Floor support plate for rapid construction and its forming die

Abstract

The utility model discloses a floor support plate for quick construction, including steel bar truss and concrete exempt from to tear down bottom die, the steel bar truss includes web member steel bar, and the bottom of web member steel bar is bent and forms the foot portion and is shaped in exempt from to tear down bottom die, be equipped with steel mesh in the exempt from to tear down bottom die, be equipped with horizontal steel bar in steel mesh, the both ends of horizontal steel bar can be fixed on the side mould plate of mould, make steel mesh support under the foot portion of web member steel bar bottom. The utility model is equipped with steel mesh in exempt from to tear down bottom die, be equipped with horizontal steel bar in steel mesh, utilize and fixed horizontal steel bar of side mould plate, can make steel mesh keep in predetermined position, and limit the position of web member steel bar of steel bar truss, also played the role of keeping web member steel bar in predetermined position simultaneously, improved the quality of product. The utility model still includes the forming mould of above-mentioned floor support plate.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for building floor slabs, specifically a floor deck slab for rapid construction and its forming mold. Background Technology

[0002] The formwork-free reinforced concrete truss floor deck includes a precast reinforced concrete truss and a formwork-free base, typically a concrete slab. For example, announcement number CN222822650U discloses a joint joint for a formwork-free reinforced concrete truss floor deck. The advantages of formwork-free reinforced concrete truss floor decks include a lightweight overall structure, allowing for manual handling; no complex formwork and support systems are required during construction, and formwork removal is unnecessary, making it very convenient and significantly improving construction speed. The aforementioned steel truss floor slabs are prefabricated in a factory assembly line. After concrete is poured into the mold, the mold is transported to a predetermined position via the assembly line. The steel truss is placed on the concrete surface, and a portion of the steel truss is inserted into the concrete through vibration or the application of certain pressure. After hardening, the aforementioned steel truss floor slab without the need for mold removal is formed. In order to reduce cracks on the mold without mold removal, anti-crack mesh is usually installed during the pouring of the mold without mold removal. However, the disadvantage is that vibration and pressure during the installation of the steel truss may cause the anti-crack mesh to shift or sink, resulting in the steel truss and anti-crack mesh not being placed in place. Utility Model Content

[0003] To address the above shortcomings, the purpose of this utility model is to provide a rapid construction floor deck that can limit the displacement of the anti-crack mesh. Furthermore, the purpose of this utility model is to provide a molding die for forming the aforementioned floor deck.

[0004] Therefore, this utility model provides a floor deck for rapid construction, comprising a steel truss and a concrete bottom formwork that can be removed. The steel truss includes web reinforcement bars, the bottom of which is bent to form feet and formed in the bottom formwork. The bottom formwork is provided with a steel mesh, which contains transverse reinforcement bars. The two ends of the transverse reinforcement bars can be fixed to the side templates of the mold, so that the steel mesh is supported below the feet of the web reinforcement bars.

[0005] Furthermore, the steel truss and transverse steel bars are positioned such that the transverse steel bars are supported below the bend.

[0006] Furthermore, the steel truss also includes upper reinforcing bars, lower reinforcing bars, and several groups of web reinforcing bars. Each group includes two web reinforcing bars, which are arranged in a mirror image. The two sides of the upper reinforcing bar are welded to the top of the two web reinforcing bars in the same group. The feet of the web reinforcing bars are perpendicular or nearly perpendicular to the length direction of the steel truss. The lower reinforcing bars are welded at a predetermined distance above the bend of one or two web reinforcing bars in the same group. When the feet of the web reinforcing bars are in contact with the steel mesh, at least a portion of the lower reinforcing bars is higher than the upper surface of the non-removable bottom formwork.

[0007] Furthermore, the non-removable bottom formwork is provided with a groove, and the ends of the transverse reinforcing bars are set in the groove.

[0008] Furthermore, it also includes an extended steel truss, which is set on one or both sides of the non-removable bottom formwork. One of the two web reinforcement bars of the extended steel truss is fixed in the non-removable bottom formwork, while the other extends to the outside of the non-removable bottom formwork.

[0009] Furthermore, this utility model also includes a molding die for floor decking, used to form the aforementioned floor decking for rapid construction, including a bottom mold and side molds, wherein the height of the side molds is consistent with the thickness of the bottom mold that does not need to be removed.

[0010] Furthermore, the side template is fixed with a steel bar connecting block that protrudes into the mold cavity. The steel bar connecting block is provided with a placement groove, and the transverse steel bars of the steel mesh can be inserted into the placement groove.

[0011] Furthermore, the side template includes an inner template and an outer template. The inner template is fixed with a steel bar connecting block, and the outer template is a flip-up structure. The side wall of the side template is provided with an L-shaped rotating clip that cooperates with the slot welded on the adjacent side template for fixation.

[0012] Furthermore, the side formwork can be detachably fixed with an upper support plate, which cooperates with the upper side reinforcement. The outer side of the side formwork is connected to a transverse support plate, which contacts the bottom of the outer web reinforcement.

[0013] The beneficial technical effects of this utility model are as follows:

[0014] This invention relates to a floor deck slab for rapid construction, featuring a rebar mesh within a non-removable bottom formwork. The mesh contains transverse reinforcing bars, both ends of which are fixed to the side formwork of the mold. This allows the rebar mesh to be supported below the bottom of the web reinforcement bars. The transverse reinforcing bars, fixed to the side formwork, maintain the rebar mesh in a predetermined position and restrict the position of the web reinforcement bars of the steel truss, thus improving product quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a specific embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of an L-shaped card strip and card slot;

[0017] Figure 3 This is a schematic diagram of the horizontal support plate.

[0018] Explanation of reference numerals in the attached drawings: 1. Steel truss; 101. Top reinforcement; 102. Web reinforcement; 103. Bottom reinforcement; 2. Removable bottom formwork; 201. Transverse reinforcement; 3. Bottom formwork; 4. Side formwork; 401. Inner formwork; 402. Outer formwork; 403. Clip; 404. Slot; 405. Reinforcement connector; 406. Transverse brace; 5. Top support plate. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Reference Figure 1 and Figure 2 As shown, this utility model discloses a floor deck slab for rapid construction, comprising a steel truss 1 and a concrete non-removable bottom formwork 2. The steel truss 1 includes web reinforcement bars 102, the bottom of which is bent to form feet and formed within the non-removable bottom formwork 2. The non-removable bottom formwork 2 contains a steel mesh, within which are transverse reinforcement bars 201. The two ends of the transverse reinforcement bars 201 are fixed to the side templates 4 of the mold, allowing the steel mesh to be supported below the feet of the web reinforcement bars 102. (Refer to...) Figure 1 As shown, the mold includes a bottom template 3 and side templates 4. The height of the side templates 4 is the same as the thickness of the non-removable bottom template 2, which facilitates smoothing the concrete surface after pouring. The side templates 4 include an inner template 401 and an outer template 402, which are fixed by several bolts. The inner surface of the inner template 401 is smooth, ensuring a smooth surface after the non-removable bottom template 2 is formed. A thin film can be placed on the template surface if needed. The outer template 402 is a flip-up structure. The outer template 402 and the bottom template 3 can be flipped using existing technologies such as hinges. Adjacent side templates 4 are fixed by rotating locking strips 403 and locking slots 404. (Refer to...) Figure 2As shown, an L-shaped retaining strip 403 is rotatably connected to one of the outer templates 402, while a retaining groove 404 is welded to the other adjacent outer template 402. By rotating the retaining strip 403, it is engaged into the groove 404, and the outer part of the retaining strip 403 extends to the lower part of the groove 404 for fixation. When removing the template, rotating the retaining strip 403 causes the tail of the L-shaped retaining strip 403 to face the opposite direction of the groove 404, thus unlocking it. At this time, after removing the bolts on the outer template 402 and the inner template 401, the outer template 402 can be flipped over, and then the inner template 401 can be removed to lift out the formed floor deck. Before pouring concrete, the surface of the inner template generally needs to be cleaned and dust-free, and then a release agent should be sprayed to avoid difficulties in demolding. A reinforcing bar connector 405 is fixed on the inner formwork 401. A placement groove is provided within the reinforcing bar connector 405, the position of which is actually the position of the transverse reinforcing bar 201. The position of the reinforcing bar connector 405 is determined according to the required thickness of the concrete protective layer. The positions of the reinforcing bar truss 1 and the transverse reinforcing bar 201 are set so that the transverse reinforcing bar 201 is supported below the bend. Fine sand concrete, mixed evenly according to design requirements, is injected into the mold. After leveling, the mold is transported to the designated process via an assembly line or conveyor belt. The pre-welded reinforcing bar truss 1 is placed at a predetermined position on the concrete surface, and pressure or vibration is applied. The reinforcing bar truss 1 sinks into the concrete. When the feet of the web reinforcing bars 102 contact the reinforcing mesh, at least a portion of the lower reinforcing bar 103 is above the upper surface of the non-removable bottom formwork 2. The reinforcing mesh and the transverse reinforcing bars 201 are constrained by the reinforcing bar connector 405, which simultaneously supports the reinforcing bar truss 1 and prevents it from sinking further. After the above template is removed, the rebar connecting block 405 is removed and a groove is formed in the non-removable bottom formwork 2. The end of the transverse rebar 201 is set in the groove. The transverse rebar 201 can be a threaded rebar. In the subsequent pouring of the floor slab, the rebar can be connected by a connecting pipe for joint treatment.

[0021] Reference Figure 1 and Figure 3 As shown, the steel truss 1 includes an upper steel bar 101, a lower steel bar 103, and several groups of web steel bars 102. Each group includes two web steel bars 102, which are arranged in a mirror image. The two sides of the upper steel bar 101 are welded to the top of the two web steel bars 102 in the same group. The feet of the web steel bars 102 are bent to be perpendicular or nearly perpendicular to the length direction of the steel truss 1. The lower steel bar 103 is welded at a predetermined distance above the bent portion of one or two web steel bars 102 in the same group.

[0022] In the above embodiments, for floor slabs requiring joints, an extended steel truss 1 can be installed on one or both sides of the floor slab, reducing the need for on-site steel reinforcement at the joints. The extended steel truss 1 is installed on one or both sides of the non-removable bottom formwork 2. One of the two web reinforcement bars 102 in the same group of the extended steel truss 1 is fixed in the non-removable bottom formwork 2, while the other extends to the outside of the non-removable bottom formwork 2. In this embodiment, the upper support plate 5 is detachably fixed to the upper surface of the side formwork 4. The upper support plate 5 is inverted T-shaped. When the steel truss 1 is pressed down into place, the upper end of the upper support plate 5 engages with the upper side reinforcement bar 101. The outer side of the side formwork 4 is connected to a transverse support plate 406, which contacts the bottom of the outer web reinforcement bar 102. In this embodiment, the outer formwork 402 does not use a flipping structure but is fixed to the bottom formwork 3 with bolts. During demolding, the upper support plate 5 is removed first, followed by the removal of the outer formwork 402 and the inner formwork 401.

Claims

1. A floor decking for rapid construction, comprising a steel truss and a concrete formwork that can be easily removed, wherein the steel truss includes web reinforcement bars, the bottom of which is bent to form feet and formed within the formwork, characterized in that: The non-removable bottom mold is provided with a steel mesh, and the steel mesh is provided with transverse steel bars. The two ends of the transverse steel bars can be fixed to the side template of the mold, so that the steel mesh is supported under the feet of the bottom of the web steel bars.

2. A floor decking for rapid construction according to claim 1, characterized in that: The steel truss and transverse reinforcement are positioned such that the transverse reinforcement is supported below the bend.

3. A floor decking for rapid construction according to claim 1, characterized in that: The steel truss also includes upper reinforcing bars, lower reinforcing bars, and several groups of web reinforcing bars. Each group includes two web reinforcing bars, which are arranged in a mirror image. The two sides of the upper reinforcing bar are welded to the top of the two web reinforcing bars in the same group. The feet of the web reinforcing bars are perpendicular or nearly perpendicular to the length direction of the steel truss. The lower reinforcing bars are welded at a predetermined distance above the bend of one or two web reinforcing bars in the same group. When the feet of the web reinforcing bars are in contact with the steel mesh, at least a portion of the lower reinforcing bars is higher than the upper surface of the non-removable bottom formwork.

4. A floor decking for rapid construction according to any one of claims 1 to 3, characterized in that: The non-removable bottom formwork has a groove, and the ends of the transverse reinforcing bars are placed in the groove.

5. A floor decking for rapid construction according to any one of claims 1 to 3, characterized in that: It also includes an extended steel truss, which is set on one or both sides of the non-removable bottom formwork. One of the two web steel bars of the extended steel truss is fixed in the non-removable bottom formwork, while the other extends to the outside of the non-removable bottom formwork.

6. A molding die for a floor decking, used to form the floor decking for rapid construction as described in claim 5, characterized in that: It includes a bottom template and side templates, the height of which is consistent with the thickness of the bottom template that does not need to be disassembled.

7. The forming mold for a floor decking according to claim 6, characterized in that: The side template is fixed with a steel bar connecting block that protrudes into the mold cavity. The steel bar connecting block is provided with a placement groove, and the transverse steel bars of the steel mesh can be inserted into the placement groove.

8. The forming mold for a floor decking according to claim 7, characterized in that: The side formwork includes an inner formwork and an outer formwork. The inner formwork is fixed with steel bar connecting blocks, and the outer formwork is a flip-up structure. The side wall of the side formwork is provided with an L-shaped rotating clip that cooperates with the slot welded on the adjacent side formwork for fixation.

9. A forming mold for a floor decking according to claim 6 or 7, characterized in that: The side formwork can be detachably fixed with the upper support plate, which cooperates with the upper side reinforcement. The outer side of the side formwork is connected to the transverse support plate, which contacts the bottom of the outer web reinforcement.

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