Middle-span bifurcated beam

Abstract

The utility model relates to the field of building structure design, in particular to a midspan bifurcated beam, which comprises a trunk part, a cross beam part and a cross beam part, the trunk part comprises two trunk beams which are arranged along the same axis, and one ends of the two trunk beams are respectively connected with a main body structure; the forked part is located between the two main beams, the forked part comprises two branch beams, two connecting cross beams and at least one inter-branch cross beam, the two branch beams are arranged at intervals in the axial direction parallel to the main beams, and the two connecting cross beams are arranged at intervals in the axial direction parallel to the main beams. The two ends of the two branch beams are correspondingly connected through the two connecting cross beams to define a hollow area, and the at least one branch cross beam is movably erected between the two branch beams to divide the hollow area into at least two holes. And the other ends of the two main beams are respectively connected with the two connecting cross beams. Compared with the prior art, the utilization rate of the steel beams can be improved, the steel consumption is reduced, and the economical efficiency is better.

Description

Technical Field

[0001] The utility model relates to the field of building structure design, in particular to a mid-span bifurcated beam. Background Art

[0002] For medical wards, residences, hotel rooms and other units, each of which is equipped with a bathroom frame structure, in the case where a frame 1 contains two room units, the bathroom pipeline opening 2 is usually located in the middle of the frame 1, such as Figure 1 shown.

[0003] If there is no opening in the floor, the secondary beam 3 is placed in the middle of the frame 1, which can meet the requirements of the floor and the room partition wall load. Figure 2 However, in order to meet the requirements of the layout of the opening 2, it is usually necessary to adjust the layout of the secondary beam 3 in the frame 1 accordingly, such as Figure 3 As shown, two secondary beams 3 and a connecting cross beam 4 between the two secondary beams 3 are used to enclose the opening. This arrangement has a low utilization rate of steel beams and requires an additional secondary beam 3, which is not economical. Especially when the building functions as a medical ward, residence, hotel room, etc., the opening layout is relatively uniform and the number is large, the economy of the side beams at the opening needs to be paid attention to. Utility Model Content

[0004] The utility model aims to provide a mid-span bifurcated beam, which can improve the utilization rate of steel beams, reduce the amount of steel used, and has better economy.

[0005] In order to achieve the above object, the utility model provides a mid-span bifurcated beam, comprising:

[0006] The trunk part includes two trunk beams arranged along the same axis, and one end of the two trunk beams is respectively connected to the main structure;

[0007] The bifurcation portion is located between the two main beams, and the bifurcation portion includes two branch beams, two connecting beams and at least one inter-branch beam. The two branch beams are arranged along an axial spacing parallel to the main beams, and the two ends of the two branch beams are respectively connected by two connecting beams to enclose a hollow area. The at least one inter-branch beam is movably erected between the two branch beams to divide the hollow area into at least two openings, and the other ends of the two main beams are respectively connected to the two connecting beams.

[0008] Optionally, the branch beam is axially provided with at least two node plate groups, each of the node plate groups includes two node plates relatively arranged on two branch beams, and both ends of the inter-branch cross beam are detachably connected to the two node plates of the same node plate group.

[0009] Optionally, the branch beam has a web, the web of the branch beam has a first side and a second side opposite to each other, the node plate is arranged on the first side, and a first stiffening rib is arranged on the second side corresponding to the position of the node plate, and the first stiffening rib is perpendicular to the plane where the main beam and the connecting beam are located.

[0010] Optionally, a wing-shaped stiffening plate is provided at the connection between the main beam and the connecting crossbeam, and an extension direction of the wing-shaped stiffening plate is parallel to the plane where the main beam and the connecting crossbeam are located.

[0011] Optionally, the wing-shaped stiffening plate gradually narrows in a direction away from the connecting beam.

[0012] Optionally, a second stiffening rib is provided at the connection between the connecting beam and the main beam, and a third stiffening rib is provided at the connection between the connecting beam and the branch beam, and the second stiffening rib and the third stiffening rib are perpendicular to the plane where the main beam and the connecting beam are located.

[0013] Optionally, the connection between the main beam and the connecting beam and / or the branch beam and the connecting beam is by welding.

[0014] Optionally, the main beam, the connecting beam and the inter-branch beam each have a flange, and the flanges of the main beam, the connecting beam and the inter-branch beam are on the same plane.

[0015] Optionally, the main beam is perpendicular to the connecting beam, and the inter-branch beam is parallel to the connecting beam.

[0016] Optionally, the two branch beams are symmetrically arranged about the axis of the main beam.

[0017] In the mid-span bifurcated beam provided by the utility model, a bifurcated design is performed in the span of the trunk part, and at least two openings are separated by the cross beam between the branches, which can improve the utilization rate of the steel beam, reduce the amount of steel used, and have better economy compared with the prior art. In addition, the cross beam between the branches is a movable design, and can separate openings of different sizes according to the requirements of pipeline layout, which has wider applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Those skilled in the art should understand that the drawings provided are for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.

[0019] Figure 1 A plan view of the openings arranged in the center of the frame provided by the prior art;

[0020] Figure 2 A plan view of arranging a secondary beam in the middle of a frame is provided for the prior art;

[0021] Figure 3 A plan view of the arrangement of secondary beams and openings in the middle of the frame is provided for the prior art;

[0022] Figure 4 A three-dimensional diagram of a mid-span bifurcated beam provided in one embodiment of the utility model;

[0023] Figure 5 A plan view of a mid-span bifurcated beam provided in one embodiment of the utility model;

[0024] Figure 6 for Figure 5 Section view along AA;

[0025] Figure 7 for Figure 5 Section view along BB.

[0026] in:

[0027] 1-frame; 2-opening; 3-secondary beam; 4-connecting beam;

[0028] 101-main beam; 102-branch beam; 103-connecting beam; 104-inter-branch beam; 105-opening; 106-node plate; 107-first stiffening rib; 108-wing-shaped stiffening plate; 109-second stiffening rib; 110-third stiffening rib. DETAILED DESCRIPTION

[0029] In order to make the purpose, advantages and features of the present utility model clearer, the present utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the present utility model. In order to make the purpose, features and advantages of the present utility model more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Any modification of the structure, change in the proportional relationship or adjustment of the size, in the case of the same or similar effects and purposes that can be achieved by the present utility model, should still fall within the scope of the technical content disclosed by the present utility model.

[0030] As used in the present invention, the singular forms "one", "an", and "the" include plural objects, unless the content clearly indicates otherwise. As used in the present invention, the term "or" is generally used in a sense that includes "and / or", unless the content clearly indicates otherwise. As used in the present invention, the term "several" is generally used in a sense that includes "at least one", unless the content clearly indicates otherwise. As used in the present invention, the term "at least two" is generally used in a sense that includes "two or more", unless the content clearly indicates otherwise. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include one or at least two of the features.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Please refer to Figure 4-Figure 7 , this embodiment provides a mid-span bifurcated beam, comprising:

[0033] The trunk part includes two trunk beams 101 arranged along the same axis, and one end of the two trunk beams 101 is respectively connected to the main structure;

[0034] The bifurcated portion is located between the two main beams 101, and the bifurcated portion includes two branch beams 102, two connecting beams 103 and at least one inter-branch beam 104. The two branch beams 102 are arranged along an axial spacing parallel to the main beams 101, and the two ends of the two branch beams 102 are respectively connected by two connecting beams 103 to enclose a hollow area. At least one inter-branch beam 104 is movably erected between the two branch beams 102 to divide the hollow area into at least two openings 105. The other ends of the two main beams 101 are respectively connected to the two connecting beams 103.

[0035] By designing a bifurcation in the span of the trunk part, at least two openings 105 are separated by the cross beam 104 between the branches, which can improve the utilization rate of the steel beam, reduce the amount of steel used, and be more economical. In addition, the cross beam 104 between the branches is a movable design, which can separate openings 105 of different sizes according to the requirements of pipeline layout, and has a wider applicability.

[0036] Specifically, in this embodiment, the trunk part is divided into two parts, namely, two trunk beams 101 arranged along the same axis, one end of the two trunk beams 101 are respectively connected to the main structure (such as frame beams), and the other ends of the two trunk beams 101 are respectively connected to two connecting beams 103.

[0037] In this embodiment, two branch beams 102 are distributed on both sides of the axis of the main beam 10110 along the axial direction parallel to the main beam 101. Preferably, the two branch beams 102 are symmetrically distributed along the axis of the main beam 101. Of course, in other embodiments, the two branch beams 102 may not be symmetrically distributed along the axis of the main beam 10110. Those skilled in the art may configure the distribution of the branch beams 102 and the corresponding parameters according to actual conditions, and the present invention does not limit this.

[0038] The two ends of the two branch beams 102 are respectively connected by two connecting beams 103 to enclose a hollow area. In this embodiment, the connecting beam 103 is vertically connected to the branch beam 102, and the hollow area is rectangular. Of course, in other embodiments, if the connecting beam 103 is not vertically connected to the branch beam 102, the hollow area can be other shapes, such as a trapezoid.

[0039] Preferably, the main beam 101 is perpendicular to the connecting beam 103, and the inter-branch beam 104 is parallel to the connecting beam 103. It should be noted that in other embodiments, the inter-branch beam 104 may also be at a certain angle to the connecting beam 103. Without affecting the stress of the overall component, those skilled in the art may configure the position of the inter-branch beam 104 according to actual conditions, and the present utility model does not limit this.

[0040] In this embodiment, the cross-sectional shape of the hole 105 is a square. It should be noted that the cross-sectional shape of the hole 105 can also be other shapes. Those skilled in the art can configure the cross-sectional shape of the hole 105 according to the layout requirements of the pipeline, and the utility model does not limit this.

[0041] At least one inter-branch crossbeam 104 is movably mounted between two branch beams 102 to divide the hollow area into at least two openings 105. In a preferred embodiment, the branch beam 102 is provided with at least two node plate groups along the axial direction, each node plate group includes two node plates 106 arranged on two branch beams 102 opposite to each other, and the two ends of the inter-branch crossbeam 104 are detachably connected to the two node plates 106 of the same node plate group. The detachable connection method is, for example, a fastening connection, such as correspondingly opening connection holes (plain holes or threaded holes) on the node plates 106 and the inter-branch crossbeam 104, and then locking and fixing them with fasteners such as bolts and nuts.

[0042] In this embodiment, there is one cross beam 104 between branches and three node plate groups, but the present invention does not limit this and can be adjusted according to needs.

[0043] Of course, in addition to setting the node plate 106, it is also possible to consider directly opening holes in the branch beam 102 and the inter-branch cross beam 104, and then fastening them together, and the position of the inter-branch cross beam 104 can also be adjusted, and the present invention does not impose any restrictions on this.

[0044] Preferably, the branch beam 102 has a web, the web of the branch beam 102 has a first side and a second side opposite to each other, the node plate 106 is arranged on the first side, and a first stiffening rib 107 is arranged at a position corresponding to the node plate 106 on the second side, and the first stiffening rib 107 is perpendicular to the plane where the trunk beam 101 and the connecting cross beam 103 are located. The first stiffening rib 107 is arranged to locally strengthen the connection between the branch beam 102 and the node plate 106.

[0045] Preferably, a wing-shaped stiffening plate 108 is provided at the connection between the main beam 101 and the connecting beam 103, and the extension direction of the wing-shaped stiffening plate 108 is parallel to the plane where the main beam 101 and the connecting beam 103 are located. The provision of the wing-shaped stiffening plate 108 improves the strength and rigidity of the connection between the main beam 101 and the connecting beam 103.

[0046] In this embodiment, the cross-sectional shape of the wing-shaped stiffening plate 108 is a triangle. Of course, in some other embodiments, the cross-sectional shape of the stiffening plate may also be other shapes, such as a fan shape, etc., and the utility model does not limit this. In other embodiments, if the load is small, the flange strength and stiffness of the main beam 101 and the branch beam 102 meet the requirements, the wing-shaped stiffening plate 108 may also be removed, and those skilled in the art may configure the stiffening plate according to actual conditions.

[0047] Furthermore, the wing-shaped stiffening plate 108 gradually narrows in the direction away from the connecting beam 103. Such a configuration allows the wing-shaped stiffening plate 108 to better fit the size of the main beam 101 and the connecting beam 103, and gradually transitions the stiffness of the connection between the main beam 101 and the connecting beam 103, so as not to produce a sudden stress change, and also saves the amount of material required to make the wing-shaped stiffening plate 108.

[0048] Preferably, a second stiffening rib 109 is provided at the connection between the connecting crossbeam 103 and the main beam 101, and a third stiffening rib 110 is provided at the connection between the connecting crossbeam 103 and the branch beam 102, and the second stiffening rib 109 and the third stiffening rib 110 are perpendicular to the plane where the main beam 101 and the connecting crossbeam 103 are located. It should be noted that the second stiffening rib 109 and the third stiffening rib 110 are both transverse stiffening ribs, which can avoid the instability of the web of the main beam 101 and / or the web of the connecting crossbeam 103 caused by local stress.

[0049] Furthermore, the connecting cross beam 103 has a web, and the two opposite sides of the web are respectively a first side and a second side; the first side of the web is connected to the main beam 101, and the second stiffening rib 109 is located at the position of the second side of the web corresponding to the main beam 101; the second side of the web is connected to the branch beam 102, and the third stiffening rib 110 is located at the position of the first side of the web corresponding to the branch beam 102. It should be noted that the second stiffening rib 109 is connected to the web and flange of the main beam 101 by welding, and the third stiffening rib 110 is connected to the web of the connecting cross beam 103 by welding. Of course, in some other embodiments, the stiffening rib and the beam can also be connected by other connection methods, not necessarily welding. Those skilled in the art can configure it according to actual needs, and the present utility model is not limited to this.

[0050] Preferably, the connection between the main beam 101 and the connecting beam 103 and / or the branch beam 102 and the connecting beam 103 is by welding. It should be noted that in this embodiment, the various component beams of the mid-span bifurcated beam, except the inter-branch beam 104, such as the main beam 101, the branch beam 102, and the connecting beam 103, can be connected into a whole by welding. Of course, in some other embodiments, the connection between the various component beams of the steel beam is not necessarily by welding, but can be other methods. Those skilled in the art can configure the connection between the various component beams of the steel beam according to actual conditions, and this novel use does not limit this.

[0051] Preferably, the main beam 101, the connecting beam 103 and the inter-branch beam 104 each have a flange, and the flanges of the main beam 101, the connecting beam 103 and the inter-branch beam 104 are on the same plane. It should be noted that in the present embodiment, the main beam 101, the branch beam 102, the connecting beam 103 and the inter-branch beam 104 are all I-shaped steel beams. With such a configuration, the I-shaped steel beam can reduce the weight of the steel beam and further improve the problem of poor economy of the steel beam without affecting the bending resistance of the overall component. In some other embodiments, the main beam 101, the branch beam 102, the connecting beam 103 and the inter-branch beam 104 can also be beams of other forms. Those skilled in the art can configure the form of the beam according to actual conditions, and the present utility model does not limit this.

[0052] In summary, the embodiment of the utility model provides a mid-span bifurcated beam, which is bifurcated in the span of the trunk part and uses the inter-branch crossbeam 104 to separate at least two openings 105. Compared with the prior art, it can improve the utilization rate of steel beams, reduce the amount of steel used, and be more economical. In addition, the inter-branch crossbeam 104 is a movable design, which can separate openings 105 of different sizes according to the requirements of pipeline layout, and has a wider applicability.

[0053] In addition, it should be recognized that although the present invention has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present invention. For any technician familiar with the art, without departing from the scope of the technical solution of the present invention, the above disclosed technical content can be used to make many possible changes and modifications to the technical solution of the present invention, or modified into equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A mid-span bifurcated beam, characterized in that: include: The trunk part includes two trunk beams arranged along the same axis, and one end of the two trunk beams is respectively connected to the main structure; The bifurcation portion is located between the two main beams, and the bifurcation portion includes two branch beams, two connecting beams and at least one inter-branch beam. The two branch beams are arranged along an axial spacing parallel to the main beams, and the two ends of the two branch beams are respectively connected by two connecting beams to enclose a hollow area. The at least one inter-branch beam is movably erected between the two branch beams to divide the hollow area into at least two openings, and the other ends of the two main beams are respectively connected to the two connecting beams.

2. The mid-span bifurcated beam according to claim 1, characterized in that: The branch beam is axially provided with at least two node plate groups, each of the node plate groups includes two node plates arranged oppositely on two branch beams, and the two ends of the inter-branch cross beam are detachably connected to the two node plates of the same node plate group.

3. The mid-span bifurcated beam according to claim 2, characterized in that: The branch beam has a web, and the web of the branch beam has a first side and a second side opposite to each other. The node plate is arranged on the first side, and a first stiffening rib is arranged at a position of the second side corresponding to the node plate, and the first stiffening rib is perpendicular to the plane where the main beam and the connecting beam are located.

4. The mid-span bifurcated beam according to claim 1, characterized in that: A wing-shaped stiffening plate is provided at the connection between the main beam and the connecting cross beam, and the extension direction of the wing-shaped stiffening plate is parallel to the plane where the main beam and the connecting cross beam are located.

5. The mid-span bifurcated beam according to claim 4, characterized in that: The wing-shaped stiffening plate gradually narrows in a direction away from the connecting crossbeam.

6. The mid-span bifurcated beam according to claim 1, characterized in that: A second stiffening rib is provided at the connection between the connecting crossbeam and the main beam, and a third stiffening rib is provided at the connection between the connecting crossbeam and the branch beam. The second stiffening rib and the third stiffening rib are perpendicular to the plane where the main beam and the connecting crossbeam are located.

7. The mid-span bifurcated beam according to claim 1, characterized in that: The main beam and the connecting beam and / or the branch beam and the connecting beam are connected by welding.

8. The mid-span bifurcated beam according to claim 1, characterized in that: The main beam, the connecting beam and the inter-branch beam each have a flange, and the flanges of the main beam, the connecting beam and the inter-branch beam are on the same plane.

9. The mid-span bifurcated beam according to claim 1, characterized in that: The main beam is perpendicular to the connecting beam, and the inter-branch beam is parallel to the connecting beam.

10. The mid-span bifurcated beam according to claim 1, characterized in that: The two branch beams are symmetrically arranged about the axis of the main beam.

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