Dry-type connecting joint of column and foundation

Abstract

The utility model relates to a dry type connecting joint of a column and a foundation. The dry type connecting joint comprises a prefabricated column, a prefabricated foundation and a profile steel assembly. The profile steel assembly comprises embedded profile steel embedded in the prefabricated column and the prefabricated foundation. The pre-embedded profile steel comprises a pre-embedded part and a flange plate connected with the pre-embedded part, and the pre-embedded part comprises a pre-embedded steel plate and studs; the prefabricated column or the prefabricated foundation comprises vertical steel bars, the embedded steel plate is welded to the vertical steel bars, and the multiple studs are connected to the side face of the embedded steel plate and extend towards the center of the prefabricated column or the prefabricated foundation. The flange plate abuts against the end face of the prefabricated column or the prefabricated foundation, and the flange plate comprises a skirt edge extending towards the outer side of the prefabricated column or the prefabricated foundation. The two flange plates abut against each other, and the skirt edges are bolted. On-site wet operation is not needed, the construction time is greatly shortened, the construction efficiency is improved, and the stability of a connecting area is high.

Description

Technical Field

[0001] The present application relates to the technical field of prefabricated buildings, and in particular to a dry connection node between a column and a foundation. Background Art

[0002] Since the on-site construction speed of prefabricated buildings is fast and efficient, it can minimize pollution to the environment and has been widely used in various construction scenarios. The utility model with announcement number CN210289267U discloses an assembled platform canopy, whose columns and foundations are all prefabricated structures and are connected by grouting sleeves. This type of prefabricated structure still requires wet operations, and temporary support structures need to be set up to support the columns during the concrete pouring and curing process. Due to the need for wet operations and the need to set up temporary supports, the on-site construction operation time is still long, the workload is large, and the construction efficiency is affected. Utility Model Content

[0003] Based on this, it is necessary to provide a dry connection node between the column and the foundation, and its specific technical solution is as follows.

[0004] A dry connection node between a column and a foundation, comprising: a prefabricated column, a prefabricated foundation and a steel section assembly; the steel section assembly comprises embedded steel sections embedded in the prefabricated column and the prefabricated foundation respectively; the embedded steel section comprises an embedded portion and a flange plate connected to the embedded portion, the embedded portion comprises an embedded steel plate and bolts; the prefabricated column or prefabricated foundation comprises vertical steel bars, the embedded steel plate is welded to the vertical steel bars, and a plurality of bolts are connected to the side faces of the embedded steel plates and extend toward the center of the prefabricated column or prefabricated foundation; the flange plate abuts against the end face of the prefabricated column or prefabricated foundation, and the flange plate comprises a skirt extending outward from the prefabricated column or prefabricated foundation; the two flange plates abut against each other and the skirts are bolted.

[0005] Furthermore, the vertical steel bars are surrounded to form a steel cage; the embedded part includes four embedded steel plates, which are surrounded to form a rectangular shape and are respectively welded to the vertical steel bars around the steel cage.

[0006] Furthermore, at least two rows of bolt groups are connected to the embedded steel plate, and each row of bolt groups includes a plurality of bolts arranged in a vertical direction.

[0007] Furthermore, the side surfaces of the embedded steel plate are connected with reinforcing ribs, and the reinforcing ribs extend to the edge of the skirt.

[0008] Furthermore, a positioning groove is provided at the center of the flange plate; the steel section assembly also includes a positioning column, the end of the positioning column is provided with a guide arc surface, and the two ends of the positioning column are respectively inserted into the positioning grooves of the two flange plates.

[0009] Furthermore, a plurality of positioning clamping plates arranged along the circumferential direction are provided at the bottom of the positioning groove, and a positioning clamping groove cooperating with the positioning clamping plates is provided at the end of the positioning column.

[0010] Furthermore, a plurality of bolt holes are evenly arranged around the center of the skirt of the flange plate.

[0011] Beneficial Effects: The dry-type connection node between columns and foundations provided by this utility model utilizes embedded steel sections within the prefabricated columns and prefabricated foundations, allowing direct bolting of the flange plates of the embedded steel sections. This eliminates the need for wet work on-site and the need for temporary support structures, significantly shortening construction time and improving efficiency. By welding the embedded steel plates to the vertical rebar and installing bolts, the bonding strength and shear resistance of the embedded steel sections to the prefabricated columns or prefabricated foundations are enhanced, ensuring the stability of the connection area. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] Figure 1 A schematic diagram of connecting nodes;

[0014] Figure 2 This is a perspective diagram of a precast column;

[0015] Figure 3 It is a structural diagram of embedded steel;

[0016] Figure 4 This is a schematic diagram of the exploded steel components.

[0017] Explanation of reference numerals: 1. Prefabricated column; 2. Prefabricated foundation; 3. Steel section assembly; 4. Embedded steel section; 5. Positioning column;

[0018] 11. Vertical reinforcement;

[0019] 41. Flange plate; 42. Embedded steel plate; 43. Stud; 44. Skirt; 45. Bolt hole; 46. Reinforcement rib; 47. Positioning groove; 48. Positioning clamp;

[0020] 51. Positioning slot; 52. Guide arc surface. DETAILED DESCRIPTION

[0021] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0024] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0025] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0027] Example

[0028] Reference Figure 1 As shown, this embodiment provides a dry connection node between a column and a foundation, comprising a precast column 1, a precast foundation 2, and a steel section assembly 3. In this embodiment, the precast column 1 and the precast foundation 2 are both reinforced concrete precast parts, which are prefabricated outside the construction site and transported to the construction site for assembly.

[0029] Specifically, refer to Figure 2 and Figure 3 As shown, the steel section assembly 3 includes two embedded steel sections 4, one of which is embedded in the prefabricated column 1, and the other is embedded in the prefabricated foundation 2. Since the two embedded steel sections 4 have the same structure, the embedded steel section 4 in the prefabricated column 1 is mainly used as an example in this embodiment.

[0030] The embedded steel section 4 includes an embedded portion and a flange plate 41 connected to the embedded portion, wherein the embedded portion includes an embedded steel plate 42 and studs 43. Both the precast column 1 and the precast foundation 2 include vertical steel bars 11, to which the embedded steel plate 42 is welded. Multiple studs 43 are connected to the sides of the embedded steel plate 42 and extend toward the center of the precast column 1 or precast foundation 2. The flange plate 41 abuts the end face of the precast column 1 or precast foundation 2 and includes a skirt 44 extending outward from the precast column 1 or precast foundation 2. The two flange plates 41 abut each other, and the skirts 44 are bolted together.

[0031] This embodiment provides a dry-type connection between columns and foundations. By installing pre-embedded steel sections 4 within the precast columns 1 and precast foundations 2, and directly bolting the flange plates 41 of the pre-embedded steel sections 4, this eliminates the need for on-site wet work and temporary support structures, significantly shortening construction time and improving efficiency. By welding the pre-embedded steel plates 42 to the vertical rebar 11 and installing studs 43, the bond strength and shear resistance between the pre-embedded steel sections 4 and the precast columns 1 or precast foundations 2 are enhanced, ensuring the stability of the connection area.

[0032] Specifically, refer to Figure 2As shown, the vertical steel bars 11 are surrounded by a steel cage; the embedded portion includes four embedded steel plates 42, which are surrounded by a rectangular shape and are welded to the vertical steel bars 11 around the steel cage. This increases the connection strength between the embedded steel plates 42 and the prefabricated column 1 or prefabricated foundation 2.

[0033] Specifically, continue to refer to Figure 3 As shown, each embedded steel plate 42 is connected to two rows of bolts 43 , and each row of bolts 43 includes a plurality of bolts 43 arranged in a vertical direction.

[0034] Specifically, refer to Figure 1 and Figure 3 As shown, the side of the embedded steel plate 42 is connected to a reinforcing rib 46, which extends to the edge of the skirt 44, that is, extends outward from the precast column 1 or precast foundation 2. The provision of the reinforcing rib 46 further enhances the shear resistance of the connection node and improves the stability of the connection between the precast column 1 and the precast foundation 2.

[0035] Specifically, refer to Figure 3 As shown, the flange plate 41 is provided with a positioning groove 47 at its center. The section steel assembly 3 also includes a positioning column 5, each end of which is provided with a guide arc 52. Both ends of the positioning column 5 are inserted into the positioning grooves 47 of the two flange plates 41. During assembly, the positioning column 5 is first inserted into the positioning groove 47 on the precast foundation 2. During hoisting, the guiding arc 52 guides the positioning column 5 into the positioning groove 47 of the precast column 1, thereby achieving center positioning between the precast column 1 and the precast foundation 2.

[0036] Specifically, the bottom of the positioning groove 47 is provided with a plurality of circumferentially arranged positioning clips 48. The ends of the positioning columns 5 are provided with positioning slots 51 that mate with the positioning clips 48. Multiple bolt holes 45 are evenly distributed around the center of the skirt 44 of the flange plate 41. The positioning slots 51 mate with the positioning clips 48 to achieve precise positioning of the precast column 1 and the precast foundation 2, ensuring alignment of the bolt holes 45 on the skirt 44 and bolting the two skirts 44.

[0037] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A dry connection node between a column and a foundation, characterized in that: include: Prefabricated columns, prefabricated foundations and steel section assemblies; the steel section assemblies include embedded steel sections embedded in the prefabricated columns and prefabricated foundations respectively; the embedded steel sections include embedded parts and flange plates connected to the embedded parts, the embedded parts include embedded steel plates and studs; the prefabricated columns or prefabricated foundations include vertical steel bars, the embedded steel plates are welded to the vertical steel bars, and a plurality of studs are connected to the sides of the embedded steel plates and extend to the center of the prefabricated columns or prefabricated foundations; the flange plates abut against the end faces of the prefabricated columns or prefabricated foundations, and the flange plates include skirts extending outward from the prefabricated columns or prefabricated foundations; the two flange plates abut against each other and the skirts are bolted.

2. A dry connection node between a column and a foundation according to claim 1, characterized in that: The vertical steel bars are surrounded to form a steel cage; the embedded part includes four embedded steel plates, which are surrounded to form a rectangular shape and are respectively welded to the vertical steel bars around the steel cage.

3. A dry connection node between a column and a foundation according to claim 2, characterized in that: At least two rows of bolt groups are connected to the embedded steel plate, and each row of bolt groups includes a plurality of bolts arranged in a vertical direction.

4. A dry connection node between a column and a foundation according to claim 3, characterized in that: The side surfaces of the embedded steel plates are connected with reinforcing ribs, and the reinforcing ribs extend to the edges of the skirts.

5. A dry connection node between a column and a foundation according to claim 1, characterized in that: A positioning groove is provided at the center of the flange plate; the steel section assembly further comprises a positioning column, the end of which is provided with a guide arc surface, and both ends of the positioning column are respectively inserted into the positioning grooves of the two flange plates.

6. A dry connection node between a column and a foundation according to claim 5, characterized in that: A plurality of positioning clamping plates arranged along the circumferential direction are provided at the bottom of the positioning groove, and a positioning clamping groove cooperating with the positioning clamping plates is provided at the end of the positioning column.

7. A dry connection node between a column and a foundation according to claim 1, characterized in that: A plurality of bolt holes are evenly arranged on the skirt of the flange plate around the center.

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