Hinge joint for steel beam connection

Abstract

A hinged joint for steel beam connection relates to the technical field of steel structure connection and comprises a longitudinal steel beam, a transverse steel beam and an inclined steel beam, the transverse steel beam and the inclined steel beam are respectively connected with two sides of the longitudinal steel beam, and two sides of the longitudinal steel beam symmetrically extend outwards to be provided with overhanging stiffening ribs. The outward-extending stiffening ribs on the two sides are hinged to web plates of the transverse steel beams and web plates of the oblique steel beams on the two sides through bolts respectively, heightened outward-extending stiffening ribs are arranged at the positions, close to the oblique steel beams, of the bottom sides of the longitudinal steel beams, and the positions of the heightened outward-extending stiffening ribs correspond to the positions of the outward-extending stiffening ribs. And the heightened overhanging stiffening rib is hinged with the web plate position of the inclined steel beam through a bolt. The overall stability and the bearing capacity of the structure are remarkably improved, the overhanging stiffening ribs and the heightened overhanging stiffening ribs are ingeniously arranged and hinged to the bolts, the steel beam connecting structure can be suitable for the situation that the height of the section of a connected steel beam is limited, and an efficient, economical and reliable connecting mode is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure connection, in particular to a hinged node for connecting steel beams. Background Art

[0002] With the acceleration of urbanization, steel structures have been widely used in urban construction due to their advantages such as high strength, fast construction speed, and good seismic resistance. As the main load-bearing components of steel structures, the design of their connection nodes is crucial, directly affecting the safety, stability, and construction efficiency of the entire structure.

[0003] In traditional steel beam connection design, when the connecting beam's cross-section is larger than the connected beam, the connected beam's cross-section is typically increased to ensure connection strength and stability. However, in certain situations, such as urban bridges, high-rise buildings, or structures within confined spaces, simply increasing the beam's height to meet connection requirements is not feasible due to clear height restrictions or other design constraints. This creates an urgent need for an innovative connection method that can both meet strength requirements and accommodate clear height limitations. Utility Model Content

[0004] The utility model aims to propose a new steel beam connection node design scheme to solve the shortcomings of traditional connection methods under conditions of limited net height, and provide new technical support for the design and construction of steel structure buildings.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A hinged node for connecting steel beams, comprising a longitudinal steel beam, a transverse steel beam and an oblique steel beam respectively connected to both sides of the longitudinal steel beam, wherein the two sides of the longitudinal steel beam are symmetrically extended outward with extended stiffening ribs, and the extended stiffening ribs on both sides are respectively hingedly connected to the web positions of the transverse steel beam and the oblique steel beam on both sides by bolts, and a raised extended stiffening rib is provided at a position near the oblique steel beam on the bottom side of the longitudinal steel beam, and the position of the raised extended stiffening rib corresponds to the position of the extended stiffening rib, and the raised extended stiffening rib is hingedly connected to the web position of the oblique steel beam by bolts.

[0007] Furthermore, the planes of the longitudinal steel beam, the oblique steel beam, and the transverse steel beam are in a vertical relationship, the beam surfaces of the longitudinal steel beam and the transverse steel beam are at the same elevation, and the width of the oblique steel beam is longer than that of the longitudinal steel beam;

[0008] The oblique steel beam has a horizontal section and an inclined section. The elevated outwardly extending stiffening rib is connected to the horizontal section. The beam surface elevation of the horizontal section is the same as the beam surface elevation of the longitudinal steel beam.

[0009] Furthermore, the extended stiffening ribs are welded to the flanges and webs on both sides of the longitudinal steel beams by using fillet welds, the extended sections of the extended stiffening ribs are provided with at least two bolt holes connected to the transverse steel beams and the oblique steel beams, the webs of the transverse steel beams and the oblique steel beams are provided with bolt holes at corresponding positions, and the relative bolt holes are connected by the bolts.

[0010] Furthermore, the heightened outwardly extending stiffening rib is welded to the lower flange of the longitudinal steel beam by using fillet welds, the outwardly extending section of the heightened outwardly extending stiffening rib is provided with at least one bolt hole connected to the oblique steel beam, and bolt holes are provided at corresponding positions of the web of the oblique steel beam, and the relative bolt holes are connected by using the bolts.

[0011] Furthermore, the bolt spacing of the extending section of the extending stiffening rib is not less than 3 times the bolt hole diameter, the distance from the outer bolt hole to the edge of the stiffening rib in the direction of force is not less than 2 times the bolt hole diameter, and the distance to the edge of the stiffening rib in the direction of perpendicular force is not less than 1.5 times the bolt hole diameter.

[0012] Furthermore, in the extended section of the heightened extended stiffening rib, the distance from the bolt hole to the edge of the stiffening rib in the direction of force is not less than 2 times the diameter of the bolt hole, and the distance from the bolt hole to the edge of the stiffening rib in the direction of perpendicular force is not less than 1.5 times the diameter of the bolt hole.

[0013] Furthermore, the oblique steel beam is provided with transition stiffening ribs at the elevation change location.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The hinged node design of the steel beam connection of the utility model significantly improves the overall stability and bearing capacity of the structure. Through the ingenious arrangement of the extended stiffening ribs and the heightened extended stiffening ribs and the bolted hinged connection, it not only enhances the connection strength between the steel beams, but also allows the structure to rotate flexibly when subjected to force, effectively dissipating stress, thereby extending the service life of the structure and reducing maintenance costs. It is applicable to situations where the connected steel beams have cross-sectional height restrictions, and is an efficient, economical and reliable connection method. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 It is a top view schematic diagram of the utility model;

[0018] Figure 2It is a schematic diagram of the cross-sectional structure of the present utility model.

[0019] In the figure: (1) longitudinal steel beam, (2) diagonal steel beam, (3) transverse steel beam, (4) outward extending stiffening rib, (5) outward extending stiffening rib, (6) stiffening rib and, (7) bolt. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0022] In this utility model, 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, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0023] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0024] like Figure 1-2As shown, a hinged node for connecting steel beams comprises a longitudinal steel beam 1, a transverse steel beam 3 and an oblique steel beam 2 respectively connected to both sides of the longitudinal steel beam 1, and outwardly extending stiffening ribs 4 are symmetrically provided on both sides of the longitudinal steel beam 1, and the outwardly extending stiffening ribs 4 on both sides are respectively hingedly connected to the web positions of the transverse steel beam 3 and the oblique steel beam 2 on both sides by bolts 7, and a raised outwardly extending stiffening rib 5 is provided on the bottom side of the longitudinal steel beam 1 near the oblique steel beam 2, and the position of the raised outwardly extending stiffening rib 5 corresponds to the position of the raised outwardly extending stiffening rib 4, and the raised outwardly extending stiffening rib 5 is hingedly connected to the web position of the oblique steel beam 2 by bolts 7.

[0025] The longitudinal steel beam 1 is the main load-bearing member, and the symmetrically extended outward ribs 4 on both sides enhance the lateral rigidity and stability of the steel beam. The fillet welds between the extended stiffeners 4 and the longitudinal steel beam 1 ensure the firmness of the connection.

[0026] The setting of the elevated outwardly extending stiffening ribs 5 further enhances the strength of the connection area between the longitudinal steel beam 1 and the oblique steel beam 2, especially in the area where the inclined section of the oblique steel beam 2 intersects with the longitudinal steel beam 1, effectively dispersing the stress and improving the overall stability of the structure.

[0027] The extended and elevated stiffeners 4 and 5 are hingedly connected to the webs of the transverse and diagonal steel beams 3 and 2, respectively, via bolts 7. This connection allows the beams to rotate to a certain extent around the axis of the bolt connection when subjected to external forces, thereby reducing stress concentration within the structure and improving its adaptability and durability.

[0028] The tightness of the bolt connection is achieved through pre-tightening force, ensuring the tightness and stability of the connection. At the same time, the easy disassembly and assembly of the bolt connection also facilitates subsequent maintenance and replacement.

[0029] Specifically, as shown in the figure, the planes between the longitudinal steel beam 1, the oblique steel beam 2, and the transverse steel beam 3 are in a vertical relationship, the beam surfaces of the longitudinal steel beam 1 and the transverse steel beam 3 are at the same elevation, and the width of the oblique steel beam 2 is longer than that of the longitudinal steel beam 1;

[0030] The oblique steel beam 2 has a horizontal section and an inclined section, and the elevated outwardly extending stiffening rib 5 is connected to the horizontal section. The beam surface elevation of the horizontal section is the same as the beam surface elevation of the longitudinal steel beam 1 .

[0031] Specifically, as shown in the figure, the extended stiffening rib 4 is welded to the flanges and webs on both sides of the longitudinal steel beam 1 by fillet welds, and the extended section of the extended stiffening rib 4 is provided with at least two bolt holes connected to the transverse steel beam 3 and the oblique steel beam 2. The webs of the transverse steel beam 3 and the oblique steel beam 2 are provided with bolt holes at corresponding positions, and the relative bolt holes are connected by the bolts 7.

[0032] Specifically, as shown in the figure, the heightened and extended stiffening rib 5 is welded to the lower flange of the longitudinal steel beam 1 by using fillet welds, and the extended section of the heightened and extended stiffening rib 5 is provided with at least one bolt hole connected to the inclined steel beam 2, and the corresponding positions of the web of the inclined steel beam 2 are provided with bolt holes, and the relative bolt holes are connected by the bolts 7.

[0033] Specifically, as shown in the figure, the bolt spacing of the extended section of the extended stiffening rib 4 is not less than 3 times the bolt hole diameter, the distance from the outer bolt hole to the edge of the stiffening rib in the direction of force is not less than 2 times the bolt hole diameter, and not less than 1.5 times the bolt hole diameter to the edge of the stiffening rib in the direction of perpendicular force. In the extended section of the elevated extended stiffening rib 5, the distance from the bolt hole to the edge of the stiffening rib in the direction of force is not less than 2 times the bolt hole diameter, and not less than 1.5 times the bolt hole diameter to the edge of the stiffening rib in the direction of perpendicular force. The arrangement and spacing of the bolt holes in the extended section of the extended stiffening rib 4 and the elevated extended stiffening rib 5 take into account the load-bearing performance and construction convenience. The diameter, spacing and distance of the bolt holes to the edge of the stiffening rib are designed in accordance with the specifications to ensure the strength and stability of the connection.

[0034] Specifically, as shown in the figure, the inclined steel beam 2 is provided with transition stiffeners 6 at the elevation change. The transition stiffeners 6 provided at the elevation change of the inclined steel beam 2 help alleviate the stress concentration problem caused by elevation change, further improving the bearing capacity and stability of the structure.

[0035] The hinged node design of the steel beam connection of the utility model significantly improves the overall stability and bearing capacity of the structure. Through the ingenious arrangement of the extended stiffening ribs and the heightened extended stiffening ribs and the bolted hinged connection, it not only enhances the connection strength between the steel beams, but also allows the structure to rotate flexibly when subjected to force, effectively dissipating stress, thereby extending the service life of the structure and reducing maintenance costs. It is applicable to situations where the connected steel beams have cross-sectional height restrictions, and is an efficient, economical and reliable connection method.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hinged node for connecting steel beams, characterized in that: The invention comprises a longitudinal steel beam (1), a transverse steel beam (3) and an oblique steel beam (2) respectively connected to both sides of the longitudinal steel beam (1); the longitudinal steel beam (1) is symmetrically provided with outwardly extending extending stiffening ribs (4) on both sides; the outwardly extending stiffening ribs (4) on both sides are respectively hingedly connected to the webs of the transverse steel beam (3) and the oblique steel beam (2) on both sides through bolts (7); a heightened outwardly extending stiffening rib (5) is provided at a position near the oblique steel beam (2) on the bottom side of the longitudinal steel beam (1); the position of the heightened outwardly extending stiffening rib (5) corresponds to the position of the heightened outwardly extending stiffening rib (4); the heightened outwardly extending stiffening rib (5) is hingedly connected to the web of the oblique steel beam (2) through bolts (7).

2. The hinged node for connecting steel beams according to claim 1, characterized in that: The planes between the longitudinal steel beam (1), the oblique steel beam (2), and the transverse steel beam (3) are in a vertical relationship; the beam surfaces of the longitudinal steel beam (1) and the transverse steel beam (3) are at the same elevation; and the width of the oblique steel beam (2) is longer than that of the longitudinal steel beam (1); The oblique steel beam (2) has a horizontal section and an inclined section, the elevated outwardly extending stiffening rib (5) is connected to the horizontal section, and the beam surface elevation of the horizontal section is the same as the beam surface elevation of the longitudinal steel beam (1).

3. The hinged node for connecting steel beams according to claim 2, characterized in that: The extended stiffening rib (4) is welded to the flanges and webs on both sides of the longitudinal steel beam (1) by using fillet welds. The extended section of the extended stiffening rib (4) is provided with at least two bolt holes connected to the transverse steel beam (3) and the oblique steel beam (2). The webs of the transverse steel beam (3) and the oblique steel beam (2) are provided with bolt holes at corresponding positions. The bolts (7) are used to connect the opposite bolt holes.

4. The hinged node for connecting steel beams according to claim 3, characterized in that: The heightened and extended stiffening rib (5) is welded to the lower flange of the longitudinal steel beam (1) by using fillet welds. The extended section of the heightened and extended stiffening rib (5) is provided with at least one bolt hole connected to the oblique steel beam (2). The web of the oblique steel beam (2) is provided with bolt holes at corresponding positions. The opposite bolt holes are connected by using the bolts (7).

5. The hinged node for connecting steel beams according to claim 4, characterized in that: The bolt spacing of the extended section of the extended stiffening rib (4) is not less than 3 times the bolt hole diameter, the distance from the outer bolt hole to the edge of the stiffening rib in the direction of force is not less than 2 times the bolt hole diameter, and the distance to the edge of the stiffening rib in the direction of perpendicular force is not less than 1.5 times the bolt hole diameter.

6. The hinged node for connecting steel beams according to claim 5, characterized in that: The distance between the bolt hole and the edge of the stiffening rib in the direction of force is not less than 2 times the diameter of the bolt hole, and the distance between the bolt hole and the edge of the stiffening rib in the direction of force is not less than 1.5 times the diameter of the bolt hole.

7. The hinged node for connecting steel beams according to claim 6, characterized in that: The oblique steel beam (2) is provided with a transition stiffening rib (6) at a location where the elevation changes.

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