Multi-arc-shaped decorative curtain wall system suitable for complex curved surface modeling and construction method of multi-arc-shaped decorative curtain wall system

Abstract

The multi-arc-shaped decorative curtain wall system comprises a supporting keel system and a multi-arc-shaped decorative plate, supporting keels are connected with a main body structure through connecting plate sets, and the supporting keels are filled with heat preservation layers; the multi-arc-shaped decorative plate is formed by horizontally splicing double-arc-shaped plates, U-shaped groove plates are arranged on the inner sides of the double-arc-shaped plates and connected with the inserting plates in an inserted mode, and the double-arc-shaped plates are vertically connected with rhombic cavity inserting cores formed by the stiffening plates, so that multi-direction freedom degree adjustment is achieved. The supporting keel system adopts a hanging connection type inner side plate and a splicing outer side plate, an elastic expansion joint structure is combined, and the problems that a traditional curtain wall is poor in curved surface adaptability and joints are prone to water leakage are solved. And meanwhile, positioning and prefabrication are optimized through a BIM model in construction, and the installation precision is improved. The method has the complex curved surface modeling capacity, high waterproof performance and high construction efficiency, and is suitable for modern special-shaped building curtain wall engineering.

Description

Technical Field

[0001] The present invention relates to the technical field of building curtain walls, and in particular to a multi-arc decorative curtain wall system suitable for complex curved surface modeling and a construction method thereof. Background Art

[0002] Modern architecture is increasingly demanding complex curved surfaces, but traditional curtain wall systems, which mostly utilize flat or single-curved designs, struggle to adapt to the complex, multi-curved design requirements of modern architecture. Existing technologies often utilize customized unit panels, which present several challenges: curved unit panels require high machining precision and high production costs; rigid joints cannot effectively handle structural deformation caused by thermal expansion and contraction or wind loads, leading to cracking and poor deformation adaptability; and traditional joints rely on elastic sealing materials, which are prone to aging and failure, leading to potential leaks. The joint structure is also noticeably exposed, affecting the overall visual effect of the curtain wall and requiring high repair costs. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-arc decorative curtain wall system suitable for complex curved surface shapes, to solve the technical problems of the traditional system's lack of adaptability to complex multi-curved surface shapes, high processing cost and low construction efficiency of curved 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 solutions.

[0005] A multi-arc decorative curtain wall system suitable for complex curved surface modeling, comprising a supporting keel system and multi-arc decorative panels; the supporting keel system is arranged on the outside of the main structure and is connected to the floor slab of the main structure through a connecting plate group; a first thermal insulation layer is filled in the supporting keel system; the multi-arc decorative panels are arranged on the outside of the supporting keel system, and the multi-arc decorative panels are connected to the supporting keel system through a connecting assembly; the multi-arc decorative panels comprise double-arc panels; the double-arc panels are arranged in multiple groups, and the multiple groups of double-arc panels are arranged vertically; each group of double-arc panels are spliced ​​and connected in the horizontal direction; a U-shaped groove plate is provided on the inner side surface of the double-arc plate, near one vertical edge; the water level of the U-shaped groove plate The flat section is a horizontal U-shape, and the notch of the U-shaped groove plate is horizontally facing the corresponding side edge; a connecting plate is provided along the vertical length of the vertical side 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 and the corresponding U-shaped groove plate; the insert plates on the adjacent double-arc plates are plug-connected with the U-shaped groove plate; the double-arc plate is formed by two arc plate units connected in the horizontal direction, and the arc grooves of the two arc plate units are both facing outward; a stiffening plate is provided on the inner side of 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 enclose a cavity with a diamond-shaped horizontal section; vertically adjacent double-arc plates are connected by a plug core inserted in the cavity.

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

[0007] Preferably, the connecting plate group includes an upper horizontal plate, a lower horizontal plate, an adapter plate and a plywood; the upper horizontal plate and the lower horizontal plate are respectively arranged at the top and bottom of the floor slab along the edges of the floor slab, and the upper horizontal plate and the lower horizontal plate are connected by tension bolts passing through the floor slab; the adapter plate is attached to the outer side of the floor slab, and the adapter plate is welded to the outer side surfaces of the upper horizontal plate and the lower horizontal plate; there are two plywoods, which are connected to the outer side of the adapter plate at a longitudinal interval, and the two plywoods are clamped on both sides of the vertical keels at corresponding positions; the plywood is connected to the vertical keels by connecting bolts; fireproof rock wool is provided in the keel frame at the corresponding floor slab position, and the inner side of the fireproof rock wool is attached to the floor slab; the inner side plate is disconnected at the fireproof rock wool, and sealing plates are respectively provided in the gap between the inner plate and the floor slab, at the top and bottom of the fireproof rock wool.

[0008] Preferably, it also includes an expansion joint structure; the expansion joint structure is arranged between a multi-arc decorative curtain wall system suitable for complex curved surface modeling and an adjacent structure; the vertical keels are respectively arranged on both sides of the expansion joint structure; the expansion joint structure includes a joint plate, an elastic strip, an interior panel and an exterior facing component; the joint plates are arranged in two pieces, spaced apart in the longitudinal direction, and the horizontal cross-sections of the two joint plates are arc-shaped, and the arc grooves of the joint plates are arranged back to back; the space between the two joint plates is filled with a second insulation layer; both ends of each joint plate are fixed to the vertical keel on the corresponding side by a pressing plate, and a card slot is provided on the side of the pressing plate close to the expansion joint; the elastic strips are arranged in two groups, respectively on the inner and outer sides of the two joint plates; A card strip is separately provided; the card strip is stuck in the card slot; the outer decorative component is arranged on the outside of the expansion joint, and the outer decorative component is connected to the outer elastic strip through the outer mounting plate and the outer bolt; the interior panel is arranged on the inner side of the expansion joint, and the interior panel is connected to the inner elastic strip through the inner mounting plate and the inner bolt; the outer decorative component includes an outer panel section and a side panel section; the horizontal section of the outer panel section is a multi-section continuously arranged arc shape adapted to the multi-arc decorative panel; the inner ends of the side panel sections are respectively bent to form folded plate sections; the two ends of the outer mounting plate are respectively pressed onto the folded plate sections on both sides; there is a group of outer bolts, which are vertically spaced and passed through the outer mounting plate and the elastic strip on the corresponding side to connect the outer mounting plate with the elastic strip.

[0009] Preferably, the U-shaped trough plate is in the shape of a long strip and is arranged along the vertical length; the connecting plate is in the shape of an L, and one side of the connecting plate is connected to the connecting assembly by a screw, and the other end of the connecting plate is connected to the double-arc plate; the plug-in plate is in the shape of a long strip and is connected to the connecting plate, close to the side corresponding to the vertical side of the double-arc plate, and the plug-in plate is correspondingly inserted into the U-shaped trough plate.

[0010] Preferably, the connecting component is arranged on the keel frame, at the joints of adjacent double-arc panels or at the vertical sides of the multi-arc decorative panels; the connecting component includes a fixing plate and a horizontal rod; the fixing plate is connected to the keel frame; the horizontal rod is connected to the outside of the fixing plate, and the horizontal rod is connected to the connecting plate.

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

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

[0013] A construction method for a multi-arc decorative curtain wall system suitable for complex curved surface shapes 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 2: Determine the positioning parameters of the supporting keel system skeleton through simulation analysis and optimize the splicing scheme of the double-arc panels.

[0016] Step 3: Prefabricate the components of the supporting keel system in the factory.

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

[0018] Step 5. Installation of multi-arc decorative panels: Connect the connecting plate of the double-arc panel to the connecting assembly, and insert the plug-in plate into the U-shaped groove plate of the adjacent double-arc panel to form a horizontal continuous arc. Install them in sequence until the last double-arc panel is spliced. Preferably, the method further includes the construction of the expansion joint structure, which specifically includes the following steps.

[0019] Step 1, joint plate installation: fix the two curved joint plates to the vertical keel through the pressure plate.

[0020] Step 2: Fill the gap between the two curved joint plates with the second insulation layer.

[0021] Step 3, assembly of the elastic strip: insert the clips at both ends of the elastic strip into the clip slots of the pressure plate.

[0022] Step 4: Connect the exterior facing component to the outer elastic strip through the outer mounting plate and outer bolts, and connect the interior facing panel to the inner elastic strip through the inner mounting plate and inner bolts.

[0023] Compared with the prior art, the present invention has the following characteristics and beneficial effects.

[0024] 1. The double-arc panels of the present invention, which are suitable for multi-arc decorative curtain wall systems with complex curved surfaces, are horizontally spliced ​​with standardized arc units, combined with a U-shaped groove plate and a plug-in plate plug-in structure to reduce processing difficulty and cost; and the stiffening plate and diamond-shaped cavity design enhance local rigidity while allowing vertical plug-in connection to simplify the installation process.

[0025] 2. The horizontal connection between the U-shaped channel and the insert provides displacement margin, effectively relieving deformation stress caused by thermal expansion and contraction or load, and enhancing dynamic deformation adaptability. The flexible connection between the elastic strip and the slot in the expansion joint structure further absorbs deformation and prevents cracking. Furthermore, the joints of the present invention utilize a combination of multi-layer elastic strips and exterior decorative components for sealing, providing dual waterproofing and reducing the risk of leakage. The concealed joint design enhances the overall appearance and reduces maintenance costs.

[0026] 3. This invention boasts high structural stability and integrates multiple functions: The support keel system incorporates built-in insulation and fire-resistant rock wool, balancing energy conservation and fire resistance. BIM modeling and 3D scanning technologies ensure precise keel positioning and adaptability to complex curved surfaces. Furthermore, factory-prefabricated components reduce on-site processing and shorten construction time. Curved panels and expansion joints flexibly adapt to building boundaries, expanding application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the horizontal section structure of the multi-arc decorative curtain wall system suitable for complex curved surface modeling of the present invention.

[0029] Figure 2 It is a schematic diagram of the vertical section structure of the multi-arc decorative curtain wall system suitable for complex curved surface modeling of the present invention.

[0030] Figure 3 It is a schematic diagram of the horizontal cross-section structure of the double-arc plate in the present invention.

[0031] Figure 4 It is a structural schematic diagram of the expansion joint structure in the present invention.

[0032] Figure 5 It is a schematic diagram of the connection structure between the multi-arc decorative panel and the keel frame in the present invention.

[0033] Figure 6 It is a schematic diagram of the connection structure between the vertically adjacent inner side panels and the keel frame in the present invention.

[0034] Figure 7 It is a schematic diagram of the connection structure between the horizontally adjacent inner side panels and the keel frame in the present invention.

[0035] Figure 8It is a structural schematic diagram of the exterior facing component in the present invention.

[0036] Figure numbers: 1-support keel system, 1.1-keel frame, 1.1.1-vertical keel, 1.1.2-horizontal keel, 1.2-inner plate, 1.3-outer 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 plate, 2.1-double-arc plate, 2.1.1-arc plate, 2.1.2-stiffening plate, 2.2-insert core, 3-floor plate, 4-connecting plate group, 4.1-upper horizontal plate, 4.2-lower horizontal plate, 4.3-adapter plate, 4.4-plywood, 4.5-tension bolts, 4.6-connecting bolts, 5-first insulation board Layer, 6-connecting assembly, 6.1-fixed plate, 6.2-horizontal rod, 6.3-vertical rod, 7-edge curved panel, 8-U-shaped groove plate, 9-connecting plate, 10-insertion plate, 11-cavity, 12-fireproof rock wool, 13-sealing plate, 14-jointing plate, 15-elastic strip, 16-interior panel, 17-exterior finishing component, 17.1-exterior panel section, 17.2-side panel section, 17.3-folded plate section, 18-second insulation layer, 19-pressing plate, 20-slot, 21-strip, 22-interior mounting plate, 23-interior bolt, 24-exterior mounting plate, 25-exterior bolt, 26-vertical hanging plate, 28-glass curtain wall. DETAILED DESCRIPTION

[0037] like Figure 1-8As shown, this multi-arc decorative curtain wall system suitable for complex curved surface modeling includes a supporting keel system 1 and a multi-arc decorative panel 2; the supporting keel system 1 is arranged on the outside of the main structure, and is connected to the floor slab 3 of the main structure through a connecting plate group 4; the supporting keel system 1 is filled with a first thermal insulation layer 5; it is characterized in that: the multi-arc decorative panel 2 is arranged 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 a connecting component 6; the horizontal section of the multi-arc decorative panel 2 is in the shape of multiple continuously arranged arcs, and the arc grooves of the arc lines are all arranged outward; the multi-arc decorative panel 2 includes a double-arc panel 2.1; the double-arc panel 2.1 has multiple groups, and the multiple groups of double-arc panels 2.1 are arranged vertically; each group of double-arc panels 2.1 is spliced ​​and connected in the horizontal direction; a U-shaped groove panel 8 is provided on the inner side surface of the double-arc panel 2.1, close to one side vertical edge; the The horizontal section of the U-shaped groove plate 8 is a horizontal U-shape, and the notch of the U-shaped groove plate 8 is horizontally oriented toward the corresponding side edge; a connecting plate 9 is provided along the vertical length of the other vertical side of the double curved plate 2.1; the connecting plate 9 is connected to the connecting assembly 6, and a plug plate 10 is provided on the connecting plate 9 at the corresponding position of the U-shaped groove plate 8; the plug plates 10 on the adjacent double curved plates 2.1 are plugged and connected to the U-shaped groove plate 8; the double curved plate 2.1 is composed of two curved plate units 2.1 .1 are connected in the horizontal direction, and the arc grooves of the two arc plate units 2.1.1 are set toward the outside; a stiffening plate 2.1.2 is set on the inner side of the connection 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 diamond-shaped horizontal section; the vertically adjacent double arc plates 2.1 are connected by a core 2.2 inserted into the cavity 11.

[0038] In this embodiment, the support keel system 1 includes a keel frame 1.1, an inner plate 1.2 and an outer plate 1.3; the keel frame 1.1 includes a vertical keel 1.1.1 and a horizontal keel 1.1.2; the vertical keel 1.1.1 and the horizontal keel 1.1.2 are respectively provided in a group, and a group of vertical keels 1.1.1 and a group of horizontal keels 1.1.2 together form a rectangular frame structure; the vertical keels 1.1.1 and the horizontal keels 1.1.2 are both made of rectangular steel pipes; the vertical keels 1.1.1 and the horizontal keels 1.1.2 are both made of rectangular steel pipes. The keel frame 1.1 is made of; horizontal hanging rods 1.4 are arranged at intervals on the inner side surface, and horizontal hanging grooves 1.6 are provided on the horizontal hanging rods 1.4; the inner panels 1.2 and the outer panels 1.3 are respectively arranged on the inner and outer sides of the keel frame 1.1; the inner panel 1.2 is provided with a horizontal hanging plate 1.5 on the side close to the keel frame 1.1; the horizontal hanging plate 1.5 is hung and connected with the horizontal hanging groove 1.6; the outer panel 1.3 is spliced ​​by a group of outer panels; the outer panel 1.3 is connected to the vertical keel 1.1.1 at the corresponding vertical keel 1.1.1 by fastening nails.

[0039] In this embodiment, the inner panel 1.2 is composed of 2 mm thick imitation UHPC aluminum veneer panels, and the outer panel 1.3 is a 2 mm thick aluminum veneer panel; the horizontal hanging rod 1.4 is arranged at the joint of vertically adjacent imitation UHPC aluminum veneers, and the longitudinal section of the horizontal hanging rod 1.4 is U-shaped; the outer panel of the horizontal hanging rod 1.4 is connected to the keel frame 1.1, and a horizontal folding plate is provided on the top of the inner panel of the horizontal hanging rod 1.4, and the horizontal folding plate is connected to the top edge of the imitation UHPC aluminum veneer on the lower side of the horizontal joint; the horizontal hanging plate 1.5 is connected to the bottom of the imitation UHPC aluminum veneer on the upper side of the joint, and the longitudinal section of the horizontal hanging plate 1.5 is an inverted L-shape, 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 veneer on the upper side of the joint. Horizontally adjacent imitation UHPC aluminum veneers are connected by vertical hanging rods 1.7 and vertical hanging plates 26; a vertical hanging rod 1.7 is provided at one side edge of the inner panel 1.2, close to the keel frame; the horizontal section of the vertical hanging rod 1.7 is a horizontal U-shape, and the U-shaped groove faces the vertical seam side of the horizontally adjacent imitation UHPC aluminum veneer; the outer panel of the vertical hanging rod 1.7 is connected to the keel frame 1.1, and the inner panel end of the vertical hanging rod 1.7 is provided with a longitudinal folding plate, and the longitudinal folding plate is connected to the imitation UHPC aluminum veneer; on the inner panel 1.2 on the other side of the vertical seam, a vertical hanging plate 26 is provided on one side of the U-shaped notch of the vertical hanging rod 1.7; the horizontal section of the vertical hanging plate 26 is L-shaped, and the longitudinal edge of the vertical hanging plate 26 is connected to the inner panel 1.2, and the horizontal edge of the vertical hanging plate 26 is inserted into the U-shaped groove of the vertical hanging rod 1.7.

[0040] 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.

[0041] In this embodiment, the connecting component 6 is arranged on the keel frame 1.1, corresponding to the joints of adjacent double-arc panels 2.1 or the vertical sides of the multi-arc decorative panels 2; the connecting component 6 includes a fixing plate 6.1 and a horizontal rod 6.2; the fixing plate 6.1 is connected to the keel frame 1.1; the horizontal rod 6.2 is connected to the outside of the fixing plate 6.1, and the horizontal rod 6.2 is connected to the connecting plate 9.

[0042] 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.

[0043] In this embodiment, glass curtain walls 28 are provided on both sides of the multi-curved decorative curtain wall system suitable for complex curved surfaces. An expansion joint structure is provided between the multi-curved decorative curtain wall system suitable for complex curved surfaces and the glass curtain wall 28 on one side. Vertical purlins 1.1.1 are provided on both sides of the multi-curved decorative curtain wall system suitable for complex curved surfaces. When the connecting assembly 6 is connected to the vertical purlins 1.1.1, the connecting plate 9 is connected to the horizontal rods 6.2. When the connecting assembly 6 is connected to the horizontal purlins 1.1.2, vertical rods 6.3 are connected to the outer ends of a pair of vertically corresponding horizontal rods 6.2. The connecting plate 9 is connected to the vertical rods 6.3. The outer ends of the horizontal rods 6.2 extend through the outer plate 1.3.

[0044] In this embodiment, the outer panel 1.3 is formed by splicing a group of outer panels; the outer panel 1.3 is connected to the vertical keel 1.1.1 by fastening nails at the corresponding vertical keel 1.1.1.

[0045] In this embodiment, an expansion joint structure is also included; the expansion joint structure is arranged between a multi-arc decorative curtain wall system suitable for complex curved surface modeling and an adjacent structure; the vertical purlins 1.1.1 are respectively arranged 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 decorative component 17; there are two joint plates 14, which are arranged at intervals along the longitudinal direction, and the horizontal cross-sections of the two joint plates 14 are arc-shaped, and the arc grooves of the joint plates 14 are arranged back to back; the space between the two joint plates 14 is filled with a second insulation layer 18; both ends of each joint plate 14 are fixed to the vertical purlin 1.1.1 on the corresponding side by a pressing plate 19, and a card slot 20 is provided on the side of the pressing plate 19 close to the expansion joint; there are two groups of elastic strips 15, which are respectively arranged on the inner and outer sides of the two joint plates 14; card strips 21 are respectively provided at both ends of the elastic strip 15; the The card strip 21 is stuck in the card slot 20; the outer decorative component 17 is arranged on the outside of the expansion joint, and the outer decorative 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 arranged on the inner side 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 outer decorative component 17 includes an outer panel section 17.1 and a side panel section 17.2; the horizontal section of the outer panel section 17.1 is a multi-section continuously arranged arc shape adapted to the multi-arc decorative panel 2; the inner ends of the side panel sections 17.2 are respectively bent to form folded plate sections 17.3; the two ends of the outer mounting plate 24 are respectively pressed onto the folded plate sections 17.3 on both sides; there is a group of outer bolts 25, which are vertically spaced and penetrate between the outer mounting plate 24 and the elastic strip 15 on the corresponding side to connect the outer mounting plate 24 with the elastic strip 15.

[0046] In this embodiment, the connecting plate group 4 includes an upper horizontal plate 4.1, a lower horizontal plate 4.2, an adapter plate 4.3 and a plywood 4.4; the upper horizontal plate 4.1 and the lower horizontal plate 4.2 are respectively arranged at the top and bottom of the floor slab 3 along the edge of the floor slab 3, and the upper horizontal plate 4.1 and the lower horizontal plate 4.2 are connected by tension bolts 4.5 penetrated in the floor slab 3; the adapter plate 4.3 is attached to the outer surface of the floor slab 3, and the adapter plate 4.3 is welded to the outer side surfaces of the upper horizontal plate 4.1 and the lower horizontal plate 4.2; the plywood 4.4 has two pieces, which are connected to the outer side surfaces of the adapter plate 4.3 at intervals in the longitudinal direction On the top, two plywood plates 4.4 are clamped on both sides of the vertical keel 1.1.1 at corresponding positions; the plywood plates 4.4 are connected to the vertical keel 1.1.1 by connecting bolts 4.6; fireproof rock wool 12 is arranged 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 plate 1.2 is disconnected at the fireproof rock wool 12, and blocking plates 13 are respectively arranged in the gap between the inner plate 1.2 and the floor slab 3, at the top and bottom of the fireproof rock wool 12; the upper blocking plate 13 is overlapped with the upper horizontal plate 4.1, and the lower blocking plate 13 is overlapped with the lower horizontal plate 4.2.

[0047] In this embodiment, the U-shaped groove plate 8 is long and is arranged along the vertical length; the connecting plate 9 is L-shaped, and one side of the connecting plate 9 is connected to the connecting component 6 by screws, and the other end of the connecting plate 9 is connected to the double-arc plate 2.1; the plug-in plate 10 is long and connected to the connecting plate 9, close to the side corresponding to the vertical side of the double-arc plate 2.1, and the plug-in plate 10 is correspondingly inserted into the U-shaped groove plate 8.

[0048] In this embodiment, a curved edge panel 7 is provided on one or both sides of a multi-arc decorative panel 2 of a multi-arc decorative curtain wall system suitable for 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.

[0049] The construction method of the multi-arc decorative curtain wall system applicable to complex curved surface shapes includes the following steps.

[0050] Step 1: Use 3D laser scanning technology to obtain the spatial coordinates of the main structure, such as the edge of the floor and the position of the structural columns, and establish a BIM model of the curtain wall system.

[0051] Step 2: Determine the support keel system skeleton through simulation analysis, including the positioning parameters of the vertical keel and horizontal keel, and optimize the splicing scheme of the double-arc plate, with the error controlled within ±1.5mm.

[0052] Step 3: Prefabricate the components of the support keel system 1 in the factory; Keel frame: steel-aluminum composite vertical keel with pre-welded horizontal hanging grooves; Connecting plate group 4: upper / lower horizontal plates, adapter plates, splints and other components are CNC-cut to ensure the accuracy of the tension bolt holes; Double-arc plate: corrugated aluminum plate, thickness ≥3mm, formed by CNC bending, pre-installed with U-shaped groove plate, plug-in plate and stiffening plate, and pre-embedded core in the cavity.

[0053] Step 4: Installation of the support keel system 1: Connect the support keel system 1 to the floor slab 3 of the main structure through the connecting plate group 4.

[0054] The specific steps include: Step 1, construction of connecting plate group 4: Install upper and lower horizontal plates 4.1 and 4.2 along the edge of floor slab 3. Tension bolts 4.5 penetrate floor slab 3 to secure. After adapter plates 4.3 are welded to the horizontal plates, clamping plates 4.4 clamp the vertical keels with connecting bolts 4.6. Fireproof rock wool 12 (≥ 200mm thick) is filled between the keel frame 1.1 and floor slab 3. Top and bottom blocking plates overlap the horizontal plates to form a continuous fireproof partition. Step 2, assembly of the keel frame: The vertical keels and horizontal keels are connected to form a rectangular frame. The verticality is calibrated by a laser total station with a deviation of ≤2mm. The horizontal hanging rods 1.4 are installed at intervals of ≤1.2m. The inner panels 1.2 are connected to the hanging grooves through the horizontal hanging plates. The outer panels 1.3 are fixed to the vertical purlins 1.1.1 through fastening nails.

[0055] Step 3: Connect the supporting keel system 1 to the floor slab 3 of the main structure through the connecting plate group 4.

[0056] Step 5: Install the multi-curved decorative panels 2: Connect the connecting plate 9 of the double-curved panel 2.1 to the connecting assembly 6, and insert the insert plate 10 into the U-shaped groove of the adjacent double-curved panel 2.1 to form a horizontal continuous arc. Install them in sequence until the last double-curved panel 2.1 is connected. Secure the connecting assembly 6 to the horizontal rod 6.2 on the keel frame 1.1 with anti-loosening screws. When a curved panel 7 with edge treatment is provided, the curved panel 7 is transitioned to the main structure or the adjacent curtain wall through an L-shaped connector, and the joint is filled with EPDM strips.

[0057] In this embodiment, when an expansion joint structure is set between a multi-arc decorative curtain wall system suitable for complex curved surface shapes and an adjacent structure, the construction of the expansion joint structure is also included after completing step five, which specifically includes the following steps.

[0058] Step 1, installation of joint plate 14: fix two arc-shaped joint plates with their arc grooves facing each other to the vertical keel 1.1.1 through the pressing plate 19.

[0059] Step 2: Fill the gap between the two arc-shaped joint plates with the second insulation layer 18.

[0060] Step 3, assembling the elastic strip: insert the clips 21 at both ends of the elastic strip 15 into the clip slots 20 of the pressing plate 19 .

[0061] Step 4: Connect the exterior facing component 17 to the outer elastic strip 15 through the outer mounting plate 24 and the outer bolts 25 , and connect the interior trim panel to the inner elastic strip 15 through the inner mounting plate 22 and the inner bolts 23 .

[0062] In this embodiment, the width of the expansion joint is 200 mm to 300 mm.

[0063] In this embodiment, the structure adjacent to the multi-arc decorative curtain wall system suitable for complex curved surface modeling is a curtain wall of other structural forms, such as a glass curtain wall, an aluminum plate curtain wall, or a stone curtain wall, or a main structure or a multi-arc decorative curtain wall system suitable for complex curved surface modeling; the expansion joint structure is arranged between one side of the multi-arc decorative curtain wall system suitable for complex curved surface modeling and the adjacent structure; the side curved panel is arranged between the other side of the multi-arc decorative curtain wall system suitable for complex curved surface modeling and the adjacent structure.

[0064] The above embodiments are not exhaustive of specific implementation methods, and there may be other embodiments. The above embodiments are intended 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 surface shapes, comprising a supporting keel system (1) and multi-arc decorative panels (2); the supporting keel system (1) is arranged outside a main structure and connected to a floor slab (3) of the main structure via a connecting plate group (4); a first thermal insulation layer (5) is filled in the supporting keel system (1); and the characteristics are: The multi-arc decorative panel (2) is arranged 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 a connecting assembly (6); the multi-arc decorative panel (2) includes a double-arc panel (2.1); the double-arc panels (2.1) are provided in multiple groups, and the multiple groups of double-arc panels (2.1) are arranged vertically; each group 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 surface of the double-arc panel (2.1) near one vertical edge; the horizontal section of the U-shaped groove plate (8) is in a horizontal U shape, and the notch of the U-shaped groove plate (8) is horizontally oriented toward the corresponding side edge; a connecting plate (9) is provided on the other vertical edge of the double-arc panel (2.1) along the vertical length; the connecting plate (9) and the connecting assembly (6) connection, a plug plate (10) is provided on the connecting plate (9) at a position corresponding to the U-shaped groove plate (8); the plug plates (10) on adjacent double arc plates (2.1) are plug-connected with the U-shaped groove plate (8); the double arc plate (2.1) is formed by connecting two arc plate units (2.1.1) in a horizontal direction, and the arc grooves of the two arc plate units (2.1.1) are both arranged toward the outside; a stiffening plate (2.1.2) is provided on the inner side of the connection 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) enclose a cavity (11) having a diamond-shaped horizontal section; vertically adjacent double arc plates (2.1) are connected by a plug core (2.2) inserted into 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) comprises a keel frame (1.1), an inner side plate (1.2) and an outer side plate (1.3); the keel frame (1.1) comprises a vertical keel (1.1.1) and a horizontal keel (1.1.2); a group of the vertical keels (1.1.1) and the horizontal keels (1.1.2) are respectively provided, and a group of vertical keels (1.1.1) and a group of horizontal keels (1.1.2) together form a rectangular frame structure; horizontal hanging rods (1.4) are arranged at intervals on the inner side surface of the keel frame (1.1), and the horizontal hanging rods (1.4) are arranged at intervals on the inner side surface of the keel frame (1.1). A horizontal hanging groove (1.6) is provided on the rod (1.4); the inner plate (1.2) and the outer 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 plate (1.2) close to the keel frame (1.1); the horizontal hanging plate (1.5) is hooked and connected to the horizontal hanging groove (1.6); the outer plate (1.3) is formed by splicing a group of outer plates; the outer plate (1.3) is connected to the vertical keel (1.1.1) at the corresponding vertical keel (1.1.1) through 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 group (4) comprises an upper horizontal plate (4.1), a lower horizontal plate (4.2), an adapter plate (4.3) and a splint (4.4); the upper horizontal plate (4.1) and the lower horizontal plate (4.2) are respectively arranged at the top and bottom of the floor slab (3) along the edge of the floor slab (3), and the upper horizontal plate (4.1) and the lower horizontal plate (4.2) are connected by tension bolts (4.5) passing through the floor slab (3); the adapter plate (4.3) is attached to the outer surface of the floor slab (3), and the adapter plate (4.3) is welded to the outer side surfaces of the upper horizontal plate (4.1) and the lower horizontal plate (4.2); the splint (4.4) has two pieces, The two plywood panels (4.4) are connected to the outer surface of the adapter plate (4.3) at longitudinal intervals, and are clamped on both sides of the vertical keel (1.1.1) at corresponding positions; the plywood panels (4.4) are connected to the vertical keel (1.1.1) via connecting bolts (4.6); fireproof rock wool (12) is provided in the keel frame (1.1) at a 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 panel (1.2) is disconnected at the fireproof rock wool (12), and blocking panels (13) are provided in the gap between the inner side panel (1.2) and the floor slab (3) and at the top and bottom of the fireproof rock wool (12).

4. The multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 2, characterized in that: The expansion joint structure is also included; the expansion joint structure is arranged between a multi-arc decorative curtain wall system suitable for complex curved surface modeling and an adjacent structure; the vertical keels (1.1.1) are respectively arranged 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 decorative component (17); the joint plates (14) are two and are arranged at intervals in the longitudinal direction, and the horizontal sections of the two joint plates (14) are in an arc shape, and the joint plates (14) are The arc grooves are arranged in opposite directions; the space between the two joint plates (14) is filled with a second insulation layer (18); both ends of each joint plate (14) are fixed to the vertical keel (1.1.1) on the corresponding side through a pressure plate (19), and a clamping groove (20) is provided on the side of the pressure plate (19) close to the expansion joint; the elastic strip (15) has two groups, which are respectively arranged on the inner and outer sides of the two joint plates (14); a clamping strip (21) is respectively provided at both ends of the elastic strip (15); the clamping strip (21) is clamped in the clamping groove. The outer decorative member (17) is arranged on the outer side of the expansion joint, and the outer decorative member (17) is connected to the outer elastic strip (15) through the outer mounting plate (24) and the outer bolt (25); the inner decorative panel (16) is arranged on the inner side of the expansion joint, and the inner decorative panel (16) is connected to the inner elastic strip (15) through the inner mounting plate (22) and the inner bolt (23); the outer decorative member (17) includes an outer panel section (17.1) and a side panel section (17.2); The horizontal section of the outer panel section (17.1) is a multi-section continuously arranged arc shape adapted to the multi-arc decorative panel (2); the inner ends of the side panel sections (17.2) are respectively bent to form folded plate sections (17.3); the two ends of the outer mounting plate (24) are respectively pressed onto the folded plate sections (17.3) on both sides; a group of outer bolts (25) are vertically spaced and passed between the outer mounting plate (24) and the elastic strip (15) on the corresponding side to connect 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 in the shape of a long strip and is arranged along the vertical length; the connecting plate (9) is in the shape of an L, 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 plug plate (10) is in the shape of a long strip and is connected to the connecting plate (9) and close to the side corresponding to the vertical side of the double-arc plate (2.1), and the plug plate (10) is correspondingly plugged 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 assembly (6) is arranged on the keel frame (1.1), at the joints of the corresponding adjacent double-arc panels (2.1) or at the vertical sides of the corresponding multi-arc decorative panels (2); the connecting assembly (6) comprises a fixing plate (6.1) and a horizontal rod (6.2); the fixing plate (6.1) is connected to the keel frame (1.1); the horizontal rod (6.2) is connected to the outside of the fixing plate (6.1), and the horizontal rod (6.2) 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: 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) via screws.

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

9. A construction method for a multi-arc decorative curtain wall system suitable for complex curved surface shapes according to any one of claims 1 to 8, characterized in that: The steps are as follows: 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 support keel system skeleton through simulation analysis and optimize the splicing scheme of the double-arc panels; Step 3: prefabricate the components of the support keel system (1) in the factory; Step 4, installation of the support keel system (1): connecting the support keel system (1) to the floor slab (3) of the main structure through the connecting plate group (4); 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 assembly (6), and insert the insert plate (10) into the U-shaped groove plate of the adjacent double-arc panel (2.1) to form a horizontal continuous arc, and install them in sequence until the last double-arc panel (2.1) is spliced.

10. The construction method of a multi-arc decorative curtain wall system suitable for complex curved surface shapes according to claim 9, characterized in that: It also includes the construction of the expansion joint structure, which specifically includes the following steps: Step 1, installation of the joint plate (14): fix the two arc-shaped joint plates to the vertical keel (1.1.1) through the pressing plate (19); Step 2, filling the gap between the two arc-shaped joint plates with a second insulation layer (18); Step 3, assembly of the elastic strip: embed the clips (21) at both ends of the elastic strip (15) into the clip slots (20) of the pressure plate (19); Step 4: Connect the exterior facing component (17) to the outer elastic strip (15) through the outer mounting plate (24) and the outer bolts (25), and connect the interior panel to the inner elastic strip (15) through the inner mounting plate (22) and the inner bolts (23).

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