Precast composite beam

Abstract

This utility model belongs to the field of basic building technology and provides a precast composite beam. The precast composite beam includes a beam body and several beam ends. Several first connecting components are provided on the side of the beam body. Each beam end corresponds to one of the first connecting components. A second connecting component is provided at one end of each beam end, and the second connecting component is detachably connected to the first connecting component. Compared with the prior art, the precast composite beam provided by this utility model consists of a beam body and several beam ends provided on the side of the beam body. Furthermore, the second connecting component on the beam end is detachably connected to the first connecting component on the beam body. Therefore, the two ends can be disassembled during transportation and reassembled at the construction site, effectively avoiding the problem of excessive width.

Description

Technical Field

[0001] This utility model belongs to the field of basic building technology, specifically relating to a prefabricated composite beam. Background Technology

[0002] Precast concrete beams are concrete beam components that are prefabricated in a factory and then transported to the construction site for installation. They are one of the important precast components in modern construction engineering. Precast beams are a core component of prefabricated buildings, and their production process encompasses standardized procedures such as formwork assembly, rebar tying, and concrete pouring and curing.

[0003] Based on actual needs, the applicant developed a composite beam consisting of two horizontal beams and several longitudinal beams set between the two horizontal beams. Several cantilever beams, also known as beam ends, are provided on the outer surface of the horizontal beams.

[0004] However, in actual transportation, the ends of the beams are prone to exceeding the transportation width limit. Utility Model Content

[0005] This utility model provides a prefabricated composite beam, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a precast composite beam, comprising:

[0007] The main beam has several first connecting components on its sides;

[0008] Several beam ends correspond one-to-one with the first connecting component. One end of each beam end is provided with a second connecting component, which is detachably connected to the first connecting component.

[0009] In one possible implementation of the precast composite beam provided by this utility model, the beam body includes:

[0010] Several crossbeams are arranged in parallel and at intervals;

[0011] Several longitudinal beams are spaced apart along the length of the transverse beam, and the two ends of the longitudinal beams are flush with the outer surface of the transverse beams. The transverse beams and the longitudinal beams are integrally formed. The ends of the longitudinal beams are provided with the first connecting component.

[0012] In one possible implementation of the precast composite beam provided by this utility model, the first connecting component includes:

[0013] The first end plate is located on the side of the main beam body;

[0014] Several first embedded bars are evenly distributed on the side of the first end plate facing the main beam body. The first embedded bars are embedded in the main beam body and one end is connected to the first end plate.

[0015] Several connectors are fixed to the first end plate.

[0016] In one possible implementation of the precast composite beam provided by this utility model, the end of the first embedded bar away from the first end plate is bent.

[0017] In one possible implementation of the prefabricated composite beam provided by this utility model, the connecting member is a threaded sleeve, which is disposed on the side of the first end plate facing the beam body and is fixedly connected to the first end plate.

[0018] In one possible implementation of the prefabricated composite beam provided by this utility model, the first connecting component further includes a plurality of second embedded bars, and the plurality of threaded sleeves are arranged in a plurality of columns, with the second embedded bars passing through the threaded sleeves in the same column from top to bottom.

[0019] In one possible implementation of the precast composite beam provided by this utility model, the second connecting component includes:

[0020] Two connecting plates are respectively located on both sides of the beam end, connected to the beam end and extending out of the beam end;

[0021] A partition plate is connected between the two connecting plates and fits against the end of the beam.

[0022] The second end plate is located between the two connecting plates and is connected to the end of the two connecting plates away from the beam end; the second end plate has a plurality of through holes, each of which corresponds to a threaded sleeve.

[0023] In one possible implementation of the prefabricated composite beam provided by this utility model, a number of bolts are also included, each bolt corresponding to a threaded sleeve, and the bolts pass through the through holes on the second end plate and are screwed into the threaded sleeves.

[0024] In one possible implementation of the prefabricated composite beam provided by this utility model, the second connecting component further includes a rib plate. The rib plate is disposed on the side of the partition plate facing away from the second end plate, is perpendicular to the partition plate, and is connected to the connecting plate. The rib plate is provided with several through holes.

[0025] In one possible implementation of the precast composite beam provided by this utility model, the second connecting component further includes a reinforcing cage, one end of which is connected to the partition plate and the connecting plate, and the reinforcing cage is embedded in the beam end.

[0026] The beneficial effects of the prefabricated composite beam provided by this utility model are as follows: Compared with the prior art, the prefabricated composite beam provided by this utility model consists of a beam body and several beam ends provided on the side of the beam body. The second connecting part on the beam end is detachably connected to the first connecting part on the beam body. Therefore, the two ends can be disassembled during transportation and reassembled after arriving at the construction site, thereby effectively avoiding the problem of excessive width. Attached Figure Description

[0027] Figure 1 A three-dimensional structural schematic diagram of the prefabricated composite beam provided for an embodiment of this utility model;

[0028] Figure 2 A three-dimensional structural schematic diagram of the main beam of the prefabricated composite beam provided for an embodiment of this utility model;

[0029] Figure 3 A three-dimensional structural schematic diagram of the first connecting component in a prefabricated composite beam provided for an embodiment of this utility model;

[0030] Figure 4 A three-dimensional structural schematic diagram of the second connecting component in a prefabricated composite beam provided for an embodiment of this utility model;

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Main beam; 11. Horizontal beam; 12. Longitudinal beam; 21. First end plate; 22. First embedded reinforcement bar;

[0033] 23. Threaded sleeve; 24. Second embedded reinforcement bar; 30. Beam end; 41. Connecting plate; 42. Partition plate;

[0034] 43. Second end plate; 44. Rib plate; 45. Reinforcing cage; 46. Through hole; 47. Through hole; 50. Bolt. Detailed Implementation

[0035] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0038] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0039] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0040] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0041] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0042] Please refer to the following: Figures 1 to 4 The precast composite beam provided by this utility model will now be described. The precast composite beam includes a beam body 10 and a plurality of beam ends 30. The beam body 10 has a plurality of first connecting parts on its side. The plurality of beam ends 30 correspond one-to-one with the first connecting parts. One end of each beam end 30 has a second connecting part, and the second connecting part is detachably connected to the first connecting part.

[0043] The beneficial effects of the prefabricated composite beam provided in this embodiment of the present invention are as follows: Compared with the prior art, the prefabricated composite beam provided in this embodiment of the present invention is composed of a beam body 10 and a plurality of beam ends 30 provided on the side of the beam body 10, and the second connecting component on the beam end 30 is detachably connected to the first connecting component on the beam body 10. Therefore, the two ends can be disassembled during transportation and reassembled after arriving at the construction site, thereby effectively avoiding the problem of excessive width.

[0044] like Figure 1 and Figure 2 As shown, in a specific embodiment of the prefabricated composite beam provided in this utility model, the beam body 10 includes a plurality of horizontal beams 11 and a plurality of vertical beams 12. The plurality of horizontal beams 11 are arranged in parallel and spaced apart. The plurality of vertical beams 12 are arranged spaced apart along the length direction of the horizontal beams 11, and the two ends of the vertical beams 12 are flush with the outer surface of the horizontal beams 11. The horizontal beams 11 and the vertical beams 12 are integrally formed. The ends of the vertical beams 12 are provided with a first connecting component.

[0045] More specifically, the main beam 10 consists of two horizontal beams 11 and three vertical beams 12, with the two vertical beams 12 evenly distributed between the two horizontal beams 11. The beam ends 30 are aligned with the vertical beams 12.

[0046] It should be noted that the main beam 10 is cast as a single piece, that is, the horizontal beam 11 and the longitudinal beam 12 are connected as a single unit.

[0047] like Figure 1 and Figure 3 As shown, in a specific embodiment of the prefabricated composite beam provided in this utility model, the first connecting component includes a first end plate 21, a plurality of first embedded bars 22 and a plurality of connectors. The first end plate 21 is disposed on the side of the beam body 10; the plurality of first embedded bars 22 are evenly distributed on the side of the first end plate 21 facing the beam body 10, the first embedded bars 22 are embedded in the beam body 10, and one end is connected to the first end plate 21; the plurality of connectors are fixed on the first end plate 21.

[0048] Specifically, the first end plate 21 is attached to the surface of the beam body 10. Several connectors and six first embedded bars 22 are welded to the back of the first end plate 21. During production, the first embedded bars 22 and connectors are embedded in concrete.

[0049] like Figure 1 and Figure 3 As shown, in a specific embodiment of the prefabricated composite beam provided in this utility model, the first embedded reinforcement 22 is bent at the end away from the first end plate 21 so that the first end plate 21 is more firmly connected to the beam body 10.

[0050] like Figure 1 and Figure 3 As shown, in a specific embodiment of the prefabricated composite beam provided in this utility model, the connecting component is a threaded sleeve 23. The threaded sleeve 23 is located on the side of the first end plate 21 facing the beam body 10 and is fixedly connected to the first end plate 21. It should be noted that the fixed connection here refers to the relatively fixed position of the threaded sleeve 23 and the first end plate 21. The threaded sleeve 23 can be welded to the first end plate 21 or set separately.

[0051] Furthermore, such as Figure 1 and Figure 3 As shown, in a specific embodiment of the prefabricated composite beam provided in this utility model, the first connecting component further includes a plurality of second embedded bars 24, and a plurality of threaded sleeves 23 arranged in a plurality of columns, wherein the second embedded bars 24 pass through the threaded sleeves 23 in the same column from top to bottom.

[0052] Specifically, the back of the first end plate 21 is provided with six threaded sleeves 23, arranged in two rows of three. A second embedded reinforcement 24 vertically passes through the three threaded sleeves 23 in this row, making the connection between the threaded sleeves 23 and the beam body 10 more stable. The threaded sleeves 23 are M20, with a threaded hole depth greater than 45mm. The position where the second embedded reinforcement 24 passes through the threaded sleeves 23 is between the bottom of the threaded hole and the bottom of the threaded sleeve 23.

[0053] like Figure 1 and Figure 4 As shown, in a specific embodiment of the prefabricated composite beam provided in this utility model, the second connecting component includes two connecting plates 41, a partition plate 42, and a second end plate 43. The two connecting plates 41 are respectively disposed on both sides of the beam end 30, connected to the beam end 30, and extending out of the beam end 30. The partition plate 42 is connected between the two connecting plates 41 and fits against the end of the beam end 30. The second end plate 43 is disposed between the two connecting plates 41 and connected to the end of the two connecting plates 41 away from the beam end 30. The second end plate 43 is provided with a plurality of through holes 46, and the through holes 46 correspond one-to-one with the threaded sleeves 23.

[0054] like Figure 1 As shown, in a specific embodiment of the prefabricated composite beam provided in this utility model, a plurality of bolts 50 are also included. Each bolt 50 corresponds to a threaded sleeve 23. The bolts 50 pass through the through hole 46 on the second end plate 43 and are screwed to the threaded sleeve 23.

[0055] Specifically, two connecting plates 41 are located on the upper and lower sides of both ends to better transmit the force received; by setting a partition plate 42, the second end plate 43 is separated from the end of the beam end 30 to leave enough installation space for easy installation of bolts 50.

[0056] like Figure 1 and Figure 4 As shown, in a specific embodiment of the prefabricated composite beam provided in this utility model, the second connecting component further includes a rib plate 44. The rib plate 44 is disposed on the side of the partition plate 42 facing away from the second end plate 43, is perpendicular to the partition plate 42, and is connected to the connecting plate 41. The rib plate 44 is provided with a plurality of through holes 47.

[0057] It should be noted that during pouring, the concrete fills the through hole 47, which can effectively improve the stability of the connection between the second connecting component and the beam end 30.

[0058] like Figure 1 and Figure 4 As shown, in a specific embodiment of the precast composite beam provided in this utility model, the second connecting component further includes a steel cage 45, one end of which is connected to the partition plate 42 and the connecting plate 41, and the steel cage 45 is embedded in the beam end 30.

[0059] Specifically, the reinforcing cage 45 is welded to the connecting plate 41 and the partition plate 42 to further improve the stability of the connection between the second connecting component and the beam end 30.

[0060] More specifically, the steel cage 45 consists of four main bars and several ring bars. The four main bars are set perpendicular to the partition plate 42, arranged in a rectangular pattern, and welded to the partition plate 42 and the connecting plate 41. The ring bars are rectangular, fitted outside the four main bars, and connected to the main bars.

[0061] 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 precast composite beam, characterized in that, include: The main beam has several first connecting components on its sides; Several beam ends correspond one-to-one with the first connecting component. One end of each beam end is provided with a second connecting component, which is detachably connected to the first connecting component.

2. The precast composite beam as described in claim 1, characterized in that, The main body of the beam includes: Several crossbeams are arranged in parallel and at intervals; Several longitudinal beams are spaced apart along the length of the transverse beam, and the two ends of the longitudinal beams are flush with the outer surface of the transverse beams. The transverse beams and the longitudinal beams are integrally formed. The ends of the longitudinal beams are provided with the first connecting component.

3. The precast composite beam as described in claim 1, characterized in that, The first connecting component includes: The first end plate is located on the side of the main beam body; Several first embedded bars are evenly distributed on the side of the first end plate facing the main beam body. The first embedded bars are embedded in the main beam body and one end is connected to the first end plate. Several connectors are fixed to the first end plate.

4. The precast composite beam as described in claim 3, characterized in that, The end of the first embedded bar furthest from the first end plate is bent.

5. The precast composite beam as described in claim 3, characterized in that, The connector is a threaded sleeve, which is located on the side of the first end plate facing the beam body and is fixedly connected to the first end plate.

6. The precast composite beam as described in claim 5, characterized in that, The first connecting component further includes several second embedded ribs, and several threaded sleeves are arranged in several columns. The second embedded ribs pass through the threaded sleeves in the same column from top to bottom.

7. The precast composite beam as described in claim 5, characterized in that, The second connecting component includes: Two connecting plates are respectively located on both sides of the beam end, connected to the beam end and extending out of the beam end; A partition plate is connected between the two connecting plates and fits against the end of the beam. The second end plate is located between the two connecting plates and is connected to the end of the two connecting plates away from the beam end; the second end plate has a plurality of through holes, each of which corresponds to a threaded sleeve.

8. The precast composite beam as described in claim 7, characterized in that, It also includes several bolts, each of which corresponds to a threaded sleeve. The bolts pass through the through holes on the second end plate and are screwed into the threaded sleeves.

9. The precast composite beam as described in claim 7, characterized in that, The second connecting component also includes a rib plate, which is disposed on the side of the partition plate facing away from the second end plate, is perpendicular to the partition plate, and is connected to the connecting plate. The rib plate has several through holes.

10. The precast composite beam as described in claim 7, characterized in that, The second connecting component also includes a reinforcing cage, one end of which is connected to the partition and the connecting plate, and the reinforcing cage is embedded in the end of the beam.

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