Construction method of a jagged facade

Abstract

The application discloses a construction method of a sawtooth-shaped outer wall, and relates to the technical field of outer wall construction, which comprises the following steps: installing a cantilever frame embedded part on a bottom floor; installing a hanging component; installing a sawtooth-shaped embedded part; pouring concrete on the bottom floor to form a sawtooth-shaped outer wall structure; installing outer wall ALC plates along the surface of the sawtooth-shaped outer wall structure through guide angle steels; installing thermal insulation boards along the surface of the ALC plates; installing curtain wall keels; installing outer facade materials of the curtain wall, and cleaning and gluing after the installation is completed. The construction method of the sawtooth-shaped outer wall is convenient and efficient, the construction process is simplified, and the construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of exterior wall construction technology, and in particular to a construction method for a sawtooth-shaped exterior wall. Background Technology

[0002] In multi-story and high-rise building projects, cantilevered scaffolding is an essential safety protection measure and operating platform, which directly affects the personal safety of workers, as well as the quality and efficiency of project construction.

[0003] Traditional cantilevered steel scaffolding uses U-shaped tie rings or anchor bolts to anchor the steel sections to the floor slab, resulting in a large amount of steel used. In the cantilevered steel laying layer, the large space required for the cantilevered steel may not be directly available within the building's interior space, necessitating additional pre-drilled holes or other reinforced anchoring measures to ensure anchoring safety. This complicates the construction of the laying layer, and the presence of I-beams on the floor can affect subsequent interior wall and floor construction.

[0004] Because cantilevered steel sections extend outwards from the building's interior, holes must be pre-drilled in the walls. After construction, dismantling these sections involves pulling them from the outside inwards into the building for unified hoisting and removal. If the building's interior space is insufficient, the steel sections must be cut, resulting in significant waste during segmented transport and low reuse rates. After dismantling, large holes remain in the building's exterior walls. Even if these holes are filled, the difference in time and properties between the filling material and the surrounding material can lead to significant leakage risks.

[0005] Existing sawtooth-shaped exterior walls generally use traditional wooden formwork structural column support systems. The formwork process for structural columns at corners is cumbersome, requiring tie rods to pass through the masonry walls on both sides. After demolding, holes are left in the walls, which is not conducive to overall quality control. Therefore, this operation process not only has the problems of complex procedures and low construction efficiency, but also, due to the limited number of times wooden formwork and timber can be reused, there are problems of poor concrete forming quality of structural columns after repeated use, resulting in serious material waste. In addition, the compressive and bending resistance of wooden formwork is limited, which cannot effectively ensure that the appearance and dimensional deviations of the formed structural columns meet the specifications. Summary of the Invention

[0006] The purpose of this invention is to address the problems and shortcomings of existing technologies by providing a construction method for a sawtooth-shaped exterior wall, thereby solving the technical problems of complex shapes, cumbersome procedures, high construction difficulty, and low construction efficiency caused by existing construction methods.

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] This invention provides a construction method for a sawtooth-shaped exterior wall, the construction method comprising the following steps:

[0009] S 100 Install the cantilever frame embedded parts on the ground floor slab;

[0010] S 200 : Install hanging components;

[0011] S 300 Install serrated embedded parts;

[0012] S 400 The ground floor slab is poured with concrete to form a sawtooth-shaped exterior wall structure.

[0013] S 500 : Install the exterior wall ALC panels along the surface of the sawtooth exterior wall structure using guide angle steel;

[0014] S 600 Insulation boards are installed along the surface of the ALC sheet.

[0015] S 700 Install curtain wall keel;

[0016] S 800 Install the exterior facade panels of the curtain wall, and clean and apply sealant after installation.

[0017] Furthermore, in S 100 The step of installing the cantilever frame embedded parts on the ground floor slab specifically includes:

[0018] S 110 Positioning and layout are used to determine the installation location of the cantilevered I-beam, and the cantilevered I-beam is then installed.

[0019] S 120 An embedded steel plate and a pre-embedded part of the cantilever frame are provided on one side of the bottom of the cantilever I-beam, and the pre-embedded part of the cantilever frame is connected to the cantilever I-beam by steel bars;

[0020] S 130 The cantilevered I-beam is supported by channel steel support members.

[0021] Furthermore, in step S 120 The embedded steel plate includes a steel plate horizontally fully welded to the lower surface of the cantilevered I-beam and supporting reinforcing bars evenly distributed and connected to the bottom of the steel plate. The cross-sectional dimensions of the steel plate are 200mm×300mm×20mm, and the diameter of the supporting reinforcing bars is 22mm with a Rockwell hardness of 400HRB.

[0022] Furthermore, in step S 130The channel steel support includes a channel steel connected to the bottom of the cantilevered I-beam and a steel pipe vertically connected to the bottom of the channel steel.

[0023] Furthermore, in S 200 The hanging component includes a wall-mounted connector, an upper tie rod, a turnbuckle, and a lower tie rod. The wall-mounted connector is fixedly connected to the wall structure by tie bolts and nuts. The wall-mounted connector is locked to one end of the upper tie rod by bolts and nuts. The other end of the upper tie rod is threaded to one end of the turnbuckle. The other end of the turnbuckle is threaded to one end of the lower tie rod. The other end of the lower tie rod is locked to the hanging lug plate by bolts and nuts.

[0024] Furthermore, in S 200 The steps for installing the hanging components specifically include:

[0025] S 210 The lifting lug plate is welded to the upper surface of the cantilevered I-beam;

[0026] S 220 After the side formwork of the upper layer of the cantilever is removed, the hanging components are installed so that the prestress of the hanging components can suspend the cantilever I-beam.

[0027] S 230 Once the tethering strength between the hanging component and the main beam concrete reaches 15MPa, the channel steel support is removed, allowing the hanging component to bear full load.

[0028] Furthermore, in step S 100 Previously, this also included: prefabricated sawtooth-shaped embedded parts;

[0029] The serrated embedded part includes multiple sequentially connected internal toothed embedded parts and external toothed embedded parts;

[0030] The internal tooth embedded part includes a concave steel plate, two first reinforcing bars and two first base plates, and one end of each of the two first reinforcing bars is symmetrically and vertically connected to the back of the concave steel plate, and the other end of each of the two first reinforcing bars is vertically connected to the two first base plates respectively.

[0031] The external tooth embedded part includes an externally protruding steel plate, two second reinforcing bars and two second base plates, with one end of each of the two second reinforcing bars symmetrically and vertically connected to the back of the externally protruding steel plate, and the other end of each of the two second reinforcing bars being vertically connected to the two second base plates respectively.

[0032] Furthermore, the dimensions of both the concave steel plate and the convex steel plate are 300mm×200mm×10mm; the diameters of both the first reinforcing bar and the second reinforcing bar are 12mm; the cross-sectional dimensions of both the first base plate and the second base plate are 60mm×60mm×10mm; and the included angle between both the concave steel plate and the convex steel plate is 116 degrees.

[0033] Furthermore, in step S 700 The specific steps for installing the curtain wall keel include:

[0034] Step S 710 A vertical positioning steel wire is installed at the corner of the sawtooth-shaped exterior wall structure;

[0035] Step S 720 The main keel is connected to the cantilever frame embedded parts pre-embedded during the main construction by using stainless steel hot-dip galvanized steel sheets;

[0036] Step S 730 The main keel is temporarily welded and fixed to the surface of the cantilever frame embedded part using connectors;

[0037] Step S 740 Install the secondary keel.

[0038] Furthermore, in step S 800 In this context, the exterior facade panels include stone curtain walls and glass curtain walls, with the glass curtain walls spaced apart on the serrated flat sections of the stone curtain walls.

[0039] Compared with the prior art, the present invention has significant advantages and beneficial effects, specifically reflected in the following aspects:

[0040] This invention designs a novel exterior wall shape and its construction method. It employs a basket-style cantilevered I-beam scaffold for construction, followed by the pouring of the next floor slab concrete. During the formwork erection of the upper structural beams of the cantilevered layer, pre-drilled holes are made at corresponding positions above the cantilever beams to fix the diagonal tie rods. To accommodate the sawtooth structure and curtain wall construction, sawtooth-shaped embedded parts are prefabricated. The triangular structural lines are laid out on the bottom formwork, the formwork is installed, the reinforcing bars are tied, and the curtain wall embedded parts are accurately placed. After confirming correct positioning, the concrete floor slab pouring begins. After the concrete reaches its strength, steel tie rods are installed, and the lower-level supports are removed. Then, the floor slab is poured. ALC panels are laid out in advance, processed to conform to a sawtooth shape, and guide angle steel is installed before installing the exterior ALC panels. Insulation boards are installed along the ALC panels, ensuring that the panel joints are closed loops in the side insulation layer. Vertical positioning steel lines are strung at the sawtooth corners. The main keel is connected to the embedded parts pre-embedded during the main construction using stainless steel hot-dip galvanized steel sheets. The connectors are welded to temporarily fix the main keel to the surface of the embedded parts. Secondary keels are then installed, along with interlayer insulation and fireproofing of the curtain wall. The inner and outer teeth are made of stone curtain wall, with glass curtain walls spaced at intervals along the sawtooth flat teeth sections of the stone curtain wall. After installation, cleaning and caulking are performed, finally completing the structure. The construction method of using a layer-by-layer support frame with initial support followed by diagonal bracing makes the construction of the sawtooth-shaped exterior wall structure more convenient and efficient. This process not only simplifies procedures and improves construction efficiency, but also saves materials due to fewer formwork turnovers, resulting in high-quality concrete forming of the structural columns. Furthermore, it improves the compressive and bending resistance of the formwork, effectively ensuring that the dimensional deviations of the formed structural columns meet the specifications. The embedded parts are processed to size, enabling green and energy-saving construction and meeting the requirements of green building after completion. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the construction method for the sawtooth-shaped exterior wall in an embodiment of the present invention;

[0042] Figure 2 Step S in the embodiment of the present invention 110 A flowchart;

[0043] Figure 3 Step S in the embodiment of the present invention 200 A flowchart;

[0044] Figure 4 Step S in the embodiment of the present invention 700 A flowchart;

[0045] Figure 5 This is a schematic diagram of the installation structure of the embedded parts of the cantilever frame in an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram of the installation structure of the cantilever frame embedded parts and hanging components in an embodiment of the present invention;

[0047] Figure 7 This is a schematic diagram of the external tooth embedded part in an embodiment of the present invention;

[0048] Figure 8 This is a schematic diagram of the internal tooth embedded part in an embodiment of the present invention;

[0049] Figure 9 This is a schematic diagram of the serrated structure in an embodiment of the present invention;

[0050] Figure 10 This is a schematic diagram of the installation structure of the ALC plate in an embodiment of the present invention;

[0051] Figure 11 This is a schematic diagram of the installation structure of the insulation board in an embodiment of the present invention;

[0052] Figure 12 This is a schematic diagram of the installation structure of the sawtooth curtain wall keel in an embodiment of the present invention;

[0053] Figure 13 This is a schematic diagram of the installation structure of the curtain wall facade panels in an embodiment of the present invention.

[0054] Explanation of reference numerals in the attached figures:

[0055] 1-Embedded parts for cantilever frame; 11-Embedded steel plate; 111-Steel plate; 112-Supporting reinforcing bars; 12-Reinforcing bars; 13-Lifting lug plate;

[0056] 2-Hanging component; 21-Wall fastener; 22-Upper tie rod; 23-Turn bolt; 24-Lower tie rod;

[0057] 3-Sawtooth embedded parts;

[0058] 31-Internal tooth embedded part; 311-Concave steel plate; 312-First reinforcing bar; 313-First base plate;

[0059] 32-External toothed embedded part; 321-Externally protruding steel plate; 322-Second reinforcing bar; 323-Second base plate;

[0060] 4-ALC sheet material;

[0061] 5-Insulation board;

[0062] 6-Curtain wall keel; 61-Main keel; 62-Secondary keel; 63-Connector;

[0063] 7-Exterior facade panels; 71-Stone curtain wall; 72-Glass curtain wall;

[0064] 8-Cantilevered I-beam;

[0065] 9-Channel steel support; 91-Channel steel; 92-Steel pipe. Detailed Implementation

[0066] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0067] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0069] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0070] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0071] Given the characteristics of sawtooth-shaped exterior walls—extra-long, extra-high, structurally cantilevered, and with numerous structural layers—they are not only complex in shape but also difficult to construct. Based on the technical problems existing in the traditional wooden formwork column support system, there is an urgent need to find an effective solution to address these issues.

[0072] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0073] Please refer to Figure 1-13 As shown, this embodiment of the invention provides a construction method for a sawtooth-shaped exterior wall, the construction method including the following steps:

[0074] S 100 : Install the cantilever frame embedded part 1 on the ground floor slab;

[0075] In this step, since the external wall sawtooth structure is an externally cantilevered triangular plate, a basket-type cantilevered I-beam scaffold is used for construction. Before construction, the relevant cantilevered scaffold embedded parts 1 need to be installed on the next floor slab.

[0076] S 200 : Install hanging components 2;

[0077] In this step, after the side formwork of the upper layer of the cantilever is removed, the diagonal tie rod is installed, connected to the tie rod and turnbuckle on the lower suspension point, and the nuts are tightened to prestress the steel section.

[0078] S 300 : Install 3 sawtooth-shaped embedded parts;

[0079] S 400 The ground floor slab is poured with concrete to form a sawtooth-shaped exterior wall structure.

[0080] S 500 : Install the exterior wall ALC panels 4 along the surface of the sawtooth exterior wall structure using guide angle steel;

[0081] In this step, ALC panels (autoclaved aerated concrete wall panels) are commonly used internal and external cladding components in prefabricated buildings. With the increasing national energy conservation standards, the requirements for the thermal insulation performance of external walls are becoming more stringent, and to ensure the safety and quality of prefabricated buildings, the requirements for seismic performance are also increasing. Current technologies typically improve thermal insulation by thickening the wall or laying insulation materials on the inner or outer sides of the wall. However, this construction method carries the risk of insulation materials easily detaching. To improve seismic performance and ensure connection with the main structure, guide angle steel (angle steel connectors) is used to weld the wall panels to the main structure. The installation characteristics of the inner and outer panels are considered during welding, making on-site installation convenient and efficient.

[0082] S 600 Insulation board 5 is installed along the surface of the ALC board 4;

[0083] S 700 Install curtain wall keel 6;

[0084] S 800 Install the exterior facade panels of the curtain wall, and clean and apply sealant after installation.

[0085] This invention employs a basket-type cantilevered I-beam scaffold for construction, followed by the pouring of the next floor slab concrete. During the formwork erection of the upper structural beams of the cantilevered layer, pre-drilled holes are made at corresponding positions above the cantilever beams to fix the diagonal tie rods. To accommodate the sawtooth structure and curtain wall construction, sawtooth-shaped embedded parts are prefabricated. The triangular structural lines are laid out on the bottom formwork, the formwork is installed, the reinforcing bars are tied, and the curtain wall embedded parts are accurately placed. After confirming correct positioning, the concrete floor slab pouring begins, and the pouring continues until the upper concrete reaches the required strength. After the initial setup, steel tie rods are installed, and the lower-level supports are removed. Then, the floor slab is poured. ALC panels are laid out in advance, and panels conforming to the sawtooth shape are processed. Guide angle steel is installed, and the exterior ALC panels are installed. Insulation boards are installed along the ALC panels, ensuring that the panel joints are in a closed loop on the side insulation layer. Vertical positioning steel lines are stretched at the sawtooth corners. The main keel is connected to the embedded parts pre-embedded during the main construction using stainless steel hot-dip galvanized steel sheets. The connectors are welded to temporarily fix the main keel to the surface of the embedded parts. Secondary keels are then installed, along with interlayer insulation and fireproofing of the curtain wall. The inner and outer teeth are made of stone curtain wall, with glass curtain walls spaced at intervals along the sawtooth flat tooth sections of the stone curtain wall. After installation, cleaning and caulking are performed, finally completing the structure. The construction method of using a layer-by-layer support frame with initial support followed by diagonal bracing makes the construction of the sawtooth-shaped exterior wall structure more convenient and efficient. This process not only simplifies procedures and improves construction efficiency, but also saves materials due to fewer formwork turnovers, resulting in high-quality concrete forming of the structural columns. Furthermore, it improves the compressive and bending resistance of the formwork, effectively ensuring that the dimensional deviations of the formed structural columns meet the specifications. The embedded parts are processed to size, enabling green and energy-saving construction and meeting the requirements of green building after completion.

[0086] Furthermore, in S 100 The step of installing the cantilever frame embedded part 1 on the ground floor slab specifically includes:

[0087] S 110 Positioning and layout are used to determine the installation location of the cantilevered I-beam 8, and the cantilevered I-beam 8 is then installed.

[0088] S 120 An embedded steel plate 11 and a cantilever frame embedded part 1 are provided on one side of the bottom of the cantilever I-beam 8. The cantilever frame embedded part 1 is connected to the cantilever I-beam 8 by a steel bar 12.

[0089] S 130 The cantilevered I-beam 8 is supported by the channel steel support member 9.

[0090] Furthermore, in step S 120The embedded steel plate 11 includes a steel plate 111 horizontally fully welded to the lower surface of the cantilevered I-beam 8 and supporting reinforcing bars 112 evenly distributed and connected to the bottom of the steel plate 111. The cross-sectional dimensions of the steel plate 111 are 200mm×300mm×20mm, and the diameter of the supporting reinforcing bars 112 is 22mm with a Rockwell hardness of 400HRB.

[0091] Furthermore, in step S 130 The channel steel support 9 includes a channel steel 91 connected to the bottom of the cantilevered I-beam 8 and a steel pipe 92 vertically connected to the bottom of the channel steel 91.

[0092] Please see Figure 5 As shown, in a specific embodiment of the present invention, when installing the cantilevered I-beam 8, it is first necessary to erect a basket-type cantilever frame. Since the upper cantilever structure has not yet been constructed, it is necessary to support the cantilevered I-beam 8 (channel steel + steel pipe). Therefore, in this embodiment, channel steel support 9 is used to initially support the cantilever frame embedded part 1.

[0093] Furthermore, in S 200 The hanging component 2 includes a wall-mounted connector 21, an upper pull rod 22, a turnbuckle 23, and a lower pull rod 24. The wall-mounted connector 21 is fixedly connected to the wall structure by tie bolts and nuts. The wall-mounted connector 21 is locked to one end of the upper pull rod 22 by bolts and nuts. The other end of the upper pull rod 22 is threaded to one end of the turnbuckle 23. The other end of the turnbuckle 23 is threaded to one end of the lower pull rod 24. The other end of the lower pull rod 24 is locked to the hanging lug plate 13 by bolts and nuts.

[0094] Please see Figure 6 As shown, in a specific embodiment of the present invention, the hanging component is composed of a wall-mounted connector 21, an upper tie rod 22, a turnbuckle 23, and a lower tie rod 24, wherein:

[0095] The upper end of the turnbuckle 23 is provided with an axial left-hand or right-hand threaded through hole, and the lower end of the upper pull rod 22 is provided with a left-hand or right-hand threaded section; the lower end of the turnbuckle 23 is provided with an axial right-hand or left-hand threaded through hole, and the upper end of the lower pull rod 24 is provided with a right-hand or left-hand threaded section; the lower threaded section mates with the upper threaded through hole, and the upper threaded section mates with the lower threaded through hole. Rotating the turnbuckle 23 can tighten or loosen the upper pull rod 22 and the lower pull rod 24.

[0096] Compared with conventional cantilevered steel pipe coupler scaffolding, it reduces the amount of I-beams used by at least 60%, resulting in significant material savings. Moreover, compared with traditional cantilever methods, the basket-type cantilever scaffolding uses lightweight materials and is a quick-installation tool-type scaffolding. During the installation process at the working level, the installation cycle is shortened, saving time for the construction of the cantilevered level. Compared with attached climbing scaffolding, it has the advantages of simple process and high safety factor.

[0097] Furthermore, in S 200 The specific steps for installing the hanging component 2 include:

[0098] S 210 The lifting lug plate 13 is welded to the upper surface of the cantilevered I-beam 8;

[0099] S 220 After the side formwork of the upper layer of the cantilever is removed, the hanging component 2 is installed so that the prestress of the hanging component 2 can suspend the cantilever I-beam 8.

[0100] S 230 When the tether strength between the hanging component 2 and the main beam concrete reaches 15MPa, the channel steel support 9 is removed, so that the hanging component 2 is fully stressed.

[0101] Please see Figure 6 As shown, in a specific embodiment of the present invention,

[0102] Furthermore, in step S 100 Previously, it also included: 3 prefabricated sawtooth-shaped embedded parts;

[0103] The serrated embedded part 3 includes a plurality of internal toothed embedded parts 31 and external toothed embedded parts 32 connected in sequence;

[0104] The internal tooth embedded part 31 includes a concave steel plate 311, two first reinforcing bars 312 and two first base plates 313, and one end of each of the two first reinforcing bars 312 is symmetrically and vertically connected to the back of the concave steel plate 311, and the other end of each of the two first reinforcing bars 312 is correspondingly and vertically connected to the two first base plates 313.

[0105] The external tooth embedded part 32 includes an externally protruding steel plate 321, two second reinforcing bars 322 and two second base plates 323, and one end of each of the two second reinforcing bars 322 is symmetrically and vertically connected to the back of the externally protruding steel plate 321, and the other end of each of the two second reinforcing bars 322 is correspondingly and vertically connected to the two second base plates 323.

[0106] Please see Figure 7 , 8As shown in Figures 9 and 1, in a specific embodiment of the present invention, both the internal toothed embedded part 31 and the external toothed embedded part 32 are custom-made, reducing the on-site mold matching and processing steps and making the operation procedure simpler; at the same time, the standardized template can effectively ensure the verticality and flatness of the structural column, improve the finished product qualification rate, and also improve the quality standard of the finished product.

[0107] Furthermore, the dimensions of the concave steel plate 311 and the convex steel plate 321 are both 300mm × 200mm × 10mm; the diameters of the first reinforcing bar 312 and the second reinforcing bar 322 are both 12mm; the cross-sectional dimensions of the first base plate 313 and the second base plate 323 are both 60mm × 60mm × 10mm; and the included angle between the concave steel plate 311 and the convex steel plate 321 is 116 degrees.

[0108] Specifically, please refer to Figure 7 , 8 As shown in the specific embodiment of the present invention, in order to fit the sawtooth structure and the construction of the sawtooth curtain wall, it is necessary to prefabricate the sawtooth embedded part 3 in advance. In this embodiment, the sawtooth embedded part 3 is formed by connecting the concave steel plate 311 and the convex steel plate 321 at intervals. The dimensions of the concave steel plate 311 and the convex steel plate 321 are both 300mm×200mm×10mm. On the one hand, the material is sourced locally, reducing material costs; on the other hand, it can also meet the structural strength requirements.

[0109] Furthermore, in step S 700 The specific steps for installing the curtain wall keel 6 include:

[0110] Step S 710 A vertical positioning steel wire is installed at the corner of the sawtooth-shaped exterior wall structure;

[0111] Because the keel of the sawtooth curtain wall needs to be arranged in an interlaced manner, a large number of layout operations are required to determine the location of the keel. Therefore, accurate measurement and layout before construction is beneficial to the structural stability of the sawtooth exterior wall structure, ensuring the quality of the curtain wall installation and coordination with other construction work, and ensuring tight joints.

[0112] Step S 720 The main keel 61 is connected to the cantilever frame embedded part 1 pre-embedded during the construction of the main building by means of stainless steel hot-dip galvanized steel sheet;

[0113] Step S 730 The main keel 61 is temporarily welded and fixed to the surface of the cantilever frame embedded part 1 by means of connector 63;

[0114] Using the vertical steel line as a positioning reference, the main keel 61 is installed from the bottom layer and gradually moved upwards. The main keel is connected to the main building structure and secondary structure embedded parts through connectors 63 (L-shaped connectors). Connectors 63 are welded to the structural embedded parts and bolted to the main keel 61.

[0115] Step S 740 Install secondary keel 62.

[0116] Secondary keel 62 is located between the main keels. The secondary keel and the main keel are connected by square steel connectors (50 mm × 50 mm × 5 mm hot-dip galvanized angle steel) and the connection method is bolt connection.

[0117] Please see Figure 12 As shown, in a specific embodiment of the present invention, a curtain wall keel 6 is installed on the main building structure, and according to the layout of the stone curtain wall and the glass curtain wall, the curtain wall keel 6 is divided into a glass curtain wall keel area and a stone curtain wall keel area. That is to say, the stone curtain wall 71 and the glass curtain wall 72 are installed on the same curtain wall keel 6, which simplifies the on-site construction steps and makes it convenient for the finished surfaces of the subsequent stone panels and glass panels to be on the same plane, so that the curtain wall surface is flat and can form a good visual effect.

[0118] Furthermore, in step S 800 In this structure, the exterior facade panel 7 includes a stone curtain wall 71 and a glass curtain wall 72, and the glass curtain wall 72 is arranged at intervals on the serrated flat tooth section of the stone curtain wall 71.

[0119] For more details, please refer to Figure 13 As shown, the glass frame is embedded in the glass curtain wall keel area, and the back panel is fixedly installed in the stone curtain wall keel area. The glass frame is an integral frame with a height of a single floor and several sections set along the height direction. The corresponding glass panels are fixedly installed on each section of the glass frame to complete the installation of the glass curtain wall 72. The stone panels are fixedly installed on the keel inside the back panel through hangers to complete the installation of the stone curtain wall 71.

[0120] Finally, to facilitate the adjustment of the position of the stone or glass units within the curtain wall plane during installation and to achieve the architectural effect of stone grooving, gaps are left between the glass panels and the stone panels, as well as between two adjacent stone panels. Therefore, after the glass frame is installed, edge sealing components are installed around the outer perimeter of the glass frame. One side of the edge sealing component is connected and fixed to the glass frame, and the other side is connected and fixed to the back panel. The edge sealing component, the back panel, and the glass curtain wall form a sealed interface, which is then cleaned and sealed with sealant.

[0121] In this embodiment, the curtain wall form has changed from the original single material curtain wall such as glass, metal and stone to a mixed curtain wall with multiple materials. This mixed curtain wall can give people a refreshing visual impact and significantly enhance the decorative effect of the curtain wall.

[0122] While the invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the scope of protection of this invention.

Claims

1. A construction method for a sawtooth-shaped exterior wall, characterized in that, The construction method includes the following steps: S 100 Install the cantilever frame embedded parts on the ground floor slab, in S 100 The step of installing the cantilever frame embedded parts on the ground floor slab specifically includes: S 110 Positioning and layout are used to determine the installation location of the cantilevered I-beam, and the cantilevered I-beam is then installed. S 120 An embedded steel plate and a pre-embedded part of the cantilever frame are provided on one side of the bottom of the cantilever I-beam, and the pre-embedded part of the cantilever frame is connected to the cantilever I-beam by steel bars; S 130 The cantilevered I-beam is supported by channel steel supports; in step S 100 Previously, this also included: prefabricated sawtooth-shaped embedded parts; The serrated embedded part includes multiple sequentially connected internal toothed embedded parts and external toothed embedded parts; The internal tooth embedded part includes a concave steel plate, two first reinforcing bars and two first base plates, and one end of each of the two first reinforcing bars is symmetrically and vertically connected to the back of the concave steel plate, and the other end of each of the two first reinforcing bars is vertically connected to the two first base plates respectively. The external tooth embedded part includes an externally protruding steel plate, two second reinforcing bars and two second bottom plates, and one end of each of the two second reinforcing bars is symmetrically and vertically connected to the back of the externally protruding steel plate, and the other end of each of the two second reinforcing bars is correspondingly and vertically connected to the two second bottom plates. S 200 : Install hanging components, in S 200 The hanging components include wall-mounted connectors, upper tie rods, turnbuckles, and lower tie rods. S 300 Install serrated embedded parts; S 400 The ground floor slab is poured with concrete to form a sawtooth-shaped exterior wall structure. S 500 : Install the exterior wall ALC panels along the surface of the sawtooth exterior wall structure using guide angle steel; S 600 Insulation boards are installed along the surface of the ALC sheet. S 700 Install curtain wall keel; S 800 Install the exterior facade panels of the curtain wall, and clean and apply sealant after installation. (Step S) 800 In this context, the exterior facade panels include stone curtain walls and glass curtain walls, with the glass curtain walls spaced apart on the serrated flat sections of the stone curtain walls.

2. The construction method for the sawtooth-shaped exterior wall according to claim 1, characterized in that, In step S 120 The embedded steel plate includes a steel plate horizontally fully welded to the lower surface of the cantilevered I-beam and supporting reinforcing bars evenly distributed and connected to the bottom of the steel plate. The cross-sectional dimensions of the steel plate are 200mm×300mm×20mm, and the diameter of the supporting reinforcing bars is 22mm with a Rockwell hardness of 400HRB.

3. The construction method for the sawtooth-shaped exterior wall according to claim 1, characterized in that, In step S 130 The channel steel support includes a channel steel connected to the bottom of the cantilevered I-beam and a steel pipe vertically connected to the bottom of the channel steel.

4. The construction method for the sawtooth-shaped exterior wall according to claim 3, characterized in that, In S 200 In this configuration, the wall-mounted connector is fixedly connected to the wall structure by tie bolts and nuts. The wall-mounted connector is locked to one end of the upper pull rod by bolts and nuts. The other end of the upper pull rod is threaded to one end of the turnbuckle. The other end of the turnbuckle is threaded to one end of the lower pull rod. The other end of the lower pull rod is locked to the lug plate by bolts and nuts.

5. The construction method for the sawtooth-shaped exterior wall according to claim 4, characterized in that, In S 200 The steps for installing the hanging components specifically include: S 210 The lifting lug plate is welded to the upper surface of the cantilevered I-beam; S 220 After the side formwork of the upper layer of the cantilever is removed, the hanging components are installed so that the prestress of the hanging components can suspend the cantilever I-beam. S 230 Once the tethering strength between the hanging component and the main beam concrete reaches 15MPa, the channel steel support is removed, allowing the hanging component to bear full load.

6. The construction method for the sawtooth-shaped exterior wall according to claim 1, characterized in that, The dimensions of the concave steel plate and the convex steel plate are both 300mm×200mm×10mm; the diameters of the first reinforcing bar and the second reinforcing bar are both 12mm; the cross-sectional dimensions of the first base plate and the second base plate are both 60mm×60mm×10mm; and the included angle between the concave steel plate and the convex steel plate is 116 degrees.

7. The construction method for the sawtooth-shaped exterior wall according to claim 1, characterized in that, In step S 700 The specific steps for installing the curtain wall keel include: Step S 710 A vertical positioning steel wire is installed at the corner of the sawtooth-shaped exterior wall structure; Step S 720 The main keel is connected to the cantilever frame embedded parts pre-embedded during the main construction by using stainless steel hot-dip galvanized steel sheets; Step S 730 The main keel is temporarily welded and fixed to the surface of the cantilever frame embedded part using connectors; Step S 740 Install the secondary keel.

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