Construction method of fabricated cantilever beam balcony

Abstract

The invention belongs to the technical field of building construction, and particularly relates to a construction method of an assembly type cantilever beam balcony, which comprises the following steps: S1, mounting a balcony beam: mounting a longitudinal beam on a superposed beam, and then mounting a cross beam on the longitudinal beam; s2, a balcony plate is installed, specifically, the balcony laminated plate is installed on a balcony beam, then connected stress ribs are installed, and then a cast-in-place beam and a cast-in-place layer are laid; s3, concrete slabs are installed, specifically, inserting blocks below the concrete slabs are installed in positioning grooves in a balcony beam, then connecting columns are placed between the concrete slabs, connecting blocks on the concrete slabs are inserted into the connecting columns, and then fixing rods are inserted into the connecting columns and penetrate through fixing grooves in the connecting blocks; the diameter of the fixing rod is gradually reduced from top to bottom; all parts of the balcony can be mutually combined and locked, transportation and assembly of the balcony are facilitated, the safety of the assembly process of the balcony is guaranteed, and the overall stress performance of the balcony is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, in particular to a construction method of an assembled cantilever beam balcony. Background Art

[0002] The balcony is an extension of the interior of a building. It is a place for residents to breathe fresh air, dry clothes and place potted plants. Its design needs to take into account the principles of practicality and aesthetics. Balconies are generally divided into three types: cantilevered, embedded, and corner. Balconies can not only allow residents to receive sunlight, absorb fresh air, engage in outdoor exercise, enjoy the view, cool off, and dry clothes, but if well arranged, they can also become a pleasant small garden.

[0003] The existing prefabricated cantilever beam balcony slabs, cantilever beams and front capping beams are integrally prefabricated and cast, which require complex mold making, hanging mold making and steel bar binding before casting. It is impossible to realize automated industrial production, has low production efficiency, is difficult to manufacture, and is inconvenient to transport and stack. The production cost is high and the production speed is slow, which is not conducive to realizing automated production. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, the present invention proposes a construction method for an assembled cantilever beam balcony so that the various components of the balcony can be combined and locked with each other, thereby facilitating the transportation and assembly of the balcony, as well as ensuring the safety of the balcony assembly process and improving the overall stress-bearing performance of the balcony.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a construction method of an assembled cantilever beam balcony according to the present invention comprises the following steps: S1: Install balcony beams: first install the longitudinal beams on the composite beams through anchor rods, and then install the cross beams on the longitudinal beams through anchor rods; S2: Installing balcony slabs: first install the balcony composite slabs into the frame formed by the balcony beams, then install the connected stress-bearing bars on the balcony composite slabs and the floor composite slabs, then lay cast-in-place beams on the composite beams so that the stress-bearing bars pass through the cast-in-place beams, and finally lay cast-in-place layers on the balcony composite slabs and the floor composite slabs respectively so that the stress-bearing bars are buried in the cast-in-place layers; S3: Installing the concrete slab: first install the insertion block under the concrete slab into the positioning groove on the balcony beam, then place the connecting column between the concrete slabs, insert the connecting block on the concrete slab into the connecting column, then insert the fixing rod into the connecting column, and make the fixing rod pass through the fixing groove on the connecting block; the diameter of the fixing rod gradually decreases from top to bottom; Wherein, lifting rings are evenly arranged on the upper surface of the balcony beam, and the connecting blocks with fixing grooves on the concrete slab act as lifting rings; An insert block is arranged on the lower surface of the concrete slab, and a positioning groove is opened on the upper surface of the balcony beam, and the insert block and the positioning groove match each other; Connecting blocks are installed on the left and right sides of the concrete slab, and the connecting blocks on the opposite sides of two adjacent concrete slabs are staggered. Installation grooves are opened on the three adjacent sides of the connecting column, and the connecting blocks are inserted into the installation grooves. The connecting column is used for connecting concrete slabs that are parallel and perpendicular to each other.

[0006] Preferably, a download platform is provided at one end of the longitudinal beam away from the composite beam, and upper pressing platforms are provided at both ends of the transverse beam, and the transverse beam is installed on the download platform of the longitudinal beam through the upper pressing platform; The surface of the unloading platform is provided with an inclined surface, the end of the inclined surface close to the longitudinal beam is lower than the end of the inclined surface away from the longitudinal beam, and the unloading platform and the upper pressing platform are matched with each other; In the step S1, the cross beam is first hoisted and placed on the longitudinal beam and then the anchor rod is installed to fix the connection.

[0007] Preferably, a rotating rod is rotatably installed in the fixed rod, a release groove is provided at the lower end of the fixed rod, an elastic sheet is installed at the lower end of the rotating rod, and the elastic sheet extends from the notch of the release groove; A baffle is installed at the upper end of the rotating rod, and the baffle is installed in a closed position at the opening at the upper end of the connecting column. The elastic sheet is initially wound and installed on the rotating rod; In the step S3, the fixing rod is inserted into the connecting column and then the rotating rod is rotated, so that the wound elastic sheet is gradually stretched and extended from the release groove.

[0008] Preferably, a receiving groove is provided on the lower surface of the concrete slab, the side wall of the receiving groove serves as an insertion block, and the height of the insertion block is greater than the depth of the positioning groove; The lifting ring on the balcony beam is inserted into the accommodating groove, a positioning hole is opened on the side wall of the accommodating groove, a limiting rod is inserted and installed in the positioning hole, the limiting rod passes through the lifting ring, one end of the limiting rod is tapered and has an interference fit with the installation hole.

[0009] Preferably, a closing plate is installed in the installation groove, and cement mortar is poured into the connecting column; The closing plate is installed in any installation groove on the connecting column.

[0010] Preferably, the lower end of the installation groove is communicated with the receiving groove, and the cement mortar poured into the connecting column will enter the receiving groove.

[0011] Preferably, mounting holes are provided in the longitudinal beam and the transverse beam, the diameter of the mounting holes is larger than the diameter of the anchor rod, an injection hole is provided on the upper pressure platform, the upper end of the injection hole is connected to the interior of the connecting column, and the upper pressure platform and the lower pressure platform are provided with communicating grooves that cooperate with each other, and the injection hole is connected with the mounting holes on the longitudinal beam and the transverse beam through the communicating grooves, and the cement mortar poured in the connecting column will enter the mounting hole.

[0012] Preferably, a plurality of groups of the lifting rings are evenly installed along the length direction of the balcony beam, and each group of the lifting rings is arranged in pairs along the width direction of the balcony beam.

[0013] The beneficial effects of the present invention are as follows: 1. The construction method of an assembled cantilever beam balcony described in the present invention enables various components of the balcony to be assembled and combined with each other by arranging longitudinal beams, transverse beams, balcony composite plates, concrete plates, connecting blocks, fixing grooves, connecting columns and fixing rods, thereby reducing the space occupied by the balcony and facilitating the assembly and transportation of the balcony. At the same time, after the balcony is assembled, the various components are firmly locked with each other, making the structure of the balcony stable and firm, thereby making the overall force-bearing performance of the balcony good and ensuring the safety of the balcony during assembly.

[0014] 2. The construction method of an assembled cantilever beam balcony described in the present invention comprises: providing a fixing rod, a release groove, a rotating rod and an elastic sheet. After the fixing rod passes through the fixing grooves on each connecting block, the rotating rod is rotated to unfold the wound elastic sheet and extend it from the release groove, so as to lock the fixing rod and the fixing groove, thereby preventing the fixing rod from being accidentally pulled out or automatically popping out, which would affect the stability of the structure after the balcony is assembled and thus create a safety hazard.

[0015] 3. The construction method of an assembled cantilever beam balcony described in the present invention provides a lifting ring, a receiving groove and a limiting rod, so that the lifting ring can be inserted into the receiving groove on the concrete slab, and then the lifting ring and the limiting rod cooperate with each other to further fix the concrete slab and improve the safety of the balcony assembly process. At the same time, the lifting ring can be reused after the balcony beam is hoisted, and there is no need to dismantle it, thereby reducing the number of steps in the balcony assembly process, accelerating the balcony assembly efficiency, and reducing the generation of waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a flowchart of the steps of the construction method of the present invention; Figure 2 It is a three-dimensional diagram of a cantilever beam balcony in the construction method of the present invention; Figure 3 is a cross-sectional view of a cantilever beam balcony in the construction method of the present invention; Figure 4 It is a three-dimensional diagram of the concrete slab on the cantilever beam balcony of the present invention; Figure 5 It is a partial cross-sectional view of the connection of the concrete slab in the cantilever beam balcony of the present invention; Figure 6 It is a structural schematic diagram of the connecting column in the cantilever beam balcony of the present invention; three installation grooves in the figure are all installed with closing plates as examples; Figure 7 It is a schematic diagram of the structure of the longitudinal beam in the cantilever beam balcony of the present invention; Figure 8 It is a structural schematic diagram of a cross beam in a cantilever beam balcony of the present invention; Fig. 9 It is a structural schematic diagram of the connection between the cross beam and the longitudinal beam in the cantilever beam balcony of the present invention; Fig.10 yes Figure 3 A partial enlarged view of the middle part; Fig.11 yes Figure 5 A partial enlarged view of point B in the middle; Fig.12 yes Figure 5 A partial enlarged view of point C in the middle; Fig.13 yes Figure 6 A partial enlarged view of point D in the middle; In the figure: composite beam 1, cast-in-place beam 11, composite floor slab 12, cast-in-place layer 13, balcony beam 2, longitudinal beam 21, positioning groove 211, lifting ring 212, unloading platform 213, cross beam 22, upper pressing platform 221, balcony composite slab 23, stress reinforcement 231, mounting hole 24, connecting groove 241, injection hole 242, anchor rod 25, concrete slab 3, connecting block 31, fixing groove 311, accommodating groove 32, inserting block 321, limiting rod 33, connecting column 4, mounting groove 41, closing plate 411, fixing rod 42, release groove 421, rotating rod 422, elastic sheet 423, baffle 43. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figures 1 to 13 As shown, the construction method of the assembled cantilever beam balcony of the present invention comprises the following steps: S1: Installing the balcony beam 2: firstly installing the longitudinal beam 21 on the composite beam 1 through the anchor rod 25, and then installing the cross beam 22 on the longitudinal beam 21 through the anchor rod 25; S2: Installing the balcony slab: first install the balcony composite slab 23 into the frame formed by the balcony beam 2, then install the connected stress reinforcement 231 on the balcony composite slab 23 and the floor composite slab 12, then lay the cast-in-place beam 11 on the composite beam 1, so that the stress reinforcement 231 passes through the cast-in-place beam 11, and finally lay the cast-in-place layer 13 on the balcony composite slab 23 and the floor composite slab 12 respectively, so that the stress reinforcement 231 is buried in the cast-in-place layer 13; S3: Installing the concrete slab 3: first install the insertion block 321 under the concrete slab 3 into the positioning groove 211 on the balcony beam 2, then place the connecting column 4 between the concrete slabs 3, insert the connecting block 31 on the concrete slab 3 into the connecting column 4, then insert the fixing rod 42 into the connecting column 4, and make the fixing rod 42 pass through the fixing groove 311 on the connecting block 31; the diameter of the fixing rod 42 gradually decreases from top to bottom; Among them, the upper surface of the balcony beam 2 is evenly provided with lifting rings 212, and the connecting block 31 with a fixing groove 311 on the concrete slab 3 acts as a lifting ring; An insert block 321 is provided on the lower surface of the concrete slab 3, and a positioning groove 211 is provided on the upper surface of the balcony beam 2, and the insert block 321 and the positioning groove 211 match each other; Connecting blocks 31 are installed on the left and right sides of the concrete slab 3. The connecting blocks 31 on the opposite sides of two adjacent concrete slabs 3 are staggered. The three adjacent sides of the connecting column 4 are provided with mounting grooves 41. The connecting blocks 31 are inserted into the mounting grooves 41. The connecting column 4 is used for connecting the concrete slabs 3 that are parallel and perpendicular to each other. The longitudinal beam 21 is installed on the composite beam 1 through the anchor rod 25, and the cross beam 22 is also installed on the longitudinal beam 21 through the anchor rod 25. After that, the longitudinal beam 21 will be embedded in the cast-in-place beam 11, so that the longitudinal beam 21, the composite beam 1, and the cast-in-place beam 11 become a whole, thereby improving the structural stability and overall stress-bearing performance of the balcony. At the same time, the stress-bearing reinforcement 231 is installed on the balcony composite plate 23 and the floor composite plate 12, and the cast-in-place layer 13 is laid, thereby further making the balcony and the building body become a whole, thereby improving the structural firmness and overall stress-bearing performance of the assembled cantilever beam balcony; At the same time, since the longitudinal beam 21, the cross beam 22, the balcony composite plate 23, the concrete plate 3 and the connecting column 4 are combined with each other, the various parts of the cantilever beam balcony can be separated from each other, which is convenient for the transportation and assembly of the cantilever beam balcony, and avoids the cantilever beam balcony being an integrated type and occupying a large space, which is inconvenient for transportation and hoisting assembly; At the same time, a positioning groove 211 is provided on the balcony beam 2, so that the concrete slab 3 can be accurately and stably installed on the balcony beam 2 through the insertion block 321, so as to avoid the concrete slab 3 from being skewed, shaken or tipped over, and to prevent potential safety hazards during the assembly process. At the same time, the mutual cooperation between the insertion block 321 and the positioning groove 211 can also ensure the accuracy of the installation of the concrete slab 3, and after the balcony composite slab 23 and the concrete slab 3 are installed, the cast-in-place layer 13 laid will further fix the concrete slab 3 and the connecting column 4, so as to ensure that the structure of the cantilever beam balcony is firm and stable; At the same time, since the three adjacent side surfaces of the connecting column 4 are provided with mounting grooves 41, the connecting column 4 can be used to connect two adjacent concrete slabs 3 that are parallel or perpendicular to each other, so that the connecting column 4 can be used to connect the concrete slabs 3 at various locations, thereby reducing the number of components required for assembling the cantilever beam balcony; At the same time, after the connecting blocks 31 on the adjacent concrete slabs 3 are inserted into the mounting grooves 41 on the connecting columns 4, the fixing rods 42 are inserted into the connecting columns 4, so that the fixing rods 42 pass through the fixing grooves 311 on each connecting block 31, and the two adjacent concrete slabs 3 are fixed to each other, so as to prevent the concrete slabs 3 from being separated from the connecting columns 4 again, thereby ensuring the firmness and stability of the structure of the cantilever beam balcony after assembly, as well as the safety during the assembly process, and preventing the concrete slabs 3 from shaking or falling, thereby affecting the safety of the construction personnel and on-site mechanical equipment. At the same time, since the upper end diameter of the fixing rods 42 is relatively large, the two adjacent concrete slabs 3 will be close to each other under the action of the fixing rods 42; At the same time, by installing the longitudinal beam 21, the transverse beam 22, the balcony composite plate 23 and the concrete plate 3 in sequence, the assembly process of the cantilever beam balcony is convenient and quick, and the structure of the cantilever beam balcony is ensured to be stable and firm during the assembly process, avoiding safety accidents such as separation and falling of components.

[0020] As an embodiment of the present invention, a downloading platform 213 is provided at one end of the longitudinal beam 21 away from the composite beam 1, and upper pressing platforms 221 are provided at both ends of the cross beam 22. The cross beam 22 is installed on the downloading platform 213 of the longitudinal beam 21 through the upper pressing platform 221; The surface of the unloading platform 213 is provided with an inclined surface, and the end of the inclined surface close to the longitudinal beam 21 is lower than the end of the inclined surface away from the longitudinal beam 21, and the unloading platform 213 and the upper pressing platform 221 are matched with each other; In step S1, the cross beam 22 is first hoisted and placed on the longitudinal beam 21 and then the anchor rod 25 is installed to fix the connection; By placing the cross beam 22 on the unloading platform 213, the cross beam 22 can be stably stressed during the assembly process, ensuring that the structure composed of the longitudinal beam 21 and the cross beam 22 is stable and firm, and avoiding the position of the cross beam 22 from being misaligned, which affects the subsequent fixed connection of the longitudinal beam 21 and the cross beam 22 by the anchor rod 25; At the same time, since the surface of the unloading platform 213 is provided with an inclined surface, after the cross beam 22 is placed on the unloading platform 213 through the upper pressing platform 221, the cross beam 22 will be affected by the inclined surface, so that the cross beam 22 tends to be close to the longitudinal beam 21, ensuring that the cross beam 22 and the longitudinal beam 21 can be in close contact, which is convenient for the anchor rod 25 to fix the longitudinal beam 21 and the cross beam 22. At the same time, it prevents the cross beam 22 from shaking or sliding relative to each other, resulting in the cross beam 22 sliding off or falling from the longitudinal beam 21 before being fixedly connected by the anchor rod 25, affecting the assembly of the cantilever beam balcony and causing safety accidents during the assembly process, affecting the safety of on-site personnel and equipment.

[0021] As an embodiment of the present invention, a rotating rod 422 is rotatably installed in the fixed rod 42, a release groove 421 is opened at the lower end of the fixed rod 42, and an elastic sheet 423 is installed at the lower end of the rotating rod 422, and the elastic sheet 423 extends from the notch of the release groove 421; The upper end of the rotating rod 422 is provided with a baffle 43, and the baffle 43 is installed to seal the opening at the upper end of the connecting column 4. The elastic sheet 423 is initially wound on the rotating rod 422. In the step S3, the fixing rod 42 is inserted into the connecting column 4 and then the rotating rod 422 is rotated, so that the wound elastic sheet 423 is gradually stretched and extended from the release groove 421; When the fixing rod 42 passes through the fixing groove 311 on each connecting block 31, two adjacent concrete slabs 3 are fixedly connected to each other, so that the connecting block 31 on the concrete slab 3 can no longer be pulled out from the connecting column 4, ensuring that the structure of the concrete slab 3 is firm and stable after installation; At the same time, after the fixing rod 42 passes through the fixing groove 311, the staff will rotate the rotating rod 422 in the fixing rod 42 through the baffle 43, so that the elastic sheet 423 wound on the rotating rod 422 is gradually loosened and unfolded, and the unfolded elastic sheet 423 will extend from the release groove 421 on the fixing rod 42, so that the extended elastic sheet 423 locks the fixing rod 42 and the fixing groove 311, to prevent the fixing rod 42 from being accidentally pulled out or being squeezed upward due to the larger diameter of the upper end of the fixing rod 42, resulting in a loose connection between the concrete slabs 3, relative shaking between the concrete slabs 3, and a safety hazard.

[0022] As an embodiment of the present invention, a receiving groove 32 is provided on the lower surface of the concrete slab 3, and the side wall of the receiving groove 32 serves as an insertion block 321, and the height of the insertion block 321 is greater than the depth of the positioning groove 211; The lifting ring 212 on the balcony beam 2 is inserted into the receiving groove 32. A positioning hole is opened on the side wall of the receiving groove 32. A limiting rod 33 is inserted and installed in the positioning hole. The limiting rod 33 passes through the lifting ring 212. One end of the limiting rod 33 is conical and has an interference fit with the mounting hole 24. During the process of assembling the cantilever beam balcony, the balcony beam 2 is hoisted by the hoisting ring 212. After that, after the balcony beam 2 is assembled, the concrete slab 3 is installed on the balcony beam 2, which will make the hoisting ring 212 on the balcony beam 2 enter the receiving groove 32 on the concrete slab 3. After that, the limiting rod 33 is installed on the side wall of the receiving groove 32, and the limiting rod 33 is passed through the hoisting ring 212, so as to further fix the concrete slab 3 and the balcony beam 2, thereby ensuring that the structure of the concrete slab 3 after assembly is stable and firm, and ensuring the stability of the overall structure of the cantilever beam balcony; At the same time, since the lifting ring 212 enters the accommodating groove 32, and the lifting ring 212 cooperates with the limiting rod 33 to further fix the concrete slab 3, the lifting ring 212 on the balcony beam 2 does not need to be removed after lifting, thereby reducing the number of steps in the assembly process of the cantilever beam balcony and improving the construction efficiency of the cantilever beam balcony assembly.

[0023] As an embodiment of the present invention, a closing plate 411 is installed in the installation groove 41, and cement mortar is poured into the connecting column 4; The closing plate 411 is installed in any one of the installation slots 41 on the connecting column 4; Since the upper end diameter of the fixing rod 42 is relatively large, the concrete slabs 3 connected to the connecting column 4 are close to each other, and the concrete slabs 3 are closely attached to the surface of the connecting column 4. Therefore, when pouring cement mortar into the connecting column 4, the cement mortar is not easy to leak from the gap between the concrete slab 3 and the connecting column 4, ensuring that the cement mortar can stably stay in the connecting column 4, so as to fix the fixing rod 42, the connecting columns 4 on the concrete slabs 3 on both sides, and the connecting columns 4 as a whole, further ensuring that the structure of the concrete slab 3 after assembly is firm and stable, and improving the overall force-bearing performance of the cantilever beam balcony; At the same time, since the installation grooves 41 are provided on the three adjacent side surfaces of the connecting column 4, after the concrete slab 3 is installed, there is an idle installation groove 41 on the connecting column 4. Therefore, a closing plate 411 is installed in one of the installation grooves 41 on the connecting column 4 to close the installation groove 41, so as to prevent leakage from the idle installation groove 41 when pouring cement mortar, thereby affecting the filling and curing of cement mortar. At the same time, since three installation grooves 41 are provided on the connecting column 4, the material usage of the connecting column 4 is reduced, and only one closing plate 411 is installed, the usage of the closing plate 411 is reduced, and the production cost of the connecting column 4 can be reduced; At the same time, as another embodiment, the closing plate 411 can be replaced with concrete template paper or a plastic sheet, and the template paper is directly pasted on the surface of the connecting column 4 or the plastic sheet is inserted into the installation groove 41 to complete the closing of one of the installation grooves 41.

[0024] As an embodiment of the present invention, the lower end of the installation groove 41 is connected to the receiving groove 32, and the cement mortar poured in the connecting column 4 will enter the receiving groove 32; By interconnecting the installation groove 41 and the receiving groove 32, during the process of pouring cement mortar into the connecting column 4, the cement mortar will also enter the receiving groove 32, so that the limiting rod 33 and the lifting ring 212 in the receiving groove 32 are embedded in the cement mortar, further improving the structural firmness and stability between the concrete slab 3 and the balcony beam 2, avoiding safety hazards during the assembly process, and at the same time, it can also avoid the relatively large space in the lifting ring 212, which may cause the limiting rod 33 to slide relative to the lifting ring 212, affecting the fixed connection effect of the concrete slab 3, and preventing safety hazards.

[0025] As an embodiment of the present invention, a mounting hole 24 is provided in the longitudinal beam 21 and the cross beam 22, the diameter of the mounting hole 24 is larger than the diameter of the anchor rod 25, an injection hole 242 is provided on the upper pressing platform 221, the upper end of the injection hole 242 is connected to the inside of the connecting column 4, and the upper pressing platform 221 and the lowering platform 213 are provided with mutually matching connecting grooves 241, the injection hole 242 is connected to the mounting holes 24 on the longitudinal beam 21 and the cross beam 22 through the connecting grooves 241, and the cement mortar poured in the connecting column 4 will enter the mounting hole 24; By opening a mounting hole 24 with a diameter larger than that of the anchor rod 25, it is convenient for the anchor rod 25 to pass through the mounting hole 24, and the possibility of the anchor rod 25 getting stuck when passing through the mounting hole 24 is reduced, thereby facilitating the installation of the anchor rod 25. At the same time, after the anchor rod 25 is installed, during the process of pouring cement mortar into the connecting column 4, the cement mortar will enter from the injection hole 242, and then enter the mounting holes 24 on the longitudinal beam 21 and the cross beam 22 through the connecting groove 241, filling the gap between the mounting hole 24 and the anchor rod 25, so that the position of the anchor rod 25 in the balcony beam 2 is fixed, and the anchor rod 25 is prevented from being displaced, thereby further improving the fixed connection effect of the longitudinal beam 21 and the cross beam 22, and improving the structural firmness and stability of the balcony beam 2, so that the overall force-bearing performance of the cantilever beam balcony is good.

[0026] As an embodiment of the present invention, the lifting rings 212 are evenly installed in multiple groups along the length direction of the balcony beam 2, and each group of the lifting rings 212 is arranged in pairs along the width direction of the balcony beam 2; Since the lifting rings 212 are arranged in pairs, after the limiting rod 33 is inserted into the lifting ring 212, the two lifting rings 212 will be close to the two ends of the limiting rod 33 respectively, so that the limiting rod 33 can be kept as horizontal as possible relative to the upper surface of the balcony beam 2, avoiding the situation where only one lifting ring 212 is used and there is only one force point between the limiting rod 33 and the lifting ring 212, which makes the limiting rod 33 easily skewed and offset, affecting the structural firmness and stability of the concrete slab 3.

[0027] The specific workflow is as follows: The longitudinal beam 21 is installed on the composite beam 1 through the anchor rod 25, and the cross beam 22 is also installed on the longitudinal beam 21 through the anchor rod 25. After that, the longitudinal beam 21 will be embedded in the cast-in-place beam 11, so that the longitudinal beam 21, the composite beam 1 and the cast-in-place beam 11 become a whole. At the same time, the stress reinforcement 231 is installed on the balcony composite slab 23 and the floor composite slab 12, and the cast-in-place layer 13 is laid; At the same time, due to the combination of the longitudinal beam 21, the cross beam 22, the balcony composite plate 23, the concrete plate 3 and the connecting column 4, the various parts of the cantilever beam balcony can be separated from each other; At the same time, a positioning groove 211 is provided on the balcony beam 2, so that the concrete slab 3 can be accurately and stably installed on the balcony beam 2 through the insertion block 321, and after the balcony composite slab 23 and the concrete slab 3 are installed, the cast-in-place layer 13 laid will further fix the concrete slab 3 and the connecting column 4; At the same time, since the three adjacent side surfaces of the connecting column 4 are provided with mounting grooves 41, the connecting column 4 can be used to connect two adjacent concrete slabs 3 that are parallel or perpendicular to each other, so that the connecting column 4 can be generally used to connect the concrete slabs 3 at various locations; At the same time, after the connecting blocks 31 on the adjacent concrete slabs 3 are inserted into the mounting grooves 41 on the connecting columns 4, the fixing rods 42 are inserted into the connecting columns 4, so that the fixing rods 42 pass through the fixing grooves 311 on each connecting block 31, and the two adjacent concrete slabs 3 are fixed to each other. At the same time, since the upper end diameter of the fixing rods 42 is relatively large, the two adjacent concrete slabs 3 are brought close to each other under the action of the fixing rods 42; At the same time, by sequentially installing the longitudinal beam 21, the transverse beam 22, the balcony composite plate 23 and the concrete plate 3, the assembly process of the cantilever beam balcony is convenient and quick, and the structure of the cantilever beam balcony is ensured to be stable and firm during the assembly process; By placing the crossbeam 22 on the unloading platform 213, the crossbeam 22 can be stably stressed during the assembly process; At the same time, since the surface of the unloading platform 213 is provided with an inclined surface, after the cross beam 22 is placed on the unloading platform 213 through the upper pressing platform 221, the cross beam 22 will be affected by the inclined surface, so that the cross beam 22 has a tendency to be close to the longitudinal beam 21, and at the same time, it is prevented from relatively shaking or sliding the cross beam 22, causing the cross beam 22 to slide off or fall from the longitudinal beam 21 before being fixedly connected by the anchor rod 25; When the fixing rod 42 passes through the fixing groove 311 on each connecting block 31, two adjacent concrete slabs 3 are fixedly connected to each other, so that the connecting block 31 on the concrete slab 3 can no longer be pulled out from the connecting column 4; At the same time, after the fixing rod 42 passes through the fixing slot 311, the staff will rotate the rotating rod 422 in the fixing rod 42 through the baffle 43, so that the elastic sheet 423 wound on the rotating rod 422 is gradually loosened and unfolded, and the unfolded elastic sheet 423 will extend from the release slot 421 on the fixing rod 42; During the process of assembling the cantilever beam balcony, the balcony beam 2 is hoisted by the hoisting ring 212. After that, after the balcony beam 2 is assembled, the concrete slab 3 is installed on the balcony beam 2, so that the hoisting ring 212 on the balcony beam 2 enters the receiving groove 32 on the concrete slab 3. Then, the limiting rod 33 is installed on the side wall of the receiving groove 32, and the limiting rod 33 is passed through the hoisting ring 212, so as to further fix the concrete slab 3 and the balcony beam 2. At the same time, since the hoisting ring 212 enters the receiving groove 32, and the hoisting ring 212 cooperates with the limiting rod 33 to further fix the concrete slab 3, the hoisting ring 212 on the balcony beam 2 does not need to be removed after hoisting, thereby reducing the number of steps in the assembly process of the cantilever beam balcony; Since the upper end diameter of the fixing rod 42 is relatively large, the concrete slabs 3 connected to the connecting column 4 are close to each other, and the concrete slabs 3 are closely attached to the surface of the connecting column 4. When the cement mortar is poured into the connecting column 4, the cement mortar is not easy to leak from the gap between the concrete slab 3 and the connecting column 4. The fixing rod 42, the connecting columns 4 on the concrete slabs 3 on both sides, and the connecting columns 4 are fixedly connected as a whole, which further ensures that the structure of the concrete slab 3 after assembly is firm and stable. At the same time, since the installation grooves 41 are provided on the three adjacent side surfaces of the connecting column 4, after the concrete slab 3 is installed, there is an idle installation groove 41 on the connecting column 4. Therefore, a closing plate 411 is installed in one of the installation grooves 41 on the connecting column 4 to close the installation groove 41, so as to prevent leakage from the idle installation groove 41 when pouring cement mortar; At the same time, since three installation grooves 41 are provided on the connecting column 4, the material usage of the connecting column 4 is reduced, and only one closing plate 411 is installed, the usage of the closing plate 411 is reduced, and the production cost of the connecting column 4 can be reduced; Meanwhile, as another embodiment, the closing plate 411 can be replaced with a concrete template paper or a plastic sheet, and the template paper is directly pasted on the surface of the connecting column 4 or the plastic sheet is inserted into the installation groove 41 to complete the closing of one of the installation grooves 41; By connecting the installation groove 41 and the receiving groove 32, when pouring cement mortar into the connecting column 4, the cement mortar will also enter the receiving groove 32, so that the limiting rod 33 and the lifting ring 212 in the receiving groove 32 are embedded in the cement mortar, further improving the structural firmness and stability between the concrete slab 3 and the balcony beam 2; By providing the mounting hole 24 with a diameter larger than the anchor rod 25, the installation of the anchor rod 25 is facilitated. At the same time, after the anchor rod 25 is installed, during the process of pouring cement mortar into the connecting column 4, the cement mortar will enter from the injection hole 242, and then enter the mounting hole 24 on the longitudinal beam 21 and the cross beam 22 through the connecting groove 241, and fill the gap between the mounting hole 24 and the anchor rod 25. Since the lifting rings 212 are arranged in pairs, after the limiting rod 33 is inserted into the lifting ring 212, the two lifting rings 212 will be close to the two ends of the limiting rod 33 respectively, so that the limiting rod 33 can be kept as horizontal as possible relative to the upper surface of the balcony beam 2, avoiding the situation where only one lifting ring 212 is used and there is only one force point between the limiting rod 33 and the lifting ring 212, which makes the limiting rod 33 easily skewed and offset, affecting the structural firmness and stability of the concrete slab 3.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A construction method for an assembled cantilever beam balcony, characterized in that: The construction method comprises the following steps: S1: Installing the balcony beam (2): firstly installing the longitudinal beam (21) on the composite beam (1) through the anchor rod (25), and then installing the cross beam (22) on the longitudinal beam (21) through the anchor rod (25); S2: Installing the balcony slab: firstly installing the balcony composite slab (23) into the frame formed by the balcony beam (2), then installing the connected stress-bearing reinforcement (231) on the balcony composite slab (23) and the floor composite slab (12), then laying the cast-in-place beam (11) on the composite beam (1), so that the stress-bearing reinforcement (231) passes through the cast-in-place beam (11), and finally laying the cast-in-place layer (13) on the balcony composite slab (23) and the floor composite slab (12), respectively, so that the stress-bearing reinforcement (231) is buried in the cast-in-place layer (13); S3: installing the concrete slab (3): first installing the insertion block (321) below the concrete slab (3) into the positioning groove (211) on the balcony beam (2), then placing the connecting column (4) between the concrete slabs (3), so that the connecting block (31) on the concrete slab (3) is inserted into the connecting column (4), and then inserting the fixing rod (42) into the connecting column (4), so that the fixing rod (42) passes through the fixing groove (311) on the connecting block (31); the diameter of the fixing rod (42) gradually decreases from top to bottom; Wherein, lifting rings (212) are evenly arranged on the upper surface of the balcony beam (2), and the connecting block (31) with a fixing groove (311) on the concrete slab (3) acts as a lifting ring; An insertion block (321) is provided on the lower surface of the concrete slab (3), a positioning groove (211) is provided on the upper surface of the balcony beam (2), and the insertion block (321) and the positioning groove (211) match each other; Connecting blocks (31) are installed on the left and right sides of the concrete slab (3), and the connecting blocks (31) on the opposite sides of two adjacent concrete slabs (3) are arranged in a staggered manner. The three adjacent sides of the connecting column (4) are provided with mounting grooves (41), and the connecting blocks (31) are inserted into the mounting grooves (41). The connecting column (4) is used for connecting concrete slabs (3) that are parallel to each other and perpendicular to each other.

2. A construction method for an assembled cantilever beam balcony according to claim 1, characterized in that: A download platform (213) is provided at one end of the longitudinal beam (21) away from the composite beam (1), and upper pressing platforms (221) are provided at both ends of the cross beam (22), and the cross beam (22) is installed on the download platform (213) of the longitudinal beam (21) through the upper pressing platform (221); An inclined surface is provided on the surface of the unloading platform (213), an end of the inclined surface close to the longitudinal beam (21) is lower than an end of the inclined surface away from the longitudinal beam (21), and the unloading platform (213) and the upper pressing platform (221) are matched with each other; In the step S1, the cross beam (22) is first hoisted and placed on the longitudinal beam (21) and then the anchor rod (25) is installed to fix the connection.

3. The construction method of an assembled cantilever beam balcony according to claim 1 is characterized in that: A rotating rod (422) is rotatably mounted in the fixed rod (42), a release groove (421) is provided at the lower end of the fixed rod (42), an elastic sheet (423) is mounted at the lower end of the rotating rod (422), and the elastic sheet (423) extends out from the notch of the release groove (421); A baffle (43) is installed at the upper end of the rotating rod (422), and the baffle (43) is installed to seal the opening at the upper end of the connecting column (4). The elastic sheet (423) is wound on the rotating rod (422) in an initial state. In the step S3, the fixing rod (42) is inserted into the connecting column (4) and then the rotating rod (422) is rotated, so that the wound elastic sheet (423) is gradually stretched and extended from the release groove (421).

4. The construction method of an assembled cantilever beam balcony according to claim 1 is characterized in that: The lower surface of the concrete slab (3) is provided with a receiving groove (32), the side wall of the receiving groove (32) serves as an insertion block (321), and the height of the insertion block (321) is greater than the depth of the positioning groove (211); The lifting ring (212) on the balcony beam (2) is inserted into the receiving groove (32), a positioning hole is provided on the side wall of the receiving groove (32), a limiting rod (33) is inserted and installed in the positioning hole, the limiting rod (33) passes through the lifting ring (212), one end of the limiting rod (33) is tapered and has an interference fit with the installation hole (24).

5. The construction method of the assembled cantilever beam balcony according to claim 4 is characterized in that: A closing plate (411) is installed in the installation groove (41), and cement mortar is poured into the connecting column (4); The closing plate (411) is installed in any installation groove (41) on the connecting column (4).

6. The construction method of a prefabricated cantilever beam balcony according to claim 5, characterized in that: The lower end of the installation groove (41) is in communication with the receiving groove (32), and the cement mortar poured into the connecting column (4) will enter the receiving groove (32).

7. The construction method of an assembled cantilever beam balcony according to claim 5 is characterized in that: The longitudinal beam (21) and the cross beam (22) are provided with mounting holes (24), the diameter of the mounting holes (24) being larger than the diameter of the anchor rod (25); the upper pressing platform (221) is provided with an injection hole (242), the upper end of the injection hole (242) being connected to the interior of the connecting column (4); the upper pressing platform (221) and the lowering platform (213) are provided with communicating grooves (241) that cooperate with each other, the injection hole (242) is connected to the mounting holes (24) on the longitudinal beam (21) and the cross beam (22) through the communicating grooves (241), and the cement mortar poured into the connecting column (4) enters the mounting hole (24).

8. The construction method of a prefabricated cantilever beam balcony according to claim 4, characterized in that: A plurality of groups of the lifting rings (212) are evenly installed along the length direction of the balcony beam (2), and each group of the lifting rings (212) is arranged in pairs along the width direction of the balcony beam (2).

Images