High formwork for constructing high-span semi-arch ring

Abstract

The utility model provides a high formwork for constructing a high-span half-arch ring, which comprises a high-span plate arch ring and a profile steel support, the high-span plate arch ring is in the shape of a semicircle with a high middle and two low ends, an arched formwork is fixedly mounted on the profile steel support, a prefabricated arched concrete bottom formwork is fixed on the arched formwork, and the prefabricated arched concrete bottom formwork is fixed on the profile steel support. The prefabricated arched concrete bottom die and the arched template form a pouring space, and concrete is poured in the space formed by the prefabricated arched concrete bottom die and the arched template to be combined with the prefabricated arched concrete bottom die to form the integrated high-span semi-arch ring. According to the high formwork for constructing the high-span semi-arch ring, the high-span plate arch ring which not only can meet the combination of a plurality of high-span plate arch rings, but also can meet the strength required by the technology can be produced.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a high-support formwork for constructing a high-span semi-arch ring. Background Art

[0002] In the construction industry, "formwork" generally refers to the formwork and scaffolding systems used to support concrete during construction. These systems are used in the construction of large structures such as high-rise buildings, bridges, and hydraulic engineering projects. They play a vital role in ensuring safety and efficiency during construction.

[0003] In the project, it is necessary to build a high-span plate arch ring building with a semicircular shape that is high in the middle and low at both ends. The high-span plate arch rings need to be combined with each other, so they cannot be directly made into prefabricated parts. It is a non-standard building. There is currently no formwork or support formwork for producing this building on the market. The existing technology uses a full-floor scaffolding method to achieve support, but the operation is complicated and requires the construction of a large number of scaffolds, and formwork is built on the scaffolding. Then, concrete is poured into the formwork in a radial direction. During pouring, since the pouring point is at the highest position and the pouring direction cannot be changed, the concrete flows from the radial high point to the low point. Working at height increases the operating level requirements of the workers. If it is not handled properly, it is easy to produce through cracks, which will reduce the overall strength. Summary of the Invention

[0004] The problem to be solved by the utility model is to provide a high-support formwork for constructing high-span half-arch rings, which can produce high-span plate arch rings that can meet the requirements of combining multiple high-span plate arch rings and achieve the strength required by the technology.

[0005] The technical solution adopted by the utility model to solve the above problems is: a high-support formwork for constructing a high-span semi-arch ring, comprising a high-span plate arch ring and a steel support, the high-span plate arch ring is in a semicircular shape with a high middle and low two ends, an arch template is fixedly installed on the steel support, a prefabricated arch concrete bottom template is fixed on the arch template, the prefabricated arch concrete bottom template and the arch template form a casting space, and an integrated high-span semi-arch ring is formed by pouring concrete in the space formed by the prefabricated arch concrete bottom template and the arch template and combining it with the prefabricated arch concrete bottom template.

[0006] An arch formwork is installed above the steel support set on the high support formwork for constructing a high-span semi-arch ring, and a prefabricated arch concrete bottom formwork is installed on the formwork. By prefabricating part of the high-span slab arch ring first, the pouring direction is changed during prefabrication to improve the overall strength. While ensuring that the strength meets the standard, the remaining part is poured at the same time as other high-span slab arch rings to ensure consistency in appearance, minimize the workers' difficult work at heights, and improve their work safety.

[0007] Preferably, the prefabricated arched concrete bottom form is formed by axially pouring concrete in a prefabricated mold.

[0008] Preferably, the precast mold includes a base plate, on which a first arc plate, a second arc plate, and a side plate are arranged. The radial outer wall of the first arc plate is consistent with the radial inner wall of the high-span plate arch ring, and the outer wall of the first arc plate is coaxial with the inner wall of the second arc plate. The first arc plate and the second arc plate are axially connected upward through the side plate and enclose a casting space. Concrete is poured in the space enclosed by the first arc plate and the second arc plate connected by the side plate to form an integrated structure.

[0009] Preferably, the upper surface of the prefabricated arched concrete bottom form is roughened before pouring the exterior layer.

[0010] Preferably, the arch formwork includes an upper cover plate, a pad, and side plates. There are two pads, and one side of the upper surface of the two pads is respectively connected to the two end faces of the lower part of the precast arch concrete bottom formwork, and the other side of the upper surface of the two pads is respectively connected to the two ends of the upper cover plate. The lower end face of the upper cover plate forms the upper end face of the high-span semi-arch ring and is coaxial with the precast arch concrete bottom formwork. The upper cover plate, pad, and precast arch concrete bottom formwork are connected and enclosed by the side plates to form a casting space.

[0011] Preferably, the steel support comprises two first support plates and a second support plate, the two first support plates are respectively located directly below the two pads, the first support plates are fixedly connected to the pads, and a number of vertically upward columns are fixedly connected directly below the first support plates, and the upper end surface of the second support plate abuts against the highest point of the radial inner wall of the precast arched concrete bottom mold BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is a three-dimensional diagram of the high-span arch ring;

[0014] Figure 3 A three-dimensional diagram of a prefabricated mold;

[0015] Figure 4 This is a three-dimensional diagram of the utility model without the wall panel.

[0016] Diagram: 1. High-span slab arch ring; 2. Steel bracket; 2.1. First support plate; 2.2. Second support plate; 3. Arch formwork; 3.1. Upper cover plate; 3.2. Pad; 3.3. Wall panel; 4. Precast arch concrete bottom formwork; 5. Precast mold; 5.1. Bottom plate; 5.2. First arc plate; 5.3. Second arc plate; 5.4. Side panel. DETAILED DESCRIPTION

[0017] Before describing in detail any embodiment of the present invention, it should be understood that the present invention is not limited in its application to the construction and arrangement details of the components set forth in the following description or illustrated in the following figures. The present invention is capable of other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used herein are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and variations thereof herein is intended to cover the items and their equivalents set forth below, as well as additional items. Unless otherwise specified or limited, the terms "mount", "connect", "support" and "couple" and variations thereof are used broadly and cover direct mounting and indirect mounting, connection, support and coupling. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings.

[0018] Furthermore, on the first hand, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention 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 the above terms cannot be understood as limitations on the present invention; on the second hand, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0019] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

[0020] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0021] See also Figure 2 , a high formwork for constructing a high-span semi-arch ring, wherein the high-span plate arch ring 1 is in a semicircular shape with a high middle and low ends;

[0022] Please refer to Figure 1 The high formwork includes a prefabricated arched concrete bottom formwork 4, an arched template 3, and a steel support 2;

[0023] The prefabricated arched concrete bottom form 4 is formed by axially pouring concrete in the prefabricated mold 5;

[0024] Please refer to Figure 3 The prefabricated mold 5 includes a bottom plate 5.1, on which a first arc plate 5.2, a second arc plate 5.3, and a side plate 5.4 are provided. The radial outer wall of the first arc plate 5.2 is consistent with the radial inner wall of the high-span arch ring 1, and the outer wall of the first arc plate 5.2 is coaxial with the inner wall of the second arc plate 5.3. The first arc plate 5.2 and the second arc plate 5.3 are axially connected upward by the side plate 5.4 and enclose a casting space. Concrete is poured in the space enclosed by the first arc plate 5.2 and the second arc plate 5.3 through the side plate 5.4 to form an integrated structure.

[0025] Please refer to Figure 4 The arch formwork 3 includes an upper cover plate 3.1, a pad 3.2, and a wall plate 3.3. There are two pads 3.2. One side of the upper surface of the two pads 3.2 is respectively connected to the two end surfaces of the lower part of the precast arch concrete bottom form 4. The other side of the upper surface of the two pads 3.2 is respectively connected to the two ends of the upper cover plate 3.1. The lower end surface of the upper cover plate 3.1 forms the upper end surface of the high-span semi-arch ring and is coaxial with the precast arch concrete bottom form 4. The upper cover plate 3.1, the pad 3.2, and the precast arch concrete bottom form 4 are connected and enclosed by the wall plate 3.3 to form a pouring space;

[0026] The steel support 2 includes two first support plates 2.1 and a second support plate 2.2. The two first support plates 2.1 are respectively located directly below the two pads 3.2. The first support plates 2.1 are fixedly connected to the pads 3.2. A plurality of vertically upward columns are fixedly connected directly below the first support plates 2.1. The upper end surface of the second support plate 2.2 abuts against the highest point of the radial inner wall of the precast arched concrete bottom form 4.

[0027] The upper cover plate 3.1, the backing plate 3.2, and the precast arched concrete bottom form 4 are connected and enclosed by the side plates 5.4 to form a casting space, and the concrete is poured into the precast arched concrete bottom form 4 to form an integrated high-span semi-arch ring. The upper surface of the precast arched concrete bottom form 4 is roughened before the exterior layer is cast.

[0028] The above description is merely a description of the preferred embodiment of the present invention and should not be construed as limiting the claims. The present invention is not limited to the above embodiment, and variations in its specific structure are permitted. All variations within the scope of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A high formwork for constructing a high-span semi-arch ring, characterized in that: The invention comprises a high-span plate arch ring (1) and a steel support (2), wherein the high-span plate arch ring (1) is in a semicircular shape with a high middle and low ends, an arch template (3) is fixedly mounted on the steel support (2), a prefabricated arched concrete bottom mold (4) is fixed on the arch template (3), and a casting space is formed by the prefabricated arched concrete bottom mold (4) and the arch template (3), and concrete is cast in the space formed by the prefabricated arched concrete bottom mold (4) and the arch template (3), thereby forming an integrated high-span semi-arch ring in combination with the prefabricated arched concrete bottom mold (4).

2. The high-support formwork for constructing a high-span semi-arch ring according to claim 1, characterized in that: The prefabricated arched concrete bottom form (4) is formed by axially pouring concrete in a prefabricated mold (5).

3. The high formwork for constructing a high-span semi-arch ring according to claim 2, characterized in that: The prefabricated mold (5) comprises a base plate (5.1), on which a first circular arc plate (5.2), a second circular arc plate (5.3), and a wall plate (3.3) are arranged. The radial outer wall of the first circular arc plate (5.2) is consistent with the radial inner wall of the high-span arch ring (1). The outer wall of the first circular arc plate (5.2) and the inner wall of the second circular arc plate (5.3) are coaxial. The first circular arc plate (5.2) and the second circular arc plate (5.3) are connected axially upward through the wall plate (3.3) to enclose a casting space. Concrete is cast in the space enclosed by the first circular arc plate (5.2) and the second circular arc plate (5.3) connected through the wall plate (3.3) to form an integrated structure.

4. The high formwork for constructing a high-span semi-arch ring according to claim 1, characterized in that: The upper surface of the prefabricated arched concrete bottom form (4) is roughened before the exterior layer is poured.

5. The high formwork for constructing a high-span semi-arch ring according to claim 1, characterized in that: The arch formwork (3) comprises an upper cover plate (3.1), a pad plate (3.2), and a side plate (5.4). There are two pad plates (3.2). One side of the upper surface of the two pad plates (3.2) is respectively connected to the two end surfaces of the lower part of the precast arch concrete bottom formwork (4). The other side of the upper surface of the two pad plates (3.2) is respectively connected to the two ends of the upper cover plate (3.1). The lower end surface of the upper cover plate (3.1) forms the upper end surface of a high-span semi-arch ring and is coaxial with the precast arch concrete bottom formwork (4). The upper cover plate (3.1), the pad plate (3.2), and the precast arch concrete bottom formwork (4) are connected and enclosed by the side plates (5.4) to form a casting space.

6. The high formwork for constructing a high-span semi-arch ring according to claim 1, characterized in that: The steel support (2) comprises two first support plates (2.1) and a second support plate (2.2); the two first support plates (2.1) are respectively located directly below two pads (3.2); the first support plates (2.1) are fixedly connected to the pads (3.2); and a plurality of vertically upward columns are fixedly connected directly below the first support plates (2.1); and the upper end surface of the second support plate (2.2) abuts against the highest point of the radial inner wall of the precast arched concrete bottom mold (4).

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