Outer wall prefabricated part and modular assembly wall body

Abstract

The utility model discloses an outer wall prefabricated part and a modular assembly wall body. The outer wall prefabricated part comprises a first formwork, a second formwork, a first truss steel bar and a second truss steel bar. The second formwork and the first formwork are parallel in the first direction and arranged in a spaced mode so that a pouring space can be formed between the second formwork and the first formwork. The first truss steel bars are arranged at intervals in the second direction and extend in the third direction, and the two ends, in the first direction, of the first truss steel bars are anchored in the first formwork and the second formwork correspondingly; the second truss steel bars are arranged at intervals in the second direction and extend in the third direction; the second truss steel bars and the first truss steel bars are alternately arranged in the second direction; the first ends, in the first direction, of the second truss steel bars are anchored in the second formwork, and the second ends, in the first direction, of the second truss steel bars at least extend into the pouring space; the first direction is perpendicular to the surface of one side, facing the second mold shell, of the first mold shell, and the second direction and the third direction are perpendicular to the first direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of modular building, and in particular to a prefabricated outer wall component and a modular assembly wall. BACKGROUND

[0002] At present, the modular building of the concrete box mode significantly improves the construction efficiency by virtue of high integration. The wall form is used as a formwork for supporting and forming the post-cast concrete, which can maintain the position and shape of the concrete before the concrete hardens and forms.

[0003] However, the design does not consider the interaction with the post-cast concrete, the wall form does not take into account the strength of the shear wall, and the wall form does not cooperate with the steel structure inside the shear wall, which makes it still necessary to perform a large amount of binding operation on the steel bars before pouring the concrete in the wall form, not only the work efficiency is low, but also a large amount of waste is generated due to the steel bar binding operation, which affects the green level. CONTENT OF THE INVENTION

[0004] The present application provides a prefabricated outer wall component and a modular assembly wall to solve the problem that the existing wall form only has a shaping effect between the wall form and the shear wall, resulting in low construction efficiency and waste discharge at the construction site.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] The first aspect of the present application provides a prefabricated outer wall component, comprising:

[0007] a first formwork;

[0008] a second formwork, the second formwork is arranged in parallel and spaced apart along a first direction with the first formwork to form a pouring space between the second formwork and the first formwork;

[0009] a plurality of first truss steels, the plurality of first truss steels are arranged in a second direction in a spaced apart manner, the first truss steels extend in a third direction, and the two ends of the first truss steels along the first direction are anchored in the first formwork and the second formwork, respectively;

[0010] a plurality of second truss steels, the plurality of second truss steels are arranged in the second direction in a spaced apart manner, the second truss steels extend in the third direction; the second truss steels and the first truss steels are arranged alternately in the second direction; the first end of the second truss steels along the first direction is anchored in the second formwork, and the second end of the second truss steels along the first direction extends at least into the pouring space;

[0011] The first direction is perpendicular to a surface of the first formwork facing the second formwork, and the second direction and the third direction are both perpendicular to the first direction.

[0012] In some modified embodiments of the first aspect of the present application, the prefabricated outer wall component further comprises connecting steel bars.

[0013] The first truss steel bar is provided with at least two connecting steel bars in the first direction at one end thereof in the third direction, and the connecting steel bars extend into the pouring space of the prefabricated outer wall component adjacent to the prefabricated outer wall component in which the connecting steel bars are located.

[0014] In some modified embodiments of the first aspect of the present application, the prefabricated outer wall component, wherein the first truss steel bar comprises a first steel bar, a second steel bar and a top chord steel bar.

[0015] The top chord steel bar extends in the third direction, and the first steel bar and the second steel bar are symmetrically arranged on both sides of the top chord steel bar in the second direction.

[0016] The first steel bar and the second steel bar are continuously bent in the third direction, and form a plurality of first tie segments arranged in the third direction at one end thereof facing the first formwork and a plurality of second tie segments arranged in the third direction at one end thereof facing the second formwork; the first tie segments and the second tie segments are alternately arranged in the third direction.

[0017] The first truss steel bar is provided with at least the first tie segments and the second tie segments, and the first tie segments and the second tie segments are respectively anchored in the first formwork and the second formwork.

[0018] In some modified embodiments of the first aspect of the present application, the prefabricated outer wall component, wherein one end of the first steel bar and the second steel bar facing the second formwork is connected to the top chord steel bar, and one end of the first steel bar and the second steel bar facing the first formwork is away from each other.

[0019] In some modified embodiments of the first aspect of the present application, the prefabricated outer wall component, wherein the first tie segments and the second tie segments are parallel to the bent segments of the first formwork.

[0020] In some modified embodiments of the first aspect of the present application, the prefabricated outer wall component, wherein the first truss steel bar further comprises a first bottom chord steel bar.

[0021] The first bottom chord steel bar is arranged on one side of the first tie segment facing the first tie segment symmetrically arranged in the second direction.

[0022] In some variations of the first aspect of the application, the prefabricated exterior wall component as defined above, wherein the second truss reinforcement comprises a third reinforcement and a fourth reinforcement;

[0023] The third reinforcement and the fourth reinforcement are symmetrically arranged relative to a first straight line, the first straight line being parallel to the third direction;

[0024] The third reinforcement and the fourth reinforcement are both continuously bent along the third direction, forming a plurality of third tie segments arranged along the third direction at one end towards the second formwork, the third reinforcement being connected to the fourth reinforcement at one end towards the first formwork;

[0025] The third tie segments are anchored in the second formwork.

[0026] In some variations of the first aspect of the application, the prefabricated exterior wall component as defined above, wherein the second truss reinforcement further comprises a second bottom chord reinforcement;

[0027] The second bottom chord reinforcement is arranged at one side of the third tie segment towards a third tie segment symmetrically arranged in the second direction;

[0028] The third tie segment is a bent segment parallel to the second formwork.

[0029] In some variations of the first aspect of the application, the prefabricated exterior wall component as defined above, further comprising a plurality of first transverse distribution reinforcements, a plurality of second transverse distribution reinforcements, a plurality of longitudinal distribution reinforcements, and a plurality of construction reinforcements;

[0030] The first formwork has a plurality of longitudinal distribution reinforcements arranged along the second direction at one side surface towards the second formwork, the longitudinal distribution reinforcements extending along the third direction, and each of the first truss reinforcement is connected to one longitudinal distribution reinforcement at one side along the second direction;

[0031] The first formwork has a plurality of first transverse distribution reinforcements arranged along the third direction at one side surface towards the second formwork, the first transverse distribution reinforcements extending along the second direction, and each of the first transverse distribution reinforcements is connected to the first truss reinforcement at one end towards the first formwork;

[0032] The second formwork has a plurality of second transverse distribution reinforcements arranged along the third direction at one side surface towards the first formwork, the second transverse distribution reinforcements extending along the second direction, and each of the second transverse distribution reinforcements is connected to the first truss reinforcement and the second truss reinforcement at one end towards the second formwork;

[0033] The second formwork is provided with a plurality of construction steels on one side surface thereof facing the first formwork, the construction steels extending along the third direction and being arranged in the second truss steel.

[0034] The second aspect of the present application provides a modular assembly cavity, which comprises at least one aforementioned outer wall prefabricated component.

[0035] Compared with the prior art, the outer wall prefabricated component provided by the present application connects the first formwork and the second formwork together to form an integrated wall mold through the first truss steel, which can provide stiffness for the wall mold during later concrete pouring, thereby reducing deformation and cracking; the alternating arrangement of the first truss steel and the second truss steel can enhance the interfacial shear resistance between the post-poured concrete and the wall mold, can count the strength of the two formworks into the strength of the overall modular wall body, can avoid on-site steel binding operation, can improve efficiency, and can effectively reduce waste emissions caused by on-site binding; thereby solving the problem that the existing wall mold and shear wall only have a shaping effect, resulting in low construction efficiency and waste emissions at the construction site. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above and other objects, features and advantages of the exemplary embodiments of the present application will be readily understood through reading the detailed description of the exemplary embodiments of the present application below, with reference to the accompanying drawings. In the drawings, several embodiments of the present application are illustrated by way of example and not limitation, in which the same or corresponding elements are referred to with the same or corresponding reference numerals, in which:

[0037] Figure 1 A structural schematic view of the outer wall prefabricated component provided by the present embodiment is schematically shown;

[0038] Figure 2 A cross-sectional schematic view of the outer wall prefabricated component provided by the present embodiment is schematically shown;

[0039] Figure 3 A structural cooperation schematic view of the first formwork and the first truss steel in the outer wall prefabricated component provided by the present embodiment is schematically shown;

[0040] Figure 4 A front view of the first truss steel provided by the present embodiment is schematically shown;

[0041] Figure 5 A top view of the first truss steel provided by the present embodiment is schematically shown;

[0042] Figure 6 A side view of the first truss steel provided by the present embodiment is schematically shown;

[0043] Figure 7A structural cooperation schematic view of the second formwork and the second truss reinforcement in the outer wall prefabricated component provided by the embodiment is shown schematically;

[0044] Figure 8 A front view of the second truss reinforcement provided by the embodiment is shown schematically;

[0045] Figure 9 A top view of the second truss reinforcement provided by the embodiment is shown schematically;

[0046] Figure 10 A side view of the second truss reinforcement provided by the embodiment is shown schematically;

[0047] Figure 11 A manufacturing flowchart of the outer wall prefabricated component provided by the embodiment is shown schematically;

[0048] Explanation of reference numerals: first formwork 1, second formwork 2, first truss reinforcement 3, first reinforcement 31, second reinforcement 32, top chord reinforcement 33, first tie segment 34, second tie segment 35, first bottom chord reinforcement 36, second truss reinforcement 4, third reinforcement 41, fourth reinforcement 42, third tie segment 43, second bottom chord reinforcement 44, connecting reinforcement 5, first transverse distribution reinforcement 6, second transverse distribution reinforcement 7, longitudinal distribution reinforcement 8, construction reinforcement 9, first direction a, second direction b, third direction c, cushion block d. DETAILED DESCRIPTION

[0049] Exemplary embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood, and so that the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0050] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be understood as the common meanings understood by those skilled in the art to which the present application belongs.

[0051] Modular assembly system is an assembly construction with box modules having independent functions as units. Compared with traditional component assembly system, modular assembly can realize factory production, integrated decoration, and improve the level of building industrialization. In addition, the high integration of modules also greatly reduces the construction process on site, reduces the emission of waste on site, and significantly improves the construction efficiency and green level. Therefore, the modular assembly system is more in line with the requirements of new building industrialization, and the research on modular assembly system is also more conducive to the development of new building industrialization.

[0052] Currently, the modular building of the concrete box mode significantly improves the construction efficiency with high integration. It supports and forms the post-cast concrete by taking the wall form as the removable formwork, which can maintain the position and shape of the concrete before it hardens and forms.

[0053] However, the co-action of the wall form and the post-cast concrete is not considered in the design, the wall form does not count the strength of the shear wall, and the wall form does not cooperate with the steel structure inside the shear wall, which makes it still need to bind a large amount of steel bars on site before pouring in the wall form, not only the work efficiency is low, but also a large amount of waste is generated due to the steel bar binding work, which affects the green level.

[0054] The technical solution of the embodiment of the present application is to solve the above technical problems, and the general idea is as follows:

[0055] Embodiment 1

[0056] Reference to Figure 1 and attached Figure 2 , the outer wall prefabricated component provided by the embodiment includes a first formwork 1, a second formwork 2, a plurality of first truss steels 3 and a plurality of second truss steels 4; the second formwork 2 is arranged in parallel and spaced apart along a first direction a with the first formwork 1 to form a pouring space between the second formwork 2 and the first formwork 2; a plurality of first truss steels 3 are arranged in parallel along a second direction b, the first truss steel 3 extends along a third direction c, and the two ends of the first truss steel 3 along the first direction a are respectively anchored in the first formwork 1 and the second formwork 2; a plurality of second truss steels 4 are arranged in parallel along the second direction b, and the second truss steel 4 extends along the third direction c; the second truss steel 4 and the first truss steel 3 are alternately arranged along the second direction b; the first end of the second truss steel 4 along the first direction a is anchored in the second formwork 2, and the second end of the second truss steel 4 along the first direction a at least extends into the pouring space.

[0057] Wherein, the first direction a is perpendicular to the surface of the first formwork 1 towards the second formwork 2 side, and the second direction b and the third direction c are both perpendicular to the first direction a.

[0058] It can be understood that, in order to solve the problem that the existing wall formwork only plays a shaping role between the wall formwork and the shear wall, resulting in low construction efficiency and waste discharge at the construction site, the outer wall prefabricated component provided in the embodiment forms an integrated wall formwork structure by anchoring the first formwork 1 and the second formwork 2 at both ends of the first truss steel bar 3, and cooperates with the second truss steel bar 4 to be anchored with the second formwork 2 and extended into the pouring space, so that after the post-pouring concrete operation, the concrete, the steel bar and the two formworks form an integrated wall structure, which can jointly bear the load to meet the building function requirements, not only improve the strength and shear resistance of the final wall, but also cancel the steel bar binding work on site through prefabrication, simplify the assembly process and greatly reduce the waste discharge on site, and improve the green level.

[0059] In the embodiment, the outer wall prefabricated component can be, but is not limited to, a prefabricated part of a modular assembly wall outer wall, for example: a prefabricated part of a type of environmental residential house outer wall, which can be directly exposed to the external environment during use or construction, and can be the outer wall of a room or the outer wall shared by several rooms. In the embodiment, the first direction a, the second direction b and the third direction c are perpendicular to each other, and in actual construction, the first direction a is the thickness direction of the wall, and the second direction b and the third direction c are the length direction and the height direction of the wall, respectively.

[0060] In the embodiment, the first formwork 1 and the second formwork 2 are rigid structures, which can be, but are not limited to, plate structures, and can be prepared on an automatic steel mold table turnover device using concrete, molten metal or the like. The first formwork 1 and the second formwork 2 can be identical or different, as long as they can form a pouring space. The pouring space between the first formwork 1 and the second formwork 2 is used for pouring concrete on site to form a stable modular assembly wall. In the embodiment, the first formwork 1 can face the external environment, and the second formwork 2 can also face the external environment. In the following description of the embodiment, the first formwork 1 is taken as an example to face the external environment. Since the outer wall prefabricated component can be directly exposed to the external environment during use or construction, at least the formwork facing the external environment needs to have durability and weather resistance. Therefore, in the embodiment, the formwork can be combined with a thermal insulation layer, an outer veneer and the like to form a composite formwork structure, a steel mesh can also be arranged inside the formwork, and high-strength concrete can also be used to enhance the structural strength and load-bearing capacity of the formwork. According to design experience or habit, combined with the thickness of the modular assembly wall, the diameter of the main steel bar in the wall and other factors, for a type of environmental ordinary high-rise concrete building wall, the size of the first formwork 1 and the second formwork 2 in the first direction a is at least 25 mm, for example: 25 mm, 30 mm.

[0061] The first truss steel bar 3 and the second truss steel bar 4 are both rigid structures, and can be formed by multiple steel bars. The first truss steel bar 3 and the second truss steel bar 4 can disperse and transfer loads between the first formwork 1 and the second formwork 2, between the two formworks and the post-cast concrete, and improve the load bearing capacity and rigidity of the structure. The first truss steel bar 3 and the second truss steel bar 4 can be linear along the third direction c, or can be non-linear. The two ends of the first truss steel bar 3 in the first direction a can be of any shape, such as pointed, ring-shaped, bent, etc., to improve the anchoring strength with the first formwork 1 and the second formwork 2 and the post-cast concrete. The first truss steel bar 3 and the second truss steel bar 4 can be linear, bent, etc. in the first direction a, and can be parallel to the straight line along which the first direction a is located, or can be inclined at a specified angle with the first direction a, etc. In the embodiment, the two ends of the first truss steel bar 3 are anchored to the first formwork 1 and the second formwork 2 at the same time, so that the first formwork 1 and the second formwork 2 form an integrated wall form structure. The second truss steel bar 4 is anchored to the second formwork 4 and extends into the pouring space, so that the post-cast concrete can form an integrated prefabricated wall with the two formworks through the second truss steel bar 4 and part of the structure of the first truss steel bar 3. The two formworks are no longer only used as a demoulding template, but are used together with the steel bars and the concrete to bear loads and disperse forces, thereby improving the strength, rigidity and shear resistance of the modular assembly wall. At the same time, the first truss steel bar 3 and the second truss steel bar 4 are prefabricated in the outer wall prefabricated component before the post-concrete, and the binding work of the steel bars in the wall is omitted on site, thereby greatly improving the assembly efficiency on site. The two ends of the first truss steel bar 3 along the first direction a can be anchored during the preparation of the first formwork 1 and the second formwork 2. For example, referring to the attached drawings, the first truss steel bar 3 is arranged in the pouring space, and the first end of the first truss steel bar 3 along the first direction a is provided with a spacer d. The first end of the first truss steel bar 3 is raised to a certain height by the spacer d, and then the first formwork 1 is poured with concrete to anchor the spacer d and the first end of the first truss steel bar 3 at the same time. Correspondingly, the second truss steel bar 4 is arranged in the pouring space, and the first end of the second truss steel bar 4 along the first direction a is provided with a spacer d. The first end of the second truss steel bar 4 and the second end of the first truss steel bar 3 along the first direction a are raised to a certain height by the spacer d, and then the second formwork 4 is poured with concrete to anchor the spacer d, the second end of the first truss steel bar 3 and the first end of the second truss steel bar 4 at the same time. Figure 11 In the embodiment, the part of the first truss steel bar 3 and the second truss steel bar 4 anchored in the first formwork 1 and the second formwork 2 can have a certain size along the second direction b and the third direction c, so that the truss steel bar can be tightly connected with the inside of the formwork to ensure the anchoring strength and ensure that the first truss steel bar 3 and the second truss steel bar 4 will not be pulled out of the formwork during the construction process or the use process, thereby improving the overall structural strength of the outer wall prefabricated component. It is not difficult to understand that the side of the second truss steel bar 4 facing the first formwork 1 can be placed in the pouring space, such as at the midpoint of the pouring space along the first direction a, or can abut against the first formwork 1, or can be anchored in the first formwork 1. The actual strength and cost requirements can be designed and adjusted, and will not be described in detail here.

[0062] According to the above list, the external wall prefabricated component provided by the application connects the first formwork 1 and the second formwork 2 together to form an integrated wall mold through the first truss steel bars 3, which can provide stiffness for the wall mold during the later concrete pouring, reduce deformation and cracking; the alternating arrangement of the first truss steel bars 3 and the second truss steel bars 4 can enhance the interfacial shear resistance of the post-poured concrete and the wall mold, can count the strength of the two formworks into the strength of the overall modular wall body, can also avoid the on-site steel bar binding operation, improve the efficiency, and effectively reduce the waste emission caused by the on-site binding; thereby solving the problem that the existing wall mold and the shear wall only have a shaping effect, resulting in low construction efficiency and waste emission at the construction site.

[0063] Further, with reference to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , the external wall prefabricated component provided by the embodiment further includes connecting steel bars 5; one end of the first truss steel bars 3 in the third direction c is provided with at least two connecting steel bars 5 in the first direction a, and the connecting steel bars 5 extend out of the pouring space in the third direction c or the opposite direction of the third direction c, and are used for being inserted into the pouring space of the external wall prefabricated component adjacent to the external wall prefabricated component.

[0064] It can be understood that, in order to realize the matching assembly of multiple external wall prefabricated components, the connecting steel bars 5 are arranged in the embodiment, which can be prefabricated in the external wall prefabricated component with the first truss steel bars 3, improve the on-site assembly efficiency, for example: welding or binding; the connecting steel bars 5 can also be bound on the first truss steel bars 3 on site, which ensures the uniformity and transportation convenience of the external wall prefabricated component, and prevents the extending connecting steel bars 5 from affecting transportation. During on-site assembly, the connecting steel bars 5 can be connected to the upper end of the lower external wall prefabricated component first, and then the lower external wall prefabricated component is poured, the upper external wall prefabricated component is hoisted and connected to the connecting steel bars 5 at the upper end of the upper external wall prefabricated component, and then the upper external wall prefabricated component is poured, and so on. The connecting steel bars 5 in the embodiment can be in the form of a straight line, a bent shape, etc., as long as they meet the lap length requirement in the third direction c corresponding to the two adjacent external wall prefabricated components above and below, that is, not less than the seismic anchorage length of the longitudinal tensile steel bar, that is, the extension length of the connecting steel bars 5 in the third direction c in the two adjacent external wall prefabricated components above and below is not less than the seismic anchorage length of the longitudinal tensile steel bar. This reference setting is easily understood by those skilled in the art, and will not be described here. Correspondingly, in order to realize the connection of the adjacent external wall prefabricated components in the second direction c, steel bar structures extending out of the pouring space in the second direction c can be arranged on the formwork or truss steel bars in the embodiment. Similarly, the extension length and the length remaining in the pouring space should meet the lap length requirement.

[0065] In the embodiment, at least two connecting steels 5 are arranged in the first direction a at one end of the first truss steel 3 along the third direction c, i.e., the end facing downward during actual assembly. For example, refer to FIG. 1. Figure 2 The connecting steels 5 can be arranged at both ends of the first direction a, respectively. The connecting steels 5 can be tied or welded with the first truss steel 3, and the two connecting steels 5 can also be tied. The number of connecting steels 5 can be designed and adjusted according to actual needs, which is not limited herein. It can be understood that the other end of the first truss steel 3 along the third direction c, i.e., the end facing upward during actual assembly.

[0066] Further, refer to FIGS. 1 to 3, Figure 4 , FIG. 4, Figure 5 and FIG. 5, Figure 6 the outer wall prefabricated component provided by the embodiment includes a first truss steel 3, a first mold shell 1, and a second mold shell 2. The first truss steel 3 includes a first steel 31, a second steel 32, and a top chord steel 33. The top chord steel 33 extends along a third direction c. The first steel 31 and the second steel 32 are symmetrically arranged on both sides of the top chord steel 33 along a second direction b. The first steel 31 and the second steel 32 are continuously bent along the third direction c to form a plurality of first tie segments 34 arranged at intervals along the third direction c at one end facing the first mold shell 1, and a plurality of second tie segments 35 arranged at intervals along the third direction c at one end facing the second mold shell 2. The first tie segments 34 and the second tie segments 35 are alternately arranged along the third direction c. At least the first tie segments 34 and the second tie segments 35 of the first truss steel 3 are anchored in the first mold shell 1 and the second mold shell 2, respectively.

[0067] It can be understood that, in order to ensure the anchoring strength of the first truss steel 3 to the two mold shells, the first truss steel 3 in the embodiment is arranged in the form of including the first steel 31, the second steel 32, and the top chord steel 33. The top chord steel 33 is a straight steel. In the embodiment, the top chord steel 33 can be connected with the first steel 31 and the second steel 32 at the same time, which can be but is not limited to welding or tying, so as to ensure the overall strength of the first truss steel 3. The first steel 31 and the second steel 32 are continuously bent along the third direction, i.e., can be formed in a wave shape or a broken line shape. Figure 4 as shown in FIG. 6, and further form alternating peaks and troughs at both ends of the first direction a. The first steel 31 or the second steel 32 between adjacent peaks and troughs forms a web structure. Correspondingly, refer to FIGS. 1 to 5, Figure 4A second tie section 35 and a first tie section 34 are formed at the crest and trough of the wave, respectively. The first tie section 34 and the second tie section 35 are formed during the bending process of the reinforcing bar. In this embodiment, the first tie section 34 and the second tie section 35 can be parallel to the first formwork 1, can be along the first direction a, can be inclined at a specified angle to the straight line containing the first direction a, or can be continuously bent along a third direction c, so that the first tie section 34 and the second tie section 35 have certain dimensions in both the second direction b and the third direction c, so as to increase the anchorage area and area with the formwork and improve the anchorage strength; for example: refer to Appendix Figure 5 The first connecting section 34 and the second connecting section 35 are bent sections parallel to the first mold shell 1, and can be... Figure 5 The arc shape shown can also be wavy, pointed, U-shaped, etc. Of course, it is understood that the anchored part can be limited to the first tie section 34 and the second tie section 35, or it can include a section of web member that borders the first tie section 34 and a section of web member that borders the second tie section 35, which are both anchored together.

[0068] Further, see attached document. Figure 6 In the specific implementation of the prefabricated exterior wall component provided in this embodiment, the ends of the first reinforcing bar 31 and the second reinforcing bar 32 facing the second mold shell 2 are connected to the upper chord reinforcing bar 33, and the ends of the first reinforcing bar 31 and the second reinforcing bar 32 facing the first mold shell 1 are far apart from each other.

[0069] It is understandable that, in order to improve the strength of the first truss reinforcement 3, in this embodiment, the first reinforcement 31 and the second reinforcement 32 are arranged in an umbrella-like distribution relative to the upper chord reinforcement 33, that is... Figure 6 As shown, this enhances the support strength and stability in the first direction a. In this configuration, since the upper chord reinforcement 33 is located at the end of the first truss reinforcement 3 facing the second formwork 4, the upper chord reinforcement 33 can replace the vertically distributed reinforcement on the side of the second formwork 4, and refer to the attached diagram. Figure 6 The top chord reinforcement 33 is located at the tip of the umbrella-shaped distribution structure, rather than on either side of the second tie section 35. Therefore, the strength of the top chord reinforcement 33 needs to be equal to the strength of the two adjacent vertical distribution reinforcements. This means the radial cross-sectional area of ​​the top chord reinforcement 33 needs to be greater than or equal to twice the radial cross-sectional area of ​​the vertical distribution reinforcement in a typical wall. In other words, the diameter of the top chord reinforcement 33 can be [a certain value] times the diameter of the vertical distribution reinforcement in a typical wall. For example, if the diameter of the vertically distributed reinforcing bars in a typical wall is 8mm, 10mm, 12mm, 16mm, etc., then the diameter of the top chord reinforcing bar 33 can be...

[0070] Further, see attached document. Figure 6In the specific implementation of the prefabricated exterior wall component provided in this embodiment, the first truss reinforcement 3 further includes a first lower chord reinforcement 36; the first lower chord reinforcement 36 is disposed on the side of the first tie section 34 facing the first tie section 34 which is symmetrical to it in the second direction b.

[0071] Understandably, to ensure the strength of the first truss reinforcement 3, a first lower chord reinforcement 36 is provided in this embodiment. The first lower chord reinforcement 36 is a straight reinforcement. In this embodiment, the first lower chord reinforcement 36 is connected to the first tie section 34, which can be, but is not limited to, welding or binding. The first lower chord reinforcement 36 is provided on the side of the first tie section 34 that is symmetrical to it in the second direction b, so as to ensure the stability of the umbrella-shaped distribution of the first reinforcement 31 and the second reinforcement 32, thereby ensuring the overall strength of the first truss reinforcement 3. In this embodiment, the diameter of the first lower chord reinforcement 36 can be designed and adjusted according to structural needs, and can be a small-diameter reinforcement, such as 4mm, 6mm, etc.

[0072] Further, see attached document. Figure 8 Appendix Figure 9 and appendix Figure 10 In the specific implementation of the prefabricated exterior wall component provided in this embodiment, the second truss reinforcement 4 includes a third reinforcement 41 and a fourth reinforcement 42; the third reinforcement 41 and the fourth reinforcement 42 are symmetrically arranged with respect to a first straight line, and the first straight line is parallel to the third direction c; the third reinforcement 41 and the fourth reinforcement 42 are both continuously bent along the third direction c, and a plurality of third tie sections 43 are formed at intervals along the third direction c at one end facing the second mold shell 2; the end of the third reinforcement 41 facing the first mold shell 1 is connected to the end of the fourth reinforcement 42 facing the first mold shell 1; wherein, at least the third tie sections 43 on the second truss reinforcement 4 are anchored inside the second mold shell 2.

[0073] Understandably, in order to ensure the anchorage strength between the second truss reinforcement 4 and the second formwork 2 and to enhance the connection strength between the formwork and the post-cast concrete, in this embodiment, the second truss reinforcement 4 is configured to include a third reinforcement 41 and a fourth reinforcement 42; both the third reinforcement 41 and the fourth reinforcement 42 are continuously bent along the third direction c, that is, they can form a wavy bend or a broken line bend along the third direction c. Figure 8 and Figure 9 As shown, alternating crests and troughs can be formed at both ends of the first direction a, and the third steel bar 41 and the fourth steel bar 42 between adjacent crests and troughs form a web structure. Accordingly, refer to the attached diagram. Figure 8A third tie section 43 is formed at the trough of the wave. This third tie section 43 is formed during the bending process of the reinforcing bar. In this embodiment, the third tie section 43 can be parallel to the second formwork 2, along the first direction a, inclined at a specified angle to the straight line containing the first direction a, or continuously bent along a third direction c. This ensures that the third tie section 43 has certain dimensions in both the second direction b and the third direction c, thereby increasing the anchorage area and area with the second formwork 2 and improving the anchorage strength. For example: refer to Appendix Figure 10 The third connecting section 43 is a bent section parallel to the second mold shell 4, and may be... Figure 9 The arc shape shown can also be wavy, pointed, U-shaped, etc. It is understood that the anchoring portion can be limited to the third tie section 43, or it can include a section of the web member adjoining the third tie section 43. Correspondingly, the third reinforcing bar 41 and the fourth reinforcing bar 42 are directly connected at the crest, and can have a corresponding tie section or not, ensuring a smooth transition connection before pouring concrete and the second formwork 2. It is also understood that, referring to the appendix... Figure 10 In this embodiment, the third tie segments 43 on the third reinforcing bar 41 and the fourth reinforcing bar 42 can be arranged in a way that is far apart from each other on the straight line in the second direction b, so that the third reinforcing bar 41 and the fourth reinforcing bar 42 are distributed in an umbrella shape in the first direction a, that is... Figure 10 As shown, this enhances the strength and stability of the second truss reinforcement 4 in the first direction a.

[0074] Further, see attached document. Figure 2 and attached Figure 10 In the specific implementation of the prefabricated exterior wall component provided in this embodiment, the second truss reinforcement 4 further includes a second lower chord reinforcement 44; the second lower chord reinforcement 44 is disposed on the side of the third tie section 43 facing the third tie section 43 which is symmetrical to it in the second direction b; the third tie section 43 is a bent section parallel to the second mold shell 2.

[0075] Understandably, to improve the strength of the second truss reinforcement 4, a second lower chord reinforcement 44 is provided in this embodiment. The second lower chord reinforcement 44 is a straight reinforcement. In this embodiment, the second lower chord reinforcement 44 is provided corresponding to and connected to the third tie section 43, which can be, but is not limited to, welding or binding. The second lower chord reinforcement 44 is provided on the side of the third tie section 43 that is symmetrical to it in the second direction b, so as to ensure the stability of the umbrella-shaped distribution of the third reinforcement 41 and the fourth reinforcement 42, thereby ensuring the overall strength of the second truss reinforcement 4. In this embodiment, the diameter of the second lower chord reinforcement 44 can be designed and adjusted according to structural requirements, and can be a small-diameter reinforcement, such as 4mm, 6mm, etc.

[0076] Further, see attached document.Figure 1 Appendix Figure 3 and appendix Figure 7 The prefabricated exterior wall component provided in this embodiment, in specific implementation, further includes a plurality of first transverse distributed reinforcing bars 6, a plurality of second transverse distributed reinforcing bars 7, a plurality of longitudinal distributed reinforcing bars 8, and a plurality of structural reinforcing bars 9; a plurality of the longitudinal distributed reinforcing bars 8 are spaced apart along the second direction b on the surface of the first mold shell 1 facing the second mold shell 2, and the longitudinal distributed reinforcing bars 8 extend along the third direction c; the first truss reinforcing bar 3 and both sides along the second direction b are connected to a longitudinal distributed reinforcing bar 8; a plurality of the first transverse distributed reinforcing bars 6 are spaced apart along the third direction c on the surface of the first mold shell 1 facing the second mold shell 2, and the first transverse distributed reinforcing bars 6 extend along the second direction b. Extending, the first transverse distribution steel bar 6 is connected to one end of the first truss steel bar 3 facing the first mold shell 1; a plurality of second transverse distribution steel bars 7 are provided at intervals along the third direction c on one side surface of the second mold shell 2 facing the first mold shell 1, the second transverse distribution steel bars 7 extend along the second direction b, and the second transverse distribution steel bars 7 are connected to one end of the first truss steel bar 3 and the second truss steel bar 4 facing the second mold shell 2; a plurality of structural steel bars 9 are provided at intervals along the second direction b on one side surface of the second mold shell 2 facing the first mold shell 1, the structural steel bars 9 extend along the third direction c, and the structural steel bars 9 are placed inside the second truss steel bar 4.

[0077] It can be understood that, in order to ensure the overall structural strength of the outer wall prefabricated component, the first transverse distribution steel bars 6, the second transverse distribution steel bars 7, the longitudinal distribution steel bars 8 and the construction steel bars 9 are arranged in the embodiment to form strength supports on the inner surfaces of the first formwork 1 and the second formwork 2 and can be locally connected with the first truss steel bars 3 and the second truss steel bars 4 to improve the connection strength and the close contact with the post-cast concrete. The first transverse distribution steel bars 6, the second transverse distribution steel bars 7, the longitudinal distribution steel bars 8 and the construction steel bars 9 are all linear steel bars; the first transverse distribution steel bars 6 and the longitudinal distribution steel bars 8 are arranged on the side surface of the first formwork 1 facing the second formwork 2 to form a grid-shaped distribution structure, and the spacing between adjacent first transverse distribution steel bars 6 is the wavelength of the continuous bending of the first steel bars 31 and the second steel bars 32. The longitudinal distribution steel bars 8 are arranged with the first truss steel bars 3, and each first truss steel bar 3 is equipped with a longitudinal distribution steel bar 8 on both sides, that is, the spacing between the two longitudinal distribution steel bars 8 is the spacing of the first steel bars 31 and the second steel bars 32 in the second direction b. Of course, it can be understood that the above-mentioned spacing of the first steel bars 31 and the second steel bars 32 is the relevant spacing size exposed in the pouring space; and the first transverse distribution steel bars 6 can extend out of the pouring space for the connection of adjacent outer wall prefabricated components in the second direction b. The second transverse distribution steel bars 7 and the construction steel bars 9 are arranged on the side surface of the second formwork 2 facing the first formwork 1 to form a grid-shaped distribution structure, the second transverse distribution steel bars 7 are arranged corresponding to the positions between two adjacent first transverse distribution steel bars 6, and the spacing between adjacent second transverse distribution steel bars 7 is the wavelength of the continuous bending of the third steel bars 41 and the fourth steel bars 42; the second transverse distribution steel bars 7 can extend out of the pouring space for the connection of adjacent outer wall prefabricated components in the second direction b; the second transverse distribution steel bars 7 can pass through the second tie segment 35; the construction steel bars 9 are located between the third steel bars 41 and the fourth steel bars 42, and the construction steel bars 9 can be linear steel bars. It can be understood that the aforementioned construction steel bars 9 can be fixed by being bound or welded in advance by the second transverse distribution steel bars 7, so as to be kept between the third steel bars 41 and the fourth steel bars 42, for reducing the spacing between the two top chord steel bars 33 on one side of the second formwork 2, that is, the spacing of the top chord steel bars 33 of the first truss steel bars 3 in the second direction b is large, and the construction steel bars 9 are located between adjacent top chord steel bars 33 to reduce the size of the spacing space, and the diameter of the construction steel bars 9 can be designed and adjusted according to the construction needs, which can be small-diameter steel bars, such as 6 mm, 8 mm, etc.

[0078] Embodiment 2

[0079] The embodiment provides a modular assembly wall, which comprises at least one outer wall prefabricated component.

[0080] It can be understood that the outer wall prefabricated component is the outer wall prefabricated component described in Embodiment 1, and the structure and construction principle thereof refer to the detailed description of Embodiment 1, which will not be described in detail here.

[0081] In this embodiment, the modular assembly wall can include a plurality of outer wall prefabricated components adjacent in the second direction b, a plurality of outer wall prefabricated components adjacent in the third direction c, or both a plurality of outer wall prefabricated components adjacent in the second direction b and a plurality of outer wall prefabricated components adjacent in the third direction c.

[0082] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An exterior wall precast component, characterized by, It comprises: a first formwork; a second formwork, which is parallel and spaced apart from the first formwork along a first direction to form a pouring space between the second formwork and the first formwork; a plurality of first truss steels, which are arranged in a second direction at intervals, extend along a third direction, and are respectively anchored in the first formwork and the second formwork at both ends along the first direction; a plurality of second truss steels, which are arranged in the second direction at intervals, extend along the third direction, and are alternately arranged with the first truss steels along the second direction, are anchored in the second formwork at a first end along the first direction, and extend at least to the pouring space at a second end along the first direction; wherein the first direction is perpendicular to a surface of the first formwork facing the second formwork, and the second direction and the third direction are both perpendicular to the first direction.

2. The prefabricated outer wall component according to claim 1, further comprising: a connecting steel; the first truss steel is provided with at least two connecting steels at one end along the third direction in the first direction, the connecting steels extend out of the pouring space along the third direction or the opposite direction of the third direction, and are used for being inserted into the pouring space of the outer wall component adjacent to the outer wall component.

3. The prefabricated outer wall component according to claim 1, wherein: the first truss steel comprises a first steel, a second steel and a top chord steel; the top chord steel extends along the third direction, and the first steel and the second steel are symmetrically arranged on both sides of the top chord steel along the second direction; the first steel and the second steel are both continuously bent along the third direction, form a plurality of first tie segments arranged at intervals along the third direction at one end facing the first formwork, and form a plurality of second tie segments arranged at intervals along the third direction at one end facing the second formwork; and the first tie segments and the second tie segments are alternately arranged along the third direction; wherein at least the first tie segments and the second tie segments of the first truss steel are respectively anchored in the first formwork and the second formwork.

4. The prefabricated outer wall component according to claim 3, wherein: one end of the first steel and the second steel facing the second formwork is connected to the top chord steel, and one end of the first steel and the second steel facing the first formwork is away from each other.

5. The prefabricated outer wall component according to claim 3, wherein: the first tie segments and the second tie segments are bent segments parallel to the first formwork.

6. The prefabricated outer wall component according to claim 3, wherein: the first truss steel further comprises a first bottom chord steel; the first bottom chord steel is arranged on one side of the first tie segment facing the first tie segment symmetric to it in the second direction.

7. The prefabricated exterior wall component according to claim 1, wherein: the second truss reinforcement comprises a third reinforcement and a fourth reinforcement; the third reinforcement and the fourth reinforcement are symmetrically arranged with respect to a first straight line parallel to the third direction; the third reinforcement and the fourth reinforcement are continuously bent along the third direction to form a plurality of third tie segments spaced along the third direction at one end towards the second formwork, the third reinforcement being connected at one end towards the first formwork to the fourth reinforcement at one end towards the first formwork; wherein at least the third tie segments of the second truss reinforcement are anchored in the second formwork.

8. The prefabricated exterior wall component according to claim 7, wherein: the second truss reinforcement further comprises a second bottom chord reinforcement; the second bottom chord reinforcement is arranged at one side of the third tie segments towards a third tie segment symmetrically arranged in the second direction; the third tie segments are bent segments parallel to the second formwork.

9. The prefabricated exterior wall component according to claim 1, wherein: further comprising a plurality of first transverse distribution reinforcements, a plurality of second transverse distribution reinforcements, a plurality of longitudinal distribution reinforcements and a plurality of construction reinforcements; the first formwork has a plurality of longitudinal distribution reinforcements spaced along the second direction at one side towards the second formwork, the longitudinal distribution reinforcements extending along the third direction, one longitudinal distribution reinforcement being connected to both sides of the first truss reinforcement along the second direction; the first formwork has a plurality of first transverse distribution reinforcements spaced along the third direction at one side towards the second formwork, the first transverse distribution reinforcements extending along the second direction, the first transverse distribution reinforcements being connected to one end of the first truss reinforcement towards the first formwork; the second formwork has a plurality of second transverse distribution reinforcements spaced along the third direction at one side towards the first formwork, the second transverse distribution reinforcements extending along the second direction, the second transverse distribution reinforcements being connected to one end of the first truss reinforcement and the second truss reinforcement towards the second formwork; the second formwork has a plurality of construction reinforcements spaced along the second direction at one side towards the first formwork, the construction reinforcements extending along the third direction, the construction reinforcements being arranged in the second truss reinforcement.

10. A modular assembly wall, characterized in that It comprises: at least one prefabricated exterior wall component according to any one of claims 1-9.

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