A multi-arc decorative curtain wall system suitable for complex curved surface modeling and a construction method thereof

Abstract

A multi-arc decorative curtain wall system and its construction method suitable for complex curved surfaces are disclosed. The system includes a supporting keel system and multi-arc decorative panels. The supporting keel is connected to the main structure via connecting plate assemblies and is internally filled with an insulation layer. The multi-arc decorative panels are horizontally spliced ​​from double-arc panels. U-shaped grooves are provided on the inner sides of the double-arc panels for insertion with insert plates. These are combined with a diamond-shaped cavity core formed by stiffening plates for vertical connection, enabling multi-directional adjustment. The supporting keel system uses a hook-type inner panel and spliced ​​outer panel, combined with an elastic expansion joint structure, to solve the problems of poor adaptability to curved surfaces and easy water leakage at joints in traditional curtain walls. Simultaneously, BIM model optimization for positioning and prefabrication during construction improves installation accuracy. This invention combines the ability to handle complex curved surfaces, high waterproof performance, and construction efficiency, making it suitable for modern irregular-shaped building curtain wall projects.

Description

Technical Field

[0001] This invention relates to the field of building curtain wall technology, and in particular to a multi-arc decorative curtain wall system suitable for complex curved shapes and its construction method. Background Technology

[0002] Modern architecture demands increasingly complex curved surfaces, but traditional curtain wall systems, often employing planar or single-curved designs, struggle to meet the complex multi-curved surface requirements of modern buildings. Current technologies for curved curtain walls frequently utilize customized unit panels, which present several problems: high precision requirements for curved unit panels lead to high production costs; rigid joints cannot effectively cope with structural deformation caused by thermal expansion and contraction or wind loads, easily resulting in cracking and poor deformation adaptability; traditional joints rely on elastic sealing materials, which are prone to aging and failure, leading to potential leaks, and the exposed joint structure negatively impacts the overall visual appeal of the curtain wall, with high repair costs. Summary of the Invention

[0003] The purpose of this invention is to provide a multi-arc decorative curtain wall system suitable for complex curved surface shapes. It aims to solve the technical problems of traditional systems, such as insufficient adaptability to complex multi-curved surface shapes, high processing cost and low construction efficiency of curved surface unit panels, deformation stress concentration caused by rigid connection of splicing nodes, and poor waterproof performance and insufficient concealment of joint structures.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] A multi-arc decorative curtain wall system suitable for complex curved surfaces includes a supporting keel system and multi-arc decorative panels. The supporting keel system is located on the outside of the main structure and connected to the floor slab of the main structure via connecting plate assemblies. A first insulation layer is filled within the supporting keel system. The multi-arc decorative panels are located on the outside of the supporting keel system and are connected to the supporting keel system via connecting components. Each multi-arc decorative panel includes double-arc panels. There are multiple sets of double-arc panels arranged vertically. Each set of double-arc panels is spliced ​​together horizontally. A U-shaped groove is provided on the inner side of the double-arc panel near one of the vertical edges. The U-shaped groove provides water... The flat cross-section is a horizontal U-shape, and the groove opening of the U-shaped groove plate faces the corresponding side horizontally; a connecting plate is provided along the vertical length of the other side of the double arc plate; the connecting plate is connected to the connecting assembly, and an insert plate is provided on the connecting plate at the corresponding U-shaped groove plate; the insert plates on adjacent double arc plates are inserted into the U-shaped groove plate; the double arc plate is formed by connecting two arc plate units horizontally, and the arc grooves of the two arc plate units are both facing outward; a stiffening plate is provided inside the connecting seam of the two arc plate units; the stiffening plate is a folded plate, and the stiffening plate and the two arc plate units form a cavity with a horizontal cross-section that is rhomboid; vertically adjacent double arc plates are connected by inserts inserted into the cavity.

[0006] Preferably, the supporting keel system includes a keel frame, inner side plates, and outer side plates; the keel frame includes vertical keels and horizontal keels; each of the vertical and horizontal keels is provided in a set, and the set of vertical and horizontal keels together form a rectangular frame structure; horizontal hanging rods are provided at intervals on the inner side of the keel frame, and horizontal hanging grooves are provided on the horizontal hanging rods; the inner and outer side plates are respectively provided on the inner and outer sides of the keel frame; a horizontal hanging plate is provided on the side of the inner side plate closest to the keel frame; the horizontal hanging plate is connected to the horizontal hanging groove; the outer side plate is spliced ​​from a set of outer side panels; the outer side plate is connected to the vertical keel at the corresponding vertical keel by fastening nails.

[0007] Preferably, the connecting plate assembly includes an upper horizontal plate, a lower horizontal plate, a transition plate, and a clamping plate; the upper and lower horizontal plates are respectively set along the edge of the floor slab at the top and bottom of the floor slab, and the upper and lower horizontal plates are connected by tie bolts passing through the floor slab; the transition plate is attached to the outer surface of the floor slab, and the transition plate is welded to the outer surface of the upper and lower horizontal plates; there are two clamping plates, which are longitudinally spaced and connected to the outer surface of the transition plate, and the two clamping plates are clamped on both sides of the vertical keel at corresponding positions; the clamping plates are connected to the vertical keel by connecting bolts; fireproof rock wool is provided inside the keel frame at the corresponding floor slab position, and the inner surface of the fireproof rock wool is attached to the floor slab; the inner plate is broken at the fireproof rock wool, and sealing plates are respectively provided at the top and bottom of the fireproof rock wool in the gap between the inner plate and the floor slab.

[0008] Preferably, it also includes an expansion joint structure; the expansion joint structure is set between the multi-arc decorative curtain wall system suitable for complex curved surfaces and the adjacent structure; the vertical keel is set on both sides of the expansion joint structure; the expansion joint structure includes a joint plate, elastic strips, interior panels and exterior finishing components; there are two joint plates, arranged longitudinally at intervals, and the horizontal cross-section of the two joint plates is arc-shaped, and the arc grooves of the joint plates are arranged opposite to each other; a second insulation layer is filled in the space between the two joint plates; both ends of each joint plate are fixed to the corresponding vertical keel by pressure plates, and a slot is provided on the side of the pressure plate near the expansion joint; there are two sets of elastic strips, respectively set on the inner and outer sides of the two joint plates; at both ends of the elastic strips... The expansion joint is equipped with a retaining strip; the retaining strip is engaged in a slot; the exterior trim component is located on the outside of the expansion joint and is connected to the outer elastic strip via an outer mounting plate and outer bolts; the interior trim panel is located on the inside of the expansion joint and is connected to the inner elastic strip via an inner mounting plate and inner bolts; the exterior trim component includes an outer panel segment and a side panel segment; the horizontal cross-section of the outer panel segment is a multi-segment continuously arranged arc shape adapted to the multi-arc decorative panel; the inner ends of the side panel segments are bent to form folded plate segments; the two ends of the outer mounting plate are respectively pressed onto the folded plate segments on both sides; a set of outer bolts are vertically spaced between the outer mounting plate and the corresponding elastic strip on one side to connect the outer mounting plate and the elastic strip.

[0009] Preferably, the U-shaped groove plate is elongated and extends vertically; the connecting plate is L-shaped, with one side connected to the connecting assembly by screws, and the other end of the connecting plate connected to the double-arc plate; the insert plate is elongated and connected to the connecting plate, near the vertical side of the double-arc plate, and is inserted into the U-shaped groove plate.

[0010] Preferably, the connecting component is disposed on the keel frame, at the joint of adjacent double-arc panels, or at the two vertical edges of the multi-arc decorative panel; the connecting component includes a fixing plate and a horizontal bar; the fixing plate is connected to the keel frame; the horizontal bar is connected to the outside of the fixing plate and is connected to the connecting plate.

[0011] Preferably, a vertical rod is provided at the end of the horizontal rod; the connecting plate is connected to the vertical rod by screws.

[0012] Preferably, one or both sides of the multi-arc decorative panel are provided with edge curved panels; the edge curved panels are disposed between the multi-arc decorative curtain wall system suitable for complex curved surface shapes and the adjacent structure.

[0013] A construction method for a multi-arc decorative curtain wall system suitable for complex curved surfaces includes the following steps.

[0014] Step 1: Use 3D laser scanning technology to obtain the spatial coordinates of the main structure and establish a BIM model of the curtain wall system.

[0015] Step two: Determine the positioning parameters of the supporting keel system skeleton through simulation analysis, and optimize the splicing scheme of the double arc plate.

[0016] Step 3: The components supporting the keel system are prefabricated in the factory.

[0017] Step 4, Installation of the supporting keel system: Connect the supporting keel system to the floor slab of the main structure through the connecting plate assembly.

[0018] Step 5, Installation of multi-arc decorative panels: Connect the connecting plate of the double-arc panel to the connecting component, and insert the insert plate into the U-shaped groove of the adjacent double-arc panel to form a continuous horizontal arc. Install them in sequence until the last double-arc panel is spliced.

[0019] Preferably, the construction of the expansion joint structure is also included, specifically including the following steps.

[0020] Step 1, joint board installation: Fix the two curved joint boards to the vertical keel using pressure plates.

[0021] Step 2: Fill the gap between the two curved joint boards with the second insulation layer.

[0022] Step 3, Assembly of the elastic strip: Insert the retaining strips at both ends of the elastic strip into the slots of the pressure plate.

[0023] Step 4: Connect the exterior trim components to the outer elastic strip using the outer mounting plate and outer bolts, and connect the interior trim panels to the inner elastic strip using the inner mounting plate and inner bolts.

[0024] Compared with the prior art, the present invention has the following features and beneficial effects.

[0025] 1. The double-arc decorative curtain wall system of the present invention, applicable to complex curved surfaces, adopts standardized arc unit horizontal splicing, combined with U-shaped groove plate and insert plate interlocking structure, reducing processing difficulty and cost; and stiffening plate and diamond cavity design enhance local rigidity, while allowing vertical core connection, simplifying the installation process.

[0026] 2. The horizontal insertion structure of the U-shaped groove plate and the insert plate of the present invention provides displacement margin, effectively releasing deformation stress caused by thermal expansion and contraction or load, and dynamic deformation adaptability; the flexible connection design of the elastic strip and the slot in the expansion joint structure further absorbs deformation and avoids cracking. At the same time, the joint of the present invention adopts a combination of multi-layer elastic strips and external decorative components for sealing, providing double waterproof protection and reducing the risk of water leakage; the concealed joint design improves the overall appearance and reduces maintenance costs.

[0027] 3. The present invention features high structural stability and integrates multiple functions: the supporting keel system incorporates a built-in insulation layer and fireproof rock wool, balancing energy saving and fire resistance; BIM modeling and 3D scanning technology ensure keel positioning accuracy and adapt to complex curved surface shapes. Furthermore, factory prefabrication of components reduces on-site processing and shortens the construction period; the curved edge panels and expansion joint structure flexibly adapt to building boundaries, expanding application scenarios. Attached Figure Description

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the horizontal cross-section structure of the multi-arc decorative curtain wall system applicable to complex curved surfaces according to the present invention.

[0030] Figure 2 This is a schematic diagram of the vertical cross-section structure of the multi-arc decorative curtain wall system applicable to complex curved surfaces according to the present invention.

[0031] Figure 3 This is a schematic diagram of the horizontal cross-sectional structure of the double-arc plate in this invention.

[0032] Figure 4 This is a schematic diagram of the expansion joint structure in this invention.

[0033] Figure 5 This is a schematic diagram of the connection structure between the multi-arc decorative panel and the keel frame in this invention.

[0034] Figure 6 This is a schematic diagram of the connection structure between the vertically adjacent inner side plates and the keel frame in this invention.

[0035] Figure 7 This is a schematic diagram of the connection structure between the horizontally adjacent inner side plates and the keel frame in this invention.

[0036] Figure 8 This is a structural schematic diagram of the exterior finishing component in this invention.

[0037] Reference numerals in the attached diagram: 1 – Supporting keel system; 1.1 – Keel frame; 1.1.1 – Vertical keel; 1.1.2 – Horizontal keel; 1.2 – Inner side plate; 1.3 – Outer side plate; 1.4 – Horizontal hanging rod; 1.5 – Horizontal hanging plate; 1.6 – Horizontal hanging groove; 1.7 – Vertical hanging rod; 2 – Multi-arc decorative panel; 2.1 – Double-arc panel; 2.1.1 – Arc panel; 2.1.2 – Stiffening plate; 2.2 – Insert core; 3 – Floor slab; 4 – Connecting plate assembly; 4.1 – Upper horizontal plate; 4.2 – Lower horizontal plate; 4.3 – Adapter plate; 4.4 – Clamping plate; 4.5 – Tie bolt; 4.6 – Connecting bolt; 5 – First insulation. 6 - Layer, 6 - Connecting component, 6.1 - Fixing plate, 6.2 - Horizontal bar, 6.3 - Vertical bar, 7 - Edge curved panel, 8 - U-shaped groove plate, 9 - Connecting plate, 10 - Insert plate, 11 - Cavity, 12 - Fireproof rock wool, 13 - Sealing plate, 14 - Joint plate, 15 - Elastic strip, 16 - Interior panel, 17 - Exterior trim component, 17.1 - Exterior panel section, 17.2 - Side panel section, 17.3 - Folded plate section, 18 - Second insulation layer, 19 - Pressure plate, 20 - Slot, 21 - Clip strip, 22 - Inner mounting plate, 23 - Inner bolt, 24 - Outer mounting plate, 25 - Outer bolt, 26 - Vertical hanging plate, 28 - Glass curtain wall. Detailed Implementation

[0038] like Figure 1-8As shown, this multi-arc decorative curtain wall system suitable for complex curved surfaces includes a supporting keel system 1 and multi-arc decorative panels 2; the supporting keel system 1 is located on the outside of the main structure and is connected to the floor slab 3 of the main structure through connecting plate group 4; a first insulation layer 5 is filled inside the supporting keel system 1; the multi-arc decorative panels 2 are located on the outside of the supporting keel system 1 and are connected to the supporting keel system 1 through connecting components 6; the horizontal cross-section of the multi-arc decorative panels 2 is a multi-segment continuously arranged arc shape, and the arc grooves of the arc lines are all set outwards; the multi-arc decorative panels 2 include double arc panels 2.1; there are multiple sets of double arc panels 2.1, and the multiple sets of double arc panels 2.1 are arranged vertically; each set of double arc panels 2.1 is spliced ​​and connected in the horizontal direction; a U-shaped groove plate 8 is provided on the inner side of the double arc panel 2.1 near one vertical edge; the multi-arc decorative panels 2.1 include double arc panels 2.1 ...; the multi-arc The horizontal cross-section of the U-shaped groove plate 8 is a horizontal U-shape, and the groove opening of the U-shaped groove plate 8 faces the corresponding side edge horizontally; a connecting plate 9 is provided along the vertical length of the other side of the double arc plate 2.1; the connecting plate 9 is connected to the connecting assembly 6, and an insert plate 10 is provided on the connecting plate 9 at the corresponding position of the U-shaped groove plate 8; the insert plates 10 on adjacent double arc plates 2.1 are inserted and connected to the U-shaped groove plate 8; the double arc plate 2.1 consists of two arc plate units 2.1. The two arc-shaped plate units 2.1.1 are connected horizontally, and the arc grooves of the two arc-shaped plate units 2.1.1 are both set to the outward; a stiffening plate 2.1.2 is provided inside the connecting seam of the two arc-shaped plate units 2.1.1; the stiffening plate 2.1.2 is a folded plate, and the stiffening plate 2.1.2 and the two arc-shaped plate units 2.1.1 form a cavity 11 with a horizontal cross-section that is rhomboid; the vertically adjacent double arc-shaped plates 2.1 are connected by inserts 2.2 inserted into the cavity 11.

[0039] In this embodiment, the supporting keel system 1 includes a keel frame 1.1, an inner side plate 1.2, and an outer side plate 1.3; the keel frame 1.1 includes vertical keels 1.1.1 and horizontal keels 1.1.2; each of the vertical keels 1.1.1 and the horizontal keels 1.1.2 is provided in a set, and the set of vertical keels 1.1.1 and the set of horizontal keels 1.1.2 together form a rectangular frame structure; both the vertical keels 1.1.1 and the horizontal keels 1.1.2 are made of rectangular steel pipes. The keel frame 1.1 is constructed as follows: horizontal hanging rods 1.4 are spaced apart on the inner side of the keel frame 1.1, and horizontal hanging grooves 1.6 are provided on the horizontal hanging rods 1.4; the inner side plate 1.2 and the outer side plate 1.3 are respectively provided on the inner and outer sides of the keel frame 1.1; a horizontal hanging plate 1.5 is provided on the side of the inner side plate 1.2 near the keel frame 1.1; the horizontal hanging plate 1.5 is hooked and connected to the horizontal hanging groove 1.6; the outer side plate 1.3 is composed of a set of outer side plates spliced ​​together; the outer side plate 1.3 is connected to the vertical keel 1.1.1 at the corresponding vertical keel 1.1.1 by fastening nails.

[0040] In this embodiment, the inner side panel 1.2 is made of 2mm thick imitation UHPC aluminum single panel, and the outer side panel 1.3 is a 2mm thick aluminum single panel; the horizontal hanging rod 1.4 is set at the joint of vertically adjacent imitation UHPC aluminum single panels, and the longitudinal section of the horizontal hanging rod 1.4 is U-shaped; the outer side panel of the horizontal hanging rod 1.4 is connected to the keel frame 1.1, and the top of the inner side panel of the horizontal hanging rod 1.4 is provided with a horizontal folding plate, and the horizontal folding plate is connected to the top edge of the imitation UHPC aluminum single panel below the horizontal joint; the horizontal hanging plate 1.5 is connected to the bottom of the imitation UHPC aluminum single panel above the joint, and the longitudinal section of the horizontal hanging plate 1.5 is inverted L-shaped, the vertical side of the horizontal hanging plate 1.5 is inserted into the horizontal hanging groove 1.6, and the horizontal side of the horizontal hanging plate 1.5 is connected to the bottom of the imitation UHPC aluminum single panel above the joint. Horizontally adjacent imitation UHPC aluminum panels are connected by vertical hanging rods 1.7 and vertical hanging plates 26. A vertical hanging rod 1.7 is installed on one side of the inner panel 1.2, near the keel frame. The horizontal cross-section of the vertical hanging rod 1.7 is a horizontal U-shape, with the U-shaped groove facing the vertical joint of the horizontally adjacent imitation UHPC aluminum panel. The outer side of the vertical hanging rod 1.7 is connected to the keel frame 1.1, and a longitudinal folding plate is installed at the end of the inner side of the vertical hanging rod 1.7, connecting to the imitation UHPC aluminum panel. A vertical hanging plate 26 is installed on the inner panel 1.2 on the other side of the vertical joint, located on one side of the U-shaped groove of the vertical hanging rod 1.7. The horizontal cross-section of the vertical hanging plate 26 is L-shaped, with its longitudinal edge connected to the inner panel 1.2, and its transverse edge inserted into the U-shaped groove of the vertical hanging rod 1.7.

[0041] In this embodiment, the horizontal hanging rod 1.4 is arranged along the transverse axis of the horizontal keel 1.1.2, and the horizontal hanging rod 1.4 is connected to the keel frame 1.1 by screws.

[0042] In this embodiment, the connecting component 6 is disposed on the keel frame 1.1, at the joint of the adjacent double arc-shaped plate 2.1, or at the position of the two vertical sides of the multi-arc decorative plate 2; the connecting component 6 includes a fixing plate 6.1 and a horizontal bar 6.2; the fixing plate 6.1 is connected to the keel frame 1.1; the horizontal bar 6.2 is connected to the outside of the fixing plate 6.1, and the horizontal bar 6.2 is connected to the connecting plate 9.

[0043] In this embodiment, a vertical rod 6.3 is provided at the end of the horizontal rod 6.2; the connecting plate 9 is connected to the vertical rod 6.3 by screws.

[0044] In this embodiment, glass curtain walls 28 are respectively provided on both sides of the multi-arc decorative curtain wall system suitable for complex curved surfaces; an expansion joint structure is provided between the multi-arc decorative curtain wall system suitable for complex curved surfaces and one side of the glass curtain wall 28; vertical keels 1.1.1 are respectively provided on both sides of the multi-arc decorative curtain wall system suitable for complex curved surfaces; when the connecting component 6 is connected to the vertical keel 1.1.1, the connecting plate 9 is connected to the horizontal bar 6.2; when the connecting component 6 is connected to the horizontal keel 1.1.2, a vertical bar 6.3 is connected to the outer end of a set of vertically corresponding horizontal bars 6.2; the connecting plate 9 is connected to the vertical bar 6.3. The outer end of the horizontal bar 6.2 protrudes from the outer side plate 1.3.

[0045] In this embodiment, the outer side plate 1.3 is composed of a set of outer side panels spliced ​​together; the outer side plate 1.3 is connected to the vertical keel 1.1.1 at the corresponding vertical keel 1.1.1 by fastening nails.

[0046] In this embodiment, an expansion joint structure is also included; the expansion joint structure is set between the multi-arc decorative curtain wall system suitable for complex curved surfaces and the adjacent structure; the vertical keel 1.1.1 is respectively set on both sides of the expansion joint structure; the expansion joint structure includes a joint plate 14, an elastic strip 15, an interior panel 16, and an exterior surface component 17; there are two joint plates 14, arranged longitudinally at intervals, and the horizontal cross-section of the two joint plates 14 is arc-shaped, and the arc grooves of the joint plates 14 are arranged opposite to each other; a second insulation layer 18 is filled in the space between the two joint plates 14; both ends of each joint plate 14 are fixed to the corresponding vertical keel 1.1.1 by a pressure plate 19, and a slot 20 is provided on the side of the pressure plate 19 near the expansion joint; there are two sets of elastic strips 15, respectively set on the inner and outer sides of the two joint plates 14; a retaining strip 21 is provided at both ends of the elastic strip 15; The clip 21 is inserted into the slot 20; the exterior trim component 17 is disposed on the outside of the expansion joint, and the exterior trim component 17 is connected to the outer elastic strip 15 through the outer mounting plate 24 and the outer bolt 25; the interior panel 16 is disposed on the inside of the expansion joint, and the interior panel 16 is connected to the inner elastic strip 15 through the inner mounting plate 22 and the inner bolt 23; the exterior trim component 17 includes an outer panel segment 17.1 and a side panel segment 17.2; the horizontal cross-section of the outer panel segment 17.1 is a multi-segment continuously arranged arc shape adapted to the multi-arc decorative panel 2; the inner ends of the side panel segments 17.2 are bent to form folded plate segments 17.3; the two ends of the outer mounting plate 24 are respectively pressed onto the folded plate segments 17.3 on both sides; there is a set of outer bolts 25, which are vertically spaced between the outer mounting plate 24 and the corresponding elastic strip 15 to connect the outer mounting plate 24 and the elastic strip 15.

[0047] In this embodiment, the connecting plate assembly 4 includes an upper horizontal plate 4.1, a lower horizontal plate 4.2, a transition plate 4.3, and a clamping plate 4.4. The upper horizontal plate 4.1 and the lower horizontal plate 4.2 are respectively disposed along the edge of the floor slab 3 at the top and bottom of the floor slab 3, and the upper horizontal plate 4.1 and the lower horizontal plate 4.2 are connected by tie bolts 4.5 passing through the floor slab 3. The transition plate 4.3 is attached to the outer surface of the floor slab 3, and the transition plate 4.3 is welded to the outer surfaces of the upper horizontal plate 4.1 and the lower horizontal plate 4.2. There are two clamping plates 4.4, which are longitudinally spaced and connected to the outer surface of the transition plate 4.3. The upper part is clamped by two clamping plates 4.4 on both sides of the vertical keel 1.1.1 at the corresponding position; the clamping plates 4.4 are connected to the vertical keel 1.1.1 by connecting bolts 4.6; fireproof rock wool 12 is provided inside the keel frame 1.1 at the position corresponding to the floor slab 3, and the inner side of the fireproof rock wool 12 is attached to the floor slab 3; the inner side plate 1.2 is broken at the fireproof rock wool 12, and sealing plates 13 are respectively provided at the top and bottom of the fireproof rock wool 12 in the gap between the inner side plate 1.2 and the floor slab 3; the upper sealing plate 13 overlaps with the upper horizontal plate 4.1, and the lower sealing plate 13 overlaps with the lower horizontal plate 4.2.

[0048] In this embodiment, the U-shaped groove plate 8 is long and extends vertically; the connecting plate 9 is L-shaped, and one side of the connecting plate 9 is connected to the connecting assembly 6 by screws, while the other end of the connecting plate 9 is connected to the double arc plate 2.1; the insert plate 10 is long and is connected to the connecting plate 9, near the vertical side of the double arc plate 2.1, and is inserted into the U-shaped groove plate 8.

[0049] In this embodiment, a curved edge panel 7 is provided on one or both sides of the multi-arc decorative panel 2, which is suitable for a multi-arc decorative curtain wall system with complex curved surface shapes; one side of the curved edge panel 7 is connected to the multi-arc decorative panel 2, and the other side of the curved edge panel 7 is connected to the keel frame 1.1 through the connecting component 6.

[0050] The construction method for this multi-arc decorative curtain wall system, which is suitable for complex curved surfaces, includes the following steps.

[0051] Step 1: Use 3D laser scanning technology to obtain the spatial coordinates of the main structure, such as the edges of floor slabs and the location of structural columns, and establish a BIM model of the curtain wall system.

[0052] Step 2: Determine the framework of the supporting keel system through simulation analysis, including the positioning parameters of the vertical and horizontal keels, and optimize the splicing scheme of the double arc plate, with the error controlled within ±1.5mm.

[0053] Step 3: Prefabricate the components of the supporting keel system 1 in the factory;

[0054] Keel frame: steel-aluminum composite vertical keel with pre-welded horizontal hanging grooves;

[0055] Connecting plate assembly 4: The upper / lower horizontal plates, adapter plates, clamping plates and other components are CNC cut to ensure the accuracy of the tie bolt hole positions;

[0056] Double arc plate: Corrugated aluminum plate, thickness ≥3mm, formed by CNC bending, pre-installed with U-shaped channel plate, insert plate and stiffening plate, and pre-embedded core in the cavity.

[0057] Step 4, Installation of the supporting keel system 1: Connect the supporting keel system 1 to the floor slab 3 of the main structure through the connecting plate assembly 4.

[0058] The specific steps include:

[0059] Step 1, Construction of connecting plate assembly 4:

[0060] Install the upper horizontal plate 4.1 and the lower horizontal plate 4.2 along the edge of the floor slab 3. Fix the tie bolts 4.5 through the floor slab 3. After the transition plate 4.3 is welded to the horizontal plate, the clamping plate 4.4 clamps the vertical keel with the connecting bolts 4.6. Fireproof rock wool 12 with a thickness of ≥200mm is filled between the keel frame 1.1 and the floor slab 3. The top and bottom sealing plates overlap the horizontal plate to form a continuous fireproof partition.

[0061] Step 2, Assembling the keel frame:

[0062] The vertical and horizontal keels form a rectangular frame through connectors. The verticality is calibrated using a laser total station, with a deviation of ≤2mm.

[0063] The horizontal hanging rods 1.4 are installed at a spacing of ≤1.2m. The inner side plate 1.2 is connected to the hanging groove through the horizontal hanging plate, and the outer side plate 1.3 is fixed to the vertical keel 1.1.1 with fastening nails.

[0064] Step 3: Connect the supporting keel system 1 to the floor slab 3 of the main structure via the connecting plate assembly 4.

[0065] Step 5, Installation of the multi-arc decorative panel 2: Connect the connecting plate 9 of the double-arc panel 2.1 to the connecting component 6, and insert the insert plate 10 into the U-shaped groove of the adjacent double-arc panel 2.1 to form a continuous horizontal arc. Install them sequentially until the last double-arc panel 2.1 is completed. The connecting component 6 is fixed to the horizontal bar 6.2 on the keel frame 1.1 with anti-loosening screws;

[0066] When the edge-curved panel 7 is provided, the edge-curved panel 7 transitions to the main structure or adjacent curtain wall through L-shaped connectors, and the joint is filled with EPDM rubber strips.

[0067] In this embodiment, when an expansion joint structure is set between a multi-arc decorative curtain wall system suitable for complex curved surfaces and an adjacent structure, the construction of the expansion joint structure is also included after step five, specifically including the following steps.

[0068] Step 1, joint board 14 installation: two curved joint boards with their curved grooves facing away from each other are fixed to the vertical keel 1.1.1 by pressure plate 19.

[0069] Step 2: Fill the gap between the two curved joint boards with the second insulation layer 18.

[0070] Step 3, assembly of the elastic strip: insert the retaining strips 21 at both ends of the elastic strip 15 into the retaining grooves 20 of the pressure plate 19.

[0071] Step 4: Connect the exterior trim component 17 to the outer elastic strip 15 via the outer mounting plate 24 and outer bolts 25, and connect the interior trim panel to the inner elastic strip 15 via the inner mounting plate 22 and inner bolts 23.

[0072] In this embodiment, the width of the expansion joint is 200mm~300mm.

[0073] In this embodiment, the structure adjacent to the multi-arc decorative curtain wall system suitable for complex curved surfaces is a curtain wall of other structural forms, such as a glass curtain wall, an aluminum panel curtain wall, or a stone curtain wall, or it is the main structure or the multi-arc decorative curtain wall system suitable for complex curved surfaces; the expansion joint structure is set between one side of the multi-arc decorative curtain wall system suitable for complex curved surfaces and the adjacent structure; the edge curved panel is set between the other side of the multi-arc decorative curtain wall system suitable for complex curved surfaces and the adjacent structure.

[0074] The above embodiments are not exhaustive examples of specific implementation methods, and other embodiments are also possible. The purpose of the above embodiments is to illustrate the present invention, rather than to limit the scope of protection of the present invention. All applications derived from simple variations of the present invention fall within the scope of protection of the present invention.

Claims

1. A multi-arc decorative curtain wall system suitable for complex curved surfaces, comprising a supporting keel system (1) and multi-arc decorative panels (2); the supporting keel system (1) is disposed on the outside of the main structure and connected to the floor slab (3) of the main structure via connecting plate groups (4); a first insulation layer (5) is filled within the supporting keel system (1); characterized in that: The multi-arc decorative panel (2) is disposed on the outside of the supporting keel system (1), and the multi-arc decorative panel (2) is connected to the supporting keel system (1) through the connecting component (6); the multi-arc decorative panel (2) includes a double-arc panel (2.1); there are multiple sets of double-arc panels (2.1), and the multiple sets of double-arc panels (2.1) are arranged vertically; each set of double-arc panels (2.1) is spliced ​​and connected in the horizontal direction; a U-shaped groove plate (8) is provided on the inner side of the double-arc panel (2.1) near one of the vertical edges; the horizontal cross-section of the U-shaped groove plate (8) is a horizontally placed U-shape, and the groove opening of the U-shaped groove plate (8) is horizontally oriented towards the corresponding side edge; a connecting plate (9) is provided along the vertical length of the other vertical edge of the double-arc panel (2.1); the connecting plate (9) is connected to the connecting component (6) Connection: A plug plate (10) is provided on the connecting plate (9) at the corresponding U-shaped groove plate (8); the plug plate (10) on the adjacent double arc plate (2.1) is plugged into the U-shaped groove plate (8); the double arc plate (2.1) is formed by connecting two arc plate units (2.1.1) in the horizontal direction, and the arc grooves of the two arc plate units (2.1.1) are all set to face outward; a stiffening plate (2.1.2) is provided on the inner side of the connecting seam of the two arc plate units (2.1.1); the stiffening plate (2.1.2) is a folded plate, and the stiffening plate (2.1.2) and the two arc plate units (2.1.1) form a cavity (11) with a horizontal cross-section that is rhomboid; the vertically adjacent double arc plates (2.1) are connected by a plug core (2.2) inserted in the cavity (11).

2. The multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 1, characterized in that: The supporting keel system (1) includes a keel frame (1.1), an inner side plate (1.2), and an outer side plate (1.3); the keel frame (1.1) includes vertical keels (1.1.1) and horizontal keels (1.1.2); each of the vertical keels (1.1.1) and the horizontal keels (1.1.2) is provided in a set, and the set of vertical keels (1.1.1) and the set of horizontal keels (1.1.2) together form a rectangular frame structure; horizontal hanging rods (1.4) are provided at intervals on the inner side of the keel frame (1.1), and horizontal hanging rods (1.4) are provided on the horizontal side. A horizontal hanging groove (1.6) is provided on the rod (1.4); the inner side plate (1.2) and the outer side plate (1.3) are respectively provided on the inner and outer sides of the keel frame (1.1); a horizontal hanging plate (1.5) is provided on the side of the inner side plate (1.2) close to the keel frame (1.1); the horizontal hanging plate (1.5) is connected to the horizontal hanging groove (1.6); the outer side plate (1.3) is spliced ​​from a set of outer side plates; the outer side plate (1.3) is connected to the vertical keel (1.1.1) at the corresponding vertical keel (1.1.1) by fastening nails.

3. The multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 2, characterized in that: The connecting plate assembly (4) includes an upper horizontal plate (4.1), a lower horizontal plate (4.2), a transition plate (4.3), and a clamping plate (4.4); the upper horizontal plate (4.1) and the lower horizontal plate (4.2) are respectively set along the edge of the floor slab (3) at the top and bottom of the floor slab (3), and the upper horizontal plate (4.1) and the lower horizontal plate (4.2) are connected by tie bolts (4.5) passing through the floor slab (3); the transition plate (4.3) is attached to the outer side of the floor slab (3), and the transition plate (4.3) is welded to the outer side of the upper horizontal plate (4.1) and the lower horizontal plate (4.2); there are two clamping plates (4.4). The two clamping plates (4.4) are connected longitudinally and spaced on the outer side of the transition plate (4.3), and clamping plates (4.4) are clamped on both sides of the vertical keel (1.1.1) at the corresponding positions; the clamping plates (4.4) are connected to the vertical keel (1.1.1) by connecting bolts (4.6); fireproof rock wool (12) is provided in the keel frame (1.1) at the position corresponding to the floor slab (3), and the inner side of the fireproof rock wool (12) is attached to the floor slab (3); the inner side plate (1.2) is broken at the fireproof rock wool (12), and sealing plates (13) are respectively provided at the top and bottom of the fireproof rock wool (12) in the gap between the inner side plate (1.2) and the floor slab (3).

4. The multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 2, characterized in that: It also includes an expansion joint structure; the expansion joint structure is set between the multi-arc decorative curtain wall system suitable for complex curved surfaces and the adjacent structure; the vertical keel (1.1.1) is respectively set on both sides of the expansion joint structure; the expansion joint structure includes a joint plate (14), an elastic strip (15), an interior panel (16) and an exterior surface component (17); there are two joint plates (14), arranged longitudinally at intervals, and the horizontal cross-section of the two joint plates (14) is arc-shaped, and the joint plate (14) of The arc-shaped grooves are arranged opposite each other; a second insulation layer (18) is filled in the space between the two joint boards (14); both ends of each joint board (14) are fixed to the vertical keel (1.1.1) on the corresponding side by pressure plates (19), and a slot (20) is provided on the side of the pressure plate (19) near the expansion joint; there are two sets of elastic strips (15), which are respectively set on the inner and outer sides of the two joint boards (14); a retaining strip (21) is provided at both ends of the elastic strip (15); the retaining strip (21) is locked in place. In the groove (20); the exterior trim component (17) is disposed on the outside of the expansion joint, and the exterior trim component (17) is connected to the outer elastic strip (15) via an outer mounting plate (24) and an outer bolt (25); the interior trim panel (16) is disposed on the inside of the expansion joint, and the interior trim panel (16) is connected to the inner elastic strip (15) via an inner mounting plate (22) and an inner bolt (23); the exterior trim component (17) includes an outer panel section (17.1) and a side panel section (17.2); The horizontal cross-section of the outer panel segment (17.1) is a multi-segment continuous arc shape adapted to the multi-arc decorative panel (2); the inner ends of the side panel segment (17.2) are bent to form folded plate segments (17.3); the two ends of the outer mounting plate (24) are respectively pressed onto the folded plate segments (17.3) on both sides; there is a set of outer bolts (25), which are vertically spaced between the outer mounting plate (24) and the elastic strip (15) on the corresponding side, connecting the outer mounting plate (24) and the elastic strip (15).

5. The multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 1, characterized in that: The U-shaped groove plate (8) is long and extends vertically; the connecting plate (9) is L-shaped, and one side of the connecting plate (9) is connected to the connecting assembly (6) by screws, and the other end of the connecting plate (9) is connected to the double arc plate (2.1); the insert plate (10) is long and is connected to the connecting plate (9) on the side of the vertical edge of the double arc plate (2.1), and the insert plate (10) is inserted into the U-shaped groove plate (8).

6. The multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 1, characterized in that: The connecting component (6) is set on the keel frame (1.1), at the joint of the adjacent double arc plate (2.1) or at the position of the two vertical sides of the multi-arc decorative plate (2); the connecting component (6) includes a fixing plate (6.1) and a horizontal bar (6.2); the fixing plate (6.1) is connected to the keel frame (1.1); the horizontal bar (6.2) is connected to the outside of the fixing plate (6.1) and is connected to the connecting plate (9).

7. The multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 6, characterized in that: The horizontal bar (6.2) has a vertical bar (6.3) at its end; the connecting plate (9) is connected to the vertical bar (6.3) by screws.

8. The multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 5, characterized in that: The multi-arc decorative panel (2) is provided with a curved edge panel (7) on one or both sides; the curved edge panel (7) is provided between the multi-arc decorative curtain wall system suitable for complex curved surface shapes and the adjacent structure.

9. A construction method for a multi-arc decorative curtain wall system suitable for complex curved surfaces, as described in any one of claims 1-8, characterized in that, The steps include the following: Step 1: Use 3D laser scanning technology to obtain the spatial coordinates of the main structure and establish a BIM model of the curtain wall system; Step 2: Determine the positioning parameters of the supporting keel system frame through simulation analysis, and optimize the splicing scheme of the double arc plate; Step 3: Prefabricate the components of the supporting keel system (1) in the factory; Step 4, Installation of the supporting keel system (1): Connect the supporting keel system (1) to the floor slab (3) of the main structure through the connecting plate assembly (4); Step 5, installation of multi-arc decorative panel (2): Connect the connecting plate (9) of the double arc panel (2.1) to the connecting component (6), and insert the insert plate (10) into the U-shaped groove of the adjacent double arc panel (2.1) to form a horizontal continuous arc. Install them in sequence until the last double arc panel (2.1) is spliced.

10. The construction method for a multi-arc decorative curtain wall system suitable for complex curved surfaces according to claim 9, characterized in that, It also includes the construction of expansion joint structures, specifically including the following steps: Step 1, joint board (14) installation: fix two curved joint boards to the vertical keel (1.1.1) by pressure plate (19). Step 2: Fill the gap between the two curved joint boards with the second insulation layer (18); Step 3, assembly of the elastic strip: insert the retaining strips (21) at both ends of the elastic strip (15) into the retaining grooves (20) of the pressure plate (19); Step 4: Connect the exterior trim component (17) to the outer elastic strip (15) via the outer mounting plate (24) and the outer bolt (25), and connect the interior trim panel to the inner elastic strip (15) via the inner mounting plate (22) and the inner bolt (23).

Images