Ribbed floor forming structure adopting hoisting transition and construction method

Abstract

The invention relates to the technical field of building formworks, in particular to a ribbed floor slab forming structure adopting hoisting transition and a construction method. The forming structure comprises a plurality of formwork shells, a transition suspension beam and a supporting assembly; a connecting hole and a hoisting groove are formed in the binding face of the formwork, the transition suspension beam is used for transitionally supporting a formwork array and comprises a cross beam body, a supporting part, a movable part, a supporting plate and a nut, and the supporting assembly comprises a plurality of vertical rods, a transverse rod and a jacking and is used for supporting the edges or corners of the formwork array. According to the method, the transition suspension beam is firstly installed, the formwork can be directly laid on the main beam side formwork or the supporting plate of the transition suspension beam, finally, the supporting assembly is erected at the bottom of the formwork array, bottom supporting of the formwork is achieved, finally, the transition suspension beam is dismantled, the installation efficiency of the formwork is improved, and waste of steel bar materials cannot be caused.

Description

Technical Field

[0001] The invention relates to the technical field of building formwork, and in particular to a ribbed floor slab forming structure using hoisting transition and a construction method. Background Art

[0002] Traditional dense-ribbed slabs are generally used in non-prefabricated buildings, and the entire construction process is carried out on site. Usually, a full-height scaffolding is first built under the construction surface as a basic support, and then the bracket is installed → the primary and secondary wooden slats are installed → the bottom elevation and arch of the dense-ribbed slab are adjusted → the formwork is installed, and finally concrete is poured to complete the construction of the dense-ribbed slab. This method is a typical non-prefabricated building construction process.

[0003] When erecting a full-floor scaffold, the width of the formwork needs to be considered so that the wooden formwork above the scaffolding can accurately support the edges or corners of the formwork, and the height of the top wooden formwork needs to be considered. Therefore, the erection requirements for the scaffolding are relatively high, which will delay the erection efficiency of the scaffolding and reduce the overall installation efficiency. In the prior art, there is a method of directly hoisting the formwork with prefabricated steel trusses without the need for bottom support. However, when this method is used, the selection of steel trusses must be larger than that of steel bars with bottom support. The steel trusses are not removed and buried in concrete as part of the steel cage frame, which will cause waste of consumable materials. Therefore, a scheme for erecting a formwork with less material waste and high construction efficiency is continued. Summary of the invention

[0004] The problem solved by the present invention is that in the prior art, direct installation using a full-floor scaffolding will result in low efficiency, and the use of embedded steel trusses will result in material waste. The present invention provides a low-cost, high-efficiency ribbed floor slab forming structure and construction method using hoisting transition.

[0005] The present invention is implemented through the following technical scheme: a multi-ribbed floor slab forming structure using hoisting transition, including a plurality of formworks, transition suspension beams, and support components;

[0006] The mold shell comprises a mold shell top surface, and a circle around the mold shell top surface is connected to a mold shell side surface extending downward, and the mold shell top surface and the mold shell side surface enclosed therewith form a cavity inside, and the lower edge of the mold shell side surface continues to extend horizontally outward to form a flange edge, and the outer contour of a circle of the flange edge is a rectangle, and the vertical end surface of the free end of the outer edge of the flange edge is a fitting surface between the mold shells.

[0007] Two, three or four adjacent fitting surfaces of the flange edge are provided with connecting holes, and the connecting holes are horizontally arranged to pass through the cavity to the fitting surface and are perpendicular to the fitting surface.

[0008] One or two symmetrical fitting surfaces of the flange edge are provided with a hanging groove, the hanging groove is located on the fitting surface and passes through the upper and lower surfaces of the flange edge, the hanging groove and the connecting hole are staggered, and the position where the hanging groove can be provided on the fitting surface includes the middle and edge of the fitting surface,

[0009] A plurality of mold shells are arranged in an array, the upper and lower surfaces of all the mold shells are coplanar, the fitting surfaces of any two adjacent mold shells fit each other, the adjacent mold shells are connected by first fasteners penetrating the connecting holes, the hanging grooves on the adjacent mold shells are symmetrical along the fitting surface, the two hanging grooves can be combined to form a hanging hole that passes through the upper and lower surfaces of the flange edge, and the hanging hole is located on the longitudinal fitting surface or the transverse fitting surface of the two fitting surfaces of all the mold shells.

[0010] The transition suspension beam is used to provide transitional support for the formwork array, and includes a beam body, a support portion, a movable part, a support plate, and a nut. The length of the beam body is greater than the span of the floor slab. The support portions are located at both ends of the beam body and are used to support the beam body. The movable part is movably arranged at the bottom of the beam body and can at least move horizontally in a direction perpendicular to the length of the beam body. A screw structure is provided below the movable part. A through hole is provided in the middle of the support plate. When the support plate is working, it can support the flange edges of two formworks at the same time. The movable part passes through the support plate and is connected with the nut. The height of the support plate can be adjusted by rotating the nut. The movable part, the support plate, and the nut are provided in a plurality of groups and are arranged at intervals along the length direction of the beam body.

[0011] In the formwork array, both sides of each row of formwork are supported by the main beam side formwork or the transition suspension beam. Each transition suspension beam supports the flange edges of two rows of formwork in the formwork array at the same time. The movable parts pass through the support plate and the lifting holes and are threadedly connected with the nuts. The support plate supports the flange edges of the two formworks at the same time.

[0012] The support assembly includes a plurality of vertical rods, horizontal rods, and top supports, which are used to support the edges or corners of the flange of the mold shell.

[0013] Furthermore, an annular member is fixedly provided on the top of the movable member, a plurality of cross bars are provided on the bottom of the cross beam body, and the annular member is sleeved on the cross bars.

[0014] Furthermore, the support plate is rectangular.

[0015] Furthermore, the crossbeam body is one of section steel, steel bar truss and steel truss.

[0016] Furthermore, the support portion adopts a height-adjustable structure.

[0017] Another aspect of the present invention provides a construction method of a multi-ribbed floor slab using hoisting transition, which uses the above multi-ribbed floor slab forming structure using hoisting transition. The construction method comprises:

[0018] Preparation before construction: Complete the prefabrication of formwork, transition suspension beams, and fasteners according to construction requirements, and set up the side formwork of the main beam according to the drawings to determine the installation height of the bottom surface of the ribbed floor;

[0019] Construction process:

[0020] Step 1: Set up the formwork: Use one of the following two methods to set up:

[0021] Method 1: Use the method of building in sequence:

[0022] First, install all transition suspension beams, set up transition suspension beams at fixed points according to the requirements of the drawings, and place the support part on the main beam template; then, start from one corner of the main beams around and successively set up the formwork along one side of the main beam, and then successively set up the remaining formwork along the set up formwork until all the formwork is installed. The adjacent formworks are fastened and connected through the first fastener penetrating the connection hole. The two lifting grooves are combined into a lifting hole. The screw part of the movable part is located in the lifting hole. The nut is turned to adjust the height of the support plate. Each support plate supports the two formworks at the same time; then install the support assembly, including a number of vertical poles, horizontal poles, and top supports, and the top supports support the edges or corners of the formwork array; finally, remove the transition suspension beam;

[0023] Method 2: Alternating method:

[0024] Alternate transition suspension beams and formworks, that is, after each transition suspension beam is installed, a row of formworks is installed. When installing the formworks, adjacent formworks are fastened and connected by first fasteners penetrating the connection holes. Two lifting grooves are combined into one lifting hole. The rod of the movable part is located in the lifting hole. The nut is turned to adjust the height of the support plate. Each support plate supports two formworks at the same time. Starting from the second row of formworks, after each row of formworks is installed, the top support, vertical poles, and horizontal poles under the two rows of formworks are installed, and a transition suspension beam above the formwork that has been supported by the support assembly is removed, until all formworks are installed, all support assemblies are installed, and all transition suspension beams are removed.

[0025] Step 2: Tie the steel bars, including the transverse and longitudinal ribbed slab steel bars and the surface bars above the formwork;

[0026] Step 3: pouring concrete and curing;

[0027] Step 4: After curing and molding, remove the support assembly, the first fastener, and the mold shell for repeated use.

[0028] Furthermore, in step one, the specific steps of installing the formwork include:

[0029] Install the first mold shell: before installing the first mold shell, move the movable part to the side away from the first mold shell. When installing the first mold shell, place the two sides of the mold shell on the side mold of the main beam, move the movable part so that the rod of the movable part is embedded in the hoisting groove of the mold shell, rotate the nut, and adjust the height of the support plate. At this time, the support plate plays a supporting role on the edge of the mold shell;

[0030] Install the remaining formworks in the first row: install the first row of formworks along the length direction of the transition suspension beam. The installation method is the same as that of the first formwork. Starting from the second formwork, each time a formwork is installed, the mating surface of the newly installed formwork is pressed against the mating surface of the installed formwork, and the first fastener is inserted through the connection hole to fasten the two formworks together.

[0031] Install the second row of formwork: move the movable part of the second transition suspension beam to the side away from the second row of formwork, tilt the formwork from bottom to top, place one side of the formwork on the support plate of the first transition suspension beam, align the lifting slots of the second row of formwork with the lifting slots of the first row of formwork, then lift the other side of the second row of formwork until it is horizontal, move the movable part of the second transition suspension beam, so that the rod of the movable part is embedded in the lifting slot of the second row of formwork, and at this time, the support plate of the second transition suspension beam supports the second row of formwork; in this process, each time a formwork is installed, the fitting surface of the newly installed formwork and the installed formwork are pressed tightly, and the two formworks are fastened and connected by passing the first fastener through the connecting hole, the lifting slots of the first row of formwork and the second row of formwork are spliced ​​into a lifting hole, the rod of the movable part passes through the lifting hole, and the support plate supports the two rows of formwork at the same time;

[0032] Install the remaining formwork: The installation method is the same as that for the second row of formwork until all formwork is installed.

[0033] Furthermore, the pallet is rectangular. Before installing the mold shell, the pallet is rotated so that the long side of the pallet is facing the mold shell to be installed. After installing the mold shell, the pallet is rotated so that the short side of the pallet is facing the installed mold shell, so as to reduce the interference of the pallet on the installation of the mold shell.

[0034] Furthermore, when installing the support assembly, the outermost vertical poles and the main beam scaffolding are connected as a whole through the cross bar.

[0035] The beneficial effects of the present invention are:

[0036] 1. The transition suspension beam is prefabricated in the factory and can be directly installed after being transported to the construction site. The formwork can be directly laid on the side formwork of the main beam or the pallet of the transition suspension beam. The laying of the formwork is very convenient. The overall installation height of the formwork is controlled by the beam body and the nut, which is convenient to adjust. Finally, the support assembly is set up at the bottom of the formwork array to achieve the bottom support of the formwork, and finally the transition suspension beam is removed. Compared with directly installing the scaffolding first and then laying the formwork, there is only one more process of installing and removing the transition suspension beam, but the formwork installation will be faster, and there is no need to worry about the problem of inaccurate top support position when setting up the support assembly. Compared with directly using steel trusses, and the steel trusses are buried in concrete as steel bars, in order to meet the load requirements, the specifications of the steel trusses will be larger than those of the steel bars tied at the construction site. Therefore, this solution will not cause waste of steel materials.

[0037] 2. The flange edge of the mold shell used in the present invention is provided with a hanging groove, and the hanging grooves of two or four mold shells can be assembled into a hanging hole. When installing, the rod of the movable part can be embedded into the hanging groove, and there is no need to perforate the installation, which improves the installation efficiency. In addition, two mold shells share one hanging hole, which reduces the number of holes on the mold shell.

[0038] 3. The movable part of the transition suspension beam of the present invention can move horizontally in a direction perpendicular to the length of the steel truss. The horizontal movement is for the convenience of installation and can avoid the interference of the support plate below with the installation of the formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A top three-dimensional view of the mold shell in Example 1;

[0040] Figure 2 This is a three-dimensional bottom view of the mold shell in Example 1;

[0041] Figure 3 It is a structural schematic diagram of a transition suspension beam of an embodiment;

[0042] Figure 4 for Figure 3 A partial enlarged view of the

[0043] Figure 5 It is the left view of the transition suspension beam;

[0044] Figure 6 A simplified view of the support assembly;

[0045] Figure 7 Schematic diagram of the transition suspension beam not yet removed in order to install the support assembly;

[0046] Figure 8 The construction process of Example 2 Figure 1 ;

[0047] Fig. 9 The construction process of Example 2 Figure 2 ;

[0048] Fig.10 The construction process of Example 2 Figure 3 ;

[0049] Fig.11 The construction process of Example 2 Figure 4 ;

[0050] Fig.12 This is a schematic diagram of the mold shell installation;

[0051] Fig.13 The construction process of Example 3 Figure 1 ;

[0052] Fig.14 The construction process of Example 3 Figure 2 ;

[0053] Fig.15 The construction process of Example 3 Figure 3 ;

[0054] Fig.16 The construction process of Example 3 Figure 4 ;

[0055] Fig.17 The construction process of Example 3 Figure 5 ;

[0056] Fig.18 The construction process of Example 3 Figure 6 .

[0057] In the figure:

[0058] 10 mold shell; 11 mold shell top surface; 12 mold shell side surface; 13 cavity; 14 flange edge; 15 fitting surface; 16 connection hole; 17 lifting groove;

[0059] 20 transition suspension beam; 21 cross beam body; 22 movable part; 23 support plate; 24 nut; 25 support part;

[0060] 30 support assembly; 31 vertical rod; 32 horizontal rod; 33 top support;

[0061] 41 main beam formwork; 42 main beam side formwork; 43 main beam scaffolding;

[0062] 5. Self-propelled hydraulic lift truck. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] Embodiment 1

[0065] A ribbed floor forming structure using hoisting transition includes a plurality of formwork shells 10, a suspension beam 20, and a support assembly 30.

[0066] like Figure 1-2 As shown, the mold shell 10 includes a horizontal mold shell top surface 11, and the mold shell top surface 11 is connected to a downwardly extending mold shell side surface 12 in a circle. The mold shell top surface 11 and the mold shell side surface 12 enclosed therewith form a cavity 13 inside, and the lower edge of the mold shell side surface 12 continues to extend horizontally outward to form a flange edge 14. The outer contour of a circle of flange edges 14 is a rectangle, and the vertical end surface of the free end of the outer edge of the flange edge 14 forms a fitting surface 15 that abuts against each other between the mold shells 10.

[0067] The four fitting surfaces 15 in the flange edge 14 are all provided with connecting holes 16, and the connecting holes 16 are horizontally arranged to pass through the cavity 13 to the fitting surface 15 and are perpendicular to the fitting surface 15. Each fitting surface 15 is provided with four connecting holes 16, and the four connecting holes 16 are symmetrically arranged along the length direction of the fitting surface 15.

[0068] The two symmetrical fitting surfaces 15 in the flange edge 14 are provided with hanging grooves 17, and the hanging grooves 17 are located on the fitting surface 15 and pass through the upper and lower surfaces of the flange edge 14. The hanging grooves 17 and the connecting holes 16 do not interfere with each other. The cross-section of the hanging grooves 17 is semicircular, and the fitting surface 15 where the hanging grooves 17 are located is provided with three hanging grooves 17, and the hanging grooves 17 are symmetrically arranged along the length direction of the fitting surface 15.

[0069] like Fig.11 As shown, there are 36 mold shells 10 in total, which are arranged in a 6×6 array. The flange edge 14 of a single mold shell 10 is 1200 mm wide, and the upper and lower surfaces of all the mold shells 10 are coplanar. The fitting surfaces 15 of any two adjacent mold shells 10 fit together, and the adjacent mold shells 10 are connected by first fasteners passing through the connecting holes 16. The lifting grooves 17 on the adjacent mold shells 10 are symmetrical along the fitting surfaces 15, and two of them can be combined to form a lifting hole that passes through the upper and lower surfaces of the flange edge 14. The lifting holes are located on the longitudinal fitting surfaces 15 of all the mold shells 10 that fit together. There are 18 lifting holes in each row, and there are 5 rows in total.

[0070] like Figure 8 As shown, there are 5 sets of transition suspension beams 20, such as Figure 3-5 As shown, the transition suspension beam 20 includes a beam body 21, a support portion 25, a movable part 22, a support plate 23, and a nut 24. The length of the beam body 21 is 7500mm, which is slightly larger than the width of the formwork array 7200mm and slightly larger than the width of the floor slab. The beam body 21 is formed by welding two channel steels. The support portion 25 is located at both ends of the beam body 21 and is used to support the beam body 21. An annular part is provided on the top of the movable part 22, and a plurality of cross bars are provided at the bottom of the beam body 21. The annular part is sleeved on the cross bar, and a certain gap can be set between the annular part and the cross bar to improve fault tolerance. Therefore, the movable part 22 can move horizontally in a direction perpendicular to the length of the beam body 21. The bottom of the movable part 22 is a screw structure, and the support plate 23 is rectangular, 200mm long and 100mm wide. A through hole is provided in the middle. When the support plate 23 is working, it can support the flange edges 14 of the two mold shells 10 at the same time. The supporting surface of each mold shell 10 is 100mm×100mm; the movable part 22 is connected through the support plate 23 and the nut 24. The height of the support plate 23 can be adjusted by rotating the nut 24. There are eighteen groups of movable parts 22, support plates 23, and nuts 24, which are arranged at intervals along the length direction of the beam body 21.

[0071] like Fig.10 As shown, in the mold shell 10 array, both sides of each row of mold shells 10 are supported by the main beam side molds 42 or the transition suspension beams 20, and each transition suspension beam 20 simultaneously supports the flange edges 14 of two rows of mold shells 10 in the mold shell 10 array, and the rod portion of the movable part 22 passes through the support plate 23 and the lifting hole and is threadedly connected with the nut 24, and the support plate 23 simultaneously supports the flange edges 14 of the two rows of mold shells 10.

[0072] like Figure 6 , 7 As shown in FIG. 11 , the support assembly 30 includes a plurality of vertical rods 31, horizontal rods 32, and top supports 33, which are used to support all four common top corners of the formwork array. After the support is completed, the upper transition suspension beam 20 can be removed.

[0073] In this solution, there is no need for floor decking, and the formwork 10 is suspended in a transitional manner through the transition suspension beam 20, which reduces the use of consumable materials and reduces costs. The transition suspension beam 20 is prefabricated in the factory and can be directly installed after being transported to the construction site. The formwork can be directly laid on the main beam side form 42 or the support plate 23 of the transition suspension beam 20. The laying of the formwork 10 is very convenient. The overall installation height of the formwork 10 is controlled by the crossbeam body 21 and the nut 24, which is convenient to adjust. Finally, a support assembly 30 is set up at the bottom of the formwork array to support the bottom of the formwork 10, and finally the transition suspension beam 20 is removed. Compared with directly installing the scaffolding first and then laying the formwork 10, there is only one more process of installing and removing the transition suspension beam 20, but the formwork 10 will be installed more quickly, and there is no need to worry about the problem of inaccurate top support position when setting up the support assembly 30. Compared with directly using a steel truss, and the steel truss is buried in the concrete as a steel bar, the steel truss has a larger specification than the steel bar tied at the construction site in order to meet the load requirements, so this solution will not cause waste of steel bar materials. In this solution, the transition suspension beam 20, the formwork 10, and the support assembly 30 can all be used in a turnover manner, reducing costs.

[0074] In other embodiments, the number, position, and shape of the connecting holes 16 and the hoisting slots 17 can be adjusted according to actual conditions to meet the hoisting requirements.

[0075] In other embodiments, the movable member 22 may also adopt other structures, such as a sleeve, a slider, etc., as long as the movable member 22 can move horizontally along a direction perpendicular to the length of the beam body 21.

[0076] In other embodiments, the cross beam body 21 may also be made of other steel sections, such as I-beams, H-beams, square tubes, etc., or a steel truss or a steel truss, as long as it can meet the requirements of large-span support.

[0077] In other embodiments, the support portion 25 adopts a height-adjustable structure, and the height of the beam body 21 can be adjusted as a whole.

[0078] Embodiment 2

[0079] Another aspect of the present invention provides a construction method of a multi-ribbed floor with a high assembly rate, such as Figure 8-12 As shown, the structure of the formwork 10 and the transition suspension beam 20 in the first embodiment is adopted, and the construction method includes:

[0080] Preparation before construction: prefabrication of the formwork 10, transition suspension beam 20, and fasteners is completed according to the construction requirements, and the main beam side formwork 42 is set up according to the drawings to determine the installation height of the bottom surface of the multi-ribbed floor;

[0081] Construction process:

[0082] Step 1: Set up the formwork 10, using the following method:

[0083] Install the suspension beams. Set up five sets of transition suspension beams 20 at fixed points according to the drawing requirements. The support parts 25 are placed on the main beam template 41. Figure 8 As shown, there are five transition suspension beams 20, which are hoisted to the main beam template 41 by a tower crane or other hoisting tools, arranged in parallel, and positioned on site;

[0084] Install the formwork 10, such as Figure 9-11 As shown, formwork 10 is sequentially erected along one side of the main beam starting from a corner of the surrounding main beams, and the remaining formwork 10 is subsequently erected along the erected formwork 10 until all formwork 10 are installed. Adjacent formwork 10 are fastened and connected by first fasteners penetrating the connecting holes 16. The installed formwork 10 is tightened in time to improve the installation accuracy and avoid the problem of misalignment of the hoisting groove 17 of the subsequent formwork 10 and the rod of the movable part 21 caused by cumulative errors. The two hoisting grooves 17 are combined into a hoisting hole, and the rod of the movable part 21 is located in the hoisting hole. Each support plate 23 supports the two formworks 10 at the same time. The specific steps of installing the formwork 10 include:

[0085] Install the first mold shell 10: Before installing the first mold shell 10, move the movable part 22 to a side away from the first mold shell 10. When installing the first mold shell 10, place the two sides of the mold shell 10 on the main beam side mold 42, move the movable part 22, and make the rod of the movable part 21 embedded in the hoisting groove 17 of the mold shell 10. At this time, the support plate 23 supports the edge of the mold shell 10, and the first mold shell 10 is installed.

[0086] Install the remaining formwork shells 10 of the first row: Install the first row of formwork shells 10 along the length direction of the transition suspension beam 20. The installation method is the same as that of the first formwork shell 10. Starting from the second formwork shell 10, each time a formwork shell 10 is installed, the mating surface 15 of the newly installed formwork shell 10 is tightly attached to the installed formwork shell 10, and the two formwork shells 10 are fastened and connected by fasteners penetrating the connection holes 16; Fig. 9 As shown, the first row of mold shells 10 are installed;

[0087] Install the second row of formwork 10: Fig.12As shown, the installation process of the second row of formwork 10 is from top to bottom. Move the movable part 22 of the second transition suspension beam 20 to the side away from the second row of formwork 10, and the formwork 10 is tilted and moved from bottom to top. Place one side of the formwork 10 on the support plate 23 of the first transition suspension beam 20, align the lifting groove 17 of the second row of formwork 10 with the lifting groove 17 of the first row of formwork 10, and then lift the other side of the second row of formwork 10 until it is horizontal, move the movable part 22 of the second transition suspension beam 20, and make the rod part 24 of the movable part embedded in the lifting groove 17 of the second row of formwork 10. At this time, the support plate 23 of the second transition suspension beam 20 supports the second row of formwork 10; in this process, each time a formwork 10 is installed, the fitting surface 15 of the newly installed formwork 10 and the installed formwork 10 are pressed tightly together, and the two formworks 10 are fastened and connected by fasteners penetrating the connection hole 16. The hoisting grooves 17 of the first row of formwork 10 and the second row of formwork 10 are combined into a hoisting hole, and the rod 24 of the movable part passes through the hoisting hole, and the support plate 23 supports the two rows of formwork 10 at the same time. The movable part 22 of the transition suspension beam 20 can move horizontally in a direction perpendicular to the length of the steel truss 21. The horizontal movement is for the convenience of installation and can avoid the interference of the support plate 23 below on the installation of the formwork 10.

[0088] Install the remaining formwork 10: The installation method is the same as that of the second row of formwork 10, until all the formwork 10 are installed. Fig.10 As shown, all the mold shells 10 are installed successfully.

[0089] Then install the support assembly 30, such as Figure 6-7 As shown, the support assembly 30 includes a plurality of vertical poles 31, a cross bar 32, and a top support 33, and the top support 33 supports all four common top corners of the formwork array; the vertical poles 31 are connected by the cross bar 32, and the vertical poles 31 and the main beam scaffold 43 are also connected as a whole by the cross bar 32, so as to improve the overall stability of the support assembly 30, and according to actual needs, diagonal braces can be installed. During installation, the adjusting nut is turned to adjust the height of the top support 33 so that the top support 33 just counteracts the corners of the four formworks 10, as shown in FIG. Fig.10 As shown, all the support components 30 are installed.

[0090] Finally, remove the transition suspension beam 20; turn the nut 24, remove all nuts 24 and the support plate 23 from the bottom, remove the beam body 21 and the support part 25 from the top, and use them in rotation. Fig.11 This is the state after the transition suspension beam 20 is removed.

[0091] Step 2: Tie the steel bars, including the transverse and longitudinal ribbed slab steel bars and the surface bars above the formwork;

[0092] Step 3: pouring concrete and curing;

[0093] Step 4: After curing and molding, the support assembly 30, the first fastener, and the mold shell 10 are removed and reused.

[0094] In this solution, there is no need for floor decking, and the formwork 10 is suspended in a transitional manner through the transition suspension beam 20, which reduces the use of consumable materials and reduces costs. The transition suspension beam 20 is prefabricated in the factory and can be directly installed after being transported to the construction site. The formwork can be directly laid on the main beam side form 42 or the support plate 23 of the transition suspension beam 20. The laying of the formwork 10 is very convenient. The overall installation height of the formwork 10 is controlled by the crossbeam body 21 and the nut 24, which is convenient to adjust. Finally, a support assembly 30 is set up at the bottom of the formwork array to support the bottom of the formwork 10, and finally the transition suspension beam 20 is removed. Compared with directly installing the scaffolding first and then laying the formwork 10, there is only one more process of installing and removing the transition suspension beam 20, but the formwork 10 will be installed more quickly, and there is no need to worry about the problem of inaccurate top support position when setting up the support assembly 30. Compared with directly using a steel truss, and the steel truss is buried in the concrete as a steel bar, the steel truss has a larger specification than the steel bar tied at the construction site in order to meet the load requirements, so this solution will not cause waste of steel bar materials. In this solution, the transition suspension beam 20, the formwork 10, and the support assembly 30 can all be used in a turnover manner, reducing costs.

[0095] In practical applications, the support plate 23 is rectangular. Before installing the mold shell 10, the support plate 23 is rotated so that the long side of the support plate 23 is facing the mold shell 10 to be installed. After installing the mold shell 10, the support plate 23 is rotated so that the short side of the support plate 23 is facing the installed mold shell 10, so as to reduce the interference of the support plate 23 with the installation of the mold shell 10. Fig.12 As shown, before and after installation, the support plate 23 is rotated to reduce interference.

[0096] Embodiment 3

[0097] like Figure 13-18 As shown, the difference from the second embodiment is that:

[0098] In step 1, when erecting the formwork 10, an alternating erection method is adopted:

[0099] The transition suspension beams 20 and the formwork 10 are alternately suspended, that is, after each transition suspension beam 20 is installed, a row of formwork 10 is installed. When installing the formwork 10, the adjacent formwork 10 are fastened and connected by the first fastener penetrating the connecting hole 16. The two hanging grooves 17 are combined into a hanging hole. The rod portion of the movable part 21 is located in the hanging hole. The nut 24 is rotated to adjust the height of the support plate 23. Each support plate 23 supports the two formworks 10 at the same time; and starting from the second row of formworks 10, after each row of formworks 10 is installed, the top support 33, the vertical pole 32, and the horizontal pole 32 under the two rows of formworks 10 are installed, and a transition suspension beam 20 above the formwork 10 that has been supported by the support assembly 30 is removed, until all the formworks 10 are installed, all the support assemblies 30 are installed, and all the transition suspension beams 20 are removed; Fig.13 As shown, a transition suspension beam 20 is built and a formwork 10 is installed, and then, as shown in Fig.14 As shown, after installing the entire row of formwork 10, Fig.15 As shown, a transition suspension 20 is set up, such as Fig.16 As shown, install the second row of formwork 20, install the vertical rods 31, crossbars 32, and top supports 33 under the first and second rows of formwork 10, remove the first transition suspension 20, and install the third transition suspension 20, as shown in FIG. Fig.17 As shown, the third row of formwork 20 is installed, the vertical poles 31, cross bars 32, and top supports 33 under the second and third rows of formwork 10 are installed, and the second transition suspension 20 is removed, and the fourth transition suspension 20 is installed, until all formwork 10 are installed, all support assemblies 30 are installed, and all transition suspension beams 20 are removed, as shown in FIG. Fig.18 shown.

[0100] Compared with the second embodiment, this embodiment requires less materials, and only two steel suspension beams are needed to complete the transitional lifting work of all the formworks, which has lower costs. In addition, the workers laying the formworks above and the workers erecting the scaffolds below can work at the same time without affecting efficiency.

[0101] In practical applications, the construction of the present invention is very convenient, and there is no need for a full-floor scaffolding. Workers can stand on the self-propelled hydraulic lift 5 to perform installation work, which can improve the installation efficiency of the installers. There is no need to climb scaffolding, which is safer.

[0102] In other embodiments, the support assembly 30 may support only the middle of the flange edge of the formwork instead of the corners, which can also meet the construction requirements.

[0103] In summary, the present invention improves the installation efficiency of the formwork and does not cause waste of steel bar materials.

[0104] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above implementation is only to illustrate the technical concept and features of the present invention, and its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and it cannot be used to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A ribbed floor forming structure using hoisting transition, characterized in that: It comprises a plurality of formworks (10), transition suspension beams (20), and a support assembly (30); The mold shell (10) comprises a mold shell top surface (11), and a mold shell side surface (12) extending downward is connected to the mold shell top surface (11) in a circle. The mold shell top surface (11) and the mold shell side surface (12) enclosed therewith form a cavity (13) inside. The lower edge of the mold shell side surface (12) continues to extend horizontally outward to form a flange edge (14). The outer contour of a circle of the flange edge (14) is a rectangle. The vertical end surface of the free end of the outer edge of the flange edge (14) is a fitting surface (15) that abuts against each other between the mold shells (10). Two, three or four adjacent fitting surfaces (15) in the flange edge (14) are provided with connecting holes (16), and the connecting holes (16) are horizontally arranged to pass through the cavity (13) to the fitting surface (15) and are perpendicular to the fitting surface (15). One or two symmetrical fitting surfaces (15) of the flange edge (14) are provided with a hanging groove (17), the hanging groove (17) is located on the fitting surface (15) and passes through the upper and lower surfaces of the flange edge (14), the hanging groove (17) and the connecting hole (16) are staggered, and the position on the fitting surface (15) where the hanging groove (17) can be provided includes the middle and edge of the fitting surface (15), A plurality of mold shells (10) are arranged in an array, the upper and lower surfaces of all the mold shells (10) are coplanar, the fitting surfaces (15) of any two adjacent mold shells (10) fit each other, the adjacent mold shells (10) are connected by first fasteners penetrating through the connecting holes (16), the hanging grooves (17) on the adjacent mold shells (10) are symmetrical along the fitting surfaces (15), the two hanging grooves (17) can be combined to form a hanging hole that passes through the upper and lower surfaces of the flange edge (14), and the hanging hole is located on the longitudinal fitting surfaces (15) or the transverse fitting surfaces (15) of all the mold shells (10) that fit each other. The transition suspension beam (20) is used to provide transitional support for the formwork (10) array, and comprises a beam body (21), a support portion (25), a movable member (22), a support plate (23), and a nut (24). The length of the beam body (21) is greater than the span of the floor slab. The support portion (25) is located at both ends of the beam body (21) and is used to support the beam body (21). The movable member (22) is movably arranged at the bottom of the beam body (21) and can at least be moved in a direction perpendicular to the length of the beam body (21). The movable member (22) is arranged to move horizontally, a screw structure is provided below the movable member (22), a through hole is provided in the middle of the support plate (23), and the support plate (23) can support the flange edges (14) of the two mold shells (10) at the same time when working; the movable member (22) passes through the support plate (23) and is connected with the nut (24), and the height of the support plate (23) can be adjusted by rotating the nut (24), and the movable member (22), the support plate (23), and the nut (24) are provided in a plurality of groups, and are arranged at intervals along the length direction of the cross beam body (21); In the formwork (10) array, both sides of each row of formwork (10) are supported by the main beam side formwork (42) or the transition suspension beam (20), and each transition suspension beam (20) simultaneously supports the flange edges (14) of two rows of formwork (10) in the formwork (10) array, and the movable part (22) passes through the support plate (23) and the lifting hole and is threadedly connected with the nut (24), and the support plate (23) simultaneously supports the flange edges (14) of the two formworks (10); The support assembly (30) comprises a plurality of vertical rods (31), horizontal rods (32), and top supports (33), and is used to support the edges or corners of the flange edge (14) of the mold shell (10).

2. The ribbed floor forming structure that can be efficiently installed according to claim 1 is characterized in that: A ring-shaped member is fixedly arranged on the top of the movable member (22), a plurality of cross bars (32) are arranged on the bottom of the cross beam body (21), and the ring-shaped member is sleeved on the cross bars (32).

3. The ribbed floor forming structure that can be efficiently installed according to claim 1 is characterized in that: The support plate (23) is rectangular.

4. The ribbed floor forming structure that can be efficiently installed according to claim 1 is characterized in that: The crossbeam body (21) is one of a section steel, a steel bar truss, and a steel truss.

5. The ribbed floor forming structure that can be efficiently installed according to claim 1 is characterized in that: The support portion (25) adopts a height-adjustable structure.

6. A construction method of a multi-ribbed floor slab using hoisting transition, characterized in that: The ribbed floor forming structure with hoisting transition as claimed in any one of claims 1 to 5 is adopted, and the construction method comprises: Preparation before construction: prefabrication of the formwork (10), transition suspension beam (20) and fasteners is completed according to construction requirements, and the main beam side formwork (42) is set up according to the drawings to determine the installation height of the bottom surface of the multi-ribbed floor; Construction process: Step 1: erecting the formwork (10): the formwork is erected in one of the following two ways: Method 1: Use the method of building in sequence: First, all transition suspension beams (20) are installed. The transition suspension beams (20) are set at fixed points according to the requirements of the drawings, and the support parts (25) are placed on the main beam template (41); then, starting from one corner of the main beams on all sides, the formwork (10) is sequentially set up along one side of the main beam, and then the remaining formwork (10) is sequentially set up along the already set formwork (10) until all the formworks (10) are installed. The adjacent formworks (10) are fastened and connected by first fasteners penetrating the connection holes (16). Then, the two hanging grooves (17) are assembled into a hanging hole, the screw part of the movable part (22) is located in the hanging hole, the nut (24) is turned to adjust the height of the support plate (23), and each support plate (23) supports the two mold shells (10) at the same time; then the support assembly (30) is installed, including a plurality of vertical rods (31), horizontal rods (32), and top supports (33), and the top supports (33) support the edges or corners of the array of mold shells (10); finally, the transition suspension beam (20) is removed; Method 2: Alternating method: The transition suspension beam (20) and the formwork (10) are alternately installed, that is, after each transition suspension beam (20) is installed, a row of formworks (10) is installed. When installing the formworks (10), the adjacent formworks (10) are fastened and connected by a first fastener penetrating the connection hole (16). The two hanging grooves (17) are combined into a hanging hole. The rod of the movable part (22) is located in the hanging hole. The nut (24) is turned to adjust the height of the support plate (23). Each support plate (23) simultaneously supports two formworks. The shell (10) plays a supporting role; and starting from the second row of the formwork shells (10), after each row of the formwork shells (10) is installed, the top supports (33), the vertical poles (31), and the horizontal poles (32) below the two rows of formwork shells (10) are installed, and a transition suspension beam (20) above the formwork shell (10) that has been supported by the support assembly (30) is removed, until all the formwork shells (10) are installed, all the support assemblies (30) are installed, and all the transition suspension beams (20) are removed; Step 2: tying the steel bars, including the transverse and longitudinal ribbed floor steel bars and the surface bars above the formwork (10); Step 3: pouring concrete and curing; Step 4: After curing and molding, the support assembly (30), the first fastener, and the mold shell (10) are removed for recycling.

7. The construction method of a multi-ribbed floor slab using hoisting transition according to claim 6, characterized in that: In step 1, the specific steps of installing the mold shell (10) include: Installing the first mold shell (10): before installing the first mold shell (10), move the movable part (22) to a side away from the first mold shell (10); when installing the first mold shell (10), place two sides of the mold shell (10) on the main beam side mold (42); move the movable part (22) so that the rod of the movable part (22) is embedded in the hanging groove (17) of the mold shell (10); rotate the nut (24) to adjust the height of the support plate (23); at this time, the support plate (23) plays a supporting role on the side of the mold shell (10); Install the remaining formwork shells (10) of the first row: install the first row of formwork shells (10) along the length direction of the transition suspension beam (20), the installation method is the same as the installation of the first formwork shell (10), and starting from the second formwork shell (10), each time a formwork shell (10) is installed, the mating surface (15) of the newly installed formwork shell (10) and the installed formwork shell (10) are tightly attached, and the two formwork shells (10) are fastened and connected by passing the first fastener through the connection hole (16); Install the second row of formwork (10): move the movable part (22) of the second transition suspension beam (20) to the side away from the second row of formwork (10), tilt the formwork (10) from bottom to top, place one side of the formwork (10) on the support plate (23) of the first transition suspension beam (20), align the hanging groove (17) of the second row of formwork (10) with the hanging groove (17) of the first row of formwork (10), then lift the other side of the second row of formwork (10) until it is horizontal, move the movable part (22) of the second transition suspension beam (20), and make the rod of the movable part (22) embedded in the hanging groove of the second row of formwork (10). The second transition suspension beam (20) is installed in the groove (17), and at this time, the support plate (23) of the second transition suspension beam (20) plays a supporting role for the second row of mold shells (10); in this process, each time a mold shell (10) is installed, the contact surface (15) of the newly installed mold shell (10) and the installed mold shell (10) are pressed tightly, and the two mold shells (10) are fastened and connected by passing the first fastener through the connecting hole (16), the lifting grooves (17) of the first row of mold shells (10) and the second row of mold shells (10) are combined into a lifting hole, the rod of the movable part (22) passes through the lifting hole, and the support plate (23) plays a supporting role for the two rows of mold shells (10) at the same time; Install the remaining mold shells (10): The installation method is the same as that of the second row of mold shells (10) until all the mold shells (10) are installed.

8. The construction method of a multi-ribbed floor slab using hoisting transition according to claim 6, characterized in that: The support plate (23) is rectangular. Before installing the mold shell (10), the support plate (23) is rotated so that the long side of the support plate (23) faces the mold shell (10) to be installed. After installing the mold shell (10), the support plate (23) is rotated so that the short side of the support plate (23) faces the installed mold shell (10), so as to reduce the interference of the support plate (23) with the installation of the mold shell (10).

9. The construction method of a multi-ribbed floor slab using hoisting transition according to claim 6, characterized in that: When the support assembly (30) is installed, the outermost vertical pole (31) and the main beam scaffold (43) are connected as a whole through the cross bar (32).

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