Concrete modular building adopting dry-type damping nodes and construction method of concrete modular building

Abstract

The invention relates to a concrete modular building adopting dry-type damping nodes and a construction method of the concrete modular building, belongs to the technical field of modular buildings, and solves the problems that in the prior art, a concrete modular structure is low in assembly efficiency, and a concrete modular unit is heavy. The system comprises at least two layers of concrete modules, and each concrete module comprises a first concrete module unit, a second concrete module unit, a third concrete module unit and a damping node; the second concrete module units are arranged between the first concrete module units and the third concrete module units, and / or the second concrete module units are arranged between the two first concrete module units; a single wallboard is arranged between the first concrete module unit and the second concrete module unit, no wallboard is arranged between the second concrete module unit and the third concrete module unit, and the upper-layer concrete module and the lower-layer concrete module are connected through damping nodes. The concrete module is light in unit and high in assembly efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of concrete module buildings, and in particular to a concrete modular building using dry shock-absorbing nodes and a construction method thereof. Background Art

[0002] Modular building is a highly integrated, green, low-carbon, and high-assembly-rate building. Compared with conventional buildings, modular buildings have a shorter overall construction period, better factory construction quality, and a more environmentally friendly low-carbon construction process. It is a more thoroughly industrialized building system.

[0003] Steel structure modular buildings have the advantages of convenient connection and fast construction, but they have the disadvantages of large steel consumption and high structural cost. Concrete modular buildings have been demonstrated in some applications in high-rise buildings and old house renovation in my country due to their relatively low cost and good comfort.

[0004] However, the connection problem of concrete module units has not been well solved. The connection between concrete modules is usually done by wet method, that is, the connection between concrete modules is realized by pouring concrete on site after tying the steel bars, which affects the assembly efficiency. The pouring concrete method not only increases the construction period, but also the cast-in-place concrete easily pollutes the completed decoration. At the same time, the concrete module uses a large amount of materials, has a bulky structure, and the overall weight of the module is heavy, which is not convenient for transportation and hoisting. Summary of the invention

[0005] In view of the above analysis, an embodiment of the present invention aims to provide a concrete modular building using dry shock-absorbing nodes and a construction method thereof, so as to solve the problems of low assembly efficiency of existing concrete modular structures and bulky concrete module units.

[0006] In one aspect, the present invention provides a concrete modular building using a dry type shock absorbing node, comprising at least two layers of concrete modules, wherein the concrete modules include a first concrete module unit, a second concrete module unit, a third concrete module unit and a shock absorbing node;

[0007] The second concrete module unit is disposed between the first concrete module unit and the third concrete module unit, and / or the second concrete module unit is disposed between two of the first concrete module units;

[0008] There is a single wall panel between the first concrete module unit and the second concrete module unit, there is no wall panel between the second concrete module unit and the third concrete module unit, and the upper concrete module and the lower concrete module are connected through the shock absorbing node.

[0009] Furthermore, the first concrete module unit includes a first corner concrete module unit, a second corner concrete module unit and a first middle concrete module unit, and the first middle concrete module unit is arranged between the first corner concrete module unit and the second corner concrete module unit.

[0010] Furthermore, the first concrete module unit, the second concrete module unit and the third concrete module unit are each provided with a steel mesh.

[0011] Furthermore, the joints between the first middle concrete module unit and the first corner concrete module unit and the second corner concrete module unit are all single wall panels.

[0012] Furthermore, the second concrete module unit includes a first side concrete module unit and a second middle concrete module unit, the second middle concrete module unit is arranged between the two first side concrete module units, and the joint between the first side concrete module unit and the second middle concrete module unit forms a composite wall panel.

[0013] Furthermore, the third concrete module unit includes a third corner concrete module unit, a third middle concrete module unit and a fourth corner concrete module unit, the third middle concrete module unit is arranged between the third corner concrete module unit and the fourth corner concrete module unit, and the joints of the third middle concrete module unit, the third corner concrete module unit and the fourth corner concrete module unit form a single wall panel.

[0014] Furthermore, the first corner concrete module unit includes a first concrete bottom plate, a plurality of first horizontal grooves are provided at the bottom of the first concrete bottom plate, and first horizontal protrusions are formed between adjacent first horizontal grooves.

[0015] Furthermore, the first corner concrete module unit also includes a first concrete top plate, and a plurality of second horizontal grooves are provided on the top of the first concrete top plate, and second horizontal protrusions are formed between adjacent second horizontal grooves.

[0016] Furthermore, the first horizontal groove of the upper layer is connected to the second horizontal protrusion of the lower layer, and the first horizontal protrusion of the upper layer is connected to the second horizontal groove of the lower layer.

[0017] On the other hand, the present invention provides a construction method of a concrete modular building, which is used for the construction of the above-mentioned concrete modular building using dry shock-absorbing nodes.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] (1) The concrete module wall panels of the present invention, which serve as the external load-bearing walls, are provided with holes, and the concrete wall panels, which serve as the internal load-bearing walls, are provided with vertical ribs. The vertical ribs of the internal load-bearing walls are spliced ​​together through the grooves between the vertical ribs to form a single-layer concrete module wall panel. This can reduce the weight of the concrete module unit, reduce the difficulty of transportation and hoisting, and reduce the thickness of the wall panel after splicing. At the same time, a steel mesh with a three-dimensional load-bearing skeleton is provided in the concrete module wall panel, the bottom plate and the top plate, which can improve the integrity of the concrete module and its seismic performance.

[0020] (2) The shock-absorbing node of the present invention includes an upper connection box and a lower connection box. The upper connection box is connected to the lower end of the concrete module wall panel, and the lower connection box is connected to the upper end of the concrete module wall panel. By plugging the upper connection box and the lower connection box, the upper concrete module unit and the lower concrete module unit can be quickly connected, thereby avoiding a large amount of wet work on site, saving energy and protecting the environment, and having high on-site installation efficiency.

[0021] (3) The shock absorbing node of the present invention can not only adapt to errors, but also dissipate energy and reduce shock. Through the deformation coordination of the four groups of elastic connectors and the double-sided tapered holes (or ball sockets) of the snap connectors, the snap connectors can rotate around the fixed axis. When there is a horizontal error in the upper and lower concrete module units, the left and right snap connectors can be snap-connected with the cylindrical T-shaped fixings in the lower connection box through rotations of different amplitudes, thereby solving the problem of difficult installation alignment when there is an error in on-site positioning. When the structure resists horizontal forces, the upper and lower connection boxes will produce relative horizontal displacement, and the cylindrical T-shaped fixings of the lower connection box will squeeze the snap connector on one side of the upper connection box and transfer it to the two parallel groups of elastic parts. The axial expansion and contraction deformation of the elastic parts consumes part of the seismic energy, reduces the seismic energy acting on the concrete module units, and achieves the purpose of energy dissipation and shock reduction.

[0022] In the present invention, the above-mentioned technical solutions can also be combined with each other, or applied to steel structure module buildings to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0024] Figure 1 A schematic diagram of the structure of a concrete modular building arranged in a nine-square grid according to a specific embodiment;

[0025] Figure 2 It is a structural schematic diagram of a first corner concrete module unit with a shock-absorbing node in a specific embodiment;

[0026] Figure 3 It is a schematic diagram of the explosion structure of the first corner concrete module unit with a shock absorbing node in a specific embodiment;

[0027] Figure 4 is a schematic structural diagram of a first concrete wall panel in a specific embodiment;

[0028] Figure 5 is a schematic structural diagram of a third concrete wall panel of a specific embodiment;

[0029] Figure 6 is a schematic structural diagram of a second concrete wall panel in a specific embodiment;

[0030] Figure 7 is a schematic structural diagram of a fourth concrete wall panel in a specific embodiment;

[0031] Figure 8 A schematic diagram of the connection structure of the first concrete bottom plate and the first concrete top plate of a specific embodiment;

[0032] Fig. 9 It is a structural schematic diagram of a first side concrete module unit with a shock absorbing node in a specific embodiment;

[0033] Fig.10 A schematic diagram of the connection structure of the second concrete bottom plate and the second concrete top plate in a specific embodiment;

[0034] Fig.11 It is a structural schematic diagram of the third corner concrete module unit with a shock absorbing node in a specific embodiment;

[0035] Fig.12 A schematic diagram of the connection structure of the third concrete bottom plate and the third concrete top plate of a specific embodiment;

[0036] Fig.13 is a structural schematic diagram of a shock absorbing node in a specific embodiment;

[0037] Fig.14 It is a structural schematic diagram of a specific embodiment of a damping node in an unconnected state;

[0038] Fig.15 It is a schematic diagram of the damping node connection process in the error-free state of a specific embodiment;

[0039] Fig.16 It is a schematic diagram of the damping node connection process in the error state of a specific embodiment;

[0040] Fig.17It is a structural schematic diagram of a fixed shaft in a specific embodiment;

[0041] Fig.18 is a schematic structural diagram of a first elastic member in a specific embodiment;

[0042] Fig.19 It is a schematic structural diagram of a steel mesh according to a specific embodiment.

[0043] Reference numerals:

[0044] 1-first concrete module unit; 11-first corner concrete module unit; 111-first concrete bottom plate; 1111-first horizontal groove; 1112-first horizontal protrusion; 112-first concrete top plate; 1121-second horizontal groove; 1122-second horizontal protrusion; 113-first concrete wall plate; 1131-first hole; 1132-window hole; 114-second concrete wall plate; 1141-first vertical rib; 1142-first vertical groove; 1143-door hole; 115-third concrete wall plate; 1151-second hole; 116-fourth concrete wall plate; 1161-second vertical rib; 1162-second vertical groove; 12-second corner concrete module unit; 13-first middle concrete module unit;

[0045] 2-second concrete module unit; 21-first side concrete module unit; 211-second concrete bottom plate; 2111-third horizontal groove; 2112-third horizontal protrusion; 212-second concrete top plate; 2121-fourth horizontal groove; 2122-fourth horizontal protrusion; 213-fifth concrete wall plate; 2131-third hole; 214-sixth concrete wall plate; 2141-third vertical rib; 2142-third vertical groove; 215-first steel frame; 216-second steel frame; 22-second middle concrete module unit;

[0046] 3-third concrete module unit; 31-third corner concrete module unit; 311-third steel frame; 312-seventh concrete wall panel; 3121-fourth hole; 313-eighth concrete wall panel; 3131-fifth hole; 314-ninth concrete wall panel; 3141-fourth vertical rib; 3142-fourth vertical groove; 315-third concrete bottom plate; 3151-fifth horizontal groove; 3152-fifth horizontal protrusion; 316-third concrete top plate; 3161-sixth horizontal groove; 3162-sixth horizontal protrusion; 32-third middle concrete module unit; 33-fourth corner concrete module unit;

[0047] 4- shock absorbing node; 41- upper connecting box; 411- first box body; 4111- fixing plate; 412- fixing shaft; 4121- sphere; 413- first elastic member; 4131- end plate; 4132- spring; 414- second elastic member; 415- snap connector; 4151- hook; 42- lower connecting box; 421- second box body; 4211- slot; 422- cylindrical T-shaped fixing member; 5- steel mesh; 51- frame; 52- steel bar. DETAILED DESCRIPTION

[0048] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0049] Example 1

[0050] A specific embodiment of the present invention, as Figure 1 and Fig.13 As shown, a concrete module building using dry damping nodes is disclosed, at least two layers of concrete modules, the concrete modules include a first concrete module unit 1, a second concrete module unit 2, a third concrete module unit 3 and a damping node 4, the second concrete module unit 2 is arranged between the first concrete module unit 1 and the third concrete module unit 3 to form a layer of concrete modules, there is a single wall panel between the first concrete module unit 1 and the second concrete module unit 2, and there is no wall panel between the second concrete module unit 2 and the third concrete module unit 3; the second concrete module unit 2 is arranged between two first concrete module units 1 to form a layer of concrete modules. The upper concrete module is connected to the lower concrete module through the damping node 4.

[0051] Compared with the prior art, the concrete module building using dry shock-absorbing nodes provided in this embodiment forms a single wall panel after adjacent concrete module units are spliced ​​together, which can reduce the weight of the concrete modular building, that is, reduce the weight of a single concrete module unit. At the same time, the upper concrete module and the lower concrete module are quickly connected through the shock-absorbing node 4, without the need for on-site steel bar tying operations or on-site cast-in-place concrete, thereby improving on-site assembly efficiency.

[0052] According to the different number of rows and positions of the first concrete module units 1, the structure of the first concrete module units 1 is different. Specifically, Figure 1As shown, the first concrete module unit 1 includes a first corner concrete module unit 11, a second corner concrete module unit 12 and a first middle concrete module unit 13. The first middle concrete module unit 13 is arranged between the first corner concrete module unit 11 and the second corner concrete module unit 12. The joints between the first middle concrete module unit 13 and the first corner concrete module unit 11 and the second corner concrete module unit 12 form a single wall structure.

[0053] Specifically, Figure 2 and Figure 3 As shown, the first corner concrete module unit 11 includes a first concrete bottom plate 111, a first concrete top plate 112 and four concrete walls, the four concrete walls are specifically a first concrete wall plate 113, a second concrete wall plate 114, a third concrete wall plate 115 and a fourth concrete wall plate 116, the first concrete wall plate 113 and the second concrete wall plate 114 are arranged in parallel, the third concrete wall plate 115 and the fourth concrete wall plate 116 are arranged in parallel, the first concrete wall plate 113, the second concrete wall plate 114, the third concrete wall plate 115 and the fourth concrete wall plate 116 are arranged to form a rectangular cylindrical structure, and the first concrete bottom plate 111 and the first concrete top plate 112 are arranged in parallel at the upper and lower ends of the rectangular cylindrical structure.

[0054] In order to reduce the weight of the first corner concrete module unit 11, as Figure 2 and Figure 3 As shown, the first concrete wall panel 113 and the third concrete wall panel 115 are both perforated walls, which are used for bearing the exterior wall of the building. Figure 4 As shown, a first hole 1131 is provided along the height direction of the first concrete wall panel 113, and a plurality of first holes 1131 are provided at equal intervals along the length direction of the first concrete wall panel 113. Figure 6 As shown, the third concrete wall panel 115 is also provided with a second hole 1151, and a plurality of second holes 1151 are provided at equal intervals along the length direction of the third concrete wall panel 115. The first concrete wall panel 113 is also provided with a window hole 1132, which is not connected to the first hole 1131.

[0055] In this embodiment, holes (respectively the first hole 1131 and the second hole 1151) are evenly provided in the first concrete wall panel 113 and the third concrete wall panel 115 serving as the exterior walls. The first hole 1131 and the second hole 1151 can be filled with thermal insulation materials such as rock wool or polyurethane, thereby reducing the weight of the concrete module unit and the difficulty of transportation and lifting, while improving the thermal insulation performance of the exterior wall.

[0056] In order to improve the in-plane and out-plane lateral stiffness and bearing capacity of the wall, Figure 2 , Figure 3 and Figure 5 As shown, a first vertical rib 1141 is provided on the outer side of the second concrete wall panel 114. There are a plurality of first vertical ribs 1141, which are evenly arranged along the length direction of the second concrete wall panel 114. The first vertical ribs 1141 protrude from the outer side of the second concrete wall panel 114, and a first vertical groove 1142 is formed between adjacent first vertical ribs 1141. A door opening 1143 is also provided on the second concrete wall panel 114. Figure 7 As shown, a second vertical rib 1161 is provided on the outer side of the fourth concrete wall panel 116. There are multiple second vertical ribs 1161, and the multiple second vertical ribs 1161 are evenly arranged along the length direction of the fourth concrete wall panel 116. The second vertical ribs 1161 protrude from the outer side surface of the fourth concrete wall panel 116, and second vertical grooves 1162 are formed between adjacent second vertical ribs 1161.

[0057] In order to reduce the thickness of the floor slab after the upper and lower concrete module units are spliced, Figure 8 As shown, a first horizontal groove 1111 is provided at the bottom of the first concrete bottom plate 111, and a plurality of first horizontal grooves 1111 are provided. The plurality of first horizontal grooves 1111 are evenly arranged along the length direction of the first concrete bottom plate 111, and a first horizontal protrusion 1112 is formed between adjacent first horizontal grooves 1111. A second horizontal groove 1121 is provided at the top of the first concrete top plate 112, and a plurality of second horizontal grooves 1121 are provided. The plurality of second horizontal grooves 1121 are evenly arranged along the length direction of the first concrete top plate 112, and a second horizontal protrusion 1122 is formed between adjacent second horizontal grooves 1121. The second horizontal protrusion 1122 cooperates with the first horizontal groove 1111, and the second horizontal groove 1121 cooperates with the first horizontal protrusion 1112. When the first concrete bottom plate 111 of the upper layer is connected to the first concrete top plate 112 of the lower layer, the first horizontal protrusion 1112 is inserted into the second horizontal groove 1121, and the second horizontal protrusion 1122 is inserted into the first horizontal groove 1111, which can effectively reduce the thickness of the first concrete bottom plate 111 and the first concrete top plate 112 after being overlapped. It is worth noting that the first concrete bottom plate 111 and the first concrete top plate 112 still need to meet the structural strength after the grooves are cut, that is, meet the use requirements.

[0058] In order to improve the stress integrity and seismic performance of the concrete module unit, the first concrete wall panel 113, the second concrete wall panel 114, the third concrete wall panel 115, the fourth concrete wall panel 116, the first concrete bottom plate 111 and the first concrete top plate 112 are all provided with steel mesh 5, and the steel mesh 5 is fully spread along the concrete wall panels, concrete bottom plates and concrete top plates, and is pre-embedded in the concrete wall panels, concrete bottom plates and concrete top plates.

[0059] It is worth noting that since a first hole 1131 is provided in the first concrete wall panel 113 and a second hole 1151 is provided in the third concrete wall panel 115, steel meshes 5 are provided on both sides of the first hole 1131 and on both sides of the second hole 1151. In other words, one steel mesh 5 is provided in the first concrete bottom plate 111, the first concrete top plate 112, the second concrete wall panel 114 and the fourth concrete wall panel 116, and two steel meshes 5 are provided in the first concrete wall panel 113 and the third concrete wall panel 115.

[0060] like Fig.19 As shown, the steel mesh 5 includes a frame 51 and steel bars 52. The frame 51 is welded into a quadrilateral (a U-shaped structure) by steel plates or angle steels, and the steel bars 52 are arranged horizontally and vertically in the frame 51. In this embodiment, welding is used to form a three-dimensional force-bearing skeleton, which has high processing efficiency and can solve the problem of insufficient anchoring length of steel bars at corners and large amount of steel bars tied when the wall is thin, thereby improving the integrity of the concrete module and its seismic performance.

[0061] The second corner concrete module unit 12 is a mirror image structure of the first corner concrete module unit 11. The first middle concrete module unit 13 is different from the first corner concrete module unit 11 in that the first middle concrete module unit 13 has two fourth concrete wall panels 116, that is, the third concrete wall panel 115 is replaced by the fourth concrete wall panel 116 to adapt to the situation that the first middle concrete module unit 13 is located in the middle part, and it has only one outer wall, that is, the first concrete wall panel 113. The structures of the second corner concrete module unit 12 and the first middle concrete module unit 13 are not described in detail here.

[0062] like Figure 1 As shown, the second concrete module unit 2 includes a first side concrete module unit 21 and a second middle concrete module unit 22. The second middle concrete module unit 22 is arranged between the two first side concrete module units 21. The joint between the first side concrete module unit 21 and the second middle concrete module unit 22 forms a single wall structure.

[0063] Specifically, Fig. 9As shown, the first side concrete module unit 21 includes a second concrete bottom plate 211, a second concrete top plate 212, a fifth concrete wall plate 213, a sixth concrete wall plate 214, a first steel frame 215 and a second steel frame 216. The second concrete bottom plate 211 and the second concrete top plate 212 are arranged in parallel, the fifth concrete wall plate 213 and the sixth concrete wall plate 214 are arranged in parallel, the first steel frame 215 and the second steel frame 216 are arranged in parallel, and the second concrete bottom plate 211 is perpendicular to the fifth concrete wall plate 213 and the first steel frame 215. The first steel frame 215 is connected to the second concrete wall plate 114.

[0064] It should be noted that the steel frame (the first steel frame 215 and the second steel frame 216) includes a top steel beam, a bottom steel beam and two steel columns, the top steel beam and the bottom steel beam are parallel, and the steel columns are vertically connected to the top steel beam and the bottom steel beam to form a rectangular steel frame. The steel frame can be buried in the bottom plate, top plate, and wall plate, or it can be exposed and protruded outside the bottom plate, top plate, and wall plate.

[0065] In order to reduce the weight of the first side concrete module unit 21, as Fig. 9 As shown, the fifth concrete wall panel 213 is a perforated wall, which is used for bearing the external wall of a building. A third hole 2131 is provided along the height direction of the fifth concrete wall panel 213, and the third holes 2131 are evenly arranged along the length direction of the fifth concrete wall panel 213. The third holes 2131 are filled with thermal insulation materials such as rock wool or polyurethane, which can reduce the weight of the concrete module unit, reduce the difficulty of transportation and hoisting, and improve the thermal insulation performance of the external wall.

[0066] In order to improve the rigidity and bearing capacity of the wall, Fig. 9 As shown, a third vertical rib 2141 is provided on the outer side of the sixth concrete wall panel 214. There are multiple third vertical ribs 2141, and the multiple third vertical ribs 2141 are evenly arranged along the length direction of the sixth concrete wall panel 214. The third vertical ribs 2141 protrude from the outer side surface of the sixth concrete wall panel 214, and third vertical grooves 2142 are formed between adjacent third vertical ribs 2141.

[0067] In order to reduce the thickness of the floor slab after the upper and lower concrete module units are spliced, Fig.10As shown, the bottom plate of the second concrete bottom plate 211 is provided with a plurality of third horizontal grooves 2111, which are evenly arranged along the length direction of the second concrete bottom plate 211, and a third horizontal protrusion 2112 is formed between adjacent third horizontal grooves 2111. The top of the second concrete top plate 212 is provided with a plurality of fourth horizontal grooves 2121, which are evenly arranged along the length of the second concrete top plate 212, and a fourth horizontal protrusion 2122 is formed between adjacent fourth horizontal grooves 2121. The third horizontal grooves 2111 of the upper layer cooperate with the fourth horizontal protrusion 2122 of the lower layer, and the third horizontal protrusion 2112 of the upper layer cooperate with the fourth horizontal grooves 2121 of the lower layer, so as to reduce the thickness of the floor slab formed after the upper concrete bottom plate and the lower concrete top plate are connected.

[0068] It is understandable that the second concrete bottom plate 211 , the second concrete top plate 212 , the fifth concrete wall plate 213 and the sixth concrete wall plate 214 are also provided with steel meshes 5 .

[0069] The difference between the second middle concrete module unit 22 and the first side concrete module unit 21 is that the second middle concrete module unit 22 has two sixth concrete wall panels 214 at the same time, and does not have the fifth concrete wall panel 213 serving as an external load-bearing wall.

[0070] like Figure 1 As shown, the third concrete module unit 3 includes a third corner concrete module unit 31, a third middle concrete module unit 32 and a fourth corner concrete module unit 33. The third middle concrete module unit 32 is arranged between the third corner concrete module unit 31 and the fourth corner concrete module unit 33. The spliced ​​wall of the third middle concrete module unit 32 and the third corner concrete module unit 31 and the fourth corner concrete module unit 33 forms a single wall structure.

[0071] Specifically, Fig.11 As shown, the third corner concrete module unit 31 includes a third steel frame 311, a seventh concrete wall panel 312, an eighth concrete wall panel 313, a ninth concrete wall panel 314, a third concrete bottom panel 315 and a third concrete top panel 316. The third steel frame 311 is connected to the second steel frame 216, and the third steel frame 311 is arranged in parallel with the seventh concrete wall panel 312, the eighth concrete wall panel 313 and the ninth concrete wall panel 314 are arranged in parallel, the third concrete bottom panel 315 and the third concrete top panel 316 are parallel and vertically connected to the third steel frame 311 and the seventh concrete wall panel 312. The seventh concrete wall panel 312 and the eighth concrete wall panel 313 are both used as external load-bearing walls, and the ninth concrete wall panel 314 is used as an internal load-bearing wall.

[0072] Furthermore, if Fig.11As shown, the seventh concrete wall panel 312 is provided with a fourth hole 3121, which is evenly arranged along the length direction of the seventh concrete wall panel 312, the eighth concrete wall panel 313 is provided with a fifth hole 3131, which is evenly arranged along the length direction of the eighth concrete wall panel 313, the fourth hole 3121 and the fifth hole 3131 are filled with thermal insulation materials such as rock wool or polyurethane, and the fourth hole 3121 and the fifth hole 3131 respectively penetrate the seventh concrete wall panel 312 and the eighth concrete wall panel 313 along the height direction of the seventh concrete wall panel 312 and the eighth concrete wall panel 313. It can reduce the weight of the concrete module unit and reduce the difficulty of transportation, and at the same time improve the thermal insulation performance of the exterior wall.

[0073] like Fig.11 As shown, the outer side of the ninth concrete wall panel 314 is provided with a fourth vertical rib 3141, and a plurality of fourth vertical ribs 3141 are evenly arranged along the length direction of the ninth concrete wall panel 314, and fourth vertical grooves 3142 are formed between adjacent fourth vertical ribs 3141. The fourth vertical ribs 3141 can improve the rigidity and bearing capacity of the ninth concrete wall panel 314.

[0074] like Fig.12 As shown, the bottom of the third concrete bottom plate 315 is provided with a plurality of fifth horizontal grooves 3151, which are evenly arranged along the length direction of the third concrete bottom plate 315, and a fifth horizontal protrusion 3152 is formed between adjacent fifth horizontal grooves 3151. The top of the third concrete top plate 316 is provided with a sixth horizontal groove 3161, which is evenly arranged along the length direction of the third concrete top plate 316, and a sixth horizontal protrusion 3162 is formed between adjacent sixth horizontal grooves 3161. The fifth horizontal grooves 3151 of the upper layer are plugged into the sixth horizontal protrusion 3162 of the lower layer, and the fifth horizontal protrusion 3152 of the upper layer is plugged into the sixth horizontal grooves 3161 of the lower layer, so that the spliced ​​third concrete bottom plate 315 and the third concrete top plate 316 form a single wall structure, reducing the thickness of the floor slab after the two are connected.

[0075] It can be understood that the seventh concrete wall panel 312 , the eighth concrete wall panel 313 , the ninth concrete wall panel 314 , the third concrete bottom panel 315 and the third concrete top panel 316 are all provided with steel meshes 5 .

[0076] The third corner concrete module unit 31 and the fourth corner concrete module unit 33 are mirror-image structures, and the difference between the third middle concrete module unit 32 and the third corner concrete module unit 31 is that the third middle concrete module unit 32 has two ninth concrete wall panels 314 at the same time, and does not have the eighth concrete wall panel 313 serving as an external load-bearing wall.

[0077] It should be noted that the door openings and window openings on the concrete module units are set according to needs.

[0078] like Fig.13 and Fig.14 As shown, the damping node 4 includes an upper connection box 41 and a lower connection box 42, which are respectively arranged at the bottom of the upper wallboard and the top of the lower wallboard. The upper connection box 41 and the lower connection box 42 are plug-connected.

[0079] Specifically, Fig.14 , Fig.15 , Fig.16 , Fig.17 The upper connecting box 41 includes a first box body 411, a fixed shaft 412, a first elastic member 413, a second elastic member 414 and a snap-fitting connector 415. A fixed plate 4111 is provided inside the first box body 411, and the fixed plate 4111 is vertically connected to the top plate of the first box body 411. A sphere 4121 is provided in the middle of the fixed shaft 412. Two spheres 4121 are provided, and the two spheres 4121 divide the fixed shaft 412 into three sections. Two snap-fitting connectors 415 are provided, and the two snap-fitting connectors 415 are respectively connected to one sphere 4121. The upper end of the snap-fitting connector 415 is provided with a sphere 4121. 121 is rotatably connected to the ball socket, the lower end of the bite connection member 415 is provided with a hook 4151 connected to the lower connection box 42, the first elastic member 413 and the second elastic member 414 are both sleeved on the fixed shaft 412, the first elastic member 413 is provided between the fixed plate 4111 and the ball 4121, the second elastic member 414 is provided between the ball 4121 and the inner wall of the first box body 411, the two ends of the first elastic member 413 respectively press the fixed plate 4111 and one side of the bite connection member 415, and the two ends of the second elastic member 414 respectively press the other side of the bite connection member 415 and the inner wall of the first box body 411. Preferably, as Fig.18 As shown, the first elastic member 413 includes end plates 4131 at both ends and a spring 4132 in the middle. The second elastic member 414 has the same structure as the first elastic member 413 and will not be described again.

[0080] like Fig.14 , Fig.15 and Fig.16As shown, the lower connection box 42 includes a second box body 421 and a cylindrical T-shaped fixing member 422 disposed in the second box body 421. A slot 4211 is disposed on the top of the second box body 421 to facilitate the insertion of the snap-in connector 415. The top of the cylindrical T-shaped fixing member 422 is a smooth cylindrical surface between the cylindrical T-shaped fixing member 422 and the bottom plate of the second box body 421. The lower end hook 4151 of the snap-in connector 415 is hooked with the cylindrical T-shaped fixing member 422. When there is a manufacturing error, the upper end of the snap-in connector 415 will rotate around the sphere 4121 and remain stable under the joint action of the first elastic member 413 and the second elastic member 414. The rotation of the upper end of the snap-in connector 415 is only a small rotation to adapt to the error. Fig.15 (a) is the state where the upper connection box 41 and the lower connection box 42 are not connected when there is no error, Fig.15 (b) is the state when the upper connection box 41 and the lower connection box 42 are just in contact without error. Fig.15 (c) is the state after the upper connection box 41 and the lower connection box 42 are connected when there is no error, Fig.16 (a) is the state where the upper connection box 41 and the lower connection box 42 are not connected when there is no error. Fig.16 (b) is the state when the upper connection box 41 and the lower connection box 42 are just in contact when there is an error. Fig.16 (c) shows the state after the upper connection box 41 and the lower connection box 42 are connected when there is an error.

[0081] When the upper connection box 41 is close to the lower connection box 42, the snap connection piece 415 extends into the slot 4211 of the second box body 421 and contacts the cylindrical T-shaped fixing piece 422. By squeezing the hook 4151 downward to slide across the smooth cylindrical surface, the hook 4151 will rotate outward around the cylindrical surface, and the rotating end of the snap connection piece 415 will rotate accordingly, and squeeze the first elastic piece 413 and the second elastic piece 414 on both sides, and produce uneven compression deformation. The upper connection box 41 continues to move downward, and the hook 4151 completes the sliding route of the cylindrical surface. Under the elastic recovery action of the first elastic piece 413 and the second elastic piece 414, the hook 4151 is stuck in the groove of the cylindrical T-shaped fixing piece 422, realizing the dry connection of the upper and lower concrete modules.

[0082] It should be noted that the upper end of the snap-fit ​​connector 415 may also be configured as a double-sided tapered hole to cooperate with the fixed shaft 412 to achieve deflection.

[0083] Example 2

[0084] Another specific embodiment of the present invention discloses a construction method of a concrete modular building, which is used for the construction of the concrete modular building using dry shock-absorbing nodes in Example 1, and includes the following steps:

[0085] Step S1: A connection box 42 is reserved at the base.

[0086] Step S2: hoist the first-floor concrete module unit, and connect the upper connection box 41 with the lower connection box 42 to achieve a quick connection of the foundation of the first-floor concrete module unit.

[0087] Exemplarily, the first corner concrete module unit 11 is hoisted, the protrusion of the inner load-bearing wall of the first middle concrete module unit 13 is plugged into the groove of the inner load-bearing wall of the first corner concrete module unit 11, and the protrusion of the inner load-bearing wall of the second corner concrete module unit 12 is plugged into the groove of another inner load-bearing wall of the first middle concrete module unit 13. The steel frame of the first side concrete module unit 21 is connected to another inner load-bearing wall of the first corner concrete module unit 11, the protrusion of the inner load-bearing wall of the second middle concrete module unit 22 is plugged into the groove of the inner load-bearing wall of the first side concrete module unit 21, the protrusion of another inner load-bearing wall of the second middle concrete module unit 22 is plugged into the groove of the inner load-bearing wall of another first side concrete module unit 21, the steel frame of the second middle concrete module unit 22 is connected to another inner load-bearing wall of the first middle concrete module unit 13, and the steel frame of another first side concrete module unit 21 is connected to another inner load-bearing wall of the second corner concrete module unit 12. The steel frame of the third corner concrete module unit 31 is connected to another steel frame of the first side concrete module unit 21, the protrusion of the inner load-bearing wall of the third middle concrete module unit 32 is inserted into the groove of the inner load-bearing wall of the third corner concrete module unit 31, the steel frame of the third middle concrete module unit 32 is connected to another steel frame of the second middle concrete module unit 22, the protrusion of another inner load-bearing wall of the third middle concrete module unit 32 is spliced ​​with the groove of the inner load-bearing wall of the fourth corner concrete module unit 33, and the steel frame of the fourth corner concrete module unit 33 is connected to the steel frame of the adjacent first side concrete module unit 21.

[0088] It should be noted that the concrete module units can be spliced ​​according to actual needs and are not limited to the nine-square grid connection method of this embodiment.

[0089] It is worth noting that in order to improve the stability of the base, a horizontal connection plate is placed on the top of the first-floor concrete module unit and welded to the top plate of the lower connection box 42 to achieve horizontal connection between the first-floor concrete module units.

[0090] Step S3: hoisting the concrete module units of the second layer, the concrete module units of the second layer are connected to the upper connection boxes 41 of the concrete module units of the lower layer through the lower connection boxes 42.

[0091] The layout of the installation step S2 installs the corresponding concrete module units, and the corresponding concrete module units can also be installed according to actual needs.

[0092] Repeat steps S2 to S3 until the concrete modular building is completed.

[0093] In this embodiment, the pre-buried error-adaptive shock-absorbing nodes can realize dry connection of concrete module units, avoiding a large amount of wet operations, saving energy and being environmentally friendly; at the same time, the axial expansion and contraction of the elastic parts improves the energy dissipation and shock-absorbing performance of the nodes, thereby improving the safety of the structure under earthquake action. The shock absorbing node 4 can both adapt to errors and dissipate energy and reduce shock. Through the deformation coordination of four groups of elastic connectors and the double-sided tapered holes (or ball sockets) of the bite connector 415, the bite connector 415 can rotate around the fixed axis 412. When there is a horizontal error in the upper and lower concrete module units, the left and right bite connectors 415 can be engaged with the cylindrical T-shaped fixings 422 in the lower connection box through rotations of different amplitudes, thereby solving the problem of difficult installation alignment when there are errors in on-site positioning; when the structure resists horizontal forces, the upper and lower connection boxes will produce relative horizontal displacement, and the cylindrical T-shaped fixings 422 of the lower connection box 42 will squeeze the bite connector 415 on one side of the upper connection box 41 and transmit it to the two parallel groups of elastic members. Through the axial expansion and contraction deformation of the elastic members, part of the seismic energy is consumed, the seismic energy acting on the concrete module units is reduced, and the purpose of energy dissipation and shock reduction is achieved.

[0094] It is worth noting that before step S1, step S0 is also included: prefabrication of concrete module units in a factory, which specifically includes the following steps:

[0095] Step 01: Complete the processing of the steel mesh 5 of the top plate, bottom plate and wall plate, and complete the welding processing of the steel frame.

[0096] Step 02: Weld the steel mesh 5 of the top plate and the wall plate into a three-dimensional skeleton. When the concrete module unit is a three-sided wall or a two-sided wall, the steel mesh 5 and the steel frame can be welded into a three-dimensional frame.

[0097] Step 03: Weld and fix the upper connection box 41 and the lower connection box 42 to the wall panel reinforcement and the frame 51.

[0098] Step 04: Arrange the embedded pipelines and parts on the wall panels and roof panels, and fix them.

[0099] Step 05: Install and secure the wall and roof formwork, and pour concrete.

[0100] Step 06: Weld the steel mesh 5 of the bottom plate and the frame 51 or the steel frame (if any) of the steel mesh 5 of the wall panel.

[0101] Step 07: Install and secure the top plate formwork, pour concrete, and complete the processing of the concrete module unit.

[0102] The prefabrication method of the concrete module unit of this embodiment has high processing efficiency, and can solve the problem of insufficient lap anchorage length of steel bars at corners and large amount of steel bars tied when the wall is thin, thereby improving the overall stress performance and seismic performance of the concrete module.

[0103] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A concrete modular building using dry shock-absorbing nodes, characterized in that: The concrete module comprises at least two layers of concrete modules, wherein the concrete module comprises a first concrete module unit (1), a second concrete module unit (2), a third concrete module unit (3) and a shock absorbing node (4); The second concrete module unit (2) is arranged between the first concrete module unit (1) and the third concrete module unit (3), and / or the second concrete module unit (2) is arranged between two of the first concrete module units (1); There is a single wall panel between the first concrete module unit (1) and the second concrete module unit (2), there is no wall panel between the second concrete module unit (2) and the third concrete module unit (3), and the upper concrete module and the lower concrete module are connected via the shock absorbing node (4).

2. The concrete modular building using dry shock-absorbing nodes according to claim 1 is characterized in that: The first concrete module unit (1) comprises a first corner concrete module unit (11), a second corner concrete module unit (12) and a first middle concrete module unit (13); the first middle concrete module unit (13) is arranged between the first corner concrete module unit (11) and the second corner concrete module unit (12).

3. The concrete modular building using dry shock-absorbing nodes according to any one of claims 1 to 2, characterized in that: The first concrete module unit (1), the second concrete module unit (2) and the third concrete module unit (3) are all provided with steel mesh sheets (5).

4. The concrete modular building using dry shock-absorbing nodes according to claim 2, characterized in that: The joints between the first middle concrete module unit (13) and the first corner concrete module unit (11) and the second corner concrete module unit (12) are all single wall panels.

5. The concrete modular building using dry shock-absorbing nodes according to any one of claims 1-2 and 4, characterized in that: The second concrete module unit (2) comprises a first side concrete module unit (21) and a second middle concrete module unit (22); the second middle concrete module unit (22) is arranged between two of the first side concrete module units (21); and a composite wall panel is formed at a joint between the first side concrete module unit (21) and the second middle concrete module unit (22).

6. The concrete modular building using dry shock-absorbing nodes according to any one of claims 1-2 and 4, characterized in that: The third concrete module unit (3) comprises a third corner concrete module unit (31), a third middle concrete module unit (32) and a fourth corner concrete module unit (33); the third middle concrete module unit (32) is arranged between the third corner concrete module unit (31) and the fourth corner concrete module unit (33); and a single wall panel is formed at the joint between the third middle concrete module unit (32) and the third corner concrete module unit (31) and the fourth corner concrete module unit (33).

7. The concrete modular building using dry shock-absorbing nodes according to claim 2, characterized in that: The first corner concrete module unit (11) comprises a first concrete base plate (111), a plurality of first horizontal grooves (1111) are provided at the bottom of the first concrete base plate (111), and first horizontal protrusions (1112) are formed between adjacent first horizontal grooves (1111).

8. The concrete modular building using dry shock-absorbing nodes according to claim 7, characterized in that: The first corner concrete module unit (11) further comprises a first concrete top plate (112), a plurality of second horizontal grooves (1121) are provided on the top of the first concrete top plate (112), and second horizontal protrusions (1122) are formed between adjacent second horizontal grooves (1121).

9. The concrete modular building using dry shock-absorbing nodes according to claim 8, characterized in that: The first horizontal groove (1111) of the upper layer is connected to the second horizontal protrusion (1122) of the lower layer, and the first horizontal protrusion (1112) of the upper layer is connected to the second horizontal groove (1121) of the lower layer.

10. A construction method, characterized in that: Used for the construction of concrete modular buildings using dry shock-absorbing nodes as described in any one of claims 1-9.

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