Top formwork supporting structure and construction method

Abstract

The invention relates to the field of top formwork supporting structures, in particular to a top formwork supporting structure and a construction method. The supporting structure is arranged on the top formwork, the supporting structure supports the top formwork, the top formwork is arranged in a pouring area between the two prefabricated slabs, and cement is poured into the pouring area between the prefabricated slabs; a thick steel bar is arranged on the supporting structure and erected on the two prefabricated slabs, a sleeve is welded to the thick steel bar, a threaded rod is arranged on the sleeve, an E-shaped clamp moving up and down is arranged on the threaded rod, arc-shaped grooves are formed in the two sides of the E-shaped clamp respectively, and a through hole is formed in the middle of the E-shaped clamp and used for allowing the threaded rod to penetrate through. And meanwhile, a nut is arranged on the screw rod. By means of the structure, grout leakage is avoided when cement is poured into the prefabricated slab, the movable space area of the lower layer is larger, meanwhile, compared with an existing long-rod supporting column, the device is lower in cost, rapid to install and quite convenient to disassemble, and meanwhile the thick steel bars on the upper portion can be poured into the interior along with the cement and do not need to be additionally recycled.

Description

Technical Field

[0001] The invention relates to the field of top formwork supporting structures, and in particular to a top formwork supporting structure and a construction method. Background Art

[0002] When installing the top plate on the construction site, prefabricated panels are usually used for capping, because the specifications of the prefabricated panels are consistent in size, the area where the roof needs to be capped is larger, and the prefabricated panels need to be directly cast with beams to ensure the stability and reliability between the prefabricated panels. The prefabricated cement panels need to be poured and installed one by one with cement between the two prefabricated panels.

[0003] Usually, a top formwork is installed at the bottom of the two prefabricated slabs that need to be poured with cement and is erected at the bottom of the space where cement needs to be poured. However, in the prior art, long rod support plates are mostly used to support the top formwork, which requires more long rod support rods to support the top formwork. Because using long rod support columns to support the top formwork is very likely to cause cement to leak from the side of the top formwork when pouring cement on the top formwork, workers will need to grind it later, which is time-consuming and labor-intensive.

[0004] Also, because the prefabricated panels on the top also need to be equipped with long-pole support columns underneath to support the top formwork, more long-pole support columns need to be installed on the lower level, which increases the installation and disassembly time of the workers. It also increases the cost of using the long-pole support columns and makes the lower level space more crowded, making it inconvenient for workers to enter to set up scaffolding and other structures.

[0005] Therefore, it is particularly important to design a top formwork support structure that is easy for workers to set up quickly, has a firm support structure, can effectively support the top formwork to reduce leakage, and at the same time increase the working space on the lower level to facilitate workers' movements. Summary of the invention

[0006] The present application provides a top formwork support structure and a construction method, which adopts the following technical solutions: A top formwork support structure, characterized in that: the support structure is arranged on the top formwork, the support structure supports the top formwork, the top formwork is arranged in the casting area between two prefabricated panels, and cement is poured into the casting area between the prefabricated panels; coarse steel bars are arranged on the support structure, the coarse steel bars are erected on the two prefabricated panels, a sleeve is welded on the coarse steel bars, a screw is arranged on the sleeve, a mountain-shaped card that can move up and down is arranged on the screw, arc-shaped grooves are arranged on both sides of the mountain-shaped card, a through hole is arranged in the middle for the screw to pass through, and a nut is arranged on the screw.

[0007] Optionally, the sleeve is cylindrical in style, an internal thread is arranged in the sleeve, and the external thread on the screw rod matches the internal thread in the sleeve.

[0008] Optionally, a plurality of holes are provided on the top template, and plastic tubes are provided on the holes. The plastic tubes can pass through the screw rods, and the sleeves on the thick steel bars are in contact with and fit the plastic tubes.

[0009] Optionally, a plurality of fixing plates are arranged at the bottom of the top template, and two metal round tubes are arranged at the bottom side of the fixing plates.

[0010] Optionally, the round tube is sleeved into the groove on the mountain-shaped clamp, and the mountain-shaped clamp is moved upward by tightening the nut to reduce the distance between the thick steel bar and the mountain-shaped clamp, thereby ensuring that the top template is clamped and fixed.

[0011] Optionally, the spacing between two prefabricated panels is 40-60 cm Optional, thick steel bars with a length of 60-80 cm.

[0012] Optionally, the top formwork can be a wooden formwork or an aluminum formwork or a steel formwork.

[0013] A top formwork support structure construction method, Step A: Pass the screw through the mountain-shaped card with the groove of the mountain-shaped card facing upwards. Set up the top formwork and pass the screw through the plastic pipe on the top formwork and the sleeve of the thick steel bar on the pouring area between the prefabricated plate, tighten and fix it. During installation, the mouth of the plastic pipe should be aligned and in contact with the sleeve; Step B: Install the two round tubes into the grooves of the mountain-shaped card, and install the fixing plate between the top template and the round tube, and tighten the nut upward to fix the top template; Step C: holes and grooves are set correspondingly on the sides of the casting area between the precast panels, and steel bars are installed in the holes and grooves of the left and right precast panels to connect the precast panels horizontally. At the same time, steel bars are set up longitudinally and the horizontal and vertical steel bars are tied and fixed to form a steel mesh; Step D: Pour cement into the pouring area of ​​the precast slab, loosen the nut after the cement is completely dry, place the mountain card downward, loosen the screw that is tightened with the sleeve, unscrew the screw and remove the top formwork, and cut off the part of the plastic pipe on the top formwork that exceeds the poured cement; Step E: Finally, pour cement into the precast slab and pour cement into the thick steel bars placed on the precast slab.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The supporting structure of the device is set to fit the top formwork closely with the prefabricated board. There will be no leakage when pouring the top formwork, and no need for workers to handle it later, which improves work efficiency.

[0015] 2. The supporting structure of the device is more compact and flexible than the long rod support used in the prior art. Thick steel bars are used as the entire supporting surface, and round tubes are set with mountain-shaped clamps to keep the top template and the prefabricated panel in stable and reliable contact. This makes it more convenient to cast and splice the two prefabricated panels. After the casting is completed, the top template can be quickly disassembled by unscrewing the screw rod. The remaining parts after removal can be reused next time. At the same time, the thick steel bars on the prefabricated panel will be poured into the cement during the subsequent casting of the entire prefabricated panel. The whole process is convenient, fast and easy.

[0016] 3. The setting of this device can make the activity space area of ​​the lower layer of the prefabricated board larger, which can facilitate the activities of workers in the lower layer. At the same time, this device has lower cost than the existing long-pole support columns, is quick to install, and is very convenient to disassemble. At the same time, the thick steel bars above can be poured inside with cement, without the need for additional recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a bottom view of the overall structure of the present invention.

[0020] Figure 3 It is the front view of the overall structure of the present invention.

[0021] Figure 4 It is the overall structural diagram of the supporting structure of the present invention.

[0022] Figure 5 It is a structural diagram of the mountain-type card and the circular tube installation of the support structure of the present invention.

[0023] Figure 6 It is a demonstration diagram of the installation of the support structure and the top template of the present invention.

[0024] In the figure: 1-thick steel bar, 2-sleeve, 3-screw, 4-mountain-shaped clamp, 5-nut, 6-round tube, 7-fixing plate, 8-top template, 9-plastic tube, 10-prefabricated plate. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. 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.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] An embodiment of the present invention provides a top template support structure.

[0029] like Figure 1-6 As shown, the attached drawings of the specification only show the supporting structure on part of the prefabricated board, a top template supporting structure, the supporting structure is arranged on the top template 8, the supporting structure supports the top template 8, the top template 8 is arranged in the pouring area between the two prefabricated boards 10, and cement is poured into the pouring area between the prefabricated boards 10; a thick steel bar 1 is arranged on the supporting structure, the thick steel bar 1 is erected on the two prefabricated boards 10, a sleeve 2 is welded on the thick steel bar 1, the sleeve 2 is cylindrical, and an internal thread is arranged in the sleeve 2, and a screw 3 is arranged on the sleeve 2, and the external thread on the screw 3 matches the internal thread in the sleeve 2. The screw 3 is screwed on the sleeve 2 through the thread, and a mountain-shaped card 4 that can move up and down is arranged on the screw 3, and arc-shaped grooves are arranged on both sides of the mountain-shaped card 4, and a through hole is arranged in the middle for the screw 3 to pass through, and a nut 5 is also arranged on the screw 3.

[0030] The connection between the prefabricated panels 10 is provided with transverse and longitudinal steel bars to strengthen the strength of the casting area between the prefabricated panels 10. At the same time, a square top template 8 is provided on the bottom side of the casting area of ​​the prefabricated panels 10. The top template 8 completely covers the casting area. The top template 8 is provided with a plurality of holes, and a plastic tube 6 is provided on the hole. The plastic tube 6 can pass through the screw 3. The sleeve 2 on the thick steel bar 1 and the plastic tube 6 are in contact with each other. During installation, a plurality of fixing plates 7 are provided at the bottom of the top template 8. Two metal round tubes 6 are provided on the bottom side of the fixing plate 7. The two round tubes 6 are sleeved into the groove on the mountain-shaped card 4. The mountain-shaped card 4 is moved upward by tightening the nut to reduce the distance between the thick steel bar 1 and the mountain-shaped card 4, thereby ensuring that the top template 8 is clamped and fixed; then cement is poured into the casting area between the prefabricated panels 10. The distance between the two prefabricated panels 10 is 40-60 cm, and the length of the thick steel bar 1 is 60-80 cm. The top formwork can be wooden formwork or aluminum formwork or steel formwork.

[0031] The construction method of the top formwork support structure is as follows: Step A: Pass the screw 3 through the mountain-shaped card 4 with the groove of the mountain-shaped card 4 facing upwards, set up the top template 8, pass the screw 3 through the sleeve 2 of the thick steel bar 1 on the casting area between the plastic pipe 9 on the top template 8 and the prefabricated board 10, and tighten and fix it. During installation, the pipe mouth of the plastic pipe 9 is aligned and contacted with the sleeve 2; Step B: Install the two round tubes 6 into the grooves of the mountain-shaped clamp 4, and install the upper fixing plate 7 between the top template 8 and the round tube 6, and tighten the nut 5 upward to fix the top template 8; Step C: holes and grooves are correspondingly arranged on the sides of the casting area between the precast panels 10, and steel bars are installed in the holes and grooves of the left and right precast panels 10 to connect the precast panels 10 horizontally, and steel bars are longitudinally arranged and the horizontal and vertical steel bars are tied and fixed to form a steel mesh; Step D: Pour cement into the pouring area of ​​the precast panel 10, loosen the nut 5 after the cement is completely dry, place the mountain clamp 4 downward, loosen the screw 3 tightened with the sleeve 2, unscrew the screw 3 to remove the top template 8, and cut off the part of the plastic pipe 9 on the top template 8 that exceeds the poured cement; Step E: Finally, pour cement on the prefabricated board 10 and pour the thick steel bars 1 placed on the prefabricated board 10 with cement.

[0032] The supporting structure of the device is used to closely fit the top formwork and the prefabricated board, so that leakage of slurry will not occur when the top formwork is poured, and workers are no longer required to handle it later, thereby improving work efficiency.

[0033] Compared with the long rod support adopted in the prior art, the supporting structure of the present invention is more compact and flexible, adopts thick steel bar 1 as the entire supporting surface, and uses mountain-shaped clamp 4 to set round tube 6 to keep the top template 8 in stable and reliable contact with the precast plate, so it is more convenient to cast and splice the two precast plates. After the casting is completed, the top template 8 can be removed by unscrewing the screw rod 3 to achieve quick disassembly, and the remaining parts after removal can be reused next time. At the same time, the thick steel bar 1 on the precast plate 10 will be poured into cement when the entire precast plate 19 is subsequently cast. The whole process is convenient, fast and easy; after the top template 8 is removed, the plastic tube 9 on the top template 8 is solidified into one body due to the contact with the cement, and the plastic tube 9 of the casting area exceeding the part is cut off.

[0034] The setting of this device can make the activity space area of ​​the lower layer of the prefabricated plate 10 larger, which can facilitate the activities of workers in the lower layer. At the same time, this device has lower cost than the existing long rod support column, and is quick to install and easy to disassemble. At the same time, the thick steel bars 1 above can be poured inside together with the cement, without the need for additional recycling.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A top formwork support structure, wherein a top formwork (8) is arranged between two prefabricated panels (10), characterized in that: A support structure is provided on the top formwork (8), the support structure supports the top formwork (8), and cement is poured onto the top formwork (8) to assemble two prefabricated panels (10); A thick steel bar (1) is arranged on the supporting structure. The thick steel bar (1) is mounted on two prefabricated plates (10). A sleeve (2) is welded on the thick steel bar (1). A screw rod (3) is arranged on the sleeve (2). A mountain-shaped clamp (4) movable up and down is arranged on the screw rod (3). Arc-shaped grooves are arranged on both sides of the mountain-shaped clamp (4). A through hole is arranged in the middle for passing the screw rod (3). A nut (5) is arranged on the screw rod (3).

2. A top formwork support structure according to claim 1, characterized in that: The sleeve (2) is cylindrical in style, an internal thread is arranged in the sleeve (2), and the external thread on the screw rod (3) matches the internal thread in the sleeve (2).

3. A top formwork support structure according to claim 1, characterized in that: A plurality of holes are arranged on the top template (8), and plastic tubes (6) are arranged on the holes. The plastic tube (6) can pass through the screw rod (3), and the sleeve (2) on the thick steel bar (1) and the plastic tube (6) are in contact with each other.

4. A top formwork support structure according to claim 1, characterized in that: A plurality of fixing plates (7) are arranged at the bottom of the top mold plate (8), and two metal circular tubes (6) are arranged on the bottom side of the fixing plates (7).

5. A top formwork support structure according to claim 1, characterized in that: The round tube (6) is sleeved into the groove on the mountain-shaped clamp (4), and the mountain-shaped clamp (4) is moved upward by tightening the nut to reduce the distance between the thick steel bar (1) and the mountain-shaped clamp (4), thereby ensuring that the top template (8) is clamped and fixed.

6. A top formwork support structure according to claim 1, characterized in that: The distance between two prefabricated panels (10) is 40-60 cm.

7. A top formwork support structure according to claim 1, characterized in that: The length of the thick steel bar (1) is 60-80 cm.

8. A top formwork support structure according to claim 1, characterized in that: The top template (8) can be a wooden template or an aluminum template or a steel template.

9. A method for constructing a top formwork support structure, used for the top formwork support structure according to any one of claims 1 to 8, wherein a top formwork (8) is arranged between two prefabricated panels (10), characterized in that: Step A: Pass the screw rod (3) through the mountain-shaped clamp (4) with the groove of the mountain-shaped clamp (4) facing upwards, set up the top template (8), pass the screw rod (3) through the sleeve (2) of the thick steel bar (1) on the pouring area between the plastic pipe (9) on the top template (8) and the prefabricated plate (10), and tighten and fix it. During installation, the pipe mouth of the plastic pipe (9) is aligned with the sleeve (2) and in contact; Step B: Install the two round tubes (6) into the grooves of the mountain-shaped clamp (4), and install the upper fixing plate (7) between the top template (8) and the round tube (6), and tighten the nut (5) upward to fix the top template (8); Step C: holes and grooves are provided on the sides of the casting area between the precast panels (10), and steel bars are installed in the holes and grooves of the left and right precast panels (10) to connect the precast panels (10) horizontally. At the same time, steel bars are installed longitudinally and the horizontal and vertical steel bars are tied and fixed to form a steel mesh; Step D: pour cement into the pouring area of ​​the precast panel (10), loosen the nut (5) after the cement is completely dry, place the mountain clamp (4) downward, loosen the screw (3) tightened with the sleeve (2), unscrew the screw (3) and remove the top template (8), and cut off the part of the plastic pipe (9) on the top template (8) that exceeds the poured cement; Step E: Finally, pour cement onto the prefabricated slab (10). The thick steel bars (1) placed on the prefabricated slab (10) are poured into the prefabricated slab (10) with cement.

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