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

Abstract

The invention discloses a UHPC board and glass composite curtain wall system and a construction method thereof.The curtain wall system comprises a main body steel structure, UHPC outer curtain wall structures, glass curtain wall structures and UHPC inner curtain wall structures, the UHPC outer curtain wall structures and the glass curtain wall structures are alternately arranged in the annular direction, and the whole vertical face forms a broken-line-shaped inverted trapezoid and trapezoid continuous combined structure; good visual rhythm and modern aesthetic feeling are realized. The UHPC outer curtain wall structure comprises a heat preservation layer, a UHPC outer curtain wall keel and a UHPC outer veneer. And the end part of the glass panel of the glass curtain wall structure is embedded in a gap between the UHPC inner decorative panel and the UHPC outer decorative panel. The UHPC inner curtain wall structure and the UHPC outer curtain wall structure are stably connected with the main body steel structure through the inner connecting rod and the outer connecting rod. The technical problems that in a traditional curtain wall system, compounding of UHPC and glass materials lacks of complete structure and function compounding, the connecting structure is complex, the combination construction difficulty of multiple materials is large, and node processing is complex are solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building envelope, in particular to a UHPC plate and glass composite curtain wall system and a construction method thereof. BACKGROUND

[0002] At present, building facades widely adopt curtain wall systems in high-rise or super high-rise buildings, especially glass curtain walls and metal curtain walls. Glass curtain walls become one of the important symbols of urban buildings due to their good lighting and modernity. Metal plate curtain walls (such as aluminum plates) are widely used due to their stable structure, convenient construction and diversified appearance. However, with the continuous improvement of architectural aesthetics and performance requirements, the single material curtain wall system gradually exposes certain limitations in structural safety, thermal performance, fire performance and appearance diversity.

[0003] In recent years, ultra-high performance concrete (UHPC) has been tried to be used in curtain wall systems due to its excellent mechanical properties, durability and plasticity. UHPC panels not only have higher strength and durability, but also can realize rich facade modeling through complex molding process. However, the current UHPC curtain wall is mostly in the form of integral application, and lacks organic combination with other materials (such as glass), which is difficult to meet the needs of modern building for multi-material combination facade design.

[0004] In addition, in the existing curtain wall construction method, the connection nodes between different materials are complex, the sealing treatment is difficult, the installation precision is high, which increases the construction cost and process complexity, affects the engineering efficiency and the stability of the overall performance of the system. Therefore, there is an urgent need for a composite curtain wall system with reasonable structure, clear construction, efficient construction, consideration of architectural aesthetics and performance. SUMMARY

[0005] The purpose of the present application is to provide a UHPC plate and glass composite curtain wall system and a construction method thereof, which solves the technical problems of the traditional curtain wall system, such as the lack of composite application form of UHPC and glass materials, the lack of complete structure and function of the composite, the complex connection structure, the high construction difficulty of multiple material combination, the complex node processing, the high installation precision requirement and the insufficient heat preservation and sealing performance.

[0006] To achieve the above purpose, the present application adopts the following technical solutions.

[0007] A UHPC panel and glass composite curtain wall system includes a main steel structure; a UHPC outer curtain wall structure and a glass curtain wall structure; the outer facade of the UHPC outer curtain wall structure is an inverted trapezoid, the outer facade of the glass curtain wall structure is a trapezoid, and the UHPC outer curtain wall structure and the glass curtain wall structure are alternately arranged along the circumferential direction; the UHPC outer curtain wall structure includes an insulation layer, a UHPC outer curtain wall keel and a UHPC outer decorative panel arranged in sequence from the inside to the outside; the UHPC outer curtain wall keel is arranged at intervals on the outside of the main steel structure and is connected to the main steel structure through external connecting rods Structural connection; the insulation layer is arranged between the main steel structure and the UHPC outer curtain wall keel; the UHPC outer decorative panel is arranged on the outside of the UHPC outer curtain wall keel, and a first connecting keel is arranged on the inner side of the UHPC outer decorative panel; the UHPC outer decorative panel is connected to the UHPC outer curtain wall keel through the first connecting keel; the UHPC outer decorative panel includes a middle arc plate segment and a side plate segment; the middle arc plate segment has a group, which is continuously arranged along the inward concave arc line; the side plate segment has two, which are respectively arranged on both sides of the middle arc plate segment; one end of the side plate segment is connected to the UHPC outer curtain wall keel The middle arc plate section is connected, and the other end of the side plate section is bent inward and covers the end of the UHPC outer curtain wall keel; the UHPC inner curtain wall structure is arranged on the inner side of the main steel structure, corresponding to the position of the UHPC outer curtain wall structure; the UHPC inner curtain wall structure includes a UHPC inner curtain wall keel and a UHPC interior panel; the UHPC inner curtain wall keel is connected to the main steel structure through an inner connecting rod; the UHPC interior panel is arranged on the inner side of the UHPC inner curtain wall keel, and the two ends of the UHPC interior panel are bent outward and covered on the UHPC inner curtain wall keel The end of the keel is provided on the outer side of the UHPC interior panel; the UHPC interior panel is connected to the UHPC inner 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 in 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 the glass curtain wall keel is connected to the main steel structure.

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

[0009] Preferably, the insulation layer includes an insulation layer keel and rock wool; the insulation layer keel is a grid frame made of aluminum alloy or steel; the rock wool is filled in the grid of the insulation layer keel; and panels are 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 plurality of continuously inwardly concave arc lines, and adjacent intermediate arc-shaped plate segments are connected with tongue and groove; anchor plates are arranged at intervals on the inner side surface of the UHPC exterior panel; an anchor rod is provided on the side of the anchor plate close to the first connecting keel; and the anchor rod is welded to the first connecting keel.

[0011] Preferably, the edge panel section is formed integrally by an edge multi-arc plate and a side plate; the horizontal section of the edge multi-arc plate is a plurality of continuous inwardly concave arc lines; the horizontal section of the side plate is a straight line, covering the end of the UHPC outer curtain wall keel.

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

[0013] Preferably, the glass panel is formed by splicing a group of glass panel units; the vertical keels are arranged corresponding to the vertical seams of horizontally adjacent glass panel units, and the horizontal keels are arranged corresponding to the horizontal seams of vertically adjacent glass panel units; a pressure plate is provided at the intersection of the horizontal seams and the vertical seams; the pressure plate is pressed onto the outer sides of the glass panel units on all sides, and the pressure plate is tied to the vertical keels through a tie rod; a gasket is provided between the pressure plate and the glass panel unit; a hole is provided in the middle of the gasket for passing through the tie rod, and sealing rods and sealant are provided on the edges of the gasket; a first supporting plate is provided on the outer side of the vertical keel, corresponding to the horizontal seam; the first supporting plate is located above the tie rod; the first supporting plate is supported on the bottom of the two glass panel units above the horizontal seam, and the outer side of the first supporting plate does not exceed the outer side of the glass panel unit.

[0014] Preferably, outer plywood is provided on the outer side surface of the thermal insulation layer keel and along the vertical edges on both sides; the outer plywood is connected to the thermal insulation layer keel by tension bolts, and the vertical edge of the outer plywood close to the glass panel exceeds the end face of the thermal insulation layer keel corresponding to the side; the part of the outer plywood exceeding the thermal insulation layer keel is clamped on the outer side of the glass panel; an inner plywood is provided on the end face of the thermal insulation layer keel, located on the inner side face of the glass panel; the horizontal section of the inner plywood is an inverted L-shape, and the longitudinal edge of the inner plywood is connected to the end face of the thermal insulation layer keel, and the horizontal edge of the inner plywood is clamped on the inner side of the glass panel.

[0015] The construction method of the UHPC board and glass composite curtain wall system includes the following steps.

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

[0017] Step 2: Construction of the main steel structure, welding of outer connecting rods on the outside of the main steel structure, and welding of inner connecting rods on the inside of the main steel structure.

[0018] Step three: construct the UHPC exterior curtain wall keel and insulation layer.

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

[0020] Step five: Installation of the glass curtain wall structure, including the installation of the glass curtain wall keel and the installation of the glass panel.

[0021] Step six: Install UHPC exterior panels and UHPC interior panels, and the construction is completed.

[0022] Preferably, during the construction of the glass curtain wall keels, the spacing between the vertical keels is ≤1200mm, and the spacing between the horizontal keels is ≤1500mm; before the vertical keels are installed, threaded blind holes are pre-set in the strip grooves of the vertical keels and a first supporting plate is provided. When the first supporting plate is installed, ensure that the outer edge of the first supporting plate does not extend beyond the outer surface of the glass panel to be installed; When installing the glass panel, a vacuum suction cup is used to lift the glass panel unit and place it on the first supporting plate. A pressing plate with a pull rod is used to press the glass panel unit onto the glass panel unit, and the edgemost glass panel unit is connected to the insulation layer.

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

[0024] 1. This invention establishes a stable force-bearing system between the UHPC and glass panels by employing internal and external connecting rods, connecting keels, and anchor plates. This improves the overall structural safety and wind pressure resistance of the curtain wall, offering advantages such as structural stability and reliable connections. Furthermore, the present invention offers a beautiful and versatile facade. The UHPC exterior panels utilize a combination of central curved panels and side panels to create complex and varied curved surfaces. The glass curtain wall is arranged in a trapezoidal pattern. The alternating arrangement creates a layered and modern facade, meeting the aesthetic requirements of high-end architecture. This addresses the technical issues of traditional UHPC and glass composite applications, which are relatively scarce and lack a complete structural and functional integration.

[0025] 2. The UHPC panel and glass composite curtain wall system of the present invention incorporates a composite insulation layer (containing 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 panels mounted on the UHPC exterior curtain wall keel. The gaps between the UHPC panels are connected by an insulation layer and equipped with elastic pads, sealing rods, and sealant, effectively improving the thermal performance and waterproof sealing properties of the overall curtain wall system. Furthermore, the present invention utilizes extended UHPC interior and exterior panels to conceal joints, enhancing the structural appearance. This structure addresses the technical issues of conventional UHPC and glass composite applications, such as complex joint processing, high installation precision requirements, insufficient insulation and sealing performance, complex connection structures, and the difficult construction of multiple material combinations.

[0026] 3. The modular design of each component of the UHPC panel and glass composite curtain wall system provides a clear and defined construction process. Pre-defined 3D modeling and structural components such as support plates and pressure plates facilitate glass panel installation. UHPC panels are also quickly assembled using keels and anchors, significantly improving construction efficiency and installation accuracy. The system utilizes standardized joints such as the first support plate, spacers, and tie rods, facilitating subsequent inspection and replacement of glass panels, reducing maintenance costs.

[0027] 4. The UHPC board and glass composite curtain wall system of the present invention has a flexible structure and distinct modules, and is suitable for modern architectural design requirements with various complex curves, height differences, and variable shapes, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0029] Figure 1 It is a structural schematic diagram of the present invention in which the UHPC outer curtain wall structure and the glass curtain wall structure are alternately arranged along the circumferential direction.

[0030] Figure 2 It is a schematic diagram of the horizontal section structure of the UHPC exterior curtain wall structure in the present invention.

[0031] Figure 3 It is a schematic diagram of the exterior facade structure of the glass curtain wall structure in the present invention.

[0032] Figure 4 It is a schematic diagram of the horizontal cross-section structure of the connection node between the glass panel and the glass curtain wall keel in the present invention.

[0033] Figure 5 It is a schematic diagram of the longitudinal cross-section structure of the connection node between the glass panel and the glass curtain wall keel in the present invention.

[0034] Figure 6 This is a schematic diagram of the longitudinal cross-section structure of the connection node between the edge glass panel unit and the insulation layer keel in the present invention.

[0035] Figure 7 It is a schematic diagram of the horizontal cross-section structure of the thermal insulation layer in the present invention.

[0036] Figure 8 It is a schematic diagram of the connection structure between the side plate segment and the middle arc-shaped plate segment in the present invention.

[0037] Figure 9 It is a schematic diagram of the connection structure between the interior panel block and the UHPC interior curtain wall keel in the present invention.

[0038] Figure 10 It is a schematic diagram of the longitudinal section structure of the horizontal keel in the present invention.

[0039] Figure 11 This is a schematic diagram of the horizontal cross-section structure of the connection node between the edge glass panel unit and the insulation layer keel in the present invention.

[0040] Figure numbers: 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 decorative panel, 4.1-middle curved panel segment, 4.2-side 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-inner connecting rod, 10-second connecting keel, 11-glass curtain wall keel, 11.1-vertical Toward keel, 11.2 - horizontal keel, 11.2.1 - upper curved plate, 11.2.2 - lower curved plate, 11.2.3 - horizontal plate, 11.3 - connecting plate, 11.4 - screws, 12 - glass panel, 12.1 - glass panel unit, 13 - anchor rod, 14 - anchor plate, 15 - strip groove, 16 - pressure plate, 17 - pull rod, 18 - gasket, 19 - first supporting plate, 20 - outer splint, 21 - tension bolt, 22 - inner splint, 23 - reinforcement plate, 24 - second supporting plate, 25 - horizontal groove, 26 - horizontal ridge, 27 - mounting plate, 28 - mounting groove, 29 - door opening. DETAILED DESCRIPTION

[0041] like Figures 1-11As shown, the UHPC plate and glass composite curtain wall system comprises a main steel structure 1, 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 alternately arranged along the ring direction; the UHPC outer curtain wall structure comprises, from inside to outside, a thermal insulation layer 2, a UHPC outer curtain wall keel 3 and a UHPC outer veneer panel 4; the UHPC outer curtain wall keel 3 is arranged at intervals on the outer side of the main steel structure 1 and is connected to the main steel structure 1 through an outer connecting rod 5; the thermal insulation layer 2 is arranged between the main steel structure 1 and the UHPC outer curtain wall keel 3, and the outer connecting rod 5 passes through the thermal insulation layer 2; the UHPC outer veneer panel 4 is arranged on 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 panel 4; the UHPC outer veneer panel 4 is connected to the UHPC outer curtain wall keel 3 through the first connecting keel 6; the UHPC outer veneer panel 4 comprises a middle arc-shaped panel section 4.1 and a side panel section 4.2; the middle arc-shaped panel section 4.1 is arranged continuously along an inner concave arc-shaped line; the side panel section 4.2 is arranged on both sides of the middle arc-shaped panel section 4.1; one end of the side panel section 4.2 is connected to the middle arc-shaped panel section 4.1 in a tongue-and-groove manner, and the other end of the side panel section 4.2 is bent inward and covers the end of the UHPC outer curtain wall keel 3; a UHPC inner curtain wall structure is arranged on the inner side of the main steel structure 1 at a 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 panel 8; the UHPC inner curtain wall keel 7 is connected to the main steel structure 1 through an inner connecting rod 9; the UHPC inner veneer panel 8 is arranged on the inner side of the UHPC inner curtain wall keel 7, and both ends of the UHPC inner veneer panel 8 are bent outward and cover the ends of the UHPC inner curtain wall keel 7; a second connecting keel 10 is arranged on the outer side surface of the UHPC inner veneer panel 8; the UHPC inner veneer panel 8 is connected to the UHPC inner curtain wall keel 7 through the second connecting keel 10; the ends of the UHPC inner veneer panel 8 and the ends of the UHPC outer veneer panel 4 are located in the same plane, and a gap is left between the ends of the UHPC inner veneer panel 8 and the ends of the UHPC outer veneer panel 4; the glass curtain wall structure comprises a glass curtain wall keel 11 and a glass panel 12; the ends of the glass panel 12 are inserted into the gap between the UHPC inner veneer panel 8 and the UHPC outer veneer panel 4 and are connected to the thermal insulation layer 2; the glass curtain wall keel 11 is arranged on the inner side surface of the glass panel 12 and is connected to the main steel structure 1.

[0042] 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 outer curtain wall keel 3; the first connecting keel 6 and the second connecting keel 10 are both keel frames formed by connecting horizontal bars and vertical bars.

[0043] In this embodiment, UHPC is the abbreviation of ultra-high performance concrete, and its full name is Ultra-High Performance Concrete.

[0044] In this embodiment, the insulation layer 2 includes an insulation layer keel 2.1 and rock wool 2.2. The insulation layer keel 2.1 is a gridded frame made of aluminum alloy or steel. The rock wool 2.2 is filled in the grid of the insulation layer keel 2.1. Panels 2.3 are provided on the inner and outer sides of the rock wool 2.2. The outer panel is made of aluminum veneer, and the inner panel is made of galvanized steel.

[0045] In this embodiment, the horizontal cross-section of the middle arc-shaped plate segment 4.1 is a plurality of continuous inwardly concave arc lines, and adjacent middle arc-shaped plate segments 4.1 are connected with tongue and groove.

[0046] In this embodiment, the side panel section 4.2 is integrally formed from a multi-arc panel 4.2.1 and a side panel 4.2.2; the horizontal section of the multi-arc panel 4.2.1 is a plurality of continuous inwardly concave arc lines; the horizontal section of the side panel 4.2.2 is a straight line, covering the end of the UHPC exterior curtain wall keel 3.

[0047] In this embodiment, anchor plates 14 are arranged at intervals on the inner side surfaces of the middle arc-shaped plate segment 4.1 and the side plate segment 4.2; anchor rods 13 are arranged on the side of the anchor plates 14 close to the first connecting keel 6; and the anchor rods 13 are welded to the first connecting keel 6.

[0048] In this embodiment, the glass curtain wall keel 11 includes a vertical keel 11.1 and a horizontal keel 11.2; the horizontal section of the vertical keel 11.1 is T-shaped, and the wing plate of the vertical keel 11.1 is located on the outside; a strip groove 15 is provided on the outer surface of the vertical keel 11.1 along the vertical length; the horizontal keel 11.2 is vertically spaced between adjacent vertical keels 11.1, and the horizontal keel 11.2 is connected to the vertical keel 11.1 via a connecting plate 11.3 and a screw 11.4.

[0049] In this embodiment, the glass panel 12 is composed of a group of glass panel units 12.1; the vertical keels 11.1 are arranged corresponding to the vertical joints of the horizontally adjacent glass panel units 12.1, and the horizontal keels 11.2 are arranged corresponding to the horizontal joints of the vertically adjacent glass panel units 12.1; a pressure plate 16 is arranged at the intersection of the horizontal joints and the vertical joints; the pressure plate 16 is pressed onto the outer surfaces of the glass panel units 12.1 on all sides, and the pressure plate 16 is tied to the vertical keels 11.1 by tie rods 17; a gasket 18 is arranged between the pressure plate 16 and the glass panel units 12.1; a hole is opened in the middle of the gasket 18 to pass through the tie rod 17, and a hole is opened in the gasket 18 to pass through the tie rod 17. Sealing rods and sealant are provided on the four edges of 18; in this embodiment, the inner end of the pull rod 17 is provided with a thread, 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 is 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 surface of the pressure plate 16; a first supporting plate 19 is provided on the outer side surface of the vertical keel 11.1 corresponding to the horizontal joint; the first supporting plate 19 is located above the pull rod 17; the first supporting plate 19 is supported on the bottom of the two glass panel units 12.1 above the horizontal joint, and the outer side edge of the first supporting plate 19 does not exceed the outer side surface of the glass panel unit 12.1. The first supporting plate 19 is composed of an inner narrow plate section and an outer wide plate section; the narrow plate section is inserted into the strip groove 15, the edge of the narrow plate section is welded to the inner wall of the strip groove 15, and the wide plate section is supported on the bottom of the horizontally adjacent glass panel unit 12.1.

[0050] In this embodiment, a door opening 29 is left at the bottom of the glass curtain wall structure.

[0051] In this embodiment, outer plywood 20 is respectively provided on the outer side surface of the insulation layer keel 2.1 and along the vertical edges on both sides; the outer plywood 20 is connected to the insulation layer keel 2.1 by tension bolts 21, and the vertical edge of the outer plywood 20 close to the glass panel 12 exceeds the end face of the insulation layer keel 2.1 corresponding to the side; the part of the outer plywood 20 exceeding the insulation layer keel 2.1 is clamped on the outer side of the glass panel 12; an inner plywood 22 is provided on the end face of the insulation layer keel 2.1, located on the inner side face of the glass panel 12; the horizontal section of the inner plywood 22 is an inverted L-shape, and the longitudinal edge of the inner plywood 22 is connected to the end face of the insulation layer keel 2.1, and the horizontal edge of the inner plywood 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 plywood 22 and the outer plywood 20.

[0052] In this embodiment, the inner plywood 22 is arranged at vertical intervals; the outer plywood 20 is arranged at vertical intervals, and the outer plywood 20 and the inner plywood 22 correspond horizontally one by one; the spacing between adjacent inner plywood 22 is set corresponding to the horizontal seams of vertically adjacent glass panel units 12.1; a reinforcing plate 23 is provided on the insulation layer keel 2.1, located at the spacing between adjacent inner plywood 22 and the spacing between adjacent outer plywood 20; a second supporting plate 24 is welded to the reinforcing plate 23; the second supporting plate 24 is supported on the bottom of the glass panel unit 12.1 above the corresponding horizontal seam.

[0053] In this embodiment, the horizontal cross-section of the main steel structure 1 is arranged in a zigzag shape, and the horizontal cross-section of the UHPC exterior curtain wall keel 3 conforms 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 and connected between adjacent columns 1.1; the UHPC interior curtain wall keels 7 have a horizontal cross-section in the shape of a zigzag and are arranged between adjacent columns 1.1. The ends of the UHPC interior curtain wall keels 7 are welded to the columns 1.1 on either side; the internal connecting rods 9 connect the UHPC interior curtain wall keels 7 to the horizontal beams 1.2 accordingly.

[0054] 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-sectional shape of the middle portion of the UHPC exterior curtain wall keel 3 is an inwardly concave groove; the two ends of the UHPC exterior curtain wall keel 3 are respectively bent inward to form a folded edge; the arc-shaped plate segment 4.1 is correspondingly arranged at the groove position of the UHPC exterior curtain wall keel 3.

[0055] In this embodiment, the horizontal keel 11.2 is spliced ​​by an upper curved plate 11.2.1 and a lower curved plate 11.2.2, and the two curved plates are spliced ​​together to form a hollow rod with a circular longitudinal section; a horizontal plate 11.2.3 is arranged in the curved groove of the upper curved plate 11.2.1, near the bottom edge; the vertical section of the connecting plate 11.3 is L-shaped, and the horizontal edge of the connecting plate 11.3 is dragged 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.

[0056] In this embodiment, horizontal grooves 25 are respectively provided on the inner wall of the lower curved plate 11.2.2, near the top edges on both sides; horizontal ridges 26 are respectively provided on the outer wall of the upper curved plate 11.2.1, near the bottom edges on both sides; the horizontal ridges 26 are correspondingly snapped into the horizontal grooves 25.

[0057] The construction method of the UHPC board and glass composite curtain wall system includes the following steps.

[0058] Step 1: Conduct 3D modeling based on the architectural design to determine the circumferential alternating arrangement of the UHPC exterior curtain wall structure and the glass curtain wall structure.

[0059] Step 2: Construction of the main steel structure 1, and welding of external connecting rods 5 on the outside of the main steel structure 1, and welding of 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 broken line shape along the circumferential direction, and the horizontal beams 1.2 are connected between adjacent columns 1.1 along the vertical intervals, the external connecting rods 5 are welded and connected 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 beam 1.2.

[0060] Step 3: Construct the UHPC exterior curtain wall keel 3 and the insulation layer 2. Before constructing the UHPC exterior decorative panel 4, prepare a UHPC panel unit processing drawing according to the architectural shape, and divide the splicing units of the arc panel segment and the edge panel segment. When constructing the insulation layer keel 2.1, set outer plywood 20 on the outer surface of the insulation layer keel 2.1 and along the vertical edges on both sides, and set inner plywood 22 on the end face of the insulation layer keel 2.1.

[0061] Step 4: construct the UHPC inner curtain wall keel 7; the UHPC inner curtain wall keel 7 is welded to the columns 1.1 on both sides, and at the same time, the UHPC inner curtain wall keel 7 is welded to the inner connecting rod 9.

[0062] Step 5: Installation of the glass curtain wall structure, including installation of the glass curtain wall keel 11 and installation of the glass panel 12; During the construction of the glass curtain wall keel 11, the spacing between the vertical keels 11.1 is ≤1200mm, and the spacing between the horizontal keels 11.2 is ≤1500mm. Before installing the vertical keels 11.1, pre-threaded blind holes are pre-drilled in the strip grooves 15 of the vertical keels 11.1 and first supporting plates 19 are installed. The hole spacing error is ≤2mm. During the installation of the first supporting plates 19, ensure that the outer edge of the first supporting plates 19 does not extend beyond 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. 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 supporting plate 19. A pressing plate 16 provided 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.

[0063] Step six, installing the UHPC exterior decorative panel 4 and the UHPC interior decorative panel 8, the first connecting keel 6 is respectively arranged on the inner side of each middle curved panel segment 4.1 and each side panel segment 4.2, and the middle curved panel segment 4.1 and the side panel segment 4.2 are constructed in sequence from the middle to the sides, and the first connecting keel 6 is used to connect the middle curved 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 decorative panel 8 is spliced ​​by a group of interior panel blocks 8.1; the second connecting keel 10 is respectively arranged on the outer side of each UHPC interior decorative 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 in sequence from the middle to the sides, and 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, and the construction is completed.

[0064] In this embodiment, the interior panel block 8.1 is hooked and connected to the second connecting keel 10; the second connecting keel 10 is respectively provided on each, and a hooking plate 27 is provided at intervals, and a hooking groove 28 is provided on the interior panel block 8.1 at a position corresponding to the hooking plate 27; the hooking plate 27 is inserted into the hooking groove 28.

[0065] 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 UHPC panel and glass composite curtain wall system, comprising a main steel structure (1); characterized in that: The invention also includes a UHPC outer curtain wall structure and a glass curtain wall structure; the outer facade of the UHPC outer curtain wall structure is an inverted trapezoid, the outer facade of the glass curtain wall structure is a trapezoid, and the UHPC outer curtain wall structure and the glass curtain wall structure are alternately arranged along the circumferential direction; the UHPC outer curtain wall structure includes an insulation layer (2), a UHPC outer curtain wall keel (3) and a UHPC outer decorative panel (4) arranged in sequence from the inside to the outside; the UHPC outer curtain wall keel (3) is arranged at intervals on the outside of the main steel structure (1) and is connected to the main steel structure (1) through an external connecting rod (5); the insulation layer (2) is arranged between the main steel structure (1) and the UHPC outer curtain wall keel (3); the UHPC outer curtain wall keel (3 ... in sequence from the inside to the outside The C exterior decorative panel (4) is arranged on the outside of the UHPC exterior curtain wall keel (3), and a first connecting keel (6) is arranged on the inner side surface of the UHPC exterior decorative panel (4); the UHPC exterior decorative panel (4) is connected to the UHPC exterior curtain wall keel (3) via the first connecting keel (6); the UHPC exterior decorative panel (4) includes a middle arc-shaped plate segment (4.1) and a side plate segment (4.2); the middle arc-shaped plate segment (4.1) has a group and is continuously arranged along the inner concave arc line; the side plate segment (4.2) has two groups and is respectively arranged on both sides of the middle arc-shaped plate segment (4.1); one end of the side plate segment (4.2) is connected to the middle arc-shaped plate segment (4.1), and the side plate segment (4.2) The other end of the UHPC inner curtain wall keel (3) is bent inwardly and covers the end of the UHPC outer curtain wall keel (3); a UHPC inner curtain wall structure is provided on the inner side of the main steel structure (1) at a position corresponding to the UHPC outer curtain wall structure; the UHPC inner curtain wall structure includes a UHPC inner curtain wall keel (7) and a UHPC interior panel (8); the UHPC inner curtain wall keel (7) is connected to the main steel structure (1) through an inner connecting rod (9); the UHPC interior panel (8) is provided on the inner side of the UHPC inner curtain wall keel (7), and the two ends of the UHPC interior panel (8) are bent outwardly and cover the end of the UHPC inner curtain wall keel (7); on the outer side of the UHPC interior panel (8) A second connecting keel (10) is provided on the side surface; the UHPC interior panel (8) is connected to the UHPC interior curtain wall keel (7) via the second connecting keel (10); a gap is left between the end of the UHPC interior panel (8) and the end of the UHPC exterior panel (4); the glass curtain wall structure comprises 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 provided on the inner side surface of the glass panel (12), and the glass curtain wall keel (11) is connected to the main steel structure (1).

2. The UHPC panel and glass composite curtain wall system according to claim 1, characterized in that: 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 outer curtain wall keel (3).

3. The UHPC panel and glass composite curtain wall system according to claim 1, characterized in that: The thermal insulation layer (2) comprises a thermal insulation layer keel (2.1) and rock wool (2.2); the thermal insulation layer keel (2.1) is a grid frame made of aluminum alloy or steel; the rock wool (2.2) is filled in the grid of the thermal insulation layer keel (2.1); and panels (2.3) are respectively provided on the inner and outer side surfaces of the rock wool (2.2).

4. The UHPC panel and glass composite curtain wall system according to claim 1, characterized in that: The horizontal cross-section of the intermediate arcuate plate segment (4.1) is a plurality of continuously inwardly concave arc lines, and adjacent intermediate arcuate plate segments (4.1) are connected by tongue-and-groove; anchor plates (14) are arranged at intervals on the inner side surface of the UHPC exterior panel (4); an anchor rod (13) is arranged on a side of the anchor plate (14) close to the first connecting keel (6); and the anchor rod (13) is welded to the first connecting keel (6).

5. The UHPC panel and glass composite curtain wall system according to claim 1, characterized in that: The side plate section (4.2) is formed integrally from a multi-arc plate (4.2.1) and a side plate (4.2.2); the multi-arc plate ( The horizontal section of the side panel (4.2.2) is a straight line, covering the end of the UHPC outer curtain wall keel (3).

6. The UHPC panel and glass composite curtain wall system according to claim 1, characterized in that: The glass curtain wall keel (11) comprises a vertical keel (11.1) and a horizontal keel (11.2); the horizontal section of the vertical keel (11.1) is T-shaped, and the wing plate of the vertical keel (11.1) is located on the outside; a strip groove (15) is provided on the outer surface of the vertical keel (11.1) along the vertical length; the horizontal keel (11.2) is arranged between adjacent vertical keels (11.1) at intervals along the vertical direction, and the horizontal keel (11.2) is connected to the vertical keel (11.1) via a connecting plate (11.3) and a screw (11.4).

7. The UHPC panel and glass composite curtain wall system according to claim 6, characterized in that: The glass panel (12) is formed by splicing a group of glass panel units (12.1); the vertical keel (11.1) is arranged correspondingly to the vertical joints of the horizontally adjacent glass panel units (12.1); the horizontal keel (11.2) is arranged correspondingly to the horizontal joints of the vertically adjacent glass panel units (12.1); a pressure plate (16) is arranged at the intersection of the horizontal joint and the vertical joint; the pressure plate (16) is pressed onto the outer surface of the glass panel units (12.1) on all sides, and the pressure plate (16) is tied to the vertical keel (11.1) through a tie rod (17); A gasket (18) is provided between the panel units (12.1); a hole for passing the tie rod (17) is provided in the middle of the gasket (18), and sealing rods and sealant are provided on the edges of the gasket (18); a first supporting plate (19) is provided on the outer surface of the vertical keel (11.1) corresponding to the horizontal joint; the first supporting plate (19) is located above the tie rod (17); the first supporting plate (19) is supported on 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).

8. The UHPC panel and glass composite curtain wall system according to claim 3, characterized in that: An outer plywood (20) is provided on the outer side of the thermal insulation layer keel (2.1) and along the vertical edges on both sides; the outer plywood (20) is connected to the thermal insulation layer keel (2.1) by tension bolts (21), and the vertical edge of the outer plywood (20) close to the glass panel (12) exceeds the end face of the thermal insulation layer keel (2.1) corresponding to one side; the portion of the outer plywood (20) exceeding the thermal insulation layer keel (2.1) is clamped on the outer side of the glass panel (12); an inner plywood (22) is provided on the end face of the thermal insulation layer keel (2.1) and located on the inner side face of the glass panel (12); the horizontal section of the inner plywood (22) is in an inverted L-shape, and the longitudinal edge of the inner plywood (22) is connected to the end face of the thermal insulation layer keel (2.1), and the transverse edge of the inner plywood (22) is clamped on the inner side of the glass panel (12).

9. A construction method for the UHPC board and glass composite curtain wall system according to any one of claims 1 to 8, characterized in that: The steps are as follows: Step 1: Conduct 3D modeling based on the architectural design to determine the circumferential alternating layout of the UHPC exterior curtain wall structure and the glass curtain wall structure; Step 2: constructing the main steel structure (1), and welding the outer connecting rod (5) on the outer side of the main steel structure (1), and welding the inner connecting rod (9) on the inner side of the main steel structure (1); Step 3: construct the UHPC exterior curtain wall keel (3) and insulation layer (2); Step 4: construct the UHPC inner curtain wall keel (7); Step 5, installation of the glass curtain wall structure, including installation of the glass curtain wall keel (11) and installation of the glass panel (12); Step 6: Install the UHPC exterior panels (4) and UHPC interior panels (8), and the construction is completed.

10. The construction method of the UHPC board and glass composite curtain wall system according to claim 9, characterized in that: During the construction of the glass curtain wall keel (11), the spacing of the vertical keels (11.1) is ≤1200 mm, and the spacing of the horizontal keels (11.2) is ≤1500 mm; before the vertical keel (11.1) is installed, a threaded blind hole is pre-set in the strip groove (15) of the vertical keel (11.1) and a first supporting plate (19) is provided. When the first supporting plate (19) is installed, it is ensured that the outer edge of the first supporting plate (19) does not extend beyond the outer surface of the glass panel to be installed; When the glass panel (12) is installed, a vacuum suction cup is used to lift the glass panel unit (12.1) and place it on the first supporting plate (19), and a pressing plate (16) provided with a pull rod is used to press the glass panel unit (12.1) onto the glass panel unit (12.1), and the glass panel unit (12.1) at the edge is connected to the insulation layer (2).

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