A stress conversion fixing device for mounting a steel net rack on an outwardly inclined curtain wall keel

Abstract

The utility model relates to the technical field of steel structure roof, and disclose a stress conversion fixing device of outer inclined curtain wall keel hangs steel net rack, including steel keel, still include: install the connecting assembly on steel keon, be provided with mounting assembly on the connecting assembly, install the round pipe on the mounting assembly, the connecting lug is welded on the round pipe, the lower chord ball is welded on the connecting lug, the connecting assembly includes the fixed sleeve of installing on steel keon, the stainless steel bolt is installed in the fixed sleeve, the stainless steel bolt penetrates fixed sleeve and steel keon, the U-shaped connection swing arm is fixedly installed on the fixed sleeve, the device adopts high -strength connecting bolt, the connecting node structure such as optimization, ensure in the long -term use process, even if be subjected to wind load, earthquake force and so on external force, the connection of keel and steel net rack also can not easily loosen or damage, thereby improved the security and reliability of whole curtain wall structure.

Description

Technical Field

[0001] This utility model relates to the field of steel structure roofing technology, specifically a force conversion and fixing device for an outward-tilting curtain wall keel-mounted steel grid frame. Background Technology

[0002] In modern architectural design, large-span buildings and buildings with complex facades are increasingly common in pursuit of unique appearances and spatial effects. Steel space frame structures, due to their advantages such as spatial load-bearing capacity, light weight, high rigidity, and aesthetic appeal, are widely used in various building projects, including large-span industrial plants, stadiums, and exhibition halls. Meanwhile, outward-tilting curtain walls, as an enclosure structure capable of creating unique architectural appearances, are also gaining increasing favor among architects.

[0003] However, when the joists of an outward-tilting curtain wall need to be mounted on a steel space frame, numerous technical challenges arise. Firstly, the steel space frame deforms under load, especially under large spans or complex stress conditions, where the deformation becomes more complex. If the joists of the outward-tilting curtain wall are directly and rigidly connected to the steel space frame, the space frame will be subjected to negative bending moments, potentially causing excessive stress on the frame members. This could lead to bending deformation, breakage, weld detachment, and other safety hazards, affecting the safety and stability of both the curtain wall and the space frame. Secondly, the weight of the outward-tilting curtain wall itself, as well as external forces such as wind loads and seismic forces, need to be transferred to the steel space frame structure in a reasonable manner, ensuring reliable operation of the connection between the curtain wall joists and the steel space frame under different stress conditions.

[0004] In addition, the ease of installation and precision control also need to be considered during construction. Due to the large area of ​​the curtain wall and the large size and weight of the keel, how to accurately hang the outward-tilting curtain wall keel onto the steel grid frame and achieve reasonable force transfer while ensuring construction efficiency and quality is also an urgent problem to be solved. Traditional connection and fixing methods often cannot meet these requirements. Utility Model Content

[0005] The purpose of this utility model is to provide a force conversion and fixing device for the steel grid frame of the outward-tilting curtain wall keel, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a force conversion and fixing device for an outward-tilting curtain wall keel mounting steel space frame, comprising a steel keel, and further comprising: A connecting assembly installed on a steel keel, the connecting assembly having an installation component, the installation component having a round tube installed on it, a connecting lug plate welded to the round tube, and a lower chord ball welded to the connecting lug plate.

[0007] Preferably, the connecting assembly includes a fixing sleeve mounted on a steel keel, a stainless steel bolt installed inside the fixing sleeve, the stainless steel bolt penetrating the fixing sleeve and the steel keel, and a U-shaped connecting swing arm fixedly mounted on the fixing sleeve.

[0008] Preferably, the mounting assembly includes a steel plate swing arm mounted on a U-shaped connecting swing arm, the top of the steel plate swing arm having a groove, and a U-shaped connecting plate being fixedly mounted on the steel plate swing arm by connecting bolts.

[0009] Preferably, a mounting bolt is installed on the U-shaped connecting swing arm, and a washer is installed on the outside of the mounting bolt.

[0010] Preferably, a steel plate reinforcing rib is welded between the fixed sleeve and the U-shaped connecting swing arm.

[0011] Preferably, the steel plate swing arm has a through hole for mounting it on the connecting assembly.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Through a rational structural design, this device enables a more stable connection between the curtain wall's refined steel keel and the steel space frame. The use of high-strength connecting bolts and optimized connection node structures ensures that, even under external forces such as wind loads and seismic forces during long-term use, the connection between the keel and the steel space frame will not easily loosen or break, thereby improving the safety and reliability of the entire curtain wall structure.

[0013] 2. Compared to traditional keel installation methods, this device is designed with greater emphasis on ease of construction. Its connecting components employ a standardized and modular design, facilitating rapid assembly by workers on-site, reducing complex on-site processing procedures, shortening construction time, and lowering labor intensity. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main structure of the force conversion and fixing device for the outward tilting curtain wall keel hanging steel grid frame provided by this utility model; Figure 2 A schematic diagram of the connection component structure provided by this utility model; Figure 3 A schematic diagram of the U-shaped connecting swing arm structure provided by this utility model; Figure 4 A schematic diagram of the installation component structure provided by this utility model.

[0015] In the diagram: 1. Steel keel; 2. Connecting assembly; 21. Fixing sleeve; 22. Stainless steel bolt; 23. U-shaped connecting swing arm; 3. Mounting assembly; 31. Steel plate swing arm; 32. Groove; 33. U-shaped connecting plate; 4. Round tube; 34. Connecting bolt; 5. Connecting ear plate; 6. Lower chord ball; 7. Through hole; 8. Mounting bolt; 9. Washer; 10. Steel plate reinforcing rib. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 As shown, a force conversion and fixing device for an outward-tilting curtain wall keel mounting steel grid frame includes a steel keel 1 and a connecting component 2 installed on the steel keel 1. The connecting component 2 is provided with an installation component 3. A round tube 4 is installed on the installation component 3. A connecting ear plate 5 is welded on the round tube 4. A lower chord ball 6 is welded on the connecting ear plate 5.

[0018] It should be noted that this device avoids the direct application of the curtain wall keel and its external curtain wall load onto the lower chord ball joint 6. This prevents the lower chord ball joint 6 from simultaneously generating outward horizontal tension and downward gravity, resulting in a negative bending moment. The bending moment on the space frame would cause structural damage, severely impacting structural safety. By using welding and high-strength bolts to form a sliding hinge for force transfer, the connection stability between the steel roof truss and the curtain wall keel can be improved, enhancing the building's seismic performance.

[0019] The connecting assembly 2 includes a fixing sleeve 21 installed on the steel keel 1. A stainless steel bolt 22 is installed inside the fixing sleeve 21, and the stainless steel bolt 22 passes through the fixing sleeve 21 and the steel keel 1. A U-shaped connecting arm 23 is fixedly installed on the fixing sleeve 21. A steel plate reinforcing rib 10 is welded between the fixing sleeve 21 and the U-shaped connecting arm 23. An opening adapted to the stainless steel bolt 22 is opened on the steel keel 1. The fixing sleeve 21 is snapped onto the steel keel 1, and then the stainless steel bolt 22 passes through the opening on the fixing sleeve 21 and the steel keel 1, thereby fixing the fixing sleeve 21 to the steel keel 1. The U-shaped connecting arm 23 is welded to the fixing sleeve 21, thereby fixing the U-shaped connecting arm 23 to the steel keel 1. The steel plate reinforcing rib 10 can strengthen the connection strength between the fixing sleeve 21 and the U-shaped connecting arm 23, thereby improving the strength of the entire connecting assembly 2.

[0020] Mounting assembly 3 includes a steel plate swing arm 31 mounted on a U-shaped connecting swing arm 23. A groove 32 is provided on the top of the steel plate swing arm 31, and a U-shaped connecting plate 33 is fixedly mounted on the steel plate swing arm 31 by connecting bolts 34. Mounting bolts 8 are mounted on the U-shaped connecting swing arm 23, and washers 9 are mounted on the outer side of the mounting bolts 8. A through hole 7 is provided on the steel plate swing arm 31 for mounting on the connecting assembly 2. The steel plate swing arm 31 is installed inside the U-shaped connecting swing arm 23, and then the mounting bolts 8 are passed through the U-shaped connecting arm 23. Connect the swing arm 23 and the through hole 7 to fix the steel plate swing arm 31 on the U-shaped connecting swing arm 23. The outer side of the mounting bolt 8 is also fitted with a washer 9, which can improve the fixing effect of the mounting bolt 8. After the steel plate swing arm 31 is installed, place the round tube 4 inside the groove 32 at the top of the steel plate swing arm 31, and then snap the U-shaped connecting swing arm 23 onto the upper part of the round tube 4. Then use the connecting bolt 34 to fix the U-shaped connecting swing arm 23 on the steel plate swing arm 31, thereby fixing the round tube 4 on the steel plate swing arm 31.

[0021] Working principle: This device avoids the direct action of the curtain wall keel and its external curtain wall load on the lower chord ball node 6, which would cause the lower chord ball node 6 to generate a negative bending moment due to the simultaneous outward horizontal tension and downward gravity. The bending moment on the space frame would cause structural damage and seriously affect the safety of the structure. Therefore, the force transfer is achieved by using welding and high-strength bolts to form a sliding hinge, which can improve the connection stability between the steel structure roof truss and the curtain wall keel and improve the seismic performance of the building.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 limitations, 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.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A force conversion and fixing device for an outward-tilting curtain wall keel-mounted steel grid frame, comprising a steel keel (1), characterized in that, Also includes: A connecting component (2) is installed on a steel keel (1). An installation component (3) is provided on the connecting component (2). A round tube (4) is installed on the installation component (3). A connecting ear plate (5) is welded on the round tube (4). A lower chord ball (6) is welded on the connecting ear plate (5).

2. The force conversion and fixing device for the steel grid frame of an outward-tilting curtain wall keel as described in claim 1, characterized in that: The connecting assembly (2) includes a fixing sleeve (21) installed on the steel keel (1), a stainless steel bolt (22) is installed inside the fixing sleeve (21), the stainless steel bolt (22) passes through the fixing sleeve (21) and the steel keel (1), and a U-shaped connecting swing arm (23) is fixedly installed on the fixing sleeve (21).

3. The force conversion and fixing device for the steel grid frame of an outward-tilting curtain wall keel as described in claim 2, characterized in that: The mounting assembly (3) includes a steel plate swing arm (31) mounted on a U-shaped connecting swing arm (23). The top of the steel plate swing arm (31) has a groove (32), and a U-shaped connecting plate (33) is fixedly mounted on the steel plate swing arm (31) by connecting bolts (34).

4. The force conversion and fixing device for the steel grid frame of an outward-tilting curtain wall keel as described in claim 2, characterized in that: The U-shaped connecting swing arm (23) is equipped with mounting bolts (8), and a washer (9) is installed on the outside of the mounting bolts (8).

5. The force conversion and fixing device for the steel grid frame of an outward-tilting curtain wall keel as described in claim 2, characterized in that: A steel plate reinforcing rib (10) is welded between the fixed sleeve (21) and the U-shaped connecting swing arm (23).

6. The force conversion and fixing device for the steel grid frame of an outward-tilting curtain wall keel as described in claim 3, characterized in that: The steel plate swing arm (31) has a through hole (7) for mounting it on the connecting assembly (2).

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