Ribbed floor forming formwork suitable for hoisting working condition and formwork assembly

Abstract

The utility model relates to the technical field of building formworks, in particular to a multi-ribbed floor system forming formwork and a formwork assembly suitable for the hoisting working condition. Comprising a horizontal formwork top face and a formwork side face, a rectangular flange is arranged on the lower edge of the formwork side face, a binding face is arranged on the outer edge of the flange, a connecting hole is formed in the binding face, the connecting hole is horizontally formed and penetrates from a cavity to the binding face and is perpendicular to the binding face, and a hoisting groove is formed in the binding face and located in the binding face. During installation, a fastener penetrates through the connecting holes of the two mold shells at the same time to keep the two adjacent mold shells tightly connected, it is guaranteed that no gap exists between the mold shells, the two hoisting grooves can be spliced into one hoisting hole, a hoisting tool can conveniently penetrate through the circular hole from top to bottom, hoisting operation is achieved, and the hoisting efficiency is improved. Holes formed in the formwork are reduced, slurry leakage is avoided, the operation step of blocking is reduced, and the flatness of a dense rib floor system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building templates, in particular to a ribbed floor slab forming formwork and a formwork assembly suitable for hoisting working conditions. Background Art

[0002] The multi-ribbed floor formwork is a formwork used in construction projects. It is mainly used for the construction of cast-in-place concrete two-way multi-ribbed floor slabs (floor slabs). It is suitable for the construction of large spans and large load spaces, such as underground garages, large shopping malls, multi-story factories, teaching buildings, civil air defense projects, etc.

[0003] In the existing technology, the formwork is completely erected on all four sides on wooden formwork or other rigid supports. Our company has previously applied for an assembled multi-ribbed floor formwork and a multi-ribbed floor construction method, which adopts assembly technology. In this method, the edge of the membrane shell is supported by a J-shaped floor decking. The floor decking is detachable and reused, but the floor decking and back reinforcement ribs themselves require material costs, so there is still room for cost optimization. For this reason, our company has developed a multi-ribbed floor construction method with a high assembly rate, but the existing technology lacks a corresponding formwork that is easy to lift. Utility Model Content

[0004] The problem solved by the utility model is that the prior art lacks a corresponding formwork that is convenient for hoisting, and provides a ribbed floor slab forming formwork and a formwork assembly that are suitable for hoisting working conditions.

[0005] The utility model is realized by the following technical solution: a ribbed floor slab forming formwork suitable for hoisting working conditions, comprising a formwork top surface, a circle of which is connected to a downwardly extending formwork side surface around the formwork top surface, a cavity is formed inside the formwork top surface and the formwork side surface enclosed therewith, the lower edge of the formwork side surface continues to extend horizontally outward to form a flange edge, the outer contour of the 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 serves as a fitting surface for the formworks to abut against each other.

[0006] 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.

[0007] 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, and the hanging groove and the connecting hole are staggered.

[0008] Furthermore, the number of the connecting holes on a single bonding surface is one or more. When the number of the connecting holes on a single bonding surface is one, the connecting hole is located in the middle position of the bonding surface. When the number of the connecting holes on a single bonding surface is multiple, the connecting holes are symmetrically arranged along the length direction of the bonding surface.

[0009] Furthermore, the number of the lifting grooves on a single bonding surface is one or more. When the number of the lifting grooves on a single bonding surface is one, the lifting groove is located in the middle position of the bonding surface. When the number of the lifting grooves on a single bonding surface is multiple, the lifting grooves are symmetrically arranged along the length direction of the bonding surface.

[0010] Furthermore, the positions on the fitting surface where the hanging grooves can be provided include the middle and the edges of the fitting surface.

[0011] Furthermore, the cross-section of the lifting groove is half or one-quarter of the regular pattern. When the lifting groove is located in the middle of the fitting surface, the cross-section of the lifting groove is half of the regular pattern. When the lifting groove is located at the edge of the fitting surface, that is, the lifting groove is located at the four corners of the mold shell, the cross-section of the lifting groove is one-quarter of the regular pattern.

[0012] Furthermore, the cross-section of the lifting groove is one of a semicircle, a rectangle, and a half regular polygon.

[0013] Another aspect of the present invention provides a dense-ribbed floor slab forming formwork assembly suitable for hoisting conditions, including several of the aforementioned dense-ribbed floor slab forming formwork suitable for hoisting conditions, several formworks arranged in an array, the upper and lower surfaces of all formworks being coplanar, the fitting surfaces of any two adjacent formworks fitting each other, the adjacent formworks being connected by fasteners passing through connecting holes, the lifting grooves on adjacent formworks being symmetrical along the fitting surfaces, and two or four lifting grooves being able to be combined to form a lifting hole that passes through the upper and lower surfaces of the flange edge.

[0014] Furthermore, the hanging holes are only located on all the longitudinal bonding surfaces or transverse bonding surfaces of the two phases.

[0015] Furthermore, the hoisting holes are located on all the longitudinal and transverse fitting surfaces that are fitted together, and some of the hoisting holes are provided with matching plugs.

[0016] Furthermore, the assembled formwork is divided into a first corner formwork, a second corner formwork, a first side formwork, a second side formwork, and an intermediate formwork according to the installation position;

[0017] The first corner formwork is provided with connection holes on two fitting surfaces and a lifting groove on one fitting surface;

[0018] The second corner formwork is provided with connection holes on two fitting surfaces and a lifting groove on one fitting surface;

[0019] The three fitting surfaces of the first side formwork are provided with connection holes, and one fitting surface is provided with a lifting groove;

[0020] The three fitting surfaces of the second side formwork are provided with connection holes, and the two fitting surfaces are provided with lifting grooves;

[0021] The four fitting surfaces of the middle mold shell are provided with connection holes, and the two fitting surfaces are provided with lifting grooves.

[0022] The beneficial effects of the utility model are:

[0023] 1. The flange edge of the formwork of the present invention is provided with a connection hole, and the two adjacent formworks are kept tightly connected by fasteners passing through the connection holes of the two formworks at the same time, ensuring that there is no gap between the formworks. After the concrete is grouted, the connection can be maintained tightly without leakage of gaps.

[0024] 2. A lifting groove is provided at the middle or edge of the fitting surface of the mold shell of the present invention. The lifting groove passes through the upper and lower surfaces of the flange edge. After the mold shell is assembled, two or four lifting grooves can be spliced into a lifting hole, which is convenient for lifting tools to pass through the lifting hole to realize lifting operations.

[0025] 3. Compared with the traditional formwork, the utility model does not need to lay scaffolding at the bottom when assembling the formwork, which reduces the workload.

[0026] 4. Compared with the scheme using the "J"-shaped floor decking plate, the utility model has the following advantages: after the formwork is spliced together, two or four lifting slots can be spliced into one lifting hole, without the need for floor decking plates, thus reducing the use of materials and improving the construction speed.

[0027] 5. The utility model is divided into the following types according to the installation position: the first corner formwork, the second corner formwork, the first side formwork, the second side formwork and the middle formwork. The difference lies in the different numbers of the fitting surfaces with connection holes and lifting grooves. The connection holes on the outer fitting surface of the formwork assembly can be eliminated, and the lifting holes formed by the lifting grooves can be arranged into multiple longitudinal columns. Moreover, the two formworks share one lifting hole, which reduces the number of holes on the formwork, avoids leakage, reduces the number of sealing operations, and improves the flatness of the dense-rib floor. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of the mold shell in Example 1;

[0029] Figure 2 This is a bottom-up three-dimensional view of Example 1;

[0030] Figure 3 This is a schematic structural diagram of the mold shell in Example 2;

[0031] Figure 4 This is a schematic structural diagram of the formwork in Example 3.

[0032] Figure 5 This is a schematic structural diagram of the mold shell in Example 4.

[0033] Figure 6 Schematic diagram of the formwork assembly in Example 5;

[0034] Figure 7 This is a three-dimensional bottom view of the formwork assembly in Example 5;

[0035] In the figure: 100 first corner formwork; 200 second corner formwork; 300 first side formwork; 400 second side formwork; 500 middle formwork; 1 formwork top surface; 2 formwork side surface; 3 cavity; 4 flange edge; 5 fitting surface; 6 connection hole; 7 lifting slot. DETAILED DESCRIPTION

[0036] 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.

[0037] Example 1

[0038] like Figure 1-2 As shown, a ribbed floor slab forming mold suitable for hoisting conditions includes a horizontal mold top surface 1, and the mold top surface 1 is connected to a downward extending mold side surface 2 in a circle. The mold top surface 1 and the mold side surface 2 enclosed therewith form a cavity 3. The lower edge of the mold side surface 2 continues to extend horizontally outward to form a flange edge 4. The outer contour of a circle of flange edges 4 is rectangular, and the vertical end surface of the free end of the outer edge of the flange edge 4 forms a fitting surface 5 that abuts against each other between the molds.

[0039] The four fitting surfaces 5 in the flange edge 4 are all provided with connecting holes 6. The connecting holes 6 are horizontally arranged to pass through the cavity 3 to the fitting surface 5 and are perpendicular to the fitting surface 5. Each fitting surface 5 is provided with four connecting holes 6, and the four connecting holes 6 are symmetrically arranged along the length direction of the fitting surface 5.

[0040] The two symmetrical fitting surfaces 5 in the flange edge 4 are provided with hanging grooves 7. The hanging grooves 7 are located on the fitting surface 5 and pass through the upper and lower surfaces of the flange edge 4. The hanging grooves 7 and the connecting holes 6 do not interfere with each other. The cross-section of the hanging grooves 7 is semicircular. The fitting surface 5 where the hanging grooves 7 are located is provided with three hanging grooves 7. The hanging grooves 7 are symmetrically arranged along the length direction of the fitting surface 5.

[0041] The height of the top surface 1 of the formwork, the size of the formwork, the width of the flange edge 4, and the thickness of the flange edge 4 in this embodiment are designed according to the design stress requirements. The two adjacent formworks can be kept tightly connected by fasteners passing through the connecting holes 6 of the two formworks at the same time, ensuring that there are no gaps between the formworks and no leakage during grouting. The lifting groove 7 forms a circular lifting hole when the two formworks are assembled, which is convenient for lifting tools to pass through the circular hole from top to bottom, and the flange plate is supported by the support plate to lift the formwork and realize lifting. In this solution, the lifting hole is formed by splicing the lifting grooves 7 on the two mold shells, which reduces the number of holes opened on the mold shell. If a hole is opened in the middle of the flange edge 4, then when installing the mold shell, there must be a step of passing a lifting tool through the hole. There are multiple lifting holes, and the holes are easily misaligned and inefficient. The mold shell of this solution can be pre-installed with lifting tools. The lifting tools include at least a suspension rod and a support plate. Then the mold shell is pushed from the side, and the flange edge 4 is placed on the support plate. The mold shell and another mold shell that has been hoisted are placed together. The two lifting grooves 7 are spliced into a lifting hole, which surrounds the suspension rod. Then, fasteners are passed through the connecting holes 6 of the two mold shells for tight connection. The entire installation process does not require lifting tools to pass through the holes, which improves installation efficiency.

[0042] Example 2

[0043] like Figure 3 As shown, the difference from the first embodiment is that the number of connecting holes 6 on a single fitting surface 5 is three, the cross-sectional shape of the hanging groove 7 is half a square, that is, a rectangle, and the number of the hanging grooves 7 is two.

[0044] Example 3

[0045] like Figure 4 As shown, the difference from the first embodiment is that the number of connecting holes 6 can be from one to multiple according to design requirements. In the third embodiment, the number of connecting holes 6 is two, and the number of lifting slots 7 is three.

[0046] Example 4

[0047] like Figure 5 As shown, the difference from Example 1 is that there are three lifting grooves 7 on each fitting surface 5, one of which is located in the middle of the fitting surface 5, and the cross-section of the lifting groove 7 there is a semicircular, and the other two lifting grooves 7 are located at the edge of the fitting surface 5, that is, at the four corners of the mold shell, and the cross-section of the lifting groove 7 there is a quarter circle. The middle lifting groove 7 can be assembled with the lifting groove 7 of another mold shell into a lifting hole, and the lifting groove 7 on the corner can be assembled with the lifting grooves 7 of the other three mold shells into a lifting hole. This scheme can also realize the lifting of the mold shell.

[0048] In other embodiments, the cross-section of the hanging groove 7 may also be one of half regular polygons, such as half regular hexagon, half regular octagon, etc.

[0049] Example 5

[0050] like Figure 6-7 As shown, a ribbed floor forming formwork assembly suitable for hoisting conditions, the formwork used is divided into: a first corner formwork 100, a second corner formwork 200, a first side formwork 300, a second side formwork 400, and an intermediate formwork 500 according to the installation position. The first corner formwork 100 is provided with connecting holes 6 on two fitting surfaces 5, and a hoisting groove 7 is provided on one fitting surface 5; the second corner formwork 200 is provided with connecting holes 6 on two fitting surfaces 5, and a hoisting groove 7 is provided on one fitting surface 5; the first side formwork 300 is provided with connecting holes 6 on three fitting surfaces 5, and a hoisting groove 7 is provided on one fitting surface 5; the second side formwork 400 is provided with connecting holes 6 on three fitting surfaces 5, and hoisting grooves 7 are provided on two fitting surfaces 5; the intermediate formwork 500 is provided with connecting holes 6 on four fitting surfaces 5, and hoisting grooves 7 are provided on two fitting surfaces 5.

[0051] like Figure 7 As shown, when the formwork array is arranged in 7 rows and 7 columns, there are 2 first corner formworks 100, 2 second corner formworks 200, 10 first side formworks 300, 10 second side formworks 400, and 25 middle formworks 500, and the middle formworks 500 are the formwork structure of the first embodiment.

[0052] During installation, the upper and lower surfaces of all the formworks are coplanar, and the fitting surfaces 5 of any two adjacent formworks fit together. The adjacent formworks are connected by fasteners passing through the connecting holes 6. The hanging grooves 7 on the adjacent formworks are symmetrical along the fitting surfaces 5. The two hanging grooves 7 can be combined to form a hanging hole that passes through the upper and lower surfaces of the flange edges 4. The hanging holes are only located on all the longitudinal fitting surfaces 5 that fit together. Therefore, the hanging holes are parallel and arranged in multiple rows in the longitudinal direction. A plurality of hanging beams can be used for hanging. Several hanging tools are arranged under the hanging beams. The hanging tools include at least a hanging rod and a support plate. The flange edge 4 of the formwork is placed on the support plate. The formwork clamps the hanging rod from both sides, enclosing the hanging rod in the hanging groove 7. Then, the fasteners are passed through the connecting holes 6 of the two formworks for tight connection. The entire installation process does not require hanging tools to pass through the holes, thereby improving the installation efficiency. In addition to the necessary hanging grooves 7 and connecting holes 6, this solution does not have additional hanging grooves 7 and connecting holes 6 on the four sides of the formwork array, which can ensure that the concrete surface is smooth and flat after demoulding and will not leak. It also reduces the number of sealing steps and improves the flatness of the multi-ribbed floor.

[0053] In other embodiments, the formwork array can also be entirely assembled using the intermediate formwork 500. In this case, plugs are required to temporarily block some of the lifting holes and connection holes 6 to prevent slurry leakage. Although this method is more labor-intensive than the fifth embodiment, it reduces the number of formwork types and mold costs, each having its own advantages.

[0054] In other embodiments, the lifting groove 7 on the mold shell can also be located at the edge of the fitting surface 5, that is, at the four corners of the mold shell. The cross-section of the lifting groove 7 there is a quarter circle. The lifting groove 7 on the corner can be combined with the lifting grooves 7 of the other three mold shells to form a lifting hole. This solution can also realize the lifting of the mold shell.

[0055] In summary, the ribbed floor forming formwork and formwork assembly suitable for hoisting conditions described in the present invention can realize assembled construction, and the formwork assembly can realize hoisting operations, and also reduces the number of formwork holes and improves the flatness of the ribbed floor.

[0056] 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 slab forming formwork suitable for hoisting conditions, characterized by: The mold top surface (1) is connected to a mold side surface (2) extending downward around the mold top surface (1), and a cavity (3) is formed inside the mold top surface (1) and the mold side surface (2) enclosed therewith. The lower edge of the mold side surface (2) continues to extend horizontally outward to form a flange edge (4). The outer contour of the flange edge (4) is a rectangle, and the vertical end surface of the free end of the outer edge of the flange edge (4) is a fitting surface (5) for the molds to abut against each other. Two, three or four adjacent fitting surfaces (5) in the flange edge (4) are provided with connecting holes (6), and the connecting holes (6) are arranged horizontally, passing through the cavity (3) to the fitting surface (5), and are perpendicular to the fitting surface (5). One or two symmetrical fitting surfaces (5) of the flange edge (4) are provided with a hanging groove (7), the hanging groove (7) is located on the fitting surface (5) and passes through the upper and lower surfaces of the flange edge (4), and the hanging groove (7) and the connecting hole (6) are staggered.

2. The ribbed floor slab forming formwork suitable for hoisting conditions according to claim 1, characterized in that: The number of the connecting holes (6) on a single bonding surface (5) is one or more. When the number of the connecting hole (6) on a single bonding surface (5) is one, the connecting hole (6) is located in the middle of the bonding surface (5). When the number of the connecting holes (6) on a single bonding surface (5) is multiple, the connecting holes (6) are symmetrically arranged along the length direction of the bonding surface (5).

3. The ribbed floor slab forming formwork suitable for hoisting conditions according to claim 1, characterized in that: The number of the hoisting grooves (7) on a single bonding surface (5) is one or more. When the number of the hoisting grooves (7) on a single bonding surface (5) is one, the hoisting groove (7) is located in the middle of the bonding surface (5). When the number of the hoisting grooves (7) on a single bonding surface (5) is multiple, the hoisting grooves (7) are symmetrically arranged along the length direction of the bonding surface (5).

4. The ribbed floor slab forming formwork suitable for hoisting conditions according to claim 3, characterized in that: The positions on the fitting surface (5) where the hanging grooves (7) can be arranged include the middle and edges of the fitting surface (5).

5. The ribbed floor slab forming formwork suitable for hoisting conditions according to claim 4, characterized in that: The cross section of the hanging groove (7) is half or one quarter of the regular pattern. When the hanging groove (7) is located in the middle of the fitting surface (5), the cross section of the hanging groove (7) is half of the regular pattern. When the hanging groove (7) is located at the edge of the fitting surface (5), that is, the hanging groove is located at the four corners of the formwork, the cross section of the hanging groove (7) is one quarter of the regular pattern.

6. The ribbed floor slab forming formwork suitable for hoisting conditions according to claim 5, characterized in that: The cross section of the hoisting groove (7) is one of a semicircle, a rectangle, and a half regular polygon.

7. A ribbed floor slab forming formwork assembly suitable for hoisting conditions, characterized by: The invention comprises a plurality of ribbed floor slab forming formworks suitable for hoisting conditions as described in any one of claims 1 to 6, wherein the formworks are arranged in an array, the upper and lower surfaces of all the formworks are coplanar, the fitting surfaces (5) of any two adjacent formworks fit together, the adjacent formworks are connected by fasteners passing through the connecting holes (6), the hoisting grooves (7) on the adjacent formworks are symmetrical along the fitting surfaces (5), and two or four hoisting grooves (7) can be combined to form a hoisting hole that passes through the upper and lower surfaces of the flange edge (4).

8. The ribbed floor slab forming formwork assembly suitable for hoisting conditions according to claim 7, characterized in that: The hanging holes are only located on all two-phase affixed longitudinal affixed surfaces (5) or transverse affixed surfaces (5).

9. The ribbed floor slab forming formwork assembly suitable for hoisting conditions according to claim 7, characterized in that: The hoisting holes are located on all two-phase-fitted longitudinal fitting surfaces (5) and transverse fitting surfaces (5), and some of the hoisting holes are provided with matching plugs.

10. The ribbed floor slab forming formwork assembly suitable for hoisting conditions according to claim 7, characterized in that: The formwork assembly is divided into a first corner formwork (100), a second corner formwork (200), a first side formwork (300), a second side formwork (400), and a middle formwork (500) according to the installation position; The two fitting surfaces (5) of the first corner formwork (100) are provided with connection holes (6), and one fitting surface (5) is provided with a hoisting groove (7); The second corner formwork (200) is provided with connection holes (6) on two fitting surfaces (5), and a hoisting groove (7) on one fitting surface (5); The three fitting surfaces (5) of the first side mold shell (300) are provided with connection holes (6), and one fitting surface (5) is provided with a lifting groove (7); The three fitting surfaces (5) of the second side mold shell (400) are provided with connection holes (6), and the two fitting surfaces (5) are provided with hanging grooves (7); The four fitting surfaces (5) of the intermediate mold shell (500) are provided with connection holes (6), and the two fitting surfaces (5) are provided with lifting grooves (7).

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