Assembled prestressed shear wall and use method thereof

Abstract

The present invention belongs to the technical field of structural engineering, and specifically relates to an assembled prestressed shear wall and a method for using the same. The device comprises: a wall, a corrugated pipe, prestressed steel bars, an edge member, and main bars of the edge member. The wall is rhombus-shaped, the corrugated pipe is horizontally arranged inside the wall, the prestressed steel bars are arranged in the corrugated pipe, the edge member is arranged on both sides of the wall, and the main bars of the edge member are vertically arranged in the edge member. Compared with the prior art, the present invention has the advantages of: (1) improving the building assembly rate and ensuring that the bearing capacity of the member is not reduced; (2) industrializing assembled buildings; and (3) reducing on-site wet operations and carbon emissions.

Description

Technical Field

[0001] The invention belongs to the technical field of structural engineering, and in particular relates to an assembled prestressed shear wall and a use method thereof. Background Art

[0002] In recent years, in order to meet the needs of building industrialization, reduce carbon emissions and protect the environment, the country has vigorously promoted prefabricated buildings.

[0003] However, compared with the traditional on-site pouring operation mode, prefabricated construction technology is not fully mature and has a high cost, so there is great resistance in the process of promotion. Traditional prefabricated components are combined and connected at the floor level, which is relatively complicated. In addition, the bearing capacity of the components at the connection should also be guaranteed, so a better connection method is needed. Therefore, the shear wall needs to simplify the structure as much as possible while ensuring the bearing capacity of the wall.

[0004] Therefore, there is an urgent need for a shear wall that can reduce component connections and ensure connection strength, and thus an assembled prestressed shear wall is designed. Summary of the invention

[0005] The present invention is aimed at the above-mentioned problems and specifically designs an assembled prestressed shear wall. The connection position of the wall is set in the middle of the floor, which ensures the integrity of the horizontal components at the floor. The wall is pre-manufactured in the factory to reduce the problem of uncontrollable product quality caused by on-site wet processing.

[0006] To achieve the above-mentioned object, the present invention provides an assembled prestressed shear wall, comprising: a wall body, prestressed steel bars, edge members, main bars of the edge members and a corrugated pipe;

[0007] The wall body includes pre-buried plate steel bars and pre-buried beam steel bars;

[0008] The corrugated pipe is horizontally placed in the wall, one end of the corrugated pipe passes through the side of the wall, and the other end passes through the inclined surface of the wall. Edge components are arranged on both sides of the wall, and the main reinforcement of the edge component passes through the edge component longitudinally;

[0009] The prestressed steel bars are placed in the corrugated tube and fixed after the two walls are assembled;

[0010] The embedded plate reinforcement is thrown out and connected with the plate reinforcement in the floor plate, and the embedded beam reinforcement is thrown out and connected with the beam reinforcement in the floor beam.

[0011] Furthermore, an anchoring device is provided on the corrugated pipe; the anchoring device is used to fix the prestressed steel bars.

[0012] Furthermore, the two inclined surfaces at the upper and lower sides of the wall 1 have an inclination of 45° and can fit together; the wall bodies fit together to ensure the overall verticality and improve the bearing capacity.

[0013] The present invention also provides a method for using an assembled prestressed shear wall, comprising the following steps:

[0014] Step 1: The shear wall needs to be cast in the factory, and a post-casting distance is reserved from the edge component to the wall slope. Before casting, a corrugated pipe needs to be reserved in the wall, and the embedded plate steel bars and embedded beam steel bars are thrown out in the middle of the wall;

[0015] The post-pouring distance is used to facilitate the connection of the main reinforcement of the edge components and to facilitate on-site construction.

[0016] Step 2: transport the shear wall to the site for installation, align the upper and lower inclined surfaces of the two walls, align the corrugated pipes with each other and connect them, and align the main reinforcements of the edge members with each other and connect them;

[0017] Step 3: pour concrete for cast-in-place components, perform maintenance after pouring, and when the concrete strength reaches the designed strength, perform perforation and tensioning of prestressed steel bars and fix them with anchoring devices;

[0018] Step 4: After the tensioning is completed, grouting is performed on the post-casting area of ​​the edge member, the gap between the prestressed steel bar and the wall, and the butt joint of the wall.

[0019] Furthermore, the post-casting area in step 4 is an area formed by the edge member and the post-casting distance; the post-casting area is used for the post-cast concrete to enter the mold and complete vibration curing.

[0020] Furthermore, when the wall installation and docking are completed and a floor slab needs to be built, the embedded slab reinforcement is connected to the slab reinforcement in the floor slab, and the embedded beam reinforcement is connected to the beam reinforcement in the floor slab beam.

[0021] In summary, the assembled prestressed shear wall of the present invention has the following advantages and beneficial technical effects:

[0022] 1. The prefabricated prestressed shear wall of the present invention is prefabricated and processed in a factory and transported to the site. It can be quickly assembled on site, thus speeding up the construction progress.

[0023] 2. The prefabricated prestressed shear wall of the present invention uses prestressed steel bars to enable better connection of the wall, ensuring that the design bearing capacity of the components is not reduced;

[0024] 3. The assembled prestressed shear wall of the present invention can improve the industrialization level of buildings, increase labor productivity, and solve the problem of uncontrollable product quality caused by on-site wet processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 It is a structural schematic diagram of an assembled prestressed shear wall of the present invention;

[0027] Figure 2 It is a schematic diagram of the installation of an assembled prestressed shear wall of the present invention;

[0028] Figure 3 The present invention Figure 2 Enlarged view of species A;

[0029] Figure 4 It is a top view of an assembled prestressed shear wall of the present invention;

[0030] Figure 5 It is a schematic diagram of the connection between an assembled prestressed shear wall and a floor slab of the present invention;

[0031] Figure 6 It is a schematic diagram of the connection between an assembled prestressed shear wall and a floor beam of the present invention;

[0032] Figure 7 This is a completed casting diagram of an assembled prestressed shear wall of the present invention.

[0033] The reference numerals in the accompanying drawings are:

[0034] 1- wall; 11- embedded plate reinforcement; 12- embedded beam reinforcement;

[0035] 2- Prestressed steel bars;

[0036] 3-Edge member;

[0037] 4- Main reinforcement of edge members;

[0038] 5- bellows; 51- anchoring device;

[0039] 6-floor slab; 61-slab reinforcement;

[0040] 7-floor beam; 71-beam reinforcement. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the implementation of the present invention clearer, the technical solution in the embodiment of the present invention will be described in more detail below in conjunction with the drawings in the embodiment of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions; the described embodiments are part of the embodiments of the present invention, not all of the embodiments; the embodiments and directional terms described below with reference to the drawings are exemplary and intended to be used to explain the present invention, and cannot be understood as limitations on the present invention; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The embodiments of the present invention are described in detail below in conjunction with the drawings:

[0042] [Example 1]:

[0043] like Figure 1 , Figure 3 and Figure 4 As shown, it includes a wall 1, prestressed steel bars 2, edge members 3, edge member main bars 4 and a corrugated pipe 5;

[0044] The corrugated pipe 5 is pre-arranged horizontally inside the uncast wall 1 and penetrates the wall 1. An anchoring device 51 is arranged at one end of the vertical surface of the wall 1.

[0045] Preferably, the diameter of the corrugated tube 5 is 1.5 times the diameter of the prestressed steel bar 2 .

[0046] Edge members 3 are arranged on both sides of the wall 1, and main reinforcement 4 of the edge members longitudinally penetrates the edge members 3;

[0047] like Figure 5 and Figure 6 As shown, embedded plate steel bars 11 and embedded beam steel bars 12 are arranged in the middle part of the wall 1, and the embedded plate steel bars 11 and embedded beam steel bars 12 are thrown out for standby use, and then the wall 1 is cast in the factory, and during the casting, a post-casting distance is reserved from the edge member 3 to the inclined surface of the wall 1;

[0048] Preferably, the post-casting distance should be reserved only within the range of the edge member 3, and the reserved size should be able to ensure effective connection of the steel bars and facilitate on-site construction.

[0049] like Figure 2 As shown, the prestressed steel bar 2 is placed in the corrugated tube 5 of the butted wall 1 and fixed by an anchoring device 51, and the main reinforcement 4 of the edge member is connected accordingly;

[0050] Preferably, the prestressed steel bars 2 are made of steel strands, the corrugated tubes 5 are made of metal corrugated tubes, and the connection method of the main reinforcement 4 of the edge member is sleeve connection.

[0051] Preferably, the prestressed steel bar 2 should be able to pass through the corrugated tube 5 and ensure smooth grouting.

[0052] like Figure 5 and Figure 6 As shown, the embedded plate reinforcement 11 and the embedded beam reinforcement 12 are overlapped with the plate reinforcement 61 and the beam reinforcement 71 respectively and then welded.

[0053] [Example 2]:

[0054] The second embodiment discloses a method for using a prefabricated prestressed shear wall, comprising the following steps:

[0055] Step 1: Figure 1 As shown, the shear wall needs to be cast in the factory, and a post-casting distance is reserved from the edge member 3 to the inclined surface of the wall 1. Before casting, a corrugated pipe 5 needs to be reserved in the wall 1, and the embedded plate steel bars 11 and the embedded beam steel bars 12 are thrown out in the middle of the wall;

[0056] Step 2: Figure 2 As shown, the shear wall is transported to the site for installation, the upper and lower inclined surfaces of the two walls 1 are butted, the corrugated tubes 5 are aligned and connected to each other, and the main reinforcement 4 of the edge member is connected using a sleeve;

[0057] Step 3: Figure 3 As shown, the concrete pouring work of the cast-in-place component is carried out, and after the pouring is completed, the curing is carried out. When the concrete strength reaches the design strength, the prestressed steel bar 2 is punched and tensioned, and fixed with an anchor device 51;

[0058] Step 4: Figure 7 As shown, after the tensioning is completed, grouting is performed on the post-casting area of ​​the edge member 3, the gap between the prestressed steel bar 2 and the wall 1, and the joint of the wall 1.

[0059] like Figure 2 and Figure 4 As shown, the post-casting area in step 4 is the area formed by the edge member 3 and the post-casting distance.

[0060] like Figure 5 and Figure 6 As shown, when the wall 1 is installed and connected, when the floor slab 6 needs to be built, the embedded slab steel bars 11 are overlapped and welded with the slab bars 61 in the floor slab 6, and the embedded beam steel bars 12 are overlapped and welded with the beam bars 71 in the floor beam 7.

[0061] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for using an assembled prestressed shear wall, characterized in that: The steps include: Step 1: The shear wall needs to be cast in the factory, and a post-casting distance is reserved between the edge component (3) and the inclined surface of the wall (1). Before casting, a corrugated pipe (5) needs to be reserved in the wall (1), and the embedded plate steel bars (11) and the embedded beam steel bars (12) are thrown out in the middle of the wall; Step 2: transport the shear wall to the site for installation, butt the upper and lower inclined surfaces of the two walls (1), align the corrugated pipes (5) with each other and connect them, and align the main reinforcements (4) of the edge members with each other and connect them; Step 3: pouring concrete for the cast-in-place component, and performing curing after pouring. When the concrete strength reaches the designed strength, the prestressed steel bars (2) are punched and tensioned, and fixed with anchoring devices (51); Step 4: After the tensioning is completed, grouting is performed on the post-casting area of ​​the edge member (3), the gap between the prestressed steel bar (2) and the wall (1), and the joint of the wall (1); The assembled prestressed shear wall manufactured in the above steps comprises a wall body (1), prestressed steel bars (2), edge members (3), edge member main bars (4) and a corrugated pipe (5); The wall (1) comprises pre-embedded plate steel bars (11) and pre-embedded beam steel bars (12); The corrugated pipe (5) is horizontally placed in the wall (1), one end of the corrugated pipe (5) passes through the side surface of the wall (1), and the other end passes through the inclined surface of the wall (1), edge components (3) are arranged on both sides of the wall (1), and the main reinforcement (4) of the edge component longitudinally passes through the edge component (3); After the two walls (1) are assembled, the prestressed steel bars (2) are placed in the corrugated tube (5) and fixed; The embedded plate steel bars (11) are thrown out and connected to the plate steel bars (61) in the floor plate (6), and the embedded beam steel bars (12) are thrown out and connected to the beam steel bars (71) in the floor beam (7); The bellows (5) is provided with an anchoring device (51); The inclination of the two inclined surfaces at the upper and lower sides of the wall (1) is 45°, and the two walls (1) can fit together.

2. The method for using a prefabricated prestressed shear wall according to claim 1, characterized in that: The post-casting area in step 4 is the area formed by the edge component (3) and the post-casting distance.

3. The method for using a prefabricated prestressed shear wall according to claim 2, characterized in that: When the wall (1) is installed and connected, and a floor slab (6) needs to be constructed, the embedded slab reinforcement (11) is connected to the slab reinforcement (61) in the floor slab (6), and the embedded beam reinforcement (12) is connected to the beam reinforcement (71) in the floor beam (7).

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