ALC wall body connecting joint of fabricated steel structure building

Abstract

The invention relates to the technical field of ALC wall construction, in particular to an ALC wall connecting joint of an assembly type steel structure building, which comprises a first connecting angle steel and a second connecting angle steel, the first connecting angle steel is welded with an upper flange of a lower steel beam, and the second connecting angle steel is welded with a lower flange of an upper steel beam; hook bolts are arranged on the vertical parts of the first connecting angle steel and the second connecting angle steel; a reserved connecting hole is formed in the ALC wall body, a cross rod of the hook bolt penetrates through the reserved connecting hole and is connected with a nut to be locked and fixed, the outer side wall of the ALC wall body abuts against the vertical portion of the first connecting angle steel and the vertical portion of the second connecting angle steel, and the ALC wall body is fixedly bonded with the first connecting angle steel, the second connecting angle steel, the upper steel beam and the lower steel beam through adhesives. The stable bottom support is provided by widening the upper flange of the steel beam, and meanwhile, the adapter flat steel and the second connecting angle steel are arranged on the lower flange to fix the top of the ALC wallboard, so that the vertical bidirectional reliable connection of the ALC wallboard in a floor-slab-free supporting area is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of ALC wall construction, in particular to an ALC wall connection node of an assembled steel structure building. Background Art

[0002] In prefabricated steel buildings, ALC (autoclaved lightweight concrete) wall panels are widely used as enclosure walls due to their lightweight, high strength, and excellent fire resistance. However, traditional ALC wall panel installation methods have many limitations, especially in areas without floor support (such as stairwell exterior walls and equipment platforms), where existing technologies struggle to provide a stable and reliable connection solution.

[0003] Currently, common ALC wall panel installation methods rely primarily on dual support from steel beams and concrete floor slabs. For example, Chinese patent publication number CN118029698A proposes an ALC wall panel installation node, but its technical solution is only applicable when the wall is supported by a floor slab below. In areas without a floor slab, such as overhangs or stairwell exterior walls, this solution cannot provide effective fixation, resulting in the need for temporary support frames during construction. This is not only inefficient but also poses a safety hazard. Furthermore, traditional methods often require widening the entire steel beam to provide sufficient installation space, which not only increases steel usage and construction costs, but also increases the deadweight of the structure, affecting the building's economical and construction convenience.

[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] In view of the shortcomings of the prior art, the purpose of the present 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 the present invention to solve its technical problem is: An ALC wall connection node of an assembled steel structure building includes an upper steel beam and a lower steel beam, the ALC wall is arranged between the upper steel beam and the lower steel beam, and also includes a first connecting angle steel and a second connecting angle steel, the horizontal portion of the first connecting angle steel and the upper flange of the lower steel beam are welded and fixed, and the horizontal portion of the second connecting angle steel and the lower flange of the upper steel beam are welded and fixed; the vertical portions of the first connecting angle steel and the second connecting angle steel are both provided with hook head bolts, and the vertical rods of the hook head bolts are welded and fixed to the outer side surfaces of the vertical portions of the first connecting angle steel and the second connecting angle steel; reserved connection holes are provided on the ALC wall, the horizontal rods of the hook head bolts pass through the reserved connection holes of the ALC wall and are fastened and fixed with nuts, the outer side walls of the ALC wall abut against the inner sides of the vertical portions of the first connecting angle steel and the second connecting angle steel, and 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 using adhesive.

[0007] Preferably, 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 steel beam and the lower steel beam is 1.2W2≤W1≤1.8W2.

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

[0009] Preferably, a plurality of reinforcing ribs are provided at intervals on the webs of the upper steel beam and the lower steel beam, and the reinforcing ribs connect the webs, the upper flange and the lower flange.

[0010] Preferably, the transfer flat steels are arranged at intervals with a spacing 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 both ends of the oblique stiffening rib are respectively welded to the web of the transition flat steel and the upper steel beam.

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

[0013] Compared with the prior art, the present invention adopting the above technical solution has the following outstanding features: This application widens the upper flange of the steel beam to provide stable bottom support, while also installing a transition flat steel and a second connecting angle steel on the lower flange to secure the top of the ALC wall panel. This achieves reliable, bidirectional connection of the ALC wall panel in areas without floor support (such as stairwell exterior walls and cantilevered areas), filling a gap in the existing technology. Furthermore, this structure utilizes standardized connecting components, requiring only simple welding and bolting for on-site installation, eliminating the need for complex pre-embedded work. This significantly improves construction efficiency and is particularly suitable for construction on narrow work surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of the ALC wall connection node of the prefabricated steel structure building in an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle; Figure 3 yes Figure 1 Schematic diagram of the enlarged structure at B in the middle; Figure 4 Schematic diagram of the connection structure of the oblique stiffening ribs in an embodiment of the present invention.

[0015] Explanation of the accompanying symbols: 1. Upper steel beam; 101. Upper flange of upper steel beam; 102. Lower flange of upper steel beam; 103. Web of upper steel beam; 104. Reinforcement rib; 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. Transfer flat steel; 10. Oblique stiffening rib. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with specific embodiments. The purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0017] like Figures 1 to 3 As shown, this embodiment provides an ALC wall connection node of an assembled steel structure building, including an upper steel beam 1 and a lower steel beam 2, an ALC wall 3 arranged between the upper steel beam 1 and the lower steel beam 2, and also includes a first connecting angle steel 5 and a second connecting angle steel 4. The horizontal portion of the first connecting angle steel 5 is welded to the upper flange of the lower steel beam, and the horizontal portion of the second connecting angle steel 4 is welded to the lower flange 102 of the upper steel beam; the vertical portions of the first connecting angle steel 5 and the second connecting angle steel 4 are both provided with hook bolts 6. The vertical rod of the hook bolt 6 is welded to the outer side of the vertical portion of the first and second connecting angle steels 5 and 4. The ALC wall 3 is provided with a reserved connection hole. The horizontal rod of the hook bolt 6 passes through the reserved connection hole of the ALC wall 3 and is connected with a nut 7 to lock and secure it. The outer wall of the ALC wall 3 abuts the inner side of the vertical portion of the first and second connecting angle steels 5 and 4. The ALC wall 3 is bonded to the first and second connecting angle steels 5 and 4, the upper steel beam 1, and the lower steel beam 2 using adhesive 8. A gasket 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 made of L63*6 galvanized angle steel, and the length is determined according to the height of the ALC wall panel; the hook head bolt 6 is an M12 hook head bolt, and the welding position of the hook head bolt 6 is greater than or equal to 50 mm from the ends of the first connecting angle steel 5 and the second connecting angle steel 4, and the welding length is greater than or equal to 30 mm; the adhesive 8 can be a modified epoxy resin structural adhesive or a polyurethane-epoxy hybrid adhesive.

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

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

[0020] The webs 103 of the upper steel beam and the webs of the lower steel beam are provided with a plurality of reinforcing ribs 104 at intervals, such as Figure 4 The reinforcing ribs 104 on the upper steel beam 1 connect the web 103 of the upper steel beam, the upper flange 101 of the upper steel beam and the lower flange 102 of the upper steel beam, and the reinforcing ribs 104 on the lower steel beam 2 are set similarly.

[0021] In order to ensure uniform load transfer and balanced stress on the entire structure, multiple transfer flat steels 9 are arranged at intervals with a spacing of less than or equal to 600 mm.

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

[0023] Through standardized design, factory prefabrication, and modular installation, ALC wall panels are installed quickly, accurately, and reliably. In particular, the synergistic effect of the diagonal stiffeners 10 and the transition flat steel 9 effectively resolves the issue of horizontal load transfer in cantilevered areas. Furthermore, compared to widening the entire steel beam, only the upper flange is widened locally, reducing costs and structural deadweight. This wall connection node is not only suitable for conventional ALC wall panel installation but can also be expanded to other enclosure systems such as curtain walls and decorative panels, thus significantly promoting the standardized design of prefabricated steel structures.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made by using the contents of the present invention description and the drawings are included in 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 arranged 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; the vertical parts of the first connecting angle steel and the second connecting angle steel are both provided with hook head bolts, and the vertical rods of the hook head bolts are welded and fixed to the outer side surfaces of the vertical parts of the first connecting angle steel and the second connecting angle steel; reserved connecting holes are provided on the ALC wall, and the horizontal rods of the hook head bolts pass through the reserved connecting holes of the ALC wall and are fastened and fixed with connecting nuts. The outer side wall of the ALC wall abuts against the inner sides of the vertical parts of the first connecting angle steel and the second connecting angle steel, and 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.

2. The ALC wall connection node of the prefabricated steel structure building according to claim 1 is characterized by: The relationship between the upper flange width W1 and the lower flange width W2 of the upper steel beam and the lower steel beam is 1.2W2≤W1≤1.8W2.

3. The ALC wall connection node of the prefabricated steel structure building according to claim 2, characterized in that: The bottom surface of the horizontal part of the first connecting angle steel is welded 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 to the horizontal end of the second connecting angle steel.

4. The ALC wall connection node of the prefabricated steel structure building according to claim 2, characterized in that: A number of reinforcing ribs are arranged at intervals on the webs of the upper steel beam and the lower steel beam, and the reinforcing ribs connect the webs, the upper flange and the lower flange.

5. The ALC wall connection node of the prefabricated steel structure building according to claim 2, characterized in that: The transfer flat steels are arranged at intervals with a spacing less than or equal to 600mm.

6. The ALC wall connection node of the prefabricated steel structure building according to claim 2, characterized in that: An oblique stiffening rib is provided between the transfer flat steel and the upper steel beam, and two ends of the oblique stiffening rib are respectively welded to the webs of the transfer flat steel and the upper steel beam.

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

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