Precast concrete wall panels, precast concrete wall bodies and modular buildings

Abstract

The application provides a prefabricated concrete wall plate, a prefabricated concrete wall and a modular building. The prefabricated concrete wall plate comprises a wall plate body and a connecting part arranged on a surface in the height direction and the width direction of the wall plate body, and the connecting part comprises at least one protrusion, a containing space and a connecting steel bar. The protrusion comprises a connecting end face, the connecting steel bar comprises a first side close to the connecting end face, the containing space is used for containing the connecting steel bar, and the containing space is located in the protrusion or between two adjacent protrusions. The connecting steel bar can move in the containing space and is arranged in the containing space in an inclined state or a horizontal state. When the connecting steel bar is arranged in the containing space in the horizontal state, the first side extends out of the connecting end face. The prefabricated concrete wall plate provided by the application is provided with the connecting part, the connecting steel bar is located in the protrusion or between the two adjacent protrusions, does not occupy the volume and cannot be collided, and preparation and construction are very simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, in particular to a prefabricated concrete wallboard, a prefabricated concrete wall and a modular building. BACKGROUND

[0002] The assembled monolithic shear wall structure is the main structure form of the assembled building structure. In the prior art, more attention is paid to the connection technology scheme between two prefabricated concrete walls, that is, the end faces where the heights and thicknesses of adjacent prefabricated concrete walls are located; and less attention is paid to the connection technology of forming a prefabricated concrete wall by connecting the faces where the heights and widths of two prefabricated concrete wallboards are located.

[0003] In the modular building structure of the assembled concrete shear wall, the adjacent prefabricated wallboards of adjacent prefabricated modules constitute a wall of the modular building structure, and the structure of the prefabricated wallboard and the connection structure between adjacent prefabricated wallboards are the fundamental guarantee of the structural performance and the key to the efficiency of production, installation and the like. In the existing modular building structure technology, steel bars are generally protruded on the adjacent prefabricated wallboards of adjacent prefabricated modules, which leads to complex production and installation and poor efficiency. SUMMARY

[0004] In order to solve one of the problems in the prior art, the first object of the present application is to provide a prefabricated concrete wallboard, which comprises:

[0005] a wallboard body; and

[0006] a connecting portion provided on the face in the height direction and the width direction of the wallboard body, comprising at least one protrusion, a receiving space and a connecting steel bar;

[0007] wherein the protrusion comprises a connecting end face, and the connecting steel bar comprises a first side close to the connecting end face;

[0008] the receiving space is used for accommodating the connecting steel bar, and the receiving space is located in the protrusion or between two adjacent protrusions;

[0009] the connecting steel bar can move in the receiving space, so as to be arranged in the receiving space in an inclined state or a horizontal state, and when the connecting steel bar is arranged in the receiving space in the horizontal state, the first side protrudes out of the connecting end face.

[0010] In some embodiments of the present application, the receiving space is located in the protrusion and comprises a transverse hole and a first longitudinal hole which are in communication with each other.

[0011] In some embodiments of the present application, the connecting portion further comprises a first longitudinal rib disposed in the first longitudinal hole; and the connecting steel bar further comprises a second side close to the wallboard body, the second side being connected to the first longitudinal rib.

[0012] The first longitudinal rib is movable so that the connecting steel bar is disposed in the accommodating space in an inclined state or a horizontal state.

[0013] The second side is movable up and down along the length direction of the first longitudinal rib so as to be disposed in the accommodating space in an inclined state or a horizontal state.

[0014] In some embodiments of the present application, the connecting end face comprises a first connecting end face and a second connecting end face, the first connecting end face and the second connecting end face being parallel to each other or perpendicular to each other; and the connecting steel bar comprises a first connecting steel bar and a second connecting steel bar, the first connecting steel bar and the second connecting steel bar being accommodated in the accommodating space together.

[0015] In the horizontal state, the first side of the first connecting steel bar extends out of the first connecting end face, and the first side of the second connecting steel bar extends out of the second connecting end face.

[0016] In some embodiments of the present application, the connecting portion comprises at least two adjacent upper and lower protrusions, the accommodating space is located between the two adjacent upper and lower protrusions, and the connecting steel bar further comprises a second side close to the wallboard body.

[0017] In the horizontal state, the connecting steel bar is located on the top surface of the lower protrusion of the two adjacent upper and lower protrusions, and the first side extends out of the connecting end face.

[0018] In the inclined state, the first side is inclined upward toward the upper protrusion of the two adjacent upper and lower protrusions, and the second side is abutted against the top surface of the lower protrusion; or the first side is inclined downward toward the lower protrusion of the two adjacent upper and lower protrusions, and the second side is abutted against the bottom surface of the upper protrusion.

[0019] In some embodiments of the present application, the upper protrusion comprises a first base body and a second longitudinal hole penetrating through the first base body, and the lower protrusion comprises a second base body and a third longitudinal hole penetrating through the second base body.

[0020] The connecting portion further comprises a second longitudinal rib located in the second longitudinal hole and the third longitudinal hole, the second longitudinal rib being connected to the first side and / or the second side.

[0021] The second longitudinal reinforcement is movable, allowing the connecting reinforcement to be positioned horizontally or inclined within the receiving space; or

[0022] The first side or the second side can move up and down along the length of the second longitudinal rib, thereby being positioned in the receiving space in an inclined or horizontal state.

[0023] A second objective of this invention is to provide a precast concrete wall.

[0024] In some embodiments of the present invention, the precast concrete wall further includes precast concrete spliced ​​wall panels;

[0025] The precast concrete spliced ​​wall panel includes a spliced ​​wall panel body and a splicing part disposed on the spliced ​​wall panel body. The splicing part includes a splicing hole, and the sum of the width of the accommodating space and the width of the splicing hole is greater than or equal to the length of the connecting steel bar.

[0026] In some embodiments of the present invention, the precast concrete spliced ​​wall panel further includes a third longitudinal reinforcement, which is disposed in the splicing hole and connected to the first side of the connecting reinforcement; the precast concrete wall panel and the precast concrete spliced ​​wall panel are disposed opposite to each other, and concrete is poured between them.

[0027] In some embodiments of the present invention, the precast concrete wall further includes at least two precast concrete wall panels, the connecting steel bars of the at least two precast concrete wall panels are connected, and concrete is poured into the space formed between the precast concrete wall panels.

[0028] In some embodiments of the present invention, the precast concrete wall further includes a fourth longitudinal reinforcement, which is disposed in the intersecting space formed by the connecting reinforcement bars of at least two of the precast concrete wall panels, and the fourth longitudinal reinforcement is connected to at least one of the first sides of the connecting reinforcement bars of at least two of the precast concrete wall panels.

[0029] In some embodiments of the present invention, the precast concrete wall further includes a fifth longitudinal reinforcement, which is disposed outside the intersecting space formed by the connecting reinforcement bars of at least two of the precast concrete wall panels, and the fifth longitudinal reinforcement is connected to a first side of one or more of the connecting reinforcement bars of at least two of the precast concrete wall panels.

[0030] A third object of the present invention is to provide a modular building comprising at least two prefabricated modules, each prefabricated module comprising at least two vertical concrete wall panels and a horizontal structure at least partially connected to the at least two vertical concrete wall panels, the horizontal structure being a ceiling and / or a floor;

[0031] The vertical wall panels between adjacent prefabricated modules are any of the prefabricated concrete wall panels described above.

[0032] The precast concrete wall panel provided by this invention has a connecting part, which is connected to the precast concrete wall by connecting steel bars and post-poured concrete. The connecting steel bars are installed after the precast concrete wall panel is manufactured, without interfering with the manufacturing process, facilitating steel bar installation and formwork assembly / disassembly, reducing formwork costs, and improving efficiency. Furthermore, the connecting steel bars do not need to be installed on-site, reducing on-site workload. During transportation and hoisting, the connecting steel bars are located within the protrusions or between two adjacent protrusions, occupying no volume and avoiding collisions. During construction, the connecting steel bars only need to be adjusted to a horizontal state to connect with other wall panels, simplifying the process.

[0033] The connecting steel bars of this invention tend to adjust to a horizontal state under their own weight when tilted, giving them a degree of automaticity in adjusting from a tilted to a horizontal state. That is, slight disturbance to the connecting steel bars, such as vibration of the precast concrete wall panel or the connecting steel bars themselves, can cause them to adjust from a tilted state to a horizontal state, demonstrating their automatic positioning capability. This feature facilitates the installation of connecting steel bars between precast wall panels, and is particularly suitable for use in modular building structures as described in this invention, where the spacing between precast concrete wall panels is small and the area is large, making it difficult to access the steel bars. Using this invention, the connecting steel bars are installed inside one side of the precast concrete wall panel and extend into the other side of the precast concrete wall panel on-site. The automatic positioning capability of the connecting steel bars enables automated installation, which is extremely convenient and fast.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] Figure 1(a) and Figure 1(b) are schematic diagrams of the structure of a precast concrete wall panel provided in an embodiment of the present invention. In Figure 1(a), the connecting steel bars are in an inclined state, and in Figure 1(b), the connecting steel bars are in a horizontal state.

[0036] Figure 2 This is a structural schematic diagram of a precast concrete spliced ​​wall panel provided in an embodiment of the present invention.

[0037] Figure 3 This is a structural schematic diagram of a precast concrete wall provided in an embodiment of the present invention.

[0038] Figure 4 This is a structural schematic diagram of a precast concrete wall panel provided in another embodiment of the present invention.

[0039] Figure 5This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0040] Figure 6 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0041] Figure 7 This is a structural schematic diagram of a precast concrete wall panel provided in another embodiment of the present invention.

[0042] Figure 8 This is a structural schematic diagram of a precast concrete wall panel provided in another embodiment of the present invention.

[0043] Figure 9 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0044] Figure 10 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0045] Figure 11 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0046] Figure 12 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0047] Figures 13(a) and 13(b) are schematic diagrams of the structure of a precast concrete wall panel provided in another embodiment of the present invention. In Figure 13(a), the connecting steel bars are in an inclined state, and in Figure 13(b), the connecting steel bars are in a horizontal state.

[0048] Figures 14(a) and 14(b) are schematic diagrams of the structure of a precast concrete wall panel provided in another embodiment of the present invention. In Figure 14(a), the connecting steel bars are in an inclined state, and in Figure 14(b), the connecting steel bars are in a horizontal state.

[0049] Figure 15 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0050] Figure 16 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0051] Figure 17 This is a structural schematic diagram of a precast concrete wall panel provided in another embodiment of the present invention.

[0052] Figures 18(a) and 18(b) are schematic diagrams of the structure of a precast concrete wall panel provided in another embodiment of the present invention. In Figure 18(a), the connecting steel bars are in an inclined state, and in Figure 18(b), the connecting steel bars are in a horizontal state.

[0053] Figure 19 This is a structural schematic diagram of a precast concrete wall panel provided in another embodiment of the present invention.

[0054] Figure 20 This is a structural schematic diagram of a precast concrete wall panel provided in another embodiment of the present invention.

[0055] Figure 21 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0056] Figure 22 This is a structural schematic diagram of a precast concrete wall provided for another embodiment of the present invention.

[0057] Figure 23 A structural schematic diagram of a precast concrete modular building provided in an embodiment of the present invention is shown. Detailed Implementation

[0058] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0059] The following disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0060] In this invention, the terms "first," "second," and other ordinal numbers are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] It should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a flexible connection, a detachable connection, or an integral connection, and also include situations where two parts are in contact with each other; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0062] The specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and examples, so as to better understand the solution of the present invention and its advantages in various aspects. However, the specific embodiments and examples described below are for illustrative purposes only and are not intended to limit the present invention.

[0063] Figures 1(a) and 1(b) illustrate a precast concrete wall panel 100 provided in an embodiment of the present invention, which includes a wall panel body 110 and a connecting portion 120. The connecting portion 120 is disposed on the surfaces of the wall panel body 110 in the height and width directions, and includes at least one protrusion 121, a receiving space 122, and a connecting steel bar 123. The connecting steel bar 123 is installed after the reinforced concrete portion consisting of the wall panel body 110, the protrusion 121, and the receiving space 122 is fabricated. That is, the precast wall panel does not have protruding steel bars during the fabrication process, facilitating formwork installation and disassembly, simplifying fabrication, and allowing for standardization of the formwork with almost no amortization costs.

[0064] In this embodiment, the connecting portion 120 includes two protrusions 121. Each protrusion 121 includes a connecting end face (i.e., the end face where the prefabricated composite wall panel connects to other wall panels) 121a, and the connecting reinforcing bar 123 includes a first side 123a near the connecting end face 121a. The accommodating space 122 is used to accommodate the connecting reinforcing bar 123. In this invention, "accommodating" means "partially or entirely located within," that is, the connecting reinforcing bar 123 being accommodated in the accommodating space 122 means that the connecting reinforcing bar 123 is partially or entirely located within the accommodating space 122. The connecting reinforcing bar 123 includes a first side 123a near the connecting end face 121a. In this embodiment, the connecting reinforcing bar 123 is a rectangular reinforcing bar or a stirrup ring, and therefore also has a second side 123b away from the connecting end face. It should be noted that the connecting reinforcing bar 123 in this invention can also be other shapes and does not necessarily have a second side (e.g., a "]" shape), as long as the relevant effect can be achieved.

[0065] In this embodiment, the receiving space 123 is located within the protrusion 121. The connecting steel bar 123 is movable within the receiving space 122, thus being positioned in an inclined state (as shown in Figure 1(a)) or a horizontal state (as shown in Figure 1(b)). When the connecting steel bar 123 is positioned horizontally within the receiving space, the first side 123a extends beyond the connecting end face 121a. During transportation and hoisting, the connecting steel bar 123 is positioned in an inclined state within the receiving space 122, essentially not extending beyond the connecting end face 121a, thus not interfering with the transportation and hoisting of the precast concrete wall panel 100. In this embodiment, the receiving space 122 includes interconnected transverse openings 122a and a first longitudinal opening 122b.

[0066] For clarity, Figure 1(a) is partially cut to expose the connecting steel bars 123, and the shaded area is the cut surface; in order to more clearly express the technical features of the present invention, the steel bars inside the precast concrete wall panel 100 are not shown in the partial cut.

[0067] Figure 2 A precast concrete spliced ​​wall panel 200 according to an embodiment of the present invention is shown. It includes a spliced ​​wall panel body 210 and splicing portions 220 disposed on the surfaces of the spliced ​​wall panel body 210 in the height and width directions. The splicing portions 220 include splicing holes 221. In this embodiment, the splicing holes 221 include interconnected transverse holes 221a and longitudinal holes 221b. The sum of the width of the accommodating space 122 (i.e., the depth of the transverse holes 122a) and the width of the splicing holes (i.e., the depth of the transverse holes 221a) is greater than or equal to the length of the connecting reinforcing bars 123.

[0068] Figure 3 The precast concrete wall panel 100 shown in Figure 1 and Figure 2 The diagram shows a cross-sectional view of a precast concrete wall 1000 constructed from precast concrete spliced ​​wall panels 200. The first side 123a and the second side 123b of the connecting steel bars 123 are located in the splicing and receiving portions of the precast concrete spliced ​​wall panels 200 and 100, respectively.

[0069] When splicing with the precast concrete spliced ​​wall panel 200, the connecting end face 121a of the precast concrete wall panel 100 is set facing the splicing end face of the precast concrete spliced ​​wall panel 200. At this time, the connecting steel bar 123 is in an inclined state, and its first side 123a is in the receiving part, which will not interfere with the hoisting and installation of the precast concrete wall panel 100 and the precast concrete spliced ​​wall panel 200. After the precast concrete wall panel 100 and the precast concrete spliced ​​wall panel 200 are in place, the connecting steel bar 123 of the precast concrete wall panel 100 is adjusted from the inclined state to the horizontal state, so that the first side 123a of the connecting steel bar 123 extends out of the connecting end face 121a and into the transverse hole 221a. Because the distance between the precast concrete wall panel 100 and the precast concrete spliced ​​wall panel 200 is very small and the area is very large, it is difficult to directly contact the connecting steel bar 123 to adjust its position. However, because the connecting steel bar 123 tends to change from an inclined state to a horizontal state under its own weight, indirect disturbance can also adjust the connecting steel bar 123 to a horizontal state. Thus, even when the distance between the precast concrete spliced ​​wall panel 200 and the precast concrete wall panel 100 is very small and there is no operating space to directly contact the connecting steel bar, disturbing the connecting steel bar 123 can adjust it from an inclined state to a horizontal state, for example, by vibrating the precast concrete wall panel 100. In this way, the connecting steel bar 123 connecting the precast concrete spliced ​​wall panel 200 and the precast concrete wall panel 100 has the ability to automatically position itself, realizing the automated installation of the connecting steel bar, which is extremely convenient and fast. Then, concrete is poured into the space formed between the precast concrete wall panel 100 and the precast concrete spliced ​​wall panel 200, including pouring concrete into the first longitudinal hole 122b and the longitudinal hole 221b, so that the precast concrete wall panel 100 and the precast concrete spliced ​​wall panel 200 are fixedly connected together to form a precast concrete wall 1000 (the concrete poured later is not shown in the figure).

[0070] like Figure 4 As shown, the connecting portion 120 of the precast concrete wall panel 100 also includes a first longitudinal reinforcement 124, which is disposed within the first longitudinal hole 122b. The second side 123b of the connecting reinforcement 123 is connected to the first longitudinal reinforcement 124.

[0071] In this embodiment, the first longitudinal reinforcement 124 is movable, thereby allowing the connecting reinforcement 123 to be positioned in an inclined or horizontal state within the receiving space 122. One technical approach is to connect the second side 123b of the connecting reinforcement 123 to the first longitudinal reinforcement 124. Pulling or pushing the first longitudinal reinforcement 124 longitudinally upwards or downwards causes the connecting reinforcement 123 to be in an inclined state; moving the first longitudinal reinforcement 124 in the opposite direction adjusts the connecting reinforcement 123 to a horizontal state. In other embodiments of the invention, the second side 123b is movable up and down along the length of the first longitudinal reinforcement 124, thereby being positioned in an inclined or horizontal state within the receiving space 122.

[0072] In this embodiment, each first longitudinal hole 122b is provided with two first longitudinal bars 124, and the two first longitudinal bars 124 are located on the other side of the first longitudinal hole 122b away from the connecting end face 121a, and are connected to the second side 123b of the connecting bar 123 in a horizontal state.

[0073] For clarity, Figure 4 A partial section is cut to expose the connecting steel bar 123 and the first longitudinal bar 124. The shaded area is the section surface. To more clearly express the technical features of the present invention, the steel bars inside the precast concrete wall panel 100 are not shown in the partial section.

[0074] Figure 5 It shows Figure 4 The precast concrete wall panel 100 shown is Figure 2 A schematic diagram of the cross-section of the precast concrete wall 2000 formed by the precast concrete spliced ​​wall panels 200 shown.

[0075] Figure 6 Another form of the precast concrete wall 2000 is shown. Figure 6 In the embodiment shown, a third longitudinal reinforcement 222 is provided in the longitudinal hole 221b of the splicing hole 221 of the precast concrete splicing wall panel 200, wherein the third longitudinal reinforcement 222 is connected to the first side 123a of the connecting reinforcement 123.

[0076] In this invention, the connecting end face 121a of the precast concrete wall panel 100 can be set on any one of the three faces of the protrusion 121. Figure 7 In the embodiment shown, the connecting end face 121a is perpendicular to the wall panel body 110.

[0077] For clarity, Figure 7 Partial sectioning exposes the connecting steel bars 123; the shaded area is the sectioning surface. To more clearly illustrate the technical features of the present invention, the steel bars inside the precast concrete wall panel 100 are not shown in the partial sectioning.

[0078] Figure 8 Another embodiment of the precast concrete wall panel 100 is shown, wherein the orientation of its connecting end face 121a is... Figure 7 The same applies, and the accommodating space 122 is provided with a first longitudinal rib 124.

[0079] For clarity, Figure 8 A partial section is cut to expose the connecting steel bar 123 and the first longitudinal bar 124. The shaded area is the section surface. To more clearly express the technical features of the present invention, the steel bars inside the precast concrete wall panel 100 are not shown in the partial section.

[0080] Figure 9 For 2Figure 8 The diagram shows a cross-sectional view of a precast concrete wall 3000 formed by connecting precast concrete wall panels 100. The connecting steel bars 123 are connected, and concrete is poured into the space formed between the precast concrete wall panels (the concrete poured into the space is not shown in the diagram). The connection process is similar. Figure 3 The precast concrete wall shown is 1000mm thick; further details will not be provided here. [Using...] Figure 9 The connection structure shown is the same as... Figure 6 Compared to the previous configuration, the protrusion 121 extends significantly beyond the wall panel body 110, which facilitates the use of larger connecting steel bars 123 and their arrangement. In one embodiment, if the thickness of the precast concrete wall 3000 is 240mm and the thickness of the wall panel body 110 is 40mm, the protrusion 121 can extend 150mm beyond the wall panel body 110, making it very convenient to install the connection and connecting steel bars. Figure 6 As shown in the diagram, if the precast concrete wall thickness is 240mm and the wall panel body 110 thickness is 40mm, then the protrusion 121 protruding from the wall panel body 110 would be approximately 70mm, making its fabrication quite difficult. Therefore, from another perspective, using... Figure 9 The connection structure shown can reduce the thickness of the precast concrete wall by 3000 mm, for example. Figure 23 The thickness of the precast concrete wall, composed of precast concrete wall panels, in the modular building shown can be 240mm or even less than 200mm, while the thickness of the precast concrete wall in the modular building in the prior art can reach 300mm or even 400mm.

[0081] Figure 10 In another embodiment of the precast concrete wall 3000, the width of the connecting steel bars 123 that combine with the precast concrete wall panel 100 forming the precast concrete wall 3000 is... Figure 9 The embodiments shown are different. Figure 10 In the embodiment shown, the width of the connecting steel bar 123 is close to the width of the connecting end face 121a. Figure 9 In the embodiment shown, the width of the connecting steel bar 123 is smaller than the width of the connecting end face 121a.

[0082] Figure 11 Another embodiment of the precast concrete wall 3000, with Figure 9The difference in the illustrated embodiment is that the precast concrete wall 3000 further includes a fourth longitudinal reinforcement 3001, which is disposed within the intersecting space A formed by the connecting reinforcement 123 of at least two precast concrete wall panels 100. In this embodiment, there are four fourth longitudinal reinforcements 3001, respectively disposed at the four corners of the intersecting space A, increasing the overall connection integrity of the precast concrete wall panels 100. In other embodiments of the invention, the fourth longitudinal reinforcement 3001 may be connected to at least one of the first sides 123a of the connecting reinforcement 123 of at least two precast concrete wall panels 100.

[0083] Figure 12 Another embodiment of the precast concrete wall 3000, which is related to Figure 10 The difference of the precast concrete wall 3000 shown is that the precast concrete wall 3000 also includes a fifth longitudinal bar 3002, which is located outside the intersecting space A formed by the connecting bars 123 of the two precast concrete wall panels 100, and is connected to the first side 123a of one or more of the connecting bars 123 of the two precast concrete wall panels 100.

[0084] Figures 13(a) and 13(b) illustrate a precast concrete wall panel 300 according to another embodiment of the present invention, which includes a wall panel body 310 and a connecting portion 320. The connecting portion 320 is disposed on the wall panel body 310 and includes at least one protrusion 321, a receiving space 322, and connecting reinforcing bars. For ease of illustration, Figures 13(a) and 13(b) are partially cross-sectional, exposing the connecting reinforcing bars 323-1 and 323-2; the shaded areas represent the cross-sectional surfaces. To more clearly illustrate the technical features of the present invention, the reinforcing bars within the precast concrete wall panel 300 are not shown in the partial cross-section.

[0085] The connecting end face of the protrusion 321 includes a first connecting end face 321a-1 and a second connecting end face 321a-2. The first connecting end face 321a-1 and the second connecting end face 321a-2 are parallel to each other and both are perpendicular to the wall panel body 310. In other embodiments of the present invention, the first connecting end face 321a-1 and the second connecting end face 321a-2 may also be perpendicular to each other. The connecting reinforcing bars include a first connecting reinforcing bar 323-1 and a second connecting reinforcing bar 323-2, which are together accommodated in the accommodating space 322. The first connecting reinforcing bar 323-1 and the second connecting reinforcing bar 323-2 can both move within the accommodating space 322, thereby being arranged in an inclined state (as shown in FIG. 13(a)) or a horizontal state (as shown in FIG. 13(b)) within the accommodating space 322. In the horizontal state, the first side of the first connecting steel bar 323-1 extends out of the first connecting end face 321a-1, and the first side of the second connecting steel bar 323-2 extends out of the second connecting end face 321a-2.

[0086] Figures 14(a) and 14(b) illustrate another embodiment of the precast concrete wall panel 300. A longitudinal reinforcement bar 324 is provided within the intersection space B of the first connecting reinforcement bar 323-1 and the second connecting reinforcement bar 323-2. In this embodiment, there are four longitudinal reinforcement bars 324; however, in other embodiments of the invention, other numbers may be used. The longitudinal reinforcement bars 324 are connected to the second side of the first connecting reinforcement bar 323-1 and the second connecting reinforcement bar 323-2, respectively.

[0087] Figure 15 Figure 14(a) and Figure 14(b) show a cross-sectional schematic diagram of a precast concrete wall 4000 formed by combining a precast concrete wall panel 300 and another precast concrete wall panel 400. The connecting end faces of two adjacent protrusions of the precast concrete wall panel 400 are opposite each other. Each of its accommodating spaces 422 is provided with longitudinal reinforcement 424. Figure 15 In the embodiment shown, the two connecting steel bars 423 of the precast concrete wall panel 400 are respectively connected to the first connecting steel bar 323-1 and the second connecting steel bar 323-2 of the precast concrete wall panel 300.

[0088] Figure 16 Another embodiment of the precast concrete wall 4000 is shown. Longitudinal reinforcement 4001 is also provided in the intersecting spaces A and C formed by the two connecting steel bars 423 of the precast concrete wall panel 400 and the first connecting steel bar 323-1 and the second connecting steel bar 323-2 of the precast concrete wall panel 300.

[0089] Figure 17 A precast concrete wall panel 500 according to an embodiment of the present invention is shown, including a wall panel body 510 and a connecting portion 520. The connecting portion 520 includes at least two vertically adjacent protrusions, a receiving space 522 located between the two vertically adjacent protrusions, and a connecting steel bar 523 including a first side 523a near the connecting end face 521a and a second side 523b near the wall panel body 510. In a horizontal state, the connecting steel bar 523 is located on the top surface of the lower protrusion 521-2 of the two vertically adjacent protrusions, and the first side 523a extends beyond the connecting end face 521a. In an inclined state, the first side 523a is inclined upward toward the upper protrusion 521-1 of the two adjacent protrusions 521, and the second side 523b abuts against the top surface of the lower protrusion 521-2. It should be noted that the terms "upper protrusion" and "lower protrusion" are relative concepts. For the same protrusion, it can be called an "upper protrusion" relative to the protrusion below it, and a "lower protrusion" relative to the protrusion above it. In another embodiment, in the inclined state, the first side 523a of the connecting steel bar 523 is inclined downward toward the lower protrusion 521-2 of the two adjacent protrusions 521, and the second side 523b abuts against the bottom surface of the upper protrusion 521-1.

[0090] Figures 18(a) and 18(b) show another embodiment of the precast concrete wall panel 500. The upper protrusion 521-1 includes a first substrate and a second longitudinal hole penetrating the first substrate, while the lower protrusion 521-2 includes a second substrate and a third longitudinal hole penetrating the second substrate.

[0091] The connecting part 520 also includes a second longitudinal rib 524, which is located in the second longitudinal hole and the third longitudinal hole. The second longitudinal rib 524 can be connected to the first side 523a and / or the second side 523b.

[0092] In this embodiment, the second longitudinal reinforcement 524 is movable, thereby allowing the connecting reinforcement 523 to be arranged in a horizontal state (as shown in Figure 18(b)) or an inclined state (as shown in Figure 18(a)) within the receiving space 522. In other embodiments of the invention, the first side 523a or the second side 523b is movable up and down along the length of the second longitudinal reinforcement 524, thereby being arranged in an inclined state or a horizontal state within the receiving space 522.

[0093] In this embodiment, there are two second longitudinal ribs 524. In other embodiments of the present invention, the number of second longitudinal ribs 524 can be set according to requirements, such as one or four (e.g., ...). Figure 19 (as shown in the image) etc.

[0094] Figure 20 Another embodiment of the precast concrete wall panel 500 is shown. It is related to... Figure 19 The difference in the illustrated embodiment is that the longitudinal holes of the protrusion 521 are located near the position of 521a, where three longitudinal ribs 525 are positioned. The upper and lower ends of the third longitudinal rib 525 are fixed to the upper surface of the uppermost protrusion and the lower surface of the lowermost protrusion of the precast concrete wall panel 500, respectively. In this embodiment, the upper end of the third longitudinal rib 525 is fixed to the limiting device 521b, and there is also a limiting device on the lower side (not shown in the figure). By adopting this technical means, the out-of-plane stiffness of the precast concrete wall panel 500 shown in Figure 18 can be significantly improved. That is, by fixing the upper and lower ends of the third longitudinal rib 525 to the protrusion, the precast concrete wall panel 500 has greater stiffness when subjected to loads perpendicular to the plane containing the height and width of the wall panel body 510.

[0095] Figure 21 The diagram shows a precast concrete wall 5000 formed by connecting precast concrete wall panels 500 and precast concrete spliced ​​wall panels 600 as shown in Figures 18(a) and 18(b). The precast concrete spliced ​​wall panel 600 includes a spliced ​​wall panel body and a splicing portion disposed on the spliced ​​wall panel body. The splicing portion includes a splicing hole 621, and the sum of the width of the accommodating space 522 and the width of the splicing hole 621 is greater than or equal to the length of the connecting reinforcing bar 523.

[0096] Figure 22 A cross-sectional schematic diagram of another embodiment of the precast concrete wall 5000 is shown. The precast concrete spliced ​​wall panel 600 also includes longitudinal reinforcement 622, which is disposed in the splicing hole 621 and is connected to the first side 523a of the connecting reinforcement 523.

[0097] Figure 23 This invention illustrates a modular building 100000 provided by the present invention. The modular building 100000 comprises at least two prefabricated modules 10000, each prefabricated module including at least one prefabricated concrete wall panel 100. In other embodiments of the invention, the prefabricated concrete wall panel 10000 in the prefabricated module 10000 may be replaced by any one of the aforementioned prefabricated concrete wall panels 200-500. The prefabricated module 10000 further includes a vertical wall panel 20, a vertical wall panel 30, or a vertical wall panel 40; the prefabricated module 10000 also includes a horizontal structure 10, which is a ceiling and / or a floor; the prefabricated concrete wall panel 100 is at least partially connected to the horizontal structure.

[0098] The prefabricated modules are installed in place, with the prefabricated concrete wall panels 100 of two adjacent prefabricated modules positioned relatively close to each other. Concrete is poured between the two adjacent prefabricated concrete wall panels 100 to form a prefabricated concrete wall 1000, thereby connecting the prefabricated modules together to form a modular building. In other embodiments of the present invention, the prefabricated concrete wall 1000 in the modular building can be replaced with any one of the aforementioned prefabricated concrete walls 2000-5000. The vertical wall panel 20, vertical wall panel 30, or vertical wall panel 40 may have door openings and / or window openings; the prefabricated concrete wall panel 100 may also have door openings and / or window openings. Using the technical solution of the present invention, the thickness of the prefabricated concrete wall 1000 can be 200mm; while in existing modular buildings, the thickness of the wall connecting adjacent prefabricated modules may reach 300mm or even 400mm.

[0099] Obviously, the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A precast concrete wall panel, characterized in that, include: Wall panel body; and The connecting part is provided on the surface of the wall panel body in the height and width directions, and includes at least one protrusion, a receiving space and a connecting steel bar; Wherein, the protrusion includes a connecting end face, and the connecting steel bar includes a first side close to the connecting end face; The accommodating space is used to accommodate the connecting steel bar, and the accommodating space is located within the protrusion; The connecting steel bar can move within the receiving space, thereby being set in the receiving space in an inclined state or a horizontal state. When the connecting steel bar is set in the receiving space in a horizontal state, the first side extends out of the connecting end face. The accommodating space includes interconnected transverse holes and a first longitudinal hole; The connecting portion further includes a first longitudinal reinforcement, which is disposed within the first longitudinal hole; the connecting reinforcement also includes a second side near the wall panel body, which is connected to the first longitudinal reinforcement. The first longitudinal bar is movable, thereby allowing the connecting steel bar to be arranged in an inclined or horizontal state within the accommodating space. The connecting steel bars are rectangular steel bars or stirrup rings.

2. The precast concrete wall panel according to claim 1, characterized in that, The connecting end face includes a first connecting end face and a second connecting end face, the first connecting end face and the second connecting end face are parallel to each other or perpendicular to each other, and the connecting steel bar includes a first connecting steel bar and a second connecting steel bar, the first connecting steel bar and the second connecting steel bar are together accommodated in the accommodating space; In the horizontal state, the first side of the first connecting steel bar extends out of the first connecting end face, and the first side of the second connecting steel bar extends out of the second connecting end face.

3. A precast concrete wall panel, characterized in that, include: Wall panel body; and The connecting part is provided on the surface of the wall panel body in the height and width directions, and includes at least one protrusion, a receiving space and a connecting steel bar; Wherein, the protrusion includes a connecting end face, and the connecting steel bar includes a first side close to the connecting end face; The accommodating space is used to accommodate the connecting steel bar, and the accommodating space is located between two adjacent protrusions; The connecting steel bar can move within the receiving space, thereby being set in the receiving space in an inclined state or a horizontal state. When the connecting steel bar is set in the receiving space in a horizontal state, the first side extends out of the connecting end face. The connecting portion includes at least two vertically adjacent protrusions, and the connecting steel bar also includes a second side close to the wall panel body; In a horizontal position, the connecting steel bar is located on the top surface of the lower protrusion of the two adjacent protrusions, and the first side extends out of the connecting end face; In the tilted state, the first side tilts upward toward the upper protrusion of the two adjacent protrusions, and the second side abuts against the top surface of the lower protrusion; or the first side tilts downward toward the lower protrusion of the two adjacent protrusions, and the second side abuts against the bottom surface of the upper protrusion. The upper protrusion includes a first base and a second longitudinal hole penetrating the first base, and the lower protrusion includes a second base and a third longitudinal hole penetrating the second base; The connecting portion further includes a second longitudinal rib, which is located within the second longitudinal hole and the third longitudinal hole, and is connected to the first side and / or the second side. The second longitudinal bar is movable, so that the connecting steel bar is arranged in a horizontal or inclined state within the receiving space; The connecting steel bars are rectangular steel bars or stirrup rings.

4. A precast concrete wall, characterized in that, Includes the precast concrete wall panel as described in any one of claims 1-3.

5. The precast concrete wall according to claim 4, characterized in that, It also includes precast concrete spliced ​​wall panels; The precast concrete spliced ​​wall panel includes a spliced ​​wall panel body and a splicing part disposed on the spliced ​​wall panel body. The splicing part includes a splicing hole, and the sum of the width of the accommodating space and the width of the splicing hole is greater than or equal to the length of the connecting steel bar.

6. The precast concrete wall according to claim 5, characterized in that, The precast concrete spliced ​​wall panel also includes a third longitudinal reinforcement bar, which is disposed in the splicing hole and connected to the first side of the connecting reinforcement bar; the precast concrete wall panel and the precast concrete spliced ​​wall panel are arranged opposite to each other, and concrete is poured between them.

7. The precast concrete wall according to claim 4, characterized in that, It also includes at least two of the precast concrete wall panels, the connecting steel bars of the at least two precast concrete wall panels are connected, and concrete is poured into the space formed between the precast concrete wall panels.

8. The precast concrete wall according to claim 7, characterized in that, It also includes a fourth longitudinal reinforcement, which is disposed in the intersecting space formed by the connecting reinforcement bars of at least two of the precast concrete wall panels, and the fourth longitudinal reinforcement is connected to at least one of the first sides of the connecting reinforcement bars of at least two of the precast concrete wall panels.

9. The precast concrete wall according to claim 7, characterized in that, It also includes a fifth longitudinal bar, which is disposed outside the intersecting space formed by the connecting bars of at least two of the precast concrete wall panels, and the fifth longitudinal bar is connected to the first side of one or more of the connecting bars of at least two of the precast concrete wall panels.

10. A modular building, characterized in that, The modular building includes at least two prefabricated modules, each prefabricated module including at least two vertical concrete wall panels and a horizontal structure at least partially connected to the at least two vertical concrete wall panels, the horizontal structure being a ceiling and / or a floor; The vertical wall panels between adjacent prefabricated modules are any of the prefabricated concrete wall panels described in claims 1-3.

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