Connecting structure of lightweight concrete prefabricated columns and fabricated building

Abstract

The utility model provides a connecting structure of a lightweight concrete prefabricated column and an assembly type building, and relates to the technical field of assembly type buildings, the connecting structure of the lightweight concrete prefabricated column comprises a first column body, a first plate body, a second column body, a second plate body and a connecting piece. The first plate body is sealed at one end of the first supporting piece, the second plate body is sealed at one end of the second supporting piece, and the second plate body and the first plate body are oppositely arranged. The connecting pieces are connected with the first plate body and the second plate body correspondingly, the opening directions of the multiple grouting sleeves all face the positioning columns, and each grouting sleeve is arranged on one positioning column in a sleeving mode and conducts grouting on the interior of the grouting sleeve. According to the connecting structure, the overall weight can be reduced, construction is convenient and fast, the first plate body and the second plate body play a role in isolation and protection, the damp-proof and corrosion-resistant performance is improved, the connecting structure is directly transported to a construction site to be installed, the joint strength is guaranteed, and then the construction efficiency and the construction quality of the connecting structure of the lightweight concrete prefabricated column are both considered.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically to a connection structure for lightweight precast concrete columns and prefabricated buildings. Background Technology

[0002] Island construction refers to infrastructure development activities on islands or coastal areas in the ocean. Concrete columns can be used for connection and support during island infrastructure construction. A common method for assembling concrete columns is to weld two columns together before pouring concrete. However, this method is difficult to implement, struggles to guarantee construction quality, involves a significant amount of wet work on-site, and has low construction efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a connection structure for lightweight precast concrete columns and an assembled building, which enables assembly and connection in the factory and direct transportation to the construction site for installation, ensuring the joint strength between the first column and the second column, thereby taking into account both the construction efficiency and construction quality of the connection structure for lightweight precast concrete columns.

[0004] The first aspect of this utility model provides a connection structure for a lightweight precast concrete column, the connection structure of which includes:

[0005] The first column is provided with multiple positioning columns and a hollow first support member;

[0006] The first plate is enclosed at one end of the first support member;

[0007] The second column is provided with multiple grouting sleeves and a hollow structure second support member;

[0008] The second plate is enclosed at one end of the second support member, and the second plate is disposed opposite to the first plate.

[0009] Connectors that connect the first plate and the second plate respectively;

[0010] The openings of the plurality of grouting sleeves are all oriented toward the positioning column. Each grouting sleeve is fitted onto one of the positioning columns and grout is injected into the grouting sleeve to connect the second column with the first column.

[0011] In one possible embodiment of this utility model, the first column and the second column are arranged along a first direction, and a gap is formed between the first column and the second column, and the gap is sealed.

[0012] In one possible embodiment of this invention, the second column is located above the first column.

[0013] In one possible embodiment of this utility model, the first plate is located between the first column and the second plate, and the second plate is located between the first plate and the second column.

[0014] In one possible embodiment of the present invention, the second column is provided with a plurality of openings, and the number of the connectors is plurality of, each of the connectors being able to extend into or out of the second column from one of the openings.

[0015] In one possible embodiment of this utility model, the opening direction of the opening is perpendicular to the centerline direction of the second support member.

[0016] In one possible embodiment of this utility model, the first plate is provided with a first mounting hole, the second plate is provided with a second mounting hole, and the connecting member is a connecting bolt. The connecting bolt passes through the first mounting hole and the second mounting hole in sequence, so that the first plate and the second plate are connected by the connecting bolt.

[0017] In one possible embodiment of this utility model, the number of positioning posts is four, and the four positioning posts are arranged around the first support member. Correspondingly, the number of grouting sleeves is four, and the four grouting sleeves are arranged around the second support member.

[0018] In one possible embodiment of this utility model, the centerline of the second support member is collinear with the centerline of the first support member.

[0019] The second aspect of this utility model provides a prefabricated building, including the connection structure of the lightweight precast concrete columns described in any of the above embodiments.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a connection structure for lightweight precast concrete columns and an assembled building. The hollow structure of the first support member can reduce the overall weight of the first column, and the hollow structure of the second support member can reduce the overall weight of the second column, making construction more convenient. The first plate and the second plate are used to close the ends of the first support member and the second support member, respectively, playing a role in isolation and protection, and improving the moisture-proof and corrosion-proof performance of the first column and the second column. The connector is used to connect the first plate and the second plate. After the grouting sleeve and the positioning column are correspondingly sleeved, grouting is performed, so that the first column and the second column can be assembled and connected in the factory and directly transported to the construction site for installation, ensuring the joint strength between the first column and the second column, and thus taking into account the construction efficiency and construction quality of the connection structure of lightweight precast concrete columns. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the connection structure of the lightweight precast concrete column provided in some embodiments of this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the connection structure of the lightweight precast concrete column provided in some embodiments of this utility model. Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of the second column of the connection structure of the lightweight precast concrete column provided in some embodiments of the present invention.

[0025] Explanation of key component symbols;

[0026] 100 - Connection structure of lightweight precast concrete column; 110 - First column; 111 - Positioning column; 112 - First support member; 120 - Second column; 121 - Grouting sleeve; 122 - Second support member; 123 - Opening; 130 - First plate; 140 - Second plate; 150 - Connector; X - First direction. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] refer to Figure 1 and Figure 2 As shown, an embodiment of this application provides a connection structure 100 for a lightweight precast concrete column, which includes a first column 110, a first plate 130, a second column 120, a second plate 140, and a connector 150.

[0035] Specifically, in combination Figure 1 and Figure 2 As shown, the first column 110 is provided with a plurality of positioning columns 111 and a hollow first support member 112, and the first plate 130 is closed at one end of the first support member 112. The second column 120 is provided with multiple grouting sleeves 121 and a hollow second support member 122. The second plate 140 is closed at one end of the second support member 122. The second plate 140 is arranged opposite to the first plate 130. The connector 150 connects the first plate 130 and the second plate 140 respectively. The hollow first support member 112 can reduce the overall weight of the first column 110, and the hollow second support member 122 can reduce the overall weight of the second column 120, making construction more convenient. The first plate 130 and the second plate 140 are used to close the ends of the first support member 112 and the second support member 122 respectively, playing a role in isolation and protection, and improving the moisture-proof and corrosion-proof performance of the first column 110 and the second column 120. The connector 150 is used to connect the first plate 130 and the second plate 140.

[0036] The openings 123 of the plurality of grouting sleeves 121 are all oriented towards the positioning column 111. Each grouting sleeve 121 is fitted onto one of the positioning columns 111 and grout is injected into the grouting sleeve 121 to connect the second column 120 with the first column 110. After the grouting sleeves 121 and the positioning columns 111 are fitted together, grout is injected, so that the first column 110 and the second column 120 can be assembled and connected in the factory and directly transported to the construction site for installation. This ensures the joint strength between the first column 110 and the second column 120, thereby taking into account both the construction efficiency and construction quality of the connection structure 100 of the lightweight precast concrete column.

[0037] It is understood that the grouting sleeve 121 is fitted onto the positioning column 111, and the matching grouting material relies on the bonding and interlocking action between the materials to achieve the connection and sealing between the positioning column 111 and the sleeve. For example, the positioning column 111 is a steel column. During construction, the steel column of the lower section is first inserted into the grouting sleeve 121 of the upper section. After adjustment and fixation, the grouting material is injected through the grouting hole to ensure that the grouting sleeve 121 is filled with grouting material and tightly engaged with the steel column. After the grouting material, grouting sleeve 121 and steel column are vibrated, compacted and cured, they form a structural component.

[0038] refer to Figures 1 to 3 As shown, the connection structure 100 of the lightweight precast concrete column has a first direction X. For example, the first direction X is taken as the height direction of the connection structure 100. It is understood that the above definitions are only for ease of understanding the relative positional relationships of the parts in the connection structure 100 of the lightweight precast concrete column and should not be construed as limiting this application.

[0039] In one embodiment, alternatively, such as Figure 1 As shown, the first column 110 and the second column 120 are arranged along the first direction X, and a gap is formed between the first column 110 and the second column 120. The gap is closed, that is, the first column 110 and the second column 120 are arranged along the height direction of the connection structure 100 of the lightweight precast concrete column. The gap between the first column 110 and the second column 120 is used during the connection and installation of the first column 110 and the second column 120 to facilitate fine adjustment and leveling of the first column 110 and the second column 120, ensuring that there is a certain adjustment space between them, improving the accuracy of installation, and facilitating the installation of the connection structure 100 of the lightweight precast concrete column.

[0040] In one embodiment, alternatively, referencing Figure 1 and Figure 2 As shown, the first plate 130 is located between the first column 110 and the second plate 140, and the second plate 140 is located between the first plate 130 and the second column 120. In other words, the second column 120, the second plate 140, the first plate 130 and the first column 110 are arranged sequentially along the first direction X. The second plate 140 and the first plate 130 are used to separate and support the second column 120 and the first column 110, respectively. The column and plate are connected by cast-in-place concrete joints to ensure shear force transmission.

[0041] Installation method of the connection structure 100 for lightweight precast concrete columns: The first column 110 and the second column 120 are hoisted. The first column 110 and the second column 120 can be manually transported or hoisted to the preset position using small equipment. The positioning column 111 extending from the upper end of the first column 110 is inserted into the grouting sleeve 121 of the second column 120. Column positioning and leveling: Workers use a positioning instrument and a plumb bob to align and level the columns. The joint between the first column 110 and the second column 120 is connected to the first plate 130 and the second plate 140. The gaps around the node are sealed with mortar. After the grouting material has reached the required strength, the grouting sleeve 121 is grouted at the four corners of the node between the first column 110 and the second column 120. After grouting, the connection structure 100 of the lightweight precast concrete column is cured to ensure that the grouting material reaches the design strength. The curing time is usually 7 to 14 days. In addition, the curing time is determined according to the specific situation. The connection structure 100 of the lightweight precast concrete column is prefabricated in the factory and transported to the construction site for assembly and use to avoid wet work on the construction site and reduce the difficulty of construction.

[0042] In summary, the hollow structure of the first support member 112 of the lightweight precast concrete column connection structure 100 reduces the overall weight of the first column 110, and the hollow structure of the second support member 122 reduces the overall weight of the second column 120, making construction more convenient. The first plate 130 and the second plate 140 are used to close the ends of the first support member 112 and the second support member 122, respectively, playing a role in isolation and protection, and improving the moisture-proof and corrosion-proof performance of the first column 110 and the second column 120. The connector 150 is used to connect the first plate 130 and the second plate 140. After the grouting sleeve 121 and the positioning column 111 are correspondingly sleeved, grouting is performed, so that the first column 110 and the second column 120 can be assembled and connected in the factory and directly transported to the construction site for installation, ensuring the joint strength between the first column 110 and the second column 120, thereby taking into account both the construction efficiency and construction quality of the lightweight precast concrete column connection structure 100.

[0043] refer to Figures 1 to 3 As shown, an embodiment of this application provides another connection structure 100 for lightweight precast concrete columns, which includes a first column 110, a first plate 130, a second column 120, a second plate 140, and a connector 150.

[0044] Specifically, in combination Figure 1 and Figure 2As shown, the first column 110 is provided with a plurality of positioning columns 111 and a hollow first support member 112, and the first plate 130 is closed at one end of the first support member 112. The second column 120 is provided with a plurality of grouting sleeves 121 and a hollow second support member 122, and the second plate 140 is closed at one end of the second support member 122. The second plate 140 is disposed opposite to the first plate 130, and the connecting member 150 connects the first plate 130 and the second plate 140 respectively. The openings 123 of the plurality of grouting sleeves 121 all face the positioning post 111. Each grouting sleeve 121 is fitted onto one of the positioning posts 111 and grout is injected into the grouting sleeve 121 to connect the second post 120 with the first post 110. The hollow structure of the first support member 112 can reduce the overall weight of the first post 110, and the hollow structure of the second support member 122 can reduce the overall weight of the second post 120, making construction more convenient. The first plate 130 and the second plate 140 are respectively used to close the first support member 112. The ends of the first column 110 and the second support 122 serve as isolation and protection, improving the moisture-proof and corrosion-proof performance of the first column 110 and the second column 120. The connector 150 is used to connect the first plate 130 and the second plate 140. After the grouting sleeve 121 and the positioning column 111 are fitted together, grouting is performed, so that the first column 110 and the second column 120 can be assembled and connected in the factory and directly transported to the construction site for installation, ensuring the joint strength between the first column 110 and the second column 120, thereby taking into account the construction efficiency and construction quality of the connection structure 100 of the lightweight precast concrete column.

[0045] In one embodiment, alternatively, such as Figure 1 As shown, the first column 110 and the second column 120 are arranged along the first direction X, and a gap is formed between the first column 110 and the second column 120. The gap is sealed, that is, the first column 110 and the second column 120 are arranged along the height direction of the connection structure 100 of the lightweight precast concrete column. The gap between the first column 110 and the second column 120 is used during the connection and installation of the first column 110 and the second column 120 to facilitate fine adjustment and leveling of the first column 110 and the second column 120, ensuring that there is a certain adjustment space between them, improving the accuracy of installation, and facilitating the installation of the connection structure 100 of the lightweight precast concrete column.

[0046] Further, refer to Figure 1 and Figure 2As shown, the second column 120 is located above the first column 110, and the axis of the second column 120 is collinear with the axis of the first column 110. This ensures that vertical loads (such as the self-weight of the second column 120 and structural loads) are transmitted through the axis of the first column 110, avoiding structural safety hazards caused by eccentric forces and providing a precise installation reference.

[0047] In one embodiment, alternatively, referencing Figure 1 and Figure 2 As shown, the first plate 130 is located between the first column 110 and the second plate 140, and the second plate 140 is located between the first plate 130 and the second column 120. In other words, the second column 120, the second plate 140, the first plate 130 and the first column 110 are arranged sequentially along the first direction X. The second plate 140 and the first plate 130 are used to separate and support the second column 120 and the first column 110, respectively. The column and plate are connected by cast-in-place concrete joints to ensure shear force transmission.

[0048] Optionally, refer to Figure 1 As shown, the second column 120 is provided with multiple openings 123, and the number of connectors 150 is also multiple. Each connector 150 can extend into or out of the second column 120 through one of the openings 123. The connectors 150 extend into or out of the second column 120 through the openings 123, and the second plate 140 and the first plate 130 are quickly connected or separated through the connectors 150, ensuring the stability of the overall structure. For example, there are four openings 123, and correspondingly four connectors 150.

[0049] Optionally, the opening 123 is perpendicular to the centerline of the second support 122. Correspondingly, the centerline of the second support 122 is a first direction X, and the opening 123 is perpendicular to the first direction X, so that the opening 123 is located on the side of the second column 120, and the shape and size of the opening 123 match the size and shape of the connector 150. For example, the opening 123 may be rectangular or semi-circular.

[0050] Optionally, the first plate 130 is provided with a first mounting hole, and the second plate 140 is provided with a second mounting hole. The connector 150 is a connecting bolt, which is sequentially inserted into the first mounting hole and the second mounting hole so that the first plate 130 and the second plate 140 are connected by the connecting bolt. The first mounting hole of the first plate 130 and the second mounting hole of the second plate 140 are fastened by the connecting bolt. The connecting bolt enables the detachable fixing between the first plate 130 and the second plate 140, and transmits load and constrains displacement.

[0051] In one embodiment, alternatively, referencing Figure 2 and Figure 3 As shown, there are four positioning posts 111, which are arranged around the first support member 112. Correspondingly, there are four grouting sleeves 121, which are arranged around the second support member 122. The positioning posts 111 and the grouting sleeves 121 correspond one-to-one. The four sets of positioning posts 111 and grouting sleeves 121 form a circumferential constraint, which ensures the precise alignment and multi-directional rigid connection between the first column 110 and the second column 120, improves the bending moment resistance, and ensures the overall mechanical balance.

[0052] Optionally, refer to Figure 1 As shown, the center line of the second support member 122 is collinear with the center line of the first support member 112. The hollow structure of the second support member 122 corresponds to the hollow structure of the first support member 112, which reduces the amount of material used, reduces the overall weight, and avoids affecting and hindering the grouting process of the steel sleeve, thus achieving better technical results.

[0053] An embodiment of this utility model also provides a prefabricated building, including the lightweight precast concrete column connection structure 100 in the above embodiment. The prefabricated building including the lightweight precast concrete column connection structure 100 has all the beneficial effects of the lightweight precast concrete column connection structure 100, which will not be described in detail here.

[0054] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0055] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A connection structure for a lightweight precast concrete column, characterized in that, include: The first column is provided with multiple positioning columns and a hollow first support member; The first plate is enclosed at one end of the first support member; The second column is provided with multiple grouting sleeves and a hollow structure second support member; The second plate is enclosed at one end of the second support member, and the second plate is disposed opposite to the first plate. Connectors that connect the first plate and the second plate respectively; The openings of the plurality of grouting sleeves are all oriented toward the positioning column. Each grouting sleeve is fitted onto one of the positioning columns and grout is injected into the grouting sleeve to connect the second column with the first column.

2. The connection structure of the lightweight precast concrete column according to claim 1, characterized in that, The first column and the second column are arranged along a first direction, and a gap is formed between the first column and the second column, and the gap is sealed.

3. The connection structure of the lightweight precast concrete column according to claim 2, characterized in that, The second column is located above the first column.

4. The connection structure of the lightweight precast concrete column according to claim 1, characterized in that, The first plate is located between the first column and the second plate, and the second plate is located between the first plate and the second column.

5. The connection structure for lightweight precast concrete columns according to claim 4, characterized in that, The second column is provided with multiple openings, and there are multiple connectors, each of which can extend into or out of the second column from one of the openings.

6. The connection structure of the lightweight precast concrete column according to claim 5, characterized in that, The opening direction of the opening is perpendicular to the centerline direction of the second support member.

7. The connection structure of the lightweight precast concrete column according to claim 4, characterized in that, The first plate has a first mounting hole, and the second plate has a second mounting hole. The connecting member is a connecting bolt, which passes through the first mounting hole and the second mounting hole in sequence, so that the first plate and the second plate are connected by the connecting bolt.

8. The connection structure for lightweight precast concrete columns according to any one of claims 1 to 7, characterized in that, The number of positioning posts is four, and the four positioning posts are arranged around the first support member. Correspondingly, the number of grouting sleeves is four, and the four grouting sleeves are arranged around the second support member.

9. The connection structure for lightweight precast concrete columns according to any one of claims 1 to 7, characterized in that, The centerline of the second support member is collinear with the centerline of the first support member.

10. A prefabricated building, characterized in that, The connection structure includes the lightweight precast concrete column as described in any one of claims 1 to 9.

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