An adjustable prefabricated subframe for variable cross-section glass in a glass curtain wall

Abstract

This utility model discloses an adjustable prefabricated sub-frame for variable cross-section glass in glass curtain walls, including tempered insulated glass. A column is provided on one side of the tempered insulated glass, and a foam rod is bonded to the column. A glass support block is fixed to one end of the foam rod. A first crossbeam cover is provided on the left side of the glass support block. An adjustable crossbeam is located on the left side of the first crossbeam cover, and a second crossbeam cover is installed on the left side of the crossbeam. This optimized adjustable sub-frame allows for easy adjustment to maintain a flat glass surface even with different glass thicknesses on the exterior glass curtain wall. It also offers good stability, a simple structure, saves time and labor, and is highly practical. By verifying the actual thickness required for the glass curtain wall after segmentation based on the actual site dimensions, the adjustable sub-frame can be mass-produced using molds, making the entire construction process, installation, and disassembly more convenient.

Description

Technical Field

[0001] This utility model relates to the field of building curtain wall engineering technology, specifically to an assembled adjustable sub-frame for variable cross-section glass in a glass curtain wall. Background Technology

[0002] Glass curtain walls are a new type of wall structure in modern times. The most distinctive feature they give to buildings is the organic unity of architectural aesthetics, functionality, energy conservation, and structure. The embodiment of "beauty" and "strength" enhances the contrast between "virtual" and "solid." Considering the safety, economy, and aesthetics of glass curtain walls, different thicknesses of glass are connected at the upper and lower splicing positions of the inter-floor beams, in conjunction with the installation positions of the embedded structural parts. This not only ensures the appearance of the facade but also reduces the self-weight of the components and enhances safety.

[0003] Currently, there is a lack of standardized installation procedures for variable cross-section glass in exterior curtain wall projects. The various construction techniques used for installation and dismantling are extremely cumbersome, causing inconvenience to workers. Improvements are needed in this regard. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide an assembled adjustable sub-frame for variable cross-section glass in glass curtain walls, so as to solve the problems mentioned in the background art.

[0005] An adjustable sub-frame for variable cross-section glass in a glass curtain wall includes tempered insulated glass. A column is provided on one side of the tempered insulated glass, and a foam rod is bonded to the column. A glass support block is fixed to one end of the foam rod. A first crossbeam cover is provided on the left side of the glass support block. A crossbeam is adjustable on the left side of the first crossbeam cover, and a second crossbeam cover is installed on the left side of the crossbeam.

[0006] Preferably, a sealant layer is provided between the column and the foam rod, and the sealant layer is composed of structural sealant and double-sided adhesive.

[0007] Preferably, a bolt and nut assembly is installed between the crossbeam cover and the crossbeam.

[0008] Preferably, the column, glass support block, crossbeam cover one, crossbeam and crossbeam cover two are all made of aluminum alloy.

[0009] The beneficial effects of this utility model are as follows: The optimized adjustable sub-frame allows for easy adjustment of glass thicknesses on the exterior glass curtain wall, ensuring a smooth glass surface. It also offers good fixation, a simple structure, saves time and effort, and is highly practical. Based on the actual dimensions of the site and after verifying the required thickness of the glass curtain wall after segmentation, the adjustable sub-frame is mass-produced using molds. In a dedicated factory workshop, the adjustable sub-frame is glued to the glass and allowed to dry. After the structural adhesive has cured, the adjustable screws are inserted into the grooves of the sub-frame. The number and spacing of the screws are calculated to ensure structural safety. The screws are then placed on the glass decorative beam, and the nuts are adjusted according to the glass thickness to ensure the upper and lower glass surfaces are flat. The dimensions of the upper and lower cover plates are calculated based on different glass thicknesses, and custom-made in batches. Finally, the beam cover plates are installed. This process makes installation and disassembly more convenient. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0011] In the diagram: 1. Tempered insulated glass; 2. Column; 3. Sealing layer; 4. Foam rod; 5. Glass support block; 6. Horizontal beam cover one; 7. Bolt and nut assembly; 8. Horizontal beam; 9. Horizontal beam cover two. Detailed Implementation

[0012] like Figure 1 As shown, an adjustable sub-frame for variable cross-section glass in a glass curtain wall includes tempered insulated glass 1. A column 2 is provided on one side of the tempered insulated glass 1. A foam rod 4 is bonded to the column 2. A glass support block 5 is fixed to one end of the foam rod 4. A crossbeam cover 6 is provided on the left side of the glass support block 5. A crossbeam 8 is adjustable on the left side of the crossbeam cover 6. A bolt and nut assembly 7 is installed between the crossbeam cover 6 and the crossbeam 8. A second crossbeam cover 9 is installed on the left side of the crossbeam 8.

[0013] A sealant layer 3 is provided between the column 2 and the foam rod 4. The sealant layer 3 is composed of structural sealant and double-sided adhesive, and the sealant layer 3 serves to bond the column 2 and the foam rod 4.

[0014] The aforementioned column 2, glass support block 5, crossbeam cover 1 6, crossbeam 8, and crossbeam cover 2 9 are all made of aluminum alloy.

[0015] The core working principle of this prefabricated adjustable subframe lies in its ability to flexibly adapt to and support glass panels of varying thicknesses (variable cross-section glass) through prefabricated, height-adjustable subframe components, achieving a flat curtain wall surface, convenient installation, and reliable fixation. Its operation can be divided into two main stages: factory prefabrication and on-site installation and adjustment.

[0016] S1, Factory Prefabrication Stage:

[0017] Size verification and mass production: Based on the actual size of the curtain wall panels on site and the glass thickness combination required by the design (variable cross-section requirements), accurately calculate the matching size of the sub-frames (mainly the horizontal beam 8, the horizontal beam cover 1 6, the horizontal beam cover 2 9 and related connectors) required for each installation position.

[0018] Modular production utilizes specialized molds to mass-produce aluminum alloy sub-frame components (column 2, glass support block 5, crossbeam cover 1 6, crossbeam 8, crossbeam cover 2 9, etc.) in the factory workshop, ensuring precision and consistency.

[0019] The subframe is pre-bonded to the glass. The core adjustable subframe assembly (usually referring to the part including the crossbeam 8, the crossbeam cover 6, and the bolt and nut assembly 7 for initial connection) is pre-bonded and fixed to the edge of the tempered insulated glass 1 in the corresponding position using structural adhesive (especially the edge area that needs to be connected with adjacent glass of different thicknesses). This step is carried out in a controlled factory environment.

[0020] Curing and pre-installing the screws, waiting for the structural adhesive to fully cure and reach the design strength. Then, the pre-calculated number and spacing (to ensure that the stress safety requirements are met) of adjusting screws (as part of the bolt and nut assembly 7) are inserted into the grooves reserved in the sub-frame (usually the crossbeam 8 or the crossbeam cover 6).

[0021] S2, On-site installation and adjustment phase:

[0022] For the main structure installation, the glass units with pre-adhesive subframes and pre-installed screws are transported to the site. First, the vertical support components of the curtain wall—aluminum alloy columns 2—are installed and fixed to the main building structure.

[0023] For sealing, double-sided adhesive and structural sealant are sequentially filled into the gap between column 2 and glass 1 to form a reliable sealant layer 3. Below the sealant layer 3 (indoor side), foam rods 4 are correctly installed and fixed as a backing material for the sealant and to control the shape of the sealant joint.

[0024] The glass unit (tempered insulated glass 1 and its attached subframe) is placed into position under the bottom support. The bottom of the glass 1 is supported by aluminum alloy glass support blocks 5 fixed to the column 2 or the structure, which bear the weight of the glass.

[0025] S3. Connecting the crossbeam and height adjustment:

[0026] Align the pre-attached crossbeam cover 6 (via the adjusting screw on it) with the aluminum alloy crossbeam 8, which serves as the transverse frame.

[0027] Use the bolt and nut assembly 7 (which includes a pre-threaded bolt and a matching nut) to initially connect the crossbeam cover 6 to the crossbeam 8.

[0028] At this point, by rotating the adjusting nut, the vertical height position of the crossbeam cover 6 relative to the crossbeam 8 can be precisely changed. The operator can finely adjust the nut according to the actual thickness of the glass 1 at this position (and the thickness difference between adjacent glass panes), thereby raising or lowering the position of the crossbeam 8 (and the subsequently installed cover plate).

[0029] Ensure that the exposed glass surfaces of adjacent units with glass of different thicknesses (variable cross-section) are perfectly aligned and flat at the inter-layer beams or splice locations. After adjustment, tighten all nuts and securely lock the crossbeam cap 6 onto the crossbeam 8.

[0030] Based on the final adjusted glass thickness and positional relationship, the pre-customized aluminum alloy beam cover 29 is fastened and installed on the left side (outdoor side) of the beam 8, covering the adjustment mechanism and providing aesthetics, protection, and auxiliary sealing. Beam cover 1 6 and beam cover 2 9 together constitute a complete decorative beam cover system.

[0031] In summary, the core subframe components (especially the adjustable parts) are prefabricated and pre-bonded to the glass in the factory. On-site assembly and adjustment are mainly the main tasks, significantly reducing complex on-site operations. The stepless height adjustment mechanism achieved through the bolt and nut assembly 7 (adjusting screw and nut) is the core innovation. It flexibly compensates for differences in glass thickness. The subframe system, composed of the crossbeam cover 6, crossbeam 8, and bolt and nut assembly 7, serves as a support and connecting skeleton for the glass edges and transfers the glass load to the main structure (column 2, crossbeam 8). By precisely adjusting the height of the subframe, the variable cross-section is ensured. The outer surface of the glass remains continuous and flat, meeting architectural aesthetic requirements. The glass support block 5 bears the vertical load (self-weight), and the bolt and nut assembly 7 provides reliable lateral connection and wind pressure resistance. Their quantity and spacing are professionally calculated. The sealant layer 3 (structural adhesive + double-sided adhesive) and foam rod 4 together ensure the airtightness and watertightness of the curtain wall. Factory prefabrication ensures quality, on-site adjustment simplifies installation, and disassembly and maintenance are relatively convenient. This design cleverly uses an adjustable screw mechanism to solve the problem of flatness in the installation of variable cross-section glass. At the same time, combined with the prefabricated concept, it significantly improves construction efficiency and quality.

Claims

1. An adjustable prefabricated sub-frame for variable cross-section glass in a glass curtain wall, comprising tempered insulating glass (1), characterized in that, A column (2) is provided on one side of the tempered insulating glass (1). A foam rod (4) is bonded to the column (2). A glass support block (5) is fixed to one end of the foam rod (4). A crossbeam cover (6) is provided on the left side of the glass support block (5). A crossbeam (8) is adjustable on the left side of the crossbeam cover (6). A crossbeam cover (9) is installed on the left side of the crossbeam (8).

2. The assembled adjustable sub-frame for variable cross-section glass in a glass curtain wall according to claim 1, characterized in that: A sealant layer (3) is provided between the column (2) and the foam rod (4), and the sealant layer (3) is composed of structural sealant and double-sided adhesive.

3. The assembled adjustable sub-frame for variable cross-section glass in a glass curtain wall according to claim 1, characterized in that: A bolt and nut assembly (7) is installed between the crossbeam cover (6) and the crossbeam (8).

4. The prefabricated adjustable sub-frame for variable cross-section glass in a glass curtain wall according to claim 1, characterized in that: The column (2), glass support block (5), crossbeam cover one (6), crossbeam (8) and crossbeam cover two (9) are all made of aluminum alloy.

Images