Semi-fabricated curtain wall keel frame
The semi-prefabricated curtain wall keel frame design solves the problems of slow construction progress and unsightly connections, achieving rapid installation and a highly aesthetic architectural effect, thus meeting both architectural aesthetics and safety requirements.
Patent Information
- Application Number
- CN202423058266.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-11
AI Technical Summary
The existing keel frame construction is slow, has large installation deviations, and has complex and unsightly connection structures, making it difficult to meet the requirements of rapid construction and architectural aesthetics.
The semi-prefabricated curtain wall frame, including columns and beams, is used. It is connected to the beam core with fasteners through a detachable beam sleeve and combined with the sub-frame connection structure to avoid exposed screws. It is fixed to the building structure with angle steel connectors and prefabricated handrails are installed to meet different types of construction needs.
It achieves a keel frame that is fast to construct, easy to install, aesthetically pleasing and sturdy, meets architectural aesthetic requirements, and improves the quality of building facade design and safety performance.
Smart Images

Figure CN223510505U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building curtain wall technology, specifically to a semi-prefabricated curtain wall keel frame. Background Technology
[0002] In buildings such as hotels, office buildings, and industrial plants, a combination of glass curtain walls, metal curtain walls, and stone curtain walls is widely used. Simultaneously, with rapid economic development and accelerating urbanization, rapid construction has become a crucial aspect of building construction. As construction progresses faster, traditional construction methods are clearly insufficient to meet deadlines. Furthermore, for designs incorporating various glass curtain wall styles, existing keel frame construction methods suffer from slow construction progress and significant installation deviations.
[0003] In addition, the existing keel frame has a relatively complex connection structure between the columns and beams in order to improve the connection strength and stability. There are obviously visible screws and other connectors (in the case of non-welded connection), and the connection is not aesthetically pleasing. Summary of the Invention
[0004] The purpose of this utility model is to address the problems existing in the prior art by providing a semi-assembled curtain wall keel frame.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A semi-prefabricated curtain wall keel frame includes a pair of columns, with multiple horizontal beams between the pair of columns; each horizontal beam has a detachable horizontal beam sleeve on its inner periphery at its end, and the horizontal beam sleeve is connected to the column by fasteners; each horizontal beam and column has a sub-frame connection structure on its exterior-facing side, and the sub-frame connection structure is used to connect the curtain wall glass.
[0007] This semi-prefabricated curtain wall keel frame has a simple structure, is easy to manufacture and use, and can pre-produce different types of keel frames according to actual needs, and install them and assemble the curtain wall glass on the construction site. Combining the structural characteristics of each curtain wall, it integrates structural stress with building function, and has the advantages of reasonable structural stress, good safety performance, high factory processing precision, and fast prefabricated overall installation construction progress. It meets the current popular architectural aesthetic requirements such as large glass window panels and narrow frames, and integrates them into the building facade to enhance the quality of building facade design.
[0008] Furthermore, the crossbeam sleeve is fitted onto the inner circumference of the crossbeam and fixed by a number of screws, the screws being located on the side where the sub-frame connecting structure is located; the outer circumference of the crossbeam sleeve is provided with a number of protruding points or protruding strips along the length direction, the protruding points or protruding strips abutting against the inner circumference of the crossbeam.
[0009] Furthermore, the inner circumference of the crossbeam sleeve is provided with a plurality of connecting posts, the connecting posts are arranged parallel to the length direction of the crossbeam, the connecting posts are connected to the fasteners, and the connecting posts are provided with notches in the length direction.
[0010] Furthermore, the inner circumference of the column is provided with a column sleeve.
[0011] Furthermore, each of the columns is provided with angle steel connectors on both sides, the angle steel connectors being located on the upper half of the column near the indoor side; a portion of the angle steel connector is attached to and connected to the column, and the other portion extends into the indoor side of the column.
[0012] Furthermore, a pair of symmetrically arranged angle steel connectors are connected and fixed to the column together by long bolts and washers, and the angle steel connectors are provided with oval holes for the long bolts to pass through.
[0013] Furthermore, multiple handrails are provided between the pair of columns, with the handrails positioned at the lower part of the columns and arranged close to the interior side.
[0014] Furthermore, a pair of columns are connected by a crossbeam near their upper and lower ends, and 2 to 5 crossbeams are provided at equal intervals in the middle. The cross-sectional dimensions of the crossbeams are smaller than the cross-sectional dimensions of the columns.
[0015] Furthermore, the sub-frame connection structure includes a long connecting groove located in the middle of the side of the column or beam, and short connecting grooves located on both sides of the long connecting groove; the beam is also connected to a glass support plate on the side where the sub-frame connection structure is located.
[0016] Furthermore, the curtain wall glass includes operable sash glass located in the central area, and fixed sash glass at the top and bottom.
[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. This semi-prefabricated curtain wall keel frame has a simple structure, is easy to manufacture and use, and can pre-produce different types of keel frames according to actual needs, and install and assemble curtain wall glass on the construction site; combined with the structural characteristics of each curtain wall, it integrates structural stress with building function, and has the advantages of reasonable structural stress, good safety performance, high factory processing precision, and fast prefabricated overall installation construction progress. It meets the current popular architectural aesthetic requirements such as large glass window panels and narrow frames, and integrates them into the building facade, improving the quality of building facade design; 2. The setting of the crossbeam core facilitates the connection between the crossbeam and the column, so that the crossbeam is between a pair of columns, without occupying the installation space outside the columns. This structure makes the entire keel frame structure more compact and easier to install. The system achieves the installation requirements of a narrow frame; moreover, the use of a crossbeam core connection structure avoids exposed screws, resulting in a tighter fit and no obvious connection marks visible from the outside, making it more aesthetically pleasing while ensuring connection strength and load-bearing capacity; 3. The design of the column core enhances the structural strength and stability of the column, and the column core can extend from both ends of the column to facilitate its installation on the building structure, simplifying the installation of the entire keel frame; 4. The angle steel connectors allow the column to be connected to the building structure, facilitating the installation and fixing of the keel frame; 5. The handrail is prefabricated and installed on the column, avoiding later handrail installation work. The handrail can also be connected to the column using a handrail core structure, resulting in a more aesthetically pleasing and robust installation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the elevation structure of a semi-assembled curtain wall keel frame according to the present invention.
[0019] Figure 2 This is a side view of a semi-assembled curtain wall keel frame according to the present invention.
[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of a semi-assembled curtain wall keel frame according to the present invention;
[0021] Figure 4 for Figure 2 Enlarged structural diagram at point A (diagram of beam cross-section);
[0022] Figure 5 for Figure 1 Enlarged structural diagram at point B (diagram of angle steel connector connection structure);
[0023] Figure 6 for Figure 2 Enlarged structural diagram at point C;
[0024] Figure 7 for Figure 3 Enlarged structural diagram at point D;
[0025] In the diagram: 1. Column; 2. Horizontal beam; 3. Horizontal beam core; 4. Raised strip structure; 5. Connecting column; 6. Column core; 7. Angle steel connector; 8. Long bolt; 9. Oval hole; 10. Handrail; 11. Long connecting groove; 12. Short connecting groove; 13. Glass support plate. Detailed Implementation
[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.
[0028] like Figures 1 to 7 As shown, a semi-prefabricated curtain wall keel frame includes a pair of columns 1, and a plurality of horizontal beams 2 are provided between the pair of columns 1; the inner circumference of the ends of the horizontal beams 2 are respectively provided with detachable horizontal beam sleeves 3, and the horizontal beam sleeves 3 are connected to the columns 1 by fasteners; the side of the horizontal beams 2 and the columns 1 facing the outside is respectively provided with a sub-frame connection structure, and the sub-frame connection structure is used to connect the curtain wall glass.
[0029] This semi-prefabricated curtain wall keel frame has a simple structure, is easy to manufacture and use, and can pre-produce different types of keel frames according to actual needs, and install them and assemble the curtain wall glass on the construction site. Combining the structural characteristics of each curtain wall, it integrates structural stress with building function, and has the advantages of reasonable structural stress, good safety performance, high factory processing precision, and fast prefabricated overall installation construction progress. It meets the current popular architectural aesthetic requirements such as large glass window panels and narrow frames, and integrates them into the building facade to enhance the quality of building facade design.
[0030] The cooperation of the column 1 and the beam 2 can form the keel frame for the installation of the curtain wall glass. This frame can be hoisted and installed in sections and zones. The sub-frame connecting structure facing the outside can be used to easily connect and support the glass sub-frame for the installation of the exterior decorative curtain wall glass.
[0031] The crossbeam sleeve 3 facilitates the connection between the crossbeam 2 and the column 1, placing the crossbeam 2 between a pair of columns 1 without occupying installation space outside the columns. This structure makes the entire keel frame more compact and easier to meet the installation requirements of narrow frames. Moreover, the connection structure of the crossbeam sleeve 3 avoids exposed screws, resulting in a tighter fit. There are no obvious connection marks visible from the outside, making it more aesthetically pleasing, and ensuring connection strength and load-bearing capacity.
[0032] Furthermore, the crossbeam sleeve 3 is fitted onto the inner circumference of the crossbeam 2 and fixed by a number of screws, the screws being located on the side where the sub-frame connecting structure is located; the outer circumference of the crossbeam sleeve 3 is provided with a number of protruding structures or protruding strip structures 4 along the length direction, the protruding structures or the protruding strip structures 4 abutting against the inner circumference of the crossbeam 2.
[0033] After the crossbeam sleeve 3 is fitted onto the end of the crossbeam 2, the two can be fixed by connecting them with several screws on the side where the sub-frame connection structure is located. This connection method is both stable and has good concealment. The screws and other connecting parts are not visible from the indoor side, and no screws are visible after the curtain wall glass is installed on the outdoor side, resulting in good aesthetics.
[0034] The four right angles of the crossbeam sleeve core 3 are provided with the convex point structure or convex strip structure 4, which can avoid the appearance of sharp corners on the outer periphery. When connecting the sleeve, it avoids right angle butt joints and large area butt joints between surfaces, reduces the difficulty of sleeve installation, and facilitates connection and installation.
[0035] Furthermore, the inner circumference of the crossbeam sleeve 3 is provided with a plurality of connecting posts 5, the connecting posts 5 are arranged parallel to the length direction of the crossbeam 2, the connecting posts 5 are connected to the fasteners, and the connecting posts 5 are provided with notches in the length direction.
[0036] The connecting post 5 is provided on the inner wall opposite to the crossbeam sleeve 3. The crossbeam sleeve 3 can be easily connected and fixed to the column 1 using fasteners (such as ST4.8 self-tapping screws), that is, the crossbeam 2 is installed between the columns 1. In actual production, the crossbeam sleeve can be pre-connected to the column, then the crossbeam is sleeved on the crossbeam sleeve, the position is adjusted, and then the crossbeam and the crossbeam sleeve are tightened with screws.
[0037] The notch on the connecting post 5 enhances the stability and reliability of the connection. This notch generates stress when the threaded parts are tightened, thereby increasing the tightening force on the connecting post and improving its stability. The notch changes the stress state in front of it, changing the stress on the material from uniaxial tension to biaxial or triaxial tension, which helps to disperse stress, reduce local stress concentration, and thus extend service life. When the threaded parts are tightened, the notch reduces unnecessary deformation and maintains the stability of the connecting post.
[0038] Furthermore, the inner circumference of the column 1 is provided with a column sleeve 6. The column sleeve 6 can improve the structural strength and stability of the column 1, and the column sleeve 6 can extend from both ends of the column to install the column onto the building structure, which facilitates the installation of the entire keel frame.
[0039] The column sleeve 6 can be a single square tube structure or a square tube structure with one large and one small tube. This allows for space to be provided by grooves on both sides of the smaller tube to accommodate screws (the ends of the screws).
[0040] Furthermore, each of the columns 1 is provided with angle steel connectors 7 on both the left and right sides. The angle steel connectors 7 are located on the upper half of the column 1 near the indoor side; a part of the angle steel connector 7 is attached to and connected to the column 1, and the other part extends into the indoor side of the column. The angle steel connectors 7 can be used to connect the column 1 to the building structure, facilitating the installation and fixing of the keel frame.
[0041] Furthermore, a pair of symmetrically arranged angle steel connectors 7 are connected and fixed to the column 1 together with long bolts 8, washers and nuts, etc. The angle steel connectors 7 are provided with oval holes 9 for the long bolts to pass through.
[0042] The pair of angle steel connectors 7 on both sides of the column can be connected by long bolts 8. This connection method can not only connect the pair of angle steel connectors 7 and the column 1 at the same time, but also connect with the column sleeve 6, allowing the column and the column sleeve to share the load. The oval hole 9 allows for fine adjustment of the position of the angle steel connector 7 when connecting the long bolt.
[0043] Furthermore, multiple handrails 10 are provided between a pair of columns 1, with the handrails 10 positioned at the lower part of the columns 1 and arranged close to the indoor side.
[0044] The handrail 10 is installed on the indoor side and is prefabricated onto the column 1, avoiding the need for later handrail installation. Alternatively, the handrail 10 can be connected to the column using a handrail core structure, resulting in a more aesthetically pleasing and robust installation. The handrail is offset from the crossbeam both vertically and horizontally, ensuring no interference between them.
[0045] Furthermore, a pair of columns 1 are connected by crossbeams 2 near their upper and lower ends, and 2 to 5 crossbeams 2 are provided at equal intervals in the middle. The cross-sectional dimensions of the crossbeams 2 are smaller than the cross-sectional dimensions of the columns.
[0046] In this embodiment, three crossbeams 2 are provided in the middle, so that the entire keel frame has four windows. The top and bottom two windows can be used to install fixed curtain wall glass, and the two middle windows can be used to install operable curtain wall glass, that is, windows that can be opened and closed.
[0047] The cross-sectional width of the beam 2 is 1 / 3 to 3 / 5 of the cross-sectional width of the column 1, for example, about half, so that more space can be left near the indoor side.
[0048] Furthermore, the sub-frame connection structure includes a long connecting groove 11 located in the middle of the side of the column 1 or the crossbeam 2, and short connecting grooves 12 located on both sides of the long connecting groove 11; the crossbeam 2 is also connected to a glass support plate 13 on the side where the sub-frame connection structure is located.
[0049] The long connecting groove 11 can be connected with bolts to fix the glass sub-frame, or it can be connected with other profile components. The short connecting grooves 12 on both sides are located at the edges and can be connected with sealing strips or decorative panels, etc. The glass support plate 13 is L-shaped, with one side connected to the sub-frame structure by screws, and the other side extends out to support the curtain wall glass, further improving the stability of the glass installation.
[0050] Furthermore, the curtain wall glass includes operable sash glass located in the central area, and fixed sash glass at the top and bottom, which can be installed after the keel frame is installed.
[0051] 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 semi-prefabricated curtain wall keel frame, characterized in that, It includes a pair of columns, with multiple crossbeams between the pair of columns; each crossbeam has a detachable crossbeam sleeve on its inner circumference at its end, and the crossbeam sleeve is connected to the column by fasteners; each crossbeam and column has a sub-frame connection structure on its exterior-facing side, and the sub-frame connection structure is used to connect the curtain wall glass.
2. The semi-prefabricated curtain wall keel frame according to claim 1, characterized in that, The crossbeam sleeve is fitted onto the inner circumference of the crossbeam and fixed by a number of screws, which are located on the side of the sub-frame connection structure. The outer circumference of the crossbeam sleeve is provided with a number of protruding points or protruding strips along the length direction, and the protruding points or protruding strips abut against the inner circumference of the crossbeam.
3. The semi-prefabricated curtain wall keel frame according to claim 1, characterized in that, The inner circumference of the crossbeam sleeve is provided with several connecting posts, which are arranged parallel to the length direction of the crossbeam. The connecting posts are connected to the fasteners, and the connecting posts are provided with notches in the length direction.
4. The semi-prefabricated curtain wall keel frame according to claim 1, characterized in that, The inner circumference of the column is provided with a column sleeve.
5. The semi-prefabricated curtain wall keel frame according to claim 1, characterized in that, Each of the columns is also provided with angle steel connectors on both sides. The angle steel connectors are located on the upper half of the column near the indoor side. A part of the angle steel connector is attached to and connected to the column, and the other part extends into the indoor side of the column.
6. The semi-prefabricated curtain wall keel frame according to claim 5, characterized in that, A pair of symmetrically arranged angle steel connectors are connected and fixed to the column together by long bolts and washers. The angle steel connectors are provided with oval holes through which the long bolts pass.
7. The semi-prefabricated curtain wall keel frame according to claim 1, characterized in that, Multiple handrails are also provided between the pair of columns, with the handrails positioned at the lower part of the columns and arranged close to the interior side.
8. The semi-prefabricated curtain wall keel frame according to claim 1, characterized in that, A pair of columns are connected by crossbeams near their upper and lower ends, and 2 to 5 crossbeams are provided at equal intervals in the middle. The cross-sectional dimensions of the crossbeams are smaller than the cross-sectional dimensions of the columns.
9. The semi-prefabricated curtain wall keel frame according to claim 1, characterized in that, The sub-frame connection structure includes a long connecting groove located in the middle of the side of the column or beam, and short connecting grooves located on both sides of the long connecting groove; the beam is also connected to a glass support plate on the side where the sub-frame connection structure is located.
10. The semi-prefabricated curtain wall keel frame according to claim 1, characterized in that, The curtain wall glass includes operable panes in the central area and fixed panes at the top and bottom.