Steel structure beam, composite beam and beam plate

Abstract

This utility model provides a steel structure beam, a composite beam, and a beam-slab. The steel structure beam includes: a steel sleeve with a cavity; and a truss beam with at least three chords and multiple web members, with two chords connected to the ends of each web member. The truss beam is disposed within the cavity, and the inner wall of the cavity of the steel sleeve is welded to the truss beam. The composite beam includes multiple steel structure beams and multiple connecting pipes, with the connecting pipes passing through the steel structure beams to connect them. The beam-slab adds a panel and a cover plate to the composite beam. The steel structure beam, composite beam, and beam-slab provided by this utility model, with the truss beam structure providing stable support for the whole structure, can improve load-bearing capacity, and the components are easy to assemble and highly applicable.

Description

Technical Field

[0001] This utility model relates to building components, and more particularly to a steel structure beam, composite beam, and beam-slab. Background Technology

[0002] Beams are among the most important components of a building's framework. They support the entire weight of the building's superstructure and roof, making them the most crucial part of the superstructure. Beams have different names depending on their specific location, shape, and function. The orientation of most beams aligns with the cross-section of the building.

[0003] Traditional steel beam structures have significant drawbacks in terms of stability. Slender beams, especially I-beams and H-beams, are prone to local buckling under compression, which can cause wrinkling of the web or flanges or overall lateral torsional buckling, significantly impacting their load-bearing capacity.

[0004] In order to overcome the above-mentioned defects in the existing technology, there is an urgent need in the field for a steel structure beam, composite beam and beam-slab for building components, which can effectively improve the stability performance and load-bearing capacity of the steel structure beam, while being easy to assemble and can be flexibly combined into composite beams or beam-slabs as needed, so as to be applied to various scenarios. Utility Model Content

[0005] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.

[0006] To overcome the aforementioned deficiencies in the existing technology, this utility model provides a steel structure beam, which may include: a steel sleeve having a cavity; and a truss beam having at least three chords and multiple web members, with two of the chords connected to the ends of the web members; the truss beam is disposed in the cavity, and the inner wall of the cavity of the steel sleeve is welded to the truss beam.

[0007] In one embodiment, the cavity may optionally have the same or different cross-sectional shape as the truss beam.

[0008] In one embodiment, preferably, the cross-section of the cavity is trapezoidal or rectangular, and the cross-section of the truss beam is trapezoidal or rectangular.

[0009] In one embodiment, preferably, the cavity has a bottom surface, and the lower chord of the truss beam is supported on the bottom surface of the cavity.

[0010] In one embodiment, preferably, the cavity has a top surface, and the top chord of the truss beam supports the top surface of the cavity.

[0011] In one embodiment, preferably, the web member includes a first web member that connects to a chord on the side plane of the truss beam.

[0012] In one embodiment, preferably, the truss beam includes at least two sides, and the web member further includes a second web member that connects the chord members on different sides.

[0013] In one embodiment, preferably, multiple second web members are distributed at intervals along the length of the truss beam, and two adjacent second web members intersect in an X-shape on the cross section of the truss beam.

[0014] In one embodiment, preferably, the connection node between the first web member and the chord member is a first node, and the connection node between the second web member and the chord member is a second node, with the second node on the same chord member located at the midpoint between two adjacent first nodes.

[0015] In one embodiment, preferably, the truss beam has support frames at both ends that connect all the chords.

[0016] In one embodiment, preferably, the steel sleeve of the steel structure beam has a notch along the length direction on the top plate.

[0017] In one embodiment, preferably, a plurality of connecting plates are welded into the notch, the connecting plates connecting the steel sleeves on both sides of the notch, and the plurality of connecting plates are spaced apart along the length of the steel sleeves.

[0018] Another aspect of this utility model provides a composite beam, which may include: a plurality of steel structural beams as described in any of the above descriptions, the plurality of steel structural beams being arranged in parallel and spaced apart; and a plurality of connecting pipes passing through the plurality of steel structural beams to connect the plurality of steel structural beams, the plurality of connecting pipes being spaced apart along the length direction of the steel structural beams.

[0019] In one embodiment, preferably, the connecting pipe is perpendicular to the steel structure beam.

[0020] In one embodiment, preferably, the steel sleeve of the steel structure beam has connecting holes at the same height on both sides, and the connecting pipe passes through the connecting holes. The line connecting the corresponding connecting holes on both sides of the steel sleeve does not intersect with the web members in the truss beam.

[0021] In one embodiment, preferably, the cross-section of the connecting pipe is rectangular, and the connecting pipe passes through the plurality of steel structure beams with the longer side of the rectangular cross-section as the vertical side.

[0022] This utility model also provides a beam-slab, which may include: a plurality of steel structural beams as described in any of the above descriptions, the plurality of steel structural beams being arranged in parallel and spaced apart; a plurality of connecting pipes passing through the plurality of steel structural beams to connect the plurality of steel structural beams, the plurality of connecting pipes being spaced apart along the length direction of the steel structural beams; a plurality of panels, the plurality of panels being embedded between two adjacent steel structural beams and mounted on the connecting pipes, the dimensions of the panels being configured such that the plurality of panels and the top surfaces of the plurality of steel structural beams are spliced ​​together to form a plane; and a top plate, covering the plane formed by the splicing of the top surfaces of the plurality of steel structural beams and the plurality of panels.

[0023] In one embodiment, preferably, the beam plate provided by the present invention further includes multiple pads, which are placed between the top surface of the connecting pipe and the insert plate, and the sum of the heights of the pads and the insert plate makes up the height difference between the top surface of the connecting pipe and the top surface of the steel structure beam.

[0024] In one embodiment, preferably, the length of the pad is the distance between two adjacent steel structural beams, and the width of the pad does not exceed the width of the top surface of the connecting pipe.

[0025] In one embodiment, preferably, the multiple connecting pipes are arranged at equal intervals, the length of the panel is an integer multiple of the distance between two adjacent connecting pipes, and multiple panels between two adjacent steel structure beams are seamlessly spliced ​​in the area between the two steel structure beams.

[0026] The steel structure beam, composite beam, and beam-slab provided by this utility model have a truss beam structure in the steel structure beam that provides stable support for the overall structure, thereby improving the load-bearing capacity and stability of the beam. At the same time, the steel structure beam is easy to assemble and can be flexibly combined into composite beams or beam-slabs as needed, thus being applicable to various scenarios and having wide applicability. Attached Figure Description

[0027] The above-described features and advantages of this invention can be better understood after reading the following detailed description of the embodiments of this disclosure in conjunction with the accompanying drawings. In the drawings, the components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals.

[0028] Figure 1 This is a structural schematic diagram of a steel beam according to an embodiment of the present invention;

[0029] Figure 2 This is a structural schematic diagram of a truss beam in a steel structure beam, according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the steel sleeve in a steel structure beam, drawn according to an embodiment of the present invention;

[0031] Figure 4 This is a partially enlarged view of the truss beam structure in a steel structure beam according to an embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the truss beam structure in a steel structure beam from the end view, according to an embodiment of the present invention.

[0033] Figure 6 This is a partially enlarged view of a steel beam structure according to an embodiment of the present invention;

[0034] Figure 7 This is a structural schematic diagram of a composite beam according to an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the composite beam with the steel sleeve concealed, drawn according to an embodiment of the present invention;

[0036] Figure 9 This is a structural schematic diagram of a beam-slab according to an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of a device structure for concealing the top plate and two insert plates in a beam slab according to an embodiment of the present invention; and

[0038] Figure 11 yes Figure 10 A magnified view of a portion of the composite beam structure.

[0039] For clarity, a brief explanation of the reference numerals in the accompanying drawings is provided below:

[0040] 100 steel structure beam

[0041] 101 Steel Sleeve

[0042] 102 Truss Beam

[0043] 103 String

[0044] 104 web members

[0045] 105 lumen

[0046] 106 Connecting holes

[0047] 201, 204 First web member

[0048] Stringers 202, 203, 205, 206

[0049] 207, 208 Second web members

[0050] 209 First Node

[0051] 210 Second Node

[0052] 211 Supporting Frame

[0053] 601 Gap

[0054] 602 connecting board

[0055] 700 composite beam

[0056] 701 Steel Structure Beam

[0057] 702 connecting pipe

[0058] 801 connecting pipe

[0059] 802 Truss Beam

[0060] 900 beams and slabs

[0061] 901 Steel Structure Beam

[0062] 902 connecting pipe

[0063] 903 Panel

[0064] 904 Top Plate

[0065] 905 pad Detailed Implementation

[0066] The following specific embodiments 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. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description.

[0067] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0068] Furthermore, the terms "upper," "lower," "left," "right," "top," "bottom," "horizontal," and "vertical" used in the following description should be understood as the orientations shown in the relevant paragraphs and accompanying drawings. These relative terms are for illustrative purposes only and do not imply that the described device must be manufactured or operated in a specific orientation; therefore, they should not be construed as limiting the scope of this invention.

[0069] It is understood that although terms such as "first," "second," and "third" may be used herein to describe various components, regions, layers, and / or parts, these components, regions, layers, and / or parts should not be limited by these terms, and these terms are only used to distinguish different components, regions, layers, and / or parts. Therefore, the first component, region, layer, and / or part discussed below may be referred to as the second component, region, layer, and / or part without departing from some embodiments of this utility model.

[0070] To overcome the aforementioned deficiencies in the existing technology, this utility model provides a steel structure beam, a composite beam, and a beam-slab. The truss beam structure in the steel structure beam provides stable support for the overall structure, thereby improving the load-bearing capacity and stability of the beam. At the same time, the steel structure beam is easy to assemble and can be flexibly combined into composite beams or beam-slabs as needed, thus being applicable to various scenarios and having wide applicability.

[0071] Figure 1 This is a structural schematic diagram of a steel beam according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of a truss beam in a steel structure beam, according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the steel sleeve in a steel structure beam, drawn according to an embodiment of the present invention.

[0072] Please refer to Figure 1 The steel structure beam 100 provided by this utility model may include: a steel sleeve 101 and a truss beam 102.

[0073] Please refer to the reference. Figure 1 , Figure 2 The truss beam 102 in this utility model is provided with at least three chords and multiple web members 104. Figure 1 , 2 The embodiment shown includes four chords 103, with two of the chords 103 connected to the two ends of the web member 104.

[0074] These chords and web members can be made of either hollow steel pipes or solid threaded steel or other steel materials.

[0075] Please combine Figures 1-3The steel sleeve 101 has a cavity 105. The truss beam 102 is disposed in the cavity 105, and the inner wall of the cavity 105 of the steel sleeve 101 is welded to the truss beam 102.

[0076] Optionally, the cross-sectional shape of the cavity 105 may be the same as or different from that of the truss beam 102.

[0077] For example, the cross-section of the cavity 105 can be trapezoidal or rectangular, and the cross-section of the truss beam 102 can be trapezoidal or rectangular. The truss beam only needs to be placed inside the cavity, and the shape of the two is not limited.

[0078] It is understood that the trapezoidal or rectangular cross-section of the steel structure beam is merely a preferred embodiment, intended to clearly illustrate the internal structural composition of the steel structure beam provided by this utility model, and not to limit the scope of protection of this utility model. In practice, steel structure beams of, for example, triangular or inverted triangular shapes can also be used according to actual needs, matched with corresponding truss beams and steel sleeve structures, and similar structures should be included within the scope of protection of this utility model.

[0079] Furthermore, in one embodiment, the cavity has a bottom surface, and the lower chord of the truss beam is supported on the bottom surface of the cavity.

[0080] Understandably, the design of the bottom surface of the tube provides more stable support than, for example, an inverted triangular steel beam, thus improving the structural stability.

[0081] Furthermore, in one embodiment, the cavity has a top surface, and the upper chord of the truss beam supports the top surface of the cavity.

[0082] Similarly, the top structure can provide stable support to the upper part, improving the structural stability. Therefore, the steel structure beam provided by this utility model preferably adopts a rectangular or trapezoidal truss beam and a steel sleeve structure, which improves the overall stability of the beam from the structural design perspective.

[0083] Figure 4 This is a partially enlarged view of the truss beam structure in a steel structure beam according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the truss beam structure in a steel structure beam, drawn according to an embodiment of the present invention, from the end view.

[0084] Please refer to Figure 4 In the steel structure beam provided by this utility model, the web members of the truss beam include a first web member, which connects to the chord members on the side plane of the truss beam.

[0085] like Figure 4 As shown, the first web member 201 is connected Figure 4The two chord members 202 and 203 on the front side of the middle truss beam 102 are connected by the first web member 204. Figure 4 The two chord members 205 and 206 on the rear side of the middle truss beam 102.

[0086] Understandably, the first web member is located in the side plane of the truss beam, transmitting shear force in the two-dimensional plane of the side, thereby improving the stability of the truss beam on the side.

[0087] More preferably, in one embodiment of the steel structure beam provided by this utility model, the truss beam includes at least two sides, and the web member also includes a second web member, which connects the chord members on different sides.

[0088] For example, in Figure 4 In the embodiment shown, the second web member 207 connects the chord members 202 and 206 on different sides, and the second web member 208 connects the chord members 203 and 205.

[0089] Understandably, the second web member is a spatial web member in a truss beam structure, which bears the multidimensional shear force and spatial torque component inside the truss beam, transmits torque and provides support to resist the stress deformation of the beam section.

[0090] exist Figure 4 , 5 In the illustrated embodiment, multiple second web members are spaced apart along the length of the truss beam, and adjacent second web members, such as second web members 207 and 208, intersect in an X-shape on the cross-section of the truss beam 102. (Combined with...) Figure 5 From this perspective, the spatial arrangement can be clearly seen.

[0091] In a preferred embodiment of this utility model, the connection node between the first web member and the chord member is a first node, and the connection node between the second web member and the chord member is a second node. The second node on the same chord member is located in the middle position between two adjacent first nodes.

[0092] You can refer to the following: Figure 4 The first node 209 and the second node 210 on the middle chord 202. It is easy to understand that the spatial arrangement of the first node and the second node can further make the truss beam structure more uniformly stressed, thereby better supporting the steel beam and improving the structural stability.

[0093] You can continue to refer to this. Figure 4 In a preferred embodiment of the present invention, the truss beam 102 is provided with support frames 211 at both ends that connect all the chords. Figure 4 The image shows the support frame 211 at one end of the truss beam 102. The structure at the other end is similar and will not be described in detail.

[0094] Figure 6 This is a partially enlarged view of a steel beam structure according to an embodiment of the present invention.

[0095] Please refer to Figure 6 In one embodiment of the present invention, the steel sleeve 101 of the steel structure beam 100 has a notch 601 on the top plate along the length direction.

[0096] Understandably, the notch 601 facilitates the welding and other processing operations of the truss beam and the inner wall of the steel sleeve by extending into the interior of the steel structure beam. At the same time, cement can also be poured through the notch, and the notch further facilitates the internal processing of the steel structure beam.

[0097] Further, more preferably, in one embodiment, such as Figure 6 As shown, multiple connecting plates 602 are welded inside the notch 601. The connecting plates 602 connect the steel sleeves on both sides of the notch 601. The multiple connecting plates 602 are distributed at intervals along the length of the steel sleeve 101.

[0098] The connecting plate connects the steel sleeves on both sides of the notch, which can improve the stability of the steel sleeve structure, thereby improving the stability and service life of the overall steel structure beam device.

[0099] Figure 7 This is a structural schematic diagram of a composite beam according to an embodiment of the present invention.

[0100] Please refer to Figure 7 Another aspect of this utility model provides a composite beam 700, which may include: a plurality of steel structure beams 701 as described in any of the above descriptions, the plurality of steel structure beams 701 being arranged in parallel and spaced apart; and a plurality of connecting pipes 702 passing through the plurality of steel structure beams 701 to connect the plurality of steel structure beams 701, the plurality of connecting pipes 702 being spaced apart along the length direction of the steel structure beams 701.

[0101] By combining and connecting pipes, the structural composition of composite beams can be flexibly constructed to adapt to different application scenarios.

[0102] In an alternative embodiment, such as Figure 7 As shown, the cross-section of the connecting pipe 702 is rectangular, and the connecting pipe 702 passes through the multiple steel structure beams 701 with the longer side of the rectangular cross-section as the vertical side.

[0103] It should be noted that the shape and structure of the connecting pipe described here are merely illustrative examples, intended to provide a preferred embodiment to illustrate the device structure of the composite beam provided by this utility model, and are not intended to limit the scope of protection of this utility model. Rectangular connecting pipes facilitate material processing and assembly. In fact, connecting pipes can also be of other shapes and structures; similar structures can be applied to the composite beam provided by this utility model and should all be included within the scope of protection of this utility model.

[0104] In a preferred embodiment, references can be used. Figure 7 The connecting pipe 702 is perpendicular to the steel structure beam 701. It is easy to understand that the vertical structural arrangement facilitates assembly and construction, as well as the uniformity of material processing.

[0105] Furthermore, in one embodiment, please refer to Figure 3 You can also refer to the following: Figure 7 The steel sleeve 101 of the steel structure beam has connecting holes 106 at the same height on both sides. The connecting pipe passes through the connecting holes 106. The line connecting the corresponding connecting holes 106 on both sides of the steel sleeve 101 does not intersect with the web members in the truss beam. (Refer to the reference.) Figure 8 .

[0106] Figure 8 This is a structural schematic diagram of a composite beam with the steel sleeve concealed, according to an embodiment of the present invention.

[0107] Easy to understand, such as Figure 8 As shown, the connecting pipe 801 passes through the truss beam 802 in multiple steel structure beams, and does not intersect with the multiple web members of the truss beam 802 in the steel structure beam, thus facilitating assembly and construction operations.

[0108] Figure 9 This is a structural schematic diagram of a beam-slab according to an embodiment of the present invention.

[0109] Please refer to Figure 9 Another aspect of this utility model provides a beam slab 900, which may include: a plurality of steel structural beams 901 as described in any of the above descriptions, the plurality of steel structural beams 901 being arranged in parallel and spaced apart; a plurality of connecting pipes 902 passing through the plurality of steel structural beams 901 to connect the plurality of steel structural beams 901, the plurality of connecting pipes 902 being spaced apart along the length direction of the steel structural beams 901; a plurality of inserts 903 being embedded between two adjacent steel structural beams and mounted on the connecting pipes 902; and a top plate 904.

[0110] Figure 10 This is a schematic diagram of a device structure for concealing the top plate and two insert plates in a beam slab according to an embodiment of the present invention.

[0111] Please refer to Figure 10 The panel 903 is sized such that multiple panels 903 and the top surfaces of multiple steel structural beams 901 are joined together to form a single plane. Please also consider... Figure 9 The top plate 904 is installed on the plane formed by splicing the top surfaces of the multiple steel structure beams 901 and the multiple panels 903.

[0112] Please refer to the reference. Figure 9 , 10 In a preferred embodiment of this utility model, the multiple connecting pipes 902 are arranged at equal intervals, the length of the panel 903 is an integer multiple of the distance between two adjacent connecting pipes 902, and the multiple panels 903 between two adjacent steel structure beams 901 are seamlessly spliced ​​to the area between the two steel structure beams 901.

[0113] Understandably, equidistant spacing facilitates material processing, preparation, and transportation, streamlines the construction process, and enhances the applicability of the beams and slabs provided by this invention. Seamless splicing further improves the stability of the beam and slab structure.

[0114] Figure 11 yes Figure 10 A magnified view of a portion of the composite beam structure.

[0115] Please refer to Figure 11 At the same time, combined Figure 9 , 10 In a preferred embodiment of the present invention, the beam plate provided by the present invention further includes multiple pads 905. The pads 905 are placed between the top surface of the connecting pipe 902 and the insert plate 903. The sum of the heights of the pads 905 and the insert plate 903 makes up the height difference between the top surface of the connecting pipe 902 and the top surface of the steel structure beam 901.

[0116] More preferably, in one embodiment, references can be used. Figure 11 The length of the pad 905 is the distance between two adjacent steel structure beams 901, and the width of the pad 905 does not exceed the width of the top surface of the connecting pipe 902.

[0117] It is easy to understand that the setting of the pad 905 provides stability for the laying of the panel 903, while providing compatibility for the processing and assembly height tolerance of multiple connecting pipes. The horizontal consistency of the splicing plane can be achieved by fine-tuning the size of the pad on different connecting pipes, thereby improving the usability of the device.

[0118] This utility model provides a steel structure beam, a composite beam, and a beam-slab. The truss beam structure in the steel structure beam provides stable support for the overall structure, thereby improving the load-bearing capacity and stability of the beam. At the same time, the steel structure beam is easy to assemble and can be flexibly combined into composite beams or beam-slabs as needed, thus being applicable to various scenarios and having wide applicability.

[0119] The prior description of this disclosure is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not intended to be limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel structure beam, characterized in that, include: A steel sleeve, wherein the steel sleeve is provided with a lumen; and A truss beam, wherein the truss beam has at least three chords and multiple web members, and the two ends of the web members are connected to two of the chords; The truss beam is disposed in the cavity, and the inner wall of the steel sleeve cavity is welded to the truss beam.

2. The steel structure beam as described in claim 1, characterized in that, The cavity may have the same or different cross-sectional shape as the truss beam.

3. The steel structure beam as described in claim 2, characterized in that, The cross-section of the cavity is trapezoidal or rectangular, and the cross-section of the truss beam is trapezoidal or rectangular.

4. The steel structure beam as described in claim 1, characterized in that, The cavity has a bottom surface, and the lower chord of the truss beam is supported on the bottom surface of the cavity.

5. The steel structure beam as described in claim 1, characterized in that, The cavity has a top surface, and the upper chord of the truss beam supports the top surface of the cavity.

6. The steel structure beam as described in claim 1, characterized in that, The web member includes a first web member, which is connected to a chord member on the side plane of the truss beam.

7. The steel structure beam as described in claim 6, characterized in that, The truss beam includes at least two sides, and the web member also includes a second web member, which connects the chord members on different sides.

8. The steel structure beam as described in claim 7, characterized in that, Multiple second web members are distributed at intervals along the length of the truss beam, and two adjacent second web members intersect in an X-shape on the cross section of the truss beam.

9. The steel structure beam as described in claim 7, characterized in that, The connection node between the first web member and the chord member is the first node, and the connection node between the second web member and the chord member is the second node. The second node on the same chord member is located in the middle position between two adjacent first nodes.

10. The steel structure beam as described in claim 1, characterized in that, The truss beam has support frames at both ends that connect all the chords.

11. The steel structure beam as described in claim 1, characterized in that, The steel sleeve of the steel structure beam has a notch along its length on the top plate.

12. The steel structure beam as described in claim 11, characterized in that, Multiple connecting plates are welded inside the notch, and the connecting plates connect the steel sleeves on both sides of the notch. The multiple connecting plates are distributed at intervals along the length of the steel sleeves.

13. A composite beam, characterized in that, include: Multiple steel structure beams as described in any one of claims 1 to 12, wherein the multiple steel structure beams are arranged in parallel and spaced apart; as well as Multiple connecting pipes pass through the multiple steel structure beams to connect them, and the multiple connecting pipes are spaced apart along the length of the steel structure beams.

14. The composite beam as described in claim 13, characterized in that, The connecting pipe is perpendicular to the steel structure beam.

15. The composite beam as described in claim 14, characterized in that, The steel sleeve of the steel structure beam has connection holes at the same height on both sides. The connection pipe passes through the connection holes, and the line connecting the corresponding connection holes on both sides of the steel sleeve does not intersect with the web members in the truss beam.

16. The composite beam as described in claim 13, characterized in that, The connecting pipe has a rectangular cross-section, and the connecting pipe passes through the multiple steel structure beams with the longer side of the rectangular cross-section as the vertical side.

17. A beam-slab structure, characterized in that, include: Multiple steel structure beams as described in any one of claims 1 to 12, wherein the multiple steel structure beams are arranged in parallel and spaced apart; Multiple connecting pipes pass through the multiple steel structure beams to connect the multiple steel structure beams, and the multiple connecting pipes are spaced apart along the length direction of the steel structure beams; Multiple panels are embedded between two adjacent steel structural beams and mounted on the connecting pipe. The dimensions of the panels are configured such that the top surfaces of the multiple panels and the multiple steel structural beams are joined together to form a single plane. The top plate is installed on the plane formed by splicing the top surfaces of the multiple steel structure beams and the multiple panels.

18. The beam-slab as described in claim 17, characterized in that, It also includes multiple pads, which are placed between the top surface of the connecting pipe and the insert plate. The sum of the heights of the pads and the insert plate makes up the height difference between the top surface of the connecting pipe and the top surface of the steel structure beam.

19. The beam-slab as described in claim 18, characterized in that, The length of the pad is the distance between two adjacent steel structural beams, and the width of the pad does not exceed the width of the top surface of the connecting pipe.

20. The beam-slab as described in claim 17, characterized in that, The multiple connecting pipes are arranged at equal intervals, and the length of the panel is an integer multiple of the distance between two adjacent connecting pipes. Multiple panels between two adjacent steel structure beams are seamlessly spliced ​​to fill the area between the two steel structure beams.

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