place cavity leads to the bottom end of the upper precast member, so that both the front and back sides of the cast-in-place cavity are concrete parts;

[0014] The bottom end of the vertical steel bar extends out from the concrete part and has a second closed structure exposed below the cast-in-place cavity at the end;

[0015] The post-inserted steel bars protruding from the top of the lower precast member are placed into the cast-in-place cavity at the bottom of the upper precast member and are staggered from the second closed structure.

[0016] Furthermore, the hanging part of the auxiliary tooling is an upward-facing hook-shaped body.

[0017] The connection structure of the precast member provided by the present utility model adopts a close-fitting connection on one side of the side of the precast member and a non-close-fitting connection on the other side, and is equipped with auxiliary tooling. The auxiliary tooling is used to hang the horizontal connecting bars, so as to facilitate the horizontal connecting bars to be skillfully, quickly, and accurately inserted from the non-close-fitting side into the cast-in-place area of two horizontally adjacent precast members, and finally placed above the closed end of the horizontal steel bar at the side end. With such a connection structure, during the insertion process of the horizontal connecting steel bars, they will not be restricted by the spacing on the non-close-fitting side and the spatial position of the closed end of the horizontal steel bar, which helps to improve the insertion efficiency of the horizontal connecting bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a connection structure of a precast member provided by an embodiment of the present utility model (horizontal connection);

[0019] Figure 2 is Figure 1 an enlarged structural schematic diagram at the connection node;

[0020] Figure 3 is Figure 1 a structural schematic diagram after the horizontal connecting bar is installed in place;

[0021] Figure 4 is Figure 3 an enlarged structural schematic diagram at the connection node;

[0022] Figure 5 is Figure 3 a top view structural schematic diagram;

[0023] Figure 6 is a schematic diagram of a connection structure of a precast member provided by an embodiment of the present utility model (upper and lower connection);

[0024] Figure 7 It is a schematic enlarged view of the bottom of the precast member;

[0025] Figure 8 is Figure 6 a schematic enlarged view at the connection node;

[0026] In the figure:

[0027] 1 - member main body; 2 - horizontal steel bar; 21 - first closed structure; 3 - edge cavity; 4 - cast-in-place area; 5 - long wing limb;

[0028] 6 - short wing limb; 7 - horizontal connecting bar; 8 - auxiliary tooling; 9 - hanging part; 10 - construction steel bar; 11 - vertical steel bar;

[0029] 12 - cast-in-place cavity; 13 - second closed end; 14 - post-inserted steel bar. Specific embodiments

[0030] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0031] The embodiment of the present utility model provides a connection structure for precast members, in combination with Figures 1-5 , including two horizontally adjacent precast members. The precast members include a member main body 1 and horizontal steel bars 2. The side ends of the member main body 1 extend along the length direction on the front and rear sides, respectively forming two side wing limbs. An edge cavity 3 that penetrates from top to bottom is formed between the two side wing limbs. After the two horizontally adjacent precast members are butted, the edge cavities 3 of each other are butted to form a cast-in-place area 4.

[0032] Among the two side wing limbs, one is longer, called the long wing limb 5, and the other is shorter, called the short wing limb 6. When two adjacent precast members are connected, the long wing limbs 5 are butted to form a closely joined connection with a narrow spacing, and a non-closely joined connection with a wider spacing is formed between the short wing limbs 6. On one side of the non-closely joined connection, due to the larger operating space, it is convenient to place horizontal connecting steel bars, and the part of the cast-in-place concrete is more than that on the closely joined side, which helps to prevent cracking at the joint and improve the connection strength of the connection node. The closely joined connection on the other side limits the spacing between the two precast members, which helps to realize the standardized design of the formwork.

[0033] Alternatively, in some embodiments, the wing limbs are provided only on one side, that is, only the wing limbs on one side are long wing limbs 5, and the length of the short wing limbs on the other side is zero.

[0034] In some embodiments, the end of the horizontal steel bar 2 of the member main body 1 is a first closed structure 21, and this first closed structure is exposed at the side end of the member main body 1, specifically, it can be flush with one end of the long wing limb 5.

[0035] In this way, on both sides of the precast member cast-in-place area along the thickness direction, a close-fitting connection is formed on one side and a non-close-fitting connection is formed on the other side.

[0036] When connecting two horizontally adjacent precast members, a circular horizontal connecting bar 7 also needs to be arranged in the cast-in-place area 4. However, since the placed horizontal connecting bar 7 needs to occupy the position of the cavity 3 at the side end edge of the precast member, even on the non-close-fitting connection side with a large spacing, it is not easy to directly place the horizontal connecting bar 7 due to the obstruction of the concrete member main body. On the other hand, the horizontally precast steel bar 2 at the side end of the precast member will also cause an obstruction to the placement of the horizontal connecting bar 7 in the vertical direction.

[0037] To solve this problem, in this embodiment, an auxiliary tooling 8 is also vertically arranged in the cast-in-place area. As an example, the auxiliary tooling 8 includes a vertically arranged main body, on which there are a number of hanging parts 9 arranged at vertical intervals. In this embodiment, the hanging part 9 is a hook-shaped body facing upward, and the circular horizontal connecting bar 7 is hung on the hanging part 9. In this way, the horizontal connecting bar 7 can be arranged obliquely and moved and rotated, which is convenient for placing it into the cast-in-place area 4.

[0038] During use, under the lifting of the auxiliary tooling 8, the horizontal connecting bar 7 can move from the gap between adjacent horizontal steel bars 2 to above the first closed structure 21 of the horizontal steel bar 2, and be placed at a suitable position along the thickness direction of the cast-in-place area 4 under horizontal pushing. And enter the cast-in-place area 4 under horizontal pushing and move to above the first closed structure 21 of the horizontal connecting bar 7, so that after the auxiliary tooling 8 drops, the horizontal connecting bar 7 drops accordingly to be installed in place. Then insert the construction steel bar 10 into the cast-in-place area 4 and take out the auxiliary tooling 8.

[0039] Combined with Figures 6-8, the connection structure of precast components further includes the connection structure of upper and lower layers of precast components; in the connection structure of upper and lower layers of precast components, there are precast vertical steel bars 11 and cast-in-place cavities 12 in the component body of the upper precast component. The cast-in-place cavity 12 leads to the bottom end of the upper precast component, so that the front and back sides of the cast-in-place cavity 12 are concrete parts; the bottom end of the vertical steel bar 11 extends out from the concrete part and has a second closed structure 13 exposed below the cast-in-place cavity 12 at the end; the post-inserted steel bar 14 protruding from the top of the lower precast component is placed into the cast-in-place cavity 12 at the bottom of the upper precast component and is staggered from the second closed structure 13.

[0040] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A connecting structure for prefabricated components, characterized in that, Comprising: An auxiliary tooling arranged vertically, with a plurality of hanging parts spaced from top to bottom on the auxiliary tooling; a ring-shaped horizontal connecting bar is hung on each of the hanging parts; A cast-in-place area formed by butt-jointing the side ends of two horizontally adjacent precast members. The precast members include a member main body and horizontal steel bars, and the side ends of the horizontal steel bars are of a first closed structure; the side ends of two horizontally adjacent precast members are among the two sides of the member main body along the thickness direction, one side is closely joined, and the other side is not closely joined. The auxiliary tooling is vertically inserted from the first closed structure, so that the horizontal connecting bar enters the cast-in-place area under the lifting and horizontal pushing of the auxiliary tooling and moves above the first closed structure of the horizontal connecting bar. Then, after the auxiliary tooling drops, the horizontal connecting bar drops accordingly to be installed in place; Vertical structural steel bars are also inserted into the cast-in-place area.

2. The connecting structure of the prefabricated component according to claim 1, characterized in that, The connection structure of the precast members further includes the connection structure of upper and lower layers of precast members; In the connection structure of the upper and lower layers of precast members, the member main body of the upper precast member has precast vertical steel bars and a cast-in-place cavity, and the cast-in-place cavity leads to the bottom end of the upper precast member, so that the front and back sides of the cast-in-place cavity are concrete parts; The bottom end of the vertical steel bar extends out from the concrete part and has a second closed structure exposed below the cast-in-place cavity at the end; The post-inserted steel bars protruding from the top of the lower precast member are inserted into the cast-in-place cavity at the bottom of the upper precast member and are staggered from the second closed structure.

3. The connecting structure of the prefabricated component according to claim 1, characterized in that, The hanging part of the auxiliary tooling is an upward-facing hook-shaped body.

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