Modularized assembly type large cantilever balcony

Abstract

The utility model provides a modular assembly type large cantilever balcony, which belongs to the field of assembly type buildings and at least comprises two cantilever steel girders, a first flower bed structure, a second flower bed structure and a platform structure. Wherein the two overhanging steel girders are arranged side by side at intervals, one ends of the overhanging steel girders are fixed to a building body, and the other ends of the overhanging steel girders are overhung outside; the first flower bed structure is assembled between the overhanging ends of the two overhanging steel main beams, and a platform area of a balcony is formed between the first flower bed structure and the building main body; the platform structure is mounted between the first flower bed structure and the building main body; and the second flower pond structure is mounted between the platform structure and the cantilever steel main beam, so that quick mounting of factory modular prefabrication and on-site assembly forming is realized.

Description

Technical Field

[0001] The utility model relates to the field of assembled buildings, in particular to a modular assembled large cantilevered balcony. Background Art

[0002] With the rise of the fourth generation of housing, large-scale balconies are increasingly being used in residential buildings. However, for large-scale balconies, it is often necessary to add diagonal bars at the bottom of the balcony to meet the mechanical requirements of the structure. At the same time, due to its cross-layer characteristics, high formwork is required during balcony construction, which is expensive. Therefore, a large cantilever balcony structure technology that does not require high formwork construction and has no bottom diagonal bracing is urgently needed. Utility Model Content

[0003] The utility model aims to provide a large cantilever balcony structure without high formwork construction and bottom diagonal bracing. To this end, the utility model provides a modular assembled large cantilever balcony, characterized in that it at least includes:

[0004] two cantilever steel main beams, the two cantilever steel main beams are arranged side by side with a spacing, one end of the cantilever steel main beam is fixed to the main body of the building, and the other end is cantilevered outside;

[0005] A first flower bed structure, the first flower bed structure is assembled between the cantilevered ends of the two cantilevered steel main beams; the first flower bed structure includes two first flower bed steel secondary beams and a first flower bed bottom plate, the two first flower bed steel secondary beams are assembled and fixed between the two cantilevered steel main beams, and the first flower bed bottom plate is fixed between the two first flower bed steel secondary beams; a balcony platform area is formed between the first flower bed structure and the main building;

[0006] A platform structure, the platform structure being installed in the platform area between the first flower bed structure and the building body;

[0007] The second flower bed structure is installed between the platform structure and the cantilevered steel main beam, the second flower bed structure at least includes a second flower bed steel secondary beam and a second flower bed bottom plate, the second flower bed steel secondary beam is assembled and fixed between the first flower bed steel secondary beam and the building main body, and the second flower bed bottom plate is fixed between the first flower bed steel secondary beam and the cantilevered steel main beam.

[0008] Preferably, the number of the second flower bed structures is two, and the second flower bed structures are respectively located on both sides of the platform structure. The second flower bed steel secondary beams of the second flower bed structures, the building main body, and the first flower bed structure enclose a platform area of ​​the balcony.

[0009] Preferably, the platform structure at least includes a platform board, and the platform board is laid on the platform area and fixed to at least the first flower bed structure and the second flower bed structure.

[0010] Preferably, the first flower bed bottom plate, the second flower bed bottom plate and the platform plate are corrugated steel plates.

[0011] Preferably, the first flower bed bottom plate is connected to the bottom of the first flower bed steel secondary beam, and a first flower bed is formed above the first flower bed bottom plate;

[0012] The second flower bed bottom plate is connected to the bottom of the second flower bed steel secondary beam, and a second flower bed is formed above the second flower bed bottom plate;

[0013] The platform plate is at least laid on the top of the second flower bed steel secondary beam, and a platform activity area is formed above the platform plate.

[0014] Preferably, the cantilevered steel main beam is provided with a first tongue and groove, the end of the first flower bed steel secondary beam is provided with a second tongue and groove, and the first flower bed steel secondary beam is erected on the first tongue and groove through the second tongue and groove.

[0015] Preferably, a first protrusion is formed on the outward end of the surface of the building main body, a second protrusion is provided on the side of the first flower bed steel secondary beam close to the building main body in the first flower bed structure, and second lap joints are formed at both ends of the second flower bed steel secondary beam. The two ends of the second flower bed steel secondary beam are respectively lapped on the first protrusion and the second protrusion through the second lap joints.

[0016] Preferably, the cantilevered steel main beam is connected to a shear wall or a column of the building main body; or the cantilevered steel main beam is formed by extending and cantilevering a structural beam of the building main body.

[0017] Preferably, the cantilever steel main beam is fixed to the building body through a mounting assembly, and the mounting assembly includes:

[0018] A first mounting plate, wherein the first mounting plate is fixed to the building body through a first embedded part, and a supporting seat is provided at the bottom of the first mounting plate;

[0019] The second mounting plate is fixed to the end plate of the cantilevered steel main beam, the bottom of the second mounting plate is supported by the support seat, and is assembled and installed with the first mounting plate by means of bolts through holes.

[0020] Preferably, the support seat is an L-shaped plate, which is fixed to the first mounting plate and forms a support slot between the L-shaped plate and the first mounting plate for inserting the second mounting plate.

[0021] Preferably, the top of the second mounting plate extends to the top surface of the cantilevered steel main beam to form a second top extension section, the position of the first mounting plate corresponds to the formation of a first top extension section, the first top extension section and the second top extension section are connected by bolt through holes; a reinforcing diagonal brace is provided between the second top extension section and the top surface of the cantilevered steel main beam.

[0022] Preferably, the top of the second mounting plate extends laterally to form a second side extension section, and the second side extension section is connected to the building body through an embedded bolt assembly.

[0023] Preferably, the second flower bed steel secondary beam and the second flower bed bottom plate in the second flower bed structure are prefabricated into an L shape, and one side of the second flower bed bottom plate is connected to the second flower bed steel secondary beam;

[0024] The second flower bed structure further comprises a reinforcing rib and a side rib, wherein the reinforcing rib is U-shaped and is correspondingly arranged on the second flower bed bottom plate. The side rib is arranged on a side of the second flower bed bottom plate relatively away from the second flower bed steel secondary beam.

[0025] Preferably, the first flower bed steel secondary beam and the first flower bed bottom plate in the first flower bed structure are prefabricated into a U shape, and two side edges of the first flower bed bottom plate are respectively connected to two first flower bed steel secondary beams.

[0026] The beneficial effects of the utility model are:

[0027] Unitized assembly solution installation, no scaffolding is required for the entire balcony installation, greatly saving construction costs;

[0028] The balcony is made of steel instead of traditional concrete, which greatly reduces the balcony's deadweight, thereby reducing the cross-sectional dimensions of the structural components, especially reducing the internal force of the connection node between the main beam and the main structure, making it easier to design the node and install it.

[0029] The integrated components of the U-shaped and L-shaped flower beds utilize the side walls of the flower beds to bear the force, thus reducing the amount of steel used in the structure.

[0030] The cantilevered steel main beam and the main body of the building are connected by mortise and tenon (installation components) + high-strength bolts, which avoids on-site pouring and welding, greatly increases the convenience of connection, speeds up construction, and improves the reliability of connection.

[0031] Its unit assembly method greatly shortens the on-site construction period, and the standardized solution also helps to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A structural schematic diagram of the utility model is expressed.

[0033] Figure 2 The schematic diagram of module assembly of the utility model is expressed.

[0034] Figure 3 A structural schematic diagram of the second flower bed structure in the utility model is expressed.

[0035] Figure 4 A structural schematic diagram of the first flower bed structure in the utility model is expressed.

[0036] Figure 5 Another installation schematic diagram of the cantilevered steel main beam in the utility model is expressed.

[0037] Figure 6 A schematic diagram of the connection node between the cantilevered steel main beam and the building body in the utility model is expressed.

[0038] Figure 7 A structural schematic diagram of the installation components in the utility model is expressed. DETAILED DESCRIPTION

[0039] The following description is given to enable those skilled in the art to implement and use the utility model and incorporate it into specific application contexts. Various modifications, as well as various uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to a wide range of embodiments. Thus, the utility model is not limited to the embodiments given herein, but should be granted the broadest scope consistent with the principles and novel features disclosed herein.

[0040] In the following detailed description, many specific details are set forth to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the practice of the present invention need not be limited to these specific details. In other words, well-known structures and devices are shown in block diagram form without detailed display to avoid obscuring the present invention.

[0041] The reader is reminded of all documents and literature filed simultaneously with this specification and open to public inspection, and the contents of all such documents and literature are incorporated herein by reference. Unless otherwise directly stated, all features disclosed in this specification (including any attached claims, abstracts and drawings) can be replaced by alternative features for achieving the same, equivalent or similar purposes. Therefore, unless otherwise explicitly stated, each feature disclosed is only an example of a group of equivalent or similar features.

[0042] Note that, where used, the symbols left, right, front, back, top, bottom, forward, reverse, clockwise and counterclockwise are used only for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative position and / or direction between the various parts of the object. In addition, the terms "first" and "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Note that, in the case of use, further, preferably, further and more preferably are simple beginnings for explaining another embodiment based on the previous embodiment, and the content of further, preferably, further or more preferably followed by the above embodiment is combined with the previous embodiment as a complete composition of another embodiment. Several further, preferably, further or more preferably settings followed by the same embodiment can be arbitrarily combined to form another embodiment.

[0045] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the accompanying drawings and specific embodiments are only exemplary and should not be construed as limiting the scope of protection of the present invention.

[0046] See also Figure 1 to Figure 7 This embodiment discloses a modular assembled large cantilever balcony, which comprises at least two cantilever steel main beams 1, a first flower bed structure 2, a second flower bed structure 3 and a platform structure 4. The two cantilever steel main beams 1 are arranged side by side with a spacing, one end of the cantilever steel main beam 1 is fixed to the building body 5, and the other end is cantilevered outside; the first flower bed structure 2 is assembled between the cantilevered ends of the two cantilever steel main beams 1.

[0047] Further, please combine Figure 1 , Figure 2 and Figure 4The first flower bed structure 2 includes two first flower bed steel secondary beams 21 and a first flower bed bottom plate 22. The two first flower bed steel secondary beams 21 are assembled and fixed between the two cantilevered steel main beams 1, and the first flower bed bottom plate 22 is fixed between the two first flower bed steel secondary beams 21; a balcony platform area is formed between the first flower bed structure 2 and the building main body 5; and the platform structure 4 is installed in the platform area between the first flower bed structure 2 and the building main body 5; the second flower bed structure 3 is installed between the platform structure 4 and the cantilevered steel main beam 1, and the second flower bed structure 3 includes at least a second flower bed steel secondary beam 31 and a second flower bed bottom plate 32. The second flower bed steel secondary beam 31 is assembled and fixed between the first flower bed steel secondary beam 21 and the building main body 5, and the second flower bed bottom plate 32 is fixed between the first flower bed steel secondary beam 21 and the cantilevered steel main beam 1.

[0048] As a preferred implementation of this embodiment, please combine Figure 1 , Figure 2 and Figure 3 The number of the second flower bed structures 3 is two, and the two second flower bed structures 3 are located on both sides of the platform structure 4. The second flower bed steel secondary beams 31 of the two second flower bed structures 3, the building body 5, and the first flower bed structure 2 form a balcony platform area. The platform structure 4 is located in the platform area to form an activity area for people to move around. The second flower bed structures 3 on both sides and the first flower bed structure 2 in the front are used for landscape design such as flower, bird, and fish ponds.

[0049] Specifically, the platform structure 4 at least includes a platform plate, which is laid on the platform area and fixed to at least the first flower bed structure 2 and the second flower bed structure 3. Preferably, the platform plate is laid on the second flower bed steel secondary beams 31 in the two second flower bed structures 3 and welded thereto. The front edge thereof can also be welded to the first flower bed steel secondary beam 21 in the first flower bed structure 2 which is relatively close thereto.

[0050] Furthermore, in order to improve the strength of the structural support, the first flower bed bottom plate 22, the second flower bed bottom plate 32 and the platform plate are preferably corrugated steel plates.

[0051] See also Figure 1 , Figure 2 In order to facilitate design and activities, a preferred implementation method in this embodiment is that the first flower bed bottom plate 22 is connected to the bottom of the first flower bed steel secondary beam 21, and a first flower bed is formed above the first flower bed bottom plate 22. At this time, the first flower bed is in a trough shape and has a larger accommodating space; similarly, the second flower bed bottom plate 32 is connected to the bottom of the second flower bed steel secondary beam 31, and a second flower bed is formed above the second flower bed bottom plate 32; further, a platform plate is at least laid on the top of two second flower bed steel secondary beams 31, and a platform activity area is formed above the platform plate.

[0052] The first flower bed steel secondary beam 21 is assembled and then welded to the cantilever steel main beam 1. Specifically, the cantilever steel main beam 1 is provided with a first tongue and groove 10, and the end of the first flower bed steel secondary beam 21 is provided with a second tongue and groove 210, and the first flower bed steel secondary beam 21 is laid on the first tongue and groove 10 through the second tongue and groove 210. Preferably, the first tongue and groove 10 and the second tongue and groove 210 are L-shaped structures that fit each other.

[0053] Further, please combine Figure 2 and Figure 3 , a first protrusion 50 is formed at the outer end of the building body 5, a second protrusion is provided on the side of the first flower bed steel secondary beam 21 close to the building body 5 in the first flower bed structure 2 (not shown in the figure, but the structural function is equivalent to the first protrusion 50), and second overlap ports 310 are formed at both ends of the second flower bed steel secondary beam 31. The two ends of the second flower bed steel secondary beam 31 are overlapped with the first protrusion 50 and the second protrusion respectively through the second overlap ports 310. Preferably, the first protrusion 50 can be formed when the building body 5 is poured or connected afterwards, and can be selected as a concrete protrusion or a steel structure protrusion, etc.; the second protrusion on the side of the first flower bed steel secondary beam 21 is directly implemented as a steel structure, which can be welded on the first flower bed steel secondary beam 21.

[0054] The cantilevered steel main beam 1 is the load-bearing body of the structure, and there are many implementation methods:

[0055] First, the cantilever steel main beam 1 is connected to the shear wall or column of the building body 5, and specifically, one end of the cantilever steel main beam 1 is buried in the shear wall or column and fixed to the steel structure in the shear wall or column;

[0056] Second, see Figure 1 The cantilevered steel main beam 1 is formed by cantilevering the structural beam of the building main body 5. When the extension direction of the cantilevered steel main beam 1 is consistent with the extension direction of the structural beam, the structural beam is directly extended outward to form the cantilevered steel main beam 1. At this time, the structural beam is also implemented as a steel structural beam;

[0057] Third, please combine Figure 5 , Figure 6 and Figure 7 The cantilever steel main beam 1 is fixed to the building main body 5 through the installation assembly 6, wherein the installation assembly 6 includes a first installation plate 61 and a second installation plate 62. Further, the first installation plate 61 is fixed to the building main body 5 through a first embedded part 613, and a support seat 612 is provided at the bottom of the first installation plate 61; the second installation plate 62 is fixed to the end plate of the cantilever steel main beam 1, and its bottom is supported by the support seat 612, and is assembled and installed with the first installation plate 61 by means of bolts through holes. Preferably, the first embedded part 613 is a steel bar, one end of which is welded to the first installation plate 61 and the other end is embedded in the building main body 5.

[0058] Preferably, the support seat 612 is an L-shaped plate, which is fixed to the first mounting plate 61 and forms a support slot for the second mounting plate 62 to be inserted between the first mounting plate 61. Further, the top of the second mounting plate 62 extends to the top surface of the cantilevered steel main beam 1 to form a second top extension section 621, and the first mounting plate 61 forms a first top extension section 611 at a corresponding position, and the first top extension section 611 and the second top extension section 621 are connected by bolt holes; a reinforcing brace 623 is provided between the second top extension section 621 and the top surface of the cantilevered steel main beam 1. Preferably, the first top extension section 611 and the second top extension section 621 are also plate bodies, which are respectively extended from the first mounting plate 61 and the second mounting plate 62, and the first mounting plate 61 and the second mounting plate 62 are rigidly connected by the above-mentioned arrangement; the reinforcing brace 623 is a reinforcing plate, which is welded between the second top extension plate and the cantilevered steel main beam 1. Furthermore, in order to improve the stability of the connection node, the top of the second mounting plate 62 extends laterally to form a second side extension section 622, and the second side extension section 622 is connected to the building body 5 through an embedded bolt assembly. Specifically, the embedded sleeve 64 is embedded in the building body 5, and the embedded bolt 641 is directly assembled and installed in the embedded sleeve 64 during installation.

[0059] Similarly, a hole is opened on the first top extension section 611 , and an embedded sleeve 63 is embedded inwardly at the hole position. The second top extension section 621 has a corresponding hole and is assembled and installed through embedded bolts 631 .

[0060] As a preferred implementation method of this embodiment, this balcony structure is to realize a modular solution of factory prefabrication and on-site assembly, which is convenient for on-site assembly. Because the first flower bed structure 2, the second flower bed structure 3 and the platform plate are all prefabricated in the factory. Specifically, the second flower bed steel secondary beam 31 and the second flower bed bottom plate 32 in the second flower bed structure 3 are prefabricated into an L shape, wherein one side of the second flower bed bottom plate 32 is connected to the second flower bed steel secondary beam 31. In order to strengthen the overall structural strength, the second flower bed structure 3 also includes reinforcing ribs 33 and side ribs 34. The reinforcing ribs 33 are U-shaped and are correspondingly arranged on the second flower bed bottom plate 32, while the side ribs 34 are arranged on the second flower bed bottom plate 32 on one side relatively away from the second flower bed steel secondary beam 31, and can also be welded to the cantilever steel main beam 1 through the side ribs 34 during installation.

[0061] Furthermore, the first flower bed steel secondary beam 21 and the first flower bed bottom plate 22 in the first flower bed structure 2 are prefabricated into a U-shape, wherein both side edges of the first flower bed bottom plate 22 are respectively connected to the two first flower bed steel secondary beams 21 .

[0062] The beneficial effects of this embodiment are:

[0063] Unitized assembly solution installation, no scaffolding is required for the entire balcony installation, greatly saving construction costs;

[0064] The balcony is made of steel instead of traditional concrete, which greatly reduces the balcony's deadweight, thereby reducing the cross-sectional dimensions of the structural components, especially reducing the internal force of the connection node between the main beam and the main structure, making it easier to design the node and install it.

[0065] The integrated components of the U-shaped and L-shaped flower beds utilize the side walls of the flower beds to bear the force, thus reducing the amount of steel used in the structure.

[0066] The cantilevered steel main beam and the main body of the building are connected by mortise and tenon (installation components) + high-strength bolts, which avoids on-site pouring and welding, greatly increases the convenience of connection, speeds up construction, and improves the reliability of connection.

[0067] Its unit assembly method greatly shortens the on-site construction period, and the standardized solution also helps to reduce costs.

[0068] Furthermore, the utility model is described in detail above in conjunction with the embodiments of the drawings, and a person skilled in the art can make various variations of the utility model according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. Modular assembled large cantilever balcony, characterized by: At least: two cantilever steel main beams, the two cantilever steel main beams are arranged side by side with a spacing, one end of the cantilever steel main beam is fixed to the main body of the building, and the other end is cantilevered outside; A first flower bed structure, the first flower bed structure is assembled between the cantilevered ends of the two cantilevered steel main beams; the first flower bed structure includes two first flower bed steel secondary beams and a first flower bed bottom plate, the two first flower bed steel secondary beams are assembled and fixed between the two cantilevered steel main beams, and the first flower bed bottom plate is fixed between the two first flower bed steel secondary beams; a balcony platform area is formed between the first flower bed structure and the main building; A platform structure, the platform structure being installed in the platform area between the first flower bed structure and the building body; The second flower bed structure is installed between the platform structure and the cantilevered steel main beam, the second flower bed structure at least includes a second flower bed steel secondary beam and a second flower bed bottom plate, the second flower bed steel secondary beam is assembled and fixed between the first flower bed steel secondary beam and the building main body, and the second flower bed bottom plate is fixed between the first flower bed steel secondary beam and the cantilevered steel main beam.

2. The modular assembled large cantilevered balcony according to claim 1, characterized in that: The number of the second flower bed structures is two, and the second flower bed structures are respectively located on both sides of the platform structure. The second flower bed steel secondary beams of the second flower bed structures, the building main body and the first flower bed structure enclose the platform area of ​​the balcony.

3. The modular assembled large cantilevered balcony according to claim 2, characterized in that: The platform structure at least includes a platform plate, which is laid on the platform area and fixed to at least the first flower bed structure and the second flower bed structure.

4. The modular assembled large cantilevered balcony according to claim 3, characterized in that: The first flower bed bottom plate, the second flower bed bottom plate and the platform plate are corrugated steel plates.

5. The modular assembled large cantilevered balcony according to claim 3, characterized in that: The first flower bed bottom plate is connected to the bottom of the first flower bed steel secondary beam, and a first flower bed is formed above the first flower bed bottom plate; The second flower bed bottom plate is connected to the bottom of the second flower bed steel secondary beam, and a second flower bed is formed above the second flower bed bottom plate; The platform plate is at least laid on the top of the second flower bed steel secondary beam, and a platform activity area is formed above the platform plate.

6. The modular assembled large cantilevered balcony according to claim 1, characterized in that: The cantilevered steel main beam is provided with a first tongue and groove, the end of the first flower bed steel secondary beam is provided with a second tongue and groove, and the first flower bed steel secondary beam is erected on the first tongue and groove through the second tongue and groove.

7. The modular assembled large cantilevered balcony according to claim 1, characterized in that: A first protrusion is formed at the outer end of the surface of the building main body, a second protrusion is provided on the side of the first flower bed steel secondary beam close to the building main body in the first flower bed structure, and second lap joints are formed at both ends of the second flower bed steel secondary beam. The two ends of the second flower bed steel secondary beam are respectively overlapped with the first protrusion and the second protrusion through the second lap joints.

8. The modular assembled large cantilevered balcony according to claim 1, characterized in that: The cantilevered steel main beam is connected to the shear wall or column of the building main body; or the cantilevered steel main beam is formed by extending and cantilevering the structural beam of the building main body.

9. The modular assembled large cantilevered balcony according to claim 1, characterized in that: The cantilever steel main beam is fixed to the building body through an installation assembly, and the installation assembly includes: A first mounting plate, wherein the first mounting plate is fixed to the building body through a first embedded part, and a supporting seat is provided at the bottom of the first mounting plate; The second mounting plate is fixed to the end plate of the cantilevered steel main beam, the bottom of the second mounting plate is supported by the support seat, and is assembled and installed with the first mounting plate by means of bolts through holes.

10. The modular assembled large cantilevered balcony according to claim 9, characterized in that: The support seat is an L-shaped plate, which is fixed to the first mounting plate and forms a support slot for the second mounting plate to be inserted between the L-shaped plate and the first mounting plate.

11. The modular assembled large cantilevered balcony according to claim 9, characterized in that: The top of the second mounting plate extends to the top surface of the cantilevered steel main beam to form a second top extension section, and the position of the first mounting plate corresponds to the formation of a first top extension section. The first top extension section and the second top extension section are connected by bolt through holes; a reinforcing diagonal brace is provided between the second top extension section and the top surface of the cantilevered steel main beam.

12. The modular assembled large cantilevered balcony according to claim 9, characterized in that: The top of the second mounting plate extends laterally to form a second side extension section, and the second side extension section is connected to the building body through an embedded bolt assembly.

13. The modular assembled large cantilevered balcony according to claim 1, characterized in that: The second flower bed steel secondary beam and the second flower bed bottom plate in the second flower bed structure are prefabricated into an L shape, and one side of the second flower bed bottom plate is connected to the second flower bed steel secondary beam; The second flower bed structure also includes reinforcing ribs and side ribs. The reinforcing ribs are U-shaped and are correspondingly arranged on the second flower bed bottom plate. The side ribs are arranged on a side edge of the second flower bed bottom plate relatively away from the second flower bed steel secondary beam.

14. The modular assembled large cantilevered balcony according to claim 1, characterized in that: The first flower bed steel secondary beam and the first flower bed bottom plate in the first flower bed structure are prefabricated into a U shape, and two side edges of the first flower bed bottom plate are respectively connected to the two first flower bed steel secondary beams.

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