A curtain wall structure for a deformation joint and a construction method thereof

Abstract

The application discloses a curtain wall structure for a deformation joint and a construction method thereof, and relates to the technical field of building curtain walls. The structure comprises a curtain wall unit arranged on the outer side of a building main body, a base, a connecting unit and an adjusting unit. The key point is that sliding bases are arranged on the floors on both sides of the deformation joint. The connecting unit comprises a sliding connecting assembly, one end of the assembly is slidably arranged in the sliding base, and the other end is provided with a hanging groove for hanging the curtain wall unit. The curtain wall unit is installed by cooperation of the hanging part thereon and the hanging groove. Meanwhile, the adjusting unit across the deformation joint connects the curtain wall units on both sides. The application allows the curtain wall unit to slide when the building main body is displaced by cooperation of the sliding connecting assembly and the sliding base, so that the deformation of the deformation joint is systematically and integrally buffered and adapted. In combination with a unique locking mechanism between curtain wall units and a modular construction method, the beneficial effects of structural safety, complete appearance, efficient construction and low maintenance cost are realized.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a curtain wall structure for expansion joints and its construction method. Background Technology

[0002] In large buildings, expansion joints are typically required to address structural deformation and stress caused by factors such as temperature changes, concrete shrinkage, uneven foundation settlement, and earthquakes. When a curtain wall, as the building's external envelope, crosses an expansion joint, its design must meet two core requirements: first, it must allow relative displacement of the main building structure at the expansion joint without damaging the curtain wall itself; second, it must maintain the continuity and integrity of the curtain wall's appearance and ensure its waterproof, thermal insulation, and other physical properties.

[0003] Existing technologies have proposed various node treatment solutions for curtain wall expansion joints. For example, Chinese invention patent application CN120231389A (published on July 1, 2025) discloses a concealed curtain wall sealing structure and construction method for exterior wall expansion joints, including positioning components fixed on both sides of the expansion joint; EPDM expansion strips are provided between two sets of positioning components; the EPDM expansion strips can completely cover the expansion joints; this invention uses EPDM expansion strips, chemical bolts, keels, and aluminum plates to fix at the expansion joints, and hides the expansion joints by setting expansion joint cover plates and expansion joint cover plate buckles, thereby achieving the desired appearance effect.

[0004] For example, Chinese invention patent application CN117779998A (published on March 29, 2024) discloses a universal node for connecting expansion joints of curtain walls on different planes, applied to glass walls. It includes two vertical keels and accordion rubber strips, as well as aluminum single panel assemblies. The aluminum single panel assembly includes two inner aluminum single panels that are staggered vertically, which are sealed to the two glass walls and are connected to the two vertical keels one by one through a first connecting part. It also includes two outer aluminum single panels that are staggered vertically, which are located at the top between the two vertical keels and are connected to the two vertical keels one by one through a second connecting part.

[0005] For example, Chinese utility model patent application CN219569303U (published on August 22, 2023) discloses a structural node for an expansion joint in an aluminum panel curtain wall, including an elastic unit, two support units, a first connecting unit, a second connecting unit, a curtain wall unit, a first cover plate unit, a second cover plate unit, a filling unit, and a sealing unit. The elastic unit is fixed at the expansion joint; the two support units are respectively connected to the elastic unit; the first connecting unit and the second connecting unit are respectively fixed on the outside of the two support units; the curtain wall unit is fixed on the outside of the support units; the first cover plate unit is fixed on the first connecting unit; the second cover plate unit is fixed on the second connecting unit; the filling unit is fixed between the first cover plate unit and the second cover plate unit; and the sealing unit fills the space between the first connecting unit, the second connecting unit, and the curtain wall unit. Its advantage lies in placing the second cover plate unit and the sealing unit on the inside of the curtain wall unit, thus solving the problem of the curtain wall appearing discontinuous due to the close proximity of the two sealant layers on both sides of the cover plate.

[0006] However, existing technologies generally share a common limitation: they primarily focus on partially covering, sealing, and providing limited flexible connections at the expansion joint openings (i.e., the curtain wall cladding layer), representing a "end-stage treatment" approach. This approach fails to systematically address the impact of building displacement on the overall internal forces of the curtain wall from the perspective of the curtain wall support structure. The curtain wall units themselves are still installed on the main structure using traditional fixing methods. When significant relative displacement occurs on both sides of the expansion joint, stress may still concentrate at the connection points, posing a long-term risk of damage to the curtain wall panels or connectors. Furthermore, it does not adequately consider the installation efficiency of the curtain wall units themselves and the reliable connections between them.

[0007] Therefore, there is an urgent need for a systematic solution that can start from the supporting structure, allow the curtain wall system to deform in a coordinated manner as a whole, and at the same time ensure convenient installation, reliable connection, and beautiful appearance. Summary of the Invention

[0008] To address the above technical problems, the present invention provides a curtain wall structure for expansion joints, comprising: A curtain wall unit, wherein the curtain wall unit is disposed on the outside of the main building body; An adjustment unit is provided on the outside of the expansion joint of the main building, and both sides of the adjustment unit are connected to the curtain wall unit respectively. A base, which is set on the floor slab of the main building; A connecting unit, which is mounted on the base and is capable of connecting to the curtain wall unit; Sliding bases are provided on the floor slabs on both sides of the expansion joint, and the sliding bases are arranged parallel to the curtain wall units. The connecting unit includes a sliding connecting component, one end of which is movably disposed in a sliding base and can slide along the length direction of the sliding base; the other end of the sliding connecting component is provided with a mounting groove. The curtain wall unit is also equipped with a mounting bracket on the side facing the main building, and the mounting bracket is attached to a mounting groove. This invention achieves the purpose of reducing the deformation of the glass curtain wall through a sliding connection assembly, a sliding base, and an adjustment assembly.

[0009] Furthermore, the curtain wall unit also includes an outer frame and an outer frame installed inside the outer frame. The outer frame is provided with a hanger on the side facing the main building, and a locking mechanism is provided on the two vertical sides of the outer frame perpendicular to the main building, which can connect adjacent curtain wall units in the vertical direction together.

[0010] Furthermore, the outer frame is provided with a groove, and the locking mechanism is disposed in the groove. The locking mechanism includes a snap-fit ​​plate and a snap-fit ​​connector. The top of the snap-fit ​​plate is a mating part that bends outward. An opening is provided on the lower side of the mating part. The position of the opening corresponds to the position of the snap-fit ​​connector of the upper curtain wall unit. The snap-fit ​​connector is elastic and can be pressed inward along the mating part and spring back when it reaches the opening, thereby realizing the snap-fit.

[0011] Furthermore, a spring is provided on the card connector.

[0012] Furthermore, the maximum distance between two mating parts of the same curtain wall unit is greater than the maximum distance between two snap-fit ​​joints of the same curtain wall unit.

[0013] Furthermore, adhesive strips are installed between adjacent curtain wall units.

[0014] Furthermore, the adjustment unit includes a fixing component and an elastic component. The fixing component is installed on the outer frame of the curtain wall unit on both sides of the adjustment unit, and the elastic component is connected between the fixing components.

[0015] Furthermore, the fastener is bolted or welded to the outer frame, and the fastener and the elastic element are interlocked; the fastener is provided with an interlocking groove, and the elastic element has interlocking joints at both ends of its sides. As a conventional technical means, the specific connection structure and dimensions of the fastener and the elastic element will not be described in detail here.

[0016] Furthermore, the fasteners and the outer frame are an integrated structure.

[0017] Furthermore, the length of the elastic element is greater than the width of the expansion joint, and the ultimate compression distance of the elastic element is less than the width of the expansion joint.

[0018] Furthermore, the elastic element is a bellows board, made of elastic materials, including rubber and silicone.

[0019] Furthermore, the elastic element is made of metal and includes folded plates. Adjacent folded plates form a "V" shape and are connected by a pivot, allowing the folded plates to rotate along the pivot.

[0020] Furthermore, the sliding connection assembly also includes a sliding mounting plate and a sliding component. The sliding mounting plate has a sliding mounting groove at one end of the floor slab and a sliding hook groove at the end of the sliding mounting plate extending out of the floor slab.

[0021] Furthermore, the length of the sliding mounting groove is greater than the length of the expansion joint.

[0022] Furthermore, the sliding mounting groove is provided along the length direction of the sliding base and corresponds to the position of the sliding base.

[0023] Furthermore, the sliding base is provided with a sliding groove, the sliding component is installed in the sliding groove, the upper part passes through the sliding mounting groove, and is limited by a gasket and bolts.

[0024] Furthermore, the connection unit also includes a fixed connection component, which includes a fixed mounting plate and a fastener. The fixed mounting plate has a fixed mounting groove at one end of the floor slab and a fixed hanging groove at the end of the fixed mounting plate extending out of the floor slab.

[0025] Furthermore, the fixing groove is set perpendicular to the length direction of the fixing base and corresponds to the position of the fixing base.

[0026] Furthermore, the number of fixed mounting slots is two, and the positions of the fixed mounting slots and the mounting pieces attached to them should be set.

[0027] Furthermore, the base also includes a fixed base, the longitudinal axes of the fixed base and the fixed base are coincident, and the fixed base and the fixed base have the same structure.

[0028] Furthermore, the fixed base is provided with a sliding groove, and the fastener is installed in the sliding groove, with its upper part penetrating through the fixed mounting groove and limited by a gasket and bolts.

[0029] This invention provides a construction method for a curtain wall structure with expansion joints, comprising the following steps: Step S1: Install the base. Cut grooves at the designated locations in the floor slab and install the sliding base and the fixed base. Step S2: Install the connecting unit, place the sliding component in the groove of the sliding base, and place the fixing component in the groove of the fixed base; install the sliding mounting plate and the fixed mounting plate on the sliding component and the fixing component respectively; install shims and bolts on the sliding component and the fixing component to ensure that the sliding mounting plate and the fixed mounting plate are installed securely; Step S3: Install the curtain wall units. The installation sequence is from bottom to top. When installing the upper curtain wall unit, along the vertical direction of the lower curtain wall unit, make the mating part at the top of the snap-fit ​​plate of the lower curtain wall unit located outside the snap-fit ​​joint of the upper curtain wall unit. During the lowering process of the upper curtain wall unit, the snap-fit ​​joint continuously descends along the mating part, and its internal spring is continuously compressed. When it reaches the opening, it rebounds to achieve snap-fit. At this time, the upper curtain wall unit is simultaneously hung in the corresponding hanging groove, and the installation is completed. Step S4: Install the adjustment unit, install the fastener on the corresponding curtain wall unit, and snap the elastic element onto the fastener.

[0030] Compared with existing technologies, the advantages and effects of this application are as follows: 1. This invention creatively sets sliding bases on the floor slab structure on both sides of the expansion joint, and installs the curtain wall units on these sliding bases via connecting units with sliding connection components. This fundamental design allows the curtain wall units to slide freely along the expansion joint, rather than being rigidly fixed to a single point on the building structure. When the building structure experiences relative displacement at the expansion joint due to various reasons, the curtain wall units can passively and smoothly follow the movement via the displacement of the sliding bases on the sliding connection components. This transforms the concentrated stress caused by structural deformation on the curtain wall into harmless sliding, achieving a systematic and holistic buffering and adaptation to deformation. This significantly improves the safety and durability of the curtain wall system at the expansion joint from the root. Simultaneously, combined with flexible adjustment units spanning the expansion joint, it ensures both the visual continuity and physical enclosure of the curtain wall facade, while providing a second layer of deformation adaptation protection. The entire system is ingeniously conceived, integrating a dynamic adaptation mechanism into the supporting structure rather than merely as a surface decoration.

[0031] 2. The construction method provided by this invention has clear steps, strong logic, and is highly consistent with the structural design. This method clearly defines the process flow: first, install the base and connecting units (forming a sliding support track); then, hang and lock the curtain wall units from bottom to top; and finally, install the adjustment units. This sequence ensures that the accuracy of the support system is established first, and the curtain wall units are installed as standardized modules, greatly improving construction efficiency, ensuring installation quality, and reducing the complexity of on-site measurements and human error. In particular, the curtain wall units utilize a "sliding-clamping" installation method with a locking mechanism, which, in conjunction with the lower unit and the horizontal mounting groove, achieves rapid and precise positioning and fixing, perfectly embodying the industrialized and modular construction concept.

[0032] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0033] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0035] in: Figure 1 This is a schematic diagram of a curtain wall structure used for expansion joints; Figure 2 This is an exploded view of a curtain wall structure used for expansion joints; Figure 3 This is a schematic diagram of a curtain wall unit for a curtain wall structure used for expansion joints; Figure 4 A schematic diagram of a locking mechanism for a curtain wall unit in a curtain wall structure used for expansion joints; Figure 5 This is a detailed drawing of an adjustment unit for a curtain wall structure used for expansion joints. Figure 6 An exploded view of a sliding connection assembly and sliding base for a curtain wall structure with expansion joints; Figure 7 This is an anatomical diagram of a fixed connection component and a fixed base for a curtain wall structure used for expansion joints.

[0036] Figure 8 This is a flowchart of a construction method for a curtain wall structure using expansion joints.

[0037] Explanation of reference numerals in the attached drawings: 100 - Curtain wall unit; 110 - Outer frame; 111 - Hanger; 112 - Locking mechanism; 1121 - Clip plate; 1122 - Clip connector; 120 - Insulating glass; 200 - Adjustment unit; 210 - Fixing element; 220 - Elastic element; 300 - Connection unit; 310 - Sliding connection assembly; 311 - Sliding mounting plate; 312 - Sliding mounting groove; 313 - Sliding component; 314 - Sliding hook groove; 320 - Fixed connection assembly; 321 - Fixed mounting plate; 322 - Fixed mounting groove; 323 - Fixing component; 324 - Fixed hook groove; 400 - Base; 410 - Sliding base; 420 - Fixed base; 430 - Slide groove; 500 - Main building structure; 510 - Floor slab; 520 - Expansion joint. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0039] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0040] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0041] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it have an "or" relationship.

[0042] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0043] It should also 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.

[0044] Example 1 This embodiment describes a curtain wall structure for expansion joints.

[0045] Please refer to Figure 1-2 As shown, Figure 1 This is a schematic diagram of a curtain wall structure used for expansion joints; Figure 2 This is an exploded view of a curtain wall structure used for expansion joints.

[0046] A curtain wall structure for expansion joints, comprising: Curtain wall unit 100, wherein the curtain wall unit 100 is disposed on the outside of the main building 500; An adjustment unit 200 is disposed on the outside of the expansion joint 520 of the main building 500, and the two sides of the adjustment unit 200 are respectively connected to the curtain wall unit 100. The base 400 is disposed on the floor slab 510 of the main building 500; A connecting unit 300 is mounted on the base 400 and is capable of connecting to the curtain wall unit 100; Sliding bases 410 are provided on the floor slabs 510 on both sides of the expansion joint 520, and the sliding bases 410 are arranged parallel to the curtain wall units 100. The connecting unit 300 includes a sliding connecting component 310, one end of which is movably disposed in the sliding base 410 and can slide along the length direction of the sliding base 410. The other end of the sliding connecting component 310 is provided with a mounting groove 314. The curtain wall unit 100 is also provided with a hanging component 111 on the side facing the main building 500, and the hanging component 111 is hung in the hanging groove 314.

[0047] The technical advantages of this embodiment are as follows: Sliding bases are installed on the floor slab structures on both sides of the expansion joint, and the curtain wall units are mounted on these bases via connecting units with sliding connection components. This fundamental design allows the curtain wall units to slide freely along the expansion joint, rather than being rigidly fixed to a single point on the building structure. When the building structure experiences relative displacement at the expansion joint due to various reasons, the curtain wall units can passively and smoothly follow the movement via the displacement of the sliding connection components on the sliding bases. This transforms the concentrated stress caused by structural deformation on the curtain wall into harmless sliding, achieving a systematic and holistic buffering and adaptation to deformation. This significantly improves the safety and durability of the curtain wall system at the expansion joint from its root. Simultaneously, combined with flexible adjustment units spanning the expansion joint, it ensures both the visual continuity and physical enclosure of the curtain wall facade, while also providing a second layer of deformation adaptation protection. The entire system is ingeniously conceived, integrating a dynamic adaptation mechanism into the supporting structure rather than merely as a surface decoration.

[0048] Example 2 Based on Embodiment 1, this embodiment discloses a further optimization of the curtain wall unit for a curtain wall structure with expansion joints.

[0049] Please refer to Figure 3-4 As shown, Figure 3 This is a schematic diagram of a curtain wall unit for a curtain wall structure used for expansion joints; Figure 4 A schematic diagram of a locking mechanism for a curtain wall unit in a curtain wall structure used for expansion joints; Furthermore, the curtain wall unit 100 also includes an outer frame 110 and an outer frame 120 installed inside the outer frame. The outer frame 110 is provided with a hanger 111 on the side facing the building body 500. The outer frame 110 is provided with a locking mechanism 112 on the two vertical sides perpendicular to the building body 500, which can connect adjacent curtain wall units 100 in the vertical direction together.

[0050] Furthermore, the outer frame 110 is provided with a groove, and the locking mechanism 112 is disposed in the groove. The locking mechanism 112 includes a snap-fit ​​plate 1121 and a snap-fit ​​connector 1122. The top of the snap-fit ​​plate 1121 is a mating part that bends outward. An opening is provided on the lower side of the mating part. The position of the opening corresponds to the position of the snap-fit ​​connector 1122 of the upper curtain wall unit 100. The snap-fit ​​connector 1122 is elastic and can be pressed inward along the mating part and spring back when it reaches the opening, thereby realizing the snap-fit.

[0051] Furthermore, a spring is provided on the card connector 1122.

[0052] Furthermore, the maximum distance between the two mating parts of the same curtain wall unit 100 is greater than the maximum distance between the two snap-fit ​​connectors 1122 of the same curtain wall unit 100.

[0053] The technical advantages of this embodiment are as follows: By setting a locking mechanism including a snap-fit ​​plate and a snap-fit ​​connector on the vertical side of the outer frame, a fast and reliable mechanical snap-fit ​​connection between adjacent upper and lower curtain wall units is achieved. During installation, the snap-fit ​​connector of the upper unit slides down along the mating part of the lower unit and compresses the spring. After reaching the opening position, it automatically springs back and snaps in, completing the locking. This "guide-compression-spring-back snap-fit" installation method eliminates the need for complex tools or precise alignment of bolt holes at height, greatly improving installation efficiency, and is especially suitable for the rapid construction of high-rise curtain walls. At the same time, the locking mechanism is hidden in the groove of the outer frame, without affecting the flatness and aesthetics of the curtain wall appearance. The snap-fit ​​structure provides a stable vertical connection, which, combined with the horizontal sliding connection, forms a robust yet flexible curtain wall grid system.

[0054] Example 3 Based on Embodiment 1, this embodiment discloses a further optimization of the adjustment unit for a curtain wall structure with expansion joints.

[0055] Please refer to Figure 5 As shown, Figure 5 This is a detailed drawing of an adjustment unit for a curtain wall structure used for expansion joints. Furthermore, the adjustment unit 200 includes a fixing member 210 and an elastic member 220. The fixing member 210 is installed on the outer frame 110 of the curtain wall unit 100 on both sides of the adjustment unit 200, and the elastic member 220 is connected between the fixing members 210.

[0056] Furthermore, the fastener 210 is bolted or welded to the outer frame 110, and the fastener 210 and the elastic element 220 are snapped together.

[0057] Furthermore, the fastener 210 and the outer frame 110 are an integral structure.

[0058] Furthermore, the length of the elastic element 220 is greater than the width of the expansion joint 520, and the ultimate compression distance of the elastic element 220 is less than the width of the expansion joint 520.

[0059] Furthermore, the elastic element 220 is a bellows board made of elastic material, including rubber and silicone.

[0060] Furthermore, the elastic element 220 is made of metal and includes folded plates. Adjacent folded plates form a "V" shape and are connected by a pivot. The folded plates can rotate along the pivot.

[0061] The technical advantages of this embodiment are as follows: The adjustment unit, acting as a flexible bridge connecting the curtain walls on both sides of the expansion joint, provides crucial deformation compensation and appearance concealment functions. Employing an elastic element in the form of a bellows plate (rubber / silicone) or metal folding plate, it possesses excellent elasticity, weather resistance, and durability. Its design, with a length greater than the width of the expansion joint, ensures effective coverage of the gap at all times; while the setting of a limit compression distance less than the width of the expansion joint prevents damage under extreme compression conditions. This unit is easily connected to the curtain wall frame via fasteners (clamping or bolting), exhibiting a high degree of modularity. Installation and subsequent replacement and maintenance are very convenient, making it a key component ensuring the appearance integrity and physical performance of the curtain wall under dynamic deformation.

[0062] Example 4 Based on Embodiment 1, this embodiment discloses a further optimization of the connection unit and base for a curtain wall structure with expansion joints.

[0063] Please refer to Figure 6-7 As shown, Figure 6 An exploded view of a sliding connection assembly and sliding base for a curtain wall structure with expansion joints; Figure 7 This is an anatomical diagram of a fixed connection component and a fixed base for a curtain wall structure used for expansion joints.

[0064] Furthermore, the sliding connection assembly 310 also includes a sliding mounting plate 311 and a sliding member 313. The sliding mounting plate 311 is provided with a sliding mounting groove 312 at one end of the floor slab 510, and a sliding hook groove 314 is provided at the end of the sliding mounting plate 311 extending out of the floor slab 510.

[0065] Furthermore, the length of the sliding hook groove 314 is greater than the length of the expansion joint 520.

[0066] Furthermore, the sliding mounting groove 312 is arranged along the length direction of the sliding base 410 and corresponds to the position of the sliding base 410.

[0067] Furthermore, the sliding base 410 is provided with a sliding groove 430, and the sliding member 313 is installed in the sliding groove 430, with its upper part penetrating through the sliding mounting groove 312 and limited by a gasket and bolts.

[0068] Furthermore, the connection unit 300 also includes a fixed connection component 320, which includes a fixed mounting plate 321 and a fastener 323. The fixed mounting plate 321 is provided with a fixed mounting groove 322 at one end of the floor slab 510, and a fixed hanging groove 324 is provided at the end of the fixed mounting plate 321 extending out of the floor slab 510.

[0069] Furthermore, there are two fixed mounting slots 324, and the positions of the fixed mounting slots 324 and the mounting pieces 111 attached thereto should be set.

[0070] Furthermore, the base 400 also includes a fixed base 420, the fixed base 420 and the fixed base 410 having the same longitudinal axis, and the fixed base 420 and the fixed base 410 having the same structure.

[0071] Furthermore, the fixed base 420 is provided with a sliding groove 430, and the fixing member 323 is installed in the sliding groove 430, with its upper part penetrating through the fixing mounting groove 322 and limited by a gasket and bolts.

[0072] The technical advantages of this embodiment are as follows: The design of the sliding connection assembly and the sliding base is the core mechanical structure of this invention. The movement of the sliding element within the sliding groove provides a low-friction, smooth displacement path. The separate design of the sliding mounting groove and the sliding hook-up groove allows the mounting plate to be fixed to the sliding element first, and then the curtain wall unit to be hooked up as a whole, realizing the process of "adjusting and fixing first, then hooking and installing", simplifying the difficulty of high-altitude adjustment operations. The design of the sliding hook-up groove being longer than the expansion joint length provides sufficient travel for sliding, avoiding jamming or damage caused by movement limit. The fixed connection assembly is used for conventional installation in non-expansion joint areas, complementing the structure of the sliding connection assembly, together forming a complete, flexible, and reliable curtain wall support connection system. The entire base and connection unit system has a clear structure and well-defined stress, facilitating standardized production and quality control.

[0073] Example 5 Based on any of the above embodiments, this embodiment discloses a construction method for a curtain wall structure with expansion joints.

[0074] Please refer to Figure 8 As shown, Figure 8 This is a flowchart of a construction method for a curtain wall structure using expansion joints.

[0075] A construction method for a curtain wall structure with expansion joints includes the following steps: Step S1: Install base 400, cut grooves at designated positions on floor slab 510, and install sliding base 410 and fixed base 420; Step S2: Install the connecting unit 300, place the sliding member 313 in the slide groove 430 of the sliding base 410, and place the fixing member 323 in the slide groove 430 of the fixed base 420; install the sliding mounting plate 311 and the fixed mounting plate 321 on the sliding member 313 and the fixing member 323 respectively; install washers and bolts on the sliding member 313 and the fixing member 323 to ensure that the sliding mounting plate 311 and the fixed mounting plate 321 are installed securely. Step S3: Install the curtain wall unit 100. The installation sequence is from bottom to top. When installing the upper curtain wall unit 100, along the vertical direction of the lower curtain wall unit 100, make the mating part at the top of the snap plate 1121 of the lower curtain wall unit 100 located outside the snap connector 1122 of the upper curtain wall unit 100. During the lowering process of the upper curtain wall unit 100, the snap connector 1122 continuously descends along the mating part, and its internal spring is continuously compressed. When it reaches the opening, it rebounds to achieve snapping. At this time, the upper curtain wall unit 100 is simultaneously hung in the corresponding hanging groove, and the installation is completed. Step S4: Install the adjustment unit 200, install the fastener 210 on the corresponding curtain wall unit 100, and snap the elastic element 220 onto the fastener 210.

[0076] The technical advantages of this embodiment: The construction method provided by this invention has clear steps, strong logic, and is highly consistent with the structural design. This method clearly defines the process flow: first, install the base and connecting units (forming a sliding support track); then, hang and lock the curtain wall units from bottom to top; and finally, install the adjustment units. This sequence ensures that the accuracy of the support system is established first, and the curtain wall units are installed as standardized modules, greatly improving construction efficiency, ensuring installation quality, and reducing the complexity of on-site measurements and human error. In particular, the curtain wall units utilize a "sliding-clamping" installation method with a locking mechanism, which, in conjunction with the lower unit and the horizontal hanging groove, achieves rapid and precise positioning and fixing, perfectly embodying the industrialized and modular construction concept.

[0077] The above description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. Various modifications and variations are possible with respect to the present invention. Any changes, modifications, substitutions, integrations, and parameter alterations to these embodiments within the spirit and principles of the present invention fall within the scope of protection of the claims of the present invention.

Claims

1. A curtain wall structure for expansion joints, comprising: A curtain wall unit (100) is disposed on the outside of the main building (500); An adjustment unit (200) is provided on the outside of the expansion joint (520) of the main building (500), and the two sides of the adjustment unit (200) are respectively connected to the curtain wall unit (100); A base (400) is provided on the floor slab (510) of the main building (500); A connecting unit (300) is mounted on the base (400) and is capable of connecting the curtain wall unit (100). The feature is that sliding bases (410) are provided on the floor slabs (510) on both sides of the expansion joint (520), and the sliding bases (410) are arranged parallel to the curtain wall units (100). The connecting unit (300) includes a sliding connecting component (310), one end of which is movably disposed in the sliding base (410) and can slide along the length direction of the sliding base (410). The other end of the sliding connecting component (310) is provided with a mounting groove (314). The curtain wall unit (100) is also provided with a hanging component (111) on the side facing the main building (500), and the hanging component (111) is hung in the hanging groove (314).

2. A curtain wall structure for expansion joints according to claim 1, characterized in that, The curtain wall unit (100) also includes an outer frame (110) and an outer frame (120) installed inside the outer frame. The outer frame (110) has a hanger (111) on the side facing the building body (500). The outer frame (110) has a locking mechanism (112) on two vertical sides perpendicular to the building body (500) to connect adjacent curtain wall units (100) in the vertical direction.

3. A curtain wall structure for expansion joints according to claim 1 or 2, characterized in that, The section unit (200) includes a fixing member (210) and an elastic member (220). The fixing member (210) is installed on the outer frame (110) of the curtain wall unit (100) on both sides of the adjustment unit (200). The elastic member (220) is connected between the fixing members (210).

4. A curtain wall structure for expansion joints according to claim 3, characterized in that, The fastener (210) is bolted or welded to the outer frame (110), and the fastener (210) and the elastic element (220) are snapped together.

5. A curtain wall structure for expansion joints according to claim 4, characterized in that, The elastic element (220) is a bellows board made of elastic material.

6. A curtain wall structure for expansion joints according to claim 4, characterized in that, The elastic element (220) is made of metal and includes a folded plate. Adjacent folded plates form a "V" shape and are connected by a pivot. The folded plate can rotate along the pivot.

7. A curtain wall structure for expansion joints according to claim 1, characterized in that, The sliding connection assembly (310) further includes a sliding mounting plate (311) and a sliding member (313). The sliding mounting plate (311) is provided with a sliding mounting groove (312) at one end of the floor slab (510), and a sliding hook groove (314) is provided at the end of the sliding mounting plate (311) extending out of the floor slab (510).

8. A curtain wall structure for expansion joints according to claim 7, characterized in that, The length of the sliding mounting groove (314) is greater than the length of the expansion joint (520).

9. A curtain wall structure for expansion joints according to claim 7, characterized in that, The sliding base (410) is provided with a sliding groove (430), and the sliding member (313) is installed in the sliding groove (430), with its upper part penetrating the sliding mounting groove (312) and limited by a gasket and bolts.

10. The construction method for a curtain wall structure with expansion joints according to any one of claims 1-9, characterized in that, Includes the following steps: Step S1: Install the base (400), cut a groove at the designated position in the floor slab (510), and install the sliding base (410) and the fixed base (420). Step S2: Install the connecting unit (300), place the sliding member (313) in the groove (430) of the sliding base (410), and place the fixing member (323) in the groove (430) of the fixed base (420); install the sliding mounting plate (311) and the fixed mounting plate (321) on the sliding member (313) and the fixing member (323) respectively; install the gaskets and bolts on the sliding member (313) and the fixing member (323) to ensure that the sliding mounting plate (311) and the fixed mounting plate (321) are installed securely; Step S3: Install the curtain wall unit (100). The installation sequence is from bottom to top. When installing the upper curtain wall unit (100), along the vertical direction of the lower curtain wall unit (100), make the mating part at the top of the snap plate (1121) of the lower curtain wall unit (100) located outside the snap connector (1122) of the upper curtain wall unit (100). During the lowering process of the upper curtain wall unit (100), the snap connector (1122) continuously descends along the mating part, and its internal spring is continuously compressed. When it reaches the opening, it rebounds to achieve snapping. At this time, the upper curtain wall unit (100) is simultaneously hung in the corresponding hanging groove to complete the installation. Step S4: Install the adjustment unit (200), install the fastener (210) on the corresponding curtain wall unit (100), and snap the elastic element (220) onto the fastener (210).

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