A steel mesh formwork component, LP wall and construction process thereof

Abstract

The present invention belongs to the field of building construction technology, and specifically relates to a steel mesh formwork component, an LP wall and a construction process thereof, wherein the steel mesh formwork component comprises a standard section component and an overlap section component, wherein the standard section component and the overlap section component are vertically spliced ​​to form an integral steel mesh formwork component; the standard section component comprises a first steel bar assembly, a plurality of first clamping pieces welded inside the first steel bar assembly, and a first mold net fixed at both ends of the first clamping piece; the center spacing of adjacent first clamping pieces is the required modulus; the overlap section component comprises a second steel bar assembly, a plurality of second clamping pieces welded inside the second steel bar assembly, and a second mold net fixed at both ends of the second clamping piece, wherein the center spacing of adjacent second clamping pieces, part of the spacing is the required modulus, and part of the spacing is adjusted according to the total height of the wall. The present invention eliminates the mismatch between the steel mesh modulus and the building elevation through the overlap section component, and can achieve precise control of the building elevation.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a steel mesh template component, an LP wall and a construction process thereof. Background Art

[0002] The traditional cast-in-place construction model is to support formwork, tie steel bars, and pour concrete on site. This construction model pollutes the surrounding environment of the construction site and has a long construction period. In order to solve the problems existing in the traditional construction industry, a new type of industrialized construction has emerged, namely prefabricated construction. Prefabricated construction is an industrialized way of producing buildings. The main components of the building are produced and processed in the factory, and the components are sent to the construction site for assembly and assembly, and then concrete is poured to form a whole.

[0003] Up to now, in prefabricated buildings, the reinforced concrete construction system has developed rapidly due to its advantages of light weight, easy installation, and excellent dimensional accuracy. The reinforced concrete construction system can make walls, slabs, beams, and columns separately and assemble them on site. Compared with the traditional cast-in-place process, this construction process saves tie rods and a large number of auxiliary supports, improves the construction environment, increases the operation space and construction channels, and reduces the probability of construction accidents. The wall made of reinforced concrete components is called a shear wall. The shear wall includes a steel bar assembly formed by cross-welding of transverse steel bars and vertical steel bars, and a clamping piece welded on the steel bar assembly. The clamping piece has a clamping mouth at both ends for clamping the transverse ribs of the steel mesh. Therefore, the spacing of the transverse ribs on the steel mesh is the same as the spacing of the clamping piece. The spacing of the transverse ribs on the steel mesh is called the module. At the same time, during the construction process, considering that the wall casting concrete requires steel mesh support, the upper elevation line of the wall should coincide with the uppermost clamping piece, and the lower elevation line should coincide with the lowermost clamping piece. However, for the domestic market, the modulus is usually set to a relatively regular integer such as 100mm, 150mm, etc. When the wall height is also a regular integer, it is easier to control the elevation. For the international market, the modulus is generally 96.5mm, which will cause the top or bottom clamping piece to exceed the elevation line. Figure 1-2 As shown, the building elevation cannot be accurately controlled. Summary of the invention

[0004] In order to solve the above technical problems existing in the prior art, the present invention provides a steel mesh formwork component, an LP wall and a construction process thereof, aiming to effectively cope with the mismatch between the module and the actual building elevation in the international market, and thereby accurately control the building elevation.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A steel mesh formwork component, comprising a standard segment component and an overlap segment component, wherein the standard segment component and the overlap segment component are vertically spliced ​​to form an integral steel mesh formwork component;

[0007] The standard section component includes a first steel bar assembly, a plurality of first retaining plates welded inside the first steel bar assembly, and a first mold mesh fixed at both ends of the first retaining plates; the center distance between adjacent first retaining plates is the required module; the lap section component includes a second steel bar assembly, a plurality of second retaining plates welded inside the second steel bar assembly, and a second mold mesh fixed at both ends of the second retaining plates, the center distance between adjacent second retaining plates, part of which is the required module, and part of which is adjusted according to the total height of the wall.

[0008] Furthermore, the standard segment component is arranged above the overlapping segment component, and the upper surface of the first clamping piece at the top of the standard segment component coincides with the elevation line above the wall.

[0009] Furthermore, a first supporting steel bar is welded to the lower surface of the first holding piece at the bottom of the standard section component, and the first supporting steel bar overlaps the upper surface of the second holding piece at the top of the overlapping section component.

[0010] Furthermore, a second supporting steel bar is welded to the lower surface of the second holding piece at the bottom of the overlap section component, and the second supporting steel bar is located above the elevation line below the wall and is tangent to the elevation line below the wall.

[0011] Furthermore, the second second holding piece of the overlapping section member from top to bottom is set as holding piece I, the second second holding piece of the overlapping section member from bottom to top is set as holding piece II, and the first second holding piece of the overlapping section member from bottom to top is set as holding piece III;

[0012] The center distance between the clamping piece I and the first clamping piece at the bottom of the standard section component is the required modulus; the center distance between the clamping piece I and the clamping piece II is an integer multiple of the required modulus, and the center distance between the clamping piece II and the clamping piece III is set according to the total height of the wall.

[0013] Furthermore, the total height of the standard section component is the maximum restricted height for transportation.

[0014] Furthermore, the first mold mesh and the second mold mesh are both made of steel plates.

[0015] The present invention also provides a LP wall, comprising the above-mentioned steel mesh formwork component and concrete poured inside the steel mesh formwork component.

[0016] The present invention also provides a LP wall construction process, which is applied to the above-mentioned LP wall and comprises the following steps:

[0017] S1. Before pouring the concrete of the lower wall or the foundation concrete, install the second steel bar assembly of the overlap section component, and control the elevation positioning error and axis positioning error of the second steel bar assembly within a certain range;

[0018] S2, pouring and curing the lower wall or foundation;

[0019] S3. After curing, install the standard segment components and overlap the first support steel bar and the second steel bar assembly;

[0020] S4, installing the second mesh on both sides of the second reinforcement assembly;

[0021] S5. Install the floor slab above the standard segment component, and install the second steel bar assembly of the upper wall above the floor slab, with the lower end of the second steel bar assembly of the upper wall buried in the wall of the current layer, and the upper end of the second steel bar assembly of the upper wall located above the wall of the current layer;

[0022] S6. Pour concrete.

[0023] Furthermore, the second mold mesh is clamped on the second clamping plate in sequence from top to bottom until the II clamping plate, and then the second mold mesh extends downward perpendicularly to the second steel bar assembly to the elevation line below the wall, and then extends horizontally outward.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention divides the shear wall components into standard section components and lap section components. The building elevation is controlled by the standard section components, and the spacing of the holding plates inside the lap section components can be adjusted according to the wall building elevation. The mismatch between the steel mesh modulus and the building elevation is eliminated by the lap section components, thereby achieving precise control of the building elevation.

[0026] In the overlap section component, the center distance between the holding piece I and the first holding piece at the bottom of the standard section component is the required modulus; the center distance between the holding piece I and the holding piece II is an integer multiple of the required modulus, and the center distance between the holding piece II and the holding piece III is set according to the total height of the wall; during the construction process, the wall is fixed by the steel mesh from top to bottom to the holding piece II to ensure the casting strength and casting quality of the wall, and the steel mesh between the holding piece II and the holding piece III is located at the bottom of the wall, which can be combined with other reinforcement methods at the bottom of the wall to ensure the quality of the wall casting process; so that the construction process of the present invention can not only ensure the precise control of the building elevation, but also has a higher casting quality.

[0027] The total height of the standard section component in the present invention is the maximum restricted height for transportation, which can not only meet the transportation requirements but also maximize the transportation efficiency and reduce the transportation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a shear wall component of the prior art.

[0029] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0030] Figure 3 This is a schematic diagram of a steel mesh template component according to Embodiment 1 of the present invention, wherein only a partial structure of the next layer of standard segment components is shown.

[0031] Figure 4 for Figure 3 A partial enlarged view of point B in the middle.

[0032] Figure 5 for Figure 3 A partial enlarged view of point C in the middle.

[0033] Figure 6 This is a schematic diagram of the structure of the steel mesh formwork component after construction of Example 1, in which the first mesh and the second mesh are hidden.

[0034] Figure 7 for Figure 6 A partial enlarged view of point D in the middle.

[0035] Figure 8 It is a schematic structural diagram of the overlap section component in the second embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1-standard section component, 101-first steel bar assembly, 102-first clamping plate, 103-first supporting steel bar, 2-lap section component, 201-second steel bar assembly, 202-second clamping plate, 203-second supporting steel bar, 3-lower standard section component. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present invention, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the protection scope of the present invention.

[0039] It should be noted that, unless otherwise specifically stated, the relative arrangement of the components and steps, numerical expressions and numerical values ​​described in these embodiments should not be understood as limiting the scope of the present invention. In addition, it should be understood that, for ease of description, the sizes of the various components shown in the drawings are not necessarily drawn according to the actual proportional relationship, for example, the thickness, width, length or distance of some units may be magnified relative to other structures.

[0040] The following description of the exemplary embodiments is merely illustrative and is not intended to limit the present invention and its application or use in any sense. Techniques, methods and devices known to ordinary technicians in the relevant field may not be discussed in detail here, but where applicable, these techniques, methods and devices should be considered as part of this specification.

[0041] Embodiment 1

[0042] like Figure 3 As shown, this embodiment provides a steel mesh template component, including a standard segment component 1 and an overlap segment component 2, wherein the standard segment component 1 and the overlap segment component 2 are vertically spliced ​​to form an integral steel mesh template component;

[0043] like Figure 4 As shown, the standard segment component 1 includes a first steel bar assembly 101, a plurality of first retaining pieces 102 welded inside the first steel bar assembly 101, and a first mold mesh (not shown in the figure) fixed at both ends of the first retaining pieces 102; the center distances between adjacent first retaining pieces 102 are all the required modulus; Figure 5 As shown, the overlap section component 2 includes a second steel bar assembly 201, a plurality of second retaining plates 202 welded inside the second steel bar assembly 201, and a second mold mesh (not shown in the figure) fixed at both ends of the second retaining plates 202, and the center spacing between adjacent second retaining plates 202, wherein part of the spacing is the required module, and part of the spacing is adjusted according to the total height of the wall.

[0044] The standard segment component 1 is arranged above the overlap segment component 2, and the upper surface of the first holding piece 102 at the top of the standard segment component 1 coincides with the elevation line L1 above the wall. After the elevation line L1 above the wall is delineated, the upper end position of the standard segment component 1 is determined according to the height position of the elevation line L1 above the wall, thereby being able to accurately control the height of the wall building.

[0045] The first steel bar assembly 101 includes transverse steel bars and vertical steel bars, the transverse steel bars are arranged at equal intervals in the transverse direction, the vertical steel bars are arranged at equal intervals in the vertical direction, and both the transverse steel bars and the vertical steel bars are provided in two groups on the left and right sides, and each group of transverse steel bars and vertical steel bars are welded to each other; the first clamping piece 102 is welded to the transverse steel bars and vertical steel bars of the two groups on the left and right sides, and the two ends of the first clamping piece 102 extend out of the first steel bar assembly 101 to clamp the first mold net. The first clamping piece 102 is provided with clamping openings at both ends, and barbs are provided on both sides of the clamping openings to clamp the first mold net.

[0046] The second steel bar assembly 201 also includes transverse steel bars and vertical steel bars. The transverse steel bars are arranged at equal intervals in the horizontal direction, and the transverse steel bars are provided in two groups on the left and right. The vertical steel bars are arranged at equal intervals in the vertical direction, and they are also provided in two groups on the left and right. However, the upper and lower ends of the vertical steel bars opposite to each other are bent inwards, and are welded into a ring shape by butt welding. Each group of transverse steel bars and vertical steel bars are welded to each other, and the second clamping piece 202 is welded to the transverse steel bars and vertical steel bars of the two groups on the left and right. The two ends of the second clamping piece 202 extend out of the second steel bar assembly 201 to clamp the second mold net. The first mold net and the second mold net are both made of steel plates, and the structures of the two are the same. The first mold net and the second mold net are both provided with transverse ribs connected to the clamping piece, and the spacing of the transverse ribs is the required module. In this embodiment, the spacing of the transverse ribs is 96.5mm.

[0047] like Figure 4 As shown, the first support steel bar 103 is welded to the lower surface of the first holding piece 102 at the bottom of the standard section component 1, and the side contact point and the upper contact point of the first support steel bar 103 are both welding points, and the first support steel bar 103 has been welded to the standard section component 1 before construction; the first support steel bar 103 overlaps the upper surface of the second holding piece 202 at the top of the lap section component 2, and the standard section component 1 and the lap section component 2 are fixedly connected. The connection between the standard section component 1 and the lap section component 2 is to use the deadweight of the standard section component to directly press on the lap section component. As long as the axis is ensured not to deviate, the component stirrups, main bars, and other components (such as walls) will limit the displacement of the first support steel bar, thereby meeting the allowable error of the construction.

[0048] like Figure 5 As shown, the lower surface of the second holding piece 202 at the bottom of the overlap section component 2 is welded with the second supporting steel bar 203, and the side contact point and the upper contact point of the second supporting steel bar 203 are both welding points, and the second supporting steel bar 203 has also been welded to the overlap section component 2 before construction; the second supporting steel bar 203 is located above the elevation line L2 below the wall and is tangent to the elevation line L2 below the wall. That is, the distance between the upper surface of the first holding piece 102 at the top of the standard section component 1 and the lowest point of the second supporting steel bar 203 is the distance between the elevation line L1 above the wall and the elevation line L2 below the wall, and is also the wall building elevation H.

[0049] The first supporting steel bar 103 and the second supporting steel bar 203 are both made of steel bars with a diameter of 8 mm. In other embodiments, steel bars with other diameters may also be used.

[0050] like Figure 7As shown, the second second holding piece 202 of the overlapping section member 2 from top to bottom is set as holding piece I, the second second holding piece 202 of the overlapping section member 2 from bottom to top is set as holding piece II, and the first second holding piece 202 of the overlapping section member 2 from bottom to top is set as holding piece III; the center distance between holding piece I and the first holding piece 102 at the bottom of the standard section member 1 is the required modulus. In this embodiment, the modulus is 96.5mm, and the center distance between holding piece I and the first holding piece 102 at the bottom of the standard section member 1 is 96.5mm; the center distance between holding piece I and holding piece II is an integer multiple of the required modulus, that is, an integer multiple of 96.5mm, and a second holding piece 202 is set every 96.5mm. The center distance between holding piece II and holding piece III is set according to the total height of the wall, that is, the size difference caused by the mismatch between the wall building elevation and the modulus is adjusted by the center distance between holding piece II and holding piece III.

[0051] The total height of the standard segment component 1 is the maximum height limit for transportation. For example, if the maximum height limit for transportation is 2700 mm, then the total height of the standard segment component 1 is 2700 mm. Figure 3 As shown in , the total height of the standard segment component 1 is H1, that is, the maximum distance between the clamping pieces at both ends of the standard segment component 1.

[0052] Embodiment 2

[0053] The difference between this embodiment and the first embodiment lies in the second steel bar assembly structure of the overlap section component. The remaining structures and connection relationships are the same as those of the first embodiment and will not be described in detail again. Figure 8 As shown, the second steel bar assembly of this embodiment also includes transverse steel bars and vertical steel bars. The transverse steel bars are arranged at equal intervals horizontally, and there are two left and right groups of transverse steel bars. The vertical steel bars are arranged at equal intervals vertically, and there are also two left and right groups. However, the upper ends of the left and right vertical steel bars are bent inward and welded diagonally, and the lower ends of the vertical steel bars are not bent; each group of transverse steel bars and vertical steel bars are welded to each other, and the second clamping piece is welded to the left and right groups of transverse steel bars and vertical steel bars. The two ends of the second clamping piece extend out of the second steel bar assembly for clamping the second mold mesh.

[0054] Embodiment 3

[0055] The present invention also provides a LP wall, comprising the steel mesh formwork component of the first or second embodiment, and concrete poured inside the steel mesh formwork component. The LP wall of this embodiment adopts the steel mesh formwork component of the first or second embodiment, and can accurately control the height of the wall and improve the building quality.

[0056] Embodiment 4

[0057] The present invention also provides a LP wall construction process, which is applied to the LP wall in the third embodiment and includes the following steps:

[0058] S1. Before pouring the concrete of the lower wall or the foundation concrete, install the second steel bar assembly 201 of the overlap section member 2 on the lower standard section member 3 or the foundation, and control the elevation positioning error and axis positioning error of the second steel bar assembly 201 within 5 mm;

[0059] S2: The lower wall or foundation is poured and cured until it reaches sufficient strength, and then the next step of construction is continued;

[0060] S3, after curing, installing the standard segment component 1, adjusting the vertical position of the standard segment component 1, and overlapping the first supporting steel bar 103 and the second steel bar assembly 201;

[0061] S4. Install the second mesh on both sides of the second steel bar assembly 201; the second mesh is installed from top to bottom. If it cannot be installed at the clamping piece III, move the second mesh vertically downward to the elevation line L2 below the wall, and then extend it horizontally outward to fix the second mesh on the lower layer of steel bars or the foundation for reinforcement.

[0062] S5, installing the floor slab above the standard segment component 1, and installing the second steel bar assembly 201 of the upper wall above the floor slab, the lower end of the second steel bar assembly of the upper wall is buried in the wall of the current layer, and the upper end of the second steel bar assembly of the upper wall (the part above the lower elevation line of the upper wall) is located above the wall of the current layer;

[0063] S6. Pour concrete.

[0064] Steps S1-S6 are repeated repeatedly until the entire building is completed.

[0065] The above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, a person skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A steel mesh template component, characterized in that: It comprises a standard section component and an overlap section component, wherein the standard section component and the overlap section component are vertically spliced ​​to form an integral steel mesh formwork component; The standard section component includes a first steel bar assembly, a plurality of first retaining plates welded inside the first steel bar assembly, and a first mold mesh fixed at both ends of the first retaining plates; the center distance between adjacent first retaining plates is the required module; the lap section component includes a second steel bar assembly, a plurality of second retaining plates welded inside the second steel bar assembly, and a second mold mesh fixed at both ends of the second retaining plates, the center distance between adjacent second retaining plates, part of which is the required module, and part of which is adjusted according to the total height of the wall.

2. The steel mesh template component according to claim 1, characterized in that: The standard segment component is arranged above the overlapping segment component, and the upper surface of the first holding piece at the top of the standard segment component coincides with the elevation line above the wall.

3. The steel mesh template member according to claim 2, characterized in that: A first supporting steel bar is welded to the lower surface of the first holding piece at the bottom of the standard section component, and the first supporting steel bar overlaps the upper surface of the second holding piece at the top of the overlapping section component.

4. The steel mesh template component according to claim 2, characterized in that: A second supporting steel bar is welded to the lower surface of the second holding piece at the bottom of the overlap section component. The second supporting steel bar is located above the elevation line below the wall and is tangent to the elevation line below the wall.

5. The steel mesh template component according to claim 2, characterized in that: The second second holding piece of the overlapping section member from top to bottom is set as holding piece I, the second second holding piece of the overlapping section member from bottom to top is set as holding piece II, and the first second holding piece of the overlapping section member from bottom to top is set as holding piece III; The center distance between the clamping piece I and the first clamping piece at the bottom of the standard section component is the required modulus; the center distance between the clamping piece I and the clamping piece II is an integer multiple of the required modulus, and the center distance between the clamping piece II and the clamping piece III is set according to the total height of the wall.

6. The steel mesh template component according to claim 1, characterized in that: The total height of the standard section component is the maximum restricted height for transportation.

7. The steel mesh template member according to claim 1, characterized in that: The first mold mesh and the second mold mesh are both made of steel plates.

8. A LP wall, characterized in that: It comprises the steel mesh formwork component as described in any one of claims 1 to 7, and concrete poured inside the steel mesh formwork component.

9. A LP wall construction process, applied to the LP wall according to claim 8, characterized in that: The following steps are involved: S1. Before pouring the concrete of the lower wall or the foundation concrete, install the second steel bar assembly of the overlap section component, and control the elevation positioning error and axis positioning error of the second steel bar assembly within a certain range; S2, pouring and curing the lower wall or foundation; S3. After curing, install the standard segment components and overlap the first support steel bar and the second steel bar assembly; S4, installing the second mesh on both sides of the second reinforcement assembly; S5. Install the floor slab above the standard segment component, and install the second steel bar assembly of the upper wall above the floor slab, with the lower end of the second steel bar assembly of the upper wall buried in the wall of the current layer, and the upper end of the second steel bar assembly of the upper wall located above the wall of the current layer; S6. Pour concrete.

10. The LP wall construction process according to claim 9, characterized in that: The second mold mesh is clamped on the second clamping piece in sequence from top to bottom until the II clamping piece, and then the second mold mesh extends downward perpendicularly to the second steel bar assembly to the elevation line below the wall, and then extends horizontally outward.

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