A precast steel beam with integrated decoration

Abstract

This utility model relates to a precast steel beam with integrated decoration, comprising an H-beam and two fireproof plates. The two fireproof plates are respectively disposed on opposite sides of the H-beam to sandwich the H-beam between the two fireproof plates. The two fireproof plates are connected to the H-beam by tie rods. Compared with traditional steel beams, this arrangement reduces the workload of applying fireproof coating to the steel beam and improves the on-site construction speed. At the same time, it avoids coating peeling and improves fire resistance.

Description

Technical Field

[0001] This utility model relates to the field of building decoration technology, and in particular to a prefabricated steel beam with integrated decoration. Background Technology

[0002] Currently, beams are structural members supported by supports, bearing primarily bending moment and shear force, with bending being the main deformation. Beams bear the entire weight of the components in the superstructure of a building, as well as the roof (floor) surface, making them the most important part of the building's superstructure. Due to their light weight and excellent mechanical properties at room temperature, steel beams are widely used in buildings.

[0003] Fires cause a decline in the mechanical properties of steel; when the temperature reaches 600℃, steel will lose most of its strength and stiffness. Therefore, steel beams are extremely susceptible to damage and structural collapse in a fire, making fire a significant challenge for steel structure buildings. Current fire protection measures for steel beams involve spraying (or troweling) fire-retardant coatings onto the beams on-site. However, applying the fire-retardant coating after on-site installation is labor-intensive and slows down construction; furthermore, the fire-retardant coating has poor outdoor durability, posing a risk of coating detachment and injury to people on roof steel beams. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a prefabricated steel beam with integrated decoration. Its advantages are that it can greatly reduce the workload of applying fireproof coating to steel beams, can be prefabricated in the factory, is not limited by site conditions, and improves the on-site construction speed; at the same time, it avoids coating peeling and improves fire resistance.

[0005] The above-mentioned utility model objective is achieved through the following technical solution: a precast steel beam with integrated decoration, comprising an H-beam and two fireproof plates, wherein the two fireproof plates are respectively disposed on opposite sides of the H-beam to sandwich the H-beam between the two fireproof plates, and the two fireproof plates are connected to the H-beam by tie rods.

[0006] Preferably, the fireproof board of the precast steel beam with integrated decoration provided by this utility model is made of UHPC precast concrete slab.

[0007] Preferably, in the precast steel beam with integrated decoration provided by this utility model, the fireproof board has a groove on the side away from the H-beam, and the end of the tie rod is located in the groove and is threadedly connected to the nut.

[0008] Preferably, the decorative precast steel beam provided by this utility model includes an H-beam comprising a web and two flanges, wherein the web is disposed between the two flanges and the web is perpendicular to the flanges.

[0009] Preferably, in the precast steel beam with integrated decoration provided by this utility model, two stiffening plates are provided between the web and each of the flanges. The two stiffening plates are respectively inclinedly arranged on opposite sides of the web and symmetrically arranged. One end of the stiffening plate is connected to the side wall of the web, and the other end of the stiffening plate is connected to the side of the flange facing the web. A preset angle is provided between the stiffening plate and the web.

[0010] Preferably, the prefabricated steel beam with integrated decoration provided by this utility model has a preset angle range of 35°-40°.

[0011] Preferably, in the precast steel beam with integrated decoration provided by this utility model, a stud is provided on the top surface of the flange located on the upper part of the web, and the bottom end of the stud is welded to the top surface of the flange.

[0012] Preferably, in the precast steel beam with integrated decoration provided by this utility model, both ends of the H-beam are provided with sealing plates, and the sealing plates are welded to the H-beam.

[0013] Preferably, in the precast steel beam with integrated decoration provided by this utility model, an mounting plate is provided on the sealing plate, and the mounting plate is perpendicular to the sealing plate.

[0014] Preferably, the H-beam of the precast steel beam with integrated decoration provided by this utility model is made of Q355B steel.

[0015] In summary, the beneficial technical effects of this utility model are as follows: The decorative integrated precast steel beam provided in this application includes an H-beam and two fireproof plates. The two fireproof plates are respectively disposed on opposite sides of the H-beam to sandwich the H-beam between the two fireproof plates. The two fireproof plates are connected to the H-beam by tie rods. Compared with traditional steel beams, this arrangement reduces the workload of applying fireproof coating to the steel beam and improves the on-site construction speed. At the same time, it avoids coating peeling and improves fire resistance. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the prefabricated steel beam with integrated decoration provided in this embodiment of the utility model.

[0017] Figure 2 This is a front view of the prefabricated steel beam with integrated decoration provided in this embodiment of the utility model.

[0018] Figure 3 This is a schematic diagram of the connection structure between the precast slab and the tie rod in the precast steel beam with integrated decoration provided in this utility model embodiment.

[0019] Figure 4This is a schematic diagram of the connection structure between the stiffening plate and the H-beam in the precast steel beam with integrated decoration provided in this utility model embodiment.

[0020] In the diagram, 1 is a precast steel beam with integrated decoration; 10 is an H-beam; 11 is a web; 12 is a flange; 13 is a stiffening plate; 14 is a stud; 20 is a fireproof board; 21 is a wire mesh; 22 is a groove; 30 is a tie rod; 40 is a sealing plate; 41 is a mounting plate; and 411 is a bolt hole. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] Reference Figure 1 and Figure 2 The present invention discloses a precast decorative steel beam 1, comprising an H-beam 10 and two fireproof plates 20. The two fireproof plates 20 are respectively disposed on opposite sides of the H-beam 10 to sandwich the H-beam 10 between the two fireproof plates 20. The two fireproof plates 20 are connected to the H-beam 10 by tie rods 30. Compared with traditional steel beams, this arrangement reduces the workload of applying fireproof coating to the steel beam and improves the on-site construction speed. At the same time, it avoids coating peeling and improves fire resistance.

[0023] Specifically, with Figure 1 Taking the orientation shown as an example, two fireproof boards 20 are respectively set on the left and right sides of the H-beam 10 so that the H-beam 10 is sandwiched between the two fireproof boards 20.

[0024] like Figure 2 As shown, in this embodiment, two fireproof boards 20 are connected to H-beams 10 by two rows of parallel tie rods 30. Each row of tie rods 30 includes several tie rods 30, which are spaced apart along the length of the H-beams 10. By setting the tie rods 30, the connection strength of the two fireproof boards 20 is improved, and cracks in the fireproof boards 20 are avoided during use.

[0025] In this embodiment, the H-beam 10 is made of Q355B steel. Of course, other types of steel can also be used for the H-beam 10, and this embodiment does not impose any restrictions on this.

[0026] Reference Figure 1 In this embodiment, the H-beam 10 includes a web 11 and two flanges 12. The web 11 is disposed between the two flanges 12 and the web 11 is perpendicular to the flanges 12.

[0027] The inner wall of the fireproof board 20 is attached to the side wall of the two flanges 12 on the same side.

[0028] Specifically, the top and bottom ends of the web 11 are connected to the two flanges 12 respectively, so as to... Figure 1 Taking the orientation shown as an example, a stud 14 is provided on the top surface of the flange 12 located on the upper part of the web 11, and the bottom end of the stud 14 is welded to the top surface of the flange 12.

[0029] In this embodiment, two rows of studs 14 are arranged parallel to each other on the top surface of the flange 12 located on the upper part of the web plate 11. Each row includes multiple studs 14, and the multiple studs 14 are spaced apart along the length direction of the H-beam 10. By setting studs 14, the decorative precast steel beam 1 is connected to the upper frame of the building through studs 14.

[0030] Reference Figure 2 In this embodiment, both ends of the H-beam 10 are provided with sealing plates 40, which are welded to the H-beam 10.

[0031] Specifically, with Figure 2 Taking the orientation shown as an example, both the left and right ends of the H-beam 10 are equipped with sealing plates 40.

[0032] The sealing plate 40 is provided with an mounting plate 41, which is perpendicular to the sealing plate 40.

[0033] Specifically, the mounting plate 41 has multiple bolt holes 411, and the prefabricated steel beam 1 with integrated decoration is connected to the external components through the mounting plate 41.

[0034] Continue to refer to Figure 4 In this embodiment, in order to improve the strength of the H-beam 10, two stiffening plates 13 are provided between the web 11 and each flange 12. The two stiffening plates 13 are respectively inclinedly arranged on opposite sides of the web 11 and symmetrically arranged. One end of the stiffening plate 13 is connected to the side wall of the web 11, and the other end of the stiffening plate 13 is connected to the side of the flange 12 facing the web 11. A preset angle is provided between the stiffening plate 13 and the web 11.

[0035] The preset angle ranges from 35° to 40°. In this embodiment, the preset angle is 38.7°.

[0036] Among them, fireproof board 20 includes, but is not limited to, UHPC precast concrete board.

[0037] It should be noted that UHPC precast concrete slabs are well known to those in the field, and their structure will not be described in detail here.

[0038] In the feasible method of using UHPC precast concrete slabs for fireproof board 20, a wire mesh 21 is provided inside the fireproof board 20. The wire mesh 21 is composed of transverse and longitudinal wires, and the spacing of different wires meets the requirements of the specifications.

[0039] Continue to refer to Figure 3In this embodiment, the fireproof plate 20 has a groove 22 on the side away from the H-beam 10, and the end of the tie rod 30 is located in the groove 22 and is threadedly connected to the nut.

[0040] It should be noted that the number of grooves 22 is basically the same as the number of pull screws 30, and the grooves 22 and pull screws 30 are set in a one-to-one correspondence.

[0041] During the installation process, Figure 3 Taking the orientation shown as an example, the first end of the tie rod 30 passes sequentially through the fireproof plate 20 and the wire mesh 21 inside it on the left side, the web plate 11 of the H-beam 10, and the fireproof plate 20 and the wire mesh 21 inside it on the right side, and is inserted into the groove 22 of the fireproof plate 20 on the right side, and is threadedly connected to the nut. The second end of the tie rod 30 is inserted into the groove 22 of the fireproof plate 20 on the left side, and is threadedly connected to the nut.

[0042] After the tie rod 30 is installed, the groove 22 is sealed with cement mortar.

[0043] The installation process of the precast decorative steel beam 1 provided in this embodiment is as follows: two fireproof boards 20 are respectively placed on opposite sides of the H-beam 10, and the two fireproof boards 20 are connected to the H-beam 10 by tie rods 30. After the tie rods 30 are installed, the grooves 22 are sealed with cement mortar. Figure 2 Taking the orientation shown as an example, two sealing plates 40 are respectively sealed and welded to the left and right ends of the H-beam 10. Each sealing plate 40 is welded with an installation plate 41. Studs 14 are welded to the top surface of the flange 12 located on the upper part of the web plate 11. The prefabricated steel beam 1 with integrated decoration is installed.

[0044] This application provides a precast steel beam 1 with integrated decoration, comprising an H-beam 10 and two fireproof plates 20. The two fireproof plates 20 are respectively disposed on opposite sides of the H-beam 10 to sandwich the H-beam 10 between the two fireproof plates 20. The two fireproof plates 20 are connected to the H-beam 10 by tie rods 30. Compared with traditional steel beams, this arrangement reduces the workload of applying fireproof coating to the steel beam and improves the on-site construction speed. At the same time, it avoids coating peeling and improves fire resistance.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A precast steel beam with integrated decoration, characterized in that: It includes an H-beam and two fireproof plates, with the two fireproof plates respectively disposed on opposite sides of the H-beam to sandwich the H-beam between the two fireproof plates. The two fireproof plates are connected to the H-beam by tie rods.

2. The precast steel beam with integrated decoration as described in claim 1, characterized in that: The fireproof board is made of UHPC precast concrete slab.

3. The precast steel beam with integrated decoration as described in claim 1, characterized in that: The fireproof board has a groove on the side opposite to the H-beam, and the end of the tie rod is located in the groove and is threadedly connected to the nut.

4. The precast steel beam with integrated decoration as described in claim 1, characterized in that: The H-beam includes a web and two flanges, with the web disposed between the two flanges and perpendicular to the flanges.

5. The precast steel beam with integrated decoration as described in claim 4, characterized in that: Two stiffening plates are provided between the web and each of the flanges. The two stiffening plates are respectively inclinedly arranged on opposite sides of the web and symmetrically arranged. One end of the stiffening plate is connected to the side wall of the web, and the other end of the stiffening plate is connected to the side of the flange facing the web. A preset angle is provided between the stiffening plate and the web.

6. The precast steel beam with integrated decoration as described in claim 5, characterized in that: The preset angle ranges from 35° to 40°.

7. The precast steel beam with integrated decoration as described in claim 4, characterized in that: A stud is provided on the top surface of the flange located on the upper part of the web, and the bottom end of the stud is welded to the top surface of the flange.

8. The precast steel beam with integrated decoration as described in claim 1, characterized in that: Both ends of the H-beam are provided with sealing plates, which are welded to the H-beam.

9. The precast steel beam with integrated decoration as described in claim 8, characterized in that: An mounting plate is provided on the sealing plate, and the mounting plate is arranged perpendicular to the sealing plate.

10. The precast steel beam with integrated decoration as described in claim 1, characterized in that: The H-beams are made of Q355B steel.

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