Alc wall connecting joint of fabricated steel structure building

Abstract

The application relates to the technical field of ALC wall construction, in particular to an ALC wall connecting joint of a fabricated steel structure building, which comprises first and second connecting angle steels, the first connecting angle steel is welded with the upper flange of a lower steel beam, and the second connecting angle steel is welded with the lower flange of an upper steel beam; a hook bolt is arranged on the vertical part of each of the first and second connecting angle steels; a reserved connecting hole is arranged on an ALC wall, the cross rod of the hook bolt penetrates through the reserved connecting hole and is connected with a nut for locking and fixing, the outer side wall of the ALC wall abuts against the vertical part of the first and second connecting angle steels, and the ALC wall is fixed by adhesion between the ALC wall and the first and second connecting angle steels, the upper steel beam and the lower steel beam; the application provides stable bottom support by widening the upper flange of the steel beam, meanwhile, the adapter flat steel is arranged on the lower flange to fix the ALC wall plate top with the second connecting angle steel, and the ALC wall plate is reliably connected in the up-down direction in the area without floor support.

Description

Technical Field

[0001] This invention relates to the field of ALC wall construction technology, specifically to an ALC wall connection node for prefabricated steel structure buildings. Background Technology

[0002] In prefabricated steel structure buildings, ALC (autoclaved lightweight concrete) wall panels are widely used as enclosure walls due to their advantages such as being lightweight, high-strength, and having good fire resistance. However, the traditional installation method of ALC wall panels has many limitations, especially in areas without floor slab support (such as stairwell exterior walls, equipment platforms, etc.), where existing technologies cannot provide stable and reliable connection solutions.

[0003] Currently, common ALC wall panel installation methods mainly rely on the dual support of steel beams and concrete floor slabs. For example, Chinese patent CN118029698A proposes an ALC wall panel installation node, but its technical solution is only applicable when the lower part of the wall is supported by a floor slab. For areas without floor slabs, such as cantilevered sections or stairwell exterior walls, this solution cannot provide effective fixation, resulting in the need to temporarily erect support frames during construction, which is not only inefficient but also poses safety hazards. In addition, traditional methods usually require widening the steel beams to provide sufficient installation space, which not only increases steel consumption and construction costs but also increases the structural self-weight, affecting the building's economy and ease of construction.

[0004] Therefore, there is an urgent need for an ALC wall connection node for prefabricated steel structure buildings that can solve the installation problem of ALC wall panels in areas without floor slabs. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an ALC wall connection node for prefabricated steel structure buildings that can solve the installation problem of ALC wall panels in areas without floor slabs.

[0006] The technical solution adopted by this invention to solve its technical problem is: An ALC wall connection node for a prefabricated steel structure building includes an upper steel beam and a lower steel beam. The ALC wall is positioned between the upper and lower steel beams. It also includes a first connecting angle steel and a second connecting angle steel. The horizontal part of the first connecting angle steel is welded to the upper flange of the lower steel beam, and the horizontal part of the second connecting angle steel is welded to the lower flange of the upper steel beam. Hook bolts are provided on the vertical parts of both the first and second connecting angle steels. The vertical bars of the hook bolts are welded to the outer surfaces of the vertical parts of the first and second connecting angle steels. Pre-drilled connection holes are provided on the ALC wall. The horizontal bars of the hook bolts pass through these holes and are secured with nuts. The outer wall of the ALC wall abuts against the inner surfaces of the vertical parts of the first and second connecting angle steels. The ALC wall is bonded to the first and second connecting angle steels, the upper steel beam, and the lower steel beam using adhesive.

[0007] As a preferred embodiment, a further technical solution of the present invention is: Preferably, the relationship between the upper flange width W1 and the lower flange width W2 of the upper and lower steel beams is 1.2W2≤W1≤1.8W2.

[0008] Preferably, the bottom surface of the horizontal part of the first connecting angle steel is welded and fixed to the top surface of the upper flange of the lower steel beam, and a transition flat steel is welded to the end of the lower flange of the upper steel beam. The outer end of the transition flat steel is welded and fixed to the end of the horizontal part of the second connecting angle steel.

[0009] Preferably, the webs of both the upper and lower steel beams are provided with several reinforcing ribs at intervals, and the reinforcing ribs connect the webs, the upper flange, and the lower flange.

[0010] Preferably, the transition flat steel is arranged at intervals with a spacing of less than or equal to 600 mm.

[0011] Preferably, an oblique stiffening rib is provided between the transition flat steel and the upper steel beam, and the two ends of the oblique stiffening rib are welded to the web of the transition flat steel and the upper steel beam, respectively.

[0012] Preferably, a washer is provided between the nut and the ALC wall.

[0013] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art: This application provides stable bottom support by widening the upper flange of the steel beam, while using transition flat steel and second connecting angle steel on the lower flange to fix the top of the ALC wall panel. This achieves reliable bidirectional connection of the ALC wall panel in areas without floor slab support (such as stairwell exterior walls, cantilevered sections, etc.), filling a gap in existing technology. Furthermore, this structure uses standardized connecting components, requiring only simple welding and bolt fixing during on-site installation, eliminating the need for complex pre-embedded work, significantly improving construction efficiency, and is particularly suitable for construction in narrow working areas. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the ALC wall connection node of the prefabricated steel structure building in an embodiment of the present invention; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 yes Figure 1 Enlarged structural diagram at point B; Figure 4 This is a schematic diagram of the connection structure of the oblique stiffening ribs in an embodiment of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1. Upper steel beam; 101. Upper flange of the upper steel beam; 102. Lower flange of the upper steel beam; 103. Web of the upper steel beam; 104. Stiffener; 2. Lower steel beam; 3. ALC wall; 4. Second connecting angle steel; 5. First connecting angle steel; 6. Hook bolt; 7. Nut; 8. Adhesive; 9. Transition flat steel; 10. Diagonal stiffening rib. Detailed Implementation

[0016] The present invention will be further illustrated below with reference to specific embodiments. The purpose of this illustration is solely to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0017] like Figures 1 to 3 As shown in the figure, this embodiment provides an ALC wall connection node for a prefabricated steel structure building, including an upper steel beam 1 and a lower steel beam 2, with an ALC wall 3 disposed between the upper steel beam 1 and the lower steel beam 2. It also includes a first connecting angle steel 5 and a second connecting angle steel 4. The horizontal part of the first connecting angle steel 5 is welded and fixed to the upper flange of the lower steel beam, and the horizontal part of the second connecting angle steel 4 is welded and fixed to the lower flange 102 of the upper steel beam. Hook bolts 6 are provided on the vertical parts of both the first connecting angle steel 5 and the second connecting angle steel 4. The vertical rod of the hook bolt 6 is welded and fixed to the outer side of the vertical part of the first connecting angle steel 5 and the second connecting angle steel 4. A pre-drilled connection hole is provided on the ALC wall 3. The horizontal rod of the hook bolt 6 passes through the pre-drilled connection hole of the ALC wall 3 and is locked and fixed by the nut 7. The outer wall of the ALC wall 3 abuts against the inner side of the vertical part of the first connecting angle steel 5 and the second connecting angle steel 4. The ALC wall 3 is bonded and fixed to the first connecting angle steel 5, the second connecting angle steel 4, the upper steel beam 1, and the lower steel beam 2 using adhesive 8. A washer is provided between the nut 7 and the ALC wall 3. Among them, the first connecting angle steel 5 and the second connecting angle steel 4 are both L63*6 galvanized angle steel, and the length is determined according to the height of the ALC wall panel; the hook bolt 6 is an M12 hook bolt, the welding position of the hook bolt 6 is greater than or equal to 50mm from the end of the first connecting angle steel 5 and the second connecting angle steel 4, and the welding length is greater than or equal to 30mm; the adhesive 8 can be a modified epoxy resin structural adhesive or a polyurethane-epoxy hybrid adhesive.

[0018] In this embodiment, both the upper flange 101 of the upper steel beam and the upper flange of the lower steel beam are widened. The relationship between the width W1 of the upper flange and the width W2 of the lower flange is 1.2W2≤W1≤1.8W2. For example, when the width of the lower flange 102 of the upper steel beam is 200mm, the upper flange 101 of the upper steel beam is widened to 240-360mm.

[0019] The bottom surface of the horizontal part of the first connecting angle steel 5 is welded and fixed to the top surface of the upper flange of the lower steel beam. The lower flange 102 of the upper steel beam is welded to the end of the transition flat steel 9, and the outer end of the transition flat steel 9 is welded and fixed to the end of the horizontal part of the second connecting angle steel 4.

[0020] Both the web 103 of the upper steel beam and the web of the lower steel beam are provided with several reinforcing ribs 104 at intervals, such as... Figure 4 The reinforcing ribs 104 on the upper steel beam 1 are connected to the web 103, the upper flange 101 and the lower flange 102 of the upper steel beam. The reinforcing ribs 104 on the lower steel beam 2 are similarly provided.

[0021] To ensure uniform load distribution and balanced overall structural stress, multiple transition flat steel bars are arranged at intervals of 9, with a spacing of less than or equal to 600mm.

[0022] like Figure 4 An oblique stiffening rib 10 is provided between the transition flat steel 9 and the upper steel beam 1. The two ends of the oblique stiffening rib 10 are welded to the web plate 103 of the transition flat steel 9 and the upper steel beam, respectively.

[0023] Through standardized design, factory prefabrication, and modular installation, the installation of ALC wall panels is achieved quickly, accurately, and stably. In particular, the synergistic effect of the diagonal stiffening rib 10 and the transition flat steel 9 effectively solves the problem of horizontal load transfer in cantilevered sections. Furthermore, compared to widening the entire steel beam, only the upper flange of the steel beam is widened locally, reducing costs and structural weight. This wall connection node is not only suitable for conventional ALC wall panel installation but can also be extended to curtain walls, decorative cladding, and other enclosure systems, making it of significant value for promoting the standardized design of prefabricated steel structure buildings.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. An ALC wall connection node for a prefabricated steel structure building, comprising an upper steel beam and a lower steel beam, wherein the ALC wall is disposed between the upper steel beam and the lower steel beam, characterized in that: It also includes a first connecting angle steel and a second connecting angle steel. The horizontal part of the first connecting angle steel is welded and fixed to the upper flange of the lower steel beam, and the horizontal part of the second connecting angle steel is welded and fixed to the lower flange of the upper steel beam. Hook bolts are provided on the vertical parts of the first connecting angle steel and the second connecting angle steel. The vertical bar of the hook bolt is welded and fixed to the outer side of the vertical part of the first connecting angle steel and the second connecting angle steel. The ALC wall is provided with a reserved connection hole. The horizontal bar of the hook bolt passes through the reserved connection hole of the ALC wall and is locked and fixed with a nut. The outer wall of the ALC wall abuts against the inner side of the vertical part of the first connecting angle steel and the second connecting angle steel. The ALC wall is bonded and fixed to the first connecting angle steel, the second connecting angle steel, the upper steel beam, and the lower steel beam with adhesive. The relationship between the upper flange width W1 and the lower flange width W2 of the upper and lower steel beams is 1.2W2≤W1≤1.8W2; The bottom surface of the horizontal part of the first connecting angle steel is welded and fixed to the top surface of the upper flange of the lower steel beam. A transition flat steel is welded to the end of the lower flange of the upper steel beam, and the outer end of the transition flat steel is welded and fixed to the end of the horizontal part of the second connecting angle steel. The transition flat steel bars are arranged at intervals, with a spacing of less than or equal to 600 mm; An oblique stiffening rib is provided between the transition flat steel and the upper steel beam, and the two ends of the oblique stiffening rib are welded to the web of the transition flat steel and the upper steel beam, respectively.

2. The ALC wall connection node of the prefabricated steel structure building according to claim 1, characterized in that: Both the upper and lower steel beams have several reinforcing ribs spaced apart on their webs, which connect the web, the upper flange, and the lower flange.

3. The ALC wall connection node of the prefabricated steel structure building according to claim 1, characterized in that: A washer is placed between the nut and the ALC wall.

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