Impermeable template

Abstract

The anti-seepage formwork comprises side formwork bodies and anti-seepage wing plates, the side formwork bodies and the anti-seepage wing plates are connected in a staggered mode, the anti-seepage wing plates are arranged on the top end faces of the side formwork bodies, the side formwork body on the top side is fixed to the plate faces of the anti-seepage wing plates, the side formwork bodies are vertically arranged, and the anti-seepage wing plates are arranged on the side formwork bodies. And the anti-seepage wing plates are obliquely arranged upwards. According to the anti-seepage formwork, the side formworks and the anti-seepage wing plates are arranged in a staggered mode, the structure of a traditional cold joint is changed, and the risk of water seepage of the cold joint is reduced by increasing or prolonging a water flow line after water seepage.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to an anti-seepage formwork. Background Art

[0002] A post-cast strip is a concrete strip left at the corresponding positions of the foundation slab, wall, or beam in accordance with design or construction specifications to prevent harmful cracks that may be caused by uneven shrinkage or settlement of the reinforced concrete structure during construction.

[0003] The post-cast strip temporarily divides the structure into several parts. After the internal contraction of the component, the construction joint concrete is poured after a period of time to connect the structure into a whole. The pouring time of the post-cast strip should be selected when the temperature is relatively low. Cement or concrete with a trace amount of aluminum powder in cement can be poured. Its strength grade should be one level higher than the strength of the component to prevent cracks between the new and old concrete and form weak parts. The location of the post-cast strip should also consider the consumption factors of different measures such as formwork.

[0004] The function of post-casting belt is:

[0005] 1. Solve the settlement difference

[0006] The structure and foundation of the high-rise building and the podium are designed as a whole, but during construction, the two parts are temporarily separated by post-cast strips. After the main structure is completed and most of the settlement (more than 50%) has been completed, the concrete of the connecting part is poured to connect the high and low floors into a whole. When designing, the foundation should consider the different stress states in the two stages and perform load verification separately. The calculation after the connection should take into account the additional internal force caused by the later settlement difference. This approach requires that the foundation soil is good and the settlement of the house can be basically completed during the construction period. At the same time, the following adjustment measures can also be taken:

[0007] (1) Adjusting pressure difference. The main building has a large load, so an integral foundation is used to reduce soil pressure and additional pressure. A shallower cross beam foundation is used in the lower part to increase soil pressure and make the settlement of the upper and lower floors close.

[0008] (2) Adjust the time difference. First construct the main building, wait until it is basically completed and the settlement is basically stable, and then construct the podium, so that the settlement in the later stages is basically similar.

[0009] (3) Adjust the elevation difference. After settlement calculation, the elevation of the main building is set slightly higher and the elevation of the podium is set slightly lower, leaving room for the settlement difference between the two so that their actual elevations are consistent.

[0010] 2. Reduce temperature shrinkage

[0011] Newly poured concrete shrinks during the hardening process, while the built structure expands when heated and shrinks when cooled. Most of the shrinkage of concrete hardening will be completed in the first 1 to 2 months after construction, while the effect of temperature changes on the structure is frequent. When its temperature deformation is constrained, temperature stress will be generated inside the structure, and in severe cases, cracks will appear in the components. In the construction, a post-casting strip is set up, which means that in a building that is too long, a seam with a width of 700 to 1000 mm is set every 30 to 40 meters, and the steel bars in the seam are overlapped or straight through and bent. After leaving the post-casting strip, the concrete can shrink freely during the construction process, thereby greatly reducing the shrinkage stress. The tensile strength of concrete can be mostly used to resist temperature stress and improve the ability of the structure to resist temperature changes. The retention time of the post-casting strip is generally not less than one month, during which time the shrinkage deformation can be completed by 30% to 40%. The pouring time of the post-casting strip should be selected when the temperature is relatively low (but it should be positive temperature). The post-casting strip concrete is poured and compacted with micro-expansion concrete that is one level higher than the design strength grade and strengthened maintenance to prevent cracks from appearing between the new and old concrete and form weak parts.

[0012] Conventional post-cast strip side formwork usually uses wooden formwork and cooperates with wire mesh to intercept concrete to achieve a partition effect, but cold joints will be formed during subsequent construction, resulting in the risk of water seepage. Utility Model Content

[0013] The purpose of this application is to overcome the problems of the prior art and to disclose an anti-seepage formwork, which solves the risk of water seepage caused by cold joints formed during the construction of the post-casting belt through the structural design of the anti-seepage formwork.

[0014] The purpose of this application is achieved through the following technical solutions:

[0015] An anti-seepage template, comprising: a side template and an anti-seepage wing plate, wherein each side template and the anti-seepage wing plate are staggered and connected.

[0016] The anti-seepage wing plate is arranged on the top end surface of the side formwork, and the top side formwork is fixed on the anti-seepage wing plate surface.

[0017] The side formwork is arranged vertically, and the anti-seepage wing plate is arranged obliquely upward.

[0018] According to a preferred embodiment, the angle between the anti-seepage wing plate and the side formwork is 45°.

[0019] According to a preferred embodiment, the anti-seepage template further includes a base, and the side template at the bottom end of the anti-seepage template is fixed on the base.

[0020] According to a preferred embodiment, the base is fixed on the bottom formwork at the construction location.

[0021] According to a preferred embodiment, the base is fixedly connected to the bottom formwork by bolts.

[0022] According to a preferred embodiment, the side formwork and the anti-seepage wing plate are integrally formed structures.

[0023] According to a preferred embodiment, the side formwork and the anti-seepage wing plate are fixedly connected to each other by connecting members.

[0024] According to a preferred embodiment, the connecting member is a screw.

[0025] According to a preferred embodiment, the anti-seepage formwork is a wooden structure.

[0026] According to a preferred embodiment, the anti-seepage formwork is a metal structure.

[0027] The main solution of the present application and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed in the present application. Those skilled in the art can understand that there are various combinations according to the prior art and common general knowledge after understanding the solution of the present application, and all of them are the technical solutions to be protected in the present application, and will not be enumerated here.

[0028] Advantages of the present application:

[0029] By staggering the side formwork and the anti-seepage wing plate, the anti-seepage formwork of the present application changes the structure of the traditional cold joint, and reduces the risk of cold joint seepage by increasing or extending the water flow path (i.e., the cold joint) after water seepage. Description of the Drawings

[0030] Figure 1 is a schematic installation structure diagram of the anti-seepage formwork of the present application;

[0031] Figure 2 is a schematic three-dimensional structure diagram of the anti-seepage formwork of the present application;

[0032] Figure 3 is a schematic structure diagram of the anti-seepage formwork after pouring;

[0033] Figure 4 is a schematic structure diagram of a certain structure of the anti-seepage formwork after pouring;

[0034] Among them, 101 - bottom formwork, 102 - base, 103 - side formwork, 104 - anti-seepage wing plate, 200 - concrete, 300 - post-cast strip. Specific Embodiments

[0035] The following describes the implementation manners of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0036] It should be noted that: Similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0039] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0040] In addition, it should be pointed out in the present application that in the present application, if the specific structures, connection relationships, positional relationships, power source relationships, etc. involved are not specifically written, then the structures, connection relationships, positional relationships, power source relationships, etc. involved in the present application are all known to those skilled in the art on the basis of the prior art without creative labor.

[0041] Embodiment 1

[0042] Reference Figures 1 to 4 As shown, the figure shows a waterproof formwork, which includes side formworks 103 and waterproof wing plates 104. Each side formwork 103 and waterproof wing plate 104 are arranged in an alternating and connected manner.

[0043] Among them, the waterproof wing plate 104 is arranged above the top end face of the side formwork 103, and the top side formwork 103 is fixed on the plate surface of the waterproof wing plate 104.

[0044] The side formwork 103 is arranged vertically, and the waterproof wing plate 104 is arranged obliquely upward.

[0045] The waterproof formwork of the present application changes the structure of the traditional cold joint by arranging the side formwork and the waterproof wing plate alternately, and reduces the risk of cold joint water seepage by increasing or extending the water flow path (i.e., the cold joint) after water seepage.

[0046] Preferably, the included angle between the waterproof wing plate 104 and the side formwork 103 is 45°. By setting the angle of the waterproof wing plate 104, the difficulty of water seepage in the gap is increased, thereby further reducing the risk of cold joint water seepage.

[0047] Preferably, the waterproof formwork further includes a base 102, and the side formwork 103 at the bottom end of the waterproof formwork is fixed on the base 102.

[0048] Preferably, the base 102 is fixed on the bottom formwork 101 at the construction position. Further, the base 102 can be fixedly connected to the bottom formwork 101 by bolts.

[0049] Preferably, the side formwork 103 and the waterproof wing plate 104 can be an integrally formed structure.

[0050] Preferably, the side formwork 103 and the waterproof wing plate 104 can be fixedly connected to each other through a connecting piece. Further, the connecting piece can be a screw.

[0051] Preferably, the waterproof formwork can be a wooden structure. Preferably, the waterproof formwork can be a metal structure.

[0052] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-seepage formwork, characterized in that, The anti-seepage formwork includes: side formworks (103) and anti-seepage wing plates (104), and each side formwork (103) and anti-seepage wing plate (104) are arranged in an alternating and connected manner. Among them, the anti-seepage wing plate (104) is arranged above the top end face of the side formwork (103), and the top-side side formwork (103) is fixed on the plate surface of the anti-seepage wing plate (104). The side formwork (103) is arranged vertically, and the anti-seepage wing plate (104) is arranged obliquely upward.

2. The impermeable formwork according to claim 1, wherein, The included angle between the anti-seepage wing plate (104) and the side formwork (103) is 45°.

3. The impermeable formwork according to claim 1, characterized in that, The anti-seepage formwork further includes a base (102), and the bottom-side side formwork (103) in the anti-seepage formwork is fixed on the base (102).

4. The impermeable formwork according to claim 3, characterized in that, The base (102) is fixed on the bottom formwork (101) at the construction position.

5. The anti-seepage formwork according to claim 4, characterized in that, The base (102) is fixedly connected to the bottom formwork (101) by bolts.

6. The anti-seepage formwork according to claim 1, characterized in that, The side formwork (103) and the anti-seepage wing plate (104) are of an integrally formed structure.

7. The anti-seepage formwork according to claim 1, characterized in that, The side formwork (103) and the anti-seepage wing plate (104) are fixedly connected to each other through connectors.

8. The anti-seepage formwork according to claim 7, characterized in that, The connector is a screw.

9. The impermeable formwork according to claim 1, characterized in that, The anti-seepage formwork is of a wooden structure.

10. The impermeable formwork according to claim 1, characterized in that, The anti-seepage formwork is of a metal structure.

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