A steel truss composite wall applied to prefabricated electrical room

Abstract

The application provides a steel truss type composite wall applied to a prefabricated electrical room, and relates to the technical field of prefabricated steel structures, which comprises a structural framework and a composite wall structure; the structural framework is composed of multiple main trusses, multiple lateral supports and a peripheral frame; the main trusses and the lateral supports are welded to form a cross-shaped framework; and the peripheral frame is arranged around the outside of the cross-shaped framework and is welded thereto; the composite wall structure comprises, from outside to inside, an outer decorative plate, an outer sealing plate, a middle filler, an inner sealing plate and an inner decorative plate; the outer sealing plate is welded to the main trusses and the peripheral frame; and the inner sealing plate is connected and fixed to the main trusses and the lateral supports. The wall body can resist lateral load by itself without relying on an additional support framework; the traditional multiple-process manufacturing is combined into a finished product for installation, thereby significantly improving the manufacturing efficiency of the prefabricated electrical room; and the wall body has excellent heat preservation, fireproofing, durability and air tightness.

Description

Technical Field

[0001] This invention relates to the field of prefabricated steel structure technology, and more particularly to a steel truss composite wall for use in prefabricated electrical rooms. Background Technology

[0002] The construction methods for steel structure houses have developed over many years, resulting in a complete and mature technical system, construction solutions, and related supporting building materials industry. However, this system is based on on-site construction, and all technical solutions and construction methods serve the on-site construction needs.

[0003] Prefabricated steel structure houses, especially prefabricated electrical rooms, are characterized by being factory-produced and assembled. After electrical equipment is installed, the finished product is shipped and can be quickly installed and put into use on-site. Using traditional wall construction, the manufacturing process requires five sequential steps: welding the frame, painting, installing the inner panels, installing insulation, and installing the outer panels. Furthermore, these steps are subject to sequential constraints and cannot be carried out concurrently. Rework in any step directly impacts subsequent steps, significantly hindering production and assembly efficiency.

[0004] While using prefabricated composite walls can integrate the installation of inner panels, insulation, and outer panels, thereby improving production and assembly efficiency, existing products on the market still have limitations. These products cannot simultaneously meet the multifaceted requirements of electrical room walls for durability, insulation, fire resistance, and lateral force resistance. In practical applications, such walls often require a steel structural support frame, such as lightweight steel purlins, to resist lateral forces, and require additional protection to ensure their durability. Therefore, they fail to fundamentally solve the problem of the overall performance and manufacturing efficiency of prefabricated electrical room walls. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a steel truss composite wall system for prefabricated electrical rooms. The invention employs an integrated inner and outer sealing panel within a lateral force-resisting skeleton composed of a main truss, lateral supports, and an outer frame, achieving prefabricated installation and efficient manufacturing of the prefabricated electrical room composite wall system.

[0006] To achieve the above objectives, the present invention provides a steel truss composite wall for use in prefabricated electrical rooms, comprising: a structural frame and a composite wall structure;

[0007] The structural framework consists of multiple main trusses, multiple lateral supports, and an outer frame; the multiple main trusses and the multiple lateral supports form a grid-shaped framework, and the outer frame surrounds and is welded to the outside of the grid-shaped framework; The composite wall structure comprises, from the outside in, an outer decorative panel, an outer sealing panel, a central filling, an inner sealing panel, and an inner decorative panel; the outer sealing panel is welded to the main truss and the outer frame, and the inner sealing panel is connected and fixed to the main truss and the lateral supports.

[0008] Furthermore, the main truss is formed by welding rectangular steel tubes as chords and round steel as diagonal web members.

[0009] Furthermore, the lateral support is a rectangular steel pipe, and the lateral support is welded to the inner chord of the main truss in the vertical direction.

[0010] Furthermore, the outer frame is constructed of bent angle steel.

[0011] Furthermore, the outer sealing plate is welded to the outer chord of the main truss and the outer frame.

[0012] Furthermore, the central section is filled with high-density rock wool board, which is fixed by welded insulation nails when its thickness is less than the height of the main truss.

[0013] Furthermore, the inner sealing plate is a fireproof calcium silicate board, and the inner sealing plate is connected to the inner chord and lateral support of the main truss by fasteners.

[0014] Furthermore, the outer frame is provided with a flange-type mounting interface for connecting to the main structure via bolts, and the contact surface between the outer frame and the main structure is provided with a rubber sealing strip.

[0015] Furthermore, the inner decorative panel is a finished profiled steel sheet, color-coated sheet, or aluminum composite panel, etc., and is fixed to the inner sealing panel by fasteners.

[0016] By adopting the above technical solution, the present invention has the following advantages compared with the prior art: 1. The present invention provides a steel truss composite wall for use in prefabricated electrical rooms. By utilizing a structural skeleton composed of a main truss, lateral supports and an outer frame, the truss structure can resist lateral loads on its own through its bending resistance. At the same time, the outer frame transfers the load to the main structural columns, solving the problem that traditional walls cannot bear lateral loads on their own and need to rely on a supporting skeleton.

[0017] 2. The present invention provides a steel truss composite wall for use in prefabricated electrical rooms. This solution combines five sequential processes, such as traditional frame welding, painting, and installation of inner panels, insulation, and outer panels, into a direct installation process for the finished composite wall. This finished product supply reduces the manufacturing steps of prefabricated electrical rooms and effectively solves the problems of rework and low efficiency caused by the inability to parallelize processes.

[0018] 3. The present invention provides a steel truss composite wall for use in prefabricated electrical rooms. By filling the skeleton cavity with high-density rock wool board and using calcium silicate board as the inner sealing board, the wall has structural strength while also taking into account heat preservation, fire resistance and durability. In addition, the rubber sealing strip used on the contact surface between the outer frame and the main structure can effectively ensure the airtightness of the joints and the overall airtightness of the wall. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a plan view of a steel truss composite wall system for use in a prefabricated electrical room, as described in this invention. Figure 2 This is a horizontal cross-sectional view of a steel truss composite wall used in a prefabricated electrical room, as described in this invention. Figure 3 This is a vertical cross-sectional view of a steel truss composite wall used in a prefabricated electrical room, as described in this invention.

[0021] In the diagram: 1-1, multiple main trusses; 1-2, multiple lateral supports; 1-3, outer frame; 2-1, outer cladding plate; 2-2, outer decorative panel; 2-3, central filling; 2-4, inner cladding plate; 2-5, inner decorative panel. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] 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 scope of exemplary embodiments according to the invention. 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.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. 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 listed 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 figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0026] In the description of this invention, 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 generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention 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 invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0027] For ease of description, spatial relative terms such as "above," "on top of," "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 "on top of" 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 (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0028] 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 should not be construed as limiting the scope of protection of this invention.

[0029] Example 1 like Figures 1 to 3 As shown, the present invention provides a steel truss composite wall for use in prefabricated electrical rooms, comprising: a structural frame and a composite wall structure.

[0030] like Figure 1 and Figure 2 As shown, the structural frame consists of multiple parallel and spaced main trusses 1-1, multiple parallel and spaced lateral supports 1-2, and an outer frame 1-3 located around the frame.

[0031] Specifically, such as Figure 3 As shown, the main truss 1-1 is formed by welding rectangular steel tubes as the upper and lower chords and round steel as the diagonal web members. The lateral supports 1-2 also use rectangular steel tubes. The multiple main trusses 1-1 and multiple lateral supports 1-2 intersect each other in the vertical direction, and the lateral supports 1-2 are welded to the inner chords of the main trusses 1-1, thus forming a stable and reliable grid-shaped frame. The outer frame 1-3 is made of bent angle steel, which surrounds and closely fits the outer edges of the grid-shaped frame formed by the main trusses 1-1 and the lateral supports 1-2, and is welded and fixed to the grid-shaped frame to form a complete structural main frame.

[0032] like Figure 2 As shown, the composite wall structure includes, from the outside to the inside, the following components in the thickness direction: outer decorative panel 2-2, outer sealing panel 2-1, middle filling 2-3, inner sealing panel 2-4, and inner decorative panel 2-5. The outer cladding panel 2-1 is made of steel plate, and its edges are continuously welded to the outer chord of the main truss 1-1 and the outer surface of the outer frame 1-3 to form an integral, closed base panel. After the structural frame and the outer cladding panel 2-1 are welded together, an anti-corrosion primer is sprayed on the entire structure to improve the overall durability of the wall.

[0033] The central filling 2-3 uses high-density rock wool boards to fill the cavity formed by the main truss 1-1 and the lateral support 1-2. When the thickness of the high-density rock wool board used is less than the height of the main truss 1-1, the rock wool board is fixed to the inner side of the outer sealing plate 2-1 or to the chord of the main truss 1-1 by multiple welded insulation nails.

[0034] The inner sealing panel 2-4 uses calcium silicate board as the fireproof material. This inner sealing panel 2-4 is detachably fixed to the inner chord of the main truss 1-1 and the inner surface of the lateral support 1-2 via multiple fasteners (such as self-tapping screws or bolts). Different thicknesses of calcium silicate board can be selected according to the different fire resistance time requirements of the wall.

[0035] The interior decorative panel 2-5 is made of finished profiled steel sheet, color-coated sheet, or aluminum composite panel, etc. The interior decorative panel 2-5 is fixedly connected to the inner surface of the inner sealing panel 2-4 by multiple fasteners.

[0036] The exterior decorative panel 2-2 also uses high-durability finished profiled steel sheets, color-coated sheets, or aluminum composite panels. The exterior decorative panel 2-2 is fixedly connected to the outer surface of the exterior sealing panel 2-1 by multiple fasteners or matching special fasteners.

[0037] Example 2 Based on Embodiment 1 above, this embodiment further defines the installation method of the composite wall and the prefabricated electrical room main structure.

[0038] like Figure 1 As shown, the outer frame 1-3 is equipped with multiple flange-type mounting interfaces. During installation, these flange-type mounting interfaces are securely connected to the main structure of the electrical room, including the columns and roof beams, using high-strength bolts. To ensure the airtightness of the wall, rubber sealing tape is affixed between the contact surfaces of the outer frame 1-3 and the main structure. This rubber sealing tape is compressed under the preload of the bolts, effectively sealing the joints and preventing gas or moisture penetration.

[0039] In addition, to ensure a reliable connection between the bottom of the entire wall module and the electrical room base, the bottom frame of the composite wall is tightly fitted with the stop structure pre-set on the top surface of the base beam, and the contact surface is also covered with rubber sealing tape.

[0040] Example 3 This embodiment, based on the above embodiment 1 or 2, further specifies the waterproof and dustproof treatment at the wall joints.

[0041] Edge-sealing panels are installed at the joints between the top of the wall and the roof beams, as well as at the joints between the sides of the wall and the main structural columns. Specifically, the top edge-sealing panel covers and prevents overflow water and moisture from the roof from entering the gaps between the outer sealing panel 2-1 and the outer decorative panel 2-2; the side edge-sealing panels cover and prevent dust and moisture from entering the bolted connection joint areas, ensuring the airtightness of the wall modules and the entire electrical room structure.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel truss composite wall for use in prefabricated electrical rooms, characterized in that, include: Structural framework and composite wall structure; The structural frame consists of multiple main trusses (1-1), multiple lateral supports (1-2), and an outer frame (1-3); the multiple main trusses (1-1) and the multiple lateral supports (1-2) form a grid-shaped frame, and the outer frame (1-3) surrounds and is welded to the outside of the grid-shaped frame. The composite wall structure comprises, from the outside to the inside, an outer decorative panel (2-2), an outer sealing panel (2-1), a central filling (2-3), an inner sealing panel (2-4), and an inner decorative panel (2-5); the outer sealing panel (2-1) is welded to the main truss (1-1) and the outer frame (1-3), and the inner sealing panel (2-4) is connected and fixed to the main truss (1-1) and the lateral support (1-2).

2. The steel truss composite wall for a prefabricated electrical room according to claim 1, characterized in that, The main truss (1-1) is formed by welding rectangular steel tubes as chords and round steel as diagonal web members.

3. The steel truss composite wall for a prefabricated electrical room according to claim 1, characterized in that, The lateral support (1-2) is a rectangular steel pipe, and the lateral support (1-2) is welded to the inner chord of the main truss (1-1) in the vertical direction.

4. A steel truss composite wall for a prefabricated electrical room according to claim 1, characterized in that, The outer frame (1-3) is made of bent angle steel.

5. A steel truss composite wall for a prefabricated electrical room according to claim 1, characterized in that, The outer sealing plate (2-1) is welded to the outer chord of the main truss (1-1) and the outer frame (1-3).

6. A steel truss composite wall for a prefabricated electrical room according to claim 1, characterized in that, The central filling (2-3) is a high-density rock wool board. When its thickness is less than the height of the main truss (1-1), it is fixed by welded insulation nails.

7. A steel truss composite wall for a prefabricated electrical room according to claim 1, characterized in that, The inner sealing plate (2-4) is a fireproof calcium silicate board. The inner sealing plate (2-4) is connected to the inner chord and lateral support (1-2) of the main truss (1-1) by fasteners.

8. A steel truss composite wall for a prefabricated electrical room according to claim 1, characterized in that, The outer frame (1-3) is provided with a flange-type installation interface for connecting to the main structure by bolts, and the contact surface between the outer frame (1-3) and the main structure is provided with a rubber sealing strip.

9. A steel truss composite wall for a prefabricated electrical room according to claim 1, characterized in that, The inner decorative panel (2-5) is a finished profiled steel sheet, color-coated sheet or aluminum buckle panel, etc., and is fixed to the inner sealing panel (2-4) by fasteners.

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