Beam bearing type fabricated balcony and construction method thereof

Abstract

The invention belongs to the technical field of constructional engineering, and discloses a beam bearing type fabricated balcony and a construction method thereof. A prefabricated balcony is temporarily locked with a main body structure through a temporary locking structure; the space anchoring structure comprises a first steel bar pre-buried in the balcony beam, a second steel bar pre-buried in the balcony plate, and a third steel bar and a fourth steel bar pre-buried in the main body structure, the first steel bar and the third steel bar can spatially intersect to form a first closed frame, and a first stress longitudinal bar is arranged in the first closed frame in a penetrating mode; stirrups are hooped on the outer side of an integral framework formed by the first closed framework and the first stress longitudinal bars; the second steel bars and the fourth steel bars can be spatially crossed to form a second closed frame, and second stress longitudinal bars are arranged in the second closed frame in a penetrating mode. And the cast-in-place concrete layer is filled between the prefabricated balcony and the main body structure and wraps the temporary locking structure and the space anchoring structure. A temporary supporting structure does not need to be erected, and the integrity and the anti-cracking and anti-seepage performance of the connecting joint can be improved.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to a beam-load-bearing prefabricated balcony and its construction method. Background Technology

[0002] With the continuous advancement of industrialization in the construction industry, prefabricated components have become a core direction for promoting the transformation and upgrading of the construction industry due to their advantages such as controllable quality from factory prefabrication, high on-site installation efficiency, and environmental friendliness. Among them, prefabricated balconies, as key components of building exteriors, directly affect the building's functionality, structural safety, and aesthetic quality. Beam-load-bearing prefabricated balconies, with their strong load-bearing stability, wide range of adaptable spans, and diverse application scenarios, are widely used in various engineering projects, including residential and public buildings.

[0003] However, existing beam-bearing prefabricated balconies often connect to the main structure by overlapping and casting the balcony beams with the frame beams of the main structure, or by installing post-cast corbels. While this ensures the integrity of the connection joint to some extent, it requires the erection of full-span scaffolding or adjustable top bracing as temporary support structures. The erection and dismantling of these temporary support structures are cumbersome, taking up a significant portion of the construction time. This not only greatly increases labor, material, and equipment costs but also, because it must be constructed simultaneously with the main structure, severely reduces the flexibility of the overall project schedule. To reduce temporary supports and simplify the construction process, related technologies have improved the connection structure and methods of beam-bearing prefabricated balconies. However, problems such as insufficient integrity of the connection joint and poor crack resistance and seepage prevention at the joints still commonly exist.

[0004] Therefore, there is an urgent need to propose a beam-load-bearing prefabricated balcony and its construction method to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a beam-bearing prefabricated balcony and its construction method, which eliminates the need for temporary support structures and improves the integrity, crack resistance and seepage prevention performance of the connection nodes.

[0006] Based on the above concept, the technical solution adopted by this invention is as follows:

[0007] In a first aspect, the present invention provides a beam-bearing prefabricated balcony, including a prefabricated balcony, wherein the prefabricated balcony includes two balcony beams and a balcony slab, the balcony slab is connected between the two balcony beams, and the prefabricated balcony is interconnected with the main structure through a temporary locking structure, a spatial anchoring structure and a cast-in-place concrete layer.

[0008] The prefabricated balcony is temporarily locked to the main structure by the temporary locking structure; the spatial anchoring structure includes a first reinforcing bar embedded in the balcony beam, a second reinforcing bar embedded in the balcony slab, and a third and fourth reinforcing bar embedded in the main structure. The first and third reinforcing bars can spatially intersect to form a first closed frame. A first longitudinal reinforcing bar is inserted within the first closed frame. Stirrups are attached to the outside of the integral skeleton formed by the first closed frame and the first longitudinal reinforcing bar. The second and fourth reinforcing bars can spatially intersect to form a second closed frame. A second longitudinal reinforcing bar is inserted within the second closed frame. The cast-in-place concrete layer fills the space between the prefabricated balcony and the main structure and wraps around the temporary locking structure and the spatial anchoring structure.

[0009] In some embodiments, the temporary locking structure includes a first snap-fit ​​component embedded in the balcony beam and a second snap-fit ​​component embedded in the main structure, wherein the first snap-fit ​​component can snap-fit ​​with the second snap-fit ​​component.

[0010] In some embodiments, the first card connector is configured as a T-type card assembly, and the second card connector is configured as a C-type slot assembly.

[0011] In some embodiments, a first reinforcing cage is provided inside the balcony beam, and a second reinforcing cage is provided inside the main structure. The first snap-fit ​​component is connected to the first reinforcing cage, and the second snap-fit ​​component is connected to the second reinforcing cage.

[0012] In some embodiments, the main structure includes two shear walls and a frame beam connecting the two shear walls. The second reinforcing cage is provided inside each of the two shear walls. The third reinforcing bar is embedded in the shear wall, and the fourth reinforcing bar is embedded in the frame beam.

[0013] In some embodiments, the balcony beam is further embedded with a first positioning steel bar, the first positioning steel bar being spaced apart from the first steel bar, the main structure is further embedded with a second positioning steel bar, the second positioning steel bar being spaced apart from the third steel bar, the first positioning steel bar being able to be aligned with the second positioning steel bar, and the stirrups being attached to the aligned portion of the first positioning steel bar and the second positioning steel bar, as well as to the outside of the integral skeleton composed of the first closed frame and the first stressed longitudinal steel bar.

[0014] In some embodiments, the first reinforcing bar, the second reinforcing bar, the third reinforcing bar, and the fourth reinforcing bar are all configured as U-shaped bars.

[0015] In some embodiments, multiple second reinforcing bars are provided, and the multiple second reinforcing bars are evenly spaced along the length direction of the balcony slab. Multiple fourth reinforcing bars are provided, and the multiple fourth reinforcing bars are provided in a one-to-one correspondence with the multiple second reinforcing bars.

[0016] Secondly, the present invention provides a construction method for a beam-load-bearing prefabricated balcony, employing the beam-load-bearing prefabricated balcony described in any one of the first aspects; the construction method for the beam-load-bearing prefabricated balcony includes the following steps:

[0017] S1. Hoisting and temporary fixing: Hoist the prefabricated balcony and temporarily fix it to the main structure through the temporary locking structure;

[0018] S2. Constructing a spatial anchoring structure: The first reinforcing bar and the third reinforcing bar spatially intersect to form the first closed frame, the first stressed longitudinal reinforcing bar is inserted into the first closed frame, and the stirrups are tied to the outside of the integral skeleton formed by the first closed frame and the first stressed longitudinal reinforcing bar; and the second reinforcing bar and the fourth reinforcing bar spatially intersect to form the second closed frame, and the second stressed longitudinal reinforcing bar is inserted into the second closed frame.

[0019] S3. Cast-in-place integration and curing: A casting formwork is erected in the connection area between the precast balcony and the main structure, and concrete is poured to form the cast-in-place concrete layer. After the cast-in-place concrete layer has been cured, the casting formwork is removed.

[0020] In some embodiments, prior to step S1, the method further includes:

[0021] The prefabricated balconies are prefabricated in the factory, while the main structure is constructed simultaneously.

[0022] The beneficial effects of this invention are:

[0023] The beam-bearing prefabricated balcony provided by this invention achieves initial positioning of the prefabricated balcony and the main structure through a temporary locking structure, eliminating the need for temporary support structures. This significantly simplifies the construction process, shortens the construction period, helps reduce costs, and improves the flexibility of project scheduling. At the same time, by constructing a spatial anchoring structure, a stable spatial force-bearing system is formed. Combined with the wrapping effect of the cast-in-place concrete layer, this effectively enhances the overall integrity of the connection between the prefabricated balcony and the main structure, and also helps improve the bending and shear resistance, crack resistance, and seepage prevention performance at the joint between the two, fully ensuring the structural safety and usability of the beam-bearing prefabricated balcony.

[0024] The construction method of the beam-bearing prefabricated balcony provided by the present invention, by adopting the above-mentioned beam-bearing prefabricated balcony, can eliminate the traditional temporary support structure erection and dismantling process through hoisting and temporary fixing steps, and then construct the spatial anchoring structure and pour concrete in sequence. The construction process is simple and clear, and the steps are smoothly connected, which can take into account both construction convenience and connection structure reliability. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0026] Figure 1 This is a partial structural schematic diagram of a prefabricated balcony provided in an embodiment of the present invention;

[0027] Figure 2 This is a partial structural diagram of the main structure provided in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the second reinforcing cage provided in an embodiment of the present invention;

[0029] Figure 4 This is a structural schematic diagram of a prefabricated balcony provided in an embodiment of the present invention;

[0030] Figure 5 This is a side view of the prefabricated balcony provided in an embodiment of the present invention. Figure 1 ;

[0031] Figure 6 This is a side view of the prefabricated balcony provided in an embodiment of the present invention. Figure 2 ;

[0032] Figure 7 This is a schematic diagram of the main structure provided in an embodiment of the present invention;

[0033] Figure 8 This is a side view of the main structure provided in the embodiment of the present invention. Figure 1 ;

[0034] Figure 9 This is a side view of the main structure provided in the embodiment of the present invention. Figure 2 ;

[0035] Figure 10 This is a structural diagram illustrating the temporary locking of the prefabricated balcony to the main structure according to an embodiment of the present invention.

[0036] Figure 11This is a side view of the balcony beam when the prefabricated balcony is temporarily locked to the main structure, as provided in an embodiment of the present invention.

[0037] Figure 12 This is a side view of the balcony slab when the prefabricated balcony is temporarily locked to the main structure, as provided in an embodiment of the present invention.

[0038] Figure 13 This is a schematic diagram of the structure after the first and second load-bearing longitudinal ribs are installed, according to an embodiment of the present invention.

[0039] Figure 14 This is a side view of the balcony beam after the first load-bearing longitudinal reinforcement has been installed, as provided in an embodiment of the present invention.

[0040] Figure 15 This is a side view of the balcony slab after the second load-bearing longitudinal reinforcement has been installed, as provided in an embodiment of the present invention.

[0041] Figure 16 yes Figure 14 A schematic diagram of the structure after adding stirrups.

[0042] In the picture:

[0043] 1. Precast balcony; 11. Balcony beam; 12. Balcony slab;

[0044] 2. Main structure; 21. Second reinforcing cage; 22. Shear wall; 23. Frame beam;

[0045] 31. First reinforcing bar; 32. Second reinforcing bar; 33. Third reinforcing bar; 34. Fourth reinforcing bar; 35. First longitudinal reinforcing bar; 36. Stirrup; 37. Second longitudinal reinforcing bar; 38. First positioning reinforcing bar; 39. Second positioning reinforcing bar;

[0046] 4. First card connector;

[0047] 5. Second card connector. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0050] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0051] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0052] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0053] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0055] like Figures 1-16 As shown, this embodiment provides a beam-bearing prefabricated balcony, including a prefabricated balcony 1. The prefabricated balcony 1 includes two balcony beams 11 and a balcony slab 12. The balcony slab 12 is connected between the two balcony beams 11. The prefabricated balcony 1 and the main structure 2 are interconnected through a temporary locking structure, a spatial anchoring structure and a cast-in-place concrete layer.

[0056] The prefabricated balcony 1 is temporarily locked to the main structure 2 via a temporary locking structure. The spatial anchoring structure includes a first reinforcing bar 31 embedded in the balcony beam 11, a second reinforcing bar 32 embedded in the balcony slab 12, and a third and fourth reinforcing bar 33 embedded in the main structure 2. The first and third reinforcing bars 31 and 33 can spatially intersect to form a first closed frame. A first longitudinal reinforcing bar 35 is threaded within the first closed frame, and stirrups 36 are attached to the outer side of the integral skeleton formed by the first closed frame and the first longitudinal reinforcing bar 35. The second and fourth reinforcing bars 32 and 34 can spatially intersect to form a second closed frame, and a second longitudinal reinforcing bar 37 is threaded within the second closed frame. A cast-in-place concrete layer fills the space between the prefabricated balcony 1 and the main structure 2, and is wrapped around the temporary locking structure and the spatial anchoring structure.

[0057] The prefabricated balcony 1 can be initially positioned relative to the main structure 2 using a temporary locking structure, eliminating the need for additional temporary support structures. During the initial positioning of the prefabricated balcony 1, the first reinforcing bar 31 on the balcony beam 11 spatially intersects with the third reinforcing bar 33 on the main structure 2 to form a first closed frame, and the second reinforcing bar 32 on the balcony slab 12 spatially intersects with the fourth reinforcing bar 34 on the main structure 2 to form a second closed frame. Then, a first longitudinal reinforcing bar 35 is inserted into the first closed frame, and a second longitudinal reinforcing bar 37 is inserted into the second closed frame. Stirrups 36 are then placed on the outside of the overall skeleton formed by the first closed frame and the first longitudinal reinforcing bar 35, thus completing the construction of the spatial anchoring structure. This creates a spatial load-bearing system between the prefabricated balcony 1 and the main structure 2, which offers better bending and shear resistance compared to planar reinforcement. Finally, a cast-in-place concrete layer is poured between the prefabricated balcony 1 and the main structure 2, encasing both the temporary locking structure and the spatial anchoring structure within this layer.

[0058] The beam-bearing prefabricated balcony provided in this embodiment achieves the initial positioning of the prefabricated balcony 1 and the main structure 2 through a temporary locking structure, eliminating the need for temporary support structures. This significantly simplifies the construction process, shortens the construction period, helps reduce costs, and improves the flexibility of project scheduling. At the same time, the construction of a spatial anchoring structure forms a stable spatial force-bearing system. Combined with the wrapping effect of the cast-in-place concrete layer, it effectively enhances the integrity of the connection between the prefabricated balcony 1 and the main structure 2, and also helps improve the bending and shear resistance, crack resistance, and seepage prevention performance at the joint between the two, fully ensuring the structural safety and usability of the beam-bearing prefabricated balcony.

[0059] Correspondingly, this embodiment provides a construction method for a beam-load-bearing prefabricated balcony, employing the aforementioned beam-load-bearing prefabricated balcony. The construction method for this beam-load-bearing prefabricated balcony includes the following steps:

[0060] S1. Hoisting and Temporary Fixing: Hoist the prefabricated balcony 1 and temporarily fix it to the main structure 2 using a temporary locking structure. Figures 10-12 );

[0061] S2. Constructing a spatial anchoring structure: The first reinforcing bar 31 and the third reinforcing bar 33 spatially intersect to form a first closed frame, and the first stressed longitudinal reinforcing bar 35 is inserted into the first closed frame. Stirrups 36 are tied to the outside of the integral skeleton formed by the first closed frame and the first stressed longitudinal reinforcing bar 35; and the second reinforcing bar 32 and the fourth reinforcing bar 34 spatially intersect to form a second closed frame, and the second stressed longitudinal reinforcing bar 37 is inserted into the second closed frame. Figures 13-16 );

[0062] S3. Cast-in-place integration and curing: A casting formwork is erected in the connection area between the precast balcony 1 and the main structure 2, and concrete is poured to form a cast-in-place concrete layer. The casting formwork is removed after the cast-in-place concrete layer has been cured.

[0063] The construction method for the beam-bearing prefabricated balcony provided in this embodiment, by adopting the above-mentioned beam-bearing prefabricated balcony, can eliminate the traditional temporary support structure erection and dismantling process through hoisting and temporary fixing steps, and then construct the spatial anchoring structure and pour concrete in sequence. The construction process is simple and clear, and the steps are smoothly connected, which can take into account both construction convenience and connection structure reliability.

[0064] Optionally, before step S1, the following steps are also included:

[0065] The prefabrication of balcony 1 is carried out in the factory, while the construction of the main structure 2 is carried out simultaneously. In other words, the prefabrication of balcony 1 and the construction of the main structure 2 on site can be carried out in parallel, improving the flexibility of the construction period.

[0066] like Figure 4 , Figure 7 , Figure 10 , Figure 11 As shown, in some embodiments, the temporary locking structure includes a first snap-fit ​​member 4 embedded in the balcony beam 11 and a second snap-fit ​​member 5 embedded in the main structure 2. The first snap-fit ​​member 4 can snap into the second snap-fit ​​member 5. In this way, by setting the temporary locking structure as a snap-fit ​​structure, the prefabricated balcony 1 and the main structure 2 can be quickly and temporarily positioned, and the operation is simple and reliable.

[0067] Optionally, the first snap-fit ​​component 4 is configured as a T-type snap-fit ​​assembly, and the second snap-fit ​​component 5 is configured as a C-type slot assembly. The two can be quickly and accurately snapped together.

[0068] like Figure 3 As shown, in some embodiments, a first reinforcing cage is provided inside the balcony beam 11, and a second reinforcing cage 21 is provided inside the main structure 2. A first fastener 4 is connected to the first reinforcing cage, and a second fastener 5 is connected to the second reinforcing cage 21. Specifically, the first fastener 4 can be bound to the first reinforcing cage via anchor bars, and the second fastener 5 can be bound to the second reinforcing cage 21 via anchor bars. The first reinforcing cage is not shown in the figure and can be constructed using... Figure 3 The second steel cage 21 is a similar structure.

[0069] With this configuration, the first and second steel cages 21 can effectively enhance the anchoring strength and connection reliability of the first snap-fit ​​4 and the second snap-fit ​​5, and effectively prevent the first snap-fit ​​4 and the second snap-fit ​​5 from loosening under stress.

[0070] like Figure 2 As shown, in some embodiments, the main structure 2 includes two shear walls 22 and a frame beam 23 connecting the two shear walls 22. A second steel cage 21 is provided inside each of the two shear walls 22, a third steel bar 33 is embedded in the shear wall 22, and a fourth steel bar 34 is embedded in the frame beam 23.

[0071] With this setup, the main structure 2 is composed of shear walls 22 on both sides and frame beam 23 in the middle, which is precisely matched with the structural layout of the balcony beams 11 at both ends and the balcony slab 12 in the middle of the precast balcony 1, so that the reinforcement layout is matched accordingly and the force transmission is more reasonable and smooth.

[0072] like Figure 5 , Figure 8 , Figure 16As shown, in some embodiments, the balcony beam 11 is also pre-embedded with a first positioning steel bar 38, which is spaced apart from the first steel bar 31. The main structure 2 is also pre-embedded with a second positioning steel bar 39, which is spaced apart from the third steel bar 33. The first positioning steel bar 38 can be aligned with the second positioning steel bar 39. The stirrup 36 is attached to the aligned part of the first positioning steel bar 38 and the second positioning steel bar 39, as well as the outside of the overall skeleton composed of the first closed frame and the first stressed longitudinal reinforcement 35.

[0073] By setting the first positioning steel bar 38 and the second positioning steel bar 39, it can not only assist the precise alignment and installation of the prefabricated balcony 1 and the main structure 2, but also provide reliable positioning support for the binding of the stirrups 36, making it easy for the stirrups 36 to be quickly and neatly bound to the alignment part and the outside of the overall frame, which is conducive to improving the construction efficiency and binding firmness of the stirrups 36.

[0074] like Figure 5 , Figure 6 , Figure 8 , Figure 9 As shown, in some embodiments, the first reinforcing bar 31, the second reinforcing bar 32, the third reinforcing bar 33, and the fourth reinforcing bar 34 are all configured as U-shaped bars. U-shaped bars can quickly complete spatial intersections and form a closed frame, which is convenient to form and has precise alignment.

[0075] Of course, in other embodiments, the first reinforcing bar 31, the second reinforcing bar 32, the third reinforcing bar 33 and the fourth reinforcing bar 34 can also be set as rectangular, L-shaped or the like, as long as the first reinforcing bar 31 and the third reinforcing bar 33 can intersect in space to form a first closed frame and the second reinforcing bar 32 and the fourth reinforcing bar 34 can intersect in space to form a second closed frame.

[0076] like Figure 4 , Figure 7 , Figure 10 As shown, in some embodiments, multiple second reinforcing bars 32 are provided, and the multiple second reinforcing bars 32 are evenly spaced along the length direction of the balcony slab 12. Multiple fourth reinforcing bars 34 are provided, and the multiple fourth reinforcing bars 34 are provided in a one-to-one correspondence with the multiple second reinforcing bars 32.

[0077] This design allows for a more uniform force distribution and smoother force transmission in the anchoring connection between the balcony slab 12 and the main structure 2, which helps to further improve the overall stability of the connection node between the precast balcony 1 and the main structure 2.

[0078] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A beam-load-bearing prefabricated balcony, characterized in that, The prefabricated balcony (1) includes two balcony beams (11) and a balcony slab (12). The balcony slab (12) is connected between the two balcony beams (11). The prefabricated balcony (1) and the main structure (2) are connected to each other through a temporary locking structure, a spatial anchoring structure and a cast-in-place concrete layer. The prefabricated balcony (1) is temporarily locked to the main structure (2) by the temporary locking structure; the spatial anchoring structure includes a first steel bar (31) embedded in the balcony beam (11), a second steel bar (32) embedded in the balcony slab (12), a third steel bar (33) and a fourth steel bar (34) embedded in the main structure (2), the first steel bar (31) and the third steel bar (33) can spatially intersect to form a first closed frame, a first longitudinal reinforcing bar (35) is provided in the first closed frame, and a stirrup (36) is provided on the outside of the overall skeleton formed by the first closed frame and the first longitudinal reinforcing bar (35); the second steel bar (32) and the fourth steel bar (34) can spatially intersect to form a second closed frame, a second longitudinal reinforcing bar (37) is provided in the second closed frame; the cast-in-place concrete layer is filled between the prefabricated balcony (1) and the main structure (2), and is wrapped around the temporary locking structure and the spatial anchoring structure.

2. The beam-bearing prefabricated balcony according to claim 1, characterized in that, The temporary locking structure includes a first snap-fit ​​member (4) embedded in the balcony beam (11) and a second snap-fit ​​member (5) embedded in the main structure (2). The first snap-fit ​​member (4) can snap-fit ​​with the second snap-fit ​​member (5).

3. The beam-bearing prefabricated balcony according to claim 2, characterized in that, The first card connector (4) is configured as a T-type card assembly, and the second card connector (5) is configured as a C-type slot assembly.

4. The beam-bearing prefabricated balcony according to claim 2, characterized in that, The balcony beam (11) is provided with a first steel cage, and the main structure (2) is provided with a second steel cage (21). The first snap-fit ​​(4) is connected to the first steel cage, and the second snap-fit ​​(5) is connected to the second steel cage (21).

5. The beam-bearing prefabricated balcony according to claim 4, characterized in that, The main structure (2) includes two shear walls (22) and a frame beam (23) connecting the two shear walls (22). The two shear walls (22) are each equipped with a second steel cage (21). The third steel bar (33) is embedded in the shear wall (22) and the fourth steel bar (34) is embedded in the frame beam (23).

6. The beam-bearing prefabricated balcony according to any one of claims 1 to 5, characterized in that, The balcony beam (11) is also pre-embedded with a first positioning steel bar (38), which is spaced apart from the first steel bar (31). The main structure (2) is also pre-embedded with a second positioning steel bar (39), which is spaced apart from the third steel bar (33). The first positioning steel bar (38) can be aligned with the second positioning steel bar (39). The stirrup (36) is attached to the aligned part of the first positioning steel bar (38) and the second positioning steel bar (39), as well as the outside of the overall skeleton composed of the first closed frame and the first stressed longitudinal reinforcement (35).

7. The beam-bearing prefabricated balcony according to any one of claims 1 to 5, characterized in that, The first reinforcing bar (31), the second reinforcing bar (32), the third reinforcing bar (33) and the fourth reinforcing bar (34) are all U-shaped bars.

8. The beam-bearing prefabricated balcony according to any one of claims 1 to 5, characterized in that, Multiple second reinforcing bars (32) are provided, and the multiple second reinforcing bars (32) are evenly spaced along the length direction of the balcony slab (12). Multiple fourth reinforcing bars (34) are provided, and the multiple fourth reinforcing bars (34) are provided in a one-to-one correspondence with the multiple second reinforcing bars (32).

9. A construction method for beam-load-bearing prefabricated balconies, characterized in that, The beam-bearing prefabricated balcony adopts any one of claims 1 to 8; the construction method of the beam-bearing prefabricated balcony includes the following steps: S1. Hoisting and temporary fixing: Hoist the prefabricated balcony (1) and temporarily fix the prefabricated balcony (1) to the main structure (2) through the temporary locking structure; S2. Constructing a spatial anchoring structure: The first reinforcing bar (31) and the third reinforcing bar (33) intersect spatially to form the first closed frame, the first stressed longitudinal reinforcing bar (35) is inserted into the first closed frame, and the stirrups (36) are tied to the outside of the overall skeleton formed by the first closed frame and the first stressed longitudinal reinforcing bar (35); and the second reinforcing bar (32) and the fourth reinforcing bar (34) intersect spatially to form the second closed frame, and the second stressed longitudinal reinforcing bar (37) is inserted into the second closed frame. S3. Cast-in-place integration and curing: A casting template is set up in the connection area between the precast balcony (1) and the main structure (2), and concrete is poured to form the cast-in-place concrete layer. The casting template is removed after the cast-in-place concrete layer has been cured.

10. The construction method of the beam-bearing prefabricated balcony according to claim 9, characterized in that, Before step S1, the method further includes: The prefabricated balcony (1) is prefabricated in the factory, and the main structure (2) is constructed at the same time.

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