Ribbed floor forming structure with high assembly rate

Abstract

The utility model relates to the technical field of building formworks, in particular to a high-assembly-rate ribbed floor slab forming structure which comprises a plurality of formwork shells and steel bar suspension beams, and each formwork shell is provided with a connecting hole and a hoisting groove. The steel bar suspension beam comprises a supporting portion used for supporting, a steel bar truss formed by welding steel bars, a movable piece capable of moving, a second fastening piece connected to the bottom of the movable piece in a threaded mode and a supporting plate arranged on the second fastening piece in a sleeved mode. And the steel bar suspension beam is used as a hoisting tool of the formwork and also used as a steel bar of the dense rib floor system, so that the assembly rate is improved, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building templates, in particular to a multi-ribbed floor slab forming structure with a high assembly rate. Background Art

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

[0003] Our company has previously applied for an assembled multi-ribbed floor formwork and a multi-ribbed floor construction method, which uses assembly technology. In this method, the edge of the membrane shell is supported by steel trusses and a "J"-shaped floor decking. The floor decking is removable and reused, but the floor decking and back reinforcements themselves require material costs, so there is still room for cost optimization. For this reason, there is an urgent need for a multi-ribbed floor forming structure and construction method that does not require floor decking, has a lower cost, and has a high assembly rate. Utility Model Content

[0004] The problem solved by the present invention is that in the prior art, when installing the multi-ribbed floor formwork, an "X"-shaped floor decking plate is required, and there is still room for cost optimization. The present invention provides a multi-ribbed floor forming structure with lower cost and higher assembly rate.

[0005] The utility model is realized through the following technical solutions: a multi-ribbed floor forming structure with a high assembly rate, comprising a plurality of formworks and steel suspension beams,

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

[0007] Two, three or four adjacent fitting surfaces of the flange are provided with connecting holes, which are arranged horizontally and 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] Several formworks are arranged in an array, and the upper and lower surfaces of all formworks are coplanar. The fitting surfaces of any two adjacent formworks fit together. The adjacent formworks are connected by first fasteners passing through the connecting holes. The hanging grooves on the adjacent formworks are symmetrical along the fitting surfaces. Two or four hanging grooves can be combined to form a hanging hole that passes through the upper and lower surfaces of the flange edge. The hanging hole is located on the longitudinal fitting surfaces or the transverse fitting surfaces of all the formworks.

[0010] The steel bar suspension beam includes a supporting portion for supporting, a steel bar truss formed by welding steel bars, a movable movable part, a second fastener threadedly connected to the bottom of the movable part, and a support plate sleeved on the second fastener.

[0011] In the formwork array, both sides of each row of formwork are supported by the main beam side formwork or the steel suspension beam. Each steel suspension beam simultaneously supports the flange edges of the two rows of formwork in the formwork array. The movable parts and the upper surface of the flange edges are abutted against each other. The fasteners pass through the support plate and the lifting holes and are threadedly connected to the movable parts. The support plate simultaneously supports the flange edges of the two rows of formwork.

[0012] Furthermore, the movable part includes an upper connecting rod and a threaded connecting part. The upper connecting rod is movably arranged below the steel frame. The bottom end of the upper connecting rod is provided with an external thread, and the threaded connecting part is provided with a through internal thread. The upper connecting rod and the threaded connecting part are threadedly engaged.

[0013] Furthermore, a ring-shaped member is fixedly provided on the top of the upper connecting rod, and a plurality of cross bars are provided on the bottom of the steel bar truss, and the ring-shaped member is sleeved on the cross bars.

[0014] Furthermore, the support plate is rectangular.

[0015] Furthermore, a support member is provided at the bottom of the formwork array.

[0016] Another aspect of the present invention provides a construction method for a multi-ribbed floor slab with a high assembly rate, comprising:

[0017] Preparation before construction: Complete the prefabrication of formwork and steel suspension beam fasteners according to construction requirements. Set up the main beam side formwork according to the drawings to determine the installation height of the bottom surface of the multi-ribbed floor slab;

[0018] Construction process: First install multiple sets of steel suspension beams, start from one corner of the main beam around the perimeter and set up the formwork along one side of the main beam in sequence, then set up the remaining formwork along the established formwork in sequence until all formwork installation is completed. The detailed steps are as follows:

[0019] Step 1: Install the suspension beam. Set up the steel suspension beam at a fixed point according to the drawing requirements, and place the support part on the main beam template;

[0020] Step 2: Install the formwork. Start from one corner of the main beams around the periphery and erect the formwork along one side of the main beam in sequence. Subsequently, erect the remaining formwork along the erected formwork in sequence until all the formwork is installed. Adjacent formworks are fastened together by first fasteners passing through the connecting holes. Two or four lifting slots are combined into one lifting hole. The rod of the second fastener is located in the lifting hole. Tighten the second fastener. The flange edge of the formwork and the movable part are against each other to form an upper limit. Each support plate supports two or four formworks at the same time.

[0021] Step 3: Tie the steel bars, including the ribbed floor steel bars perpendicular to the steel suspension beams and the surface bars above the formwork, to connect the steel suspension beams and the main beams;

[0022] Step 4: pouring concrete and curing;

[0023] Step 5: After curing and forming, remove the second fastener, the support plate, the first fastener, and the mold shell for repeated use.

[0024] Furthermore, in step 2, the specific steps of installing the formwork include:

[0025] Install the first formwork: Before installing the first formwork, move the movable part to the side away from the first formwork. When installing the first formwork, place the two sides of the formwork on the main beam side formwork, move the movable part so that the second fastener is embedded in the hoisting groove of the formwork, and slightly tighten the second fastener so that the flange edge of the formwork and the movable part are against each other to form the upper limit. At this time, the support plate supports the edge of the formwork;

[0026] Install the remaining formwork in the first row: Install the first row of formwork along the length of the steel 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 installed formwork, and the two formworks are fastened together by fasteners passing through the connection holes.

[0027] Install the second row of formwork: Move the movable part of the second steel suspension beam to the side away from the second row of formwork, move the formwork tilted from bottom to top, place one side of the formwork on the support plate of the first steel suspension beam, align the lifting groove of the second row of formwork with the lifting groove 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 steel suspension beam, embed the second fastener into the lifting groove of the second row of formwork, slightly tighten the second fastener of the second steel suspension beam, and make the upper surface of the formwork flange The second fastener of the first steel bar suspension beam is tightened; during this process, 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 two formworks are fastened together by the fastener passing through the connecting hole. The lifting grooves of the first and second rows of formworks are combined into one lifting hole, and the second fastener passes through the lifting hole. The support plate supports the two rows of formworks at the same time.

[0028] Install the remaining formwork: The installation method is the same as that of the second row of formwork until all formwork is installed.

[0029] 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.

[0030] Furthermore, the movable part includes an upper connecting rod and a threaded connecting part. The upper connecting rod is movably arranged under the steel frame. The bottom end of the upper connecting rod is provided with an external thread, and the threaded connecting part is provided with a through internal thread. The upper connecting rod and the threaded connecting part are threadedly engaged and connected. After removing the formwork, the threaded connecting part is rotated by a tool, the threaded connecting part is removed, and it is reused in a turnover manner, and the pits in the concrete protective layer are filled, thereby improving the material turnover rate and reducing costs.

[0031] Furthermore, after the formwork is installed, a support member is provided at the bottom of the formwork array, and the support member is used to support the edges or corners of some of the formwork.

[0032] The beneficial effects of the utility model are:

[0033] 1. The utility model eliminates the floor decking and directly realizes the hoisting under the steel truss through the movable parts, the supporting plate and the second fastener. There is no need for the floor decking, which reduces the use of materials and reduces the cost.

[0034] 2. The steel suspension beam of the present invention is prefabricated in the factory and can be directly installed after being transported to the construction site. The steel trusses and supporting parts are directly used as the steel bars of the multi-ribbed floor slab during the construction process. After the formwork is installed, other steel bars are tied, including the multi-ribbed floor slab steel bars perpendicular to the steel suspension beam and the surface bars above the formwork. The steel suspension beam and the main beam steel bars are connected, and then the concrete can be poured. The steel suspension beam is used as a lifting tool for the formwork and also as the steel bar of the multi-ribbed floor slab, which improves the assembly rate and construction efficiency.

[0035] 3. The formwork flanges used in this invention are equipped with lifting slots. The lifting slots of two or four formworks can be combined to form a lifting hole. During installation, the second fastener is simply inserted into the lifting slot, eliminating the need for drilling holes and improving installation efficiency. Furthermore, two formworks share a single lifting hole, reducing the number of holes required on the formwork.

[0036] 4. The movable part of the steel 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 interference of the support plate below with the installation of the formwork.

[0037] 5. The movable parts of the utility model include an upper connecting rod and a threaded connector. The upper connecting rod and the threaded connector are threadedly engaged. Therefore, after removing the formwork, the threaded connector can be rotated with a tool, removed and reused, and the pits in the concrete protective layer can be filled, thereby improving the material turnover rate and reducing costs.

[0038] 6. The utility model can set additional support members at the bottom of part of the formwork after the formwork is installed, which can reduce the load of the steel suspension beam, reduce the specifications of the steel suspension beam, and reduce costs.

[0039] 7. The construction of this utility model is very convenient. There is no need for a full-floor scaffolding. Workers can stand on a self-propelled hydraulic lift to carry out installation work, which can improve the installation efficiency of the installers. There is no need to climb scaffolding, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0041] Figure 2 This is a bottom-up three-dimensional view of the formwork in Example 1;

[0042] Figure 3 This is a structural diagram of a steel bar suspension beam according to an embodiment;

[0043] Figure 4 for Figure 3 A partial enlarged view of the

[0044] Figure 5 is a cross-sectional view of the movable member, the supporting plate, and the second fastening member in the first embodiment;

[0045] Figure 6 This is a schematic structural diagram of the mold shell in Example 2;

[0046] Figure 7 It is a cross-sectional view of the movable member, the supporting plate, and the second fastening member in the third embodiment;

[0047] Figure 8 This is a schematic diagram of the main beam formwork, main beam side formwork, and main beam scaffolding in Example 4;

[0048] Figure 9 This is a schematic diagram of the steel bar suspension beam after installation in the fourth embodiment;

[0049] Figure 10 This is a schematic diagram of the first mold shell installed in Example 4;

[0050] Figure 11 for Figure 10 A partial enlarged view of

[0051] Figure 12 This is a schematic diagram of the first row of formwork installed in Example 4;

[0052] Figure 13 This is a schematic diagram of the fourth embodiment after all the formwork has been installed;

[0053] Figure 14 Schematic diagram of the process of installing the second row of formwork in Example 4 (tilted view from bottom to top);

[0054] Figure 15 This is a process diagram for installing the mold shell in Example 4.

[0055] In the picture:

[0056] 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 slot;

[0057] 20 steel bar suspension beam; 21 steel bar truss; 22 movable member; 221 upper connecting rod; 222 threaded connector; 223 ring member; 23 support plate; 24 second fastener; 25 support portion;

[0058] 41 main beam formwork; 42 main beam side formwork; 43 main beam scaffolding;

[0059] 5. Self-propelled lifting hydraulic vehicle. DETAILED DESCRIPTION

[0060] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention. Example

[0061] A high-assembly-rate ribbed floor forming structure includes a plurality of formworks 10 and steel suspension beams 20.

[0062] 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 downward 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. 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 rectangular, 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.

[0063] The four fitting surfaces 15 in the flange edge 14 are all provided with connecting holes 16. 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.

[0064] The two symmetrical fitting surfaces 15 in the flange edge 14 are provided with lifting grooves 17. The lifting grooves 17 are located on the fitting surface 15 and pass through the upper and lower surfaces of the flange edge 14. The lifting grooves 17 and the connecting holes 16 do not interfere with each other. The cross-section of the lifting grooves 17 is semicircular. The fitting surface 15 where the lifting grooves 17 are located is provided with three lifting grooves 17. The lifting grooves 17 are symmetrically arranged along the length direction of the fitting surface 15.

[0065] like Figure 13 As shown, there are 36 mold shells 10, which are arranged in a 6×6 array. The flange edge 14 of a single mold shell 10 is 1200 mm wide. The upper and lower surfaces of all mold shells 10 are coplanar. The fitting surfaces 15 of any two adjacent mold shells 10 fit together. Adjacent mold shells 10 are connected by first fasteners passing through the connecting holes 16. The lifting grooves 17 on adjacent mold shells 10 are symmetrical along the fitting surfaces 15. 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 two-phase longitudinal fitting surfaces 15 of all mold shells 10. There are 18 lifting holes in each row, and a total of 5 rows.

[0066] like Figure 13 As shown, there are 5 sets of steel bar suspension beams 20, such as Figure 3-5As shown, the steel suspension beam 20 includes a support portion 25, a steel truss 21, a movable part 22, a second fastener 24, and a support plate 23. The steel truss 21 includes an upper chord steel bar, a lower chord steel bar, a web steel bar, a transverse steel bar, etc., which are welded together. The width and height of the steel truss 21 are determined by the design requirements of the ribbed floor slab, and its cross-section can be trapezoidal, rectangular, etc. The length of the steel truss 21 is 7500mm, which is slightly larger than the width of the formwork 10 array 7200 and slightly larger than the width of the floor slab. Support portions 25 are provided at both ends of the steel truss 21. The support portions 25 are also welded with steel bars, and their height is determined according to the design requirements. During operation, the support portions 25 at both ends are placed on the main beam formwork 41 to ensure that the steel truss 21 does not move or overturn.

[0067] The movable part 22 is movably arranged at the bottom of the steel truss 21 and can at least move horizontally in a direction perpendicular to the length of the steel truss 21. The horizontal movement is for the convenience of installation to avoid interference of the support plate 23 below with the installation of the formwork 10. The movable part 22 is provided with an internal thread; when working, the movable part 22 and the upper surface of the flange edge 14 of the formwork 10 are abutted against each other to form an upper limit position for the formwork 10.

[0068] The support plate 23 is rectangular, 200 mm long and 100 mm wide, with a through hole in the middle. When in operation, the support plate 23 can simultaneously support the flange edges 14 of two mold shells 10, with a support area of at least 100 mm x 100 mm.

[0069] The second fastener 24 is a bolt and a gasket. The bolt passes through the gasket and the through hole of the supporting plate 23 and is threadedly connected to the movable part 22. After the concrete curing is completed, the fastener and the supporting plate 23 can be disassembled and reused.

[0070] There are 18 groups of movable parts 22 , fasteners and supporting plates 23 on each set of steel bar suspension beams 20 , which are arranged at intervals along the length direction of the steel bar truss 21 .

[0071] like Figure 13 and 14 As shown, in the formwork 10 array, both sides of each row of formwork 10 are supported by the main beam side formwork 42 or the steel suspension beam 20. Each steel suspension beam 20 simultaneously supports the flange edges 14 of two rows of formwork 10 in the formwork 10 array. The movable part 22 and the upper surface of the flange edge 14 are abutted against each other. The fasteners pass through the support plate 23 and the lifting hole and are threadedly connected to the movable part 22. The support plate 23 supports the flange edges 14 of the two rows of formwork 10 at the same time.

[0072] In this solution, the floor deck is eliminated, and the formwork 10 is hoisted by means of a steel suspension beam 20, which reduces the use of materials and reduces costs. The steel suspension beam 20 is prefabricated in the factory and can be directly installed after being transported to the construction site. The steel trusses 21 and the support parts 25 are directly used as reinforcements for the multi-ribbed floor during construction, which increases the assembly rate and construction efficiency. A hoisting groove 17 is provided on the flange 14 of the formwork 10. The hoisting grooves 17 of two or four formworks 10 can be assembled into a hoisting hole. During installation, the second fastener 24 can be embedded in the hoisting groove 17 without the need for perforation installation, which improves installation efficiency. In addition, the two formworks 10 share one hoisting hole, which reduces the number of holes on the formwork 10. The support plate 23 and the second fastener 24 can be disassembled and reused, which increases the material turnover rate and reduces costs. The steel suspension beam serves as both a hoisting tool for the formwork and as reinforcement for the multi-ribbed floor, which increases the assembly rate and construction efficiency. Example

[0073] like Figure 6 As shown, the difference from Example 1 is that there are three lifting grooves 17 on each fitting surface 15, one of which is located in the middle of the fitting surface 15, and the cross-section of the lifting groove 17 there is a semicircular, and the other two lifting grooves 17 are located at the edge of the fitting surface 15, that is, at the four corners of the formwork 10, and the cross-section of the lifting groove 17 there is a quarter circle. The middle lifting groove 17 can be assembled with the lifting groove 17 of another formwork 10 to form a lifting hole, and the lifting groove 17 on the corner can be assembled with the lifting grooves 17 of the other three formworks 10 to form a lifting hole. The steel suspension beam 20 used only needs to modify the position of the movable parts 22, fasteners, and support plates 23. The scheme can also realize the lifting of the formwork 10, and some support plates 23 can support the corner positions of the four formworks 10 at the same time. Example

[0074] like Figure 7 As shown, the difference from Example 1 is that the movable part 22 includes an upper connecting rod 221 and a threaded connector 222. The upper connecting rod 221 is movably arranged below the steel reinforcement frame. The bottom end of the upper connecting rod 221 is provided with an external thread, and the threaded connector 222 is provided with a through internal thread. The upper connecting rod 221 and the threaded connector 222 are threadedly engaged. Therefore, after removing the formwork 10, the threaded connector 222 can be rotated with a tool, removed and reused, and the pits in the concrete protective layer can be filled, thereby improving the material turnover rate and reducing costs. A ring member 223 is fixedly provided on the top of the upper connecting rod 221, and a number of cross bars are provided at the bottom of the steel reinforcement truss 21. The ring member 223 is sleeved on the cross bar. A certain gap can be set between the ring member 223 and the cross bar to improve fault tolerance.

[0075] 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.

[0076] In other embodiments, support members are provided at the bottom of the formwork 10 array. After the formwork 10 is installed, additional support members are provided at the bottom of some of the formwork 10 to reduce the load on the steel suspension beams 20, reduce the specifications of the steel suspension beams 20, and reduce costs.

[0077] 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 in a direction perpendicular to the length of the steel truss 21. Example

[0078] Another aspect of the present invention provides a method for constructing a multi-ribbed floor with a high assembly rate, such as Figure 8-15 As shown, the structure of the formwork 10 and the steel suspension beam 20 in the first embodiment is adopted, and the construction method includes:

[0079] Preparation before construction: Complete the prefabrication of the formwork 10 and the fasteners of the steel suspension beam 20 according to the construction requirements. Set up the main beam side formwork 42 according to the drawings to determine the installation height of the bottom surface of the ribbed floor, such as Figure 8 As shown, the main beam scaffolding 43, main beam formwork 41, and main beam side formwork 42 of the surrounding main beams have been erected;

[0080] Construction process: First install multiple sets of steel suspension beams 20, and then set up formwork 10 along one side of the main beam starting from one corner of the main beam. Then, set up the remaining formwork 10 along the set formwork 10 until all formwork 10 are installed. The detailed steps are as follows:

[0081] Step 1: Install the suspension beam. Set up the steel suspension beam 20 at a fixed point according to the drawing requirements. Place the support part 25 on the main beam template 41. Figure 9 As shown, there are five steel suspension beams 20, which are hoisted onto the wooden beam formwork by a tower crane or other hoisting tools, arranged in parallel, and positioned on site;

[0082] Step 2: Install the mold shell 10, as shown in Figure 10-14As 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 already erected formwork 10 until all formwork 10 are installed. Adjacent formwork 10 are fastened together by first fasteners penetrating the connection holes 16. The two lifting grooves 17 are combined into one lifting hole. The rod of the second fastener 24 is located in the lifting hole. The second fastener 24 is tightened. The flange edge 14 of the formwork 10 and the movable part 22 are abutted against each other to form an upper limit. Each support plate 23 supports the two formworks 10 at the same time.

[0083] Step 3: Tie the steel bars, including the ribbed floor steel bars perpendicular to the steel suspension beam 20 and the surface bars above the formwork 10, to connect the steel suspension beam 20 and the main beam steel bars. The steel bar tying step is a conventional construction method and is not shown in the figure.

[0084] Step 4: pouring concrete and curing;

[0085] Step 5: After curing and molding, the second fastener 24, the support plate 23, the first fastener, and the mold shell 10 are removed and reused.

[0086] In this method, the floor deck is eliminated, and the lifting is achieved directly under the steel truss 21 through the movable part 22, the support plate 23, and the second fastener 24. No floor deck is required, the use of materials is reduced, and the cost is reduced. The steel suspension beam 20 is prefabricated in the factory and can be directly installed after being transported to the construction site. The steel truss 21 and the support part 25 are directly used as the steel bars of the multi-ribbed floor during the construction process. After the formwork 10 is installed, other steel bars are tied, including the multi-ribbed floor steel bars perpendicular to the steel suspension beam 20 and the surface bars above the formwork 10. The steel suspension beam 20 is connected to the steel bars of the main beam, and then the concrete can be poured. The steel suspension beam 20 is used as a lifting tool for the formwork 10 and also as the steel bar of the multi-ribbed floor, which improves the assembly rate and construction efficiency.

[0087] In practical applications, the specific steps of installing the formwork 10 include:

[0088] Install the first mold shell 10: Before installing the first mold shell 10, move the movable part 22 to the 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 embed the second fastener 24 into the lifting groove 17 of the mold shell 10. Slightly tighten the second fastener 24 to make the flange edge 14 of the mold shell 10 and the movable part 22 abut against each other to form an upper limit. At this time, the support plate 23 supports the edge of the mold shell 10. Figure 10-11 As shown, the first mold shell 10 is installed;

[0089] Install the remaining formwork 10 in the first row: Install the first row of formwork 10 along the length direction of the steel suspension beam 20. The installation method is the same as that of the first formwork 10. Starting from the second formwork 10, each time a formwork 10 is installed, the newly installed formwork 10 is tightly attached to the fitting surface 15 of the installed formwork 10, and the two formworks 10 are fastened together by fasteners passing through the connecting holes 16; Figure 12 As shown, the first row of formwork 10 is installed;

[0090] Install the second row of formwork 10: Figure 15 As shown, from top to bottom, this is the installation process of the second row of formwork 10. Move the movable part 22 of the second steel 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 steel 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 steel suspension beam 20 so that the second fastener 24 is embedded in the lifting groove 17 of the second row of formwork 10, and slightly tighten the second fastener 24 of the second steel suspension beam 20 so that the upper surface of the flange edge 14 of the formwork 10 and The lower surfaces of the movable parts 22 are pressed against each other to form a positioning, and at this time the support plate 23 of the second steel suspension beam 20 supports the second row of formwork 10; tighten the second fastener 24 of the first steel suspension beam 20; 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, and the two formworks 10 are fastened together by passing the fastener through the connecting hole 16, the lifting grooves 17 of the first row of formwork 10 and the second row of formwork 10 are spliced into a lifting hole, the second fastener 24 passes through the lifting hole, and the support plate 23 supports the two rows of formwork 10 at the same time.

[0091] 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. Figure 13 As shown, all the mold shells 10 are successfully installed.

[0092] In this solution, formwork 10 is sequentially erected along one side of the main beam starting from one corner of the surrounding main beams. The remaining formwork 10 is then sequentially erected along the already erected formwork 10 until all formwork 10 are installed. Each time a formwork 10 is installed, the mating surface 15 of the newly installed formwork 10 is pressed against the already installed formwork 10, and the two formworks 10 are fastened together by fasteners penetrating the connection holes 16. Tightening the installed formwork 10 in a timely manner can improve installation accuracy and avoid the cumulative error that causes misalignment of the subsequent hoisting slots 17 and second fasteners 24 of the formwork 10. The movable part 22 of the steel 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 to avoid interference with the installation of the formwork 10 by the support plate 23 below.

[0093] In practical applications, in step five, the threaded connector 222 can also be removed, and the movable member 22 can adopt the structure of embodiment three, such as Figure 7 As shown, the movable member 22 includes an upper connecting rod 221 and a threaded connector 222. The upper connecting rod 221 is movably arranged below the steel frame. The bottom end of the upper connecting rod 221 is provided with an external thread, and the threaded connector 222 is provided with a through internal thread. The upper connecting rod 221 and the threaded connector 222 are threadedly engaged. Therefore, after the formwork 10 is removed, the threaded connector 222 can be rotated with a tool, removed, and reused to fill the pits in the concrete cover, thereby improving material turnover and reducing costs.

[0094] In practical applications, the support plate 23 is rectangular. Before installing the formwork 10, the support plate 23 is rotated so that the long side of the support plate 23 is facing the formwork 10 to be installed. After installing the formwork 10, the support plate 23 is rotated so that the short side of the support plate 23 is facing the installed formwork 10, so as to reduce the interference of the support plate 23 on the installation of the formwork 10. Figure 15 As shown, before and after installation, the support plate 23 is rotated to reduce interference.

[0095] In actual applications, after the formwork 10 is installed, additional supports are installed at the bottom of some of the formwork 10 to reduce the load on the steel suspension beams 20, reduce the specifications of the steel suspension beams 20, and reduce costs. Generally, when the span of the multi-ribbed floor is small, no additional supports are required. When the span of the multi-ribbed floor is large, the material selection of the steel suspension beams 20 can be increased, thicker steel bars can be selected, and the number of steel bars can be increased to meet the load requirements after pouring concrete. Alternatively, additional supports can be installed, and cross braces and diagonal braces can be installed according to actual needs to reduce the load on the steel suspension beams 20 and save costs. The supports can be customized columns or scaffolding, with top supports set on the top of the scaffolding to provide local support for the edges or corners of the formwork 10.

[0096] In actual application, the construction of the utility model is very convenient, and there is no need for a full-floor scaffolding. Workers can stand on the self-propelled hydraulic lift vehicle 5 to carry out installation work, which can improve the installation efficiency of the installers and is safer without climbing scaffolding.

[0097] To sum up, the high-assembly-rate multi-ribbed floor forming structure and construction method described in the present invention eliminates the floor decking, reduces the use of materials, and lowers costs. The steel suspension beam 20 is used not only as a lifting tool for the formwork 10, but also as a steel bar for the multi-ribbed floor, thereby improving the assembly rate and construction efficiency.

[0098] 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 embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable those familiar with the art to understand and implement the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit and substance of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A ribbed floor forming structure with a high assembly rate, characterized by: It includes several formworks (10) and steel suspension beams (20). The mold shell (10) includes a mold shell top surface (11), and the mold shell top surface (11) is connected to a mold shell side surface (12) extending downward around the mold shell top surface (11). The mold shell top surface (11) and the mold shell side surface (12) enclosed therewith form a cavity (13). 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 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 positions on the fitting surface (15) where the hanging groove (17) can be provided include the middle and the 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 together, the adjacent mold shells (10) are connected by a first fastener penetrating the connection hole (16), the hanging grooves (17) on the adjacent mold shells (10) are symmetrical along the fitting surface (15), two or four 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 together. The steel bar suspension beam (20) includes a supporting portion (25) for supporting, a steel bar truss (21) formed by welding steel bars, a movable movable member (22), a second fastener (24) threadedly connected to the bottom of the movable member (22), and a support plate (23) sleeved on the second fastener (24). In the formwork (10) array, both sides of each row of formwork (10) are supported by the main beam side formwork (42) or the steel suspension beam (20), and each steel suspension beam (20) simultaneously supports the flange edges (14) of the two rows of formwork (10) in the formwork (10) array, the movable part (22) and the upper surface of the flange edge (14) are abutted against each other, and the fasteners pass through the support plate (23) and the lifting hole and are threadedly connected to the movable part (22), and the support plate (23) simultaneously supports the flange edges (14) of the two rows of formwork (10).

2. The high-assembly-rate ribbed floor forming structure according to claim 1, characterized in that: The movable member (22) comprises an upper connecting rod (221) and a threaded connecting member (222); the upper connecting rod (221) is movably arranged below the steel frame; the bottom end of the upper connecting rod (221) is provided with an external thread; the threaded connecting member (222) is provided with a through internal thread; the upper connecting rod (221) and the threaded connecting member (222) are threadedly engaged with each other.

3. The high-assembly-rate ribbed floor forming structure according to claim 2, characterized in that: A ring member (223) is fixedly provided on the top of the upper connecting rod (221), and a plurality of cross bars are provided on the bottom of the steel bar truss (21), and the ring member (223) is sleeved on the cross bars.

4. The high-assembly-rate ribbed floor forming structure according to claim 1, characterized in that: The supporting plate (23) is rectangular.

5. The high-assembly-rate ribbed floor forming structure according to claim 1, characterized in that: A support member is provided at the bottom of the mold shell (10) array.

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