Spliced steel beam
By designing variable pitch upper and lower flange plates and web structures, combined with sawtooth surfaces and bolted connections, the height adjustment of spliced steel beams is achieved, solving the problems of transportation difficulties and height fixation of existing steel beams, and improving the flexibility and stability of construction.
Patent Information
- Application Number
- CN202422110177.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-29
AI Technical Summary
Existing steel beams are difficult to manufacture and transport in modern buildings, and are highly fixed, unable to be spliced and assembled on demand, and have poor adaptability.
A spliced steel beam is designed, adopting variable pitch upper and lower flange plates and web structures, combined with serrated surfaces and bolted connections, so that the beam main body is adjustable and matched with the beam main body through an adjustable connecting plate.
The height of the steel beam is adjustable on demand, convenient and firm in connection, reducing manufacturing and transportation difficulties, and improving construction flexibility and stability.
Smart Images
Figure CN223048311U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building materials, in particular to a spliced steel beam. Background Art
[0002] In modern construction projects, steel beams, as an important load-bearing structure, are widely used. In steel structure buildings, steel beams are of utmost importance for the building's lifespan. Selecting the correct and appropriate steel beam can not only make the design more reasonable but also control the cost of the entire building. Manufacturing and transporting a single, long steel beam is difficult. Once the design requirements change, the manufactured steel beam may no longer be applicable. Therefore, adopting a spliced design can bring many benefits. In addition, traditional steel beams often have a fixed height and cannot be spliced and assembled into the required height as needed, resulting in poor adaptability. Summary of the Invention
[0003] The purpose of the utility model is to provide a new type of spliced steel beam that is convenient to splice and has an adjustable height as required.
[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0005] A spliced steel beam includes a beam main body and connecting plate members at both ends thereof. The beam main body includes an upper flange plate and a lower flange plate with variable spacing. The upper flange plate is connected downward to a first web plate, and the lower flange plate is connected upward to a second web plate. An empty slot for inserting the first web plate is provided in the middle of the second web plate. The contact surface between the first web plate and the second web plate is a serrated surface. The connecting plate members include an upper plate member and a lower plate member with variable spacing. An empty slot for inserting the end face of the upper flange plate is provided on the upper plate member, and an empty slot for inserting the end face of the lower flange plate is provided on the lower plate member.
[0006] Further, the first web plate is inserted into the empty slot provided in the second web plate from the end face of the second web plate.
[0007] Further, the lower flange plate is connected with a first bolt arranged in a straight line. The first bolt is screwed into the empty slot in the middle of the second web plate from the lower surface of the lower flange plate, and the top end of the first bolt abuts against the bottom end of the first web plate.
[0008] Further, the upper surface of the upper flange plate and the lower surface of the lower flange plate are parallel, and the vertical distance range between the upper surface of the upper flange plate and the lower surface of the lower flange plate is 200 mm to 1000 mm.
[0009] Further, the upper plate member and the lower plate member are connected by a second bolt. An upper and lower through hole for the free rotation of the second bolt is provided in the lower plate member, and a threaded hole for screwing in and connecting the second bolt is provided in the upper plate member.
[0010] Furthermore, the connecting plate member is provided with a through mounting hole, and the upper plate member and the lower plate member have the same thickness.
[0011] Furthermore, the upper plate member and the lower plate member are connected by at least two second bolts.
[0012] Furthermore, the distance between two adjacent first bolts is 100 mm to 500 mm.
[0013] The beneficial effects of adopting the technical solution of the present utility model are as follows:
[0014] 1. A spliced steel beam of the present utility model is provided with a spliced first web and second web, realizing that the height of the beam main body can be adjusted as required.
[0015] 2. A spliced steel beam of the present utility model, in order to adapt to the beam main body with a height adjustable as required, the connecting plate member also adopts a height adjustable design, and the two are conveniently connected in a matching manner.
[0016] 3. A spliced steel beam of the present utility model is provided with first bolts arranged in a straight line, strengthening the support for the first web, firmly splicing the upper half and the lower half of the beam main body, and also restricting the occurrence of lateral relative displacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.
[0018] Figure 1 is the exploded schematic diagram of the present utility model;
[0019] Figure 2 is the three-dimensional structure schematic diagram of the present utility model;
[0020] Figure 3 is Figure 2 the sectional view taken along the line A-A in
[0021] Figure 4 is Figure 2 the enlarged schematic diagram at B in
[0022] In the figure: 1: beam main body; 1a: upper flange plate; 1b: lower flange plate; 1c: first web; 1d: second web; 2: connecting plate member; 2a: upper plate member; 2b: lower plate member; 3: first bolt; 4: second bolt; 5: through mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The present utility model will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model. The present utility model is described in detail using structural schematic diagrams, etc. The schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein.
[0024] Please refer to Figures 1 to 4 , a spliced steel beam, including a beam main body 1 and connecting plate members 2 at both ends thereof. The connecting plate members 2 are provided with through mounting holes 5 for splicing two beam main bodies 1 or connecting the beam main body 1 to other structures of a building; the beam main body 1 includes an upper flange plate 1a and a lower flange plate 1b with variable spacing. The main functions of the flange plates in the beam include bearing bending moments, enhancing bending stiffness, and maintaining lateral stability, etc. The upper surface of the upper flange plate 1a and the lower surface of the lower flange plate 1b are parallel, and the vertical distance range between the upper surface of the upper flange plate 1a and the lower surface of the lower flange plate 1b is 200 mm to 1000 mm. Within this dimension range, the height of the beam main body 1 can be adjusted as required.
[0025] To achieve the spliceability and adjustable spacing of the upper flange plate 1a and the lower flange plate 1b, the upper flange plate 1a is connected downward with a first web 1c, and the lower flange plate 1b is connected upward with a second web 1d. An empty slot for inserting the first web 1c is provided in the middle of the second web 1d. Specifically, during actual splicing, the first web 1c is inserted into the empty slot provided in the second web 1d from the end face of the second web 1d. To prevent the first web 1c from moving relatively up and down after being inserted into the second web 1d in place, the contact surfaces of the first web 1c and the second web 1d are serrated surfaces, and the serrated surfaces of the two match and contact. The serrated surface includes multiple horizontal racks in the up and down direction; at the same time, the lower flange plate 1b is connected with linearly arranged first bolts 3, and the spacing between adjacent two of the first bolts 3 is 100 mm to 500 mm. The first bolts 3 are screwed into the empty slot in the middle of the second web 1d from the lower surface of the lower flange plate 1b. After the first web 1c is inserted into the second web 1d in place, the first bolts 3 are screwed to make them move upward, and the top ends abut against the bottom ends of the first web 1c. The first bolts 3 cooperate with the serrated surface to play a supporting role for the first web 1c, making the connection between the first web 1c and the second web 1d firm, which is equivalent to making the connection between the upper flange plate 1a and the lower flange plate 1b firm.
[0026] To adapt to the beam main body 1 with adjustable height as required, the connecting plate member 2 includes an upper plate member 2a and a lower plate member 2b with variable spacing. The upper plate member 2a and the lower plate member 2b have the same thickness. The upper plate member 2a is provided with an empty slot for inserting the end face of the upper flange plate 1a, and the lower plate member 2b is provided with an empty slot for inserting the end face of the lower flange plate 1b. The beam main body 1 is fixed to the connecting plate member 2 by welding; specifically refer to Figure 3, the upper plate member 2a and the lower plate member 2b are connected by at least two second bolts 4. The second bolts 4 must be provided on both sides of the crossbeam main body 1. Upper and lower through holes for the free rotation of the second bolts 4 are provided in the lower plate member 2b, and threaded holes for screwing in the second bolts 4 are provided in the upper plate member 2a. By screwing the second bolts 4, the threaded sections thereof drive the upper plate member 2a to move away from or close to the lower plate member 2b, so as to realize that the size of the connecting plate member 2 can be adjusted as required.
[0027] The installation of the steel beam is a key step in building construction. The product performance and installation technology have crucial impacts on the stability and safety of the entire structure. When using a spliced steel beam of the present utility model, when inserting the first web 1c from the end face of the second web 1d into the empty slot provided in the second web 1d, by controlling the contact area between the first web 1c and the second web 1d, the height of the crossbeam main body 1 can be controlled. The connecting plate member 2 is also adapted to the crossbeam main body 1 and adopts a height-adjustable design, and the two are conveniently connected in a matching manner; through the connecting plate member 2 at the end of the crossbeam main body 1, the splicing of two crossbeam main bodies 1 or the connection of the crossbeam main body 1 to other structures of the building can be realized, and the splicing or installation difficulty is low, which is convenient for standard construction.
[0028] The above is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. It should be pointed out that for those skilled in the art, without departing from the concept of the present utility model, changes, modifications or additions should all fall within the protection scope of the present utility model.
Claims
1. A spliced steel beam, characterized in that: The invention comprises a crossbeam body (1) and connecting plates (2) at both ends thereof, wherein the crossbeam body (1) comprises an upper flange plate (1a) and a lower flange plate (1b) with variable spacing, wherein the upper flange plate (1a) is connected downwardly to a first web plate (1c), and the lower flange plate (1b) is connected upwardly to a second web plate (1d), wherein a slot is provided in the middle of the second web plate (1d) for inserting the first web plate (1c), and the contact surfaces of the first web plate (1c) and the second web plate (1d) are serrated surfaces; the connecting plate member (2) comprises an upper plate member (2a) and a lower plate member (2b) with variable spacing, wherein the upper plate member (2a) is provided with a slot for inserting the end face of the upper flange plate (1a), and the lower plate member (2b) is provided with a slot for inserting the end face of the lower flange plate (1b).
2. A spliced steel beam according to claim 1, characterized in that: The first web (1c) is inserted into a recess provided in the second web (1d) from the end face of the second web (1d).
3. A spliced steel beam according to claim 2, characterized in that: The lower flange plate (1b) is connected with first bolts (3) arranged in a straight line. The first bolts (3) are screwed from the lower surface of the lower flange plate (1b) into the empty groove in the middle of the second web (1d). The top end of the first bolt (3) abuts against the bottom end of the first web (1c).
4. The spliced steel beam according to claim 3, characterized in that: The upper surface of the upper flange plate (1a) and the lower surface of the lower flange plate (1b) are parallel, and the vertical distance between the upper surface of the upper flange plate (1a) and the lower surface of the lower flange plate (1b) ranges from 200 mm to 1000 mm.
5. The spliced steel beam according to claim 1, characterized in that: The upper plate (2a) and the lower plate (2b) are connected by a second bolt (4); the lower plate (2b) is provided with upper and lower through holes for the second bolt (4) to rotate freely; the upper plate (2a) is provided with a threaded hole for the second bolt (4) to be screwed in.
6. The spliced steel beam according to claim 5, characterized in that: The connecting plate (2) is provided with a through mounting hole (5), and the thickness of the upper plate (2a) and the lower plate (2b) are equal.
7. The spliced steel beam according to claim 6, characterized in that: The upper plate (2a) and the lower plate (2b) are connected by at least two second bolts (4).
8. The spliced steel beam according to claim 3, characterized in that: The spacing between two adjacent first bolts (3) is 100 mm to 500 mm.