UHPC plate and glass composite curtain wall system and construction method thereof

Abstract

A UHPC plate and glass composite curtain wall system and a construction method thereof, the curtain wall system comprising a main body steel structure, a UHPC outer curtain wall structure, a glass curtain wall structure and a UHPC inner curtain wall structure, the UHPC outer curtain wall and the glass curtain wall being alternately arranged along a ring direction, the overall facade constituting a continuous combination structure of inverted trapezoids and trapezoids with good visual rhythm and modern aesthetic sense. The UHPC outer curtain wall structure comprises an insulation layer, a UHPC outer curtain wall keel and a UHPC outer facing panel; the glass panel end of the glass curtain wall structure is embedded in the gap between the UHPC inner and outer facing panels. The UHPC inner curtain wall structure and the UHPC outer curtain wall structure are stably connected with the main body steel structure through inner and outer connecting rods. The present application solves the technical problems of lack of complete structure and function of the composite of UHPC and glass materials in the traditional curtain wall system, complex connection structure, great construction difficulty of various material combinations and complex node processing.

Description

Technical Field

[0001] This invention belongs to the field of building envelope technology, specifically a UHPC panel and glass composite curtain wall system and its construction method. Background Technology

[0002] Currently, curtain wall systems, especially glass and metal curtain walls, are widely used in high-rise and super high-rise buildings. Glass curtain walls, with their excellent lighting and modern aesthetics, have become an important symbol of urban architecture; while metal panel curtain walls (such as aluminum panels) are widely used due to their structural stability, ease of construction, and diverse appearances. However, with the continuous improvement of architectural aesthetics and performance requirements, single-material curtain wall systems are gradually revealing certain limitations in terms of structural safety, thermal performance, fire resistance, and aesthetic diversity.

[0003] In recent years, ultra-high performance concrete (UHPC) has been explored for use in curtain wall systems due to its excellent mechanical properties, durability, and plasticity. UHPC panels not only possess higher strength and durability but can also achieve a wide range of facade designs through complex molding processes. However, currently, UHPC curtain walls are mostly used as a single unit, lacking organic integration with other materials (such as glass), making it difficult to meet the demands of modern architecture for multi-material facade designs.

[0004] Furthermore, existing curtain wall construction methods involve complex connection points between different materials, challenging sealing processes, and high installation precision requirements, increasing construction costs and process complexity, and impacting project efficiency and the overall stability of the system. Therefore, there is an urgent need for a composite curtain wall system that is structurally sound, clearly designed, highly efficient to construct, and balances architectural aesthetics with performance. Summary of the Invention

[0005] The purpose of this invention is to provide a UHPC panel and glass composite curtain wall system and its construction method. It aims to solve the technical problems in traditional curtain wall systems, such as the scarcity of composite application of UHPC and glass materials, the lack of complete structural and functional composite, complex connection construction, high construction difficulty of multiple material combinations, complex node treatment, high installation accuracy requirements, and insufficient thermal insulation and sealing performance.

[0006] To achieve the above objectives, the present invention adopts the following technical solution.

[0007] A UHPC panel and glass composite curtain wall system includes a main steel structure; it also includes a UHPC exterior curtain wall structure and a glass curtain wall structure; the exterior facade of the UHPC exterior curtain wall structure is an inverted trapezoid, and the exterior facade of the glass curtain wall structure is trapezoidal, with the UHPC exterior curtain wall structure and the glass curtain wall structure alternating around the perimeter; the UHPC exterior curtain wall structure includes an insulation layer, a UHPC exterior curtain wall keel, and a UHPC exterior cladding panel arranged sequentially from the inside out; the UHPC exterior curtain wall keel is spaced apart on the outside of the main steel structure and connected to the main steel structure via external connecting rods. Structural connection; the insulation layer is set between the main steel structure and the UHPC exterior curtain wall keel; the UHPC exterior panel is set on the outside of the UHPC exterior curtain wall keel, and a first connecting keel is set on the inner side of the UHPC exterior panel; the UHPC exterior panel is connected to the UHPC exterior curtain wall keel through the first connecting keel; the UHPC exterior panel includes a middle arc-shaped plate segment and an edge plate segment; there is one set of middle arc-shaped plate segments, which are continuously set along the concave arc line; there are two edge plate segments, which are respectively set on both sides of the middle arc-shaped plate segment; one end of the edge plate segment is connected to... The middle arc-shaped panel segment is connected, and the other end of the side panel segment bends inward and covers the end of the UHPC exterior curtain wall keel; a UHPC interior curtain wall structure is set on the inner side of the main steel structure, corresponding to the position of the UHPC exterior curtain wall structure; the UHPC interior curtain wall structure includes a UHPC interior curtain wall keel and a UHPC interior panel; the UHPC interior curtain wall keel is connected to the main steel structure through an internal connecting rod; the UHPC interior panel is set on the inner side of the UHPC interior curtain wall keel, and both ends of the UHPC interior panel are bent outward and cover the UHPC interior curtain wall keel. The end of the frame; a second connecting keel is provided on the outer surface of the UHPC interior panel; the UHPC interior panel is connected to the UHPC interior curtain wall keel through the second connecting keel; a gap is left between the end of the UHPC interior panel and the end of the UHPC exterior panel; the glass curtain wall structure includes a glass curtain wall keel and a glass panel; the end of the glass panel is inserted into the gap between the UHPC interior panel and the UHPC exterior panel and is connected to the insulation layer; the glass curtain wall keel is provided on the inner side of the glass panel and is connected to the main steel structure.

[0008] Preferably, the external connecting rod is a straight rod or a V-shaped rod, with one end of the external connecting rod welded to the steel column of the main steel structure and the other end of the external connecting rod welded to the UHPC external curtain wall keel.

[0009] Preferably, the insulation layer includes an insulation layer frame and rock wool; the insulation layer frame is a grid skeleton made of aluminum alloy or steel; the rock wool is filled in the grid of the insulation layer frame; and panels are respectively provided on the inner and outer sides of the rock wool.

[0010] Preferably, the horizontal cross-section of the intermediate arc-shaped plate segment is a series of continuously concave arc-shaped lines, and adjacent intermediate arc-shaped plate segments are connected by tongue and groove joints; anchor plates are spaced apart on the inner side of the UHPC exterior panel; anchor rods are provided on the side of the anchor plate near the first connecting keel; the anchor rods are welded to the first connecting keel.

[0011] Preferably, the edge panel segment is integrally formed from a multi-arc edge panel and a side panel; the horizontal cross-section of the multi-arc edge panel is a series of continuously concave arc lines; the horizontal cross-section of the side panel is a straight line, covering the end of the UHPC exterior curtain wall keel.

[0012] Preferably, the glass curtain wall keel includes vertical keels and horizontal keels; the horizontal cross-section of the vertical keel is T-shaped, and the wing plate of the vertical keel is located on the outer side; a strip groove is provided on the outer side of the vertical keel along its vertical length; the horizontal keels are arranged at intervals between adjacent vertical keels along the vertical direction, and the horizontal keels are connected to the vertical keels by connecting plates and screws.

[0013] Preferably, the glass panel is assembled from a set of glass panel units; the vertical keel is correspondingly set with the vertical joints of the horizontally adjacent glass panel units, and the horizontal keel is correspondingly set with the horizontal joints of the vertically adjacent glass panel units; a pressure plate is provided at the intersection of the horizontal and vertical joints; the pressure plate is pressed against the outer surface of the surrounding glass panel units, and the pressure plate is connected to the vertical keel by a tie rod; a gasket is provided between the pressure plate and the glass panel units; a hole for the tie rod is opened in the middle of the gasket, and a sealing rod and sealant are provided around the perimeter of the gasket; a first support plate is provided on the outer surface of the vertical keel at the corresponding horizontal joint; the first support plate is located above the tie rod; the first support plate supports the bottom of the two glass panel units above the horizontal joint, and the outer edge of the first support plate does not extend beyond the outer surface of the glass panel unit.

[0014] Preferably, an outer clamping plate is provided on the outer side of the insulation layer keel along both vertical sides; the outer clamping plate is connected to the insulation layer keel by tie bolts, and the vertical side of the outer clamping plate near the glass panel extends beyond the corresponding end face of the insulation layer keel; the part of the outer clamping plate extending beyond the insulation layer keel is clamped on the outer side of the glass panel; an inner clamping plate is provided on the end face of the insulation layer keel, located on the inner side of the glass panel; the horizontal cross-section of the inner clamping plate is an inverted L-shape, and the longitudinal side of the inner clamping plate is connected to the end face of the insulation layer keel, while the transverse side of the inner clamping plate is clamped on the inner side of the glass panel.

[0015] The construction method for this UHPC panel and glass composite curtain wall system includes the following steps.

[0016] Step 1: Create a 3D model based on the architectural design to determine the alternating circumferential arrangement of the UHPC exterior curtain wall structure and the glass curtain wall structure.

[0017] Step two involves the construction of the main steel structure, including welding external connecting rods on the outside of the main steel structure and welding internal connecting rods on the inside of the main steel structure.

[0018] Step 3: Install the UHPC exterior curtain wall keel and insulation layer.

[0019] Step 4: Construct the UHPC interior curtain wall keel.

[0020] Step 5: Installation of the glass curtain wall structure, including the installation of the glass curtain wall frame and the glass panels.

[0021] Step six: Install the UHPC exterior panel and UHPC interior panel. This completes the installation process.

[0022] Preferably, during the construction of the glass curtain wall keel, the spacing of the vertical keel is ≤1200mm and the spacing of the horizontal keel is ≤1500mm; before the vertical keel is installed, threaded blind holes are pre-installed in the strip groove of the vertical keel and a first support plate is set. When the first support plate is installed, ensure that the outer edge of the first support plate does not exceed the outer surface of the glass panel to be installed.

[0023] During glass panel installation, a vacuum suction cup is used to lift the glass panel unit and place it on the first support plate. A pressure plate with a pull rod is used to press the glass panel unit onto the glass panel unit. The outermost glass panel unit is connected to the insulation layer.

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

[0025] 1. This invention, through the installation of internal and external connecting rods, connecting keels, anchor plates, and other structures, forms a stable force-bearing system between the UHPC and the glass panels, improving the overall structural safety and wind pressure resistance of the curtain wall. It boasts advantages such as structural stability and reliable connections. Simultaneously, the facade of this invention is aesthetically pleasing and varied. The UHPC exterior panels utilize a combination of central curved sections and edge sections to create complex and varied curved surface effects. The glass curtain wall is arranged in a trapezoidal pattern, and the alternating arrangement results in a layered and modern building facade, meeting the aesthetic demands of high-end buildings. This invention addresses the scarcity of traditional composite applications of UHPC and glass materials, and the lack of a complete structural and functional integration.

[0026] 2. The UHPC panel and glass composite curtain wall system of the present invention incorporates a composite insulation layer (including rock wool and plywood) within the UHPC structure. The glass panels are connected to the UHPC exterior curtain wall structure via outer and inner plywood mounted on the UHPC exterior curtain wall keel. Furthermore, the insulation layer is connected to the gaps between the UHPC panels, and elastic pads, sealing rods, and sealant are provided, effectively improving the overall thermal performance and waterproof sealing performance of the curtain wall system. Simultaneously, the present invention uses extended UHPC interior and exterior panels to conceal the joints, enhancing the structural aesthetics. This structure solves the technical problems of complex joint processing, high installation precision requirements, insufficient insulation and sealing performance, complex connection structures, and high construction difficulty associated with traditional UHPC and glass composite applications, particularly regarding the combination of multiple materials.

[0027] 3. The UHPC panel and glass composite curtain wall system of this invention features a modular design for each component, with clear and defined construction procedures. Pre-set 3D modeling and structural components such as support plates and pressure plates facilitate glass panel installation. The UHPC panels are also quickly assembled using keels and anchors, significantly improving construction efficiency and installation accuracy. The system employs standardized node structures such as the first support plate, gaskets, and tie rods, facilitating later inspection and replacement of glass panels and reducing maintenance costs.

[0028] 4. The UHPC panel and glass composite curtain wall system of this invention has a flexible structure and distinct modules, which is suitable for the modern architectural design needs of various complex curved surfaces, height differences and varied shapes, and has broad application prospects. Attached Figure Description

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the UHPC exterior curtain wall structure and the glass curtain wall structure alternately arranged in the circumferential direction in this invention.

[0031] Figure 2 This is a schematic diagram of the horizontal cross-section of the UHPC exterior curtain wall structure in this invention.

[0032] Figure 3 This is a schematic diagram of the exterior facade structure of the glass curtain wall structure in this invention.

[0033] Figure 4 This is a schematic diagram of the horizontal cross-section of the connection node between the glass panel and the glass curtain wall keel in this invention.

[0034] Figure 5 This is a schematic diagram of the longitudinal section structure of the connection node between the glass panel and the glass curtain wall keel in this invention.

[0035] Figure 6 This is a schematic diagram of the longitudinal section structure of the connection node between the outermost glass panel unit and the insulation layer keel in this invention.

[0036] Figure 7 This is a schematic diagram of the horizontal cross-sectional structure of the insulation layer in this invention.

[0037] Figure 8 This is a schematic diagram of the connection structure between the side plate segment and the middle arc-shaped plate segment in this invention.

[0038] Figure 9 This is a schematic diagram of the connection structure between the interior panel block and the UHPC interior curtain wall keel in this invention.

[0039] Figure 10 This is a schematic diagram of the longitudinal cross-sectional structure of the horizontal keel in this invention.

[0040] Figure 11 This is a schematic diagram of the horizontal cross-section of the connection node between the outermost glass panel unit and the insulation layer keel in this invention.

[0041] Attached reference numerals: 1 – Main steel structure; 1.1 – Column; 1.2 – Horizontal beam; 2 – Insulation layer; 2.1 – Insulation layer keel; 2.2 – Rock wool; 2.3 – Panel; 3 – UHPC exterior curtain wall keel; 4 – UHPC exterior cladding panel; 4.1 – Middle curved panel segment; 4.2 – Edge panel segment; 4.2.1 – Multi-curved panel; 4.2.2 – Side panel; 5 – External connecting rod; 6 – First connecting keel; 7 – UHPC interior curtain wall keel; 8 – UHPC interior panel; 8.1 – Interior panel block; 9 – Internal connecting rod; 10 – Second connecting keel; 11 – Glass curtain wall keel; 11.1 – Vertical 11.2 - Horizontal keel, 11.2.1 - Upper arc plate, 11.2.2 - Lower arc plate, 11.2.3 - Horizontal plate, 11.3 - Connecting plate, 11.4 - Screw, 12 - Glass panel, 12.1 - Glass panel unit, 13 - Anchor rod, 14 - Anchor plate, 15 - Strip groove, 16 - Pressure plate, 17 - Tie rod, 18 - Washer, 19 - First support plate, 20 - Outer clamping plate, 21 - Tie bolt, 22 - Inner clamping plate, 23 - Reinforcing plate, 24 - Second support plate, 25 - Horizontal groove, 26 - Horizontal protrusion, 27 - Hanging plate, 28 - Hanging groove, 29 - Door opening. Detailed Implementation

[0042] like Figure 1-11As shown, this UHPC panel and glass composite curtain wall system includes a main steel structure 1; it also includes a UHPC exterior curtain wall structure and a glass curtain wall structure; the exterior facade of the UHPC exterior curtain wall structure is an inverted trapezoid, and the exterior facade of the glass curtain wall structure is trapezoidal, with the UHPC exterior curtain wall structure and the glass curtain wall structure alternating in a circumferential direction; the UHPC exterior curtain wall structure includes an insulation layer 2, a UHPC exterior curtain wall keel 3, and a UHPC exterior decorative panel 4 arranged sequentially from the inside out; the UHPC exterior curtain wall keel 3 is spaced apart on the outside of the main steel structure 1 and connected to the main steel structure 1 by external connecting rods 5; the insulation layer 2 is installed between the main steel structure 1 and the UHPC exterior curtain wall structure 1. Between the HPC exterior curtain wall keel 3, the external connecting rod 5 passes through the insulation layer 2; the UHPC exterior panel 4 is set on the outside of the UHPC exterior curtain wall keel 3, and a first connecting keel 6 is set on the inner side of the UHPC exterior panel 4; the UHPC exterior panel 4 is connected to the UHPC exterior curtain wall keel 3 through the first connecting keel 6; the UHPC exterior panel 4 includes a middle arc-shaped plate segment 4.1 and an edge plate segment 4.2; there is one set of middle arc-shaped plate segments 4.1, which are continuously set along the concave arc line; there are two edge plate segments 4.2, which are respectively set on both sides of the middle arc-shaped plate segment 4.1; one end of the edge plate segment 4.2 is tongue-and-groove connected to the middle arc-shaped plate segment 4.1. The other end of the side panel segment 4.2 is bent inward and covers the end of the UHPC exterior curtain wall keel 3; a UHPC interior curtain wall structure is provided on the inner side of the main steel structure 1 at the position corresponding to the UHPC exterior curtain wall structure; the UHPC interior curtain wall structure includes a UHPC interior curtain wall keel 7 and a UHPC interior panel 8; the UHPC interior curtain wall keel 7 is connected to the main steel structure 1 through an inner connecting rod 9; the UHPC interior panel 8 is located on the inner side of the UHPC interior curtain wall keel 7, and both ends of the UHPC interior panel 8 are bent outward and cover the ends of the UHPC interior curtain wall keel 7; a second connecting rod is provided on the outer surface of the UHPC interior panel 8. The UHPC interior panel 8 is connected to the UHPC interior curtain wall keel 7 via the second connecting keel 10; the end of the UHPC interior panel 8 and the end of the UHPC exterior panel 4 are located in the same plane, and there is a gap between the end of the UHPC interior panel 8 and the end of the UHPC exterior panel 4; the glass curtain wall structure includes a glass curtain wall keel 11 and a glass panel 12; the end of the glass panel 12 is inserted into the gap between the UHPC interior panel 8 and the UHPC exterior panel 4, and is connected to the insulation layer 2; the glass curtain wall keel 11 is set on the inner side of the glass panel 12, and the glass curtain wall keel 11 is connected to the main steel structure 1.

[0043] In this embodiment, the external connecting rod 5 is a straight rod or a V-shaped rod. One end of the external connecting rod 5 is welded to the steel column of the main steel structure 1, and the other end of the external connecting rod 5 is welded to the UHPC external curtain wall keel 3. The first connecting keel 6 and the second connecting keel 10 are both keel frames formed by connecting horizontal and vertical rods.

[0044] In this embodiment, UHPC is an abbreviation for Ultra-High Performance Concrete.

[0045] In this embodiment, the insulation layer 2 includes an insulation layer frame 2.1 and rock wool 2.2; the insulation layer frame 2.1 is a grid skeleton made of aluminum alloy or steel; the rock wool 2.2 is filled in the grid of the insulation layer frame 2.1; and panels 2.3 are respectively provided on the inner and outer sides of the rock wool 2.2. The outer panel is made of aluminum single panel, and the inner panel is made of galvanized steel plate.

[0046] In this embodiment, the horizontal cross-section of the intermediate arc-shaped plate segment 4.1 is a series of continuously concave arc-shaped lines, and adjacent intermediate arc-shaped plate segments 4.1 are connected by tongue and groove joints.

[0047] In this embodiment, the side panel segment 4.2 is integrally formed from the multi-arc panel 4.2.1 and the side panel 4.2.2; the horizontal cross-section of the multi-arc panel 4.2.1 is a series of continuously concave arc lines; the horizontal cross-section of the side panel 4.2.2 is a straight line, covering the end of the UHPC exterior curtain wall keel 3.

[0048] In this embodiment, anchor plates 14 are provided at intervals on the inner surfaces of the middle arc-shaped plate segment 4.1 and the side plate segment 4.2; anchor rods 13 are provided on the side of the anchor plate 14 near the first connecting keel 6; the anchor rods 13 are welded to the first connecting keel 6.

[0049] In this embodiment, the glass curtain wall keel 11 includes a vertical keel 11.1 and a horizontal keel 11.2; the horizontal cross-section of the vertical keel 11.1 is T-shaped, and the wing plate of the vertical keel 11.1 is located on the outer side; a strip groove 15 is provided on the outer side of the vertical keel 11.1 along its vertical length; the horizontal keel 11.2 is arranged at intervals between adjacent vertical keels 11.1 along the vertical direction, and the horizontal keel 11.2 is connected to the vertical keel 11.1 by a connecting plate 11.3 and screws 11.4.

[0050] In this embodiment, the glass panel 12 is assembled from a set of glass panel units 12.1; the vertical keel 11.1 is correspondingly arranged with the vertical joints of the horizontally adjacent glass panel units 12.1, and the horizontal keel 11.2 is correspondingly arranged with the horizontal joints of the vertically adjacent glass panel units 12.1; a pressure plate 16 is provided at the intersection of the horizontal joints and the vertical joints; the pressure plate 16 is pressed onto the outer surface of the surrounding glass panel units 12.1, and the pressure plate 16 is connected to the vertical keel 11.1 by a tie rod 17; a gasket 18 is provided between the pressure plate 16 and the glass panel units 12.1; the gasket 18 has a hole in the middle through which the tie rod 17 passes, and the gasket... Sealing rods and sealant are provided around the perimeter of 18; in this embodiment, the inner end of the pull rod 17 is threaded, and a threaded blind hole is provided in the strip groove 15 of the vertical keel 11.1; the inner end of the pull rod 17 is inserted into the threaded blind hole and threadedly connected to the vertical keel 11.1, and the outer end of the pull rod 17 is connected to the middle of the inner side of the pressure plate 16; a first support plate 19 is provided on the outer side of the vertical keel 11.1 at the corresponding horizontal joint; the first support plate 19 is located above the pull rod 17; the first support plate 19 supports the bottom of the two glass panel units 12.1 above the horizontal joint, and the outer side of the first support plate 19 does not extend beyond the outer side of the glass panel unit 12.1. The first support plate 19 is composed of an inner narrow plate segment and an outer wide plate segment; the narrow plate segment is inserted into the strip groove 15, and the edge of the narrow plate segment is welded to the inner wall of the strip groove 15; the wide plate segment is supported at the bottom of the horizontally adjacent glass panel unit 12.1.

[0051] In this embodiment, a doorway 29 is provided at the bottom of the glass curtain wall structure.

[0052] In this embodiment, outer clamping plates 20 are respectively provided on the outer side of the insulation layer keel 2.1 along the vertical edges on both sides; the outer clamping plates 20 are connected to the insulation layer keel 2.1 by tie bolts 21, and the vertical edge of the outer clamping plate 20 near the glass panel 12 extends beyond the corresponding end face of the insulation layer keel 2.1; the part of the outer clamping plate 20 extending beyond the insulation layer keel 2.1 is clamped on the outer side of the glass panel 12; an inner clamping plate 22 is provided on the end face of the insulation layer keel 2.1 at the inner side of the glass panel 12; the horizontal cross-section of the inner clamping plate 22 is an inverted L-shape, and the longitudinal edge of the inner clamping plate 22 is connected to the end face of the insulation layer keel 2.1, and the transverse edge of the inner clamping plate 22 is clamped on the inner side of the glass panel 12; elastic pads, sealing rods and sealant are provided between the glass panel 12 and the inner clamping plate 22 and the outer clamping plate 20.

[0053] In this embodiment, the inner clamping plates 22 are arranged at vertical intervals; the outer clamping plates 20 are arranged at vertical intervals, and the outer clamping plates 20 and the inner clamping plates 22 are horizontally corresponding one-to-one; the spacing between adjacent inner clamping plates 22 corresponds to the horizontal joint of the vertically adjacent glass panel unit 12.1; a reinforcing plate 23 is provided on the insulation layer keel 2.1 at the spacing between adjacent inner clamping plates 22 and adjacent outer clamping plates 20; a second supporting plate 24 is welded to the reinforcing plate 23; the second supporting plate 24 supports the bottom of the glass panel unit 12.1 above the corresponding horizontal joint.

[0054] In this embodiment, the horizontal cross-section of the main steel structure 1 is arranged in a zigzag shape, and the horizontal cross-section shape of the UHPC exterior curtain wall keel 3 is adapted to the zigzag shape of the horizontal cross-section of the main steel structure 1. The main steel structure 1 includes columns 1.1 and horizontal beams 1.2; the columns 1.1 are arranged in a zigzag shape along the circumference; the horizontal beams 1.2 are vertically spaced between adjacent columns 1.1; the horizontal cross-section of the UHPC interior curtain wall keel 7 is zigzag-shaped and is set between adjacent columns 1.1, with both ends of the UHPC interior curtain wall keel 7 welded to the columns 1.1 on both sides respectively; the inner connecting rod 9 connects the UHPC interior curtain wall keel 7 to the horizontal beams 1.2 accordingly.

[0055] In this embodiment, the horizontal cross-sectional shape of the UHPC exterior curtain wall keel 3 is adapted to the horizontal cross-sectional shape of the UHPC exterior decorative panel 4; the horizontal cross-section of the middle part of the UHPC exterior curtain wall keel 3 is an inwardly recessed groove; the two ends of the UHPC exterior curtain wall keel 3 are bent inward to form folded edges; the arc-shaped plate segment 4.1 is correspondingly set at the groove position of the UHPC exterior curtain wall keel 3.

[0056] In this embodiment, the horizontal keel 11.2 is spliced ​​from an upper arc-shaped plate 11.2.1 and a lower arc-shaped plate 11.2.2, and the two arc-shaped plates are spliced ​​together to form a hollow rod with a circular longitudinal cross-section; a horizontal plate 11.2.3 is provided in the arc-shaped groove of the upper arc-shaped plate 11.2.1 near the bottom edge; the vertical cross-section of the connecting plate 11.3 is L-shaped, and the horizontal edge of the connecting plate 11.3 is attached to the bottom of the horizontal plate 11.2.3; the vertical edge of the connecting plate 11.3 is attached to the web of the vertical keel 11.1; screws 11.4 fix the connecting plate 11.3 to the horizontal plate 11.2.3 and the vertical keel 11.1.

[0057] In this embodiment, horizontal grooves 25 are provided on the inner wall of the lower arc plate 11.2.2 near the top edges on both sides; horizontal protrusions 26 are provided on the outer wall of the upper arc plate 11.2.1 near the bottom edges on both sides; the horizontal protrusions 26 are correspondingly engaged in the horizontal grooves 25.

[0058] The construction method for this UHPC panel and glass composite curtain wall system includes the following steps.

[0059] Step 1: Create a 3D model based on the architectural design to determine the alternating circumferential arrangement of the UHPC exterior curtain wall structure and the glass curtain wall structure.

[0060] Step two: Construction of the main steel structure 1, including welding external connecting rods 5 on the outside of the main steel structure 1 and welding internal connecting rods 9 on the inside of the main steel structure 1; during the construction of the main steel structure 1, the columns 1.1 are arranged in a zigzag pattern along the circumference, and the horizontal beams 1.2 are connected vertically at intervals between adjacent columns 1.1. The external connecting rods 5 are welded to the outer surface of the columns 1.1, and the internal connecting rods 9 are connected to the middle of the inner surface of the horizontal beams 1.2.

[0061] Step 3: Construct the UHPC exterior curtain wall keel 3 and insulation layer 2; before constructing the UHPC exterior cladding panel 4, create a UHPC panel unit processing drawing based on the building shape, and divide the splicing units of the curved panel segment and the edge panel segment; when constructing the insulation layer keel 2.1, install outer clamping plates 20 on the outer surface of the insulation layer keel 2.1 and along the vertical edges on both sides, and install inner clamping plates 22 on the end face of the insulation layer keel 2.1.

[0062] Step 4: Install the UHPC interior curtain wall keel 7; weld the UHPC interior curtain wall keel 7 to the columns 1.1 on both sides, and weld the UHPC interior curtain wall keel 7 to the inner connecting rod 9.

[0063] Step 5, installation of the glass curtain wall structure, including the installation of the glass curtain wall keel 11 and the glass panel 12;

[0064] During the construction of the glass curtain wall keel 11, the spacing of the vertical keel 11.1 is ≤1200mm, and the spacing of the horizontal keel 11.2 is ≤1500mm. Before the installation of the vertical keel 11.1, threaded blind holes are pre-set in the strip groove 15 of the vertical keel 11.1 and the first support plate 19 is set. The hole spacing error is ≤2mm. When the first support plate 19 is installed, ensure that the outer edge of the first support plate 19 does not exceed the outer surface of the glass panel to be installed. Connect the glass curtain wall keel 11 to the main steel structure 1 at the corresponding position.

[0065] When installing the glass panel 12, a vacuum suction cup is used to lift the glass panel unit 12.1 and place it on the first support plate 19. A pressure plate 16 with a pull rod is used to press the glass panel unit 12.1 onto the glass panel unit 12.1. The end of the outermost glass panel unit 12.1 is inserted into the groove between the inner clamping plate 22 and the outer clamping plate 20.

[0066] Step 6: Install the UHPC exterior panel 4 and UHPC interior panel 8. The first connecting keel 6 is respectively set on the inner side of each middle arc-shaped panel segment 4.1 and each side panel segment 4.2. The middle arc-shaped panel segment 4.1 and the side panel segment 4.2 are constructed sequentially from the middle to both sides. The first connecting keel 6 is used to connect the middle arc-shaped panel segment 4.1 and the side panel segment 4.2 to the UHPC exterior curtain wall keel 3. In this embodiment, the UHPC interior panel 8 is spliced ​​from a set of interior panel blocks 8.1. The second connecting keel 10 is respectively set on the outer side of each UHPC interior panel 8. The interior panel block 8.1 is hooked and connected to the second connecting keel 10. The interior panel block 8.1 is constructed sequentially from the middle to both sides. The interior panel block 8.1 is connected to the inner side of the UHPC interior curtain wall keel 7 through the second connecting keel 10. The construction is then completed.

[0067] In this embodiment, the interior panel block 8.1 is connected to the second connecting keel 10; the second connecting keel 10 is provided with a hanging plate 27 at intervals on each of the two connecting keels, and a hanging groove 28 is provided on the interior panel block 8.1 at the position corresponding to the hanging plate 27; the hanging plate 27 is inserted into the hanging groove 28.

[0068] 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 UHPC panel and glass composite curtain wall system, comprising a main steel structure (1); characterized in that: The application further relates to a UHPC outer curtain wall structure and a glass curtain wall structure; the outer facade of the UHPC outer curtain wall structure is in the shape of an inverted trapezoid, the outer facade of the glass curtain wall structure is in the shape of a trapezoid, and the UHPC outer curtain wall structure and the glass curtain wall structure are arranged alternately along the ring direction; the UHPC outer curtain wall structure comprises, from inside to outside, a heat preservation layer (2), a UHPC outer curtain wall keel (3) and a UHPC outer veneer (4); the UHPC outer curtain wall keel (3) is arranged at the outer side of the main body steel structure (1) at intervals and is connected with the main body steel structure (1) through an outer connecting rod (5); the heat preservation layer (2) is arranged between the main body steel structure (1) and the UHPC outer curtain wall keel (3); the UHPC outer veneer (4) is arranged at the outer side of the UHPC outer curtain wall keel (3), and a first connecting keel (6) is arranged on the inner side surface of the UHPC outer veneer (4); the UHPC outer veneer (4) is connected with the UHPC outer curtain wall keel (3) through the first connecting keel (6); the UHPC outer veneer (4) comprises a middle arc-shaped plate segment (4.1) and a side plate segment (4.2); the middle arc-shaped plate segment (4.1) is arranged continuously along an inner concave arc-shaped line and is in one group; the side plate segment (4.2) is arranged at the two sides of the middle arc-shaped plate segment (4.1) respectively; one end of the side plate segment (4.2) is connected with the middle arc-shaped plate segment (4.1), and the other end of the side plate segment (4.2) is bent inward and covers the end portion of the UHPC outer curtain wall keel (3); the inner side of the main body steel structure (1) is provided with a UHPC inner curtain wall structure at the position corresponding to the UHPC outer curtain wall structure; the UHPC inner curtain wall structure comprises a UHPC inner curtain wall keel (7) and a UHPC inner veneer (8); the UHPC inner curtain wall keel (7) is connected with the main body steel structure (1) through an inner connecting rod (9); the UHPC inner veneer (8) is arranged at the inner side of the UHPC inner curtain wall keel (7), and the two ends of the UHPC inner veneer (8) are bent outward and cover the end portions of the UHPC inner curtain wall keel (7) respectively; a second connecting keel (10) is arranged on the outer side surface of the UHPC inner veneer (8); the UHPC inner veneer (8) is connected with the UHPC inner curtain wall keel (7) through the second connecting keel (10); a spacing is left between the end portion of the UHPC inner veneer (8) and the end portion of the UHPC outer veneer (4); the glass curtain wall structure comprises a glass curtain wall keel (11) and a glass veneer (12); the end portion of the glass veneer (12) is inserted into the gap between the UHPC inner veneer (8) and the UHPC outer veneer (4) and is connected with the heat preservation layer (2); the glass curtain wall keel (11) is arranged on the inner side surface of the glass veneer (12) and is connected with the main body steel structure (1).

2. The UHPC panel and glass composite curtain wall system according to claim 1, characterized in that: The outer connecting rod (5) is a straight rod or a V-shaped rod, one end of the outer connecting rod (5) is welded with a steel column of the main body steel structure (1), and the other end of the outer connecting rod (5) is welded with the UHPC outer curtain wall keel (3).

3. The UHPC panel and glass composite curtain wall system of claim 1, wherein: The heat preservation layer (2) comprises a heat preservation layer keel (2.1) and rock wool (2.2); the heat preservation layer keel (2.1) is a grid skeleton made of aluminum alloy or profile steel; the rock wool (2.2) is filled in the grid of the heat preservation layer keel (2.1); a panel (2.3) is arranged on the inner and outer sides of the rock wool (2.2) respectively.

4. The UHPC panel and glass composite curtain wall system of claim 1, wherein: The horizontal section of the middle arc-shaped plate segment (4.1) is a plurality of continuous inwardly recessed arc-shaped lines, and the adjacent middle arc-shaped plate segments (4.1) are connected in a tongue-and-groove manner; the anchor plates (14) are arranged on the inner side of the UHPC outer veneer panel (4) at intervals; the anchor plates (14) are provided with anchor rods (13) close to the first connecting keel (6); the anchor rods (13) are welded to the first connecting keel (6).

5. The UHPC panel and glass composite curtain wall system of claim 1, wherein: The side plate segment (4.2) is integrally formed by a plurality of arc-shaped plate blocks (4.2.1) and side plate blocks (4.2.2); the horizontal section of the arc-shaped plate block (4.2.1) is a plurality of continuous inwardly recessed arc-shaped lines; the horizontal section of the side plate block (4.2.2) is a straight line, covering the end of the UHPC outer curtain wall keel (3). The glass curtain wall keel (11) comprises vertical keels (11.1) and horizontal keels (11.2); the horizontal section of the vertical keel (11.1) is in a T shape, and the wing plate of the vertical keel (11.1) is located on the outer side; a strip-shaped groove (15) is arranged on the outer side of the vertical keel (11.1) in the vertical direction; the horizontal keels (11.2) are arranged between adjacent vertical keels (11.1) in the vertical direction at intervals, and the horizontal keels (11.2) are connected to the vertical keels (11.1) by connecting plates (11.3) and screws (11.4).

6. The UHPC panel and glass composite curtain wall system of claim 1, wherein: The glass panel (12) is spliced by a group of glass panel units (12.1); the vertical keels (11.1) are arranged correspondingly to the vertical joints of the horizontally adjacent glass panel units (12.1), and the horizontal keels (11.2) are arranged correspondingly to the horizontal joints of the vertically adjacent glass panel units (12.1); a pressing plate (16) is arranged at the intersection position of the horizontal joint and the vertical joint; the pressing plate (16) is pressed on the outer side of the surrounding glass panel units (12.1), and the pressing plate (16) is pulled to the vertical keel (11.1) by a pull rod (17); a gasket (18) is arranged between the pressing plate (16) and the glass panel unit (12.1); the middle part of the gasket (18) is provided with a hole through which the pull rod (17) passes, and a sealing rod and sealing glue are arranged on the four peripheral edges of the gasket (18); a first supporting plate (19) is arranged on the outer side of the vertical keel (11.1) and corresponds to the horizontal joint; the first supporting plate (19) is located above the pull rod (17); the first supporting plate (19) supports the bottom of the two glass panel units (12.1) above the horizontal joint, and the outer side of the first supporting plate (19) does not exceed the outer side of the glass panel unit (12.1).

7. The UHPC panel and glass composite curtain wall system of claim 6, wherein: ​ 8. The UHPC panel and glass composite curtain wall system of claim 3, wherein: The outer side of the heat preservation layer keel (2.1) is provided with an outer clamping plate (20) along the vertical edges of the two sides respectively; the outer clamping plate (20) is connected with the heat preservation layer keel (2.1) through a tension bolt (21), and the vertical edge of the outer clamping plate (20) close to the glass panel (12) side exceeds the corresponding side end surface of the heat preservation layer keel (2.1); the part of the outer clamping plate (20) exceeding the heat preservation layer keel (2.1) is clamped on the outer side of the glass panel (12); the end surface of the heat preservation layer keel (2.1) is provided with an inner clamping plate (22) at the inner side of the glass panel (12); the horizontal section of the inner clamping plate (22) is inverted L-shaped, and the longitudinal edge of the inner clamping plate (22) is connected with the end surface of the heat preservation layer keel (2.1), and the transverse edge of the inner clamping plate (22) is clamped on the inner side of the glass panel (12).

9. A construction method of a glass composite curtain wall system of the UHPC panel according to any one of claims 1 to 8, characterized in that, The steps include the following: Step one, three-dimensional modeling according to the architectural design shape, determine the annular alternating arrangement scheme of the UHPC outer curtain wall structure and the glass curtain wall structure; Step two, construction of the main body steel structure (1), and welding of the outer connecting rod (5) on the outer side of the main body steel structure (1), and welding of the inner connecting rod (9) on the inner side of the main body steel structure (1); Step three, construction of the UHPC outer curtain wall keel (3) and the heat preservation layer (2); Step four, construction of the UHPC inner curtain wall keel (7); Step five, installation of the glass curtain wall structure, including installation of the glass curtain wall keel (11) and installation of the glass panel (12); Step six, installation of the UHPC outer decorative panel (4) and the UHPC inner decorative panel (8), and the construction is completed.

10. The construction method of the UHPC panel and glass composite curtain wall system according to claim 9, characterized in that: When the glass curtain wall keel (11) is constructed, the spacing of the vertical keel (11.1) is ≤1200mm, and the spacing of the horizontal keel (11.2) is ≤1500mm; before the vertical keel (11.1) is installed, a threaded blind hole is pre-installed in the strip-shaped groove (15) of the vertical keel (11.1) and a first supporting plate (19) is arranged; when the first supporting plate (19) is installed, the outer edge of the first supporting plate (19) is ensured not to exceed the outer surface of the glass panel to be installed; When the glass panel (12) is installed, the glass panel unit (12.1) is placed on the first supporting plate (19) by using a vacuum suction cup to hoist the glass panel unit (12.1), and the glass panel unit (12.1) is pressed on the glass panel unit (12.1) by using a pressing plate (16) provided with a pull rod; the outermost glass panel unit (12.1) is connected with the heat preservation layer (2).

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