Prefabricated construction structure

Abstract

The present disclosure generally relates to a prefabricated building module (100), a building structure (50) comprising a prefabricated building module (100), and a method for constructing a building structure (50). A prefabricated building module (100) comprises a structural body (102) and a groove (106) formed longitudinally along a groove-shaped surface (108) of the structural body (102) and arranged to receive a connecting member (110) for joining to another prefabricated building module (100). A transverse cross-section of the groove (106) includes a first groove portion (112) and a second groove portion (114), the first groove portion (112) being formed between the groove-shaped surface (108) and the second groove portion (114), the first groove portion (112) being narrower than the second groove portion (114).

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202511928132.5 (22) Application Date 2020.08.14 (62) Divisional Application Data 202080103957.2 2020.08.14 (71) Applicant Li Yanfang Address Singapore Singapore City Applicant Lai Daoyi Weihe Construction Pte Ltd (72) Inventors Li Yanfang Lai Daoyi Cai Qingyun (74) Patent Agency Chengdu Fandian Intellectual Property Agency Co., Ltd. 51258 Patent Attorney Li Jingbo (51) Int.Cl. E04B 1 / 61 (2006.01) E04B 1 / 04 (2006.01) E04G 21 / 14 (2006.01) (54) Title of Invention: Prefabricated Building Structure (57) Abstract: This disclosure generally relates to prefabricated building modules (100), building structures (50) including prefabricated building modules (100), and methods for constructing building structures (50). The prefabricated building module (100) includes a structural body (102) and a groove (106) formed longitudinally along a groove-shaped surface (108) of the structural body (102) and arranged to receive a connecting member (110) for connection to another prefabricated building module (100). The transverse section of the groove (106) includes a first groove portion (112) and a second groove portion (114), the first groove portion (112) being formed between the groove-shaped surface (108) and the second groove portion (114), the first groove portion (112) being narrower than the second groove portion (114). Claims (3 pages), Description (11 pages), Drawings (18 pages), CN 121781690 A, 2026.04.03, CN 1 21 78 16 90 A. 1. A prefabricated building module, comprising: a connecting member; a structural body; and a groove integrally formed in the structural body to receive the connecting member for connecting the prefabricated building module to another prefabricated building module, the groove being longitudinally arranged along a groove-shaped surface of the structural body and extending at least partially through the structural body, wherein the transverse section of the groove includes a first groove portion and a second groove portion, the first groove portion being formed between the groove-shaped surface and the second groove portion; wherein the outer end portion of the first groove portion is aligned with the groove-shaped surface, and the inner end portion of the first groove portion is aligned with a groove portion engagement portion, the groove portion engagement portion being adjacent to the first groove portion and the second groove portion;Wherein, the first groove portion has an equal width between its inner end and outer end; wherein, the width of the first groove portion adjacent to the joint portion of the groove portion is less than the width of the second groove portion adjacent to the joint portion of the groove portion; and wherein, the total width of the connecting member is less than the width of the first groove portion. 2. The prefabricated building module according to claim 1, wherein the width of the first groove portion is 4.5 times the total width of the connecting member. 3. The prefabricated building module according to claim 1, wherein the centroid of the second groove portion substantially coincides with the geometric center of the structural body. 4. The prefabricated building module according to claim 1, wherein each groove cross-section has a quadrilateral profile. 5. The prefabricated building module according to claim 1, wherein the prefabricated building module comprises a plurality of grooves formed adjacent to each other. 6. A building structural member comprising: a first prefabricated building module and a second prefabricated building module arranged adjacent to each other, each prefabricated building module including a structural body and a groove integrally formed in the structural body, the groove being arranged longitudinally along a groove-shaped surface of a respective structural body and extending at least partially through the structural body; the prefabricated building modules being arranged such that the respective grooves face each other and a connecting gap including the grooves is formed between the respective groove-shaped surfaces; a connecting member inserted into the connecting gap; and a connecting filler material filling the connecting gap and connecting the prefabricated building modules together, wherein, for each prefabricated building module, the transverse section of the respective groove includes a first groove portion and a second groove portion, the first groove portion being formed between the respective groove-shaped surface and the second groove portion; wherein the outer end portion of the first groove portion is aligned with the groove-shaped surface, and the inner end portion of the first groove portion is aligned with a groove portion joint, the groove portion joint being adjacent to the first groove portion and the second groove portion; Wherein, the first groove portion has an equal width between its inner end and outer end; Claim 1 / 3 page 2 CN 121781690 A Wherein, the width of the first groove portion adjacent to the joint portion of the groove portion is less than the width of the second groove portion adjacent to the joint portion of the groove portion; and wherein, the total width of the connecting member is less than the width of the first groove portion. 7. The building structural member according to claim 6, wherein the width of the first groove portion is 4.5 times the total width of the connecting member. 8. The building structural member according to claim 6, wherein the connecting member comprises:A plurality of longitudinal rods, each extending through a corresponding second groove portion; and a group of lateral connecting elements that connect the longitudinal rods and extend across the connecting gap. 9. A method for constructing a building structural member, the method comprising: providing a plurality of prefabricated building modules, each prefabricated building module including a structural body and a groove, the groove being integrally formed in a respective structural body, the groove being arranged longitudinally along a groove-shaped surface of the respective structural body and extending at least partially through the respective structural body; arranging a first pair of prefabricated building modules adjacent to each other such that the respective grooves face each other and a first connecting gap including the grooves is formed between the respective groove-shaped surfaces; inserting a first connecting member into the first connecting gap; filling the first connecting gap with a connecting filler material to connect the first pair of prefabricated building modules together; and curing the connecting filler material to construct the building structural member including the connected prefabricated building modules, wherein, for each prefabricated building module, the transverse section of the respective groove includes a first groove portion and a second groove portion, the first groove portion being formed between the respective groove-shaped surface and the second groove portion; Wherein, the outer end of the first groove portion is aligned with the groove-shaped surface, and the inner end of the first groove portion is aligned with the groove portion engagement portion, the groove portion engagement portion being adjacent to the first groove portion and the second groove portion; wherein, the first groove portion has an equal width between the inner end and the outer end of the first groove portion; wherein, the width of the first groove portion adjacent to the groove portion engagement portion is less than the width of the second groove portion adjacent to the groove portion engagement portion; and wherein, the total width of the connecting member is less than the width of the first groove portion. 10. The method of claim 9, further comprising connecting a second pair of prefabricated building modules arranged relative to the first pair of prefabricated building modules. 11. The method of claim 10, further comprising arranging the second pair of prefabricated building modules relative to the first pair of prefabricated building modules such that the first connecting member at least partially extends into a second connecting gap formed between the second pair of prefabricated building modules. 12. The method of claim 10, further comprising arranging the second pair of prefabricated building modules relative to the first pair of prefabricated building modules such that the second connecting member of the second pair of prefabricated building modules extends at least partially into the first connecting gap. 13. A prefabricated building module, the prefabricated building module comprising; Claims 2 / 3 pages 3 CN 121781690 AA connecting member; a structural body; and a groove integrally formed in the structural body to receive the connecting member for connecting the prefabricated building module to another prefabricated building module, the groove being longitudinally arranged along a groove-shaped surface of the structural body and extending at least partially through the structural body, wherein the connecting member comprises: a plurality of longitudinal rods, each extending through a corresponding groove; and a group of lateral connecting elements connecting the longitudinal rods, each lateral connecting element comprising a pair of shear studs connected to each other and to the longitudinal rods. Claims 3 / 3 Page 4 CN 121781690 A Precast Building Structure

[0001] This application is a divisional application of Chinese invention patent application filed on August 14, 2020, with national application number 2020801039572 (PCT / SG2020 / 050470) and entitled "Precast Building Structure". Technical Field

[0002] This disclosure generally relates to precast building structures. More specifically, this disclosure describes various embodiments of precast building modules, building structures including precast building modules, and methods for constructing building structures. Background Art

[0003] In the construction industry, on-site construction methods such as pouring concrete on-site are known and commonly used, but these methods are often labor-intensive and time-consuming. Off-site precast concrete structures or precast concrete structures are increasingly used because this reduces construction time on the construction site. Precast structural components are connected on-site using connecting members anchored therebetween. Recently, precast prefabricated volumetric building components (PPVCs) have been adopted in the construction industry, and this is a new method that has been developed to significantly accelerate construction. In PPVCs, building modules with precast structural components, such as entire rooms, are prefabricated in off-site manufacturing facilities before being transported to the site. On the construction site, the precast building modules are connected and assembled to construct building structural components such as buildings. The precast building modules are formed with connecting members, allowing them to be connected and assembled via these connecting members.

[0004] Singapore Patent 10201703972W describes a precast building module comprising a panel body and guides, such as wire loops, partially embedded in the panel body. The guides need to be accurately positioned within the precast building module to be properly aligned and connected with another precast building module. Prefabrication of building modules requires significant time to ensure proper placement of guide components, thus slowing down manufacturing and overall build productivity. From the panel...The protruding steel guides of the component body may cause obstacles during on-site assembly and may be harmful or dangerous to on-site workers, especially in the event of a worker accidentally falling or bumping into the steel guides.

[0005] Therefore, in order to solve or mitigate at least one of the above problems and / or disadvantages, there is a need to provide an improved prefabricated building module, a building structure including the prefabricated building module, and a method for constructing the building structure. Summary of the Invention

[0006] According to a first aspect of the present disclosure, there is a prefabricated building module including a structural body and a groove formed longitudinally along a grooved surface of the structural body, and the groove being arranged to receive a connecting member for connection to another prefabricated building module. The transverse section of the groove includes a first groove portion and a second groove portion, the first groove portion being formed between the grooved surface and the second groove portion, the first groove portion being narrower than the second groove portion.

[0007] According to a second aspect of the present disclosure, there is a building structure including a first prefabricated building module and a second prefabricated building module arranged adjacent to each other. Each prefabricated building module includes a structural body and a groove formed longitudinally along the groove-shaped surface of the respective structural body. The prefabricated building modules are arranged such that the respective grooves face each other, and a connecting gap including the groove is formed between the respective groove-shaped surfaces. The building structure also includes: a connecting member inserted into the connecting gap; and a connecting filler material that fills the connecting gap and connects the prefabricated building modules together. For each prefabricated building module, the transverse section of the respective groove includes a first groove portion and a second groove portion, the first groove portion being formed between the respective groove-shaped surface and the second groove portion, the first groove portion being narrower than the second groove portion.

[0008] According to a third aspect of this disclosure, there is a method for constructing a building structure. The method includes: providing a plurality of prefabricated building modules, each prefabricated building module including a structural body and a groove formed longitudinally along a groove-shaped surface of a respective structural body; arranging a first pair of prefabricated building modules adjacent to each other such that the respective grooves face each other and a first connecting gap including the grooves is formed between the respective groove-shaped surfaces; inserting a first connecting member into the first connecting gap; filling the first connecting gap with a connecting filler material to connect the first pair of prefabricated building modules together; and curing the connecting filler material to construct a building structure including the connected prefabricated building modules. For each prefabricated building module, the transverse section of the respective groove includes a first groove portion and a second groove portion, the first groove portion being formed between the respective groove-shaped surface and the second groove portion, the first groove portion being narrower than the second groove portion.

[0009] Therefore, prefabricated building modules according to this disclosure, building structural members including prefabricated building modules, and methods for constructing building structural members are disclosed herein. Various features, aspects, and advantages of this disclosure will become more apparent from the following detailed description of embodiments of this disclosure by way of non-limiting example only, in conjunction with the accompanying drawings. Brief Description of the Drawings

[0010] Figures 1A and 1B are examples of building structural members including pairs of prefabricated building modules according to some embodiments of this disclosure.

[0011] Figures 2A and 2B are examples of another building structural member including pairs of prefabricated building modules according to some embodiments of this disclosure.

[0012] Figures 3A, 4A, 5A, and 6A are various examples of the transverse cross-section of a groove in a prefabricated building module according to some embodiments of this disclosure.

[0013] Figures 3B, 4B, 5B, and 6B are various examples of the transverse cross-section of a groove in another prefabricated building module according to some embodiments of this disclosure.

[0014] Figures 7A to 7H are various illustrations of connecting members for linking pairs of prefabricated building modules in building structural members according to some embodiments of the present disclosure.

[0015] Figure 8 is a flowchart illustration of a method for constructing a building structural member according to some embodiments of the present disclosure.

[0016] Figures 9A to 9E are various illustrations of prefabricated structural members including pairs of prefabricated building modules connected in various arrangements according to some embodiments of the present disclosure. Detailed Description

[0017] For the purposes of brevity and clarity, the description of embodiments of the present disclosure is directed to prefabricated building modules, building structural members including prefabricated building modules, and methods for constructing building structural members, with reference to the accompanying drawings. Although various aspects of the present disclosure will be described in conjunction with the embodiments provided herein, it should be understood that these embodiments are not intended to limit the present disclosure to these embodiments. Conversely, this disclosure is intended to cover alternatives, modifications, and equivalents to the embodiments described herein (page 2 / 11, CN 121781690 A), which are included within the scope of this disclosure as defined by the appended claims. Furthermore, in the following detailed description, specific details are set forth in order to provide a thorough understanding of this disclosure. However, it will be recognized by those skilled in the art that this disclosure can be practiced without specific details and / or can be practiced with a variety of details arising from combinations of aspects of particular embodiments. In many cases, known systems, methods, process steps, and components are not described in detail to avoid unnecessarily obscuring aspects of the embodiments of this disclosure.

[0018] In embodiments of this disclosure, descriptions of given elements or specific reference numerals in particular drawings are used.The consideration or use of an element or reference in the corresponding descriptive material may include the same, equivalent, or similar element or reference numeral identified in another drawing or in descriptive material associated with that other drawing.

[0019] References to “implementation / example,” “another implementation / example,” “some implementations / examples,” “some other implementations / examples,” etc., indicate that one or more implementations / examples so described may include a particular feature, structure, characteristic, performance, element, or limitation, but not every implementation / example must include that particular feature, structure, characteristic, performance, element, or limitation. Furthermore, repeated use of the phrase “in an implementation / example” or “in another implementation / example” does not necessarily refer to the same implementation / example.

[0020] The terms “comprising,” “including,” “having,” etc., do not exclude the presence of other features / elements / steps besides those listed in the implementation. Listing certain features / elements / steps in mutually different implementations does not mean that combinations of these features / elements / steps cannot be used in the implementation.

[0021] As used herein, the terms “a” and “an” are defined as one or more. Unless otherwise stated, the “ / ” used in the accompanying drawings or associated text is understood to mean “and / or”. Listing specific numerical values ​​or ranges herein is understood to include or refer to an enumeration of approximate numerical values ​​or ranges. According to known mathematical definitions, the term “group” is defined as a non-empty finite group of elements that mathematically presents at least one cardinality (e.g., a group defined herein may correspond to a unit, a single unit, or a group of unit components, or a group of multiple elements). The terms “first,” “second,” “third,” etc., are used only as markings or identifiers and are not intended to impose numerical requirements on their respective terms. The term “each other” indicates a relationship between two or more elements.

[0022] An illustrative or exemplary embodiment of this disclosure describes a prefabricated building module 100 and a building structure 50 comprising a plurality of prefabricated building modules 100. Figures 1A and 2A illustrate some embodiments of the building structure 50, which includes a first prefabricated building module 100a and a second prefabricated building module 100b arranged adjacent to each other.

[0023] In one embodiment, the building structure 50 is a wall, floor, or ceiling structure (etc.) comprising a plurality of prefabricated building modules 100 connected together, including by being stacked on top of each other. In another embodiment, the building structure 50 forms a structural frame for a habitable unit or apartment (or a portion thereof), the building structure 50 comprising a plurality of prefabricated building modules 100 connected together, wherein each prefabricated building module 100 is formedThe prefabricated building modules 100 can be connected to form the four walls, floor, and ceiling of a room. In another embodiment, the building structure 50 is a building comprising a plurality of connected prefabricated building modules 100, such as rooms connected to form an apartment and apartments connected to form building floors / floors. The building structure 50 can be a single-story or multi-story building with various prefabricated building modules 100. The above examples are non-limiting and it is understood that various types of prefabricated building modules 100 and building structures 50 can be used in the PPVC industry.

[0024] Each prefabricated building module 100 includes a structural body 102 formed from a suitable material for PPVC, such as precast concrete. The terms “prefabricated” and “precast” are used interchangeably in this disclosure. The structural body 102 can be manufactured in the form of a beam, column, wall, panel, support, or slab. In one embodiment, the structural body 102 is a corner structural column or support for connection to another prefabricated building module 100, such as another room. In another embodiment, the structural body 102 is a wall panel for connection to another prefabricated building module 100, such as a floor / ceiling building module or another wall. The structural body 102 includes a plurality of surfaces, including pairs of opposite end surfaces 104.

[0025] The prefabricated building module 100 includes a group of one or more recesses 106 formed longitudinally along one of the side surfaces of the structural body 102. In many embodiments, the prefabricated building module 100 includes a recess 106 formed longitudinally, i.e., along the z-axis, and the recess 106 extends along a recessed surface 108 of the structural body 102. The recessed surface 108 may refer to a connecting surface arranged to face a corresponding recessed surface 108 of another prefabricated building module 100 to be connected together. In some other embodiments, the prefabricated building module 100 may include two or more recesses 106, and various aspects of this disclosure relating to a prefabricated building module 100 including recesses 106 will be equally or similarly applied to prefabricated building modules 100 including two or more recesses 106.

[0026] The recesses 106 are arranged to receive connecting members 110 for connection to another prefabricated building module 100. The connecting members 110 form a connection between the prefabricated building modules 100 and distribute forces and loads on the prefabricated building modules 100. The connecting members 110 serve as a bridge for transmitting various types of forces, includingDirect tensile forces, interfacial shear friction forces, and pin forces on the prefabricated building module 100. The groove-shaped surface 108, including the groove 106 itself, can be roughened, such as by a sandblasting process, to increase surface roughness and improve the transmission of interfacial shear forces or the transmission of shear forces by friction. The connected prefabricated building modules 100 form the building structure 50 into a monolithic structural unit with increased load-bearing capacity to resist the intended forces of the design, comparable to similar structural members constructed using conventional on-site construction methods.

[0027] In one embodiment, the groove 106 extends through both end surfaces 104 of the structural body 102. A connecting member 110 can be inserted into the groove 106 from either end surface 104. The longitudinal length of the connecting member 110 is at least the longitudinal length of the groove 106, such that the connecting member can extend beyond one or both end surfaces 104 of the structural body 102. The extension can be used to connect to another prefabricated building module 100 above or below.

[0028] In another embodiment, the groove 106 extends from one end surface 104 and partially through the structural body 102 to the desired length, terminating before the other end surface 104. For example, in the case where the prefabricated building module 100 is used for connection to a floor building module, the connecting member 110 may be inserted into the groove 106 from the top end surface 104, and the groove 106 terminates before the bottom end surface 104. Conversely, in the case where the prefabricated building module 100 is used for connection to a ceiling building module, the connecting member 110 may be inserted into the groove 106 from the bottom end surface 104, and the groove 106 terminates before the top end surface 104.

[0029] In many embodiments, the groove 106 has a uniform transverse section (in the xy plane) along its length (along the z-axis). Referring also to Figures 1B and 2B, the transverse section of the groove 106 includes a first groove portion 112 and a second groove portion 114. The second groove portion 114 is preferably the innermost portion of the groove 106 formed inside the structural body 102. The first groove portion 112 is the outer portion formed between the groove-shaped surface 108 and the second groove portion 114. The first groove portion 112 is preferably the outermost portion of the groove 106 recessed from the groove-shaped surface 108 into the structural body 102.

[0030] The first groove portion 112 has a first depth (along the x-axis) and a first width (along the y-axis), and similarly, the second groove portion 114 has a second depth (along the x-axis) and a second width (along the y-axis). Depending on the contour or geometry of the first groove portion 112 and the second groove portion 114, the first width and the second width may refer to the maximum width of the corresponding first groove portion 112 and the second groove portion 114. Specification 4 / 11 Page 8CN 121781690 A

[0031] The first groove portion 112 is narrower than the second groove portion 114. This can be defined as a first width being less than a second width, i.e., the maximum width of the first groove portion 112 is less than the maximum width of the second groove portion 114. The first groove portion 112 and the second groove portion 114 are connected to each other at a groove portion joint 116 along the y-axis. The first groove portion 112 is narrower than the second groove portion 114 such that the width of the first groove portion 112 adjacent to the joint 116 is less than the width of the second groove portion 114 adjacent to the joint 116. Therefore, the groove 106 has a transverse cross section that narrows from the second groove portion 114 to the first groove portion 112. This profile can gradually narrow at the joint 116 like a tapering ramp or it can abruptly narrow like a distinct step.

[0032] In manufacturing the prefabricated building module 100, the prefabricated building module 100 may include reinforcing elements or structural members embedded in the structural body 102, thereby providing structural strength, particularly tensile strength, to the prefabricated building module 100. A groove 106 may be formed in the structural body 102 using a mold structure embedded in a groove-shaped surface 108 of the structural body 102. The mold structure is then removed after casting the structural body 102, thereby forming the groove 106. The mold structure may be formed from one or more thin-walled steel sections and / or corrugated pipes having the desired transverse cross-section of the groove 106. For example, in forming the groove 106 as shown in FIG. 1B, a smaller rectangular thin-walled steel section and a larger rectangular thin-walled steel section are used to form the first groove portion 112 and the second groove portion 114, respectively.

[0033] When constructing the building structure 50, pairs of prefabricated building modules 100 are arranged adjacent to each other such that corresponding recesses 106 face each other and a connecting gap 118 is formed between corresponding recessed surfaces 108. The connecting gap 118 includes the space between the opposing recesses 106 recessed in the corresponding recessed surfaces 108 and the unrecessed portions of the recessed surfaces 108. The connecting gap has a depth (along the x-axis) sized between the corresponding recessed surfaces 108.

[0034] Some exemplary dimensional relationships are described below. The depth of the connecting gap 118 may be approximately 3 times the thickness of the connecting member 110. The first width of the first recessed portion 112 may be approximately 1.5 times the depth of the connecting gap 118. Therefore, the first width of the first recessed portion 112 may be approximately 4.5 times the thickness of the connecting member 110.

[0035] In this arrangement of connecting the prefabricated building modules 100, the grooves 106 forming the connection gaps 118 are large enough and have suitable tolerances to accommodate the connecting members 110, thereby reducing errors that may occur during construction.The groove 106 also serves as a contraction in module 100, preventing the complete unfolding of the shear cone that would cause concrete cone failure. Concrete cone failure is a failure mode in concrete under tensile loads and is typically caused by crack propagation within the concrete. The groove 106 prevents crack propagation completely through the structural body 102, thereby preventing the shear cone from fully unfolding.

[0036] Additionally, the first groove portions 112 of the two grooves 106 form a contracting or narrowing path on the connection gap 118 to insert the connecting member 110 into the connection gap 118. The narrowing path reduces the tolerance between the connecting member 110 and the side of the first groove portion 112. This restricts the movement of the connecting member 110 within the connection gap 118 and improves the structural stability of the connection between the prefabricated building modules 100.

[0037] In some embodiments shown in Figures 1A and 1B, each prefabricated building module 100 has a transverse cross-section, wherein the total depth is at least 90 mm, and the first depth of the first groove portion 112 may be at least half or approximately equal to the second depth of the second groove portion 114. Additionally, the first depth may be greater than the depth of the connecting gap. As an example, each prefabricated building module 100 has a transverse cross-section with a total depth of 125 mm. Furthermore, the first depth is approximately 35 mm to 45 mm, the second depth is approximately 45 mm, and the connecting gap is approximately 20 mm.

[0038] In some embodiments shown in Figures 2A and 2B, each prefabricated building module 100 has a transverse cross-section, wherein the total depth is at least 90 mm, and the first depth of the first groove portion 112 may be less than half the second depth of the second groove portion 114. For example, the first depth of the first groove portion 112 may be the thickness of the structural material forming the groove 106. Additionally, the first depth can be less than the depth of the connecting gap. As an example, each prefabricated building module 100 has a transverse section with a total depth of 100 mm. Furthermore, the first depth is approximately 5 mm to 8 mm, the second depth is approximately 45 mm, and the depth of the connecting gap is approximately 20 mm.

[0039] In the embodiment of the prefabricated building module 100 shown in Figures 1A and 2A, each of the first recess portion 112 and the second recess portion 114 has a quadrilateral profile, such as having a square or rectangular profile. The quadrilateral profile may have right angles or acute angles as shown, but optionally may have rounded / beveled / sloping corners. Referring also to Figure 3A, the centroid of the second recess portion 114 substantially coincides with the geometric center of the structural body 102. Similarly, in Figures 1B andIn the embodiment of the prefabricated building module 100 shown in FIG. 2B, each of the first recess portion 112 and the second recess portion 114 has a quadrilateral profile, such as a square or rectangular profile. However, referring to FIG. 3B, although the recess 106 is centered along the y-axis of the structural body 102, the centroid of the second recess portion 114 may not coincide with the geometric center of the structural body 102.

[0040] FIG. 3A and FIG. 3B show recess portions 112, 114 with quadrilateral profiles. In some other embodiments, recess portions 112, 114 may have other profiles or geometries, such as, but not limited to, circular, trapezoidal and elliptical. FIG. 4A, FIG. 5A and FIG. 6A show some examples of various profiles of the first recess portion 112 and the second recess portion 114 of the prefabricated building module 100. FIG. 4B, FIG. 5B and FIG. 6B show some examples of various profiles of the first recess portion 112 and the second recess portion 114 of the prefabricated building module 100. The first groove portion 112 may have a relatively thin first depth, and due to this thinness, the first groove portion 112 may be referred to as an inlet groove or hole leading to the second groove portion 114. The above examples are non-limiting, and it should be understood that groove portions 112, 114 of various profiles or geometries may exist.

[0041] After the prefabricated building modules 100 are arranged and the connecting gaps 118 are formed, connecting members 110 are inserted into the connecting gaps 118. Thus, connecting members 110 can be readily inserted into the connecting gaps 118 from the end surface 104 of the structural body 102, especially where access to the connecting gaps 118 is limited to the end surface 104.

[0042] In some embodiments, the building structure 50 includes a single connecting member 110 inserted into the connecting gaps 118. In some embodiments, the building structure 50 may include two or more connecting members 110 inserted into the connecting gaps 118. The structure of each connecting member 110 is described below. It should be understood that the two or more connecting members 110 inserted between the prefabricated building modules 100 may be identical or different from each other.

[0043] As shown in FIG7A, the connecting member 110 includes a plurality of longitudinal rods 120 and a group of one or more lateral connecting elements 122 connecting the longitudinal rods 120. For example, the connecting member 110 has pairs of longitudinal rods 120, and the lateral connecting elements 122 are connected to two rods 120. In some embodiments, the connecting member 110 may have three or more longitudinal rods 120, and the lateral connecting elements 122 are connected to all rods 120. When the connecting member 110 is inserted into the connecting gap 118, the longitudinal rods 120 are arranged such that the longitudinal rods 120 extend through the adjacent longitudinal rods 120.The corresponding groove 106. More specifically, each longitudinal rod 120 extends through the corresponding second groove portion 114, and the lateral connecting element 122 extends across the connecting gap 118.

[0044] The longitudinal rod 120 is a reinforcing rod that bears axial loads along the longitudinal length of the rod 120. When the prefabricated building modules 100 are arranged vertically, the longitudinal rods 120 are similarly arranged vertically and bear vertical loads, such as vertical loads from other prefabricated building modules 100 stacked above. The lateral connecting element 122 is connected to the two longitudinal rods 120 by various mechanical means such as welding or joining, which are readily known to those skilled in the art, so that the connecting member 110 is formed as a monolithic structure. Alternatively, the connecting member 110 may be formed from a single structural material. The lateral connecting element 122 is the primary element for transmitting forces and loads across the longitudinal rods 120, so that the building structure 50 behaves like a monolithic building structure. The longitudinal rod 120 and the lateral connecting elements 122 are formed of structural steel material, such as carbon steel or high-strength / low-alloy steel (see page 6 / 11 of the specification, CN 121781690 A), but may also be other building materials.

[0045] In some embodiments, groups of lateral connecting elements 122 are arranged at multiple discrete locations along the longitudinal length of the rod 120. As shown in FIG7A, there are three lateral connecting elements 122 disposed at discrete locations along the longitudinal rod 120. As shown in FIG7B, there are two pairs of lateral connecting elements 122 disposed at discrete locations along the longitudinal rod 120. The lateral connecting elements 122 may include one or more of reinforcing rods, ring elements, mesh elements, shear studs, and strip elements.

[0046] In some embodiments shown in Figures 7A and 7B, each connecting element 122 includes a steel rod or wire welded to the longitudinal rod 120, such that the connecting member 110 has a mesh structure. In one embodiment shown in Figure 7C, each lateral connecting element 122 includes a bolt connected to the longitudinal rod 120 via an end nut. An example of such a lateral connecting element 122 is a 4.6 grade hexagonal head steel bolt and nut. In one embodiment shown in Figure 7D, each lateral connecting element 122 includes a high-strength wire loop connected to the longitudinal rod 120. Each wire loop may include a connecting portion or clamping portion at the central intersection of the wire loops. In one embodiment shown in Figure 7E, each lateral connecting element 122 includes a pair of shear studs connected to each other and to the longitudinal rod 120. In one embodiment shown in Figure 7F, each lateral connecting element 122 includes an annular reinforcing rod connected to the longitudinal rod 120.In one embodiment shown in FIG. 7G, each lateral connecting element 122 includes a strip element connected to the longitudinal rod 120 via an end anchor plate.

[0047] In some embodiments, the group of lateral connecting elements 122 extends continuously along the longitudinal length of the rod 120. In one embodiment shown in FIG. 7H, the group of lateral connecting elements 122 includes lattice beam elements or reinforcing rods connected to the longitudinal rod 120. The lattice beam elements extend continuously along the longitudinal rod 120 in a meandering / sinusoidal arrangement, thereby connecting to the longitudinal rod 120 at corresponding vertices of the meandering / sinusoidal arrangement. In this embodiment, the connecting member 110 has a structure similar to that of a lattice beam.

[0048] After the connecting member 110 is inserted into the connecting gap 118, a connecting filler material is dispensed to fill the connecting gap 118 and connect the prefabricated building modules 100 together. The connecting filler material may include cement mixtures, epoxy resins, and combinations thereof. Cement mixtures are mixtures of water, cement, and sand. An example of a cement mixture is a grout, such as a high-strength or high-grade grout. The joint gap 118 is filled with grout during processes such as pressure grouting, jet grouting, or by pouring grout under gravity. The grout is preferably a high-strength / non-shrinkage grout containing other compounds such as graded fillers and chemical additives. The joint filler material may include epoxy resin, which may be combined with other fillers such as silica fillers, pigments, and hardeners. It should be understood that other components of the joint filler material may be present. The curing / hardening of the joint filler material bonds the prefabricated building modules 100 together and forms a sealant between the prefabricated building modules 100, thereby preventing external media or contaminants such as rainwater from seeping into the joint gap 118.

[0049] The prefabricated building modules 100 are connected together and supported by each other via connecting members 110, while the joint gap 118 is filled with joint filler material. Therefore, the connecting member 110 stabilizes the prefabricated building module 100 and reduces errors during the filling of the connection gap 118, such as inaccurate distribution of the connection filling material. This reduces the required time and labor, allowing the building structure 50 to be constructed faster and more efficiently.

[0050] Thus, the building structure 50 is constructed from modules 100 manufactured in an off-site facility or factory and transported to the construction site. Productivity can be increased by expanding the manufacturing of modules 100. Compared to on-site concrete pouring, which may be adversely affected by weather conditions, this facility also provides an environment where various factors can be controlled to improve the quality of the precast materials (e.g., concrete) of the modules 100. Modules 100 can be manufactured in the facility while formwork engineering continues on the construction site, thereby reducing construction time and increasing productivity. Specification 7 / 11Page 11 CN 121781690 A

[0051] Another advantage of the building structural member 50 is that the connecting member 110 can be easily inserted into the connection gap 118 formed between the prefabricated building modules 100 without the need for any guides embedded in the respective structural bodies 102. On the construction site, the formwork work for forming the connection is significantly reduced. Conversely, and as described in the background art, the presence of guides such as protruding steel rings / bars / rods would require proper alignment of the guides, thus reducing productivity. The absence of guides in the prefabricated building module 100 makes the manufacture of the module 100 easier, such as by using standardized molds. This increases the productivity of the module 100 in the prefabrication stage of the building structural member 50 and in on-site construction. The absence of guides also eliminates the risk of danger and improves safety on the construction site.

[0052] In addition, due to the less complex design of the prefabricated building module 100 without guides, the production of the prefabricated building module 100 can be automated to further improve productivity. Without prominent guide elements, module 100 is designed to be easy to manufacture and therefore suitable for construction using the Design for Manufacturing and Assembly (DfMA) approach. DfMA is a design approach that focuses on ease of manufacture and assembly efficiency to achieve advantages such as increased construction speed and productivity, reduced construction costs, and improved quality and reliability. DfMA is increasingly being adopted in the construction industry in various countries. For example, the Building and Construction Authority (BCA) of Singapore has identified the DfMA approach as a key strategic driver for improving construction productivity. It should be understood that increased productivity will result in economic benefits beyond just reduced construction costs.

[0053] In various embodiments of this disclosure as shown in FIG8, there is a method 200 for constructing building structural member 50. The design and construction of building structural member 50—including the manufacture and materials of its corresponding prefabricated building module 100, which includes its corresponding components such as structural body 102 and connecting members 110—can be specified by various building, building component, and material specifications / standards known to those skilled in the art. An example in Singapore is the European code EN 1992-1-1, which specifies the use of concrete structures. It should be understood that these codes / standards may vary in different regions of the world.

[0054] Method 200 includes the step 202 of providing a plurality of prefabricated building modules 100. In many embodiments, step 202 provides a first pair of prefabricated building modules 100 including a first module 100 and a second module 100. Method 200 also includes the step 204 of arranging the first pair of prefabricated building modules adjacent to each other such that corresponding recesses 106 face each other and a first connecting gap including the recesses 106 is formed between corresponding recessed surfaces 108.

[0055] Method 200 further includes step 206 of inserting a first connecting member 110 into a first connecting gap 118. For example, the first connecting member 110 is inserted into the first connecting gap 118 via a pair of end surfaces 104. Method 200 further includes step 208 of filling the first connecting gap 118 with a connecting filler material to connect the first pair of prefabricated building modules 100 together. Method 200 further includes step 210 of curing (e.g., hardening) the connecting filler material to construct a building structure 50 including the connected prefabricated building modules 100.

[0056] In the embodiment shown in FIG2A, the first prefabricated building module 100a and the second prefabricated building module 100b are arranged vertically and parallel to each other. The recessed surface 108 is located on the longer side of the respective structural body 102, and the respective recesses 106 face each other. In some other embodiments, the prefabricated building modules 100 may be arranged in different ways, such as horizontally, vertically, and / or parallelly.

[0057] In one embodiment shown in FIG9A, a first prefabricated building module 100a and a second prefabricated building module 100b are arranged vertically and perpendicular to each other. The grooved surface 108 of the first prefabricated building module 100a is located on the longer side of the corresponding structural body 102, and the grooved surface 108 of the second prefabricated building module 100b is located on the shorter side of the corresponding structural body 102. The corresponding grooves 106 face each other to form a first connecting gap 118, and a first connecting member 110 is inserted into the first connecting gap 118. The first connecting gap 118 is filled with a connecting filler material, and after curing, the second prefabricated building module 100b is connected to the first prefabricated building module 100a to construct the internal wall of the building structure specification 8 / 11 pages 12 CN 121781690 A 50.

[0058] In one embodiment shown in FIG. 9B, the first prefabricated building module 100a and the second prefabricated building module 100b are arranged vertically and perpendicular to each other. This embodiment is similar to the embodiment shown in FIG. 9A, and the above aspects are similarly applied. In this embodiment, the second prefabricated building module 100b is connected to the first prefabricated building module 100a to construct the edge wall of the building structure 50.

[0059] In one embodiment shown in FIG. 9C, the first prefabricated building module 100a and the second prefabricated building module 100b are arranged horizontally and parallel to each other on the same horizontal plane. A grooved surface 108 is located on the shorter side of the respective structural body 102, and corresponding grooves 106 face each other to form a first connection gap 118.Component 110 is inserted into the first connecting gap 118, then filled with connecting filler material and cured. Precast building modules 100 are connected to form a precast slab, such as the floor or ceiling of the building structure 50.

[0060] In one embodiment shown in FIG9D, the first precast building module 100a and the second precast building module 100b are arranged horizontally and parallel to each other on the same horizontal plane. The recessed surface 108 is located on the shorter side of the respective structural body 102. Each precast building module 100 includes two recesses 106 formed adjacent to each other. Specifically, the first precast building module 100a has a first recess 106a and a second recess 106a' adjacent to each other. Similarly, the second precast building module 100b has a first recess 106b and a second recess 106b' adjacent to each other. Pairs of first grooves 106a and 106b face each other, and pairs of second grooves 106a' and 106b' face each other, thereby forming a first connecting gap 118.

[0061] A first connecting member 110a and a second connecting member 110b are inserted into the first connecting gap 118 and through the grooves 106. Specifically, the first connecting member 110a is inserted through the pair of first grooves 106a and 106b, and the second connecting member 110b is inserted through the pair of second grooves 106a' and 106b'. The first connecting gap 118 is filled with a connecting filler material, and after curing, the prefabricated building modules 100 are connected to form a precast slab, such as the floor or ceiling of the building structure 50.

[0062] In one embodiment shown in FIG9E, the first prefabricated building modules 100a and the second prefabricated building modules 100b are arranged vertically and parallel to each other. The grooved surface 108 is located on the longer side of the corresponding structural body 102. Each prefabricated building module 100 includes three grooves 106 formed adjacent to each other. Specifically, the first prefabricated building module 100a has a first groove 106a, a second groove 106a', and a third groove 106a' adjacent to each other. Similarly, the second prefabricated building module 100b has a first groove 106b, a second groove 106b', and a third groove 106b' adjacent to each other. The pairs of first grooves 106a and 106b face each other, the pairs of second grooves 106a' and 106b' face each other, and the pairs of third grooves 106a' and 106b' face each other, thereby forming a first connecting gap 118.

[0063] The first connecting member 110a, the second connecting member 110b, and the third connecting member 110c are inserted into the first connecting gap 118 and through the grooves 106. Specifically, the first connecting member 110a is inserted through the pair of first grooves 106a,106b, the second connecting member 110b is inserted through the pair of second grooves 106a', 106b', and the third connecting member 110c is inserted through the pair of third grooves 106a', 106b'. The first connecting gap 118 is filled with connecting filler material, and after curing, the prefabricated building modules 100 are connected to form a precast slab, such as the wall of the building structure 50.

[0064] Although the embodiments shown in FIG. 9D and FIG. 9E respectively show prefabricated building modules 100 having two and three grooves 106, it should be understood that the prefabricated building module 100 may have a plurality (e.g., two, three, four or more) of grooves 106 formed adjacent to each other and a corresponding number of connecting members 110 (e.g., one, two or more connecting members 110 for each connecting gap 118). It should also be understood that the prefabricated building modules 100 do not need to be the same as those described on page 9 / 11 of the specification, i.e., the prefabricated building modules 100 do not need to have the same shape and size.

[0065] In some embodiments, there is a second pair of prefabricated building modules 100 including a third module 100 and a fourth module 100. The second pair of prefabricated building modules 100 are arranged to form a second connecting gap 118 including a corresponding groove 106, wherein a second connecting member 110 is inserted into the second connecting gap 118. It should be understood that the various steps of method 200 for connecting the first pair of prefabricated building modules 100 are similarly or analogously applied to the second pair of prefabricated building modules 100, and will not be further elaborated for the sake of brevity. Method 200 includes connecting the second pair of prefabricated building modules 100 arranged relative to the first pair of prefabricated building modules 100, wherein the arrangement can be horizontal, vertical, and / or parallel.

[0066] In one embodiment, the first pair of prefabricated building modules 100 and the second pair of prefabricated building modules 100 are arranged vertically by stacking the second pair of prefabricated building modules 100 on top of the first pair of prefabricated building modules 100 to form a building structure 50 with high walls. In another embodiment, the first pair of prefabricated building modules 100 and the second pair of prefabricated building modules 100 are arranged horizontally and parallel to each other on the same horizontal plane to form a building structure 50 with a large floor or ceiling. In another embodiment, the first pair of prefabricated building modules 100 and the second pair of prefabricated building modules 100 are arranged perpendicular to each other. For example, the first pair may form a central wall, and the second pair may form the floor or ceiling of the building structure.

[0067] In some embodiments, method 200 includes arranging the second pair of prefabricated building modules 100 relative to the first pair of prefabricated building modules 100.Building module 100, such that the first connecting member 110 or the second connecting member 110 extends at least partially into the second connecting gap 118 or the first connecting gap 118, respectively. This extension or overlap may be a portion or the entire longitudinal length of the respective connecting gap 118. A longitudinal rod 120 of one connecting member 110 may be a steel rod or bar, and a longitudinal rod 120 of the other connecting member 110 may be a bellows, such that the steel rod can be inserted into the bellows to extend into the respective connecting gap 118.

[0068] Method 200 may further include inserting stacked connectors into the first connecting gap 118 and the second connecting gap 118. Stacked connectors are structural elements, such as steel rods or bars, that reinforce the connection between pairs of prefabricated building modules 100.

[0069] The corresponding connecting member 110 or stacked connector extends at least partially into the corresponding connection gap 118 and may extend to the entire longitudinal length of the connection gap 118. Depending on the arrangement of the prefabricated building modules 100, this extension allows vertical or horizontal loads to be transferred to the connecting member 110.

[0070] In one embodiment, a second pair of prefabricated building modules 100 is vertically stacked on top of a first pair of prefabricated building modules 100. The second connecting member 110 extends along the extension into the first connection gap 118. The second connecting member 110 may be inserted into the first connection gap 118 before the first connection gap 118 is filled with a connection filler material or before the connection filler material has fully cured. Alternatively, the first connection gap 118 may be partially filled with connection filler material to the level below the extension. The second connecting member 110 may then be inserted into the first connection gap 118 after the partially filled connection filler material has cured. Partial filling of the first connection gap 118 with a connecting filler material stabilizes the first pair of prefabricated building modules 100 for stacking the second pair of prefabricated building modules 100.

[0071] After stacking the two pairs of prefabricated building modules 100 and inserting the second connecting member 110 into the first connection gap 118, a connecting filler material is distributed to fill the first and second connection gaps 118. The connecting filler material also fills the horizontal connection gaps formed between the two pairs of prefabricated building modules 100. The connecting filler material is cured to construct a building structure 50 comprising the connected pairs of prefabricated building modules 100. Spacer elements may be provided between the two pairs of prefabricated building modules 100. The spacer elements form an enclosed horizontal space between the two pairs of prefabricated building modules 100 for filling the connecting filler material and reducing the risk of leakage during curing. Specification 10 / 11 pages 14 CN 121781690 A

[0072] Additional pairs of prefabricated building modules 100 can be vertically stacked on top of the second pair of prefabricated building modules 100 and connected in a manner similar to that described above for connecting the second pair to the first pair. Specifically, a third pair is connected to the second pair, a fourth pair is connected to the third pair, and so on. Multiple pairs of prefabricated building modules 100 can be stacked to increase the total height of the building structure 50. Similarly, additional pairs can be arranged adjacent / horizontally to widen the building structure 50.

[0073] It should be understood that the above aspects of the second connecting member 110 and the corresponding extension are equally or similarly applicable to the first connecting member 110 and the stacked connectors where applicable, and will not be further elaborated for the sake of brevity. It should also be understood that the above aspects of vertically stacking and connecting pairs of prefabricated building modules 100 are equally or similarly applicable to other arrangements, and will not be further elaborated for the sake of brevity.

[0074] After the building structure 50 is completed, various inspections and tests can be performed to assess the condition of the building structure 50 and its components—including the prefabricated building module 100 and the connections formed in the connection gap 118 by the connecting member 110—in particular, to assess structural integrity. These inspections and tests may be specified by various specifications / standards known to those skilled in the art, but it should be understood that these specifications / standards may vary globally. One example is a sampling test to check the material strength of the connecting member 110. Another test is a grout strength test to check whether the connection filler material (e.g., grout or epoxy resin) has been properly cured and the structure is intact.

[0075] In the foregoing detailed description, embodiments of the present disclosure relating to prefabricated building modules, building structures including prefabricated building modules, and methods for constructing building structures have been described with reference to the accompanying drawings. The description of various embodiments herein is not intended to recall or limit to specific or particular representations of the present disclosure, but is merely illustrative of non-limiting examples of the present disclosure.

[0076] This disclosure is intended to address at least one of the problems and issues associated with the prior art. Although only some embodiments of this disclosure are disclosed herein, it will be apparent to those skilled in the art, in view of this disclosure, that various changes and / or modifications can be made to the disclosed embodiments without departing from the scope of this disclosure. Therefore, the scope of this disclosure and the scope of the claims are not limited to the embodiments described herein. Specification 11 / 11 pages 15 CN 121781690 A Figure 1A Specification Drawings 1 / 18 pages 16 CN 121781690 A Figure 1B Specification Drawings 2 / 18 pages 17 CN 121781690 AFigure 2A Appendix to the Instruction Manual, Page 3 / 18, CN 121781690 A Figure 2B Appendix to the Instruction Manual, Page 4 / 18, CN 121781690 A Figure 3A Figure 3B Appendix to the Instruction Manual, Page 5 / 18, CN 121781690 A Figure 4A Figure 4B Appendix to the Instruction Manual, Page 6 / 18, CN 121781690 A Figure 5A Figure 5B Appendix to the Instruction Manual, Page 7 / 18, CN 121781690 A Figure 6A Figure 6B Appendix to the Instruction Manual, Page 8 / 18, CN 121781690 A Figure 7A Figure 7B Appendix to the Instruction Manual, Page 9 / 18, CN 121781690 A Figure 7C Figure 7D Appendix to the Instruction Manual, Page 10 / 18, CN 121781690 A Figure 7E Figure 7F Appendix to the Instruction Manual, Page 11 / 18, CN 121781690 A 121781690 A Figure 7G Figure 7H Appendix to the Instruction Manual, Page 12 / 18, 27 CN 121781690 A Figure 8 Appendix to the Instruction Manual, Page 13 / 18, 28 CN 121781690 A Figure 9A Appendix to the Instruction Manual, Page 14 / 18, 29 CN 121781690 A Figure 9B Appendix to the Instruction Manual, Page 15 / 18, 30 CN 121781690 A Figure 9C Appendix to the Instruction Manual, Page 16 / 18, 31 CN 121781690 A Figure 9D Appendix to the Instruction Manual, Page 17 / 18, 32 CN 121781690 A Figure 9E Appendix to the Instruction Manual, Page 18 / 18, 33 CN 121781690 A Abstract The present disclosure generally relates to a prefabricated construction module (100), a construction structure (50) comprising the prefabricated construction modules (100), and a method for constructing the construction structure (50). The prefabricated construction module (100) comprises a structural body (102) and a groove(106) formed longitudinally along a grooved surface (108) of the structural body (102) and arranged to receive a connection member (110) for joining to another prefabricated construction module (100). A lateral cross-section of the groove (106) comprises a first groove section (112) and a second groove section (114), the first groove section (112) formed between the grooved surface (108) and the second groove section (114), the first groove section (112) being narrower than the second groove section (114).

Claims

1. A prefabricated building module, the prefabricated building module comprising; Connecting components; Structural body; as well as A groove, integrally formed in the structural body, is provided for receiving a connecting member for linking the prefabricated building module to another prefabricated building module. The groove is arranged longitudinally along a groove-shaped surface of the structural body and extends at least partially through the structural body. The groove has a transverse cross-section comprising a first groove portion and a second groove portion, wherein the first groove portion is formed between the groove-shaped surface and the second groove portion; Wherein, the outer end of the first groove portion is aligned with the groove-shaped surface, and the inner end of the first groove portion is aligned with the groove portion joint portion, the groove portion joint portion being adjacent to the first groove portion and the second groove portion; Wherein, the first groove portion has an equal width between the inner end portion and the outer end portion; Wherein, the width of the first groove portion adjacent to the joint portion of the groove portion is smaller than the width of the second groove portion adjacent to the joint portion of the groove portion; and The total width of the connecting member is less than the width of the first groove portion.

2. The prefabricated building module according to claim 1, wherein, The width of the first groove portion is 4.5 times the total width of the connecting member.

3. The prefabricated building module according to claim 1, wherein, The centroid of the second groove portion roughly coincides with the geometric center of the main body of the structure.

4. The prefabricated building module according to claim 1, wherein, Each groove has a quadrilateral profile.

5. The prefabricated building module according to claim 1, wherein the prefabricated building module comprises a plurality of grooves formed adjacent to each other.

6. A building structural member, the building structural member comprising: A first prefabricated building module and a second prefabricated building module are arranged adjacent to each other. Each prefabricated building module includes a structural body and a groove, the groove being integrally formed in the structural body. The groove is arranged longitudinally along the groove-shaped surface of the corresponding structural body and extends at least partially through the structural body. The prefabricated building modules are arranged such that the corresponding grooves face each other and a connecting gap including the grooves is formed between the corresponding groove-shaped surfaces; A connecting member, which is inserted into the connecting gap; as well as A connecting filler material is used to fill the connection gaps and connect the prefabricated building modules together. For each prefabricated building module, the transverse cross-section of the corresponding groove includes a first groove portion and a second groove portion, wherein the first groove portion is formed between the corresponding groove-shaped surface and the second groove portion; Wherein, the outer end of the first groove portion is aligned with the groove-shaped surface, and the inner end of the first groove portion is aligned with the groove portion joint portion, the groove portion joint portion being adjacent to the first groove portion and the second groove portion; Wherein, the first groove portion has an equal width between the inner end portion and the outer end portion; Wherein, the width of the first groove portion adjacent to the joint portion of the groove portion is smaller than the width of the second groove portion adjacent to the joint portion of the groove portion; and The total width of the connecting member is less than the width of the first groove portion.

7. The building structural member according to claim 6, wherein, The width of the first groove portion is 4.5 times the total width of the connecting member.

8. The building structural member according to claim 6, wherein, The connecting component includes: Multiple longitudinal rods, each extending through a corresponding second groove portion; and A group of lateral connecting elements that connect the longitudinal rod-shaped members, the lateral connecting elements extending across the connecting gap.

9. A method for constructing a building structural member, the method comprising: Multiple prefabricated building modules are provided, each prefabricated building module including a structural body and a groove, the groove being integrally formed in the corresponding structural body, the groove being arranged longitudinally along the groove-shaped surface of the corresponding structural body and extending at least partially through the corresponding structural body; The first pair of prefabricated building modules are arranged adjacent to each other such that the corresponding grooves face each other and a first connecting gap including the grooves is formed between the corresponding groove-shaped surfaces; Insert the first connecting member into the first connecting gap; The first connection gap is filled with a connecting filler material to connect the first pair of prefabricated building modules together; and The connecting filler material is cured to construct the building structure comprising the connected prefabricated building modules. For each prefabricated building module, the transverse cross-section of the corresponding groove includes a first groove portion and a second groove portion, wherein the first groove portion is formed between the corresponding groove-shaped surface and the second groove portion; Wherein, the outer end of the first groove portion is aligned with the groove-shaped surface, and the inner end of the first groove portion is aligned with the groove portion joint portion, the groove portion joint portion being adjacent to the first groove portion and the second groove portion; Wherein, the first groove portion has an equal width between the inner end portion and the outer end portion; Wherein, the width of the first groove portion adjacent to the joint portion of the groove portion is smaller than the width of the second groove portion adjacent to the joint portion of the groove portion; and The total width of the connecting member is less than the width of the first groove portion.

10. The method of claim 9, further comprising connecting a second pair of prefabricated building modules arranged relative to the first pair of prefabricated building modules.

11. The method of claim 10, further comprising arranging the second pair of prefabricated building modules relative to the first pair of prefabricated building modules such that the first connecting member extends at least partially into a second connecting gap formed between the second pair of prefabricated building modules.

12. The method of claim 10, further comprising arranging the second pair of prefabricated building modules relative to the first pair of prefabricated building modules such that the second connecting member of the second pair of prefabricated building modules extends at least partially into the first connecting gap.

13. A prefabricated building module, the prefabricated building module comprising; Connecting components; Structural body; as well as A groove, integrally formed in the structural body, is provided for receiving a connecting member for linking the prefabricated building module to another prefabricated building module. The groove is arranged longitudinally along a groove-shaped surface of the structural body and extends at least partially through the structural body. The connecting component includes: Multiple longitudinal rods, each extending through a corresponding groove; and A group of lateral connecting elements that connect the longitudinal rod-shaped members. Each lateral connecting element includes a pair of shear studs that are connected to each other and to the longitudinal rod.

Images