Modular assembled concrete structure system and construction method thereof

Abstract

The present application relates to the field of construction engineering technology, and in particular to a modular prefabricated concrete structure system and a construction method thereof. The modular prefabricated concrete structure system includes a perforated sleeve and a module unit. The module unit includes a square frame spliced by a plurality of spliced beams and a plurality of spliced columns; the module units are spliced in sequence, the adjacent spliced beams enclose a first casting cavity, and the adjacent spliced columns enclose a second casting cavity. The perforated sleeve is located at the connection between the first casting cavity and the second casting cavity. After concrete is poured in the first casting cavity and the second casting cavity, the concrete in the first casting cavity forms a concrete beam, and the concrete in the second casting cavity forms a concrete column. The concrete beam can connect the spliced beams in the adjacent module units, and the concrete column can connect the spliced columns in the adjacent module units. The perforated sleeve can connect the concrete columns and the concrete beams to improve the seismic performance of the connection nodes of the adjacent module units.

Description

Technical Field

[0001] The present application relates to the field of construction engineering technology, and in particular to a modular prefabricated concrete structure system and a construction method thereof. Background Art

[0002] Prefabricated construction is a powerful path to achieving building industrialization, boasting high-quality components, significantly reduced labor costs, and a short construction period. Compared to traditional prefabricated construction, modular prefabricated buildings offer faster construction, higher building integration, reduced on-site labor requirements, and greater energy efficiency and emission reduction. In a typical modular building, the architecture, structure, finishes, and equipment are all completed in the factory. Through integrated transportation and on-site hoisting and assembly, the goal of "building a house like building a car" is achieved. This construction method significantly reduces material waste and transportation energy consumption. Unlike traditional cast-in-place or prefabricated construction methods, factory prefabrication allows for the effective optimization of building materials and dimensions, controlling the quality of each module unit.

[0003] Currently, modular prefabricated concrete structures often use a combination of steel and concrete, with post-cast concrete wet joints often used to connect adjacent modules. However, this connection method can lead to insufficient seismic resistance in the joints. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a modular prefabricated concrete structure system and a construction method thereof, wherein the modular prefabricated concrete structure system has excellent seismic performance.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the first embodiment of the present application is: a modular prefabricated concrete structure system, including: a perforated sleeve and a module unit.

[0006] The module unit includes a square frame formed by splicing multiple spliced beams and multiple spliced columns; wherein, there are multiple module units, multiple module units are distributed around the open hole sleeve, and multiple module units are spliced in sequence, adjacent spliced beams enclose a first pouring cavity, adjacent spliced columns enclose a second pouring cavity, the open hole sleeve is located at the connection point between the first pouring cavity and the second pouring cavity, and the first pouring cavity and the second pouring cavity are both used for pouring concrete.

[0007] The modular prefabricated concrete structure system provided by the present application has the following beneficial effects: since multiple module units are distributed around the perforated sleeves and multiple module units are spliced in sequence, adjacent spliced beams enclose a first casting cavity, and adjacent spliced columns enclose a second casting cavity; therefore, after concrete is poured in the first casting cavity and the second casting cavity, the concrete in the first casting cavity forms a concrete beam, and the concrete in the second casting cavity forms a concrete column. The concrete beam can connect the spliced beams in adjacent module units, and the concrete column can connect the spliced columns in adjacent module units, so that the module units can be stably connected to each other, so that adjacent module units can be synergistically stressed. Moreover, since the perforated sleeves are located at the connection point between the first casting cavity and the second casting cavity, the perforated sleeves can connect the concrete columns and concrete beams to improve the connection strength between the module units, thereby improving the seismic performance of the connection nodes of adjacent module units.

[0008] In some embodiments, the perforated sleeve includes a main body and a support portion, the support portion is located on the outer peripheral side of the main body, and the support portion is overlapped on the spliced beam, a cavity is provided in the main body, and a first through hole connecting the cavity and the first casting cavity is provided on the main body, and a second through hole connecting the cavity and the second casting cavity is provided on the main body.

[0009] In some embodiments, the modular prefabricated concrete structure system further comprises a steel cage.

[0010] The steel cage is placed in the first casting cavity and passes through the first through hole;

[0011] And / or, the steel cage is placed in the second casting cavity and passes through the second through hole.

[0012] In some embodiments, an end of the rebar cage is located within the cavity.

[0013] In some embodiments, the square frame includes an even number of spliced beams, half of which are connected end to end to form an upper beam assembly, and the other half of which are connected end to end to form a lower beam assembly, one end of the spliced column is connected to two adjacent spliced beams in the upper beam assembly, and the other end of the spliced column is connected to two adjacent spliced beams in the lower beam assembly.

[0014] In some embodiments, the square frame further includes beam end steel and column end steel, the beam end steel being respectively connected to the two spliced beams connected end to end, and the column end steel being respectively connected to the ends of the spliced columns and the beam end steel.

[0015] In some embodiments, the module unit further includes a maintenance wall embedded between the upper beam assembly, the lower beam assembly and the splicing column.

[0016] In some embodiments, a casting groove is provided on the maintenance wall, the length direction of the casting groove is parallel to the length direction of the splicing column, and a casting hole connected to the casting groove is opened on the splicing beam.

[0017] In some embodiments, a detection groove is further provided on the maintenance wall, the length direction of the detection groove is parallel to the length direction of the splicing column, and a detection hole connected to the detection groove is opened on the splicing beam, and the width of the detection groove is smaller than the width of the casting groove.

[0018] The technical solution adopted in the second embodiment of the present application is: a method for constructing a modular prefabricated concrete structure system, comprising the following steps:

[0019] Splicing the two module units, wherein the adjacent splicing beams in the two module units enclose a first receiving slot, and the adjacent splicing columns in the two module units enclose a second receiving slot;

[0020] placing a steel cage in the first accommodating groove and the second accommodating groove;

[0021] blocking the first receiving groove to form the first casting cavity;

[0022] Blocking the notch of the second receiving groove to form the second casting cavity;

[0023] placing the perforated sleeve at the connection point between the first casting cavity and the second casting cavity;

[0024] Concrete is poured into the first pouring cavity and the second pouring cavity to form the modular prefabricated concrete structure system.

[0025] The construction method of the modular prefabricated concrete structure system provided by the present application has the following beneficial effects: by placing a steel cage, the connection strength between the modular units can be improved after pouring, and the steel cage is placed before the first and second receiving slots are sealed, which facilitates the hoisting of the steel cage and reduces collisions between the steel cage and the modular units, thereby reducing damage to the connection relationship between adjacent modular units. By combining steel structure and concrete, multiple modular units are spliced together to form a modular prefabricated concrete structure system, and perforated sleeves are placed between adjacent modular units to connect the perforated sleeves to the concrete after pouring, thereby improving the connection strength between the modular units and further improving the seismic performance of the connection nodes of adjacent modular units. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a schematic structural diagram of a modular prefabricated concrete structure system in one embodiment of the present application;

[0028] Figure 2 yes Figure 1 A partial enlarged view of part A shown;

[0029] Figure 3 yes Figure 1 Schematic diagram of the modular prefabricated concrete structure system after removing the perforated casing;

[0030] Figure 4 yes Figure 3 A partial enlarged view of part B is shown;

[0031] Figure 5 yes Figure 1 A schematic structural diagram of a modular unit in a modular prefabricated concrete structure system is shown;

[0032] Figure 6 yes Figure 5 A partial enlarged view of part C is shown;

[0033] Figure 7 yes Figure 5 Structural diagram of beam end steel in FIG;

[0034] Figure 8 yes Figure 5 Schematic diagram of the structure of the column end steel;

[0035] Figure 9 It is a structural schematic diagram of a modular prefabricated concrete structure system in one of the embodiments of the present application.

[0036] Reference numerals:

[0037] 1. Opening sleeve; 11. Main body; 111. First through hole; 112. Second through hole; 12. Support part; 2. Module unit; 21. Spliced beam; 211. First casting cavity; 212. Casting hole; 22. Spliced column; 221. Second casting cavity; 23. Beam end steel; 231. First connection part; 232. Second connection part; 24. Column end steel; 25. Maintenance wall; 251. Casting groove; 252. Inspection groove; 26. Truss reinforcement or studs. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0039] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0041] References to "one embodiment," "some embodiments," or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present invention. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0042] Prefabricated construction is a powerful path to achieving building industrialization, boasting high-quality components, significantly reduced labor costs, and a short construction period. Compared to traditional prefabricated construction, modular prefabricated buildings offer faster construction, higher building integration, reduced on-site labor requirements, and greater energy efficiency and emission reduction. In a typical modular building, the architecture, structure, finishes, and equipment are all completed in the factory. Through integrated transportation and on-site hoisting and assembly, the goal of "building a house like building a car" is achieved. This construction method significantly reduces material waste and transportation energy consumption. Unlike traditional cast-in-place or prefabricated construction methods, factory prefabrication allows for the effective optimization of building materials and dimensions, controlling the quality of each module unit.

[0043] Currently, modular prefabricated concrete structures often use a combination of steel and concrete, with post-cast concrete wet joints often used to connect adjacent modules. However, this connection method can lead to insufficient seismic resistance in the joints.

[0044] In view of the above problems, an embodiment of the present application provides a modular prefabricated concrete structure system and a construction method thereof. The modular prefabricated concrete structure system has excellent seismic performance.

[0045] In order to illustrate the technical solution of the present application, the following description is given with reference to specific drawings and embodiments.

[0046] Please refer to Figure 1 and Figure 2 , an embodiment of the present application provides a modular prefabricated concrete structure system, including: a perforated sleeve 1 and a module unit 2.

[0047] The module unit 2 includes a square frame formed by splicing multiple splicing beams 21 and multiple splicing columns 22; wherein, there are multiple module units 2, multiple module units 2 are distributed around the perforated sleeve 1, and multiple module units 2 are spliced in sequence, adjacent splicing beams 21 enclose a first pouring cavity 211, adjacent splicing columns 22 enclose a second pouring cavity 221, the perforated sleeve 1 is located at the connecting point of the first pouring cavity 211 and the second pouring cavity 221, and the first pouring cavity 211 and the second pouring cavity 221 are both used for pouring concrete.

[0048] In the modular prefabricated concrete structure system provided by the present application, since multiple modular units 2 are distributed around the perforated sleeve 1 and multiple modular units 2 are spliced in sequence, adjacent spliced beams 21 enclose a first casting cavity 211, and adjacent spliced columns 22 enclose a second casting cavity 221. Therefore, after concrete is poured into the first casting cavity 211 and the second casting cavity 221, the concrete in the first casting cavity 211 forms a concrete beam, and the concrete in the second casting cavity 221 forms a concrete column. The concrete beam can connect the spliced beams 21 in adjacent modular units 2, and the concrete column can connect the spliced columns 22 in adjacent modular units 2, so that the modular units 2 can be stably connected to each other, so that adjacent modular units 2 can be subjected to coordinated forces. Moreover, since the perforated sleeve 1 is located at the connection point between the first casting cavity 211 and the second casting cavity 221, the perforated sleeve 1 can connect the concrete columns and concrete beams to improve the connection strength between the modular units 2, thereby improving the seismic performance of the connection nodes of adjacent modular units 2.

[0049] Optionally, the spliced beams 21 and the spliced columns 22 may be L-shaped steel structures.

[0050] It should be noted that the L-shaped steel structure refers to a steel structure with an L-shaped cross-section, that is, the steel structure includes a first steel plate and a second steel plate, the first steel plate and the second steel plate are both steel plates with square cross-sections, the width ends of the first steel plate and the second steel plate are connected to each other, and the angle between the first steel plate and the second steel plate is 90 degrees to form a steel structure with an L-shaped cross-section.

[0051] Optionally, the spliced beams 21 and the spliced columns 22 may be C-shaped steel structures.

[0052] It should be noted that the L-shaped steel structure refers to a steel structure with a C-shaped (i.e., semicircular) cross-section, that is, the steel structure includes a first steel plate and a second steel plate, both of which are steel plates with a cross-section of one-eighth of a circular arc, and the width ends of the first steel plate and the second steel plate are connected to each other to form a steel structure with a C-shaped cross-section.

[0053] When multiple spliced beams 21 and multiple spliced columns 22 are spliced together to form a square frame, the first steel plates of the spliced beams 21 and the spliced columns 22 are used to connect to each other to form the square frame, and the second steel plates extend to the outside of the square frame, and the second steel plates are used to splice together to form the first casting cavity 211 and the second casting cavity 221.

[0054] When the spliced beam 21 and the spliced column 22 are L-shaped steel structures, please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The four module units 2 are arranged in two rows and two columns and spliced together. The splicing beams 21 in two adjacent module units 2 (the second steel plates in two adjacent splicing beams 21) are spliced and enclosed to form a U-shaped first casting cavity 211. The splicing beams 21 in the four module units 2 cooperate with each other to form four U-shaped first casting cavities 211, and the four first casting cavities 211 are distributed around the perforated sleeve 1, and the adjacent first casting cavities 211 are spaced 90 degrees apart; the splicing columns 22 in four adjacent module units 2 (the second steel plates in four adjacent splicing columns 22) are spliced and enclosed to form a rectangular second casting cavity 221, and the rectangular second casting cavity 221 is located between the four first casting cavities 211; the rectangular second casting cavity 221 is connected to the four U-shaped first casting cavities 211.

[0055] When pouring concrete, start pouring concrete from the second pouring cavity 221 or from one of the first pouring cavities 211 , and stop pouring when the concrete completely fills the first pouring cavity 211 and the second pouring cavity 221 . After the concrete dries, concrete beams and concrete columns are formed.

[0056] The concrete beam and the two spliced beams 21 are combined to form a new beam, the concrete column and the four spliced columns 22 are combined to form a new column, and the new column and the new beam are connected at the perforated sleeve 1 to form a connection node between the four module units 2.

[0057] By providing the perforated sleeve 1, the connection strength between the new column and the new beam can be enhanced, thereby enhancing the seismic performance of the connection node.

[0058] It should be noted that the splicing columns 22 in two adjacent module units 2 located at the edge (the second steel plates in the two adjacent splicing columns 22 ) are spliced and enclosed to form a U-shaped second casting cavity 221 .

[0059] Before pouring concrete, support plates are placed around the outer periphery of the four module units 2, and the support plates and the U-shaped second pouring cavity 221 are combined to form a rectangular cavity. After pouring concrete, the concrete is combined with the two splicing columns 22 to form a new column.

[0060] It should be noted that the number of module units 2 can be increased according to demand. Figure 1 The arrangement shown is a bottom structure of X rows and Y columns, and a perforated sleeve 1 is placed between the four connected module units 2, where X and Y are both integers greater than 1.

[0061] Please refer to Figure 9 It should be noted that you can also follow Figure 1 The arrangement shown here stacks modular units 2 on a base structure to form an upper structure. The U-shaped first casting cavity 211 in the upper structure and the U-shaped first casting cavity 211 in the lower structure are positioned opposite and communicate with each other. The second casting cavity 221 in the upper structure communicates with the second casting cavity 221 in the lower structure. The perforated sleeve 1 is placed at the connection between the first casting cavity 211 and the second casting cavity 221 in the upper and lower structures.

[0062] Through the above arrangement, after pouring concrete, the concrete beams and concrete columns in the upper structure can be connected to the concrete beams and concrete columns in the lower structure at the perforated sleeve 1, thereby improving the seismic performance of the nodes of the upper structure and the lower structure.

[0063] It should be noted that the module units 2 can be stacked to form a multi-layer structure according to the needs, and the module units 2 in each layer of the structure are arranged according to the Figure 1 The adjacent two-layer structures are arranged in the manner described above; Figure 9 Arrange in the arrangement shown.

[0064] Please refer to Figure 2In some embodiments, the perforated sleeve 1 includes a main body 11 and a support portion 12. The support portion 12 is located on the outer peripheral side of the main body 11 and is overlapped on the splicing beam 21. A cavity is provided in the main body 11, and a first through hole 111 is provided on the main body 11 to connect the cavity with the first casting cavity 211. A second through hole 112 is provided on the main body 11 to connect the cavity with the second casting cavity 221.

[0065] Because the support portion 12 is located on the outer periphery of the main body 11 and is overlapped on the splicing beam 21, the perforated sleeve 1 can be suspended and arranged at the connection point between the first casting cavity 211 and the second casting cavity 221. Furthermore, because the main body 11 has a cavity, and the main body 11 has a first through hole 111 connecting the cavity with the first casting cavity 211, and a second through hole 112 connecting the cavity with the second casting cavity 221, when pouring concrete, the concrete can flow into the cavity and then flow into the first casting cavity 211 and the second casting cavity 221 after passing through the cavity. This allows the concrete in the second casting cavity 221 to connect with the concrete in the multiple first casting cavities 211 within the main body 11.

[0066] Optionally, the support portion 12 may be welded to the splicing beam 21 .

[0067] Please refer to Figure 9 It should be noted that both ends of the main body 11 protrude from the support portion 12. When the support portion 12 is overlapped with the splicing beam 21, the two ends of the support portion 12 are respectively located in the first casting cavity 211 in the substructure and the first casting cavity 211 in the superstructure. This allows the perforated sleeve 1 to be located not only at the connection nodes between the multiple modular units 2 in the substructure, but also at the connection nodes between the multiple modular units 2 in the superstructure, so that the perforated sleeve 1 is located at the connection node between the substructure and the superstructure. This improves the connection strength between the superstructure and the substructure, thereby enhancing the seismic performance of the prefabricated building.

[0068] Please refer to Figure 2 and Figure 4 In some embodiments, the modular prefabricated concrete structure system further includes a steel cage (not shown in the figure), which is placed in the first casting cavity 211 and passes through the first through hole 111; and / or, the steel cage is placed in the second casting cavity 221 and passes through the second through hole 112.

[0069] By providing a steel cage and placing the steel cage in the first casting cavity 211 and / or the second casting cavity 221, the strength of the concrete beam and / or concrete column can be improved; and since the steel cage passes through the first through hole 111 and / or the second through hole 112, the connection strength between the concrete beam and / or concrete column and the perforated sleeve 1 can be improved; thereby, the connection strength between the multiple module units 2 can be improved, thereby enhancing the seismic performance of the prefabricated building.

[0070] Please refer to Figure 2 and Figure 4 Specifically, steel cages are placed in both the first pouring cavity 211 and the second pouring cavity 221 .

[0071] It should be noted that concrete beams and columns have high compressive strength but very low tensile strength. The steel cage mainly plays a tensile role, constraining the concrete beams and columns to enable them to withstand a certain amount of axial tension.

[0072] Please refer to Figure 2 and Figure 4 In some embodiments, the ends of the rebar cage are located within the cavity.

[0073] Through the above arrangement, the connection strength between the concrete beam and / or concrete column and the perforated sleeve 1 can be improved, so the connection strength between the module units 2 can be improved, thereby enhancing the seismic performance of the prefabricated building.

[0074] In some embodiments, truss bars or studs 26 are pre-embedded in the spliced beams 21 and the spliced columns 22. The ends of the truss bars and studs are located in the cavity.

[0075] Please refer to Figure 5 In some embodiments, the square frame includes an even number of spliced beams 21, half of the spliced beams 21 are connected end to end to form an upper beam assembly, and the other half of the spliced beams 21 are connected end to end to form a lower beam assembly, one end of the spliced column 22 is connected to two adjacent spliced beams 21 in the upper beam assembly, and the other end of the spliced column 22 is connected to two adjacent spliced beams 21 in the lower beam assembly.

[0076] With the above arrangement, the spliced beams 21 and the spliced columns 22 form 12 sides of the square frame. The joints where the spliced columns 22 connect to two adjacent spliced beams 21 in the upper beam assembly, and where the spliced columns 22 connect to two adjacent spliced beams 21 in the lower beam assembly, form the corners of the square frame.

[0077] Please refer to Figure 5 、 Figure 6 Figure 7 and Figure 8In some embodiments, the square frame further includes a beam end steel section 23 and a column end steel section 24. The beam end steel section 23 is respectively connected to the two spliced beams 21 connected end to end, and the column end steel section 24 is respectively connected to the end of the spliced column 22 and the beam end steel section 23.

[0078] It should be noted that the beam end steel sections 23 are respectively connected to the ends of the first steel plates in the two spliced beams 21 connected end to end, and the column end steel sections 24 are respectively connected to the ends of the first steel plates in the spliced columns 22 and the beam end steel sections 23.

[0079] Please refer to Figure 6 and Figure 7 Specifically, the beam end steel section 23 includes a first connecting portion 231 and a second connecting portion 232 connected to each other, with the angle between the first connecting portion 231 and the second connecting portion 232 being 90 degrees. The first connecting portion 231 and the second connecting portion 232 are respectively connected to the first steel plates of the two spliced beams 21 connected end to end.

[0080] Optionally, the beam end steel 23 and the spliced beam 21 , the beam end steel 23 and the column end steel 24 , and the column end steel 24 and the beam end steel 23 can all be connected by welding.

[0081] Please refer to Figure 5 In some embodiments, the module unit 2 further includes a maintenance wall 25 , which is embedded between the upper beam assembly, the lower beam assembly, and the splicing column 22 .

[0082] Specifically, the maintenance wall 25 is respectively connected to a spliced beam 21 in the upper beam assembly, a spliced beam 21 in the lower beam assembly, and two spliced columns 22.

[0083] Optionally, the maintenance wall 25 may be connected to the splicing beam 21 and the splicing column 22 by welding.

[0084] Please refer to Figure 5 In some embodiments, a casting groove 251 is provided on the maintenance wall 25 , the length direction of the casting groove 251 is parallel to the length direction of the splicing column 22 , and a casting hole 212 connected to the casting groove 251 is opened on the splicing beam 21 .

[0085] By opening a casting hole 212 connected to the casting groove 251 on the splicing beam 21, when pouring concrete into the first pouring cavity 211 and the second pouring cavity 221, the concrete can flow into the casting groove 251; by pouring concrete into the casting groove 251, the maintenance wall 25 and the concrete can be combined to form the exterior wall or interior wall of the prefabricated building.

[0086] In some embodiments, before pouring concrete, support plates are placed around the outer periphery of the modular unit 2, covering the openings of the casting slots 251 on the outer maintenance wall 25. After pouring concrete, the outer maintenance wall 25 and the concrete combine to form the exterior wall of the prefabricated building.

[0087] In some embodiments, the maintenance walls 25 in two adjacent module units 2 are arranged opposite to each other, and the notches of the casting holes are opposite to each other. After pouring concrete, the concrete and the two opposite maintenance walls 25 are combined to form the inner wall of the prefabricated building.

[0088] In some embodiments, a detection groove 252 is also provided on the maintenance wall 25, the length direction of the detection groove 252 is parallel to the length direction of the splicing column 22, and a detection hole connected to the detection groove 252 is opened on the splicing beam 21, and the width of the detection groove 252 is smaller than the width of the casting groove 251.

[0089] By setting up a detection channel, it is convenient for construction workers to check whether the concrete pouring is sufficient.

[0090] It should be noted that the width of the detection groove 252 is relatively small, and during concrete pouring, the concrete will not flow through the detection channel. The detection groove 252, the first pouring cavity 211, and the pouring groove 251 form a communicating vessel. The height of the concrete in the detection groove 252 changes with the height of the concrete in the pouring groove 251. By detecting or observing the height of the concrete in the detection groove 252, it can be determined whether the concrete pouring is sufficient.

[0091] Please refer to Figure 5 In some embodiments, the module unit 2 further includes a top plate and a bottom plate, the top plate is embedded in the upper beam assembly, and the bottom plate is embedded in the lower beam assembly.

[0092] The technical solution adopted in the embodiment of the second aspect of the present application is: a construction method of a modular prefabricated concrete structure system includes the following steps.

[0093] S100: Splicing two module units 2, the adjacent splicing beams 21 in the two module units 2 enclose a first receiving groove, and the adjacent splicing columns 22 in the two module units 2 enclose a second receiving groove.

[0094] It should be noted that before assembling the module unit 2, the spliced beams 21 and the spliced columns 22 need to be assembled to form the module unit 2. The spliced beams 21 and the spliced columns 22 are spliced by beam end steel sections 23 and column end steel sections 24.

[0095] Please refer to Figure 5 and Figure 6Specifically, the beam end steel sections 23 are respectively connected to the two spliced beams 21 connected end to end, and the column end steel sections 24 are respectively connected to the ends of the spliced columns 22 and the beam end steel sections 23.

[0096] Optionally, the beam end steel 23 and the spliced beam 21 , the beam end steel 23 and the column end steel 24 , and the column end steel 24 and the beam end steel 23 can all be connected by welding.

[0097] S200: placing a steel cage in the first receiving groove and the second receiving groove.

[0098] It should be noted that placing steel cages can enhance the tensile capacity of concrete columns and concrete beams.

[0099] S300: Blocking the first receiving groove to form a first casting cavity 211.

[0100] S400: The notch of the second receiving groove is blocked to form a second casting cavity 221 .

[0101] It should be noted that the module unit 2 is Figure 1 The arrangement shown can be arranged into a bottom structure of X rows and Y columns. A perforated sleeve 1 is placed between the four connected module units 2. Wherein, X and Y are both integers greater than 1.

[0102] In some embodiments, when X is 1 and Y is 1 (ie, the modular prefabricated concrete structure system includes only two module units 2 for assembly), a template needs to be used to seal the slots when sealing the first receiving slot and the second receiving slot.

[0103] In some embodiments, when X is 2 and Y is 2 (i.e., the modular prefabricated concrete structure system includes four modular units 2), after placing the steel cage in the second receiving groove, the remaining two modular units 2 are assembled to seal the notch of the second receiving groove and form the second casting cavity 221. The notch of the first receiving groove needs to be sealed with a formwork.

[0104] Please refer to Figure 9 In some embodiments, when the module units 2 are stacked in the height direction, after placing the steel cage in the first receiving groove, the remaining two module units 2 are stacked on the two lower module units 2 to block the notch of the first receiving groove and form a first casting cavity 211.

[0105] S500 : placing the perforated sleeve 1 at the connection point between the first casting cavity 211 and the second casting cavity 221 .

[0106] It should be noted that the perforated sleeve 1 includes a main body 11 and a support portion 12. The support portion 12 is located on the outer periphery of the main body 11 and is welded to the splicing beam 21, so that the main body 11 is suspended at the connection point between the first casting cavity 211 and the second casting cavity 221. The main body 11 has a cavity defined therein and is provided with a first through hole 111 connecting the cavity with the first casting cavity 211. The main body 11 also has a second through hole 112 connecting the cavity with the second casting cavity 221.

[0107] Specifically, the ends of the steel cage are passed through the first through hole 111 and / or the second through hole 112 and are located in the cavity of the main body 11 to enhance the connection strength between the concrete column and the concrete beam and the perforated sleeve 1 .

[0108] S600: pouring concrete into the first pouring cavity 211 and the second pouring cavity 221 to form a modular prefabricated concrete structure system.

[0109] After pouring concrete in the first pouring cavity 211 and the second pouring cavity 221, the concrete in the first pouring cavity 211 forms a concrete beam, and the concrete in the second pouring cavity 221 forms a concrete column. The concrete beam can be connected to the splicing beams 21 in the adjacent module units 2, and the concrete column can be connected to the splicing columns 22 in the adjacent module units 2, so that the module units 2 can be stably connected to each other, so that the adjacent module units 2 can be subjected to force synergistically.

[0110] It should be noted that before pouring, support plates can be arranged around the outer periphery of the module unit 2 so that after pouring, the splicing columns 22 in two adjacent module units 2 located at the edge can be combined with concrete to form a new column.

[0111] The construction method of the modular prefabricated concrete structure system provided in the present application can improve the connection strength between the module units 2 after pouring by placing a steel cage. The steel cage is placed before the first and second receiving slots are sealed, which facilitates the hoisting of the steel cage and reduces the collision between the steel cage and the module units 2, thereby reducing the damage to the connection relationship between adjacent module units 2. By combining steel structure and concrete, multiple module units 2 are spliced together to form an assembled building, and perforated sleeves 1 are placed between adjacent module units 2 to connect the perforated sleeves 1 to the concrete after pouring, thereby improving the connection strength between the module units 2 and further improving the seismic performance of the connection nodes of adjacent module units 2.

[0112] Please refer to Figure 9 ,It should be explained that a multi-layer modular prefabricated concrete structure system can be constructed according to ,building needs.

[0113] Specifically, a two-layer modular prefabricated concrete structure system is taken as an example, and each layer includes four module units 2 (a total of eight module units 2, namely the first module unit, the second module unit, the third module unit, the fourth module unit, the fifth module unit, the sixth module unit, the seventh module unit and the eighth module unit) to describe the construction method of the modular prefabricated concrete structure system of an embodiment of the present application.

[0114] First, the first module unit and the second module unit are spliced together, and the adjacent splicing beams 21 of the first module unit and the second module unit are spliced to form a first casting trough, and the adjacent splicing columns 22 of the first module unit and the second module unit are spliced to form a second casting trough.

[0115] Then, a steel cage is placed in the second casting trough, and then the third module unit is spliced with the first module unit, and the fourth module unit is spliced with the second module unit and the third module unit to block the notch of the second casting trough and form a casting cavity.

[0116] The splicing beams 21 adjacent to the third module unit and the first module unit are spliced to form a third casting trough, the splicing beams 21 adjacent to the second module unit and the fourth module unit are spliced to form a fourth casting trough, and the splicing beams 21 adjacent to the third module unit and the fourth module unit are spliced to form a fifth casting trough.

[0117] Afterwards, an open-hole sleeve 1 is placed on the first module unit, the second module unit, the third module unit and the fourth module unit, and the ends of the steel cage are accommodated in the cavity.

[0118] Next, four steel cages are placed in the first casting trough, the third casting trough, the fourth casting trough and the fifth casting trough respectively, and the ends of the three steel cages are all accommodated in the cavity.

[0119] Then, the fifth modular unit is placed on top of the first modular unit, and the sixth modular unit is placed on top of the second modular unit. The fifth and sixth modular units are spliced together to block the first casting trough and form a casting cavity. Simultaneously, the adjacent splicing columns 22 of the fifth and sixth modular units are spliced together to form a sixth casting trough, and a steel cage is placed in the sixth casting trough.

[0120] Afterwards, the seventh module unit is placed above the third module unit, the eighth module unit is placed above the fourth module unit, and the seventh module unit and the eighth module unit are spliced to block the sixth casting trough to form a casting cavity.

[0121] The seventh module unit and the fifth module unit cooperate to block the third casting trough to form a casting cavity; the seventh module and the eighth module unit cooperate to block the fifth casting trough to form a casting cavity; the eighth module and the sixth module unit cooperate to block the fourth casting trough to form a casting cavity.

[0122] Finally, concrete is poured into all the pouring cavities to form a modular prefabricated concrete structure system.

[0123] The substructure of the structure is assembled according to the above method, and then the substructure is assembled according to the above method. Figure 9 The stacking method shown is to stack the module units 2 and the perforated sleeves 1, and pour concrete to form a second layer of modular prefabricated concrete structure system on the above-mentioned bottom structure; repeating the above steps can build a multi-layer modular prefabricated concrete structure system.

[0124] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A modular prefabricated concrete structure system, characterized in that: include: The perforated sleeve comprises a main body and a support portion, wherein the support portion is located on the outer periphery of the main body; The modular unit comprises a square frame formed by splicing a plurality of spliced beams and a plurality of spliced columns; wherein, There are a plurality of said module units, and the plurality of said module units are distributed around the perforated sleeve, and the plurality of said module units are spliced in sequence, and the adjacent spliced beams enclose a first casting cavity in the shape of a U-shaped groove, and the adjacent spliced columns enclose a second casting cavity, and the perforated sleeve is located at the connection point between the first casting cavity and the second casting cavity, and the first casting cavity and the second casting cavity are both used for casting concrete, and the support part is overlapped on the spliced beam, and a cavity is provided in the main body, and a first through hole connecting the cavity and the first casting cavity is opened on the main body, and a second through hole connecting the cavity and the second casting cavity is opened on the main body; wherein, Some of the modular units are arranged in X rows and Y columns to form a base structure; the modular units are stacked on the base structure in X rows and Y columns to form a superstructure; the notches of the U-shaped first casting cavity in the superstructure and the U-shaped first casting cavity in the base structure are arranged opposite to each other and communicate with each other; the second casting cavity in the superstructure is communicated with the second casting cavity in the base structure; the perforated sleeve is placed at the connection between the first casting cavity and the second casting cavity in the superstructure and the base structure; X and Y are both integers greater than 1.

2. The modular prefabricated concrete structure system according to claim 1, characterized in that: The modular prefabricated concrete structure system further includes a steel cage; The steel cage is placed in the first casting cavity and passes through the first through hole; And / or, the steel cage is placed in the second casting cavity and passes through the second through hole.

3. The modular prefabricated concrete structure system according to claim 2, characterized in that: The ends of the steel cage are located in the cavity.

4. The modular prefabricated concrete structure system according to claim 1, characterized in that: The square frame includes an even number of spliced beams, half of which are connected end to end to form an upper beam assembly, and the other half of which are connected end to end to form a lower beam assembly, one end of the spliced column is connected to two adjacent spliced beams in the upper beam assembly, and the other end of the spliced column is connected to two adjacent spliced beams in the lower beam assembly.

5. The modular prefabricated concrete structure system according to claim 4, characterized in that: The square frame further comprises beam end section steel and column end section steel, wherein the beam end section steel is respectively connected to the two spliced beams connected end to end, and the column end section steel is respectively connected to the end of the spliced column and the beam end section steel.

6. The modular prefabricated concrete structure system according to claim 4, characterized in that: The module unit further includes a maintenance wall embedded between the upper beam assembly, the lower beam assembly and the splicing column.

7. The modular prefabricated concrete structure system according to claim 6, characterized in that: A casting through groove is provided on the maintenance wall, the length direction of the casting through groove is parallel to the length direction of the splicing column, and a casting hole communicating with the casting through groove is opened on the splicing beam.

8. The modular prefabricated concrete structure system according to claim 7, characterized in that: The maintenance wall is also provided with a detection groove, the length direction of the detection groove is parallel to the length direction of the splicing column, and a detection hole connected to the detection groove is opened on the splicing beam, and the width of the detection groove is smaller than the width of the casting groove.

9. A method for constructing a modular prefabricated concrete structure system according to any one of claims 2 to 8, characterized in that: The following steps are involved: Splicing the two module units, wherein the adjacent splicing beams in the two module units enclose a first receiving slot, and the adjacent splicing columns in the two module units enclose a second receiving slot; placing a steel cage in the first accommodating groove and the second accommodating groove; blocking the first receiving groove to form the first casting cavity; Blocking the notch of the second receiving groove to form the second casting cavity; placing the perforated sleeve at the connection point between the first casting cavity and the second casting cavity; Concrete is poured into the first pouring cavity and the second pouring cavity to form the modular prefabricated concrete structure system.

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