Self-locking grouting connection structure for steel structure modular building

Abstract

The utility model relates to the technical field of steel structure modular buildings, in particular to a self-locking grouting connecting structure for a steel structure modular building, which comprises a connecting piece, and the connecting piece is inserted into a cavity of an adjacent module column so as to connect the adjacent module column. The connecting piece comprises a main rod and a plurality of elastic elements arranged on the outer edge of the main rod at equal intervals in the circumferential direction of the main rod, and the elastic elements are arranged on the main rod in a telescopic mode. The side wall of the cavity is provided with a clamping hole for inserting an elastic element, and the end part of the elastic element is inserted into the clamping hole, so that the module column is fixedly connected with the connecting piece.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure modular buildings, in particular to a self-locking grouting connection structure used for steel structure modular buildings. Background Art

[0002] As a high-end prefabricated building product, steel structure modular buildings have the characteristics of high integration, rapid construction, removable turnover, and extensibility, which further reflects the advantages of industrialized green construction and is gradually widely used in tourism real estate, apartment dormitories, commercial public buildings, expansion and reconstruction and other fields with specific functional requirements. Before construction and installation, steel structure modular buildings have completed the integrated manufacturing of the building, structure, enclosure, water, heating, electricity, and decoration of each functional unit in the factory. During the on-site construction stage, only node connection and pipeline connection and a small amount of decoration work need to be completed after hoisting to form a complete building. It is the best form of realizing the integration of building industrialization and prefabricated buildings and prefabricated decoration.

[0003] Although steel structure modular buildings have advantages such as high integration and fast construction speed, the performance of the connection nodes between modules is often only suitable for mid- and low-rise buildings or temporary transitional buildings, and it is often difficult to promote and apply them in high-rise buildings. Therefore, the performance of the connection nodes of steel structure modular buildings is the key to affecting the overall structural mechanical properties of the building.

[0004] Traditional steel structure modular buildings are mainly connected by bolts, usually after the module box is hoisted into place, the bolts are installed in the predetermined position for fixing. However, in the actual construction process, due to the small space reserved between modules, the bolts can only be tightened by manual work, which greatly reduces the construction efficiency. In addition, it is difficult to ensure the connection performance of the bolts by manual work, which greatly affects the mechanical properties of the nodes and brings safety hazards to the structural performance of the overall building. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a self-locking grouting connection structure for steel structure modular buildings, which solves the technical problems of complicated fixing methods and low construction efficiency of the existing steel structure modules.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0009] A self-locking grouting connection structure for a steel structure modular building, wherein the steel structure modular building comprises a plurality of modules, wherein the modules comprise module columns and module beams, and further comprises a connecting piece, wherein the connecting piece is inserted into the cavity of adjacent module columns to connect the adjacent module columns;

[0010] The connecting member comprises: a main rod and a plurality of elastic elements arranged at equal intervals along the circumference of the main rod on the outer edge of the main rod, wherein the elastic elements are telescopically arranged on the main rod;

[0011] A clamping hole for inserting an elastic element is provided on the side wall of the cavity, and the end of the elastic element is inserted into the clamping hole so that the module column is fixedly connected to the connecting piece.

[0012] The elastic element comprises a sleeve, a clamp and a spring, one end of the sleeve is fixedly connected to the main rod, and the other end of the sleeve is connected to the clamp;

[0013] The sleeve has a cavity inside for arranging a spring. One end of the spring is fixed to the bottom of the sleeve, and the other end of the spring is connected to the clamping piece so that the clamping piece can be telescopically arranged on the sleeve.

[0014] An inner partition for forming a grouting space is provided in the cavity, and the inner partition is fixedly connected to the module column;

[0015] The inner side wall of the module column is provided with a positioning groove, and the positioning groove is arranged along the center line of the side surface of the module column.

[0016] The clamping hole is arranged in the positioning groove and is located in the grouting space.

[0017] A main board is provided in the middle of the main rod and is fixedly connected to the main rod.

[0018] The main board and the inner partition above the connecting piece are both provided with grouting holes and exhaust holes, which are symmetrically distributed about the axis of the connecting piece. The grouting conduit is inserted into the grouting space through the grouting hole so that the grouting material fills the grouting space.

[0019] A conduit hole is provided on the side wall above the inner partition of the module column connected to the upper end of the connecting piece, and the grouting conduit is inserted into the grouting space through the conduit hole and the grouting hole in sequence.

[0020] A peg group is also provided along the circumference of the main rod, and the peg group array is between two adjacent elastic elements.

[0021] (III) Beneficial effects

[0022] The beneficial effects of the utility model are as follows: the utility model provides a self-locking grouting connection structure for steel structure modular buildings, which is easy to install, reduces construction procedures, and improves construction efficiency.

[0023] By arranging a retractable elastic element on the connecting piece, when the connecting piece is inserted into the preset position of the module column, the elastic element is automatically inserted into the clamping hole of the module column, so that the connecting piece and the module column are quickly fixed, and the operation is simple and convenient.

[0024] By providing a main plate with grouting holes on the connector, the connection strength between the module column and the connector is strengthened, and the grouting operation of the lower module is facilitated during the installation process. A bolt group is also provided on the connector, and after grouting, the module column and the connector can be tightly connected and fixed, thereby improving the stability of the main structure of the module.

[0025] A bolt group is also provided on the main rod of the connector. After the connector is inserted into the module column, the self-compacting grouting material is poured into the grouting space in the module. Since the grouting operation is cast-in-place on site and the module connector is completely wrapped after the grouting material solidifies, a tight connection between the module columns is achieved while improving the stability of the overall structure.

[0026] The connection nodes of the utility model first adopt the form of self-locking and then grouting of the connecting parts, avoiding the process of reserving secondary operation space for bolt connection of traditional steel structure nodes. The module unit can be directly prefabricated as a whole and then installed, which reduces the workload and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of a steel structure modular building of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the self-locking grouting connection structure of the module corner column node of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the self-locking grouting connection structure of the module side column node of the utility model;

[0030] Figure 4 A schematic structural diagram of a self-locking grouting connection structure of a module center column node of the utility model;

[0031] Figure 5 A horizontal cross-sectional view of the self-locking grouting connection structure of the module corner column node of the utility model;

[0032] Figure 6 A horizontal cross-sectional view of the self-locking grouting connection structure of the module side column node of the utility model;

[0033] Figure 7A horizontal cross-sectional view of the self-locking grouting connection structure of the module center column node of the utility model;

[0034] Figure 8 A three-dimensional diagram of a connector of a module corner column node of the utility model;

[0035] Fig. 9 It is a top view of the connector of the module corner column node of the utility model;

[0036] Fig.10 A three-dimensional diagram of a connector of a module side column node of the utility model;

[0037] Fig.11 A top view of a connector of a module side column node of the utility model;

[0038] Fig.12 A three-dimensional diagram of a connector of a module side column node of the utility model;

[0039] Fig.13 It is a top view of the connector of the module side column node of the utility model;

[0040] Fig.14 It is a partial vertical cross-sectional view of the upper module of the self-locking grouting connection structure of the utility model;

[0041] Fig.15 It is a partial vertical cross-sectional view of the lower module of the self-locking grouting connection structure of the utility model;

[0042] Fig.16 It is a side view of the connector of the utility model (without the main board);

[0043] Fig.17 It is a top view of the connector of the present invention (without the main board).

[0044] [Description of Reference Numerals]

[0045] 1: Module corner column node; 2: Module side column node; 3: Module center column node;

[0046] 10: connector; 11: main board; 12: main rod; 13: elastic element; 131: clamp; 132: sleeve; 133: spring; 14: bolt group; 15: grouting material;

[0047] 20: module column; 201: positioning groove; 202: clamping hole; 203: conduit hole; 204: grouting hole; 205: exhaust hole; 206: inner partition;

[0048] 21: Modular beam. DETAILED DESCRIPTION

[0049] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 2 The orientation is used as a reference.

[0050] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0051] The utility model provides a self-locking grouting connection structure for a steel structure modular building, wherein the steel structure modular building comprises a plurality of modules, the modules are stacked layer by layer, and adjacent modules are fixedly connected. The module comprises a module column 20 and a module beam 21, wherein the module beam 21 is perpendicular to the module column 20, and the plurality of module columns 20 and the module beam 21 form a structural frame of the module.

[0052] The self-locking grouting connection structure also includes a connector 10, which is inserted into the cavity of the adjacent module columns 20 to connect the adjacent module columns 20. The connector 10 has a retractable elastic element 13, and the elastic element 13 is inserted into the clamping hole 202 set on the module column 20, so that the connector 10 is fixedly connected to the module column 20.

[0053] The connecting member 10 includes a main board 11, a main rod 12 passing through the main board 11, and a plurality of elastic elements 13 arranged at equal intervals along the circumference of the main rod 12 at the outer edge of the main rod 12. The main rod 12 is located in the middle of the main board 11 and is fixedly connected to the main rod 12. The main rod 12 is a steel pipe with an octagonal horizontal cross-section. The elastic element 13 is telescopically arranged on the side wall of the main rod 12.

[0054] The elastic element 13 is arranged corresponding to the side wall of the module column 20, and the elastic element 13 includes a sleeve 132, a clamp 131 and a spring 133. One end of the sleeve 132 is fixedly connected to the main rod 12, and the other end of the sleeve 132 is telescopically connected to the clamp 131 through the spring 133. The sleeve 132 has a cavity for arranging the spring 133. One end of the spring 133 is fixed to the bottom of the sleeve 132, and the other end is connected to the clamp 131, so that the clamp 131 can be telescopically arranged on the sleeve 132.

[0055] The module column 20 has a cavity inside, and an inner partition 206 for forming a grouting space is arranged in the cavity, and the inner partition 206 is fixedly connected to the module column 20. A positioning groove 201 is arranged on the inner side wall of the module column 20, and the horizontal cross section of the positioning groove 201 is "H"-shaped and is located at the midline position of the four sides of the module column 20. The outer groove of the positioning groove 201 is mainly used to limit the clamp 131.

[0056] A clamping hole 202 is also provided in the middle of the positioning groove 201, which is mainly distributed on the concave surface of the positioning groove 201. The clamping hole 202 is located at the end of the module column 20, that is, below the inner partition 206 of the upper module column 20, or above the inner partition 206 of the lower module column 20. The clamping hole 202 is mainly used for positioning the connector 10 of the steel structure module column 20 and for clamping installation.

[0057] When the connector 10 is inserted into the module column 20, the elastic element 13 on the connector 10 moves along the positioning groove 201 until the clamp 131 corresponds to the position of the clamp hole 202. Under the elastic force of the spring 133, the clamp 131 is inserted into the clamp hole 202 and fits with the clamp hole 202, completing the fixation of the connector 10 and the module column 20, which is convenient for subsequent grouting operations.

[0058] A conduit hole 203 is also provided on the side wall of the module column 20. The conduit hole 203 is located above the inner partition 206 of the upper module column 20 and is used for the installation and positioning of the grouting conduit. The grouting conduit passes through the conduit hole 203 and the inner partition 206 from the outside of the module column 20 to connect with the grouting space.

[0059] Grouting holes 204 and exhaust holes 205 are provided on the main board 11 and the inner partition 206 located above the connector 10. The grouting holes 204 and the exhaust holes 205 are symmetrically distributed about the axis of the connector 10, which facilitates the grouting operation in the node connection area after the connector 10 of the steel structure module column 20 is installed. The grouting holes 204 on the main board 11 are used to grout the grouting space of the module column 20 after the connector 10 is inserted into the module column 20 of the lower module, so that the grouting material 15 fills the grouting space. The exhaust holes 205 are mainly used to exhaust the node connection area during the grouting operation to ensure the compactness of the grouting in the node connection area.

[0060] The grouting holes 204 on the inner partition 206 are used for grouting into the module columns 20 of the upper modules after the corresponding connectors 10 of the module columns 20 of the upper modules are hoisted and plugged in. When grouting the module columns 20 of the upper modules, the grouting conduit passes through the conduit hole 203 and the grouting hole 204 from the outside in sequence, is inserted into the module columns 20, and grouting is performed into the module columns 20 until the grouting material 15 fills the grouting space. The exhaust holes 205 are mainly used to exhaust the node connection area during the grouting operation to ensure the compactness of the grouting in the node connection area. The inner partition 206 of the module column 20 located in the lower module is not provided with a grouting hole 204, and serves as the bottom plate of the grouting space.

[0061] A bolt group 14 is also provided between the elastic elements 13 , and the bolt group 14 is used to enhance the connection strength between the grouting material 15 and the connecting member 10 .

[0062] There are three types of connection nodes between adjacent modules, namely, module corner column node 1, module side column node 2 and module middle column node 3. Module corner column node 1 includes 1 module column 20 located at the upper layer and 1 module column 20 located at the lower layer; module side column node 2 includes 2 module columns 20 located at the upper layer and 2 module columns 20 located at the lower layer; module middle column node 3 includes 4 module columns 20 located at the upper layer and 4 module columns 20 located at the lower layer, and the module columns 20 are connected by module beams 21. The module beams 21 include a plurality of square steel pipes, which are fixedly connected to the four sides of the module columns 20 according to the three forms of corner column nodes, side column nodes and middle column nodes.

[0063] The sizes of the main boards 11 of different connection nodes can be set according to the actual installation conditions of the connection members 10. The main boards 11 on the two connection members 10 of the module side column section 2 can be set as one, that is, the main rods 12 of the two connection members 10 pass through the same main board 11, and the size of the main board 11 matches the horizontal cross-sectional size of the two module columns 20. The main boards 11 on the four connection members 10 of the module middle column node 3 can be set as one, that is, the main rods 12 of the four connection members 10 pass through the same main board 11, and the size of the main board 11 matches the horizontal cross-sectional size of the four module columns 20.

[0064] The installation method of the self-locking grouting connection structure for steel structure modular building of the utility model comprises the following steps:

[0065] Step 1: hoist the steel structure module located at the lower level to the preset position;

[0066] Step 2: Insert the connector 10 of the module column 20 into the module column 20 of the lower module, so that the elastic element 13 at the lower end of the connector 10 is stuck in the clamping hole 202 of the module column 20;

[0067] Step 3: pouring the self-compacting grouting material 15 into the cavity of the module column 20 of the lower module through the grouting holes 204 on the main board 11 to achieve a tight connection between the connector 10 and the module column 20;

[0068] Step 4: hoist the steel structure module located on the upper layer, and clamp the elastic element 13 at the upper end of the connecting member 10 into the clamping hole 202 of the module column 20 of the upper module;

[0069] Step 5: The self-compacting grouting material 15 is poured into the cavity of the module column 20 of the column of the upper module from the outside through the grouting conduit through the conduit hole 203 and the grouting hole 204 in sequence, so as to achieve a tight connection between the connector 10 and the module column 20.

[0070] The utility model provides a self-locking grouting connection structure for a steel structure modular building, which is easy to install, reduces construction procedures, and improves construction efficiency.

[0071] By providing a retractable elastic element 13 on the connecting member 10, when the connecting member 10 is inserted into the preset position of the module column 20, the elastic element 13 is automatically inserted into the clamping hole 202 of the module column 20, thereby realizing rapid fixation of the connecting member 10 and the module column 20, and the operation is simple and convenient.

[0072] By providing the main plate 11 with the grouting holes 204 on the connector 10, the connection strength between the module column 20 and the connector 10 is strengthened, and the grouting operation of the lower module is facilitated during the installation process. The connector 10 is also provided with a bolt group 14, which can achieve a tight connection and fixation between the module column 20 and the connector 10 after grouting, thereby improving the stability of the main structure of the module.

[0073] A bolt group 14 is also provided on the main rod 12 of the connector 10. After the connector 10 is inserted into the module column 20, a self-compacting grouting material is poured into the grouting space in the module 20. Since the grouting operation is cast-in-place on site and the module connector 10 is completely wrapped after the grouting material solidifies, a tight connection between the module columns 20 is achieved while improving the stability of the overall structure.

[0074] The connection nodes of the utility model first adopt the form of self-locking and then grouting of the connecting parts 10, avoiding the process of reserving secondary operation space for traditional steel structure node bolt connection. The module unit can be directly prefabricated as a whole and then installed, which reduces the workload and improves work efficiency.

[0075] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0076] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0078] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0079] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A self-locking grouting connection structure for a steel structure modular building, wherein the steel structure modular building comprises a plurality of modules, wherein the modules comprise module columns (20) and module beams (21), wherein: It also includes a connecting piece (10), wherein the connecting piece (10) is inserted into the cavity of the adjacent module column (20) to connect the adjacent module columns (20); The connecting member (10) comprises: a main rod (12) and a plurality of elastic elements (13) arranged at equal intervals on the outer edge of the main rod (12) along the circumference of the main rod (12), wherein the elastic elements (13) are telescopically arranged on the main rod (12); A clamping hole (202) for inserting an elastic element (13) is provided on the side wall of the cavity, and an end of the elastic element (13) is inserted into the clamping hole (202) so that the module column (20) is fixedly connected to the connecting piece (10).

2. The self-locking grouting connection structure for steel structure modular building according to claim 1 is characterized in that: The elastic element (13) comprises a sleeve (132), a clamp (131) and a spring (133); one end of the sleeve (132) is fixedly connected to the main rod (12), and the other end of the sleeve (132) is connected to the clamp (131); The sleeve (132) has a cavity inside for arranging a spring (133); one end of the spring (133) is fixed to the bottom of the sleeve (132); the other end of the spring (133) is connected to the clamp (131) so that the clamp (131) can be telescopically arranged on the sleeve (132).

3. The self-locking grouting connection structure for steel structure modular building according to claim 1, characterized in that: An inner partition (206) for forming a grouting space is provided in the cavity, and the inner partition (206) is fixedly connected to the module column (20); A positioning groove (201) is provided on the inner side wall of the module column (20), and the positioning groove (201) is arranged along the center line of the side surface of the module column (20).

4. The self-locking grouting connection structure for steel structure modular building according to claim 3, characterized in that: The clamping hole (202) is arranged in the positioning groove (201) and is located in the grouting space.

5. The self-locking grouting connection structure for steel structure modular building according to claim 4, characterized in that: A main board (11) is provided in the middle of the main rod (12) and is fixedly connected to the main rod (12).

6. The self-locking grouting connection structure for steel structure modular building according to claim 5, characterized in that: The main board (11) and the inner partition (206) located above the connecting member (10) are both provided with grouting holes (204) and exhaust holes (205), the grouting holes (204) and the exhaust holes (205) are symmetrically distributed about the axis of the connecting member (10), and the grouting conduit is inserted into the grouting space through the grouting hole (204) so ​​that the grouting material (15) fills the grouting space.

7. The self-locking grouting connection structure for steel structure modular building according to claim 6, characterized in that: A conduit hole (203) is provided on the side wall above the inner partition (206) of the module column (20) connected to the upper end of the connecting piece (10), and the grouting conduit is inserted into the grouting space through the conduit hole (203) and the grouting hole (204) in sequence.

8. The self-locking grouting connection structure for steel structure modular building according to claim 1, characterized in that: A peg group (14) is also provided along the circumference of the main rod (12), and the peg group (14) is arranged in an array between two adjacent elastic elements (13).

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