Plate post-cast strip support-free formwork system

Abstract

The utility model provides a plate post-cast strip support-free formwork supporting system, which relates to the technical field of post-cast strip formwork supporting and comprises an upper double-rod support and a lower double-rod support, the upper double-rod support and the lower double-rod support are respectively arranged above and below a post-cast strip, a plurality of upper cushion blocks are arranged between the upper double-rod support and the upper end of a plate, and a plurality of lower cushion blocks are arranged between the upper double-rod support and the lower end of the plate. A formwork is arranged at the lower end of the post-cast strip, a plurality of lower cushion blocks are arranged between the lower double-rod support and the lower end of the formwork, and the upper double-rod support and the lower double-rod support are connected through a plurality of water stop screws. According to the utility model, the problem that a secondary frame body needs to be erected during pouring of the plate surface post-cast strip can be solved, and the waste of manpower and materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of post-casting strip formwork, in particular to a support-free formwork system for a post-casting strip of a board surface. Background Art

[0002] Post-cast strips are concrete strips set at corresponding positions of foundation slabs, walls and beams in accordance with design or construction specifications to prevent harmful cracks that may occur in reinforced concrete structures due to uneven shrinkage or settlement during construction. Post-cast strips temporarily divide the structure into several parts, and after a period of time after the internal shrinkage of the components, concrete is poured in the construction joints to connect the structure into a whole.

[0003] During the construction of the basement of a building project, due to the complex construction conditions and many processes, it is often necessary to dismantle part of the frame, clean the post-casting strip and carry out other processes, and then re-erect the frame, which will waste construction time and materials. Summary of the invention

[0004] In view of the above-mentioned prior art, the utility model proposes a support-free formwork system for the post-casting strip of the slab surface, so as to solve the problem that the casting of the post-casting strip of the slab surface requires the secondary frame erection, thereby reducing the waste of labor and materials.

[0005] The utility model provides a support-free formwork system for a post-cast strip of a board surface, comprising an upper double-rod support and a lower double-rod support, wherein the upper double-rod support and the lower double-rod support are respectively placed at the upper and lower parts of the post-cast strip, a plurality of upper pads are arranged between the upper double-rod support and the upper end of the board surface, a formwork is arranged at the lower end of the post-cast strip, a plurality of lower pads are arranged between the lower double-rod support and the lower end of the formwork, and the upper double-rod support and the lower double-rod support are connected by a plurality of water-stop screws.

[0006] Preferably, the upper double-rod support and the lower double-rod support are both made of steel pipes.

[0007] Preferably, the upper pad and the lower pad are both made of wood.

[0008] Preferably, the water-stop screw is a three-section water-stop screw.

[0009] Preferably, both ends of the three-section water-stop screw are fixed by mountain-shaped clips and nuts.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a support-free formwork system for the post-casting strip of the slab surface, which can effectively improve the reinforcement strength, reduce the risk of formwork explosion, improve work efficiency, shorten the construction period, and at the same time reduce the erection of the frame, reduce costs, and bring certain economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the support-free formwork system for the post-casting strip of the slab in an embodiment of the utility model.

[0012] In the figure: 1. Upper double-rod support; 2. Lower double-rod support; 3. Upper pad; 4. Formwork; 5. Lower pad; 6. Three-stage water-stop screw; 7. Mountain-shaped card. DETAILED DESCRIPTION

[0013] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0014] Example: Figure 1 The shown system is a support-free formwork system for a post-cast strip of a slab, comprising an upper double-rod support 1 and a lower double-rod support 2, both of which are made of Φ48×2.7 double-row steel pipes, and are respectively placed at the upper and lower parts of the post-cast strip, and an upper pad 3 is respectively arranged between the lower sides of both ends of the upper double-rod support 1 and the upper end of the slab, a 15mm thick formwork 4 is arranged at the lower end of the post-cast strip, and three lower pads 5 are arranged between the upper end of the lower double-rod support 2 and the lower end of the formwork 4, and the upper pad 3 and the lower pad 5 are both made of wooden squares, and the upper double-rod support 1 and the lower double-rod support 2 are connected by two waterstop screws, and the waterstop screws are M16 three-stage waterstop screws 6, and both ends of the three-stage waterstop screws 6 are fixed by mountain-shaped clips 7 and nuts.

[0015] When the formwork system is used, an upper pad 3 is set at the upper end of the cast slab on both sides of the post-cast strip to be cast; horizontal steel bars are tied according to design requirements, and the spacing is controlled during tying; the three-stage water-stop screw 6 and the upper double-rod support 1 are placed, and the mountain-shaped card 7 is connected with the nut; corresponding to the position of the three-stage water-stop screw 6, the template 4 is opened, the post-cast strip mold is closed, the lower pad 5 and the lower double-rod support 2 are installed, and the upper and lower nuts of the three-stage water-stop screw 6 are tightened; and the post-cast strip concrete is poured.

[0016] The above are only implementation methods of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure made using the contents of the specification and drawings of the present utility model, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present utility model.

Claims

1. A support-free formwork system for post-casting strips on a slab, characterized in that: It includes an upper double-rod support and a lower double-rod support, which are respectively placed above and below the post-cast strip, a number of upper pads are arranged between the upper double-rod support and the upper end of the board surface, a formwork is arranged at the lower end of the post-cast strip, a number of lower pads are arranged between the lower double-rod support and the lower end of the formwork, and the upper double-rod support and the lower double-rod support are connected by a number of water-stop screws.

2. The support-free formwork system for post-casting strips on the slab surface according to claim 1 is characterized in that: The upper double-rod support and the lower double-rod support are both made of steel pipes.

3. The support-free formwork system for post-casting strips on slab surface according to claim 1 or 2, characterized in that: The upper pad and the lower pad are both made of wood.

4. The slab post-casting strip support-free formwork system according to claim 1 or 2, characterized in that: The water-stop screw adopts a three-section water-stop screw.

5. The support-free formwork system for post-casting strips on the slab surface as claimed in claim 4 is characterized in that: Both ends of the three-section water-stop screw are fixed by mountain-shaped clamps and nuts.

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