High-strength joint connecting structure of assembly type column base

Abstract

The high-strength joint connecting structure of the assembly type column foot comprises an aluminum alloy column, a steel structure column foot and a column bottom stainless steel connecting piece arranged between the aluminum alloy column and the steel structure column foot, and the lower end of the aluminum alloy column is located on the upper end face of the column bottom stainless steel connecting piece. The aluminum alloy column is detachably and fixedly connected with the upper end of the column bottom stainless steel connecting piece into a whole through a plurality of aluminum connecting pieces, the lower end of the steel structure column foot is embedded in a foundation, and the upper end of the steel structure column foot is detachably and fixedly connected with the column bottom stainless steel connecting piece and the aluminum connecting pieces into a whole through a plurality of sets of connecting assemblies fixed to the upper end face. The stainless steel connecting piece is arranged between the aluminum alloy column and the steel structure column base, so that the problems of oxidation and corrosion caused by chemical reaction due to direct contact between the aluminum alloy column and the steel structure column base are avoided, the load transmission path of the connecting node is clear and definite, the connection is safe and reliable, the construction is convenient and rapid, and the efficiency is high; the three parts of components made of different materials can be spliced on site and connected firmly.

Description

Technical Field

[0001] The utility model belongs to the technical field of building components, and in particular relates to a high-strength node connection structure of an assembled column foot. Background Art

[0002] As the country continues to vigorously promote the development of prefabricated buildings, the requirements for building assembly rates are constantly increasing. In the future, we will see more and more prefabricated columns used in actual prefabricated buildings. For aluminum alloy structural buildings, in addition to considering the main structural construction, special consideration should be given to the connection between aluminum alloy and steel structure column bases. When aluminum alloy and steel plate are in direct contact, a chemical reaction will occur, causing oxidation and corrosion. When aluminum alloy and steel plate are in contact for a long time in a humid environment, an oxide layer will gradually form on the aluminum surface, and rust and corrosion will appear on the steel plate surface, seriously affecting the overall strength and connection quality of the column base. Therefore, in order to solve the above technical problems, it is indeed necessary to provide a high-strength node connection structure for prefabricated column bases to overcome the above defects in the prior art. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a high-strength node connection structure of an assembled column base, by arranging a stainless steel connector between the aluminum alloy column and the steel structure column base, and detachably fixing the aluminum alloy column and the stainless steel connector as well as the stainless steel connector and the steel structure column base together by a plurality of aluminum connectors and connection assemblies, thereby avoiding the problem of oxidation and corrosion caused by chemical reaction due to direct contact between the aluminum alloy column and the steel structure column base, so that the load transfer path of the connection node is clear and definite, the connection is safe and reliable, the construction is convenient and fast, the efficiency is high, and the components of the three parts made of different materials can be assembled on site and the connection is tight.

[0004] The technical solution adopted by the utility model: a high-strength node connection structure of an assembled column foot, comprising an aluminum alloy column, a steel structure column foot and a column bottom stainless steel connecting piece arranged between the aluminum alloy column and the steel structure column foot, the lower end of the aluminum alloy column is located at the upper end surface of the column bottom stainless steel connecting piece, and the aluminum alloy column is detachably fixedly connected to the upper end of the column bottom stainless steel connecting piece through multiple aluminum connecting pieces, the lower end of the steel structure column foot is pre-buried in the foundation, and the upper end of the steel structure column foot is detachably fixedly connected to the column bottom stainless steel connecting piece and the aluminum connecting piece through multiple groups of connecting components fixed to the upper end surface.

[0005] Among them, the stainless steel connecting piece at the bottom of the column includes a π-shaped connecting piece formed by a stainless steel base plate and a connecting plate fixed to the bottom surface of the stainless steel base plate. The lower end of the aluminum alloy column is centrally arranged on the upper end surface of the stainless steel base plate, and the aluminum alloy column and the stainless steel base plate are fixedly connected as one through a plurality of aluminum connecting pieces arranged on the outside of the aluminum alloy column.

[0006] Furthermore, the aluminum connecting part includes an angle aluminum arranged outside the side wall of the lower end of the aluminum alloy column, the vertical edge of the angle aluminum is in contact with the side wall of the lower end of the aluminum alloy column, and the aluminum alloy column and the vertical edge of the angle aluminum are detachably fixed as a whole through bolts and nuts adapted to be connected to the bolts, and the horizontal edge of the angle aluminum is in contact with the stainless steel bottom plate, and the horizontal edge of the angle aluminum is detachably fixed to the stainless steel bottom plate and the upper end of the connecting assembly through bolts and nuts adapted to be connected to the bolts.

[0007] Furthermore, the aluminum connecting part includes an angle aluminum arranged outside the side wall of the lower end of the aluminum alloy column, a connecting plate with its lower end fixed to the upper end surface of the stainless steel bottom plate is vertically arranged on the inner side of the aluminum alloy column, and the upper end of the connecting plate is fixedly connected to the side wall of the aluminum alloy column by bolts and nuts adapted to be connected to the bolts, the vertical edge of the angle aluminum is in contact with the side wall of the lower end of the aluminum alloy column, and the connecting plate, the aluminum alloy column and the vertical edge of the angle aluminum are detachably fixedly connected to each other by bolts and nuts adapted to be connected to the bolts, and the horizontal edge of the angle aluminum is in contact with the stainless steel bottom plate, and the horizontal edge of the angle aluminum is detachably fixedly connected to the stainless steel bottom plate and the upper end of the connecting assembly by bolts and nuts adapted to be connected to the bolts.

[0008] Furthermore, the connecting assembly includes a shear-resistant channel steel located on the outside of the connecting plate, the opening of the shear-resistant channel steel is set outward, and the lower plate surface of the shear-resistant channel steel is fixed to the upper end surface of the steel structure column base, the upper plate surface of the shear-resistant channel steel is in contact with the bottom surface of the stainless steel bottom plate, and the horizontal edge of the angle aluminum, the stainless steel bottom plate and the upper plate surface of the shear-resistant channel steel are fixedly connected by bolts and nuts adapted to be connected to the bolts, the side plates of the shear-resistant channel steel, the connecting plates and the upper end plates of the steel structure column base are fixedly connected by bolts and nuts adapted to be connected to the bolts, and the lower edge of the connecting plate is not lower than the upper end surface of the steel structure column base.

[0009] Furthermore, the steel structure column base includes an inverted π-shaped structure formed by a column bottom steel base plate and a vertical plate fixed to the upper end surface of the column bottom steel base plate. The column bottom steel base plate is fixedly connected to the upper ends of multiple column base anchor bolts whose lower ends are pre-embedded in the foundation, and a shear-resistant part is fixed to the middle part of the bottom surface of the column bottom steel base plate.

[0010] The advantages of this utility model compared with the prior art:

[0011] 1. This technical solution sets a stainless steel connector between the aluminum alloy column and the steel structure column foot, and uses multiple aluminum connectors and connection components to detachably connect the aluminum alloy column and the stainless steel connector, as well as the stainless steel connector and the steel structure column foot, to avoid the problem of oxidation and corrosion caused by chemical reaction due to direct contact between the aluminum alloy column and the steel structure column foot, so that the load transfer path of the connection node is clear and definite;

[0012] 2. This technical solution uses aluminum connectors to detachably connect the aluminum alloy column and the stainless steel base plate, and uses shear-resistant channel steel and vertical plates to detachably connect the connecting plate fixed to the bottom surface of the stainless steel base plate and the steel base plate at the bottom of the column, ensuring that the chemical properties of each part are stable, and improving the strength and connection reliability of the connection node;

[0013] 3. This technical solution has a simple structure, novel design, safe and reliable connection, convenient and fast construction, high efficiency, and the three parts of components made of different materials can be assembled on site, with tight connections and high safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of the utility model;

[0015] Figure 2 This is another structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] The following will be combined with the embodiment of the present utility model Figure 1-2 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0018] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0019] High-strength node connection structure of assembled column base, such as Figure 1-2 As shown, it includes an aluminum alloy column 1, a steel structure column foot 3 and a column bottom stainless steel connector 2 arranged between the aluminum alloy column 1 and the steel structure column foot 3, the lower end of the aluminum alloy column 1 is located at the upper end surface of the column bottom stainless steel connector 2, and the aluminum alloy column 1 is detachably fixedly connected to the upper end of the column bottom stainless steel connector 2 through multiple aluminum connectors, the lower end of the steel structure column foot 3 is pre-buried in the foundation, and the upper end of the steel structure column foot 3 is detachably fixedly connected to the column bottom stainless steel connector 2 and the aluminum connector through multiple groups of connection components fixed to the upper end surface; in the above structure, by arranging the stainless steel connector 2 between the aluminum alloy column 1 and the steel structure column foot 3, and by using multiple aluminum connectors and connection components to detachably fix the aluminum alloy column 1 and the stainless steel connector 2 as well as the stainless steel connector 2 and the steel structure column foot 3 as a whole, the problem of oxidation and corrosion caused by chemical reaction due to direct contact between the aluminum alloy column 1 and the steel structure column foot 3 is avoided, so that the load transfer path of the connection node is clear and definite;

[0020] The specific structure of the column bottom stainless steel connector 2 is as follows: the column bottom stainless steel connector 2 includes a π-shaped connector formed by a stainless steel bottom plate 2-1 and a connecting plate 2-2 fixed to the bottom surface of the stainless steel bottom plate 2-1; the lower end of the aluminum alloy column 1 is centered on the upper end surface of the stainless steel bottom plate 2-1, and the aluminum alloy column 1 and the stainless steel bottom plate 2-1 are fixedly connected as a whole through a plurality of aluminum connectors arranged on the outside of the aluminum alloy column 1.

[0021] like Figure 1 As shown, the specific structure of the first embodiment of the aluminum connector is as follows: the aluminum connector includes an aluminum angle 4 arranged outside the side wall of the lower end of the aluminum alloy column 1, the vertical edge of the aluminum angle 4 contacts the side wall of the lower end of the aluminum alloy column 1, and the aluminum alloy column 1 and the vertical edge of the aluminum angle 4 are detachably fixedly connected as a whole through bolts and nuts adapted to the bolts, and the horizontal edge of the aluminum angle 4 contacts the stainless steel bottom plate 2-1, and the horizontal edge of the aluminum angle 4 is detachably fixedly connected to the stainless steel bottom plate 2-1 and the upper end of the connecting component through bolts and nuts adapted to the bolts;

[0022] like Figure 2As shown, the specific structure of the second embodiment of the aluminum connecting piece is as follows: the aluminum connecting piece includes an angle aluminum 4 arranged outside the side wall of the lower end of the aluminum alloy column 1, and a connecting plate 7 with a lower end fixed to the upper end surface of the stainless steel bottom plate 2-1 is vertically arranged on the inner side of the aluminum alloy column 1, and the upper end of the connecting plate 7 is fixedly connected to the side wall of the aluminum alloy column 1 by bolts and nuts adapted to the bolts. The vertical edge of the angle aluminum 4 contacts the side wall of the lower end of the aluminum alloy column 1, and the connecting plate 7, the aluminum alloy column 1 and the vertical edge of the angle aluminum 4 are detachably fixedly connected to each other through bolts and nuts adapted to the bolts. The horizontal edge of the angle aluminum 4 contacts the stainless steel bottom plate 2-1, and the horizontal edge of the angle aluminum 4 is detachably fixedly connected to the stainless steel bottom plate 2-1 and the upper end of the connecting component by bolts and nuts adapted to the bolts.

[0023] The specific structure of the connecting component is as follows: the connecting component includes a shear-resistant channel steel 5 located on the outside of the connecting plate 2-2, the opening of the shear-resistant channel steel 5 is set outward, and the lower plate surface of the shear-resistant channel steel 5 is fixed to the upper end surface of the steel structure column foot 3, the upper plate surface of the shear-resistant channel steel 5 is in contact with the bottom surface of the stainless steel bottom plate 2-1, and the horizontal edge of the angle aluminum 4, the stainless steel bottom plate 2-1 and the upper plate surface of the shear-resistant channel steel 5 are fixedly connected by bolts and nuts adapted to the bolts, the side plates of the shear-resistant channel steel 5, the connecting plate 2-2 and the vertical plates 3-3 on the upper end plate surface of the column bottom steel bottom plate 3-1 are fixedly connected by bolts and nuts adapted to the bolts, and the lower edge of the connecting plate 2-2 is not lower than the upper end surface of the column bottom steel bottom plate 3-1.

[0024] In the above structure, aluminum connectors are used to detachably connect the aluminum alloy column 1 and the stainless steel base plate 2-1, and shear-resistant channel steels 5 are used to detachably connect the connecting plate 2-2 fixed to the bottom surface of the stainless steel base plate 2-1 and the steel structure column foot 3, thereby improving the strength and connection reliability of the connection node under the premise of ensuring the stability of the chemical properties of each part; the axial force of the aluminum alloy column 1 increases from small to large along the column direction, and the axial force increases toward the root, and the stainless steel connector 2 is required to effectively connect the upper and lower structures, the aluminum alloy column 1 and the stainless steel base plate 2-1 are fixedly connected with the fastening angle aluminum 4, the stainless steel base plate 2-1 and the steel structure column foot 3 are fixedly connected with the shear-resistant channel steels 5, and the steel structure column foot 3 of the embedded steel structure is used to disperse the load and ensure that the column does not lose stability under heavy pressure.

[0025] The specific structure of the steel structure column foot 3 is as follows: the steel structure column foot 3 includes an inverted π-shaped structure formed by a column bottom steel base plate 3-1 and a vertical plate 3-3 fixed to the upper end surface of the column bottom steel base plate 3-1, the column bottom steel base plate 3-1 is fixedly connected to the upper ends of multiple column foot anchor bolts 3-2 whose lower ends are pre-embedded in the foundation, and a shear member 6 is fixed to the middle part of the bottom surface of the column bottom steel base plate 3-1, wherein the upper plane of the column bottom steel base plate 3-1 is flush with the foundation, and the setting of the shear member 6 embedded in the foundation is conducive to resisting the shear force of the column bottom, preventing slippage between the column bottom steel base plate 3-1 and the foundation, and limiting displacement.

[0026] This technical solution has a simple structure, novel design, safe and reliable connection, convenient and fast construction, high efficiency, and the three parts of components made of different materials can be assembled on site, with tight connections and high safety and reliability.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The high-strength node connection structure of the assembled column foot is characterized by: The invention comprises an aluminum alloy column (1), a steel structure column foot (3), and a column bottom stainless steel connector (2) arranged between the aluminum alloy column (1) and the steel structure column foot (3); the lower end of the aluminum alloy column (1) is located on the upper end surface of the column bottom stainless steel connector (2), and the aluminum alloy column (1) is detachably fixedly connected to the upper end of the column bottom stainless steel connector (2) via a plurality of aluminum connectors; the lower end of the steel structure column foot (3) is pre-buried in the foundation, and the upper end of the steel structure column foot (3) is detachably fixedly connected to the column bottom stainless steel connector (2) and the aluminum connector via a plurality of connection components fixed to the upper end surface.

2. The high-strength node connection structure of the assembled column foot according to claim 1 is characterized in that: The column bottom stainless steel connector (2) comprises a π-shaped connector formed by a stainless steel bottom plate (2-1) and a connecting plate (2-2) fixed to the bottom surface of the stainless steel bottom plate (2-1); the lower end of the aluminum alloy column (1) is centrally arranged on the upper end surface of the stainless steel bottom plate (2-1), and the aluminum alloy column (1) and the stainless steel bottom plate (2-1) are fixedly connected as a whole via a plurality of aluminum connectors arranged on the outside of the aluminum alloy column (1).

3. The high-strength node connection structure of the assembled column foot according to claim 2, characterized in that: The aluminum connecting member comprises an aluminum angle (4) arranged outside the side wall of the lower end of the aluminum alloy column (1), the vertical edge of the aluminum angle (4) contacts the side wall of the lower end of the aluminum alloy column (1), and the aluminum alloy column (1) and the vertical edge of the aluminum angle (4) are detachably fixedly connected as a whole by bolts and nuts adapted to be connected to the bolts, and the horizontal edge of the aluminum angle (4) contacts the stainless steel bottom plate (2-1) and the horizontal edge of the aluminum angle (4) is detachably fixedly connected to the stainless steel bottom plate (2-1) and the upper end of the connecting component by bolts and nuts adapted to be connected to the bolts.

4. The high-strength node connection structure of the assembled column foot according to claim 2, characterized in that: The aluminum connecting member comprises an aluminum angle (4) arranged outside the side wall of the lower end of the aluminum alloy column (1); a connecting plate (7) whose lower end is fixed to the upper end surface of the stainless steel bottom plate (2-1) is vertically arranged on the inner side of the aluminum alloy column (1); and the upper end of the connecting plate (7) is fixedly connected to the side wall of the aluminum alloy column (1) by bolts and nuts adapted to be connected to the bolts as a whole; the vertical edge of the aluminum angle (4) contacts the side wall of the lower end of the aluminum alloy column (1) and the connecting plate (7), the aluminum alloy column (1) and the vertical edge of the aluminum angle (4) are detachably fixedly connected to each other by bolts and nuts adapted to be connected to the bolts; the horizontal edge of the aluminum angle (4) contacts the stainless steel bottom plate (2-1) and the horizontal edge of the aluminum angle (4) is detachably fixedly connected to the stainless steel bottom plate (2-1) and the upper end of the connecting component by bolts and nuts adapted to be connected to the bolts as a whole.

5. The high-strength node connection structure of the assembled column foot according to claim 2 or 3, characterized in that: The connection assembly comprises a shear-resistant channel steel (5) located outside the connection plate (2-2), the opening of the shear-resistant channel steel (5) is arranged outward, and the lower plate surface of the shear-resistant channel steel (5) is fixed to the upper end surface of the steel structure column foot (3), the upper plate surface of the shear-resistant channel steel (5) contacts the bottom surface of the stainless steel bottom plate (2-1), and the horizontal edge of the angle aluminum (4), the stainless steel bottom plate (2-1) and the upper plate surface of the shear-resistant channel steel (5) are fixedly connected by bolts and nuts matched with the bolts, the side plates of the shear-resistant channel steel (5), the connection plate (2-2) and the upper end plate of the steel structure column foot (3) are fixedly connected by bolts and nuts matched with the bolts, and the lower edge of the connection plate (2-2) is not lower than the upper end surface of the steel structure column foot (3).

6. The high-strength node connection structure of the assembled column foot according to claim 5, characterized in that: The steel structure column foot (3) comprises an inverted π-shaped structure formed by a column bottom steel base plate (3-1) and a vertical plate (3-3) fixed to the upper end surface of the column bottom steel base plate (3-1); the column bottom steel base plate (3-1) is fixedly connected to the upper ends of a plurality of column foot anchor bolts (3-2) whose lower ends are pre-buried in the foundation; and a shear-resistant member (6) is fixed to the middle of the bottom surface of the column bottom steel base plate (3-1).

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