Staggered layered externally-hung curtain wall system and construction method thereof

Abstract

The invention discloses a staggered layered external hanging curtain wall system and a construction method thereof, the system comprises a first-layer staggered layered external hanging curtain wall system and a standard-layer staggered layered external hanging curtain wall system which are arranged on the outer side of a concrete main body, the first-layer staggered layered external hanging curtain wall system and the standard-layer staggered layered external hanging curtain wall system are structurally separated through a steel canopy and are vertically arranged in a staggered mode, and the standard-layer system is located on the outer side of the first-layer system. The first-layer system comprises a keel and a glass panel which are connected with the ground and the steel canopy; the standard layer system comprises a keel and a glass panel which are connected with the floor slab and the steel canopy or the lower layer keel. The steel canopy is integrated with a groove for inserting the upper and lower layer panels, and is provided with a thermal insulation layer. Through the integrated design and the staggered layered structure, the problem of leakage at the joint of a traditional curtain wall and a canopy is effectively solved, a heat bridge path is cut off, the stress performance is improved, error accumulation is avoided, meanwhile, the vertical face layers are enriched, and comprehensive improvement of safety, energy conservation, attractiveness and construction convenience of a curtain wall system is achieved.

Description

Technical Field

[0001] This invention belongs to the field of building engineering technology, specifically a staggered layered external curtain wall system and its construction method. Background Technology

[0002] As the external envelope of modern buildings, building curtain walls not only need to meet the requirements of architectural aesthetics, but also need to have good safety, airtightness, thermal insulation, and ease of construction. In traditional curtain wall designs, the ground floor and standard floors usually adopt the same or similar construction methods and are directly installed on the main structure.

[0003] However, this traditional design has many inherent flaws: 1. Conflict between function and structure on the ground floor: The ground floor of a building usually needs to accommodate entrances, canopies, and other facilities. Traditionally, the curtain wall and canopy are designed and installed as two independent systems, leading to complex joint treatment and making them vulnerable to leaks. Furthermore, the structural support of the canopy and the curtain wall keel system often interfere with each other, increasing design and construction difficulty. 2. Weak thermal performance and cold bridging issues: The supporting keel of traditional curtain walls usually runs directly from the interior to the exterior, making the metal keel a "highway" for heat transfer and creating significant cold bridges. This is particularly serious at the connection points between the ground floor and the floor slab, canopy, and other structures, leading to energy loss and even indoor condensation, affecting user comfort and building energy consumption. 3. Structural stress concentration: The curtain wall structure needs to adapt to inter-story displacement and wind load deformation of the main structure. In traditional integrated curtain wall designs, deformation stress is transmitted along the entire facade, especially at inter-story connections, easily causing stress concentration and affecting the long-term safety and durability of the curtain wall. 4. Monotonous facade design and cumulative construction errors: Standardized curtain wall designs make it difficult to achieve a rich sense of facade layering. In addition, in high-rise buildings, vertical errors in curtain wall installation accumulate layer by layer, adversely affecting the positioning accuracy of the bottommost components. Summary of the Invention

[0004] The purpose of this invention is to provide a staggered layered external curtain wall system and its construction method, which aims to solve the technical problems existing in traditional designs, such as complex and easily leaking joints between the first-floor curtain wall and the canopy, high energy consumption due to cold bridges formed by metal keel, structural stress concentration affecting safety and durability, monotonous facade design, and the accumulation of construction errors layer by layer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] A staggered layered external curtain wall system is installed on the outside of a concrete main body; concrete columns are spaced apart on the outside of the concrete main body near the edge; it also includes a first-floor staggered layered external curtain wall system and a standard-floor staggered layered external curtain wall system. A steel canopy is installed between adjacent concrete columns, at the midpoint between the first floor slab and the ground; the outer end of the steel canopy extends beyond the outer side of the concrete column, while the inner end of the steel canopy does not extend beyond the inner side of the concrete column. The first-floor staggered layered external curtain wall system is installed between the steel canopy and the ground, and includes a first-floor curtain wall keel and a first-floor glass panel. The first-floor curtain wall keel is located between adjacent concrete columns, and the bottom of the first-floor curtain wall keel is connected to the ground through a bottom connecting component, while the top of the first-floor curtain wall keel is connected to the steel canopy. The first-floor glass panel is installed on the outside of the first-floor curtain wall keel, with the upper end of the first-floor glass panel connected to the steel canopy and the lower end of the first-floor glass panel connected to the bottom connecting component. Column exterior panels are installed on the outside of the concrete columns, at the section located between the steel canopy and the ground. The left and right sides of the column exterior panels are bent inwards and connected to the first-floor curtain wall keel. The standard-floor staggered layered external curtain wall system is installed between adjacent floor slabs of the concrete main structure and between the floor slabs and the top of the steel canopy. This standard-floor staggered layered external curtain wall system is vertically offset from the first-floor staggered layered external curtain wall system, and is located outside the first-floor staggered layered external curtain wall system. The standard-floor staggered layered external curtain wall system includes standard-floor curtain wall keels and standard-floor glass panels. The standard-floor curtain wall keels are located between adjacent concrete columns, and the bottom of the standard-floor curtain wall keels is connected to the steel canopy or to the standard-floor curtain wall keels of the next floor. The upper part of the standard-floor curtain wall keels is connected to the concrete structure via upper connecting components. The main structure is connected to the soil; the joints of the curtain wall keel of adjacent standard floors are horizontally aligned with the floor slab; the standard floor glass panels are installed on the outside of the standard floor curtain wall keel, and the lower end of the standard floor glass panels is connected to the top of the steel canopy or the glass panel of the next standard floor; a sunshade is installed on the outside of the standard floor glass panels, corresponding to the horizontal joints of the adjacent standard floor glass panels; a top sealing plate is installed between the floor slab and the staggered layered external curtain wall system, above the upper connecting component; a bottom sealing plate is installed between the floor slab and the staggered layered external curtain wall system, below the upper connecting component; fireproof rock wool is installed in the cavity between the top sealing plate and the bottom sealing plate.

[0007] Preferably, the concrete column vertically penetrates the concrete body; the concrete body also includes side beams; a set of side beams is arranged vertically between each adjacent concrete column; the floor slab is erected on top of the side beams; and the upper connecting assembly is arranged on the side beams.

[0008] Preferably, the steel canopy includes a cantilevered steel frame and an exterior decorative aluminum panel; the cantilevered steel frame is positioned between adjacent concrete columns, with its inner side connected to the top of the first-floor curtain wall keel, its outer side extending beyond the outer surface of the concrete columns, and its inner side not exceeding the inner surface of the concrete columns; the cantilevered steel frame includes steel beams and a main body; the main body of the cantilevered steel frame is positioned between adjacent concrete columns, with both sides of the main body connected to the concrete columns respectively; in the main body of the cantilevered steel frame... A top groove is provided at the top, near the middle position, and a bottom groove is provided at the bottom, near the inner end, of the cantilevered steel frame body; the lower end of the standard floor glass panel is inserted into the top groove; the upper end of the first floor glass panel is inserted into the bottom groove; the steel beam passes through the cantilevered steel frame body, and both ends of the steel beam are fixed to the concrete column through beam-column connecting components; the outer decorative aluminum plate is wrapped around the cantilevered steel frame body, and a first floor decorative light is provided on the top of the outer decorative aluminum plate, outside the standard floor glass panel.

[0009] Preferably, the steel beam is made of rectangular cross-section steel; the beam-column connection assembly includes a vertical connecting plate, a horizontal insert, and tie bolts; the horizontal insert is connected to the side of the concrete column through the vertical connecting plate and the first tie bolt, the horizontal insert is inserted into the cavity end of the steel beam, and is fixed to the steel beam by the tie bolts.

[0010] Preferably, a set of bottom connecting components is arranged horizontally at intervals on the ground below the first-floor curtain wall keel; the bottom connecting component includes a bottom embedded plate, a vertical insert, and a slot; the bottom embedded plate is pre-embedded in the concrete slab of the ground, and a vertical anchor bar is provided at the bottom of the bottom embedded plate; the vertical insert is located at the top of the bottom embedded plate and is inserted into the column of the first-floor curtain wall keel; two connecting plates are arranged longitudinally at intervals on the bottom embedded plate, located outside the vertical insert; each connecting plate is strip-shaped and extends horizontally; the slot has a U-shaped cross-section and is located in the two connecting plates; the lower end of the first-floor glass panel is inserted into the slot.

[0011] Preferably, corner connectors are vertically spaced at the corner positions on both sides of the outer side of the concrete column; each corner connector includes a corner plate and a corner reinforcement bar; the corner plate is attached to the corner of the concrete column; the corner reinforcement bar is pre-embedded in the concrete column, and the outer end of the corner reinforcement bar is connected to the corner plate; a vertical groove is provided on the outer side of the corner plate; a decorative panel keel is provided on the inner side of the column exterior decorative panel; the column of the decorative panel keel is inserted into the vertical groove and fixed to the vertical groove by connecting bolts; the column exterior decorative panel is installed on the outside of the decorative panel keel.

[0012] Preferably, an outer pressure cover is provided at the joint of the glass panels of adjacent standard floors in both vertical and horizontal directions; the outer pressure cover is connected to the curtain wall keel of the corresponding standard floor by bolts; the sunshade is connected to the outside of the horizontally arranged outer pressure cover; and a standard floor decorative light is provided on the top of the sunshade.

[0013] Preferably, a set of upper connecting components is arranged at horizontal intervals on the concrete body; the upper connecting component includes a vertical embedded plate and a clamping plate; the vertical embedded plate is pre-embedded on the outer side of the concrete body, and a horizontal anchor bar is provided at the bottom of the vertical embedded plate; there are two clamping plates, which are arranged at intervals on the outer side of the vertical embedded plate; the two clamping plates are respectively clamped on both sides of the column of the standard floor curtain wall keel, and a second tie bolt is pulled between the two clamping plates; a horizontal connecting rod is provided between the horizontally adjacent upper connecting components.

[0014] Preferably, the vertically adjacent standard floor curtain wall keels are connected by plug-in short rods; the plug-in short rods are correspondingly plugged into the columns of the standard floor curtain wall keels on both sides; the second tie bolt passes through the lower part of the plug-in short rod.

[0015] A construction method for a staggered, layered external curtain wall system includes the following steps: Step 1: Construction of the concrete main structure; Step 2: Installation of the staggered, layered external curtain wall system on the first floor; Step 1: Install the bottom connection components; Step II, Install the first-floor curtain wall keel: Set the first-floor curtain wall keel between adjacent concrete columns; Step 3, Install the first-floor glass panel: Install the first-floor glass panel on the outside of the first-floor curtain wall keel; Step 3: Installation of the steel canopy; Step 4, Install column exterior panels: Install column exterior panels on the outside of the concrete columns, at the location between the steel canopy and the ground; Step 5: Installation of the standard floor staggered layered external curtain wall system, the specific method is as follows: Step 1, Install the upper connection components: Set a set of upper connection components at transverse intervals on the outer side of the concrete main body; Step 2, Install the standard floor curtain wall keel: The standard floor curtain wall keel is set between adjacent concrete columns, and its bottom is connected to the top of the steel canopy or to the standard floor curtain wall keel of the next floor. Step 3: Fix the upper part of the standard floor curtain wall keel to the concrete main body using the upper connecting components; Step 4, Install standard floor glass panels: Install the standard floor glass panels on the outside of the standard floor curtain wall keel; connect the lower end of the standard floor glass panels to the top of the steel canopy or the next standard floor glass panel. Step 6, Install sealing plates and fireproof rock wool: First, install the bottom sealing plate between the floor slab and the staggered layered external curtain wall system, below the upper connecting components; then, install fireproof rock wool on top of the bottom sealing plate, between the top of the floor slab and the staggered layered external curtain wall system, and then install the top sealing plate between the top of the floor slab and the staggered layered external curtain wall system, above the upper connecting components. Step 7: Install sunshades on the outside of the standard floor glass panels, corresponding to the horizontal joints of adjacent standard floor glass panels.

[0016] Compared with the prior art, the present invention has the following features and beneficial effects.

[0017] 1. This invention achieves the organic integration of three major systems by using a steel canopy as a structural dividing unit between the first-floor curtain wall and the standard-floor curtain wall. The upper end of the first-floor glass panel and the lower end of the standard-floor glass panel are respectively inserted into the bottom groove and top groove of the steel canopy, forming a complete and continuous watertight defense line. This fundamentally solves the leakage problem at the joint between the canopy and the curtain wall in traditional designs, and its integrated design eliminates the hidden danger of leakage.

[0018] 2. This invention boasts superior thermal insulation performance, effectively eliminating cold bridges. The vertical and horizontal insulation layers inside the steel canopy, together with the glass panels of the first and standard floors, form a continuous insulation barrier, completely isolating the indoor and outdoor spaces. The curtain wall keel of the first floor and the curtain wall keel of the standard floors are installed independently and fixed at different elevations, avoiding the keel running through the entire building facade, significantly cutting off the "cold bridge" formed by the metal keel, and greatly improving the building's energy efficiency.

[0019] 3. The "staggered" layered design of this invention ensures that the loads and deformations of the first-floor curtain wall structure and the standard-floor curtain wall structure are independent, resulting in a rational stress system and high safety and durability. The stress of each floor is directly transferred to the main structure through the connecting components of that floor (such as bottom and upper connecting components), avoiding the vertical superposition and transmission of stress. This significantly reduces stress concentration at inter-floor nodes, making the curtain wall structure more resilient under wind loads and earthquakes. The joints of the standard-floor curtain wall keel correspond horizontally to the floor slab and are connected with short plug-in rods, conforming to the deformation laws of building structures and further ensuring the reliability of the connections.

[0020] 4. In this invention, the standard floor curtain wall is located outside the first-floor curtain wall, naturally creating a three-dimensional and layered facade, which has the advantages of rich facade layers and enhanced architectural aesthetic value. The use of external sunshades, decorative lights, and column exterior panels in this system, while fulfilling their functions, greatly enriches the facade details and nighttime lighting effects, enhancing the overall aesthetic value of the building.

[0021] 5. In this invention, the curtain walls of the first floor and standard floors can be constructed independently in stages without interference. This design isolates the vertical installation errors of high-rise buildings within a single floor or section, avoiding the accumulation of errors layer by layer and improving overall installation accuracy. Modular connection components, such as bottom connection components, upper connection components, and beam-column connection components, enable factory production and on-site assembly construction, improving construction efficiency and quality consistency. This invention, through an innovative "staggered double-layer curtain wall structure system," successfully solves a series of key technical challenges in waterproofing, insulation, structure, and aesthetics of traditional curtain walls, providing a high-performance, highly reliable, and convenient building envelope solution. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Figure 1 This is a structural schematic diagram of the staggered layered external curtain wall system of the present invention.

[0024] Figure 2 This is a schematic diagram of the connection structure between the first-floor staggered layered external curtain wall system and the ground in this invention.

[0025] Figure 3 This is a schematic diagram of the steel canopy structure in this invention.

[0026] Figure 4 This is a schematic diagram of the structure in this invention where the upper part of the standard floor curtain wall keel is connected to the concrete main body via an upper connecting component.

[0027] Figure 5 This is a schematic diagram of the connection node structure of the standard floor curtain wall keel in this invention.

[0028] Figure 6 This is a schematic diagram of the structure of the concrete column with an external decorative panel.

[0029] Figure 7 This is a schematic diagram of the connection structure between the steel beam and the concrete column in this invention.

[0030] Figure 8 This is a schematic diagram of the connection structure between the first-layer glass panel and the ground in this invention.

[0031] Attached reference numerals: 1 – Concrete main body, 1.1 – Concrete column, 1.2 – Floor slab, 1.3 – Edge beam, 2 – Ground, 3 – Steel canopy, 3.1 – Cantilevered steel frame, 3.2 – Exterior decorative aluminum panel, 3.1.1 – Steel beam, 3.1.2 – Cantilevered steel frame main body, 4 – First floor curtain wall keel, 5 – First floor glass panel, 6 – Bottom connecting component, 6.1 – Bottom embedded plate, 6.2 – Vertical insert, 6.3 – Slot, 6.4 – Vertical anchor bar, 6.5 – Connecting plate, 7 – Column exterior panel, 8 – Standard floor curtain wall keel, 9 – Standard floor glass panel, 10 – Upper connecting component, 10.1 – Vertical embedded plate, 10.2 – Clamping plate, 10.3 – Horizontal anchor bar, 10.4 – Second 11 - Sunshade plate, 12 - Top sealing plate, 13 - Bottom sealing plate, 14 - Fireproof rock wool, 15 - Bottom groove, 16 - Top groove, 17 - Beam-column connection assembly, 17.1 - Vertical connection plate, 17.2 - Horizontal insert, 17.3 - Tie bolt, 17.4 - First tie bolt, 18 - Corner connector, 18.1 - Corner plate, 18.2 - Corner embedded reinforcement, 18.3 - Vertical slot, 18.4 - Connecting bolt, 19 - Outer pressure cover, 20 - Standard floor decorative light, 21 - Horizontal connecting rod, 22 - Inserted short rod, 23 - Vertical insulation layer, 24 - Horizontal insulation layer, 25 - Bottom decorative strip, 26 - First floor decorative light, 26 - Finishing keel. Detailed Implementation

[0032] like Figure 1-8 As shown, this staggered layered external curtain wall system is set on the outside of the concrete main body 1; concrete columns 1.1 are spaced apart on the outside of the concrete main body 1 near the edge; the feature is that it also includes a first-floor staggered layered external curtain wall system and a standard-floor staggered layered external curtain wall system. A steel canopy 3 is installed between adjacent concrete columns 1.1, at the midpoint between the first floor slab 1.2 and the ground 2; the outer end of the steel canopy 3 extends beyond the outer side of the concrete column 1.1, and the width of the extended part is not less than 1m, and the inner end of the steel canopy 3 does not extend beyond the inner side of the concrete column 1.1. The first-floor staggered layered external curtain wall system is set between the steel canopy 3 and the ground 2, and includes a first-floor curtain wall keel 4 and a first-floor glass panel 5. The first-floor curtain wall keel 4 is located between adjacent concrete columns 1.1, and the bottom of the first-floor curtain wall keel 4 is connected to the ground 2 through a bottom connecting component 6, while the top of the first-floor curtain wall keel 4 is connected to the steel canopy 3. The first-floor glass panel 5 is installed on the outside of the first-floor curtain wall keel 4, with the upper end of the first-floor glass panel 5 connected to the steel canopy 3 and the lower end of the first-floor glass panel 5 connected to the bottom connecting component 6. Column exterior panels 7 are installed on the outside of the concrete columns 1.1, located between the steel canopy 3 and the ground. The left and right sides of the column exterior panels 7 are bent inwards and connected to the first-floor curtain wall keel 4. The standard-floor staggered layered external curtain wall system is installed between adjacent floor slabs 1.2 of the concrete main body 1 and between floor slabs 1.2 and the top of the steel canopy 3; the standard-floor staggered layered external curtain wall system is vertically staggered from the first-floor staggered layered external curtain wall system, and the standard-floor staggered layered external curtain wall system is located outside the first-floor staggered layered external curtain wall system; the standard-floor staggered layered external curtain wall system includes a standard-floor curtain wall keel 8 and a standard-floor glass panel 9; the standard-floor curtain wall keel 8 is located between adjacent concrete columns 1.1, and the bottom of the standard-floor curtain wall keel 8 is connected to the steel canopy 3 or to the next standard-floor curtain wall keel 8, and the upper part of the standard-floor curtain wall keel 8 is connected to the concrete main body 1 through the upper connecting component 10; The joints of the adjacent standard floor curtain wall keel 8 are horizontally aligned with the floor slab 1.2; the standard floor glass panel 9 is installed on the outside of the standard floor curtain wall keel 8, and the lower end of the standard floor glass panel 9 is connected to the top of the steel canopy 3 or the next standard floor glass panel 9; a sunshade 11 is provided on the outside of the standard floor glass panel 9 at the horizontal joint corresponding to the adjacent standard floor glass panel 9; a top sealing plate 12 is provided between the floor slab 1.2 and the staggered layered external curtain wall system, above the upper connecting component 10; a bottom sealing plate 13 is provided between the floor slab 1.2 and the staggered layered external curtain wall system, below the upper connecting component 10; fireproof rock wool 14 is provided in the cavity between the top sealing plate 12 and the bottom sealing plate 13.

[0033] In this embodiment, the direction perpendicular to the curtain wall surface is the longitudinal direction.

[0034] In this embodiment, the concrete column 1.1 vertically penetrates the concrete body 1; the concrete body 1 also includes a side beam 1.3; a set of side beams 1.3 is arranged vertically between each adjacent concrete column 1.1; the floor slab 1.2 is erected on the top of the side beam 1.3; the upper connecting component 10 is arranged on the side beam 1.3.

[0035] In this embodiment, the steel canopy 3 includes a cantilevered steel frame 3.1 and an external decorative aluminum panel 3.2; the cantilevered steel frame 3.1 is positioned between adjacent concrete columns 1.1, and the inner side of the cantilevered steel frame 3.1 is connected to the top of the first-floor curtain wall keel 4, the outer side of the cantilevered steel frame 3.1 extends beyond the outer side of the concrete column 1.1, and the inner side of the cantilevered steel frame 3.1 does not extend beyond the inner side of the concrete column 1.1; the cantilevered steel frame 3.1 includes a steel beam 3.1.1 and a cantilevered steel frame body 3.1.2; the cantilevered steel frame body 3.1.2 is positioned between adjacent concrete columns 1.1, and both sides of the cantilevered steel frame body 3.1.2 are connected to the concrete columns 1.1 respectively; in the cantilevered steel frame A top groove 16 is provided at the top of the main body 3.1.2 near the middle position, and a bottom groove 15 is provided at the bottom of the cantilevered steel frame main body 3.1.2 near the inner end position; the lower end of the standard floor glass panel 9 is inserted into the top groove 16; the upper end of the first floor glass panel 5 is inserted into the bottom groove 15; the steel beam 3.1.1 passes through the cantilevered steel frame main body 3.1.2, and both ends of the steel beam 3.1.1 are fixed to the concrete column 1.1 through the beam-column connecting assembly 17; the outer decorative aluminum plate 3.2 is wrapped around the cantilevered steel frame main body 3.1.2, and a first floor decorative light 26 is provided on the top of the outer decorative aluminum plate 3.2, located outside the standard floor glass panel 9.

[0036] In this embodiment, a vertical insulation layer 23 is provided along the horizontal length of the cantilevered steel frame 3.1, located between the top groove 16 and the bottom of the cantilevered steel frame 3.1; a horizontal insulation layer 24 is laid along the horizontal length of the bottom of the cantilevered steel frame 3.1, inside the vertical insulation layer 23; the arrangement of the vertical insulation layer 23 and the horizontal insulation layer 24 isolates the indoor space from the outdoor space through the first-floor glass panel 5, the horizontal insulation layer 24, the vertical insulation layer 23 and the standard-floor glass panel 9, thereby enhancing the insulation performance of the indoor space.

[0037] In this embodiment, the steel beam 3.1.1 is made of rectangular cross-section steel; the beam-column connection assembly 17 includes a vertical connecting plate 17.1, a horizontal insert 17.2, and a tie bolt 17.3; the horizontal insert 17.2 is connected to the side of the concrete column 1.1 through the vertical connecting plate 17.1 and the first tie bolt 17.4, and the horizontal insert 17.2 is inserted into the cavity end of the steel beam 3.1.1 and fixed to the steel beam 3.1.1 by the tie bolt 17.3.

[0038] In this embodiment, a set of bottom connecting components 6 are arranged horizontally at intervals on the ground below the first-floor curtain wall keel 4. The bottom connecting components 6 include a bottom embedded plate 6.1, a vertical insert 6.2, and a slot 6.3. The bottom embedded plate 6.1 is pre-embedded in the concrete slab of the ground, and a vertical anchor bar 6.4 is provided at the bottom of the bottom embedded plate 6.1. The vertical insert 6.2 is located at the top of the bottom embedded plate 6.1 and is inserted into the column of the first-floor curtain wall keel 4. Two connecting plates 6.5 are arranged longitudinally at intervals on the bottom embedded plate 6.1, located outside the vertical insert 6.2. Each connecting plate 6.5 is strip-shaped and extends horizontally. The slot 6.3 has a U-shaped cross-section and is located in the two connecting plates 6.5. The lower end of the first-floor glass panel 5 is inserted into the slot 6.3. The inner and outer sides of the slot 6.3 are welded to two connecting plates 6.5 respectively, and a bottom decorative strip 25 is provided on the outer side of the slot 6.3.

[0039] In this embodiment, corner connectors 18 are vertically spaced at the corner positions on both sides of the concrete column 1.1. Each corner connector 18 includes a corner plate 18.1 and a corner reinforcing bar 18.2. The corner plate 18.1 is attached to the corner of the concrete column 1.1. The corner reinforcing bar 18.2 is embedded in the concrete column 1.1, and its outer end is connected to the corner plate 18.1. A vertical groove 18.3 is provided on the outer surface of the corner plate 18.1. A decorative panel keel 27 is provided on the inner side of the column exterior decorative panel 7. The column of the decorative panel keel 27 is inserted into the vertical groove 18.3 and fixed to the vertical groove 18.3 by connecting bolts 18.4. The column exterior decorative panel 7 is installed on the outside of the decorative panel keel 27. The column exterior decorative panel 7 is connected to the outside of the decorative panel keel 27 by corner brackets and bolts.

[0040] In this embodiment, an outer pressure cover 19 is provided at the joint of the glass panels 9 of adjacent standard floors in both vertical and horizontal directions; the outer pressure cover 19 is connected to the curtain wall keel 8 of the corresponding standard floor by bolts; the bolts are arranged at intervals along the long axis of the outer pressure cover 19; the sunshade 11 is connected to the outside of the horizontally arranged outer pressure cover 19; a standard floor decorative light 20 is provided on the top of the sunshade 11.

[0041] In this embodiment, the upper connecting assembly 10 is arranged in a set at intervals along the horizontal direction on the concrete body 1; the upper connecting assembly 10 includes a vertical embedded plate 10.1 and a clamping plate 10.2; the vertical embedded plate 10.1 is pre-embedded on the outer side of the concrete body 1, and a horizontal anchor bar 10.3 is provided at the bottom of the vertical embedded plate 10.1; there are two clamping plates 10.2, which are arranged at intervals on the outer side of the vertical embedded plate 10.1; the two clamping plates 10.2 are respectively clamped on both sides of the column of the standard floor curtain wall keel 8, and a second tie bolt 10.4 is pulled between the two clamping plates 10.2; a horizontal connecting rod 21 is provided between the horizontally adjacent upper connecting assemblies 10.

[0042] In this embodiment, the vertically adjacent standard floor curtain wall keel 8 are connected by a plug-in short rod 22; the plug-in short rod 22 is plugged into the columns of the adjacent standard floor curtain wall keel 8; the second tie bolt 10.4 passes through the lower part of the plug-in short rod 22.

[0043] The construction method for this staggered, layered external curtain wall system includes the following steps.

[0044] Step 1: Construction of concrete main body 1; Construction of concrete columns: Concrete columns 1.1 are installed at intervals on the outside of the designed concrete main body 1, near the edge; the concrete columns 1.1 vertically penetrate the concrete main body.

[0045] A corner connector 18, including a corner plate 18.1 and a corner reinforcing bar 18.2, is pre-embedded at the corner position of the concrete column 1.1 to facilitate the subsequent installation of the column exterior panel 7.

[0046] Construction of edge beams and floor slabs: Edge beams 1.3 are set vertically between each adjacent concrete column, and floor slabs 1.2 are erected on top of edge beams 1.3 to ensure accurate positioning of edge beams 1.3 and floor slabs 1.2 for installation of upper connecting components 10.

[0047] A vertical embedded plate 10.1 for the upper connecting component 10 is pre-embedded on the outside of the concrete main body 1. A horizontal anchor bar 10.3 is set on the vertical embedded plate 10.1 to ensure a firm pre-embedding.

[0048] Ground construction: Pour a concrete slab at the ground level and pre-embed the bottom embedded plate 6.1 of the bottom connecting component. The bottom embedded plate 6.1 is equipped with vertical anchor bars 6.4 to ensure a firm connection with the ground.

[0049] Step 2: Installation of the staggered, layered external curtain wall system on the first floor; Step 1: Install the bottom connecting components. On the ground below the first-floor curtain wall keel 4, install a set of bottom connecting components 6 at horizontal intervals. Each bottom connecting component 6 includes a bottom embedded plate 6.1, a vertical insert 6.2, and a slot 6.3. The bottom embedded plate 6.1 is pre-embedded in the ground concrete slab; check its position and levelness. Then, place the vertical insert 6.2 on top of the bottom embedded plate 6.1, ensuring the vertical insert 6.2 is vertical. The slot 6.3 has a U-shaped cross-section and is positioned between two connecting plates 6.5, which are welded to the bottom embedded plate. The slot 6.3 is used to insert the lower end of the first-floor glass panel 5, and a bottom decorative strip 25 is provided on the outer side.

[0050] Step II, Install the first-floor curtain wall keel 4: Set the first-floor curtain wall keel 4 between adjacent concrete columns 1.1; insert the bottom of the first-floor curtain wall keel 4 into the vertical insert 6.2 of the bottom connecting component 6 to ensure that the first-floor curtain wall keel 4 is vertical and the spacing meets the design requirements.

[0051] Step III, Install the first-layer glass panel: Install the first-layer glass panel 5 on the outside of the first-layer curtain wall keel 4; insert the lower end of the first-layer glass panel 5 into the slot 6.3 of the bottom connecting component 6; check the verticality and sealing of the glass panel, and fill the gaps with sealant if necessary.

[0052] Step 3, installation of steel canopy 3; Installation of the cantilevered steel frame: A cantilevered steel frame 3.1 is installed between adjacent concrete columns 1.1, at a height close to the midpoint between the first-floor slab and the ground. The cantilevered steel frame 3.1 includes a steel beam 3.1.1 and a cantilevered steel frame body 3.1.2. First, the cantilevered steel frame body 3.1.2 is placed between adjacent concrete columns, ensuring that both sides are connected to the concrete columns. The top of the cantilevered steel frame body 3.1.2 has a top groove 16, and the bottom has a bottom groove 15.

[0053] Next, install steel beam 3.1.1, which is typically made of rectangular cross-section steel and passes through the cantilevered steel frame body 3.1.2. Both ends of steel beam 3.1.1 are fixed to concrete column 1.1 via beam-column connection assembly 17. Beam-column connection assembly 17 includes a vertical connecting plate 17.1, a horizontal insert 17.2, and tie bolts 17.3. The horizontal insert 17.2 is connected to the side of concrete column 1.1 via the vertical connecting plate 17.1 and the first tie bolt 17.4; the horizontal insert 17.2 is inserted into the hollow end of steel beam 3.1.1 and fixed to steel beam 3.1.1 via tie bolts 17.3. Adjust the cantilevered steel frame 3.1 to ensure that its outer end extends at least 1m beyond the outer surface of the concrete column and its inner end does not extend beyond the inner surface of concrete column 1.1. A vertical insulation layer 23 is installed along the horizontal length between the top groove 16 and the bottom of the cantilevered steel frame 3.1; a horizontal insulation layer 24 is laid along the horizontal length at the bottom of the cantilevered steel frame 3.1, inside the vertical insulation layer 23, which helps to enhance the indoor insulation performance.

[0054] Step 4, Install column exterior panel: Install column exterior panel 7 on the outside of the concrete column 1.1, located between the steel canopy 3 and the ground; Step 5: Installation of the standard floor staggered layered external curtain wall system, the specific method is as follows: Step 1, Install the upper connection components: A set of upper connection components 10 are installed at horizontal intervals on the outer surface of the concrete main body 1. Each upper connection component 10 includes a vertical embedded plate 10.1 and a clamping plate 10.2. The vertical embedded plate 10.1 is pre-embedded on the outer surface of the concrete main body 1; check its position. Two clamping plates 10.2 are spaced apart on the outer side of the vertical embedded plate 10.1, and the clamping plates 10.2 are respectively clamped to both sides of the columns of the standard floor curtain wall keel. A second tie bolt 10.4 is used to fix the clamping plates 10.2 between them. Horizontal connecting rods 21 are installed between horizontally adjacent upper connection components 10 to enhance overall stability.

[0055] Step 2, Install the standard floor curtain wall keel: The standard floor curtain wall keel 8 is set between adjacent concrete columns 1.1, and its bottom is connected to the top of the steel canopy 3 or to the standard floor curtain wall keel of the next floor; The vertically adjacent standard floor curtain wall keels are connected by plug-in short rods 22: the plug-in short rods 22 are inserted into the columns of the adjacent standard floor curtain wall keels 8, ensuring that the second tie bolts 10.4 pass through the lower part of the plug-in short rods 22.

[0056] Step 3: Fix the upper part of the standard floor curtain wall keel 8 to the concrete body 1 through the upper connecting component 10; adjust the standard floor curtain wall keel 8 so that the joint of the adjacent standard floor curtain wall keel corresponds horizontally with the floor slab.

[0057] Step 4, Install standard floor glass panel 9: Install standard floor glass panel 9 on the outside of standard floor curtain wall keel 8; connect the lower end of standard floor glass panel 9 to the top of steel canopy or the next standard floor glass panel. An outer pressure cover 19 is installed at the joint of the glass panels of adjacent standard floors in both vertical and horizontal directions. The outer pressure cover 19 is connected to the curtain wall keel 8 of the standard floor by bolts, and the bolts are arranged at intervals along the long axis of the outer pressure cover.

[0058] Step 6, Install sealing plate and fireproof rock wool: First, install bottom sealing plate 13 between floor slab 1.2 and staggered layered external curtain wall system, below the upper connecting component 10; then, install fireproof rock wool 14 on top of bottom sealing plate 13, between the top of floor slab 1.2 and staggered layered external curtain wall system; then, install top sealing plate 12 between the top of floor slab 1.2 and staggered layered external curtain wall system, above the upper connecting component 10. Step 7: Install a sunshade 11 on the outside of the standard floor glass panel 9, corresponding to the horizontal joint of the adjacent standard floor glass panel 9.

[0059] 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 staggered, layered external curtain wall system, installed on the outside of a concrete main body (1); concrete columns (1.1) are spaced apart on the outside of the concrete main body (1) near the edge; characterized in that: It also includes a first-floor staggered layered external curtain wall system and a standard-floor staggered layered external curtain wall system; A steel canopy (3) is provided between adjacent concrete columns (1.1) at a midpoint between the first floor slab (1.2) and the ground (2); the outer end of the steel canopy (3) extends beyond the outer side of the concrete column (1.1), and the inner end of the steel canopy (3) does not extend beyond the inner side of the concrete column (1.1). The first-floor staggered layered external curtain wall system is set between the steel canopy (3) and the ground (2), including the first-floor curtain wall keel (4) and the first-floor glass panel (5); the first-floor curtain wall keel (4) is located between adjacent concrete columns (1.1), and the bottom of the first-floor curtain wall keel (4) is connected to the ground (2) through the bottom connecting component (6), and the top of the first-floor curtain wall keel (4) is connected to the steel canopy (3); the first-floor glass panel (5) is installed on the outside of the first-floor curtain wall keel (4), the upper end of the first-floor glass panel (5) is connected to the steel canopy (3), and the lower end of the first-floor glass panel (5) is connected to the bottom connecting component (6); the outer side of the concrete column (1.1), located between the steel canopy (3) and the ground, is equipped with a column exterior panel (7); the left and right sides of the column exterior panel (7) are bent inward and connected to the first-floor curtain wall keel (4); The standard floor staggered layered external curtain wall system is set between adjacent floor slabs (1.2) of the concrete main body (1) and between the floor slab (1.2) and the top of the steel canopy (3); the standard floor staggered layered external curtain wall system is vertically staggered from the first floor staggered layered external curtain wall system, and the standard floor staggered layered external curtain wall system is located outside the first floor staggered layered external curtain wall system; the standard floor staggered layered external curtain wall system includes a standard floor curtain wall keel (8) and a standard floor glass panel (9); the standard floor curtain wall keel (8) is located between adjacent concrete columns (1.1), and the bottom of the standard floor curtain wall keel (8) is connected to the steel canopy (3) or to the next standard floor curtain wall keel (8), and the upper part of the standard floor curtain wall keel (8) is connected to the concrete main body (1) through the upper connecting component (10); adjacent standard floors The joints of the curtain wall keel (8) are horizontally corresponding to the floor slab (1.2); the standard floor glass panel (9) is installed on the outside of the standard floor curtain wall keel (8), and the lower end of the standard floor glass panel (9) is connected to the top of the steel canopy (3) or the next standard floor glass panel (9); on the outside of the standard floor glass panel (9), a sunshade (11) is provided at the horizontal joint of the adjacent standard floor glass panel (9); a top sealing plate (12) is provided between the floor slab (1.2) and the staggered layered external curtain wall system, above the upper connecting component (10); a bottom sealing plate (13) is provided between the floor slab (1.2) and the staggered layered external curtain wall system, below the upper connecting component (10); fireproof rock wool (14) is provided in the cavity between the top sealing plate (12) and the bottom sealing plate (13).

2. The staggered layered external curtain wall system according to claim 1, characterized in that: The concrete column (1.1) vertically penetrates the concrete body (1); the concrete body (1) also includes a side beam (1.3); the side beam (1.3) is arranged vertically at intervals between each adjacent concrete column (1.1); the floor slab (1.2) is erected on the top of the side beam (1.3); the upper connecting component (10) is arranged on the side beam (1.3).

3. The staggered layered external curtain wall system according to claim 1, characterized in that: The steel canopy (3) includes a cantilevered steel frame (3.1) and an external decorative aluminum panel (3.2); the cantilevered steel frame (3.1) is set between adjacent concrete columns (1.1), and the inner side of the cantilevered steel frame (3.1) is connected to the top of the first-floor curtain wall keel (4), the outer side of the cantilevered steel frame (3.1) extends beyond the outer side of the concrete column (1.1), and the inner side of the cantilevered steel frame (3.1) does not extend beyond the inner side of the concrete column (1.1); the cantilevered steel frame (3.1) includes a steel beam (3.1.1) and a cantilevered steel frame body (3.1.2); the cantilevered steel frame body (3.1.2) is set between adjacent concrete columns (1.1), and the two sides of the cantilevered steel frame body (3.1.2) are respectively connected to the concrete column (1.1); in the cantilevered steel frame body (3.1.2) A top groove (16) is provided at the top of the cantilever steel frame (3.1.2) near the middle position, and a bottom groove (15) is provided at the bottom of the cantilever steel frame (3.1.2) near the inner end position; the lower end of the standard floor glass panel (9) is inserted into the top groove (16); the upper end of the first floor glass panel (5) is inserted into the bottom groove (15); the steel beam (3.1.1) passes through the cantilever steel frame (3.1.2), and the two ends of the steel beam (3.1.1) are fixed to the concrete column (1.1) through the beam-column connection assembly (17); the outer decorative aluminum plate (3.2) is wrapped around the cantilever steel frame (3.1.2), and a first floor decorative light (26) is provided at the top of the outer decorative aluminum plate (3.2) on the outside of the standard floor glass panel (9).

4. The staggered layered external curtain wall system according to claim 3, characterized in that: The steel beam (3.1.1) is made of rectangular cross-section steel; the beam-column connection assembly (17) includes a vertical connecting plate (17.1), a horizontal insert (17.2) and a tie bolt (17.3); the horizontal insert (17.2) is connected to the side of the concrete column (1.1) through the vertical connecting plate (17.1) and the first tie bolt (17.4), the horizontal insert (17.2) is inserted into the cavity end of the steel beam (3.1.1) and fixed to the steel beam (3.1.1) by the tie bolt (17.3).

5. The staggered layered external curtain wall system according to claim 1, characterized in that: The bottom connecting assembly (6) is arranged in a set at horizontal intervals on the ground below the first-floor curtain wall keel (4); the bottom connecting assembly (6) includes a bottom embedded plate (6.1), a vertical insert (6.2) and a slot (6.3); the bottom embedded plate (6.1) is pre-embedded in the concrete slab of the ground, and a vertical anchor bar (6.4) is provided at the bottom of the bottom embedded plate (6.1); the vertical insert (6.2) is provided at the top of the bottom embedded plate (6.1). The vertical insert (6.2) is inserted into the column of the first-floor curtain wall keel (4); on the bottom embedded plate (6.1), two connecting plates (6.5) are arranged longitudinally on the outside of the vertical insert (6.2); each connecting plate (6.5) is strip-shaped and is arranged horizontally; the slot (6.3) has a U-shaped cross-section and is arranged in the two connecting plates (6.5); the lower end of the first-floor glass panel (5) is inserted into the slot (6.3).

6. The staggered layered external curtain wall system according to claim 1, characterized in that: Corner connectors (18) are vertically spaced at the corners on both sides of the concrete column (1.1); each corner connector (18) includes a corner plate (18.1) and a corner reinforcing bar (18.2); the corner plate (18.1) is attached to the corner of the concrete column (1.1); the corner reinforcing bar (18.2) is embedded in the concrete column (1.1), and the corner reinforcing bar (18.2) is located on the outside of the corner. The end is connected to the corner plate (18.1); a vertical slot (18.3) is provided on the outer side of the corner plate (18.1); a decorative panel keel (27) is provided on the inner side of the column exterior decorative panel (7); the column of the decorative panel keel (27) is inserted in the vertical slot (18.3) and fixed to the vertical slot (18.3) by connecting bolts (18.4); the column exterior decorative panel (7) is installed on the outside of the decorative panel keel (27).

7. The staggered layered external curtain wall system according to claim 1, characterized in that: An outer pressure cover (19) is provided at the joint of the glass panels (9) of the adjacent standard floor in both the vertical and horizontal directions; the outer pressure cover (19) is connected to the curtain wall keel (8) of the corresponding standard floor by bolts; the sunshade (11) is connected to the outside of the horizontally arranged outer pressure cover (19); a standard floor decorative light (20) is provided on the top of the sunshade (11).

8. The staggered layered external curtain wall system according to claim 1, characterized in that: The upper connecting assembly (10) is arranged in a set at intervals along the horizontal direction on the concrete body (1); the upper connecting assembly (10) includes a vertical embedded plate (10.1) and a clamping plate (10.2); the vertical embedded plate (10.1) is pre-embedded on the outer side of the concrete body (1), and a horizontal anchor bar (10.3) is provided at the bottom of the vertical embedded plate (10.1); there are two clamping plates (10.2), which are arranged at intervals on the outer side of the vertical embedded plate (10.1); the two clamping plates (10.2) are respectively clamped on both sides of the column of the standard floor curtain wall keel (8), and a second tie bolt (10.4) is pulled between the two clamping plates (10.2); a horizontal connecting rod (21) is provided between the horizontally adjacent upper connecting assemblies (10).

9. The staggered layered external curtain wall system according to claim 8, characterized in that: The vertically adjacent standard floor curtain wall keel (8) is connected by a plug-in short rod (22); the plug-in short rod (22) is inserted into the column of the adjacent standard floor curtain wall keel (8); the second tie bolt (10.4) passes through the lower part of the plug-in short rod (22).

10. A construction method for a staggered, layered external curtain wall system as described in any one of claims 1-9, characterized in that, The steps include the following: Step 1, Construction of the concrete main body (1); Construction of concrete columns: Concrete columns (1.1) are installed at intervals on the outside of the designed concrete main body (1) near the edge; the concrete columns (1.1) penetrate the concrete main body vertically; Step 2: Installation of the staggered, layered external curtain wall system on the first floor; Step 1: Install the bottom connection components; Step II, Install the first-floor curtain wall keel (4): Set the first-floor curtain wall keel (4) between adjacent concrete columns (1.1); Step III, Install the first-floor glass panel: Install the first-floor glass panel (5) on the outside of the first-floor curtain wall keel (4); Step 3, installation of the steel canopy (3); Step 4, Install column exterior panel (7): Install column exterior panel (7) on the outside of the concrete column (1.1) between the steel canopy (3) and the ground. Step 5: Installation of the standard floor staggered layered external curtain wall system, the specific method is as follows: Step 1, Install the upper connection components: Set a set of upper connection components (10) at transverse intervals on the outer side of the concrete body (1). Step 2, Install the standard floor curtain wall keel: The standard floor curtain wall keel (8) is set between adjacent concrete columns (1.1), and its bottom is connected to the top of the steel canopy (3) or to the standard floor curtain wall keel of the next floor; Step 3: Fix the upper part of the standard floor curtain wall keel (8) to the concrete body (1) through the upper connecting component (10); Step 4, Install standard floor glass panels (9): Install the standard floor glass panels (9) on the outside of the standard floor curtain wall keel (8); connect the lower end of the standard floor glass panels (9) to the top of the steel canopy or the next standard floor glass panel; Step 6, Install sealing plate and fireproof rock wool: First, install bottom sealing plate (13) between floor slab (1.2) and staggered layered external curtain wall system, below the upper connecting component (10); then, install fireproof rock wool (14) on top of bottom sealing plate (13), between the top of floor slab (1.2) and staggered layered external curtain wall system, and then install top sealing plate (12) between the top of floor slab (1.2) and staggered layered external curtain wall system, above the upper connecting component (10); Step 7: Install a sunshade (11) on the outside of the standard floor glass panel (9) at the lateral joint of the adjacent standard floor glass panel (9).

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