Dismounting-free formwork suitable for large bracket

Abstract

The dismantling-free formwork suitable for the large corbel comprises a corbel body and a dismantling-free formwork body arranged on the inclined face of the corbel body, the corbel body comprises a concrete foundation at the bottom and a concrete pouring layer above the concrete foundation, and a snakelike column is pre-buried in the concrete pouring layer. The dismantling-free formwork is obliquely fixed through the S-shaped column and the pull rod. According to the dismantling-free formwork suitable for the large corbel, after construction, the dismantling-free formwork and the corbel body form a whole, dismantling is not needed, a large amount of formwork dismantling time can be saved, the construction progress is accelerated, and the dismantling-free formwork suitable for the large corbel is suitable for application and popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete load-bearing bracket technical field, especially suitable for large -scale bracket's remove template of exempting from. BACKGROUND

[0002] Large -scale bracket is mainly used as structural support component in the building, is used for dispersing and transmitting load to ensure the building stability.

[0003] Generally, in the construction of large -scale bracket of hydraulic structure, when the concrete construction approaches the position of bracket, it needs to stop the warehouse and prepare the bracket reinforcement, formwork and other matters, this process consumes time and effort, and generally, the bracket formwork adopts the shaped steel formwork, the integral lifting formwork, the quantity of this formwork is large, and it is not easy to disassemble, especially the inclined side part of the bracket, the disassembly and support of the formwork are more difficult, therefore, a remove template is urgently needed in the part. UTILITY MODEL CONTENT

[0004] The utility model discloses a remove template and bracket body form an integral whole, do not need to remove, can save a large amount of formwork disassembly time, accelerate the construction progress suitable for large -scale bracket's remove template that exempts from.

[0005] To achieve the above object, the technical scheme of the utility model is as follows: a remove template suitable for large -scale bracket, which comprises a bracket body and a remove template arranged on the inclined surface of the bracket body, the bracket body comprises a concrete foundation at the bottom and a concrete pouring layer above the concrete foundation, a serpentine column is embedded in the concrete pouring layer, and the remove template is fixedly inclined through the serpentine column and a pull rod.

[0006] Preferably, the concrete pouring layer comprises a first concrete pouring layer and a second concrete pouring layer, the serpentine column comprises a first serpentine column and a second serpentine column, the first serpentine column is embedded in the concrete foundation, and the second serpentine column is embedded in the first concrete pouring layer.

[0007] Preferably, a plurality of anchor rings extending outward are embedded in the remove template, one end of the pull rod is fixedly connected with the anchor ring, and the other end of the pull rod extends into the concrete foundation or the pouring layer through the serpentine column.

[0008] Preferably, the pull rod is fixedly connected with a U-shaped rib at the end away from the remove template, both ends of the U-shaped rib are provided with hooks, and the bending directions of the two hooks are opposite.

[0009] Preferably, the remove template is a cuboid, the remove template is a concrete prefabricated slab, and the inner side of the remove template is roughened.

[0010] The utility model discloses a kind of demolish-free formworks suitable for large bracket, including bracket body and demolish-free formwork being located in the inclined plane of bracket body, the bracket body includes the concrete foundation of bottom and the concrete pouring layer above concrete foundation, serpentine column is embedded in concrete pouring layer, and demolish-free formwork is fixed by serpentine column and pull rod inclination;Compared with prior art, the demolish-free formwork suitable for large bracket is integrally formed after construction demolish-free formwork and bracket body, without demolishing, can save a lot of formwork dismounting time, accelerates construction progress. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 For the internal structure diagram of bracket body in the utility model Figure 1 .

[0012] Figure 2 For the internal structure diagram of bracket body in the utility model Figure 2 .

[0013] Figure 3 For the internal structure diagram of bracket body in the utility model Figure 3 .

[0014] Figure 4 For the perspective view of bracket body in the utility model.

[0015] Figure 5 For the structure diagram of demolish-free formwork in the utility model.

[0016] Figure 6 For the structure diagram of pull rod end in the utility model.

[0017] In the drawing: 1, bracket body;11, concrete foundation;12, first concrete pouring layer;13, second concrete pouring layer;2, demolish-free formwork;21, anchor ring;3, first serpentine column;4, second serpentine column;5, pull rod;51, U-shaped rib;52, hook. DETAILED DESCRIPTION

[0018] Now further detailed description of the utility model is combined with the drawing.The drawing is simplified schematic diagram, and only schematically illustrates the basic structure of the utility model, thus it only shows the structure related to the utility model.

[0019] Please refer to Figures 1-6 , a kind of demolish-free formworks suitable for large bracket, including bracket body 1 and demolish-free formwork 2 being located in the inclined plane of bracket body 1, the bracket body 1 includes the concrete foundation 11 of bottom and the concrete pouring layer above concrete foundation 11, serpentine column is embedded in concrete pouring layer, and demolish-free formwork 2 is fixed by serpentine column and pull rod 5 inclination.

[0020] In the embodiment, the concrete pouring layer includes a first concrete pouring layer 12 and a second concrete pouring layer 13, and the serpentine column includes a first serpentine column 3 and a second serpentine column 4, the first serpentine column 3 is embedded in the concrete foundation 11, and the second serpentine column 4 is embedded in the first concrete pouring layer 12.

[0021] The inner side of the non-demolition formwork 2 is pre-embedded with a plurality of anchor rings 21 extending outward, one end of the pull rod 5 is fixedly connected with the anchor ring 21 by welding, and the other end extends into the concrete foundation 11 or the pouring layer through the corresponding serpentine column, wherein the pull rod 5 is in two sections, one section is welded to connect the anchor ring 21 and the serpentine column, and the other end is welded to connect the serpentine column and the U-shaped rib 51, that is, the non-demolition formwork is fixed, and the serpentine column is also reinforced.

[0022] That is, the non-demolition formwork 2 is held by the pull rod 5 and the serpentine column, so that the non-demolition formwork maintains a certain angle, thereby meeting the pouring requirement; in the embodiment, the number of concrete pouring layers is appropriately increased or decreased according to the drawing; in construction, the inclined surface of the corbel body is supported by the non-demolition formwork 2, and the remaining side surfaces are supported by ordinary formworks, the ordinary formworks on the outer side are removed after the concrete is poured and solidified, and the non-demolition formwork 2 remains on the inclined surface of the corbel body and does not need to be removed. That is, the non-demolition formwork 2 is a one-time formwork, which can be connected with the corbel body to form an integral whole, thereby avoiding the difficulty of disassembling and assembling the formwork at the special (inclined surface) position.

[0023] Further, in order to improve the fixing stability of the non-demolition formwork 2, the pull rod 5 is fixedly connected with the U-shaped rib 51 at the end away from the non-demolition formwork 2, both ends of the U-shaped rib 51 are provided with hooks 52, and the bending directions of the two hooks 52 are opposite.

[0024] The U-shaped rib 51 and the hook 52 are integrated, and the U-shaped rib 51 and the hook 52 are pre-embedded in the concrete foundation, the first concrete pouring layer or the second concrete pouring layer.

[0025] The second concrete pouring layer 13 needs to be solidified after the first layer of concrete pouring layer is poured, and the corresponding non-demolition formwork 2, serpentine column and pull rod are fixed in place, and then the second concrete pouring layer 13 is poured after preparation.

[0026] In the embodiment, the non-demolition formwork 2 is a cuboid, and the non-demolition formwork 2 is a concrete prefabricated plate, which is made in advance according to the size before construction, and the inner side of the non-demolition formwork is roughened to facilitate contact with the poured concrete. In addition, the outer side of the concrete foundation 11 can also be provided with a protrusion for supporting the non-demolition formwork 2, the protrusion protrudes from the outer surface of the concrete foundation 11 and can form stable support.

[0027] The processing flow of the non-demolition formwork 2 is: firstly determining the size and quantity of the mold → reinforcing bar processing and installation → pre-embedded part installation → concrete pouring → chiseling → maintenance → factory delivery.

[0028] Taking the Lower Kafubu Gorge Hydropower Station in Zambia as an example, the length of the corbel formwork on the dam crest is 4.2 m, the width of the formwork is 1.0 m, and the thickness is 20 cm; the reinforcing bars are arranged according to the requirements of the drawings, with double-layer and double-direction reinforcing bars, a spacing of 20 cm, an interlayer spacing of 15 cm, and a protective layer thickness of 2.5 cm; the concrete grade adopts C30 secondary mix concrete, the tank truck is used for direct unloading, and the vibration is performed by using a diameter of 50 mm and 70 mm vibration rod.

[0029] The specific construction process is as follows:

[0030] (1) Determine the form of the non-demolition formwork: the non-demolition formwork adopts a rectangle, with a length of 4.2 m, a width of 1.0 m, and a thickness of 20 cm;

[0031] (2) Determine the materials used for the non-demolition formwork: the most common steel reinforced concrete mixed with sand and gravel is used, and the concrete grade is C30;

[0032] (3) The non-demolition formwork is a one-time formwork, which can be connected with the corbel concrete to form an integral whole, and the installation is considered during the production, and U-shaped hooks and chiseling operations also need to be installed;

[0033] (4) The non-demolition formwork can be prefabricated in advance, and personnel and equipment can be immediately organized for installation after the site has installation conditions.

[0034] (5) The formwork installation can be performed by using a truck-mounted crane, a car crane, or a tower crane, etc., and the weight of a single prefabricated formwork is 0.2*1*2*2.5=1 t, which can be installed by using a truck-mounted crane, etc.

[0035] (6) Before installation, a serpentine column needs to be embedded in the warehouse, and the rod is welded to the hook of the prefabricated formwork to fix the formwork. The prefabricated formwork is installed in this way until the installation of the corbel formwork in the warehouse is completed.

[0036] The use of the non-demolition formwork can continuously and quickly complete the corbel concrete construction, save the time for other formwork production and demolition, speed up the construction progress, reduce the construction cost, and save the construction period.

[0037] Obviously, the above embodiments are only examples for clearly illustrating, but not limit the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not enumerated, and the obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A non-demolishable formwork suitable for large corbels, characterized in that, The bracket body includes a concrete base at the bottom and a concrete pouring layer above the concrete base, and a serpentine column is embedded in the concrete pouring layer, and the removable formwork is fixedly inclined through the serpentine column and a pull rod.

2. The demountable formwork suitable for large corbels according to claim 1, wherein, The concrete pouring layer includes a first concrete pouring layer and a second concrete pouring layer, the serpentine column includes a first serpentine column and a second serpentine column, the first serpentine column is embedded in the concrete base, and the second serpentine column is embedded in the first concrete pouring layer.

3. The demountable formwork suitable for large corbels according to claim 2, wherein, A plurality of outwardly extending anchor rings are embedded in the removable formwork, one end of the pull rod is fixedly connected with the anchor ring, and the other end of the pull rod extends into the concrete base or the pouring layer through the serpentine column.

4. The demountable formwork suitable for large corbels according to claim 3, wherein, One end of the pull rod is fixedly connected with a U-shaped rib through welding, both ends of the U-shaped rib are provided with hooks, and the bending directions of the two hooks are opposite.

5. The demountable formwork suitable for large corbels according to any one of claims 1 to 4, wherein, The removable formwork is a cuboid, the removable formwork is a concrete prefabricated plate, and the inner side of the removable formwork is roughened.

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