L-shaped wall formwork for modular building

Abstract

The utility model relates to an L-shaped wall formwork for a modular building. The L-shaped wall formwork comprises an L-shaped first formwork and an L-shaped second formwork which are arranged in parallel in a spaced mode. The L-shaped reinforcement cage is installed between the first formwork and the second formwork in parallel, one side of the reinforcement cage is connected with the first formwork, and the other side of the reinforcement cage is connected with the second formwork. The reinforcement cage comprises a plurality of first reinforcements extending in the vertical direction and a plurality of L-shaped second reinforcements which are parallel to the first template and are arranged at intervals; the first reinforcements are connected with the second reinforcements. According to the L-shaped wall formwork for the modular building, the reinforcement cage is installed between the first formwork and the second formwork, so that the strength of the L-shaped wall formwork for the modular building is improved, when the L-shaped wall formwork for the modular building is used for assembling a house for construction, the reinforcement cage does not need to be bound on site, the problem that the reinforcement cage is difficult to bind on site is solved, site construction procedures are reduced, the construction progress is accelerated, and the construction efficiency is improved. The construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated buildings, in particular to an L-shaped wall formwork for modular buildings. Background Technique

[0002] Modular integrated buildings refer to the modular splitting of single buildings according to spatial structures, house types, and functional partitions, etc., then the prefabrication of spatial modules is completed in the factory, and then each module is transported to the construction site and installed. Finally, a building entity that meets the requirements of safety, reliability, and related functions is formed. Compared with the traditional construction method, the modular integrated construction method has the advantages of high construction efficiency, energy saving, and environmental protection.

[0003] Chinese Patent CN218933525U discloses an L-shaped wall formwork for non-dismantling modular buildings, including a first formwork and a second formwork, and truss bars are arranged on the first formwork. The strength of this modular wall formwork is low. Therefore, when in use, it is necessary to bind steel bars on site to increase the strength of the modular wall formwork. However, due to the presence of truss bars, it is difficult to bind steel bars on site.

[0004] Therefore, there is an urgent need for a wall formwork that can bear shear force. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an L-shaped wall formwork for modular buildings and a construction method, which solve the technical problems of low strength of the wall formwork in the prior art and inconvenient on-site binding of steel bars.

[0007] (2) Technical Solutions

[0008] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0009] An L-shaped wall formwork for modular buildings, including:

[0010] The first L-shaped formwork and the second L-shaped formwork arranged in parallel at intervals;

[0011] An L-shaped steel bar cage, which is installed in parallel between the first formwork and the second formwork, one side of the steel bar cage is connected to the first formwork, and the other side is connected to the second formwork;

[0012] The steel bar cage includes a plurality of first steel bars extending in the vertical direction and a plurality of L-shaped second steel bars parallel to the first formwork and arranged at intervals;

[0013] A plurality of the first steel bars are arranged in two rows of first steel bar rows arranged in parallel at intervals, a plurality of the second steel bars are arranged in two rows of second steel bar rows arranged in parallel at intervals, and the two rows of the second steel bar rows are respectively installed on the opposite sides of the two rows of the first steel bar rows. Each row of the second steel bar rows includes a plurality of the second steel bars arranged in parallel at intervals in the vertical direction;

[0014] The first steel bars are connected to the second steel bars.

[0015] Preferably, both the first formwork and the second formwork are wall formworks for concrete pouring.

[0016] Preferably, one of the first formwork and the second formwork is a wall formwork for concrete pouring, and the other is a detachable metal formwork.

[0017] Preferably, the steel reinforcement cage further includes a first edge member and an L-shaped second edge member, and both the first edge member and the second edge member are arranged to extend in the vertical direction;

[0018] The first formwork and the second formwork respectively have a first end and a second end with an L-shaped corner;

[0019] The first edge member is installed between the first ends of the first formwork and the second formwork, and the second edge member is installed between the second ends of the first formwork and the second formwork.

[0020] Preferably, the first edge member includes a plurality of third steel bars arranged to extend in the vertical direction and a plurality of annular first stirrups arranged in the horizontal direction;

[0021] The plurality of third steel bars are arranged in a cuboid shape, and the plurality of first stirrups are sleeved on the plurality of third steel bars arranged in a cuboid shape at intervals in the vertical direction.

[0022] Preferably, the second edge member includes a plurality of fifth steel bars arranged to extend in the vertical direction, a plurality of annular second stirrups arranged in the horizontal direction, and a plurality of annular third stirrups arranged in the horizontal direction. The second stirrups and the first stirrups are located in the same extension direction, and the third stirrups are perpendicular to the second stirrups;

[0023] The plurality of fifth steel bars are arranged in two rows of fifth steel bar rows arranged in parallel at intervals. The fifth steel bar rows are arranged in an L-shaped structure, and the fifth steel bar rows have a first side extending in the same direction as the second stirrups and a second side perpendicular to the first side;

[0024] The second stirrups are sleeved on the first sides of the two rows of fifth steel bar rows, and the third stirrups are sleeved on the second sides of the two rows of fifth steel bar rows.

[0025] Preferably, the steel reinforcement cage further includes a plurality of tie bars, the plurality of tie bars are arranged perpendicular to the first formwork and the second formwork, and the first steel bar, the second steel bar and the structural column are all connected to the tie bars.

[0026] Preferably, the plurality of tie bars are arranged in multiple tie bar layers arranged in the vertical direction, and each tie bar layer includes a plurality of the tie bars arranged at intervals in the horizontal direction.

[0027] Preferably, the tie bar is a first connecting rod, and a plurality of embedded anchor bars extending in the vertical direction are installed inside the formwork which is a wall formwork among the first formwork and the second formwork, and one end of the tie bar is connected to the embedded anchor bar.

[0028] Preferably, the tie bar includes two second connecting rods arranged in parallel and spaced up and down, and a U-shaped connecting frame is connected to the same end of the two second connecting rods, and the U-shaped connecting frame is arranged parallel to the first formwork.

[0029] (III) Beneficial effects

[0030] The beneficial effects of the present utility model are as follows:

[0031] By installing the steel reinforcement cage between the first formwork and the second formwork, the strength of the modular building L-shaped wall formwork is increased. When using the modular building L-shaped wall formwork to assemble a house, it is no longer necessary to bind the steel reinforcement cage on site, solving the problem of difficult on-site binding of the steel reinforcement cage, reducing on-site construction procedures, accelerating the construction progress, and improving the construction efficiency. Description of the drawings

[0032] Figure 1 It is a cross-sectional view of the overall structure of the modular building L-shaped wall formwork in Embodiment 1;

[0033] Figure 2 For Figure 1 The enlarged schematic view at A in;

[0034] Figure 3 It is a schematic structural view of the steel reinforcement cage of the present utility model;

[0035] Figure 4 It is a cross-sectional view of the overall structure of the modular building L-shaped wall formwork in Embodiment 2.

[0036]

Description of the reference numerals

[0037] 1: First formwork; 2: Second formwork; 5: Second steel bar; 6: First steel bar; 7: Embedded anchor bar; 8: Tie device; 111: Stirrup; 112: Third steel bar; 12: Tie bar; 13: First edge member; 141: First component; 142: Second component; 143: Member steel bar. Detailed implementation manners

[0038] For better explaining the present utility model for easy understanding, the present utility model will be described in detail below in conjunction with the accompanying drawings through specific embodiments. Taking Figure 1 as a reference, the axial direction of the first steel bar 6 is defined as the "vertical direction", the axial direction of the tie bar 12 is defined as the "front-back direction", and the axial direction of the second steel bar 5 is defined as the "left-right direction".

[0039] Embodiment 1

[0040] As Figures 1 to 4 shown, an L-shaped wall formwork for modular buildings includes an L-shaped first formwork 1, an L-shaped second formwork 2, and an L-shaped steel reinforcement cage. The first formwork 1 and the second formwork 2 are arranged in parallel at intervals, and the placement directions of the first formwork 1 and the second formwork 2 are the same and always remain parallel. The steel reinforcement cage is installed between the first formwork 1 and the second formwork 2, the steel reinforcement cage extends along a direction parallel to the first formwork 1, one side of the steel reinforcement cage is connected to the first formwork 1, and the other side is connected to the second formwork 2.

[0041] The steel reinforcement cage includes a plurality of first steel bars 6 extending in the vertical direction and a plurality of L-shaped second steel bars 5 arranged in parallel at intervals and parallel to the first formwork. The plurality of first steel bars 6 are arranged in two columns of first steel bar columns arranged in parallel at intervals, the plurality of second steel bars 5 are arranged in two rows of second steel bar rows arranged in parallel at intervals, the two rows of second steel bar rows are respectively installed on the opposite sides of the two columns of first steel bar columns, and each row of second steel bar rows includes a plurality of second steel bars 5 arranged in parallel at intervals in the vertical direction; the first steel bars 6 are connected to the second steel bars 5.

[0042] By installing the steel reinforcement cage between the first formwork 1 and the second formwork 2, the strength of the L-shaped wall formwork for modular buildings is increased. When using the L-shaped wall formwork for modular buildings to assemble a house for construction, it is no longer necessary to bind the steel reinforcement cage on site, solving the problem of difficult on-site binding of the steel reinforcement cage, reducing on-site construction procedures, accelerating the construction progress, and improving the construction efficiency.

[0043] Specifically, both the first formwork 1 and the second formwork 2 include a first end arranged in the left-right direction and a second end arranged in the front-back direction, and the first end is perpendicular to the second end. A first connection structure is provided inside the first end, and a second connection structure is provided inside the second end. The first connection structure and the second connection structure can be steel plates, and the two steel plates are welded together. The first connection structure and the second connection structure can also be steel bar meshes arranged side by side, and concrete is poured at the two steel bar meshes arranged side by side.

[0044] Among them, one of the first formwork 1 and the second formwork 2 can be the wall formwork for concrete pouring 3, and the other can be a metal formwork, such as an aluminum formwork or a steel formwork. It can also be that both the first formwork 1 and the second formwork 2 are wall formworks for concrete pouring. In this embodiment, an example is given where both the first formwork 1 and the second formwork 2 are wall formworks for concrete pouring.

[0045] In this embodiment, one of the first formwork 1 and the second formwork 2 is an exterior wall, and the other is an interior wall. If one of the first formwork 1 and the second formwork 2 is a metal formwork, then the one that is the metal formwork is the exterior wall. If both the first formwork 1 and the second formwork 2 are wall formworks for concrete pouring, then either of them can be the exterior wall. For the outer side of the exterior wall (defining the side of the exterior wall away from the steel reinforcement cage as the outer side), a thermal insulation layer, exterior wall decoration, wooden wall panels, etc. can be installed. The thermal insulation layer, exterior wall decoration, wooden wall panels, etc. can be directly prefabricated on the outer side of the exterior wall as needed, so that during on-site construction, there is no need to process or decorate the outer side of the exterior wall, thereby reducing the workload of on-site construction and improving the production speed. Both the first formwork 1 and the second formwork 2 are precast modules made of steel bars and concrete pouring. Among them, both the first formwork 1 and the second formwork 2 are wall formworks with a thickness of 15 mm to 30 mm poured with ECC (engineered cementitious composite) concrete. Due to the high strength and good toughness of ECC concrete, for wall formworks of the same thickness poured, compared with wall formworks poured with ordinary concrete, their strength is higher. That is to say, in this application, when the strength of the wall formwork poured with ECC concrete is the same as that of the wall formwork poured with ordinary concrete, its thickness is smaller.

[0046] As Figures 1 to 3 shown, among them, the steel reinforcement cage includes a plurality of first steel bars 6 arranged at intervals in the vertical direction, a plurality of tie bars 12, and a plurality of second steel bars 5 arranged in parallel with the first formwork 1 and at intervals. The first steel bars 6, the second steel bars 5, the first edge member 13, and the second edge member are all connected to the tie bars 12. The plurality of tie bars 12 are arranged in multiple tie bar layers arranged in the vertical direction, and each tie bar layer includes a plurality of tie bars 12. Specifically, the tie bars 12 are arranged in the left-right direction, and the tie bars 12 are welded to the first steel bars 6, the second steel bars 5, and the structural columns. One end of the tie bar 12 is connected to the first formwork 1, and the other end is connected to the second formwork 2.

[0047] Among them, the tie bar 12 can be a first connecting rod with a straight structure, and both ends of the first connecting rod are respectively embedded in the first formwork 1 and the second formwork 2. It can also be that the tie bar 12 includes two second connecting rods arranged in parallel and at intervals up and down. The same ends of the two second connecting rods are vertically connected with a U-shaped connecting frame. The U-shaped connecting frame is arranged in parallel with the first formwork 1, and the U-shaped connecting frame is embedded in one of the first formwork 1 and the second formwork 2, and the other end of the second connecting rod is embedded in the other formwork.

[0048] AsFigures 1 to 3 As shown, when the tie bar 12 is the first connecting rod, a plurality of embedded anchor bars 7 extending in the vertical direction are installed in both the first formwork 1 and the second formwork 2. The plurality of embedded anchor bars 7 are arranged at intervals in the front-back direction, and the plurality of embedded anchor bars 7 are arranged in one-to-one correspondence with the plurality of tie bars 12 in each tie bar layer. One end of the tie bar 12 is connected to the embedded anchor bar 7 in the first formwork 1, and the other end of the tie bar 12 is connected to the embedded anchor bar 7 in the second formwork 2.

[0049] When the tie bar 12 includes a second connecting rod and a U-shaped connecting frame, the embedded anchor bar 7 is not installed in the formwork where the U-shaped connecting frame is located, and the embedded anchor bar 7 is provided in the other formwork. The second connecting rod is connected to the corresponding embedded anchor bar 7.

[0050] The steel reinforcement cage further includes a first edge member 13 and an L-shaped second edge member. Both the first edge member 13 and the second edge member extend in the vertical direction; the first formwork 1 and the second formwork 2 respectively have a first end and a second end with an L-shaped corner; the first edge member 13 is installed between the first ends of the first formwork 1 and the second formwork 2, and the second edge member is installed between the second ends of the first formwork 1 and the second formwork 2.

[0051] Specifically, the first edge member 13 includes a plurality of third steel bars extending in the vertical direction and a plurality of annular first stirrups arranged in the horizontal direction; the plurality of third steel bars are arranged in a cuboid shape, and the plurality of first stirrups are sleeved on the plurality of third steel bars arranged in a cuboid shape at intervals in the vertical direction.

[0052] Further, the second edge member includes a first component 141 arranged in the left-right direction, a second component 142 arranged in the front-back direction, and four member steel bars 143 located between the first component 141 and the second component 142. Both the first component 141 and the second component 142 include a plurality of fifth steel bars extending in the vertical direction. The first component 141 includes a plurality of annular second stirrups arranged in the horizontal direction, and the second component 142 includes a plurality of annular third stirrups arranged in the horizontal direction. The second stirrups and the first stirrups are located in the same extension direction, and the third stirrups are perpendicular to the second stirrups. The plurality of fifth steel bars are arranged in two parallel and spaced fifth steel bar columns, and the second stirrups and the third stirrups are respectively sleeved on the corresponding fifth steel bar columns. The four member steel bars are both placed inside the second stirrups and inside the third stirrups.

[0053] Embodiment 2

[0054] Different from Embodiment 1, in this embodiment, one of the first formwork 1 and the second formwork 2 is a wall formwork cast with concrete, and the other is a metal formwork. Among them, the metal formwork can be an aluminum formwork or a steel formwork. Further, in this embodiment, the first formwork 1 is taken as the wall formwork cast with concrete, and the second formwork 2 is taken as the metal formwork as an example.

[0055] The L-shaped wall formwork for modular buildings further includes a plurality of tension devices 8. The tension devices 8 are used to connect the first formwork 1 and the second formwork 2. The tension devices 8 are arranged perpendicular to the extending direction of the first formwork 1. One end of the tension device 8 is connected to the first formwork 1, and the other end is connected to the second formwork 2. The tension device 8 is connected to the steel reinforcement cage. Specifically, the steel reinforcement cage is used to resist shear force and increase the strength of the L-shaped wall formwork for modular buildings. The tension device 8 is perpendicular to the first formwork 1 and the second formwork 2, and both the first formwork 1 and the second formwork 2 extend in the front-rear direction. One end of the tension device 8 is connected to the corresponding embedded anchor bar 7, and the other end of the tension device 8 is detachably connected to the formwork of the metal formwork.

[0056] Specifically, in this embodiment, one end of the tension device 8 is embedded in the first formwork 1, and the other end is detachably connected to the second formwork 2. Further, the tension device 8 includes a first tension rod, a first nut, and a second tension rod. One end of the first tension rod is embedded in the first formwork 1, and the other end is threadedly connected with a first nut. The end of the first nut away from the first tension rod is placed inside the second formwork 2. One end of the second tension rod is fixedly connected with a connection head, and the other end passes through the second formwork 2 and is threadedly connected with the first nut. The first tension rod and the second tension rod are connected by the first nut, and the connection head is placed outside the second formwork 2, so that the tension device 8 connects the first formwork 1 and the second formwork 2.

[0057] As Figure 1 shown, both the embedded anchor bar 7 and the steel reinforcement cage are welded to the tension device 8. The plurality of tension devices 8 are divided into a plurality of tension layers arranged at intervals in the vertical direction; each tension layer includes a plurality of tension devices 8 arranged at intervals in the horizontal direction.

[0058] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity 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 present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium; it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present utility model, unless otherwise clearly specified and defined, when a first feature is "on" or "under" a second feature, it may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, when the first feature is "above", "over" and "on top of" the second feature, it may be that the first feature is directly above or obliquely above the second feature, or it merely means that the horizontal height of the first feature is higher than that of the second feature. When the first feature is "under", "below" and "beneath" the second feature, it may be that the first feature is directly below or obliquely below the second feature, or it merely means that the horizontal height of the first feature is lower than that of the second feature.

[0061] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples", etc., mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0062] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. An L-shaped wall form for modular construction, characterized in that: include: An L-shaped first template (1) and an L-shaped second template (2) are arranged in parallel and spaced apart; An L-shaped steel cage is installed in parallel between the first template (1) and the second template (2), one side of the steel cage is connected to the first template (1), and the other side is connected to the second template (2); The steel cage comprises a plurality of first steel bars (6) extending in a vertical direction and a plurality of L-shaped second steel bars (5) arranged in parallel with the first template (1) and at intervals; The plurality of first steel bars (6) are arranged in two first steel bar columns arranged in parallel and at intervals, and the plurality of second steel bars (5) are arranged in two second steel bar rows arranged in parallel and at intervals, the two second steel bar rows are respectively installed on opposite sides of the two first steel bar columns, and each second steel bar row comprises a plurality of second steel bars (5) arranged in parallel and at intervals in a vertical direction; The first steel bar (6) is connected to the second steel bar (5).

2. The L-shaped wall form for modular construction according to claim 1, characterized in that: The first formwork (1) and the second formwork (2) are both wall formworks for concrete pouring.

3. The L-shaped wall form for modular construction according to claim 1, characterized in that: One of the first formwork (1) and the second formwork (2) is a wall formwork for concrete pouring, and the other is a detachable metal formwork.

4. The L-shaped wall form for modular construction according to claim 2 or 3, characterized in that: The steel cage further comprises a first edge member (13) and an L-shaped second edge member, wherein the first edge member (13) and the second edge member are both arranged to extend in a vertical direction; The first template (1) and the second template (2) respectively have a first end and a second end with an L-shaped corner; The first edge member (13) is installed between the first ends of the first template (1) and the second template (2), and the second edge member is installed between the second ends of the first template (1) and the second template (2).

5. The L-shaped wall form for modular construction according to claim 4, characterized in that: The first edge member (13) comprises a plurality of third steel bars (112) extending in a vertical direction and a plurality of first annular stirrups (111) arranged in a horizontal direction; The plurality of third steel bars (112) are arranged in the shape of a rectangular parallelepiped, and the plurality of first stirrups (111) are sleeved on the plurality of third steel bars (112) arranged in the shape of a rectangular parallelepiped at intervals along the vertical direction.

6. The L-shaped wall form for modular construction according to claim 5, characterized in that: The second edge member comprises a first component (141), a second component (142) arranged in a horizontal direction, and a plurality of component steel bars arranged in a vertical direction; The first component (141) and the second component (142) both include a plurality of fifth steel bars extending in a vertical direction; The first component further includes a plurality of annular second stirrups arranged in a horizontal direction, and the second component further includes a plurality of annular third stirrups arranged in a horizontal direction, the second stirrups and the first stirrups are located in the same extension direction, and the third stirrups are perpendicular to the second stirrups; The plurality of fifth steel bars are arranged in parallel and spaced apart in a fifth steel bar row, and the second stirrups and the third stirrups are respectively sleeved on the corresponding fifth steel bar rows; A plurality of component steel bars (143) are placed in the second stirrups and the third stirrups.

7. The L-shaped wall form for modular construction according to claim 6, characterized in that: The steel cage further comprises a plurality of tie bars (12), wherein the plurality of tie bars (12) are arranged perpendicular to the first formwork (1) and the second formwork (2), and the first steel bar (6), the second steel bar (5), the first edge member (13) and the second edge member are all connected to the tie bars (12).

8. The L-shaped wall form for modular construction according to claim 7, characterized in that: The plurality of tie bars (12) are arranged in a plurality of tie bar layers arranged in a vertical direction, and each tie bar layer comprises a plurality of tie bars (12) arranged at intervals in a horizontal direction.

9. The L-shaped wall form for modular construction according to claim 8, characterized in that: The tie rod (12) is a first connecting rod, and a plurality of pre-buried anchor bars (7) extending in a vertical direction are installed inside the wall formwork of the first formwork (1) and the second formwork (2), and one end of the tie rod (12) is connected to the pre-buried anchor bar (7).

10. The L-shaped wall form for modular construction according to claim 9, characterized in that: The tie rod (12) comprises two second connecting rods which are arranged in parallel and spaced apart from each other, and a U-shaped connecting frame is connected to the same end of the two second connecting rods, and the U-shaped connecting frame is arranged in parallel with the first template (1).

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