Silo conical shell reinforced concrete construction supporting structure

Abstract

The utility model relates to a silo conical shell reinforced concrete construction supporting structure which comprises a silo wall and a silo tip conical shell, a plurality of vertical supports are evenly distributed on the inner wall of an upper hole of the silo tip conical shell, a plurality of stand columns are evenly distributed at the upper end of the silo wall, the vertical supports and the stand columns are connected in a one-to-one correspondence mode through pull rods, and a plurality of main supports are evenly distributed on the bottom face of the silo tip conical shell. The main supports are connected with the vertical supports, the main supports are connected with embedded parts in the silo wall, steel formworks are connected between the main supports on the circumference, and longitude secondary supports and latitude secondary supports are further arranged below the steel formworks. The supporting structure is simple in construction, supporting components of a full framing formwork system and a steel truss supporting system from the silo bottom to the silo top are not arranged, steel pipe stand columns in the middle of an umbrella-shaped structure and a plurality of horizontal supports arranged at intervals in the height direction are not arranged, and a large number of turnover materials can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of silo construction, in particular to a construction support structure for the reinforced concrete of a silo conical shell. Background Art

[0002] Slip formwork is widely used in silo construction. In traditional slip formwork construction, when it reaches the bottom of the silo top, after the concrete strength reaches the form removal requirement, the slip formwork is lowered to the bottom of the silo and removed, and then a full hall scaffold is erected inside the silo to support the construction of the reinforced concrete of the silo top conical shell. This method is time-consuming and laborious.

[0003] Referring to the Chinese patent with the patent number CN107269085A, this utility model patent discloses a construction method for the conical shell structure of a large-diameter concrete silo top. It uses a structure composed of a conical skeleton structure and a steel bar truss floor slab to replace the traditional full hall scaffold formwork support system from the bottom to the top of the silo. There are still deficiencies: First, the construction method not only changes the traditional support system but also changes the steel bar structure of the silo top main body. It only considers the costs of materials and personnel during the reinforced concrete construction process, without considering that changing the main steel bar structure requires the consent and verification and approval of the original design unit before it can be used. This process delays time and incurs management costs; Second, the continuous slab thickness of the steel bar truss floor slab is generally less than 6 mm and is exposed outside the concrete. After the silo is put into production, the continuous slab is extremely easy to be damaged and fall off when feeding materials from the silo top into the silo, further exposing the steel bars welded to the continuous slab. After the steel bars are exposed, corrosion will affect the safety of the silo top structure.

[0004] Referring to the Chinese patent with the patent number CN114991477A, this utility model patent discloses a construction method for an umbrella-shaped support system of a silo conical shell structure. Its characteristics are: the umbrella-shaped support system includes an intermediate steel pipe column, several radially arranged steel truss beams, and multiple horizontal supports arranged at intervals along the height direction of the intermediate steel pipe column. The intermediate steel pipe column is fixedly arranged in the middle inside the silo. The intermediate steel pipe column is composed of multiple sections of steel pipe columns connected by flange plates. The top end of the intermediate steel pipe column is fixedly connected with a circular ring beam bracket. One end of the steel truss beam is fixedly connected with the circular ring beam bracket, and the other end is fixedly welded with the steel embedded in the inner wall of the silo. Multiple inclined supports are arranged between the bottom of the circular ring beam bracket and the intermediate steel pipe column. Each horizontal support includes three horizontal support rods evenly arranged along the circumferential direction of the intermediate steel pipe column. The horizontal support rods are made of the boom of a tower crane. One end of the horizontal support rod is welded and connected with a circular tray fixedly connected to the intermediate steel pipe column, and the other end is welded and connected with a corbel arranged on the inner wall of the silo. Although the construction method simplifies the full hall scaffold formwork support system or the steel truss support system, it is still a support system from the bottom to the top of the silo. Except for the parts in contact with the silo top concrete, there are still a large number of support components that need to be disassembled and lifted out of the silo after the concrete is poured and the strength reaches the form removal requirement. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a construction support structure for the reinforced concrete of the silo conical shell, which can shorten the operation time and save materials.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A construction support structure for the reinforced concrete of the silo conical shell includes a silo wall and a silo top conical shell. A plurality of vertical supports are evenly distributed on the inner wall of the upper hole of the silo top conical shell, and a plurality of columns are evenly distributed at the upper end of the silo wall. The vertical supports and the columns are connected in one-to-one correspondence through tie rods. A plurality of main supports are evenly distributed on the bottom surface of the silo top conical shell. The main supports are connected with the vertical supports, and the main supports are connected with the embedded parts in the silo wall. Steel formworks are connected between the main supports on the circumference. Warp secondary supports and weft secondary supports are also provided under the steel formworks.

[0008] The upper surface of the silo wall is provided with embedded bolts, and the columns are connected with the embedded bolts through nuts.

[0009] The silo wall is provided with first embedded parts, the bottom of the main support is connected with the first embedded parts through bolts, and the top of the main support is connected with the vertical support through bolts.

[0010] The silo top conical shell is provided with second embedded parts, and the main support can be connected with the second embedded parts through bolts.

[0011] The warp secondary support and the weft secondary support are vertically arranged.

[0012] The main support and the steel formwork, the warp secondary support and the steel formwork, the weft secondary support and the steel formwork, the warp secondary support and the weft secondary support, and the main support and the weft secondary support are connected through disassembly components.

[0013] The disassembly component includes two connecting plates, and the two connecting plates are detachably connected through bolts.

[0014] Compared with the existing technology, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model forms a support structure for the construction of the reinforced concrete of the silo top conical shell through the cooperation of columns, vertical supports, main supports, tie rods, warp secondary supports, weft secondary supports and steel formworks. This support structure is simple in structure. There are neither the support components from the bottom to the top of the full hall formwork support system and the steel truss support system, nor the middle steel pipe columns of the umbrella-shaped structure and multiple horizontal supports arranged at intervals in the height direction, which can save a large amount of turnover materials.

[0016] 2. During the entire installation process of the support structure of the present utility model, all bolt connections are used and there is no welding. This not only shortens the high-altitude operation time but also eliminates the possibility of fire caused during the welding process. Moreover, except for being used as the support member for the steel formwork of the reinforced concrete conical shell on the silo top, other components are not inside the silo. This setting shortens the operation time in the limited space inside the silo during the demolition process, and can be recycled multiple times after being fabricated once, saving a large amount of labor during the fabrication process.

[0017] 3. Compared with the structure combined by the support structure of the present utility model, the conical skeleton structure and the steel bar truss floor slab, although there are additional column components and the formwork removal process, the original structural design is not changed. There is no need to contact the design unit for structural modification, saving the design fees for modification and the management fees generated during the contact process. It also avoids the influence on the safety of the conical shell structure on the silo top caused by the rusting of the exposed steel bars after the continuous slab of the steel bar truss floor slab falls off during production and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 It is a top view of the present utility model.

[0020] Figure 3 It is a schematic connection diagram of the main support and the steel formwork.

[0021] Figure 4 It is a schematic connection diagram of the meridional secondary support or the latitudinal secondary support and the steel formwork.

[0022] Figure 5 It is a schematic connection diagram of the main support and the latitudinal secondary support.

[0023] Figure 6 It is a schematic connection diagram of the meridional secondary support and the latitudinal secondary support.

[0024] In the figure: silo wall 1, conical shell on the silo top 2, column 3, vertical support 4, tie rod 5, main support 6, meridional secondary support 7, latitudinal secondary support 8, steel formwork 9, disassembly component 61, embedded bolt 301, first embedded part 601, second embedded part 602, connecting plate 701. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In the description of the present utility model, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] A reinforced concrete construction support structure of a silo cone shell comprises a silo wall 1 and a silo top cone shell 2. A plurality of vertical supports 4 are evenly distributed on the inner wall of the upper hole of the silo top cone shell 2. A plurality of columns 3 are evenly distributed on the upper end of the silo wall 1. The vertical supports 4 are connected to the columns 3 in a one-to-one correspondence through tie rods 5. A plurality of main supports 6 are evenly distributed on the bottom surface of the silo top cone shell 2. The main supports 6 are connected to the vertical supports 4, and the main supports 6 are connected to embedded parts in the silo wall 1. Steel templates 9 are connected between the main supports 6 on the circumference, and warp secondary supports 7 and latitude secondary supports 8 are also provided under the steel templates 9.

[0028] The upper surface of the silo wall 1 is provided with embedded bolts 301, and the columns 3 are connected with the embedded bolts 301 through nuts.

[0029] The silo wall 1 is provided with a first embedded part 601 , the bottom of the main support 6 is connected to the first embedded part 601 by bolts, and the top of the main support 6 is connected to the vertical support 4 by bolts.

[0030] The silo top cone shell 2 is provided with a second embedded part 602, and the main support 6 can be connected to the second embedded part 602 by bolts.

[0031] The warp secondary supports 7 and the weft secondary supports 8 are arranged perpendicularly.

[0032] The main support 6 and the steel formwork 9, the warp secondary support 7 and the steel formwork 9, the weft secondary support 8 and the steel formwork 9, the warp secondary support 7 and the weft secondary support 8, and the main support 6 and the weft secondary support 8 are connected via a disassembly assembly 61.

[0033] The disassembly assembly 61 includes two connecting plates 701, and the two connecting plates 701 are disassembled and connected by bolts.

[0034] The construction method includes the following specific steps:

[0035] 1) Connect the column 3 and the embedded bolts 301 on the silo wall 1 through nuts, then connect the other end of the column 3 to the tie rod 5 through bolts, and finally connect the tie rod 5 to the vertical support 4 through bolts;

[0036] 2) Then install the main support 6, connect one end of the main support 6 to the silo wall 1, and connect the other end to the vertical support 4 through bolts to form a set of support skeletons. Install multiple sets of support skeletons on the circumference.

[0037] 3) Install the warp secondary supports 7, weft secondary supports 8 and steel formwork 9 circle by circle between the main supports 6 in the order from bottom to top to form a conical shell construction platform. The quantities of the warp secondary supports 7 and the weft secondary supports 8 are set and adjusted according to the silo diameter and the weight of the reinforced concrete they bear.

[0038] 4) After the construction of the conical shell construction platform is completed, steel bar binding construction and concrete pouring construction can be carried out on it. Before the concrete pouring, connect the main support 6 to the upper embedded parts of the silo top conical shell 2 through bolts.

[0039] 5) After the concrete of the silo top conical shell 2 is poured and reaches the form removal strength, remove the steel formwork 9, the weft secondary supports 8 and the warp secondary supports 7 circle by circle from top to bottom in turn, then remove the bolts of the tie rod 5 and the vertical support 4, remove the vertical support 4, remove the connection between the main support 6 and the embedded parts, and then the main support 6 can be removed. Finally, remove the connection between the column 3 and the embedded bolts on the silo wall 1 to complete the removal of the column 3 and the tie rod 5, thus completing the removal of this support structure.

[0040] In addition, the column 3 and the tie rod 5 can be retained or removed according to the subsequent construction method of the silo top roof slab.

[0041] If the structure of the silo top roof slab is steel structure, after the main support 6 is removed, the column 3 and the tie rod 5 can be directly removed. If the structure of the silo top roof slab is reinforced concrete, after the main support 6 is removed, the column 3 and the tie rod 5 can be used to continue connecting the steel formwork of the silo top roof slab. When the concrete of the silo top roof slab reaches the form removal strength, then remove the column 3 and the tie rod 5.

[0042] To make the purpose, technical solution and technical effect of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. However, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Combining the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0043] Embodiment

[0044] A construction support structure for the reinforced concrete of a silo conical shell, comprising a silo wall 1 and a silo top conical shell 2. 36 vertical supports 4 are evenly distributed on the inner wall of the upper hole of the silo top conical shell 2, and 36 columns 3 are evenly distributed at the upper end of the silo wall 1. Embedded bolts 301 are provided on the upper surface of the silo wall 1. The vertical supports 3 are connected in a matching manner with the embedded bolts 301 through nuts, and the vertical supports 4 and the columns 3 are connected in a one-to-one correspondence through tie rods 5. The columns 3, the vertical supports 4 and the main supports 6 are all made of rolled H-shaped steel, and the tie rods 5 are made of seamless steel pipes.

[0045] 36 main supports 6 are evenly distributed on the bottom surface of the silo top conical shell 2. First embedded parts 601 are provided on the silo wall 1. The bottom of the main support 6 is connected in a matching manner with the first embedded part 601 through bolts, and the top of the main support 6 is connected with the vertical support 4 through bolts.

[0046] Second embedded parts 602 are provided on the silo top conical shell 2. The main support 6 can be connected in a matching manner with the second embedded part 602 through bolts.

[0047] Steel formworks 9 are connected between the main supports 6 on the circumference. The main supports 6 and the steel formworks 9 are detachably connected. Warp secondary supports 7 and weft secondary supports 8 are also provided below the steel formworks 9. The warp secondary supports 7 and the weft secondary supports 8 are vertically arranged. The warp secondary supports 7 or the weft secondary supports 8 are made of angle steel.

[0048] The main supports 6 and the steel formworks 9, the warp secondary supports 7 and the steel formworks 9, the weft secondary supports 8 and the steel formworks 9, the warp secondary supports 7 and the weft secondary supports 8, and the main supports 6 and the weft secondary supports 8 are connected through disassembly components 61. The disassembly components 61 include two connecting plates 701, and the two connecting plates 701 are detachably connected through bolts.

[0049] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and basic spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silo cone shell reinforced concrete construction support structure, characterized in that: It includes a silo wall and a silo top cone shell. A number of vertical supports are evenly distributed on the inner wall of the upper hole of the silo top cone shell, and a number of columns are evenly distributed on the upper end of the silo wall. The vertical supports and the columns are connected one by one through pull rods. A number of main supports are evenly distributed on the bottom surface of the silo top cone shell, and the main supports are connected to the vertical supports, and the main supports are connected to the embedded parts in the silo wall. Steel formworks are connected between the main supports on the circumference, and warp secondary supports and weft secondary supports are also provided under the steel formworks.

2. A silo cone shell reinforced concrete construction support structure according to claim 1, characterized in that: The upper surface of the silo wall is provided with embedded bolts, and the columns are connected with the embedded bolts through nuts.

3. The silo cone shell reinforced concrete construction support structure according to claim 1 is characterized in that: The first embedded part is arranged on the wall of the silo, the bottom of the main support is connected with the first embedded part by bolts, and the top of the main support is connected with the vertical support by bolts.

4. The silo cone shell reinforced concrete construction support structure according to claim 1 is characterized in that: The second embedded part is provided on the silo top cone shell, and the main support can be connected with the second embedded part by bolts.

5. The silo cone shell reinforced concrete construction support structure according to claim 1 is characterized in that: The warp secondary supports and the weft secondary supports are arranged perpendicularly.

Images