Davit suspension connection device for box columns

Abstract

The utility model relates to a suspension column hanging connection device for a box-shaped column, which comprises: an upper ear plate, which is arranged on the end face of one box-shaped column for connection, the upper ear plate is in the shape of a sheet, one side of which is connected to the end face, and the upper ear plate is arranged perpendicularly to the end face of one box-shaped column, and a circular hole is provided on the upper ear plate; a lower ear plate, which is arranged on the end face of another box-shaped column for connection, the lower ear plate is in the shape of a sheet, one side of which is connected to the end face, and the lower ear plate is arranged perpendicularly to the end face of another box-shaped column, and an oblong hole is provided on the lower ear plate; a pin shaft, which is used to pass through the circular hole of the upper ear plate and the oblong hole of the lower ear plate, connect the upper ear plate and the lower ear plate, thereby connecting two box-shaped columns, wherein one box-shaped column hangs the other box-shaped column, forming a suspension column hanging connection mode. According to the suspension column hanging connection device for a box-shaped column of the utility model, it is possible to ensure that the structure transmits force upward and the suspension column is subjected to force in a unidirectional manner, convert compression into tension, and ensure the safety of the building structure.

Description

Technical Field

[0001] The utility model relates to the technical field of beam-column structure buildings, in particular to a hanging column suspension connection device for a box-shaped column. Background Art

[0002] In the structural design of steel structure buildings, steel is used in many corridors, large-span doorheads and cantilever structures due to its advantages of light weight and high rigidity. For large-span structures with large clearance requirements below the floor slab and several floors arranged above, the traditional downward force transmission structural system requires the installation of structural columns below the floor slab, which does not meet the requirements of the clearance use functions of corridors, large-span doorheads and other buildings; for large-span corridors, doorheads and other buildings with column-free clearance requirements below and other structural designs that clearly require the use of hanging columns. Therefore, a steel truss layer or a large steel beam is set at the top, and several floors below it are connected by hanging columns. The reverse force transmission transmits the load to the steel beam or steel truss layer and then to the vertical components such as structural columns or shear walls on both sides.

[0003] However, the existing technology uses conventional rigid or hinged nodes to connect the columns. From the perspective of structural stress analysis, the column is in a tensile state without considering the compressive stability. After setting up temporary supports for large-span steel structure construction, during the construction unloading process, the column will be in a compressive state, which is inconsistent with the original design. In addition, most accidents in steel structure buildings are caused by the instability of the compressive rods, which causes a series of rods to deform excessively and cause structural damage.

[0004] Therefore, there is an urgent need for a suspension column connection method that can transform the stress state of the suspension column connection point from compression to tension, so as to avoid the risk of building collapse caused by unknown problems. Summary of the invention

[0005] The technical problem to be solved by the utility model is that the conventional suspension columns connected by rigid or hinged nodes are also in a tensile state from the perspective of force, and the compressive stability is not considered, which will cause the columns to be compressed during the construction process.

[0006] In order to solve the above technical problems, the utility model provides a suspension column hanging connection device for a box-shaped column, the suspension column hanging connection device is used to connect two box-shaped columns, and the suspension column hanging connection device comprises: an upper ear plate, the upper ear plate is arranged on the end face of one box-shaped column for connection, the upper ear plate is sheet-shaped, one side of which is connected to the end face, and the upper ear plate is perpendicular to the end face of one box-shaped column, and a circular hole is provided on the upper ear plate; a lower ear plate, the lower ear plate is arranged on the end face of the other box-shaped column for connection, the lower ear plate is sheet-shaped, one side of which is connected to the end face, and the lower ear plate is perpendicular to the end face of the other box-shaped column, and an oblong hole is provided on the lower ear plate; a pin shaft, the pin shaft is used to pass through the circular hole of the upper ear plate and the oblong hole of the lower ear plate, connect the upper ear plate and the lower ear plate, thereby connecting the two box-shaped columns, one box column suspends the other box column, and a suspension column hanging connection mode is formed.

[0007] According to an embodiment of the utility model, the box-shaped column is a steel column.

[0008] According to an embodiment of the utility model, the suspension column connection device for the box-shaped column also includes: a connecting end plate, the connecting end plate is welded on the end surface of the box-shaped column, the size of the end plate matches the cross-sectional size of the box-shaped steel column, and the upper ear plate and the lower ear plate are respectively welded on the connecting end plates arranged on the two box-shaped columns. The size of the connecting end plate is the same as the cross-sectional size of the box-shaped steel column, and the thickness of the end plate is not less than the wall thickness of the steel column and the thickness of the ear plate.

[0009] According to the embodiment of the utility model, the upper ear plate and the lower ear plate can be rectangular on one side close to the end face of the connected box-shaped column, and can be semicircular on the other side away from the end face of the connected box-shaped column. The thickness and size of the upper ear plate 2 and the lower ear plate 3 need to meet the calculation and construction requirements of the relevant specifications for the pin-connected ear plates.

[0010] According to an embodiment of the utility model, there can be two upper ear plates, and the two upper ear plates are arranged parallel to each other with maintaining gaps; there can be three lower ear plates, and the three lower ear plates are arranged parallel to each other with maintaining gaps, wherein the maintaining gap of the upper ear plate is greater than the thickness of the lower ear plate, and the maintaining gap of the lower ear plate is greater than the thickness of the upper ear plate.

[0011] According to an embodiment of the utility model, the diameter of the circular hole of the upper ear plate is equal to the diameter of the oblong hole of the lower ear plate.

[0012] According to an embodiment of the present invention, the length of the oblong hole of the lower ear plate may be 2-3 times the diameter of the hole.

[0013] According to an embodiment of the utility model, a gap of 5 mm can be maintained between the upper ear plate and the lower ear plate in the direction of the line connecting the centers of the holes.

[0014] According to the embodiment of the utility model, the diameter of the pin shaft needs to be smaller than the diameter of the circular hole of the upper ear plate and the diameter of the oblong hole of the lower ear plate.

[0015] According to the embodiment of the utility model, the diameter of the pin shaft differs from the diameter of the circular hole and the diameter of the oblong hole by no more than 1 mm.

[0016] Compared with the prior art, the technical solution provided by the embodiment of the utility model can at least achieve the following beneficial effects:

[0017] The utility model opens a round hole on the upper ear plate, opens an oblong hole on the lower ear plate, and connects the upper and lower ear plates through a pin shaft. When the hanging column is under pressure, the pin shaft can be relatively displaced in the oblong hole, thereby ensuring the unidirectionality of the upward force transmission of the structure and the unidirectionality of the force on the hanging column, thereby complying with the structural design and ensuring the safety of the building structure.

[0018] The utility model converts the column from a compression rod to a tension rod through the connection method of the suspension column, which solves the problem of buckling instability of the steel column under axial pressure. When selecting the cross section of the steel column during the design process, the compressive stability of the steel column under the action of the axial force can be ignored; the connection method of the suspension column can convert the force mode of the suspension column from compression to tension, which has the significance of avoiding unknown risks that may cause the collapse of the building to a certain extent. At the same time, the allowable slenderness ratio of the tension member is increased to a certain extent compared with the compression rod, which has a favorable effect on the selection of the cross section of the steel column and can save the amount of steel.

[0019] The utility model of the suspension column suspension connection device for box-shaped columns can meet the requirements of clear space buildings without columns below, such as large-span corridors and large-span doorheads. The technical solution of the utility model is based on the reverse force transmission characteristics of the suspension column, and proposes a suspension structure box-shaped suspension column connection node, which is simple in structure and easy to install, and can solve the problem of force transmission of the suspension structure. The utility model of the suspension column suspension connection device has a simple node connection and is suitable for suspension structures that need to transfer axial loads upward, such as gallery suspension columns and top steel trusses with greater rigidity connected to the lower floors through suspension columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present utility model, rather than limiting the present utility model.

[0021] Figure 1 It is a structural schematic diagram of a suspension column suspension connection device for a box-shaped column according to an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 Component breakdown diagram. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment 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.

[0024] Unless otherwise defined, the technical or scientific terms used herein shall have the common meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the patent application specification and claims of the utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not indicate a quantity limitation, but indicate the existence of at least one.

[0025] Figure 1 It is a structural schematic diagram of a suspension column suspension connection device for a box-shaped column according to an embodiment of the utility model; Figure 2 yes Figure 1 Component breakdown diagram.

[0026] The sling suspension connection device for box-shaped columns is used to connect two box-shaped columns 1.

[0027] like Figure 1 and Figure 2 As shown, the suspension column hanging connection device for the box-shaped column includes: an upper ear plate 2, a lower ear plate 3 and a pin 5.

[0028] The upper ear plate 2 is arranged on the end face of a box-shaped column 1 for connection. The upper ear plate 2 is sheet-shaped, one side of which is connected to the end face, and the upper ear plate 2 is arranged vertically to the end face of the box-shaped column 1. A circular hole is opened on the upper ear plate 2.

[0029] The lower ear plate 3 is arranged on the end face of another box-shaped column for connection. The lower ear plate 3 is sheet-shaped, one side of which is connected to the end face, and the lower ear plate 3 is arranged perpendicular to the end face of another box-shaped column 1. An oblong hole is opened on the lower ear plate 3.

[0030] The pin 5 is used to pass through the circular hole of the upper ear plate 2 and the oblong hole of the lower ear plate 3 to connect the upper ear plate 2 and the lower ear plate 3, thereby connecting the two box-shaped columns, wherein one box-shaped column 1 suspends the other box-shaped column to form a hanging column suspension connection.

[0031] The utility model opens a circular hole on the upper ear plate 2, opens an oblong hole on the lower ear plate 3, and connects the upper ear plate 2 and the lower ear plate 3 through a pin shaft 5. When the hanging column is under pressure, the pin shaft 5 can be relatively displaced in the oblong hole, thereby ensuring the unidirectionality of the upward force transmission of the structure and the unidirectionality of the force on the hanging column, thereby complying with the structural design and ensuring the safety of the building structure.

[0032] According to one or some embodiments of the present invention, the box-shaped column 1 is a steel column.

[0033] According to one or some embodiments of the utility model, the sling suspension connection device for the box-shaped column further includes: a connecting end plate 4, the connecting end plate 4 is welded on the end face of the box-shaped column, the size of the end plate matches the cross-sectional size of the box-shaped steel column, and the upper ear plate 2 and the lower ear plate 3 are respectively welded on the connecting end plate 4 arranged on the two box-shaped columns 1. The size of the connecting end plate is the same as the cross-sectional size of the box-shaped steel column, and the thickness of the end plate is not less than the wall thickness of the steel column and the thickness of the ear plate.

[0034] According to one or some embodiments of the present invention, the upper ear plate 2 and the lower ear plate 3 are rectangular on one side close to the end face of the connected box-shaped column, and semicircular on the other side away from the end face of the connected box-shaped column. The thickness and size of the upper ear plate 2 and the lower ear plate 3 need to meet the calculation and construction requirements of the relevant specifications for the pin-connected ear plates.

[0035] According to one or some embodiments of the utility model, there are two upper ear plates 2, and the two upper ear plates 2 are arranged parallel to each other with a gap; there are three lower ear plates 3, and the three lower ear plates 3 are arranged parallel to each other with a gap. Among them, the gap maintained by the upper ear plate 2 is greater than the thickness of the lower ear plate 3, and the gap maintained by the lower ear plate 3 is greater than the thickness of the upper ear plate 2.

[0036] According to one or some embodiments of the present invention, the circular hole of the upper ear plate 2 and the oblong hole of the lower ear plate 3 have the same diameter.

[0037] According to one or some embodiments of the present invention, the length of the oblong hole of the lower ear plate 3 is 2-3 times the diameter of the hole.

[0038] According to one or some embodiments of the present invention, a gap of 5 mm is maintained between the upper ear plate 2 and the lower ear plate 3 in the direction of the line connecting the centers of the holes.

[0039] According to one or some embodiments of the present invention, the diameter of the pin 5 needs to be smaller than the diameter of the circular hole of the upper ear plate 2 and the diameter of the oblong hole of the lower ear plate 3 .

[0040] According to one or some embodiments of the present invention, the diameter of the pin 5 differs from the diameter of the circular hole and the diameter of the oblong hole by no more than 1 mm.

[0041] The utility model converts the column from a compression rod to a tension rod through the connection method of the suspension column, which solves the problem of buckling instability of the steel column under axial pressure. When selecting the cross section of the steel column during the design process, the compressive stability of the steel column under the action of the axial force can be ignored; the connection method of the suspension column can convert the force mode of the suspension column from compression to tension, which has the significance of avoiding unknown risks that may cause the collapse of the building to a certain extent. At the same time, the allowable slenderness ratio of the tension member is increased to a certain extent compared with the compression rod, which has a favorable effect on the selection of the cross section of the steel column and can save the amount of steel.

[0042] When in use, the construction process is: the first step is to determine the load of the structure according to the use function of the building, calculate the internal force of the hanging column, and select the appropriate cross-sectional size of the box column 1; the second step is to calculate and select the appropriate pin 5, upper ear plate 2 and lower ear plate 3 according to relevant specifications; the third step is to weld the connecting end plate 4 at one end of the upper box column 1; the fourth step is to weld two upper ear plates 2 on the connecting end plate 4; the fifth step is to weld the connecting end plate 4 at one end of the lower box column; the sixth step is to weld three lower ear plates 3 on the connecting end plate 4; the sixth step is to pass the pin 5 through the upper ear plate 2 and the lower ear plate 3 to connect the upper and lower box steel columns.

[0043] The utility model of the suspension column suspension connection device for box-shaped columns can meet the requirements of clear space buildings without columns below, such as large-span corridors and large-span doorheads. The technical solution of the utility model is based on the reverse force transmission characteristics of the suspension column, and proposes a suspension structure box-shaped suspension column connection node, which is simple in structure and easy to install, and can solve the problem of force transmission of the suspension structure. The utility model of the suspension column suspension connection device has a simple node connection and is suitable for suspension structures that need to transfer axial loads upward, such as gallery suspension columns and top steel trusses with greater rigidity connected to the lower floors through suspension columns.

[0044] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A sling suspension connection device for a box column, characterized in that: The sling column suspension connection device is used to connect two box-shaped columns, and the sling column suspension connection device includes: An upper ear plate, the upper ear plate is arranged on an end face of a box-shaped column for connection, the upper ear plate is in sheet shape, one side of which is connected to the end face, and the upper ear plate is arranged perpendicular to the end face of the box-shaped column, and a circular hole is provided on the upper ear plate; A lower ear plate, the lower ear plate is arranged on the end face of another box-shaped column for connection, the lower ear plate is in the shape of a sheet, one side of which is connected to the end face, and the lower ear plate is arranged perpendicular to the end face of the other box-shaped column, and an oblong hole is provided on the lower ear plate; The pin shaft is used to pass through the circular hole of the upper ear plate and the oblong hole of the lower ear plate to connect the upper ear plate and the lower ear plate, thereby connecting the two box-shaped columns, one box-shaped column suspends the other box-shaped column to form a hanging column suspension connection.

2. The suspensory column suspension connection device for a box column according to claim 1, characterized in that: The box-shaped column is a steel column.

3. The suspensory column suspension connection device for a box column according to claim 1, characterized in that: Also includes: The connecting end plate is welded on the end surface of the box-shaped column, the size of the end plate matches the cross-sectional size of the box-shaped steel column, and the upper ear plate and the lower ear plate are respectively welded on the connecting end plates arranged on the two box-shaped columns.

4. The suspensory column suspension connection device for a box column according to claim 1, characterized in that: The upper ear plate and the lower ear plate have a rectangular shape on one side close to the end face of the connected box-shaped column, and a semicircular shape on the other side away from the end face of the connected box-shaped column.

5. The suspensory column suspension connection device for a box column according to claim 1, characterized in that: There are two upper ear plates, which are arranged parallel to each other with a gap; there are three lower ear plates, which are arranged parallel to each other with a gap. Among them, the holding gap of the upper ear plate is greater than the thickness of the lower ear plate, and the holding gap of the lower ear plate is greater than the thickness of the upper ear plate.

6. The suspensory column suspension connection device for a box column according to claim 1, characterized in that: The diameter of the circular hole of the upper ear plate is equal to the diameter of the oblong hole of the lower ear plate.

7. The suspensory column suspension connection device for a box column according to claim 1, characterized in that: The length of the oblong hole of the lower ear plate is 2-3 times the diameter of the hole.

8. The suspensory column suspension connection device for a box column according to claim 1, characterized in that: The upper ear plate and the lower ear plate maintain a gap of 5 mm in the direction of the center line of the holes.

9. The suspensory column suspension connection device for a box column according to claim 1, characterized in that: The diameter of the pin shaft needs to be smaller than the diameter of the circular hole of the upper ear plate and the diameter of the oblong hole of the lower ear plate.

10. The suspensory column suspension connection device for a box column according to claim 9, characterized in that: The diameter of the pin shaft differs from the diameter of the circular hole and the diameter of the oblong hole by no more than 1 mm.

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