A precast shear wall system with a vertical connection form and its installation implementation method

Abstract

The present invention discloses a precast shear wall system with a new type of vertical connection form and its installation implementation method, including: precast shear walls and connectors, and two vertically connected precast shear walls form an integral shear wall through the connectors; non-edge member areas and edge member areas are provided on the precast shear walls; metal bellows are embedded in the non-edge member areas, and steel cylinders are embedded in the edge member areas. Reinforcing bars are inserted into the metal bellows, and connectors are inserted into the steel cylinders and grout is poured to achieve the vertical reinforcement connection of the shear walls. In the present invention, the shear walls of the modular building are prefabricated in the factory, and the vertical connection adopts embedded metal bellows in the non-edge member areas and a new type of grouting connection node in the edge member areas, ensuring the reliability of the vertical connection of the modular shear walls and effectively solving the connection problems of the existing modular shear walls.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated modular integrated building structures, and particularly relates to a precast shear wall system with a new vertical connection form and an installation implementation method thereof. Background Art

[0002] Prefabricated modular integrated buildings are the highest form of prefabricated buildings. It can prefabricate structures, mechanical and electrical systems, decoration, etc. in the factory, and then transport the modules to the site for installation. The core of this technology is to transfer on-site operations to the factory, reduce on-site operations, and transform the construction industry towards the manufacturing industry.

[0003] One of the core technologies of prefabricated modular integrated buildings is the vertical connection technology of shear walls. Edge members generally need to be cast in situ. Steel bars need to be tied on site, and at the same time, formwork needs to be set up, which increases the on-site construction workload. At the same time, on-site wet operations also affect the development of decoration work in the factory. Therefore, developing a new vertical connection technology for shear walls is very important for the popularization of concrete modular integrated buildings. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the invention provides a precast shear wall system with a new vertical connection form and an installation implementation method thereof.

[0005] In order to achieve the above object, the technical solution of the invention is as follows:

[0006] The invention provides a precast shear wall system with a new vertical connection form, including: precast shear walls and connection joints. Two vertically connected precast shear walls form an integral shear wall through connecting members;

[0007] Non-edge member areas and edge member areas are provided on the precast shear walls;

[0008] Metal bellows are embedded in the non-edge member areas, and steel cylinders are embedded in the edge member areas. Steel bars are inserted into the metal bellows, and connecting members are inserted into the steel cylinders and grouted with slurry to achieve vertical connection of the shear walls.

[0009] Preferably, the precast shear wall includes an upper concrete module and a lower concrete module; the number of edge member areas provided on the upper concrete module is at least 1, and is arranged at the end corners of the upper concrete module. Correspondingly, the number of edge member areas provided on the lower concrete module is at least 1, and is arranged at the end corners of the lower concrete module.

[0010] Preferably, shear studs are also provided on the inner side of the steel cylinder and on the connecting members.

[0011] Preferably, grouting holes and slurry overflow holes are also provided on the steel cylinder.

[0012] Preferably, the grouting holes and slurry overflow holes are arranged on the upper side of the steel cylinder; the slurry overflow holes are placed above the grouting holes.

[0013] Preferably, the precast shear wall system with the novel vertical connection form further includes shear wall longitudinal reinforcement and shear wall horizontal reinforcement; the shear wall longitudinal reinforcement and shear wall horizontal reinforcement are both embedded in the precast shear wall.

[0014] The present invention also provides an installation implementation method for a precast shear wall system with a novel vertical connection form, including the following steps:

[0015] Step 1, fabricate the upper concrete module and the lower concrete module, and open a non-edge member area and an edge member area on the upper concrete module and the lower concrete module;

[0016] Step 2, embed metal corrugated pipes in the non-edge member area and steel cylinders in the edge member area;

[0017] Step 3, install the upper concrete module: insert a connecting piece into the steel cylinder at the top of the upper concrete module and adjust the connecting piece to be vertical;

[0018] Step 4, install the lower concrete module, align the lower concrete module with the upper concrete module, and sleeve the steel cylinder at the bottom of the concrete module onto the connecting piece;

[0019] Step 5, insert steel bars into the metal corrugated pipes and grout; pour the slurry into the steel cylinder from the grouting hole until the slurry overflows from the slurry overflow hole to achieve the vertical connection of the precast shear wall body.

[0020] Adopting the technical solution of the present invention has the following beneficial effects: the shear walls of the modular building in the invention are prefabricated in the factory, and the vertical connection adopts grouting lap joint with embedded metal corrugated pipes in the non-edge member area and novel connection nodes in the edge member area, and the hollow part is grouted to ensure the reliability of the vertical connection of the modular shear wall, which can effectively solve the problems brought by the cast-in-place technology used in the edge member area of the existing modular shear wall.

[0021] The procedure of tying steel bars on site is eliminated, and no formwork needs to be set on site, greatly reducing the labor amount on the construction site; 2. The concrete pouring volume in the edge member area is greatly reduced; 3. Only grouting operation is required on site, which will not pollute the interior decoration, so the decoration work can be completed in the factory, greatly improving the prefabrication rate and production efficiency. Description of the Drawings

[0022] Figure 1 It is a structural schematic diagram of the invention;

[0023] Figure 2 It is a cross-sectional view of the invention;

[0024] Figure 3 It is a sectional view taken along line A-A of the invention;

[0025] Figure 4 This is a connection schematic diagram of a precast shear wall of the present invention with 4 edge member areas opened thereon. Specific embodiments

[0026] The embodiments of the invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the invention and should not be construed as limiting the invention.

[0027] In the description of the invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the invention, "a plurality" means two or more unless otherwise specifically defined.

[0029] In the invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0030] In the invention, unless otherwise clearly defined and limited, the first feature is "above" or

[0031] "Lower" may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0032] Referring Figures 1 to 4 , the present invention provides a precast shear wall system with a new type of vertical connection form, comprising: a precast shear wall 2, a connecting member 4; two vertically connected precast shear walls 2 form an integral shear wall through the connecting member 4;

[0033] The precast shear wall 2 is provided with a non-edge member area and an edge member area;

[0034] A metal corrugated pipe 5 is embedded in the non-edge member area, and a steel cylinder 1 is embedded in the edge member area. Reinforcing bars are inserted into the metal corrugated pipe 5 and grout is poured to form a grout anchor lap joint. The connecting member 4 is inserted into the steel cylinder 1 and grout is poured to achieve vertical connection. Shear studs 10 are provided on the inner side of the steel cylinder 1 and the connecting member 4.

[0035] Furthermore, the precast shear wall 2 comprises a concrete upper module 30 and a concrete lower module 20; at least one edge member area is provided on the concrete upper module 30 and is arranged at the end corners of the concrete upper module 30. Correspondingly, at least one edge member area is provided on the concrete lower module 20 and is arranged at the end corners of the concrete lower module 20.

[0036] Furthermore, a grouting hole 101 and an overflow hole 102 are further provided on the steel cylinder 1; the grouting hole 101 and the overflow hole 102 are opened at the upper side part of the steel cylinder 1; the overflow hole 102 is placed above the grouting hole 101, and the overflow hole 102 is used to ensure dense grouting, and the grouting hole 101 is used for grouting; the precast shear wall system with a vertical connection form further comprises shear wall longitudinal bars 3 and shear wall horizontal bars 6; the shear wall longitudinal bars 3 and the shear wall horizontal bars 6 are both embedded in the precast shear wall 30, and the shear wall longitudinal bars 3 are welded to the end plates of the steel cylinder 1.

[0037] The present invention also provides an installation method for a precast shear wall system with a vertical connection form, comprising the following steps:

[0038] Step 1, fabricate the concrete upper module 30 and the concrete lower module 20, and open a non-edge member area and an edge member area on the concrete upper module 30 and the concrete lower module 20;

[0039] Step 2: Embed metal corrugated pipe 5 in the non-edge member area and embed steel cylinder 1 in the edge member area;

[0040] Step 3: Install the lower concrete module 20: Insert the connecting piece 4 into the steel cylinder 1 at the top of the lower concrete module 20 and adjust the connecting piece 4 to be vertical;

[0041] Step 5: Install the upper concrete module 30, requiring its holes to be aligned with the holes of the lower concrete module 20, so that the steel cylinder at the bottom of the upper concrete module 30 is sleeved on the connecting piece 4;

[0042] Step 6: Insert steel bars into the metal corrugated pipe 5 and grout; Pour the slurry into the steel cylinder 1 from the grouting hole 101 until the slurry overflows from the overflow hole 102 to achieve the vertical connection of the precast shear wall.

[0043] The above are only the preferred embodiments of the invention, and do not limit the patent scope of the invention accordingly. Any equivalent structural transformation made under the utility model concept of the invention by using the content of the invention specification and drawings, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the invention.

Claims

1. A precast shear wall system with a new type of vertical connection form, characterized in that, it includes: Precast shear walls and connectors. Two vertically connected precast shear walls form an integral shear wall through the connectors; Non-edge member areas and edge member areas are provided on the precast shear walls; Metal corrugated pipes are embedded in the non-edge member areas, and steel cylinders are embedded in the edge member areas. Reinforcing bars are inserted into the metal corrugated pipes, and connectors are inserted into the steel cylinders and grouted to achieve vertical reinforcement connection of the shear walls; The precast shear wall includes a concrete upper module and a concrete lower module; at least one edge member area is provided on the concrete upper module and is arranged at the end corners of the concrete upper module. Correspondingly, at least one edge member area is provided on the concrete lower module and is arranged at the end corners of the concrete lower module; Shear studs are provided on the inner side of the steel cylinder and on the connectors; Grouting holes and slurry overflow holes are also provided on the steel cylinder; The grouting holes and slurry overflow holes are provided on the upper side of the steel cylinder; the slurry overflow holes are placed above the grouting holes.

2. The precast shear wall system with a new type of vertical connection form according to claim 1, characterized in that, The precast shear wall system with a new type of vertical connection form further includes shear wall longitudinal reinforcement and shear wall horizontal reinforcement; the shear wall longitudinal reinforcement and shear wall horizontal reinforcement are both embedded in the precast shear wall.

3. An installation implementation method for a precast shear wall system with a new type of vertical connection form, characterized in that, it includes the following steps: Step 1, fabricate the concrete upper module and the concrete lower module, and open non-edge member areas and edge member areas on the concrete upper module and the concrete lower module; Step 2, embed metal corrugated pipes in the non-edge member areas and steel cylinders in the edge member areas; Step 3, install the concrete upper module: insert a connector into the steel cylinder at the top of the concrete upper module and adjust the connector to be vertical; Step 4, install the concrete lower module, align the concrete lower module with the concrete lower module, and make the steel cylinder at the bottom of the concrete module sleeve the connector; Step 5, insert reinforcing bars into the metal corrugated pipes and grout; pour grout into the steel cylinder from the grouting hole until the grout overflows from the slurry overflow hole to achieve vertical connection of the precast shear wall body.

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