Connecting structure of prefabricated bay window and construction method

Abstract

The invention discloses a prefabricated bay window connecting structure and a construction method, and relates to the technical field of prefabricated bay window construction, the prefabricated bay window connecting structure comprises a building floor, a building wall and a prefabricated bay window assembly, and the prefabricated bay window assembly comprises two groups of bay window stand columns, an upper bay window plate and a lower bay window plate; the upper bay window plate and the lower bay window plate are both connected between the two sets of bay window stand columns, a bay window supporting table is arranged at the bottom of the lower bay window plate, and a reverse ridge is connected to one side of the bay window supporting table. The overall prefabricated bay window is changed into the cast-in-place bay window module assembly, so that the weight of the bay window is reduced, the hoisting difficulty is reduced, the prefabricated bay window assembly can be finely adjusted after being installed, all the assemblies are connected through the slotted holes, the prefabricated bay window assembly can form a whole after being cast, and the assembly structure is simple, convenient and practical. And the integrity of the bay window and the whole bay window is guaranteed through a connecting structure of the bay window, a building floor and a building wall.

Description

Technical Field

[0001] This application relates to the field of prefabricated bay window construction technology, and more specifically, to a connection structure and construction method for a prefabricated bay window. Background Technology

[0002] With the advancement of construction technology and the increasing demands for construction speed and cost reduction, the construction method of prefabricated building components has gradually become the mainstream of construction. Prefabricated components refer to the standardized processing of reinforced concrete components or other material components under mechanized conditions at the production and manufacturing site.

[0003] Among them, bay window modules are more difficult to construct and install than prefabricated wall components due to their special structure. There are two types of bay windows: inward and outward. Outward bay windows are convex, while inward bay windows are flat and concave. Since outward bay windows are independent of the outdoors, their construction is more difficult.

[0004] Existing prefabricated bay window components are usually manufactured as a single unit. However, due to their large overall weight, they are difficult to hoist and have low safety, posing a risk of falling. Furthermore, existing prefabricated bay window components cannot be adjusted on-site, and the construction site environment is complex. After hoisting, measurement or construction errors may prevent the bay window from being installed, thereby increasing construction costs.

[0005] Therefore, a connection structure and construction method for prefabricated bay windows are proposed to address the aforementioned technical issues. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, this application provides a connection structure and construction method for a prefabricated bay window to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this application provides the following technical solution: a connection structure for a prefabricated bay window, comprising a building floor slab, a building wall, and a prefabricated bay window assembly, wherein a bay window platform is provided at one end of the building floor slab, and the prefabricated bay window assembly is connected to the bay window platform, and the building wall is connected to both sides of the prefabricated bay window assembly;

[0008] The prefabricated bay window assembly includes two sets of bay window columns, an upper bay window panel, and a lower bay window panel. The upper and lower bay window panels are connected between the two sets of bay window columns. Two sets of supporting panels are provided between the upper and lower bay window panels. A bay window support platform is provided at the bottom of the lower bay window panel, and a backsplash is connected to one side of the bay window support platform.

[0009] Preferably, the top of the building floor slab is provided with multiple sets of wall steel frames and multiple sets of inverted U-shaped reinforcing bars, and the multiple sets of wall steel frames are arranged in an array within the building wall, and the multiple sets of inverted U-shaped reinforcing bars are arranged in an array within the curb. The building wall and the curb are both cast integrally.

[0010] Preferably, the building wall includes multiple sets of wall templates, which are wrapped around the outside of multiple sets of wall steel frames. The wall steel frames include multiple sets of longitudinal support bars and multiple sets of transverse support bars, and the multiple sets of transverse support bars are evenly tied between the multiple sets of longitudinal support bars.

[0011] Preferably, the lower bay window slab is provided with multiple sets of inverted L-shaped anchoring steel bars on the side near the sill, and the multiple sets of anchoring steel bars are respectively inserted into multiple sets of inverted U-shaped inserts, and multiple sets of horizontal reinforcing steel bars are inserted in an array below the inverted U-shaped inserts, and the two ends of the horizontal reinforcing steel bars are respectively tied to two sets of wall steel frames.

[0012] Preferably, the lower bay window panel is a hollow block, and two sets of column slots are provided on the side of the lower bay window panel near the bay window column, and the two sets of bay window columns are respectively snapped into the two sets of column slots. Two sets of grouting connection ports are provided at the bottom of the lower bay window panel.

[0013] Preferably, the bay window support platform includes a bay window connecting plate and two sets of bay window support blocks. The two sets of bay window support blocks are respectively connected to the bottom ends of the bay window connecting plate. The bay window support block is a hollow rectangular block with an open top, and the top of the bay window support block is connected to the grouting connection port.

[0014] Preferably, the bottom end of the bay window support block and the side near the bay window column are provided with interconnected support block insertion slots, the bottom of the bay window column is provided with a column insertion slot, and one side of the column insertion slot is provided with a connecting slot that communicates with the support block insertion slot.

[0015] Preferably, the top of the bay window platform is provided with a plug-in positioning block, and the plug-in slots of the support block and the column are fitted into the plug-in positioning block. The top of the plug-in positioning block is provided with a steel column. An adjustment connecting plate is provided on the side of the bay window column near the building wall, and the inner sides of the bay window column and the adjustment connecting plate are provided with lifting grooves.

[0016] Preferably, the top of the bay window pillar, the lower bay window panel, and the upper bay window panel are all provided with concrete grouting ports, and the bay window pillar, the lower bay window panel, and the upper bay window panel are all provided with frame support steel frames. The upper bay window panel is inserted with a lifting support column, and the two ends of the lifting support column are respectively inserted into two sets of lifting slides.

[0017] Preferably, a construction method for a prefabricated bay window connection structure includes the following steps:

[0018] Step 1: First, measure and lay out the lines on the building floor slab, and build the wall steel frame and inverted U-shaped reinforcing bars in the designated area. Then, build the interlocking positioning blocks on the bay window platform.

[0019] Step 2: Pre-assemble the prefabricated bay window components and transport them to the construction site. Then, hoist the prefabricated bay window components to the installation position for installation.

[0020] Step 3: Connect the bay window pillars and bay window support platform to the plug-in positioning blocks of the bay window platform to complete the installation and positioning of the prefabricated bay window components;

[0021] Step 4: Then, the position of the prefabricated bay window components can be measured and calibrated according to the drawings, and the position of the upper and lower bay window panels can be adjusted according to the measurement and calibration results;

[0022] Step 5: After adjustment, fix the prefabricated bay window components to the building floor slab using fixing plates. After fixing, connect the wall formwork to the outside of the wall steel frame. After connection, pour concrete for the prefabricated bay window components and the building wall.

[0023] The technical effects and advantages of this application are as follows:

[0024] 1. Compared with existing technologies, this prefabricated bay window connection structure and construction method reduces the weight of the bay window by replacing the overall prefabricated bay window with cast-in-place bay window module components, thereby reducing the difficulty of hoisting and allowing for fine-tuning of the prefabricated bay window components after installation. The bay window columns, lower bay window slab, and upper bay window slab are all grouted through concrete grouting ports at their respective tops. Furthermore, the entire prefabricated bay window component is a hollow prefabricated module before casting. When the height of the lower bay window slab needs to be adjusted, the bay window slab and the upper bay window are connected... The window support platform can be raised or lowered, and grooves or support blocks can be cut or inserted under the bay window panel and the bay window support platform as needed. The upper bay window panel can be raised or lowered in the lifting groove of the bay window column and the lower bay window panel through the lifting support column. When there is a deviation in the height of the upper bay window panel, the upper bay window panel can be slid and adjusted by a crane or jack. After the adjustment is completed, the support plate is cut according to the distance between the upper and lower bay window panels, and the support plate is snapped and connected between the upper and lower bay window panels.

[0025] 2. Compared with existing technologies, this prefabricated bay window connection structure and construction method connects various components through slots, allowing the prefabricated bay window components to form a whole after pouring. The connection structure with the building floor slab and walls ensures the bay window's integration with the entire structure. During the pouring of the bay window columns, the grout mixed with stone concrete flows from the column insertion slots through a connecting groove into the support block insertion slots of the bay window support blocks, thus forming a unified structure between the two sets of bay window columns, the bay window support blocks, and the lower bay window slab. The entire structure is complete, and after pouring, the upper bay window slab and the bay window column form a whole. When pouring the lower bay window slab, the grout mixed with stone concrete flows from the two sets of grouting ports at the bottom of the lower bay window slab into the bay window support block of the bay window support platform, thus making the lower bay window slab and the two sets of bay window support platforms form a complete whole. The inverted curb is formed by pouring multiple sets of horizontal reinforcing bars, multiple sets of anchoring bars, and multiple sets of inverted U-shaped dowel steel frame, thus making the inverted curb and the entire lower bay window slab form a whole with the building wall. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this application;

[0027] Figure 2 This is a structural diagram of the building floor slab in this application;

[0028] Figure 3 This is a structural schematic diagram of the prefabricated bay window component in this application;

[0029] Figure 4 This is a structural schematic diagram of the lower bay window panel in this application;

[0030] Figure 5 This is a structural schematic diagram of the inverted U-shaped reinforcing bar in this application;

[0031] Figure 6 This is a structural schematic diagram of the lower bay window panel of this application, viewed from below.

[0032] Figure 7 This is a structural schematic diagram of the bottom of the bay window support column in this application;

[0033] Figure 8 This is a structural schematic diagram of the bay window support platform as seen from below in this application;

[0034] Figure 9 This is a structural schematic diagram of the upper bay window panel in this application.

[0035] The attached diagram is labeled as follows: 1. Building floor slab; 11. Bay window platform; 111. Insertion positioning block; 112. Reinforcing steel column; 12. Wall steel frame; 121. Longitudinal reinforcing bar; 122. Transverse reinforcing bar; 13. Inverted U-shaped insert bar; 14. Horizontal reinforcing bar; 2. Building wall; 21. Wall formwork; 3. Precast bay window component; 31. Bay window column; 311. Concrete grouting port; 312. Lifting slide; 313. Column insertion slot; 314. Connecting slot; 32. Adjusting connecting plate; 33. Upper bay window panel; 331. Lifting support column; 332. Frame support steel frame; 34. Lower bay window panel; 341. Column slot; 342. Grouting connection port; 343. Anchoring reinforcing bar; 35. Bay window support platform; 4. Reverse curb; 5. Support panel. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] As attached Figures 1 to 9 The prefabricated bay window connection structure shown includes a building floor slab 1, a building wall 2, and a prefabricated bay window component 3. A bay window platform 11 is provided at one end of the building floor slab 1, and the prefabricated bay window component 3 is connected to the bay window platform 11. The building wall 2 is connected to both sides of the prefabricated bay window component 3.

[0038] The prefabricated bay window component 3 includes two sets of bay window columns 31, an upper bay window panel 33, and a lower bay window panel 34. The upper bay window panel 33 and the lower bay window panel 34 are connected between the two sets of bay window columns 31. Two sets of supporting uprights 5 are provided between the upper bay window panel 33 and the lower bay window panel 34. A bay window support platform 35 is provided at the bottom of the lower bay window panel 34, and a backsplash 4 is connected to one side of the bay window support platform 35. The prefabricated bay window component 3 is installed and connected to the bay window platform 11 of the building floor slab 1 and connected to the building wall 2. The two sets of bay window columns 31 of the prefabricated bay window component 3 are the main supporting structures, and the two sets of bay window columns 31, the upper bay window panel 33, and the lower bay window panel 34 form an outer bay window glass installation frame. The bay window support platform 35 is fixedly connected to the building floor slab 1 by the backsplash 4.

[0039] In a preferred embodiment, the top of the building floor slab 1 is provided with multiple sets of wall steel frames 12 and multiple sets of inverted U-shaped reinforcing bars 13, and the multiple sets of wall steel frames 12 are arranged in an array inside the building wall 2, and the multiple sets of inverted U-shaped reinforcing bars 13 are arranged in an array inside the retaining wall 4. The building wall 2 and the retaining wall 4 are integrally cast. The building wall 2 includes multiple sets of wall formwork 21, which are wrapped around the outside of the multiple sets of wall steel frames 12. The wall steel frames 12 include multiple sets of longitudinal... The wall steel frame 12 and multiple sets of transverse uprights 122 are evenly tied between multiple sets of longitudinal uprights 121. The wall steel frame 12 and inverted U-shaped reinforcing bars 13 are built on the building floor slab 1. The wall steel frame 12 is constructed from multiple sets of longitudinal uprights 121 and multiple sets of transverse uprights 122. The building wall 2 is formed by pouring grout mixed with stone concrete into a mold composed of multiple sets of wall templates 21 and wall steel frame 12.

[0040] In a preferred embodiment, the lower bay window slab 34 is provided with multiple sets of inverted L-shaped anchor bars 343 on the side near the curb 4, and the multiple sets of anchor bars 343 are respectively inserted into multiple sets of inverted U-shaped insert bars 13. Multiple sets of horizontal reinforcing bars 14 are arrayed and inserted below the inverted U-shaped insert bars 13, with both ends of the horizontal reinforcing bars 14 respectively tied to two sets of wall steel frames 12. During the hoisting process of the lower bay window slab 34, the multiple sets of anchor bars 343 are inserted into the multiple sets of inverted U-shaped insert bars 13, and the multiple sets of anchor bars 343 are connected to the wall steel frames 12. A steel frame is formed by a group of horizontal reinforcing bars 14, multiple groups of anchoring bars 343, and multiple groups of inverted U-shaped dowel bars 13. Then, the steel frame formed by the multiple groups of horizontal reinforcing bars 14, multiple groups of anchoring bars 343, and multiple groups of inverted U-shaped dowel bars 13 is cast into an integral inverted curb 4. This makes the inverted curb 4 and the entire lower bay window slab form an integral whole with the building wall 2, thereby making the prefabricated bay window component 3 more tightly connected with the building floor slab 1 and the building wall 2, thus preventing the prefabricated bay window component 3 from falling off the floor.

[0041] In a preferred embodiment, the lower bay window panel 34 is a hollow block. Two sets of column slots 341 are provided on the side of the lower bay window panel 34 near the bay window support column 31, and the two sets of bay window support columns 31 are respectively snapped into the two sets of column slots 341. Two sets of grouting connection ports 342 are provided at the bottom of the lower bay window panel 34. The bay window support platform 35 includes a bay window connecting plate 351 and two sets of bay window support blocks 352. The two sets of bay window support blocks 352 are respectively connected to the bottom ends of the bay window connecting plate 351. The bay window support block 352 is a hollow rectangular block with an open top, and the top of the bay window support block 352 is connected to the grouting connection port 342. When the height of the lower bay window panel 34 needs to be adjusted, the bay window panel 34 and the bay window support platform 35 are raised or lowered. As needed, grooves are cut or support blocks are inserted under the bay window panel 34 and the bay window support platform 35. The two sets of bay window columns 31 are snapped into the two sets of column slots 341 of the lower bay window panel 34. When the lower bay window panel 34 is poured, the grout mixed with stone concrete flows from the two sets of grouting ports 342 at the bottom of the lower bay window panel 34 into the bay window support block 352 of the bay window support platform 35, so that the lower bay window panel 34 and the two sets of bay window support platforms 35 are poured into a complete whole.

[0042] In a preferred embodiment, the bottom end of the bay window support block 352 and the side near the bay window column 31 are provided with interconnected support block insertion grooves 353. The bottom of the bay window column 31 is provided with a column insertion groove 313, and one side of the column insertion groove 313 is provided with a connecting groove 314 that communicates with the support block insertion groove 353. The bay window column 31 and the bay window support block 352 can be pre-assembled at the production site using expansion screws before pre-installation. After the column 31 and the bay window support block 352 are connected, the support block insertion groove 353 is connected to the column insertion groove 313 and the connecting groove 314. When the bay window column 31 is poured, the grout mixed with stone concrete flows from the column insertion groove 313 through the connecting groove 314 into the support block insertion groove 353 of the bay window support block 352, so that the two sets of bay window columns 31, bay window support blocks 352 and lower bay window panels 34 form a complete whole.

[0043] In a preferred embodiment, the top of the bay window platform 11 is provided with a plug-in positioning block 111, and the support block plug-in groove 353 and the column plug-in groove 313 are fitted into the plug-in positioning block 111. Reinforcing steel columns 112 are arrayed and plugged into the top of the plug-in positioning block 111. An adjusting connecting plate 32 is provided on the side of the bay window column 31 closest to the building wall 2, and both the bay window column 31 and the adjusting connecting plate 32 have lifting sliding grooves 312 on their inner sides. When hoisting the prefabricated bay window assembly 3, the support block plug-in groove 353 and the column plug-in groove 313... The connecting groove formed by 13 and the connecting groove 314 is fitted onto the outside of the insertion positioning block 111, thereby completing the initial installation and positioning of the entire hoisting prefabricated bay window assembly 3. The steel column 112 is inserted into the bay window column 31. The size difference between the connecting groove formed by the support block insertion groove 353, the column insertion groove 313, and the connecting groove 314 and the insertion positioning block 111 is ±5cm. Since the entire prefabricated bay window assembly 3 is a hollow prefabricated module, it can be fine-tuned after hoisting and installation to ensure the integrity of the building structure.

[0044] In a preferred embodiment, the tops of the bay window pillar 31, the lower bay window panel 34, and the upper bay window panel 33 are all provided with concrete grouting ports 311. Each of the bay window pillar 31, the lower bay window panel 34, and the upper bay window panel 33 has a frame support steel frame 332. A lifting support column 331 is inserted into the upper bay window panel 33, with both ends of the lifting support column 331 inserted into two sets of lifting slides 312. Grouting is performed on the bay window pillar 31, the lower bay window panel 34, and the upper bay window panel 33 through their respective top concrete grouting ports 311. The internal frame supports the steel frame 332 to enhance the stability of the structure. The upper bay window panel 33 can be raised and lowered within the lifting groove 312 of the bay window column 31 and the lower bay window panel 34 through the lifting support column 331. When there is a deviation in the height of the upper bay window panel 33, it can be adjusted by sliding the upper bay window panel 33 through a crane or jack. After the adjustment is completed, the support plate 5 is cut according to the distance between the upper bay window panel 33 and the lower bay window panel 34, and the support plate 5 is snapped between the upper bay window panel 33 and the lower bay window panel 34. After the pouring is completed, the upper bay window panel 33 and the bay window column 31 form a whole.

[0045] As a preferred embodiment, a method for connecting a prefabricated bay window includes the following steps:

[0046] Step 1: First, measure and lay out the lines on the building floor slab 1, and build the wall steel frame 12 and inverted U-shaped reinforcing bars 13 in the designated area. Then, build the insertion positioning blocks 111 on the bay window platform 11.

[0047] Step 2: Pre-assemble the prefabricated bay window component 3 and transport it to the construction site. Then, hoist the prefabricated bay window component 3 to the installation position for installation.

[0048] Step 3: Connect the bay window support column 31 and the bay window support platform 35 to the insertion positioning block 111 of the bay window platform 11 to complete the installation and positioning of the prefabricated bay window component 3;

[0049] Step 4: Then, the position of the prefabricated bay window component 3 can be measured and calibrated according to the drawings, and the positions of the upper bay window panel 33 and the lower bay window panel 34 can be adjusted according to the measurement and calibration results;

[0050] Step 5: After adjustment, fix the prefabricated bay window component 3 to the building floor slab 1 using the fixing plate. After fixing, connect the wall template 21 to the outside of the wall steel frame 12. After connection, pour the concrete for the prefabricated bay window component 3 and the building wall 2.

[0051] The working process of this application is as follows: First, the lines are measured and laid out on the building floor slab 1, and the positions of the building wall 2 and the sill 4 are determined. The wall steel frame 12 and the inverted U-shaped reinforcing bar 13 are built in the designated areas of the building wall 2 and the sill 4 respectively. Then, the insertion positioning block 111 is stacked on the bay window platform 11, and the steel column 112 is built on the insertion positioning block 111.

[0052] The prefabricated bay window component 3 is pre-assembled and transported to the construction site. Then, the prefabricated bay window is hoisted to the installation position for installation. The prefabricated bay window component 3 is hoisted above the bay window platform 11 and connected to the insertion positioning block 111. The connecting groove, which is composed of the support block insertion groove 353, the column insertion groove 313 and the connecting groove 314, is sleeved on the outside of the insertion positioning block 111, thereby completing the initial installation and positioning of the entire hoisted prefabricated bay window component 3. The steel column 112 is inserted into the bay window column 31.

[0053] Then, the position of the prefabricated bay window component 3 can be measured and calibrated according to the drawings, and the position of the upper bay window panel 33 and the lower bay window panel 34 can be adjusted according to the measurement and calibration results. Since the entire prefabricated bay window component 3 is a hollow prefabricated module, it can be finely adjusted after hoisting and installation to ensure the integrity of the building structure.

[0054] When the height of the lower bay window panel 34 needs to be adjusted, the bay window panel 34 and the bay window support platform 35 are raised or lowered. As needed, grooves are cut or support blocks are inserted under the bay window panel 34 and the bay window support platform 35. The two sets of bay window columns 31 are snapped into the two sets of column slots 341 of the lower bay window panel 34. When the lower bay window panel 34 is poured, the grout mixed with stone concrete flows from the two sets of grouting ports 342 at the bottom of the lower bay window panel 34 into the bay window support block 352 of the bay window support platform 35, so that the lower bay window panel 34 and the two sets of bay window support platforms 35 are poured into a complete whole.

[0055] The upper bay window panel 33 can be raised and lowered within the lifting groove 312 of the bay window support column 331 and the lower bay window panel 34 via the lifting support column 331. When there is a deviation in the height of the upper bay window panel 33, the upper bay window panel 33 can be slidably adjusted by a crane or jack. After the adjustment is completed, the support plate 5 is cut according to the distance between the upper bay window panel 33 and the lower bay window panel 34, and the support plate 5 is snapped together between the upper bay window panel 33 and the lower bay window panel 34.

[0056] After the entire prefabricated bay window assembly 3 is adjusted, the bay window column 31, the lower bay window panel 34, and the upper bay window panel 33 are all grouted through the concrete grouting port 311 at their respective tops. When the bay window column 31 is poured, the grout mixed with stone concrete flows from the column insertion groove 313 through the connecting groove 314 into the support block insertion groove 353 of the bay window support block 352, so that the two sets of bay window columns 31, the bay window support block 352, and the lower bay window panel 34 form a complete whole. After the pouring is completed, the upper bay window panel 33 and the bay window column 31 form a whole.

[0057] During the pouring of the lower bay window slab 34, the grout mixed with stone concrete flows from the two sets of grouting ports 342 at the bottom of the lower bay window slab 34 into the bay window support block 352 of the bay window support platform 35, thus making the lower bay window slab 34 and the two sets of bay window support platforms 35 form a complete whole. The bay window column 31, the lower bay window slab 34 and the upper bay window slab 33 are all reinforced by their internal frame support steel frame 332 to enhance the stability of the structure. The inverted curb 4 is formed by pouring multiple sets of horizontal reinforcing bars 14, multiple sets of anchoring bars 343 and multiple sets of inverted U-shaped dowel bars 13 steel frame, thus making the inverted curb 4 and the entire lower bay window slab and the building wall 2 form a whole. This makes the prefabricated bay window component 3 more tightly connected to the building floor slab 1 and the building wall 2. The building wall 2 is formed by pouring the grout mixed with stone concrete into a mold composed of multiple sets of wall templates 21 and wall steel frames 12.

[0058] Finally: The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A connection structure for a prefabricated bay window, comprising a building floor slab (1), a building wall (2), and a prefabricated bay window assembly (3), characterized in that: A bay window platform (11) is provided at one end of the building floor slab (1), and the prefabricated bay window assembly (3) is connected to the bay window platform (11), and the building wall (2) is connected to both sides of the prefabricated bay window assembly (3); The prefabricated bay window assembly (3) includes two sets of bay window columns (31), an upper bay window panel (33), and a lower bay window panel (34). The upper bay window panel (33) and the lower bay window panel (34) are connected between the two sets of bay window columns (31). Two sets of support plates (5) are provided between the upper bay window panel (33) and the lower bay window panel (34). A bay window support platform (35) is provided at the bottom of the lower bay window panel (34), and a backrest (4) is connected to one side of the bay window support platform (35).

2. The connection structure of a prefabricated bay window according to claim 1, characterized in that: The top of the building floor slab (1) is provided with multiple sets of wall steel frames (12) and multiple sets of inverted U-shaped reinforcing bars (13), and the multiple sets of wall steel frames (12) are arranged in an array inside the building wall (2), and the multiple sets of inverted U-shaped reinforcing bars (13) are arranged in an array inside the inverted wall (4). The building wall (2) and the inverted wall (4) are both cast in one piece.

3. The connection structure of a prefabricated bay window according to claim 2, characterized in that: The building wall (2) includes multiple sets of wall templates (21), which are wrapped around the outside of multiple sets of wall steel frames (12). The wall steel frames (12) include multiple sets of longitudinal support bars (121) and multiple sets of transverse support bars (122), and the multiple sets of transverse support bars (122) are evenly tied between the multiple sets of longitudinal support bars (121).

4. The connection structure of a prefabricated bay window according to claim 2, characterized in that: The lower bay window slab (34) is provided with multiple sets of inverted L-shaped anchor bars (343) on the side near the back sill (4), and the multiple sets of anchor bars (343) are respectively inserted into multiple sets of inverted U-shaped insert bars (13), and multiple sets of horizontal reinforcing bars (14) are inserted in an array below the inverted U-shaped insert bars (13), and the two ends of the horizontal reinforcing bars (14) are respectively tied in two sets of wall steel frames (12).

5. The connection structure of a prefabricated bay window according to claim 1, characterized in that: The lower bay window panel (34) is a hollow block. Two sets of column slots (341) are provided on the side of the lower bay window panel (34) near the bay window column (31), and the two sets of bay window columns (31) are respectively snapped into the two sets of column slots (341). Two sets of grouting connection ports (342) are provided at the bottom of the lower bay window panel (34).

6. The connection structure of a prefabricated bay window according to claim 4, characterized in that: The bay window support platform (35) includes a bay window connecting plate (351) and two sets of bay window support blocks (352). The two sets of bay window support blocks (352) are respectively connected to the bottom ends of the bay window connecting plate (351). The bay window support block (352) is a hollow rectangular block with an open top, and the top of the bay window support block (352) is connected to the grouting connection port (342).

7. The connection structure of a prefabricated bay window according to claim 6, characterized in that: The bottom end of the bay window support block (352) and the side near the bay window column (31) are provided with interconnected support block insertion grooves (353). The bottom of the bay window column (31) is provided with a column insertion groove (313), and one side of the column insertion groove (313) is provided with a connecting groove (314) that is connected to the support block insertion groove (353).

8. The connection structure of a prefabricated bay window according to claim 7, characterized in that: The top of the bay window platform (11) is built with a plug-in positioning block (111), and the support block plug-in groove (353) and the column plug-in groove (313) are fitted with the plug-in positioning block (111). The top of the plug-in positioning block (111) is arrayed with steel column (112). The bay window column (31) is provided with an adjustment connecting plate (32) on the side close to the building wall (2). The inner sides of the bay window column (31) and the adjustment connecting plate (32) are both provided with lifting slide groove (312).

9. The connection structure of a prefabricated bay window according to claim 8, characterized in that: The top of the bay window column (31), the lower bay window panel (34), and the upper bay window panel (33) are all provided with concrete grouting ports (311), and the bay window column (31), the lower bay window panel (34), and the upper bay window panel (33) are all provided with frame support steel frames (332). The upper bay window panel (33) is inserted with lifting support columns (331), and the two ends of the lifting support columns (331) are respectively inserted into two sets of lifting slides (312).

10. A construction method for a prefabricated bay window connection structure, employing the connection structure for a prefabricated bay window as described in any one of claims 1-9, characterized in that: The construction method includes the following steps: Step 1: First, measure and lay out the lines on the building floor slab (1), and build the wall steel frame (12) and inverted U-shaped dowel bars (13) in the designated area. Then, build the dowel positioning blocks (111) on the bay window platform (11). Step 2: Pre-assemble the prefabricated bay window components (3) and transport them to the construction site. Then, hoist the prefabricated bay window components (3) to the installation position for installation. Step 3: Connect the bay window support column (31) and the bay window support platform (35) to the plug-in positioning block (111) of the bay window platform (11) to complete the installation and positioning of the prefabricated bay window component (3); Step 4: Then the position of the prefabricated bay window component (3) can be measured and calibrated according to the drawings, and the position of the upper bay window panel (33) and the lower bay window panel (34) can be adjusted according to the measurement and calibration results; Step 5: After adjustment, fix the prefabricated bay window component (3) to the building floor slab (1) by fixing the plate, and after fixing, connect the wall template (21) to the outside of the wall steel frame (12), and after connection, pour the prefabricated bay window component (3) and the building wall (2).

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