Post articulating post connection structure

Abstract

The utility model discloses a kind of stand hinge fixed column connecting structure, including hinged support, hinge piece, rotating pin and limit pin;Hinge piece and hinged support are formed hinge structure by rotating pin, hinged support is fixed in external structure, hinge piece is fixedly connected with column end part;Hinge piece swings around the circle with rotating pin as center;Limit pin is parallel to rotating pin, and it is through hinged support and hinge piece, hinge piece is at limit pin through, it is equipped with the rotation limit hole with rotating pin as center, hinge piece rotates, rotation limit hole is cooperated with limit pin, and hinge piece rotation angle is limited.The utility model because hinge piece can swing relative to hinged support, column component and foundation are in hinge connection state in usual working condition, when column component relative swing angle exceeds design value, limit pin limits the further swing of column component, column component and foundation are changed into consolidated connection state.

Description

Technical Field

[0001] This utility model relates to the field of steel structures, and in particular to a column hinged fixed column connection structure. Background Technology

[0002] Early methods for hinged column base connections often involved directly fixing the column and base with bolts. In practice, this method used pre-embedded bolts and flanges to connect the column and base, relying on welding to enhance stability. Welding requires extensive manual labor, resulting in long construction periods. Furthermore, it was found that the column base approached a rigid connection, making it difficult to release multi-directional stresses caused by load and temperature changes, leading to localized stress concentrations. Later, a pivot shaft was used to connect the column and base, bringing the connection closer to an ideal hinged state. However, traditional hinged structures require custom fabrication and have poor versatility.

[0003] There are two types of hinged joints for column bases in steel frame structures: flexible support hinges and hinged column bases. Flexible support hinges typically involve attaching a layer of rubber to the bottom of the column, relying on the rubber's elasticity to provide cushioning during earthquakes. Hinged column bases, on the other hand, have a hinged device at the bottom of the column, allowing for slight rotation under load. However, this design requires high-quality materials and is prone to aging under prolonged pressure.

[0004] Therefore, there is an urgent need for a column fixing structure that can be hinged under normal conditions and converted to a fixed state under extreme working conditions. Utility Model Content

[0005] This invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to provide a column end connection structure that combines hinged and fixed characteristics and does not require the use of rubber as a buffer.

[0006] To achieve the above objectives, embodiments of this utility model propose a hinged fixed column connection structure, including...

[0007] A hinge support, a hinge member, a rotating pin, and a limiting pin are included. The hinge member and the hinge support form a hinge structure via the rotating pin. The hinge support is fixed to the external structure, and the hinge member is fixed to the end of the column. The hinge member swings around a circle centered on the rotating pin. The limiting pin is parallel to the rotating pin and passes through the hinge support and the hinge member. At the point where the limiting pin passes through, the hinge member has a rotation limiting hole centered on the rotating pin. When the hinge member rotates, the rotation limiting hole engages with the limiting pin to limit the rotation angle of the hinge member.

[0008] According to the column hinged fixed column connection structure of this utility model embodiment, since the hinged member can swing relative to the hinge support, the column member and the foundation are in a hinged connection state under normal working conditions. When the relative swing angle of the column member exceeds the design value, the limiting pin restricts the further swing of the column member, and the column member and the foundation switch to a fixed connection state. This utility model has at least the following advantages:

[0009] 1. Normally, the nodes are in a hinged state, and the column members will not transmit bending moments to the foundation;

[0010] 2. The limit pin is easy to install. After the components are assembled, it only needs to be inserted without welding or bolt connection, eliminating the need for inspection steps such as post-weld flaw detection, welding stress calculation, and bolt tightening torque testing.

[0011] In addition, the column hinged fixed column connection structure proposed in the above embodiments of this utility model may also have the following additional technical features:

[0012] Optionally, the diameter of the limiting pin is smaller than that of the rotating pin.

[0013] Optionally, the cross-section of the limiting pin is weakened.

[0014] Optionally, the limiting pin and the rotating pin are provided with cotter pins at both ends to limit the tendency of axial movement.

[0015] Optionally, the rotation limiting hole is provided with elliptical holes at both ends.

[0016] Optionally, it also includes a bushing fitted onto the rotating pin, wherein the rotating pin is rotatable relative to the bushing and the bushing is rotatable relative to the hinge support. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the combined state according to an embodiment of the present invention;

[0018] Figure 2 This is an exploded side view diagram according to an embodiment of the present invention;

[0019] Figure 3 This is a front view of an exploded view according to an embodiment of the present invention.

[0020] Label Explanation:

[0021] Column 1 Hinged Support 2

[0022] Hinged connector 3, rotation limiting hole 31, sleeve 32

[0023] Rotary pin 4, limit pin 5. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] Because the hinged component can swing relative to the hinged support, the column component and the foundation are in a hinged connection state under normal working conditions. When the relative swing angle of the column component exceeds the design value, the limiting pin restricts the further swing of the column component, and the column component and the foundation switch to a fixed connection state.

[0026] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0027] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0028] The connection point between the column and the base is relatively complex. The column is perpendicular to the ground, and the column base is set as a hinge support, which plays a supporting and rotational role. It mainly solves the problem of column end bending moment transmission when the column is subjected to horizontal load: because the horizontal load multiplied by the height of the column will generate a bending moment at the column end, the bending moment is transmitted to the column foundation through the column and column base. A large bending moment can easily damage the column, column base, and column foundation. In particular, if the column base and column foundation fail before the column, the structure will collapse. The hinge design can solve the bending moment problem well, only transmitting the horizontal force on the upper end of the column to the bottom. The hinge does not generate bending moment, further avoiding the risk of column end failure caused by bending moment. However, in the existing structure, the hinge movement angle of the column is not limited, which may lead to the structural deformation and the generation of new internal forces due to the column displacement exceeding the limit. Therefore, the technical solution of this utility model is to set up a device to limit the rotation angle of the column end.

[0029] Figures 1 to 3 A column hinged fixed column connection structure according to an embodiment of the present utility model includes:

[0030] The hinge support 2, hinge member 3, rotating pin 4, and limiting pin 5 are provided. The hinge member 3 and the hinge support 2 form a hinge structure through the rotating pin 4. The hinge support 2 is fixed to the external structure, and the hinge member 3 is fixed to the end of the column. The hinge member 3 swings around a circle centered on the rotating pin 4. The limiting pin 5 is parallel to the rotating pin 4 and passes through the hinge support 2 and the hinge member 3. The hinge member 3 has a rotation limiting hole 31 with the rotating pin 4 as the center at the point where the limiting pin 5 passes through. When the hinge member 3 rotates, the rotation limiting hole 31 cooperates with the limiting pin 5 to limit the rotation angle of the hinge member 3.

[0031] Specifically, the diameter of the limiting pin 5 is smaller than that of the rotating pin 4, so that the axial force transmitted downward by the column acts on the rotating pin 4 instead of the limiting pin 5.

[0032] Optionally, the cross-section of the limiting pin 5 is weakened. The weakening method can be to set a notch along the radial direction or to set a necking area locally. The purpose of this setting is to allow the limiting pin 5 to deform further under extreme working conditions, absorb some energy through deformation, and after the deformation reaches the limit, it will be stuck between the hinge support 2 and the hinge member 3, so as to achieve a gradual change from the state of hinge to semi-fixed and semi-hinged to fixed.

[0033] Optionally, cotter pins are provided at both ends of the limiting pin 5 and the rotating pin 4 to restrict the tendency of axial movement, which helps to reduce the difficulty of on-site construction.

[0034] Optionally, the rotating limiting hole 31 is provided with elliptical holes at both ends, which, in conjunction with the limiting pin, form a certain range of angle adjustment; in conjunction with the overall structural calculation, it is determined that the column end is always within the adjustment range of the limiting pin.

[0035] To facilitate smoother rotation of the rotating pin 4 relative to the hinge support 2, a sleeve 32 is provided between the hinge support 2 and the rotating pin 4. The hinge support 2, sleeve 32, and rotating pin 4 can rotate freely. This design increases the contact area between the sleeve 32 and the pin, resulting in smoother and easier rotation, reducing excessive local stress, and increasing the strength of the joint, making it less prone to jamming or sticking. In use, the rotating shaft experiences tangential force but almost no axial force. Therefore, the sleeve 32 does not need to have a structure restricting axial movement. However, for ease of assembly and safety, the length of the sleeve 32 should extend beyond both ends of the hinge support 2 and not exceed the length between the cotter pins at both ends of the rotating pin 4.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A hinged fixed column connection structure, characterized in that: include A hinge support, a hinge member, a rotating pin, and a limiting pin are included. The hinge member and the hinge support form a hinge structure via the rotating pin. The hinge support is fixed to the external structure, and the hinge member is fixed to the end of the column. The hinge member swings around a circle centered on the rotating pin. The limiting pin is parallel to the rotating pin and passes through the hinge support and the hinge member. At the point where the limiting pin passes through, the hinge member has a rotation limiting hole centered on the rotating pin. When the hinge member rotates, the rotation limiting hole engages with the limiting pin to limit the rotation angle of the hinge member.

2. The column hinged fixed column connection structure as described in claim 1, characterized in that: The diameter of the limiting pin is smaller than that of the rotating pin.

3. The column hinged fixed column connection structure as described in claim 1, characterized in that: The local cross-section of the limiting pin is weakened.

4. The column hinged fixed column connection structure as described in claim 1, characterized in that: Both ends of the limiting pin and the rotating pin are provided with cotter pins to restrict the tendency of axial movement.

5. The column hinged fixed column connection structure as described in claim 1, characterized in that: The rotation limiting hole has elliptical holes at both ends.

6. The column hinged fixed column connection structure as described in claim 1, characterized in that: It also includes a bushing fitted onto the rotating pin, wherein the rotating pin is rotatable relative to the bushing and the bushing is rotatable relative to the hinge support.

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