Formwork supporting device for synchronous pouring of structural floating plate and floor slab
Through the formwork support device that synchronously pours the structural floating plate and the floor slab, the problems of long construction cycle and high cost in the existing technology are solved, and synchronous pouring is achieved, which improves the construction quality and saves costs.
Patent Information
- Application Number
- CN202422221969.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the prior art, the construction of floating slabs needs to be completed before the floor slabs can be carried out, resulting in a long construction cycle and high cost, and the structure junctions of different stages need to be chiseled and treated.
The formwork support device is used to simultaneously pour the structural floating plate and the floor slab, including the main support frame, the floor slab formwork, concrete pads, tripods, sub-support frame, floating plate formwork and shear wall formwork. Through the connection of the pull bolts, the synchronous pouring of the floating plate and the floor slab is achieved to avoid structural handover at different stages.
The synchronous pouring of floating slabs and floor slabs is achieved, the construction cycle is shortened, the construction quality is improved, the construction cost is saved, and the gaps and leakage at the junction of structures in different stages are avoided.
Smart Images
Figure CN223151644U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, and more specifically, to a formwork support device for synchronous pouring of a structural cantilever slab and a floor slab. Background Technique
[0002] In building construction, the construction of cantilever slabs is a common building construction process, mainly applied between the floor slabs and the wall columns in the main building. The construction of the concrete cantilever slab structure is a crucial part of the concrete structure construction. Currently, in building construction, because the position of the cantilever slab is often not in the same position as the floor slab surface of the floor, only after the floor slab construction is completed, formwork support scaffolds and formworks are erected on the floor slab, and then the structural cantilever slab and the shear wall on its side are poured separately.
[0003] However, in the above-mentioned scheme, since the floor slab and the cantilever slab cannot be poured simultaneously, if they are poured simultaneously, the formworks of the floor slab and the cantilever slab need to be constructed simultaneously. Since the lower floor slab of the cantilever slab has not been constructed yet, there is no position for the lower placement of the support frame of the cantilever slab. And if the support frame is directly placed on the formwork of the lower floor slab, it will cause the formwork support scaffold of the cantilever slab to coagulate with the concrete of the floor slab, which not only affects the construction quality of the floor slab but also causes waste of the support frame. Therefore, the construction of the cantilever slab can only be carried out after the floor slab is poured and often requires a certain strength of the floor slab before the formwork construction of the cantilever slab can start on the floor slab surface with a certain strength, resulting in a longer construction period for the entire project, and it is also necessary to chisel the joint position of the structures poured at two different times, which increases the cost. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is that the construction of the secondary structural cantilever slab has the defects of long construction period and high construction cost. In order to overcome the defects of the prior art, the utility model provides a formwork support device for synchronous pouring of a structural cantilever slab and a floor slab, which can realize synchronous pouring of the floor slab and the cantilever slab and does not affect the construction quality of the lower floor slab, thereby shortening the construction period and saving the construction cost.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a formwork support device for synchronous pouring of a structural cantilever slab and a floor slab, including a main support frame, a floor slab formwork, concrete cushion blocks, a tripod, a secondary support frame, a cantilever slab formwork, a shear wall formwork and a tie bolt. The floor slab formwork is horizontally arranged on the main support frame, the concrete cushion blocks are arranged on the floor slab formwork, the tripod is arranged on the concrete cushion blocks, the secondary support frame is detachably connected to the top of the tripod, the cantilever slab formwork is horizontally arranged on the secondary support frame, two shear wall formworks are vertically arranged on one side of the secondary support frame, and the two shear wall formworks are fixed and connected to the secondary support frame through the tie bolt.
[0007] In a preferred technical solution of the present utility model, a steel pipe support is connected to the bottom of the auxiliary support frame. A vertical pole is connected to the bottom of the steel pipe support, and the bottom end of the vertical pole is connected to the tripod through a connecting bolt.
[0008] In a preferred technical solution of the present utility model, the tripod is composed of three steel bars welded together.
[0009] In a preferred technical solution of the present utility model, two or more wooden beams are arranged at intervals on the non-pouring surfaces of the floor slab formwork, the cantilever slab formwork, and the shear wall formwork.
[0010] In a preferred technical solution of the present utility model, the height from the top of the tripod to the floor slab formwork is equal to or slightly lower than the floor slab thickness.
[0011] The beneficial effects of the present utility model are as follows:
[0012] 1. The construction period of the cantilever slab is saved. This device can realize the synchronous pouring of the floor slab and the cantilever slab. Compared with the existing technology, the cantilever slab does not need to wait for the floor slab to have sufficient strength before starting construction, saving the construction period.
[0013] 2. The construction quality of the cantilever slab is improved. The cantilever slab and the floor slab are integrally poured and can be cured synchronously, with strong structural integrity, avoiding the generation of gaps or leakage at the joints of structures poured at different times.
[0014] 3. The construction cost is saved. The cantilever slab and the floor slab are integrally poured, and there is no need to chisel the joints of structures poured at different times, saving the construction cost of this part. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of a formwork support device for synchronous pouring of a structural cantilever slab and a floor slab provided by a specific embodiment of the present utility model;
[0016] Figure 2 is Figure 1 a partial structural schematic diagram at A in
[0017] In the figure:
[0018] 1. Main support frame; 2. Floor slab formwork; 3. Concrete cushion block; 4. Tripod; 5. Auxiliary support frame; 6. Cantilever slab formwork; 7. Shear wall formwork; 8. Tie bolt; 9. Steel pipe support; 10. Vertical pole; 11. Connecting bolt; 12. Wooden beam. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The technical solution of the present utility model will be further described below with reference to the drawings and through specific embodiments.
[0020] Such as Figure 1-2As shown in the figure, in the embodiment, a formwork support device for synchronous casting of a structural cantilever slab and a floor slab is provided, including a main support frame 1, a floor slab formwork 2, a concrete cushion block 3, a tripod 4, a secondary support frame 5, a cantilever slab formwork 6, a shear wall formwork 7 and a tie bolt 8. A floor slab formwork 2 is horizontally arranged on the main support frame 1, a concrete cushion block 3 is arranged on the floor slab formwork 2, a tripod 4 is arranged on the concrete cushion block 3, the top end of the tripod 4 is detachably connected with a secondary support frame 5, a cantilever slab formwork 6 is horizontally arranged on the secondary support frame 5, two shear wall formworks 7 are vertically arranged on one side of the secondary support frame 5, and the two shear wall formworks 7 are fixed and connected to the secondary support frame 5 through a tie bolt 8. In this embodiment, the arranged floor slab formwork 2 is used for casting the floor slab, the arranged cantilever slab formwork 6 is used for casting the cantilever slab, the arranged shear wall formwork 7 is used for casting the shear wall, and the lengths of the two shear wall formworks 7 are different. The bottom end of the shorter shear wall formwork 7 is flush with the top surface of the floor slab, and the top end is flush with the bottom surface of the cantilever slab; the bottom end of the longer shear wall formwork 7 is flush with the top surface of the floor slab, and the top end is flush with the top surface of the cantilever slab. After casting, the cantilever slab, the shear wall and the floor slab are connected into an integral structure, with high strength and good construction quality. The main support frame 1 mainly plays a role in supporting the floor slab formwork 2 and bearing the load above the floor slab formwork 2. The secondary support frame 5 mainly plays a role in supporting the cantilever slab formwork 6 and the shear wall formwork 7, and bearing the load above the cantilever slab formwork 6. Moreover, the secondary support frame 5 and the tripod 4 are detachably connected, which facilitates the disassembly operation after casting and improves the construction speed. Two or more concrete cushion blocks 3 are arranged, and two adjacent concrete cushion blocks 3 are arranged at equal intervals. The bottom end of the tripod 4 is embedded into the interior of the concrete cushion block 3 to form an integral structure, and the connection is more firm. The arranged tripod 4 is used to support the secondary support frame 5. Two tie bolts 8 are provided in total, and the two tie bolts 8 are respectively located at the upper and lower ends of the shear wall formwork 7.
[0021] Specifically, a steel pipe support 9 is connected to the bottom of the secondary support frame 5, a vertical pole 10 is vertically connected to the bottom of the steel pipe support 9, and the bottom end of the vertical pole 10 is connected to the tripod 4 through a connection bolt 11. In this embodiment, the steel pipe support 9 and the secondary support frame 5 are of an integral structure. The top end of the vertical pole 10 is welded to the bottom of the steel pipe support 9. The bottom end of the vertical pole 10 can be inserted into the connection bolt 11, and the connection bolt 11 is welded to the steel bar at the top of the tripod 4, so as to facilitate the installation or disassembly of the vertical pole 10 and the tripod 4. In addition, the connection bolt 11 will not shake while bearing the load transmitted by the vertical pole 10, ensuring the construction quality.
[0022] Specifically, the tripod 4 is composed of three welded steel bars.
[0023] Specifically, more than two wooden beams 12 are arranged at intervals on the non-pouring surfaces of the floor slab formwork 2, the cantilever slab formwork 6, and the shear wall formwork 7. In this embodiment, the surface of the formwork in contact with the concrete is usually referred to as the pouring surface, and the other surface is the non-pouring surface. The arranged wooden beams 12 are used in cooperation with the formwork to play a role in dispersing stress and reducing the adverse effects brought by stress concentration on the lower structural slab.
[0024] Specifically, the height from the top of the tripod 4 to the floor slab formwork 2 is equal to or slightly lower than the floor slab thickness. In this embodiment, after the pouring is completed, the tripod 4 and the concrete cushion block 3 will remain in the concrete of the floor slab.
[0025] Construction process flow: First, fixedly install the main support frame 1 on the ground, and horizontally install the floor slab formwork 2 on the top of the main support frame 1. Then, place the concrete cushion block 3 with the tripod 4 on the floor slab formwork 2, and insert the bottom end of the vertical rod 10 at the bottom of the auxiliary support frame 5 into the connecting bolt 11 at the top of the tripod 4 to fix the auxiliary support frame 5 on the floor slab formwork 2. Then, install the cantilever slab formwork 6 on the top of the auxiliary support frame 5, and install the shear wall formwork 7 on one side of the auxiliary support frame 5, thus completing the installation of this device. After the device is installed, start the concrete pouring. First, pour the floor slab on the floor slab formwork 2. After the concrete of the floor slab begins to set, the pouring of the shear wall and the cantilever slab can be started to prevent the concrete from overflowing downward when pouring the shear wall. After the concrete of the cantilever slab can be removed from the formwork, pull out the vertical rod 10 from the connecting bolt 11, so that the concrete cushion block 3 and the tripod 4 remain in the concrete of the floor slab. The small holes caused by the vertical rod 10 can be filled with mortar. Since the overall height of the concrete cushion block 3 and the tripod 4 is lower than the floor slab thickness, the situation of steel bars leaking out will not occur, ensuring the construction quality. The vertical rod 10 and the steel pipe support 9 welded together can be recycled and reused in the construction of the next cantilever slab, saving costs.
[0026] The present utility model is described through preferred embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. The present utility model is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application all belong to the protection scope of the present utility model.
Claims
1. Formwork support device for synchronous casting of structural cantilever slab and floor slab, characterized in that: It includes a main support frame (1), a floor slab formwork (2), concrete cushion blocks (3), a tripod (4), a secondary support frame (5), a cantilever slab formwork (6), a shear wall formwork (7) and tie bolts (8). The floor slab formwork (2) is horizontally arranged on the main support frame (1). The concrete cushion blocks (3) are arranged on the floor slab formwork (2). The tripod (4) is arranged on the concrete cushion blocks (3). The top of the tripod (4) is detachably connected to the secondary support frame (5). The cantilever slab formwork (6) is horizontally arranged on the secondary support frame (5). On one side of the secondary support frame (5), two shear wall formworks (7) are vertically arranged, and the two shear wall formworks (7) are fixed and connected to the secondary support frame (5) through tie bolts (8).
2. The formwork support device for synchronous casting of the structural floating slab and the floor slab according to claim 1, characterized in that: A steel pipe support (9) is connected to the bottom of the secondary support frame (5). A vertical pole (10) is vertically connected to the bottom of the steel pipe support (9), and the bottom end of the vertical pole (10) is connected to the tripod (4) through a connecting bolt (11).
3. The formwork support device for synchronous casting of the structural floating slab and the floor slab according to claim 1, characterized in that: The tripod (4) is composed of three steel bars welded together.
4. The formwork support device for synchronous casting of the structural floating slab and the floor slab according to claim 1, characterized in that: On the non-pouring surfaces of the floor slab formwork (2), the cantilever slab formwork (6) and the shear wall formwork (7), more than two wooden beams (12) are arranged at intervals.
5. The formwork support device for synchronous casting of the structural floating slab and the floor slab according to claim 1, characterized in that: The height from the top of the tripod (4) to the floor slab formwork (2) is equal to or slightly lower than the floor slab thickness.