A tension and shear separation type grouting connection structure applied to a modular building

Abstract

This invention relates to the field of modular construction, and more particularly to a tension-shear separation grouting connection structure for modular construction, comprising modular columns, load-bearing components, and high-strength grout. The load-bearing components include shear-resistant components and tensile-resistant components. The shear-resistant and tensile-resistant components independently bear the shear and tensile forces of the connection structure, respectively. The shear-resistant components are positioned between two modular columns and are fixed by the high-strength grout. Furthermore, the tensile-resistant components are interference-fitted with the shear-resistant components, thus fixing the installation position of the tensile-resistant components before the high-strength grout is poured in. Finally, after the positions of the shear-resistant and tensile-resistant components are completely fixed, the high-strength grout is poured in, thereby forming the tensile-resistant components, shear-resistant components, and modular columns into a single unit.

Description

Technical Field

[0001] This invention application relates to the field of modular construction, and more particularly to a tension and shear separation type grouting connection structure for use in modular construction. Background Technology

[0002] Modular architecture refers to the construction of buildings using industrialized production methods. It is an emerging building structure system in which each room of the building is treated as a separate modular unit. These modular units are prefabricated in a factory and then transported to the construction site, where they are assembled using reliable connection methods to form the building.

[0003] In related technologies, the connection structure between modules in existing modular buildings is not strong. The connectors are subjected to both tension and shear, resulting in complex stress conditions and difficulty in ensuring the bearing capacity of nodes, thus affecting the overall structural integrity of the building.

[0004] The aforementioned technologies suffer from complex stress distribution in their connection structures. Summary of the Invention

[0005] To improve the stress conditions of modular building connection structures, this application provides a tension and shear separation type grouting connection structure for modular buildings.

[0006] A tension-shear separation grouting connection structure for modular buildings includes modular columns, load-bearing components, and high-strength grout. The modular columns have grouting holes and accommodating cavities. The accommodating cavities between adjacent sets of modular columns face each other. The load-bearing component includes a shear-resistant component and a tensile-resistant component. The shear-resistant component connects to the tensile-resistant component. The shear-resistant component and the tensile-resistant component fill adjacent sets of modular columns. The high-strength grout is introduced through the grouting holes, forming the modular columns, shear-resistant components, and tensile-resistant components into a single unit.

[0007] By adopting the above technical solution, both shear-resistant and tensile-resistant components are placed within the modular column. These components independently bear the relevant shear and tensile forces, thereby reducing the complexity of the overall structural stress and ensuring that the nodal bearing capacity composed of shear and tensile forces is borne independently by the shear-resistant and tensile-resistant components. Furthermore, the shear-resistant and tensile-resistant components are formed into a single unit by high-strength grout, thus fixing their positions and maintaining good load-bearing performance.

[0008] Optionally, the high-strength grouting material is formulated with high-strength materials as aggregates, cement as binder, and supplemented with substances that have high fluidity, micro-expansion, and anti-segregation properties.

[0009] By adopting the above technical solution, the high-strength grout, after being mixed with water, possesses fluid properties. When the high-strength grout is injected into the cavity, it gradually accumulates from the bottom to the top of the cavity before completely filling it, thus achieving a tight seal. After the high-strength grout solidifies, its high strength further enhances the load-bearing capacity of the overall connection structure.

[0010] Optionally, the module column is also provided with a grout outlet hole, which is used to observe whether the accommodating cavity is full. The grout outlet hole and the grouting hole are respectively located on both sides of the vertical cavity wall inside the accommodating cavity.

[0011] By adopting the above technical solution, the grout outlet can be used to observe whether the accommodating cavity is filled, thereby reducing the waste of high-strength grout. In addition, the weight of the building itself is limited, so the amount of high-strength grout can be controlled according to the distance between the grout outlet and the grouting hole, thereby controlling the weight of the overall connection structure.

[0012] Optionally, the module column includes a square steel member and an inner partition. The square steel member is hollow inside, and the receiving cavity is disposed inside the square steel member. An opening is provided on one side of the receiving cavity. The inner partition is disposed inside the square steel member, dividing the receiving cavity into a grouting area and an empty area. The grouting areas of adjacent square steel members are directly opposite each other.

[0013] By adopting the above technical solution, the volume of the grouting zone can be set according to the actual construction situation. The setting of the empty zone can make the size of the modular column consistent with the construction requirements, and reduce the amount of building materials used without affecting the load-bearing capacity.

[0014] Optionally, the modular column further includes a column end plate, which is disposed at the opening of the grouting zone, and the column end plates of adjacent modular columns respectively press against both sides of the shear-resistant component.

[0015] By adopting the above technical solution, the column end plate is used for positioning, which facilitates the installation of the shear-resistant components. On the other hand, the column end plate and the shear-resistant components jointly seal the accommodating cavity, reducing the possibility of displacement of the shear-resistant components due to the overflow of high-strength grout.

[0016] Optionally, the shear-resistant component has through holes for the tensile-resistant component to pass through. Both ends of the tensile-resistant component extend into the receiving cavities of two adjacent sets of module columns through the through holes, and the tensile-resistant component seals the receiving cavities.

[0017] By adopting the above technical solution, the position of the shear-resistant component is fixed under the positioning action of the column end plate. The shear-resistant component further positions the tensile component, thereby determining the positional relationship between the modular column, the shear-resistant component, and the tensile component, and maintaining a good connection structure under stress.

[0018] Optionally, the shear-resistant component includes a rubber pad, which is fitted to the through hole, and the tensile-resistant component passes through the through hole.

[0019] By adopting the above technical solution, the tensile component and the rubber pad are interference-fitted, making the installation of the tensile component more stable.

[0020] Optionally, the shear-resistant component includes a horizontal connecting plate, a shear-resistant member, and a round steel pipe. The horizontal connecting plate is fitted to the column end plate, one side of the horizontal connecting plate abuts against the column end plate of one group of modular columns, and the other side of the horizontal connecting plate abuts against the column end plate of another group of modular columns. The horizontal connecting plate is connected to the shear-resistant member, and a through groove is provided in the middle of the horizontal connecting plate. The shear-resistant member is arranged along the groove wall. The round steel pipe is connected to the shear-resistant member, and the length of the round steel pipe extends away from the grouting hole.

[0021] By adopting the above technical solution, the horizontal connecting plate can be used for positioning and forms a seal between two adjacent module columns, reducing the overflow of subsequent high-strength filling material. The shear-resistant component plays a role in bearing shear force. The round steel pipe also forms a positioning connection with the column end plate, further maintaining the positional relationship of the connection structure.

[0022] Optionally, the tensile strength component includes a tie rod that passes through the through hole, and the length of the tie rod along the direction close to the grouting hole is greater than the length of the round steel pipe.

[0023] By adopting the above technical solution, the tie rod is used to resist tensile force. In addition, the length relationship can be checked by observing whether the high-strength grouting material has buried the tie rod through the grout outlet.

[0024] Optionally, the tensile component further includes end caps, the surfaces on both sides of the pull rod are provided with threads, and two sets of end caps are provided, with the two sets of end caps respectively threadedly connected to both sides of the pull rod.

[0025] By adopting the above technical solution, the displacement of the tie rod under the pressure of concrete can be reduced.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. Both shear-resistant and tensile-resistant components are placed within the modular columns. These components independently bear the relevant shear and tensile forces, thereby reducing the complexity of the overall structural stress and ensuring that the nodal load-bearing capacity composed of shear and tensile forces is borne by the independent shear-resistant and tensile-resistant components. Furthermore, the shear-resistant and tensile-resistant components are bonded together with high-strength grout, fixing their positions and maintaining optimal load-bearing performance.

[0028] 2. High-strength grout, when mixed with water, possesses fluid properties. When injected into the cavity, it gradually accumulates from the bottom to the top before completely filling, achieving a tight seal. After solidification, the high-strength grout exhibits high strength, further enhancing the load-bearing capacity of the overall connection structure.

[0029] 3. The grout outlet allows observation of whether the accommodating cavity is fully filled, thus reducing the waste of high-strength grout. In addition, the weight of the building itself is limited, so the amount of high-strength grout used can be controlled according to the distance between the grout outlet and the grouting hole, thereby controlling the weight of the overall connection structure. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2 This is an exploded view of the module column structure according to an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the shear-resistant component according to an embodiment of this application;

[0033] Figure 4 This is a structural schematic diagram of the tensile strength component according to an embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Modular column; 11. Square steel component; 12. Column end plate; 121. Mounting hole; 13. Inner partition; 14. Accommodation cavity; 141. Grouting area; 142. Empty area; 143. Grouting hole; 144. Grout outlet hole; 2. Load-bearing component; 21. Shear force component; 211. Horizontal connecting plate; 212. Shear force component; 213. Round steel pipe; 214. Rubber pad; 215. Through hole; 22. Tensile force component; 221. Tie rod; 222. End; 3. High-strength grouting material. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail.

[0037] This application discloses a tension-shear separation grouting connection structure for modular buildings, which is used to improve the load-bearing capacity of the connection structure nodes.

[0038] Reference Figure 1 and Figure 2 A tension-shear separation grouting connection structure for modular buildings includes modular columns 1, load-bearing components 2, and high-strength grout 3. In this embodiment, two sets of modular columns 1 are provided, with two modular columns 1 in each set, placed vertically. The load-bearing component 2 includes a shear-resistant component 21 and a tensile-resistant component 22. The shear-resistant component 21 is used to improve the shear resistance of the overall connection structure, and the tensile-resistant component 22 is used to improve the tensile resistance of the overall connection structure. The shear-resistant component 21 is connected to the modular column 1, and the tensile-resistant component 22 is connected to the modular column 1. The high-strength grout 3 is used to connect two adjacent modular columns 1, and the high-strength grout 3 connects the modular column 1, the shear-resistant component 21, and the tensile-resistant component 22 into a whole. The purpose of this design is that the high-strength grout 3 integrates the shear-resistant component 21, the tensile-resistant component 22, and the modular column 1 into a whole. The shear-resistant component 21 and the tensile-resistant component 22 are used to bear the shear force and tensile force respectively, so that the different bearing capacities of the whole are borne by different structures, thereby reducing the unclear situation of mixed tensile and shear forces in the existing modular building connection structure.

[0039] Reference Figure 1 and Figure 2 The modular column 1 includes a square steel member 11, a column end plate 12, and an inner partition 13. The square steel member 11 is hollow inside, with an opening at one end. The inner partition 13 is located inside the square steel member 11. In this embodiment, the inner partition 13 is made of a horizontal steel plate. The column end plate 12 is also made of a horizontal steel plate and is located on one side of the square steel member 11, and is fixedly connected to the square steel member 11. Therefore, the side wall of the square steel member 11 and the column end plate 12 form a receiving cavity 14. Furthermore, the inner partition 13 divides the receiving cavity 14 into a grouting area 141 and an empty area 142. The purpose of this arrangement is that the grouting area 141 can be used to inject high-strength grout 3, while the empty area 142 is not injected, thereby reducing material waste while maintaining the load-bearing capacity of the connection structure.

[0040] Reference Figure 1 and Figure 2The accommodating cavity 14 has a grouting hole 143 and a grout outlet 144 on its sidewall. The grouting hole 143 is located on the side of the grouting zone 141 near the shear-resistant component 21, and the grout outlet 144 is located on the top wall of the grouting zone 141. In this embodiment, high-strength grout 3 is injected through the grouting hole 143, and the grout outlet 144 is used to determine whether the grouting is complete. In addition, to facilitate the installation of the shear-resistant component 21, the column end plate 12 has an installation hole 121 for the shear-resistant component 21 to pass through.

[0041] Furthermore, the high-strength grout 3 is formulated with high-strength materials as aggregates, cement as a binder, and supplemented with substances that promote high fluidity, micro-expansion, and anti-segregation. In actual use, the high-strength grout 3, after being mixed with water, exhibits fluid properties. When injected into the grouting area 141 through the grouting hole 143, it gradually accumulates from the bottom to the top of the grouting area 141, thus completely filling the entire grouting area 141. Moreover, after solidification, the strength of the solid high-strength grout 3 increases, further enhancing the load-bearing capacity of the connected structure.

[0042] Reference Figure 1 and Figure 3 The shear-resistant component 21 includes a horizontal connecting plate 211, a shear-resistant member 212, a round steel pipe 213, and a rubber pad 214. The horizontal connecting plate 211 is made of a horizontal steel plate and is disposed between two module columns 1, filling the gap between the two module columns 1. The horizontal connecting plate 211 is set to fit the horizontal cross-sectional area of ​​the column end plate 12 and abuts against the side wall of the column end plate 12. The horizontal connecting plate 211 is connected to the shear-resistant member 212, and the shear-resistant member 212 is connected to the round steel pipe 213.

[0043] Specifically, the shear-resistant component 212 is fixed to the horizontal connecting plate 211, and the round steel pipe 213 is fixed to one side of the horizontal connecting plate 211. The horizontal cross-sectional area of ​​the shear-resistant component 212 is larger than that of the round steel pipe 213. To facilitate the installation of the tensile-resistant component 22, the shear-resistant component 212 is provided with a through hole 215. In addition, a rubber pad 214 is set in the through hole 215. During the installation process, the tensile-resistant component 22 passes through the through hole 215, and the outer wall of the tensile-resistant component 22 presses against the rubber pad 214, so that an interference fit is formed between the tensile-resistant component 22 and the through hole 215, thereby reducing the movement of the tensile-resistant component before the high-strength grout 3 is poured.

[0044] Reference Figure 1 and Figure 4The tensile component includes a tie rod 221 and an end 222. The tie rod 221 passes through the through hole 215 and the side wall of the tie rod 221 presses against the rubber pad 214. The tie rod 221 seals the accommodating cavity 14. Two ends 222 are provided and are threaded to the two ends of the tie rod 221 respectively to maintain the stability of the position of the tie rod 221, thereby improving the tensile strength of the overall connection structure.

[0045] The implementation principle of this application embodiment is as follows: Shear-resistant component 21 and tensile-resistant component 22 independently bear the shear and tensile forces of the building, respectively. Shear-resistant component 21 is disposed between two modular columns 1 and is fixed by high-strength grout 3. Moreover, tensile-resistant component 22 is interference-fitted with shear-resistant component 21, thereby fixing the installation position of tensile-resistant component 22 before the high-strength grout 3 is poured in. Finally, after the positions of shear-resistant component 21 and tensile-resistant component 22 are completely fixed, high-strength grout 3 is poured in, thereby forming tensile-resistant component 22, shear-resistant component 21 and modular column 1 into a whole, and tensile-resistant component 22 and shear-resistant component 21 independently bear different forces, thereby improving the load-bearing capacity of the overall connection structure.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tension-shear separation grouting connection structure for modular buildings, characterized in that, The system includes modular columns (1), load-bearing components (2), and high-strength grout (3). The modular columns (1) have grouting holes (143) and accommodating cavities (14). The accommodating cavities (14) between two adjacent sets of modular columns (1) face each other. The load-bearing components (2) include shear-resistant components (21) and tensile-resistant components (22). The shear-resistant components (21) are connected to the tensile-resistant components (22). The shear-resistant components (21) and the tensile-resistant components (22) fill the adjacent sets of modular columns (1). The high-strength grout (3) is introduced from the grouting holes (143) to form the modular columns (1), shear-resistant components (21), and tensile-resistant components (22) into a whole. The shear-resistant component (21) has a through hole (215) for the tensile-resistant component (22) to pass through. Both ends of the tensile-resistant component (22) extend into the accommodating cavity (14) of the two adjacent sets of module columns (1) through the through hole (215), and the tensile-resistant component (22) seals the accommodating cavity (14). The module column (1) includes a square steel member (11) and an inner partition (13). The square steel member (11) is hollow inside. The accommodating cavity (14) is disposed inside the square steel member (11). An opening is provided on one side of the accommodating cavity (14). The inner partition (13) is disposed inside the square steel member (11) and divides the accommodating cavity (14) into a grouting area (141) and an empty area (142). The grouting areas (141) of adjacent square steel members (11) are directly opposite each other. The module column (1) also includes a column end plate (12), which is disposed at the opening of the grouting area (141), and the column end plates (12) of adjacent module columns (1) respectively press against the two sides of the shear-resistant component (21); The shear-resistant component (21) includes a horizontal connecting plate (211), a shear-resistant member (212), and a round steel pipe (213). The horizontal connecting plate (211) is fitted to the column end plate (12). One side of the horizontal connecting plate (211) abuts against the column end plate (12) of a group of modular columns (1), and the other side of the horizontal connecting plate (211) abuts against the column end plate (12) of another group of modular columns (1). The horizontal connecting plate (211) is connected to the shear-resistant member (212). A through groove is provided in the middle of the horizontal connecting plate (211). The shear-resistant member (212) is arranged along the groove wall. The round steel pipe (213) is connected to the shear-resistant member (212), and the length of the round steel pipe (213) extends away from the grouting hole (143). The tensile component (22) includes a tie rod (221), which passes through the through hole (215) and the length of the tie rod (221) along the direction close to the grouting hole (143) is greater than the length of the round steel pipe (213); The tensile component (22) also includes an end (222). The surfaces on both sides of the pull rod (221) are provided with threads. Two sets of the end (222) are provided, and the two sets of the end (222) are respectively threaded to both sides of the pull rod (221).

2. The tension-shear separation grouting connection structure for modular buildings according to claim 1, characterized in that, The high-strength grout (3) is made of high-strength materials as aggregates, cement as binder, and supplemented with highly fluid, micro-expansion, and anti-segregation substances.

3. The tension-shear separation type grouting connection structure for modular buildings according to claim 1, characterized in that, The module column (1) is also provided with a grout outlet (144), which is used to observe whether the accommodating cavity (14) is full. The grout outlet (144) and the grouting hole (143) are located on both sides of the vertical cavity wall inside the accommodating cavity (14).

4. A tension-shear separation grouting connection structure for modular buildings according to claim 1, characterized in that, The shear-resistant component (21) includes a rubber pad (214) which is fitted to the through hole (215), and the tensile-resistant component (22) is inserted through the through hole (215).

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