Fabricated composite floor slab

Abstract

The utility model relates to an assembly type composite floor slab. The assembly type composite floor slab comprises a shear wall tension brace combined formwork system, a multi-rod synchronous adjustment unit type independent supporting system, a post-cast strip wet connection hanging formwork system, a three-dimensional container type stacking frame, a height-adjustable composite floor slab and a composite floor slab overhanging I-steel local stiffness reinforcing and fixing system which are adopted for assembly type composite floor slab construction. By the adoption of a modular assembly mode, time and labor cost can be saved, engineering efficiency can be improved, construction is convenient and fast, the device has great significance in improving the construction period, reducing waste and promoting environment-friendly practice, and the device has wide application prospects.

Description

Technical Field

[0001] The utility model relates to an assembled composite floor slab and a construction method thereof, belongs to the field of civil engineering, and is suitable for the construction of assembled composite floor slabs. Background Art

[0002] With the promotion of prefabricated buildings, composite floor slabs are widely used in prefabricated buildings. In the field of modern construction, prefabricated composite floor slabs are a revolutionary way to improve building efficiency and sustainability. These slabs, which combine various materials and advanced technologies, have brought great changes to the industry.

[0003] Prefabricated composite floors face some technical difficulties during their development. One of the main challenges is the accuracy and consistency in the design and manufacturing process. Ensuring that the size, strength and quality of prefabricated floors meet the design requirements requires highly precise manufacturing and production processes. In addition, the deformation or damage that the floors may face during transportation and installation is also a problem, and effective protection measures and reinforcement measures need to be taken to ensure the integrity and stability of the floors. At the same time, prefabricated construction needs to be coordinated with the on-site environment, including various connection methods, process methods, etc., to ensure accuracy and safety during the assembly process. In addition, the problem of slurry leakage at the joints of the post-casting belts of composite floors has gradually become a common problem affecting construction quality. Leakage not only affects the visual quality, but also makes subsequent construction processes difficult and even causes waste.

[0004] Therefore, how to quickly install composite floor slabs and ensure construction quality has become a key technology and difficulty in prefabricated building construction. Utility Model Content

[0005] The purpose of the utility model is to provide an assembled composite floor slab, which adopts a modular assembly method during the construction process, can save time and labor costs, improve engineering efficiency, and facilitate construction. It is of great significance for improving construction period, reducing waste and promoting environmental protection practices.

[0006] In order to achieve the above application purpose, the present application adopts the following technical solution: an assembled composite floor slab includes:

[0007] The cast-in-place shear wall bracing composite formwork system is composed of a reinforced back rib, a tension screw, an outer fixing nut, a bottom longitudinal strip, a bottom diagonal brace fixing ear plate fixing plate, a bottom diagonal brace, an upper diagonal brace fixing ear plate fixing plate, an upper diagonal brace, a shear wall outer formwork, a top longitudinal strip, a shear wall inner formwork, and an inner fixing nut, and is used for the pouring construction of the shear wall; the shear wall outer formwork and the shear wall inner formwork are respectively clamped on both sides of the frame structure column of the shear wall, and a reinforced back rib is also provided on the other side of the shear wall inner formwork, and the tension screw passes through the reserved holes of the shear wall outer formwork, the shear wall inner formwork and the reinforced back rib side in turn, and then is fixed with an outer fixing nut and an inner fixing nut respectively; the bottom diagonal brace fixing ear plate fixing plate and the upper diagonal brace fixing ear plate fixing plate are located on the top of the poured lower floor slab;

[0008] The multi-rod synchronous adjustment unit-type independent support system is composed of telescopic support rods, vertical adjustment jacks, longitudinal steel pipes, and jack fixed bases, and is mainly used to support and adjust the composite floor support bottom formwork; the jack fixed bases are evenly arranged on the poured lower floor slab, and vertical adjustment jacks are evenly arranged on the top of the jack fixed bases. The top of the vertical adjustment jack is connected to one end of the telescopic support rod, and the other end of the telescopic support rod is connected to the fixing ring. The fixing ring is evenly arranged at the bottom of the longitudinal beam plate, and each row of telescopic support rods is connected to a unit through longitudinal steel pipes;

[0009] The post-casting strip wet joint hanging formwork system includes a pressing plate, a hanging frame, a tie rod, a nut on the top of the tie rod, a post-casting strip bottom formwork, a nut on the bottom of the tie rod, a pad board, a longitudinal pressing plate, a screw fixing nut, a hanging plate shelving groove, and a hanging plate, which is used for wet joint construction between laminated floor slabs; hanging plate shelving grooves are evenly arranged on the top of the hanging frame, and the hanging plates are placed in the hanging plate shelving grooves. The post-casting strip bottom formwork is suspended under the hanging frame through the tie rod and the hanging plate, and is stabilized by a pressing plate, a pad board, and a longitudinal pressing plate;

[0010] The three-dimensional container-type stacking rack is composed of vertical rods, horizontal support rods, storage boxes, longitudinal connecting rods, rollers, and slide rail support plates, and is used for stacking laminated floors; the vertical rods, horizontal support rods, and longitudinal connecting rods form the skeleton of the container-type stacking rack, horizontal support rods and longitudinal connecting rods are arranged between the vertical rods, a slide rail support plate is placed on the top of the horizontal support rods, the storage box is located on the top of the slide rail support plate, and a roller is arranged at the bottom of the storage box;

[0011] The height-adjustable composite floor comprises an L-shaped fixed adjustment screw, a steel bar truss, a height-adjustable composite floor, a fixing nut at the bottom of the height-adjustable composite floor, and a reserved hole for the height-adjustable composite floor; a plurality of rows of steel bar trusses are arranged on the top of the height-adjustable composite floor, and through reserved holes for the height-adjustable composite floor are arranged on both sides of the top of the height-adjustable composite floor; one end of the L-shaped fixed adjustment screw is pre-buried in the top of the shear wall, and the other end thereof passes through the reserved hole for the height-adjustable composite floor and is fixed by a fixing nut at the bottom of the height-adjustable composite floor;

[0012] The local rigid reinforcement and fixing system of the cantilevered I-beam of the composite floor comprises a top pressure plate, fixing screws, pressure plate fixing nuts, H-shaped standardized sleeves, I-beams, standardized steel bar fixing rings, connecting sleeves, reserved holes in the web of I-beams, sleeve ear plates, fixing rods, sleeves, and fixing rod fastening nuts, which are used for the erection of external cantilevered unloading platforms; the I-beams are cantilevered and placed on the top of the composite floor and fixed by the top pressure plate, fixing screws and pressure plate fixing nuts; at the same time, the flange plates of the I-beams are fixed to the fixing screws by fixing rods, sleeves, and fixing rod fastening nuts.

[0013] Furthermore, a padding wooden block is provided between the inner formwork of the shear wall and the reinforced back rib, the bottom of the inner formwork of the shear wall is placed on the top of the poured lower floor slab, a cantilever support plate is provided on the side of the top attachment of the inner formwork of the shear wall, and a through cantilever support plate reserved hole is provided on the top of the cantilever support plate.

[0014] Furthermore, the outer side surface of the reinforced back rib is provided with a bottom longitudinal strip and a top longitudinal strip, and the sides of the bottom longitudinal strip and the top longitudinal strip are evenly provided with a bottom ear plate and a top ear plate respectively; the bottom ear plate is connected to one end of the bottom diagonal brace through a plug-in pin, and the other end of the bottom diagonal brace is connected to the bottom diagonal brace fixed ear plate through a plug-in pin, and the bottom diagonal brace fixed ear plate is evenly arranged on the bottom diagonal brace fixed ear plate fixing plate; the top ear plate is connected to one end of the upper diagonal brace through a plug-in pin, and the other end of the upper diagonal brace is connected to the upper diagonal brace fixed ear plate through a plug-in pin, and the bottom diagonal brace fixed ear plates are evenly arranged on the upper diagonal brace fixed ear plate fixing plate.

[0015] Furthermore, the hanging frame is placed on the top edge of the composite floor slabs on both sides, the bottom formwork of the post-cast strip is located at the bottom edge of the composite floor slabs on both sides, and the side of the composite floor slab is provided with through holes reserved for composite floor pipelines; screws are evenly provided at the bottom of both ends of the bottom formwork of the post-cast strip, and wooden pads are provided between the center and edge of the bottom of the post-cast strip and the pressure plate, and the top of the wooden pads is provided with through holes reserved for wooden pads.

[0016] Furthermore, the tie rod passes through the central reserved holes of the hanging plate, the bottom mold of the post-casting strip, the pad board and the pressure plate in sequence, and then the top and bottom of the tie rod are fixed with the tie rod top nut and the tie rod bottom nut respectively.

[0017] Furthermore, longitudinal beams are evenly arranged at the bottom of the composite floor support formwork, screws are evenly arranged at the bottom of one end of the composite floor support formwork, and composite floor support formwork insertion rods are evenly arranged at the bottom of the other end; one end of the composite floor support formwork is placed on the top of the cantilever support plate, and the composite floor support formwork insertion rods are respectively passed through the reserved holes of the cantilever support plate and fixed with insertion rod fixing nuts.

[0018] Furthermore, the screw rods at the bottom of the post-cast strip bottom formwork and the composite floor slab support bottom formwork pass through the reserved holes of the pad board and the pressure plate in sequence, and the bottom of the screw rods are fixed with screw rod fixing nuts respectively.

[0019] Furthermore, the fixing screw is connected to the standardized steel bar fixing ring through the connecting sleeve, and the standardized steel bar fixing ring is connected to the bottom longitudinal main reinforcement of the two rows of composite floor slabs at the bottom; the web of the I-beam is provided with an I-beam web reserved hole, and an H-shaped standardized sleeve is sleeved on the connecting sleeve, and an I-beam is arranged between the H-shaped standardized sleeves.

[0020] Furthermore, sleeve ear plates are respectively provided on both sides of the sleeve, the sleeve is sleeved on the fixing screw rod, the fixing rod passes through the sleeve ear plates and the reserved holes of the I-beam web in sequence, and is fixed by the fixing rod fastening nut.

[0021] Compared with the prior art, the utility model has the following outstanding advantages and significant effects:

[0022] 1. The assembled composite floor construction method adopted by the utility model adopts a modular assembly method during the construction process, which can save time and labor costs, improve engineering efficiency, and facilitate construction. It is of great significance to improve the construction period, reduce waste and promote environmental protection practices.

[0023] 2. The cast-in-place shear wall bracing combined formwork system involved in the utility model has a simple structural design, and is fixed by tension bolts. At the same time, a combined support system of reinforced back ribs and diagonal braces is used to effectively ensure the stability of the formwork. In addition, a cantilever support plate on the top of the inner formwork of the shear wall is used to ensure the stability of the bottom formwork of the composite floor slab, which effectively ensures the casting quality of the cast-in-place shear wall and the installation quality of the composite slab.

[0024] 3. The wet-joint hanging formwork system for the post-casting strip in the utility model has a simple structure and can be quickly installed by utilizing a hanging frame. At the same time, it is fixed by utilizing a pressing plate, a padding plate, and a longitudinal pressing plate, which effectively ensures the stability of the formwork and reduces leakage problems during the construction of the post-casting strip.

[0025] 4. The utility model adopts a composite floor cantilever I-beam local rigid reinforcement fixing system with a sophisticated design, which realizes multiple safety reinforcements, solves the problem that the composite floor is low in thickness and cannot meet the bearing capacity requirements of the cantilever unloading platform, and ensures construction safety.

[0026] 5. The height-adjustable composite floor in the utility model and the steel truss can realize the rapid positioning and binding of the height-adjustable composite floor and the floor steel bars, and the elevation adjustment of the height-adjustable composite floor can be realized through the L-shaped fixed adjustment screw, thereby solving the construction problems caused by the uneven top of the shear wall or the frame structure column in actual construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the construction elevation of the assembled composite floor;

[0028] Figure 2 It is a top view of the construction of prefabricated composite floor;

[0029] Figure 3 It is a three-dimensional schematic diagram of the top structure layout of the assembled composite floor;

[0030] Figure 4 It is a three-dimensional schematic diagram of the construction of prefabricated composite floor slabs;

[0031] Figure 5 It is a three-dimensional schematic diagram of the construction of a multi-rod synchronously adjusted unit-type independent support system;

[0032] Figure 6 It is a three-dimensional schematic diagram of the cantilever support bottom formwork construction of the assembled composite floor;

[0033] Figure 7 It is a three-dimensional schematic diagram of the construction of cast-in-place shear wall bracing composite formwork system;

[0034] Figure 8 It is a schematic diagram of the construction elevation of the adjustable support bottom formwork of the assembled composite floor;

[0035] Fig. 9 It is a schematic diagram of the construction elevation of the cast-in-place shear wall bracing composite formwork system;

[0036] Fig.10 It is a three-dimensional schematic diagram of the construction of the wet joint hanging formwork system of the post-casting belt;

[0037] Fig.11 This is a schematic diagram of the construction elevation of the post-casting wet joint hanging formwork system;

[0038] Fig.12 This is a schematic diagram of the assembly of the lower structure of the post-casting wet joint hanging formwork system;

[0039] Fig.13 It is a three-dimensional schematic diagram of the local stiffening and fixing system of the cantilevered I-beam of the composite floor;

[0040] Fig.14 It is a cross-sectional view of the local stiffening and fixing system of the cantilevered I-beam of the composite floor;

[0041] Fig.15It is a schematic diagram of the composite floor structure with efficient pre-buried electromechanical equipment and standardized pipeline installation;

[0042] Fig.16 It is a schematic elevation diagram of the local stiffening and fixing system of the cantilevered I-beam of the composite floor;

[0043] Fig.17 It is a three-dimensional schematic diagram of the construction of a height-adjustable composite floor;

[0044] Fig.18 This is a schematic diagram of pre-embedded stereotyped screws in shear walls;

[0045] Fig.19 It is a schematic diagram of the construction elevation of the height-adjustable composite floor;

[0046] Fig. 20 It is a three-dimensional schematic diagram of a height-adjustable composite floor;

[0047] Fig.21 It is a three-dimensional schematic diagram of the side detail structure of the reinforced back rib;

[0048] Fig. 22 It is a three-dimensional schematic diagram of the structure of a three-dimensional container-type composite floor stacking rack;

[0049] Fig.23 It is a schematic diagram of the elevation of a three-dimensional container-type composite floor stacking rack structure.

[0050] In the figure, 1, frame structure column; 2, top pressure plate; 3, fixing screw; 4, pressure plate fixing nut; 5, H-shaped fixed casing; 6, composite floor; 7, screw; 8, pressure plate; 9, hanging frame; 10, tie rod; 11, tie rod top nut; 12, post-casting strip bottom form; 13, tie rod bottom nut; 14, pad board; 15, longitudinal pressure plate; 16, screw fixing nut; 17, longitudinal beam plate; 18, fixing ring; 19, plug rod fixing nut; 20, cantilever support plate; 21, composite floor support bottom Mold insert rod; 22, reinforced back rib; 23, top ear plate; 24, tension screw; 25, plug-in pin; 26, outer fixing nut; 27, bottom longitudinal strip; 28, bottom ear plate; 29, telescopic support rod; 30, upper diagonal brace to fix the ear plate; 31, vertical adjustment jack; 32, bottom diagonal brace to fix the ear plate fixing plate; 33, longitudinal steel pipe; 34, bottom diagonal brace to fix the ear plate; 35, bottom diagonal brace; 36, upper diagonal brace to fix the ear plate fixing plate; 37, lower floor; 38, jack fixing base ; 39. Upper diagonal brace; 40. Pad block; 41. Shear wall outer formwork; 42. Top longitudinal strip; 43. Shear wall inner formwork; 44. Internal fixing nut; 45. Composite floor support bottom formwork; 46. I-beam; 47. Post-cast strip; 48. Hanging plate shelf groove; 49. Hanging plate; 50. Composite floor bottom longitudinal main reinforcement; 51. Shaped steel bar fixing ring; 52. Pad board reserved hole; 53. Cantilever support plate reserved hole; 54. Composite floor pipeline reserved hole; 55. Shear wall; 56. L shaped fixing adjustment screw; 57, steel truss; 58, height-adjustable composite floor; 59, bottom fixing nut of height-adjustable composite floor; 60, reserved hole of height-adjustable composite floor; 61, container-type stacking rack; 62, vertical rod; 63, horizontal support rod; 64, storage box; 65, longitudinal connecting rod; 66, roller; 67, slide rail support plate; 68, connecting sleeve; 69, reserved hole of I-beam web; 70, sleeve ear plate; 71, fixing rod; 72, sleeve; 73, fixing rod fastening nut. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0052] Those skilled in the art should understand that, in the disclosure of the present application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present application.

[0053] Example 1

[0054] like Figure 1 to Figure 23 As shown in the figure, the assembled composite floor mainly includes:

[0055] The construction of the prefabricated composite floor slab adopts a cast-in-place shear wall bracing combined formwork system, a multi-rod synchronously adjustable unitized independent support system, a post-cast strip wet joint hanging formwork system, a three-dimensional container-type stacking rack (61), a height-adjustable composite floor slab (58) and a composite floor slab cantilever I-beam local rigid reinforcement fixing system.

[0056] In this embodiment, the cast-in-place shear wall bracing composite formwork system is composed of a reinforced back rib 22, a tension screw 24, an outer fixing nut 26, a bottom longitudinal strip 27, a bottom diagonal brace fixing ear plate fixing plate 32, a bottom diagonal brace 35, an upper diagonal brace fixing ear plate fixing plate 36, an upper diagonal brace 39, a shear wall outer formwork 41, a top longitudinal strip 42, a shear wall inner formwork 43, and an inner fixing nut 44, and is used for the pouring construction of the shear wall 55; the shear wall outer formwork 41, the shear wall inner formwork 43, and the inner fixing nut 44 are ... The inner wall formwork 43 is clamped on both sides of the frame structure column 1 of the shear wall 55, and the other side of the inner wall formwork 43 of the shear wall is also provided with a reinforcing back rib 22. The tension screw 24 passes through the reserved holes of the outer wall formwork 41, the inner wall formwork 43 of the shear wall and the side of the reinforcing back rib 22 in sequence, and then is fixed with the outer fixing nut 26 and the inner fixing nut 44 respectively; the bottom diagonal brace fixing ear plate fixing plate 32 and the upper diagonal brace fixing ear plate fixing plate 36 are located on the top of the poured lower floor slab 37;

[0057] Preferably, a cushioning wooden block 40 is provided between the inner formwork 43 of the shear wall and the reinforced back rib 22, the bottom of the inner formwork 43 of the shear wall is placed on the top of the poured lower floor slab 37, a cantilever support plate 20 is provided on the side of the top attachment of the inner formwork 43 of the shear wall, and a through cantilever support plate reserved hole 53 is provided on the top of the cantilever support plate 20.

[0058] Furthermore, the outer side surface of the reinforced back rib 22 is provided with a bottom longitudinal strip 27 and a top longitudinal strip 42, and the sides of the bottom longitudinal strip 27 and the top longitudinal strip 42 are evenly provided with a bottom ear plate 28 and a top ear plate 23 respectively; the bottom ear plate 28 is connected to one end of the bottom diagonal brace 35 by a plug-in pin 25, and the other end of the bottom diagonal brace 35 is connected to the bottom diagonal brace fixed ear plate 34 by a plug-in pin 25, and the bottom diagonal brace fixed ear plate 34 is evenly arranged on the bottom diagonal brace fixed ear plate fixed plate 32; the top ear plate 23 is connected to one end of the upper diagonal brace 39 by a plug-in pin 25, and the other end of the upper diagonal brace 39 is connected to the upper diagonal brace fixed ear plate 30 by a plug-in pin 25, and the bottom diagonal brace fixed ear plate 34 is evenly arranged on the upper diagonal brace fixed ear plate fixed plate 36.

[0059] In this embodiment, the multi-rod synchronous adjustment unit-type independent support system is composed of a telescopic support rod 29, a vertical adjustment jack 31, a longitudinal steel pipe 33, and a jack fixed base 38, and is mainly used to support and adjust the composite floor support bottom mold 45; the jack fixed base 38 is evenly arranged on the poured lower floor slab 37, and the vertical adjustment jack 31 is evenly arranged on the top of the jack fixed base 38. The top of the vertical adjustment jack 31 is connected to one end of the telescopic support rod 29, and the other end of the telescopic support rod 29 is connected to the fixing ring 18. The fixing ring 18 is evenly arranged at the bottom of the longitudinal beam 17, and each row of telescopic support rods 29 is connected to a unit through the longitudinal steel pipe 33;

[0060] Preferably, longitudinal beams 17 are evenly provided at the bottom of the composite floor slab supporting bottom formwork 45, screws 7 are evenly provided at the bottom of one end of the composite floor slab supporting bottom formwork 45, and composite floor slab supporting bottom formwork insertion rods 21 are evenly provided at the bottom of the other end; one end of the composite floor slab supporting bottom formwork 45 is placed on the top of the cantilever support plate 20, and the composite floor slab supporting bottom formwork insertion rods 21 respectively pass through the reserved holes 53 of the cantilever support plate and are fixed with the insertion rod fixing nuts 19.

[0061] In this embodiment, the post-casting strip wet joint hanging formwork system includes a pressing plate 8, a hanging frame 9, a tie rod 10, a tie rod top nut 11, a post-casting strip bottom formwork 12, a tie rod bottom nut 13, a pad board 14, a longitudinal pressing plate 15, a screw fixing nut 16, a hanging plate shelving groove 48, and a hanging plate 49, which is used for wet joint construction between the composite floor slabs 6; the hanging plate shelving grooves 48 are evenly arranged on the top of the hanging frame 9, and the hanging plate 49 is placed in the hanging plate shelving grooves 48. The post-casting strip bottom formwork 12 is suspended below the hanging frame 9 through the tie rod 10 and the hanging plate 49, and is stabilized by the pressing plate 8, the pad board 14 and the longitudinal pressing plate 15;

[0062] Preferably, the hanging frame 9 is placed on the top edge of the composite floor 6 on both sides, the post-cast strip bottom formwork 12 is located at the bottom edge of the composite floor 6 on both sides, and the side of the composite floor 6 is provided with through composite floor pipeline reserved holes 54; screws 7 are evenly provided at the bottom of both ends of the post-cast strip bottom formwork 12, and wooden pads 14 are respectively provided between the center and edge of the bottom of the post-cast strip bottom formwork 12 and the pressing plate 8, and the top of the wooden pad 14 is provided with a through wooden pad reserved hole 52.

[0063] Furthermore, the tie rod 10 passes through the central reserved hole of the hanging plate 49, the post-casting strip bottom form 12, the pad board 14 and the pressing plate 8 in sequence, and then the top and bottom of the tie rod 10 are fixed by the tie rod top nut 11 and the tie rod bottom nut 13 respectively. The screw rod 7 at the bottom of the post-casting strip bottom form 12 and the composite floor support bottom form 45 passes through the reserved holes of the pad board 14 and the pressing plate 8 in sequence, and the bottom of the screw rod 7 is fixed by the screw rod fixing nut 16 respectively.

[0064] In this embodiment, a three-dimensional container-type stacking rack 61 is composed of a vertical rod 62, a transverse support rod 63, a storage box 64, a longitudinal connecting rod 65, a roller 66, and a slide rail support plate 67, and is used for stacking the laminated floor 6; the vertical rod 62, the transverse support rod 63, and the longitudinal connecting rod 65 form the skeleton of the container-type stacking rack 61, and transverse support rods 63 and longitudinal connecting rods 65 are arranged between the vertical rods 62, and a slide rail support plate 67 is placed on the top of the transverse support rod 63, and the storage box 64 is located on the top of the slide rail support plate 67, and a roller 66 is arranged at the bottom of the storage box 64;

[0065] In this embodiment, the height-adjustable composite floor 58 includes an L-shaped fixed adjustment screw 56, a steel bar truss 57, a height-adjustable composite floor 58, a fixing nut 59 at the bottom of the height-adjustable composite floor, and a reserved hole 60 for the height-adjustable composite floor; a plurality of rows of steel bar trusses 57 are arranged on the top of the height-adjustable composite floor 58, and through reserved holes 60 for the height-adjustable composite floor are arranged on both sides of the top of the height-adjustable composite floor 58; one end of the L-shaped fixed adjustment screw 56 is pre-buried in the top of the shear wall 55, and the other end thereof passes through the reserved hole 60 for the height-adjustable composite floor and is fixed by the fixing nut 59 at the bottom of the height-adjustable composite floor;

[0066] In this embodiment, the local stiffness reinforcement and fixing system of the cantilevered I-beam of the composite floor comprises a top pressure plate 2, a fixing screw 3, a pressure plate fixing nut 4, an H-shaped standardized sleeve 5, an I-beam 46, a standardized steel bar fixing ring 51, a connecting sleeve 68, an I-beam web reserved hole 69, a sleeve ear plate 70, a fixing rod 71, a sleeve 72, and a fixing rod fastening nut 73, which is used for the erection of an external cantilevered unloading platform; the I-beam 46 is cantilevered and placed on the top of the composite floor 6, and is fixed by the top pressure plate 2, the fixing screw 3 and the pressure plate fixing nut 4; at the same time, the flange plate of the I-beam 46 is fixed to the fixing screw 3 by a fixing rod 71, a sleeve 72, and a fixing rod fastening nut 73.

[0067] Preferably, the fixing screw 3 is connected to the shaped steel bar fixing ring 51 through the connecting sleeve 68, and the shaped steel bar fixing ring 51 is connected to the longitudinal main bars 50 at the bottom of the two rows of the composite floor slabs at the bottom; the web of the I-beam 46 is provided with an I-beam web reserved hole 69, and the connecting sleeve 68 is sleeved with an H-shaped shaped sleeve 5, and the I-beam 46 is arranged between the H-shaped shaped sleeves 5. Sleeve ear plates 70 are respectively provided on both sides of the sleeve 72, and the sleeve 72 is sleeved on the fixing screw 3, and the fixing rod 71 passes through the sleeve ear plates 70 and the I-beam web reserved holes 69 in sequence, and is fixed with the fixing rod fastening nut 73.

[0068] Example 2

[0069] The construction method of the assembled composite floor slab of Example 1 comprises the following steps:

[0070] 1) Design and prefabrication of composite floor slab 6:

[0071] When the composite floor 6 is prefabricated, a through composite floor pipeline reserved hole 54 is provided on its side, the purpose of which is to adapt to the efficient pre-embedding of electromechanical equipment and the standardized and rapid installation of pipelines.

[0072] In order to adapt to the construction problems caused by the uneven top of the shear wall 55 or the frame structure column 1 in actual construction, a height-adjustable composite floor slab 58 is used, and the height-adjustable composite floor slab 58 and the floor slab steel bars are quickly positioned and tied through the steel bar truss 57, and the height of the height-adjustable composite floor slab 58 is adjusted through the L-shaped fixed adjustment screw 56;

[0073] Before the composite floor 6 is precast and poured, the bottom longitudinal main reinforcement 50 of the two rows of composite floor slabs at the bottom is welded to the shaped steel bar fixing ring 51, and then the fixing screw 3 is connected to the shaped steel bar fixing ring 51 through the connecting sleeve 68, and the H-shaped shaped sleeve 5 is put on;

[0074] 2) Transportation and storage of composite floor slab 6:

[0075] After transporting the composite floor slab 6 to the construction site by a special transport vehicle, the composite floor slab 6 is temporarily stored in a three-dimensional container-type stacking rack 61;

[0076] 3) Construction of cast-in-place shear wall bracing combined formwork system:

[0077] After installing the outer shear wall formwork 41 and the inner shear wall formwork 43 on both sides of the poured frame structure column 1, temporarily fix them with the tension screw 24, then install the cushioning wood block 40 and the reinforcing back rib 22, and fix them with the outer fixing nut 26 and the inner fixing nut 44;

[0078] On the poured lower floor slab 37, the bottom diagonal brace fixing ear plate fixing plate 32 and the upper diagonal brace fixing ear plate fixing plate 36 are arranged, and the reinforcing back rib 22 is respectively connected and fixed to the bottom diagonal brace fixing ear plate fixing plate 32 and the upper diagonal brace fixing ear plate fixing plate 36 by using the plug-in pin 25, the upper diagonal brace 39 and the bottom diagonal brace 35;

[0079] 4) Set up a multi-rod synchronous adjustment unit-type independent support system:

[0080] A jack fixing base 38 is arranged on the poured lower floor slab 37, and a vertical adjustment jack 31 is installed on the top of the jack fixing base 38, and each row of telescopic support rods 29 is connected into a unit through a longitudinal steel pipe 33;

[0081] 5) Installation of adjustable support bottom formwork for assembled composite floor:

[0082] Place one end of the composite floor support bottom formwork 45 on the cantilever support plate 20 and fix it with the rod fixing nut 19; at the same time, adjust the telescopic support rod 29 to a suitable position, and connect the fixing ring 18 under the composite floor support bottom formwork 45 to the telescopic support rod 29;

[0083] 6) Cast-in-place shear wall 55 casting and composite floor slab 6 hoisting construction:

[0084] The shear wall 55 is cast between the outer shear wall formwork 41 and the inner shear wall formwork 43 by using the shear wall 55 bracing combined formwork system and cured to the designed strength; the composite floor slab 6 is hoisted to the top of the composite floor slab supporting bottom formwork 45 by using a crane, and the electromechanical and pipeline installation is carried out at the same time;

[0085] 7) Installation of wet joint hanging formwork system for post-casting belt:

[0086] The hanging frame 9 is placed on the top edge of the composite floor slabs 6 on both sides, and the post-cast strip bottom formwork 12 is located at the bottom edge of the composite floor slabs 6 on both sides. At the same time, the post-cast strip bottom formwork 12 is suspended below the hanging frame 9 by using the tie rod 10 and the hanging plate 49, and fixed by the pressing plate 8, the pad board 14 and the longitudinal pressing plate 15;

[0087] 8) Casting construction of post-casting strip 47:

[0088] Before the wet joint hanging formwork system of the post-casting strip is fixed, the steel cage of the post-casting strip 47 is tied, and the post-casting strip 47 is cast from the gap at the top of the hanging frame 9 and cured to the design strength;

[0089] 9) Construction of local rigid reinforcement and fixing system of cantilevered I-beams of composite floor slabs:

[0090] Place the I-beam 46 on the top of the composite floor 6 between the H-shaped shaping sleeves 5, install the top pressure plate 2 on the top of the composite floor 6, and fix it with the fixing screw 3 and the pressure plate fixing nut 4; at the same time, use the fixing rod 71, sleeve 72, and fixing rod fastening nut 73 to fix the flange plate of the I-beam 46 on the fixing screw 3 for the installation of the unloading platform;

[0091] 10) Cast the upper floor slab and continue the construction of the upper composite floor slab 6:

[0092] Cast the upper floor slab on top of the composite floor slab 6 and continue the construction of the upper composite floor slab 6:

[0093] Remove the cast-in-place shear wall bracing composite formwork system, the multi-rod synchronous adjustment unit independent support system, the post-cast strip wet joint hanging formwork system and the prefabricated composite floor slab adjustable support bottom formwork, repeat steps 1) to 9), and continue the construction of the next layer of composite floor slab 6 until the entire project is completed.

[0094] The construction technical requirements of steel pipe welding and cutting, steel cage binding, concrete pouring, etc. in the implementation mode of the present invention are not described in detail, and the implementation mode of the present invention is explained in detail below with reference to the accompanying drawings and examples, which are not limited to the following examples. The parts not described in detail in this application are prior art, so this application does not describe them in detail.

[0095] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0096] Although this article uses more professional terms, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of this application; interpreting them as any additional restrictions is contrary to the spirit of this application.

[0097] The present application is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of this application. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present application.

Claims

1. The assembled composite floor slab is characterized by: include: A cast-in-place shear wall bracing composite formwork system is composed of a reinforcing back rib (22), a tensioning screw (24), an outer fixing nut (26), a bottom longitudinal strip (27), a bottom diagonal brace fixing ear plate fixing plate (32), a bottom diagonal brace (35), an upper diagonal brace fixing ear plate fixing plate (36), an upper diagonal brace (39), a shear wall outer formwork (41), a top longitudinal strip (42), a shear wall inner formwork (43), and an inner fixing nut (44), and is used for the pouring construction of a shear wall (55); the shear wall outer formwork (41) and the shear wall inner formwork (43) are The template (43) is clamped on both sides of the frame structure column (1) of the shear wall (55), and the other side of the inner template (43) of the shear wall is also provided with a reinforcing back rib (22). The tension screw (24) passes through the reserved holes on the side of the outer template (41) of the shear wall, the inner template (43) of the shear wall and the reinforcing back rib (22) in sequence, and is then fixed by the outer fixing nut (26) and the inner fixing nut (44) respectively; the bottom diagonal brace fixing ear plate fixing plate (32) and the upper diagonal brace fixing ear plate fixing plate (36) are located on the top of the poured lower floor slab (37); A multi-rod synchronously adjustable unit-type independent support system is composed of a telescopic support rod (29), a vertical adjustment jack (31), a longitudinal steel pipe (33), and a jack fixed base (38), and is mainly used to support and adjust a composite floor support bottom mold (45); the jack fixed base (38) is evenly arranged on the poured lower floor (37), and the vertical adjustment jack (31) is evenly arranged on the top of the jack fixed base (38); the top of the vertical adjustment jack (31) is connected to one end of the telescopic support rod (29), and the other end of the telescopic support rod (29) is connected to a fixing ring (18), and the fixing ring (18) is evenly arranged on the bottom of the longitudinal beam plate (17), and each row of telescopic support rods (29) are connected to form a unit through the longitudinal steel pipe (33); A post-cast strip wet joint hanging formwork system comprises a pressing plate (8), a hanging frame (9), a tie rod (10), a nut at the top of the tie rod (11), a post-cast strip bottom formwork (12), a nut at the bottom of the tie rod (13), a pad board (14), a longitudinal pressing plate (15), a screw fixing nut (16), a hanging plate shelving groove (48), and a hanging plate (49), and is used for wet joint construction between composite floor slabs (6); the hanging plate shelving grooves (48) are evenly arranged on the top of the hanging frame (9), and the hanging plate (49) is placed in the hanging plate shelving grooves (48); the post-cast strip bottom formwork (12) is suspended below the hanging frame (9) through the tie rod (10) and the hanging plate (49), and is stabilized by the pressing plate (8), the pad board (14) and the longitudinal pressing plate (15); A three-dimensional container-type stacking rack (61) is composed of vertical rods (62), transverse support rods (63), a storage box (64), longitudinal connecting rods (65), rollers (66), and a slide rail support plate (67), and is used for stacking laminated floor slabs (6); the vertical rods (62), transverse support rods (63), and longitudinal connecting rods (65) form the skeleton of the container-type stacking rack (61); transverse support rods (63) and longitudinal connecting rods (65) are arranged between the vertical rods (62); a slide rail support plate (67) is placed on the top of the transverse support rods (63); the storage box (64) is located on the top of the slide rail support plate (67); and a roller (66) is arranged at the bottom of the storage box (64); A height-adjustable composite floor (58) comprises an L-shaped fixed adjustment screw (56), a steel bar truss (57), a height-adjustable composite floor (58), a fixing nut (59) at the bottom of the height-adjustable composite floor, and a reserved hole (60) for the height-adjustable composite floor; the top of the height-adjustable composite floor (58) is provided with a plurality of rows of steel bar trusses (57), and both sides of the top of the height-adjustable composite floor (58) are provided with through reserved holes (60) for the height-adjustable composite floor; one end of the L-shaped fixed adjustment screw (56) is pre-buried in the top of the shear wall (55), and the other end thereof passes through the reserved hole (60) for the height-adjustable composite floor and is fixed by a fixing nut (59) at the bottom of the height-adjustable composite floor; The local stiffening and fixing system of the cantilevered I-beam of a composite floor comprises a top pressure plate (2), a fixing screw (3), a pressure plate fixing nut (4), an H-shaped standardized sleeve (5), an I-beam (46), a standardized steel bar fixing ring (51), a connecting sleeve (68), an I-beam web reserved hole (69), a sleeve ear plate (70), a fixing rod (71), a sleeve (72), and a fixing rod fastening nut (73), and is used for setting up an external cantilevered unloading platform; the I-beam (46) is cantilevered and placed on the top of the composite floor (6), and is fixed by the top pressure plate (2), the fixing screw (3) and the pressure plate fixing nut (4); at the same time, the flange plate of the I-beam (46) is fixed on the fixing screw (3) by the fixing rod (71), the sleeve (72), and the fixing rod fastening nut (73).

2. The assembled composite floor slab according to claim 1, characterized in that: A cushioning wood block (40) is provided between the inner side formwork (43) of the shear wall and the reinforcing back rib (22); the bottom of the inner side formwork (43) of the shear wall is placed on the top of the poured lower floor slab (37); a cantilever support plate (20) is provided on the side of the top attachment of the inner side formwork (43) of the shear wall; and a through cantilever support plate reserved hole (53) is provided on the top of the cantilever support plate (20).

3. The assembled composite floor slab according to claim 1, characterized in that: The outer side of the reinforcing back rib (22) is provided with a bottom longitudinal strip (27) and a top longitudinal strip (42), and the sides of the bottom longitudinal strip (27) and the top longitudinal strip (42) are evenly provided with a bottom ear plate (28) and a top ear plate (23) respectively; the bottom ear plate (28) is connected to one end of the bottom diagonal brace (35) through a plug-in pin (25), and the other end of the bottom diagonal brace (35) is connected to the bottom diagonal brace fixing ear plate (23) through a plug-in pin (25). 34), the bottom diagonal brace fixing ear plate (34) is evenly arranged on the bottom diagonal brace fixing ear plate fixing plate (32); the top ear plate (23) is connected to one end of the upper diagonal brace (39) through a plug-in pin (25), the other end of the upper diagonal brace (39) is connected to the upper diagonal brace fixing ear plate (30) through a plug-in pin (25), and the bottom diagonal brace fixing ear plate (34) is evenly arranged on the upper diagonal brace fixing ear plate fixing plate (36).

4. The assembled composite floor slab according to claim 1, characterized in that: The hanging frame (9) is placed on the top edge of the composite floor slabs (6) on both sides, the post-cast strip bottom mold (12) is located at the bottom edge of the composite floor slabs (6) on both sides, and the side of the composite floor slab (6) is provided with through composite floor slab pipeline reserved holes (54); screw rods (7) are evenly arranged at the bottom of both ends of the post-cast strip bottom mold (12), and pad boards (14) are respectively arranged between the center and edge of the bottom of the post-cast strip bottom mold (12) and the pressing plate (8), and the top of the pad board (14) is provided with a through pad board reserved hole (52).

5. The assembled composite floor slab according to claim 1, characterized in that: The pull rod (10) passes through the central reserved hole of the hanging plate (49), the bottom mold of the post-casting strip (12), the pad board (14) and the pressing plate (8) in sequence, and then the top and bottom of the pull rod (10) are fixed respectively using the pull rod top nut (11) and the pull rod bottom nut (13).

6. The assembled composite floor slab according to claim 1, characterized in that: The bottom of the composite floor support bottom formwork (45) is evenly provided with longitudinal beams (17), the bottom of one end of the composite floor support bottom formwork (45) is evenly provided with screws (7), and the bottom of the other end is evenly provided with composite floor support bottom formwork insertion rods (21); one end of the composite floor support bottom formwork (45) is placed on the top of the cantilever support plate (20), and the composite floor support bottom formwork insertion rods (21) respectively pass through the reserved holes (53) of the cantilever support plate and are fixed with insertion rod fixing nuts (19).

7. The assembled composite floor slab according to claim 1, characterized in that: The screw rods (7) at the bottom of the post-cast strip bottom formwork (12) and the composite floor support bottom formwork (45) are passed through the reserved holes of the pad board (14) and the pressure plate (8) in sequence, and the bottom of the screw rods (7) are fixed by screw rod fixing nuts (16) respectively.

8. The assembled composite floor slab according to claim 1, characterized in that: The fixing screw (3) is connected to the standardized steel bar fixing ring (51) through a connecting sleeve (68), and the standardized steel bar fixing ring (51) is connected to the longitudinal main bars (50) at the bottom of the two rows of the composite floor slab at the bottom; the web of the I-beam (46) is provided with an I-beam web reserved hole (69), and an H-shaped standardized sleeve (5) is sleeved on the connecting sleeve (68), and an I-beam (46) is provided between the H-shaped standardized sleeves (5).

9. The assembled composite floor slab according to any one of claims 1 to 8, characterized in that: The sleeve (72) is provided with sleeve ear plates (70) on both sides respectively. The sleeve (72) is sleeved on the fixing screw (3). The fixing rod (71) passes through the sleeve ear plates (70) and the reserved holes (69) of the I-beam web in sequence and is fixed by the fixing rod fastening nut (73).

Images