Steel circular pipe hinged one-way limiting joint structure for building structure

Abstract

The utility model discloses a steel pipe hinged one-way limiting node structure for building structure, steel pipe hinged one-way limiting node structure includes: concrete support, hinged seat and steel pipe, the hinged seat fixed setting in the top of concrete support, just the hinged seat is provided with transverse hole, steel pipe is set through hole, be equipped with inside limit board and outside limit board on the steel pipe, and inside limit board and outside limit board are located hinged seat both sides respectively, and the distance between inside limit board and outside limit board is greater than the depth of hole, to make steel pipe have the activity space in the axial direction of hole. The application is through the inside and outside limit board of steel pipe end fixed, the vertical plate of support and the collaborative connection of longitudinal stiffening plate, combines the flexible anchoring of bottom steel sheet and concrete support, has optimized the mechanical property and construction adaptability of node to the safety, durability and economy of promotion structure.

Description

Technical Field

[0001] This utility model belongs to the field of building structure technology, and in particular relates to a steel round tube hinged unidirectional limiting node structure for building structures. Background Technology

[0002] In steel structure buildings and structures, horizontal hinged supports are key force-transmitting components, and their rotational performance and horizontal displacement control capabilities directly affect the seismic resistance and safety of the overall structure. Since horizontal hinged supports must simultaneously meet the requirements of releasing bending moment, allowing horizontal displacement, and bearing vertical loads, traditional node constructions often lead to stress concentration due to insufficient bending moment release or overly strict displacement restrictions. If the connection design is unreasonable or the construction precision is insufficient, it may cause node deformation or failure, thus affecting the overall stability of the structure. In existing technologies, some node solutions can achieve basic hinged functionality, but they suffer from insufficient tensile strength and prohibition of node displacement. Especially in steel column bases or supports subjected to horizontal loads and allowing structural displacement, the node construction requires complex stiffening measures, increasing construction difficulty and cost. Furthermore, some nodes are designed using a single material (such as all-steel structures), making it difficult to balance the durability and economy of the concrete supports and steel structure working together. In addition, unreasonable traditional node design or insufficient construction precision may lead to safety hazards due to fatigue or loosening after long-term use.

[0003] These problems are particularly pronounced in scenarios such as hinged column bases in steel structures, support structures, and post-added steel roof structures. Existing methods for constructing horizontal hinged joints have limitations such as insufficient moment release, limited horizontal displacement control, and insufficient tensile strength, making it difficult to meet the needs of complex stress conditions and diverse building forms. Therefore, a more systematic technical solution is needed to simplify the construction process while balancing the contradictions between joint rotation flexibility, load-bearing capacity, and long-term performance.

[0004] Therefore, in order to meet the core requirements of moment release and horizontal displacement control at the horizontal hinge support of steel structure, there is an urgent need for a node structure that can achieve the ideal horizontal hinge function, that is, release moment and allow a certain horizontal displacement, while simultaneously meeting the requirements of tensile strength and vertical bearing capacity. Utility Model Content

[0005] The purpose of this utility model is to overcome the problems of the prior art and disclose a steel round tube hinged one-way limiting node structure for building structures. The inner and outer limiting plates, support vertical plates and longitudinal stiffening plates are fixed at the ends of the steel round tube and connected in coordination. Combined with the flexible anchoring of the bottom steel plate and the concrete support, the mechanical properties and construction adaptability of the node are optimized, thereby improving the safety, durability and economy of the structure.

[0006] The objective of this utility model is achieved through the following technical solution: A steel round tube hinged one-way limiting node structure for building structures, the steel round tube hinged one-way limiting node structure includes: a concrete support, a hinge seat and a steel round tube; The hinge seat is fixedly installed at the top of the concrete support, and the hinge seat is provided with a transverse hole through which the steel tube passes. The steel tube is provided with an inner limiting plate and an outer limiting plate, which are located on both sides of the hinge seat. The distance between the inner limiting plate and the outer limiting plate is greater than the depth of the hole, so that the steel tube has room to move in the axial direction of the hole.

[0007] According to a preferred embodiment, the hinge seat includes: a bottom steel plate and a support vertical plate. Each support vertical plate is arranged parallel to the bottom steel plate, and each support vertical plate has holes of the same size, and the holes are arranged coaxially.

[0008] According to a preferred embodiment, the number of the support vertical plates is greater than or equal to three.

[0009] According to a preferred embodiment, the hinge seat further includes a plurality of longitudinal stiffening plates, each of which is disposed between the support vertical plates.

[0010] According to a preferred embodiment, the planar extension surface of each longitudinal stiffening plate is arranged through the axis of the hole.

[0011] According to a preferred embodiment, the number of longitudinal stiffening plates is greater than or equal to three.

[0012] According to a preferred embodiment, the bottom steel plate is fixedly connected to the concrete support by a number of steel bars pre-embedded in the concrete support.

[0013] According to a preferred embodiment, the bottom steel plate is provided with a plurality of fixing holes, each reinforcing bar is provided through the fixing holes, and the top end of the reinforcing bar is provided with an enlarged head structure with a gradually changing diameter, and the fixing hole is a hole structure that matches the enlarged head structure.

[0014] According to a preferred embodiment, the inner limiting plate and the outer limiting plate are arranged in parallel and perpendicular to the axis of the steel tube.

[0015] According to a preferred embodiment, the end of the steel tube is further provided with an end steel plate.

[0016] The aforementioned main solution of this utility model and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted by this utility model and for which protection is sought. Those skilled in the art, after understanding the solution of this utility model, will realize, based on existing technology and common knowledge, that there are many combinations, all of which are technical solutions to be protected by this utility model; therefore, they are not exhaustively listed here.

[0017] The beneficial effects of this utility model are: The steel round tube hinged unidirectional limiting node structure provided by the present invention can be applied to scenarios such as steel structure hinged column base, structure support and post-added steel structure roof.

[0018] The hinged joint can fully release the bending moment and achieve controllable horizontal displacement through the coordinated design of the inner and outer limiting plates fixed at the end of the steel round tube and the vertical plate of the support, thus avoiding stress concentration and deformation failure caused by insufficient release of bending moment or excessive displacement restriction in traditional joints. The construction method of pre-welding the inner limiting plate and subsequently installing the outer limiting plate, combined with the design of setting the support vertical plate at intervals along the bottom steel plate and opening the middle of the support vertical plate according to the diameter of the steel pipe, not only enhances the mechanical performance of the node but also simplifies the construction process and solves the problems of insufficient tensile strength and single horizontal displacement control in traditional solutions. In addition, the flexible anchoring scheme of inserting or pre-embedding the bottom steel plate into the concrete support through perforated plug welding further improves the durability and economy of the node under different support forms, and significantly optimizes the safety and long-term stability of the horizontal hinged support of the steel structure under complex stress conditions. Attached Figure Description

[0019] Figure 1 This is a schematic elevation view of the steel round tube hinged unidirectional limiting node structure of this utility model; Figure 2 This is a schematic diagram of the structural plan of the steel round tube hinged unidirectional limiting node of this utility model; Figure 3 This is a schematic diagram showing the connection relationship between the support vertical plate and the bottom steel plate in this utility model; Figure 4 This is a schematic diagram of the end limiting plate of the steel round tube in this utility model; Figure 5 This is a schematic diagram of the steel plate at the end of the round steel tube in this utility model; Figure 6 This is a schematic diagram of the bottom steel plate in this utility model; Figure 7 This is a schematic diagram of the cross-section of the concrete support reinforcement anchorage in this utility model. Among them, 1-steel round tube, 2-inner limiting plate, 3-outer limiting plate, 4-support vertical plate, 5-longitudinal stiffening plate, 6-hole, 7-bottom steel plate, 8-end steel plate, 9-concrete support, 10-reinforcing bar, 11-fixing hole. Detailed Implementation

[0020] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] Furthermore, it should be noted that unless otherwise specified, the specific structures, connections, positions, power sources, etc. involved in this utility model are all things that a person skilled in the art can know without creative effort based on the prior art.

[0026] Example refer to Figures 1 to 7 As shown in the figure, a one-way hinged limit node structure for a steel round tube 1 used in building structures is illustrated. The one-way hinged limit node structure for the steel round tube 1 includes: a concrete support 9, a hinged seat, and a steel round tube 1.

[0027] The hinge seat is fixedly installed at the top of the concrete support 9, and the hinge seat is provided with a transverse hole 6, through which the steel round pipe 1 is installed.

[0028] The steel tube 1 is provided with an inner limiting plate 2 and an outer limiting plate 3. The inner limiting plate 2 and the outer limiting plate 3 are located on both sides of the hinge seat, and the distance between the inner limiting plate 2 and the outer limiting plate 3 is greater than the depth of the hole 6, so that the steel tube 1 has a space for movement in the axial direction of the hole 6.

[0029] Thus, the hinge of the node can fully release the bending moment and achieve controllable horizontal displacement through the coordinated design of the inner and outer limiting plates fixed at the end of the steel round tube 1 and the hinge seat, avoiding stress concentration and deformation failure caused by insufficient bending moment release or excessive displacement restriction in traditional nodes.

[0030] Preferably, the inner limiting plate 2 and the outer limiting plate 3 are arranged in parallel and perpendicular to the axis of the steel tube 1. The end of the steel tube 1 is also provided with an end steel plate 8.

[0031] Preferably, the thickness of the outer and inner limiting plates is generally not less than the diameter of the steel round pipe + 2mm.

[0032] Preferably, the hinge seat includes: a bottom steel plate 7 and a support vertical plate 4, each support vertical plate 4 being arranged parallel to the bottom steel plate 7, and each support vertical plate 4 having holes 6 of the same size, and each hole 6 being coaxially arranged.

[0033] Furthermore, the number of the support vertical plates 4 is greater than or equal to 3. The distance between the center opening of the support vertical plate and the edge of the support vertical plate is not less than 50mm.

[0034] Preferably, the hinged seat further includes a plurality of longitudinal stiffening plates 5, each of which is disposed between the support vertical plates 4.

[0035] Furthermore, the extended planar surface of each longitudinal stiffening plate 5 is arranged through the axis of the hole 6. Even further, the number of longitudinal stiffening plates 5 is greater than or equal to 3.

[0036] Preferably, the bottom steel plate 7 is fixedly connected to the concrete support 9 by a number of steel bars 10 pre-embedded in the concrete support 9.

[0037] Furthermore, the bottom steel plate 7 is provided with a plurality of fixing holes 11, and each reinforcing bar 10 is provided through the fixing holes 11. The top end of the reinforcing bar 10 is provided with an enlarged head structure with a gradually changing diameter, and the fixing hole 11 is a hole structure that matches the enlarged head structure.

[0038] The steel circular tube hinged unidirectional limiting joint structure provided in this implementation case can solve the problem of insufficient moment release at the support, optimizing the mechanical properties of the joint while allowing unidirectional displacement. It simplifies the on-site construction process, enhances the applicability of the joint in different building forms, and provides a more efficient and reliable solution for horizontal hinged supports of steel structures while improving structural safety, economy and durability.

[0039] The steel circular tube hinged unidirectional limiting node structure disclosed above is applicable to steel structure hinged column bases, structure supports and post-added steel structure roofs, etc. Its construction method enhances the applicability of the node in different building forms, improves structural safety, economy and durability, and solves problems such as insufficient moment release, insufficient tensile strength and single horizontal displacement control of traditional node structures.

[0040] Furthermore, its construction method allows for control of structural displacement through limiting plates at the ends of the steel tubes, and the hinged joints allow for a certain degree of structural displacement while fully releasing bending moments. The connection method of longitudinal stiffening ribs between the support vertical plates enhances the synergistic effect between the components, significantly optimizing the safety and long-term stability of the horizontal hinged support of the steel structure under complex stress conditions.

[0041] The main structure disclosed in this embodiment is not limited to a single one; it can be constructed in multiple structural schemes. This embodiment optimizes and adopts one of the feasible options.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A unidirectional limiting node structure for a steel circular tube hinged joint used in building structures, characterized in that, The structure of the steel round tube hinged unidirectional limiting node includes: a concrete support (9), a hinge seat and a steel round tube (1). The hinge seat is fixedly installed at the top of the concrete support (9), and the hinge seat is provided with a transverse hole (6), through which the steel round tube (1) passes. The steel tube (1) is provided with an inner limiting plate (2) and an outer limiting plate (3). The inner limiting plate (2) and the outer limiting plate (3) are located on both sides of the hinge seat, and the distance between the inner limiting plate (2) and the outer limiting plate (3) is greater than the depth of the hole (6), so that the steel tube (1) has a space for movement in the axial direction of the hole (6).

2. The steel round tube hinged unidirectional limiting node structure as described in claim 1, characterized in that, The hinged seat includes: a bottom steel plate (7) and a support vertical plate (4). Each support vertical plate (4) is arranged parallel to the bottom steel plate (7), and each support vertical plate (4) has holes (6) of the same size, and each hole (6) is arranged coaxially.

3. The steel round tube hinged unidirectional limiting node structure as described in claim 2, characterized in that, The number of the support vertical plates (4) is greater than or equal to three.

4. The steel round tube hinged unidirectional limiting node structure as described in claim 2, characterized in that, The hinge seat also includes several longitudinal stiffening plates (5), each longitudinal stiffening plate (5) being disposed between the support vertical plates (4).

5. The steel round tube hinged unidirectional limiting node structure as described in claim 4, characterized in that, The extended plane of each longitudinal stiffening plate (5) is set through the axis of the hole (6).

6. The steel round tube hinged unidirectional limiting node structure as described in claim 4, characterized in that, The number of longitudinal stiffening plates (5) is greater than or equal to three.

7. The steel round tube hinged unidirectional limiting node structure as described in claim 2, characterized in that, The bottom steel plate (7) is fixedly connected to the concrete support (9) by several steel bars (10) pre-embedded in the concrete support (9).

8. The steel round tube hinged unidirectional limiting node structure as described in claim 7, characterized in that, The bottom steel plate (7) is provided with several fixing holes (11), and each reinforcing bar (10) is provided through the fixing holes (11). The top of the reinforcing bar is provided with an enlarged head structure with a gradually changing diameter. The fixing hole (11) is a hole structure that matches the enlarged head structure.

9. The steel round tube hinged unidirectional limiting node structure as described in claim 1, characterized in that, The inner limiting plate (2) and the outer limiting plate (3) are arranged in parallel and perpendicular to the axis of the steel tube (1).

10. The steel round tube hinged unidirectional limiting node structure as described in claim 1, characterized in that, The steel round tube (1) is also provided with an end steel plate (8) at its end.

Images