Steel jacket box structure of box-type structure wall-clamping concrete

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By adopting a steel box structure with a wall concrete with a box-shaped structure, the use of cavity columns reduces the amount of concrete, which solves the problems of large concrete usage, high cost and complex construction in traditional methods, and improves the economics of the structure and construction efficiency. .

CN222435081UInactive Publication Date: 2025-02-07CCCC SHEC FOURTH ENG

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Patent Information

Application Number: CN202420794351.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-04-17
Publication Date: 2025-02-07
Estimated Expiration: Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, the double-wall steel case is filled with water to protect the wall panels in the wall under large water depth conditions. If the water injection height is too large, the inner wall panel will be damaged. In addition, the traditional method uses a large amount of concrete, high cost, and complex construction operations.

Method used

The steel-seamed box structure adopts box-shaped structure wall concrete, including spaced wall panels, compartment plates and steel-seamed box sections. A concrete layer is poured in the steel-seamed box section, and a cavity column is provided in the concrete layer to reduce the amount of concrete And improve the economics of the structure and construction efficiency.

Benefits of technology

While ensuring the structure's load-bearing capacity, the concrete usage is significantly reduced, 30-50% of concrete is saved, the construction cost is reduced, construction operations are simplified, and on-site construction efficiency is improved.

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Abstract

The utility model discloses a steel jacket box structure of box type structure sandwich wall concrete, belongs to the technical field of building structures, and solves the technical problems of large concrete consumption, high manufacturing cost and complex construction operation in the prior art. The utility model discloses a steel jacket box structure of box-type structure sandwich wall concrete, which comprises a pair of wall plates distributed at intervals and a plurality of bulkheads distributed between the pair of wall plates at intervals along the length direction of the wall plates, a steel jacket box section is enclosed by the pair of wall plates and two adjacent bulkheads, a concrete layer is poured in the steel jacket box section, and the steel jacket box section is provided with a steel jacket box body. And a plurality of cavity columns are arranged in the concrete layer. According to the utility model, the structure safety can be effectively ensured, and the cost is saved.

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Description

Technical Field

[0001] The utility model belongs to the technical field of building structures, and in particular relates to a steel jacket box structure of a box-type structure sandwiched with concrete walls. Background Art

[0002] In the prior art, the construction of bridge piers located in rivers, lakes, and oceans often uses a method of pouring sandwich concrete with double-walled steel casings to meet the casing lowering requirements and improve the overall stiffness and strength of the wall structure. However, under conditions of greater water depth (such as ≥20m), water injection into the sandwich wall can only protect the wall panels within a certain water depth range from damage by lateral water pressure. If the water injection height is too large, the inner wall panels will be damaged due to excessive water pressure inside the sandwich wall. Therefore, for double-walled steel casings in ultra-high water depths, sandwich concrete needs to be poured to improve the stiffness and strength of the wall. The wall of the steel box is mainly affected by the hydrostatic pressure caused by the head difference between the inside and outside of the cofferdam. The traditional double-walled steel box is filled with concrete between the inner and outer wall panels. The concrete, vertical secondary beams and wall panels form a similar reinforced concrete section. For the double-reinforced concrete section with symmetrically arranged steel bars, there is no difference between the box section and the rectangular section in bending bearing capacity, and the corresponding strength can be provided without full concrete filling. Therefore, the traditional steel box is relatively wasteful in the use of sandwich concrete, which increases the construction cost.

[0003] Therefore, providing a steel box structure with sandwich wall concrete, which has low concrete consumption, low cost and simple construction operation, has become a technical problem that needs to be solved urgently by technicians in the relevant technical field. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a steel box structure with box-type structure sandwiched wall concrete, so as to solve the technical problems of large amount of concrete, high cost and complicated construction operation in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] The utility model discloses a box-type structure sandwiched concrete steel box structure, comprising a pair of spaced wall panels, a plurality of bulkhead panels spaced between the pair of wall panels along the length direction of the wall panels, a pair of wall panels and two adjacent bulkhead panels together forming a steel box section, a concrete layer is poured in the steel box section, and a plurality of cavity columns are arranged in the concrete layer.

[0007] In some implementation schemes of the present invention, a plurality of horizontal cross braces are provided between two wall panels.

[0008] In some implementation schemes of the utility model, at least one cavity column is distributed between two adjacent horizontal cross braces at the same horizontal elevation.

[0009] In some implementation schemes of the utility model, a horizontal ring plate with a width of 450 mm is provided in the steel casing section.

[0010] In some embodiments of the present invention, the cavity column is located in the horizontal ring plate.

[0011] In some embodiments of the present invention, the horizontal cross brace is a truss-type or Bailey-type structure.

[0012] In some embodiments of the present invention, the cavity column is cylindrical or straight prism-shaped.

[0013] In some embodiments of the present invention, a plurality of vertical secondary beams are evenly distributed on the inner side of the wall panel along its length direction.

[0014] In some implementation schemes of the present invention, the steel casing section has a length of 6 m, a width of 2.2 m, and a height of 42.75 m.

[0015] In some implementation schemes of the utility model, adjacent steel casing sections are separated by a common bulkhead.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model has the advantages of simple structure, scientific and reasonable design, convenient use, effective guarantee of structural safety and cost saving.

[0018] The utility model makes full use of the synergistic force of steel structure and concrete, and greatly reduces the amount of concrete without affecting the bearing capacity of the structure: for the usual double-arm steel box, when the sandwich wall concrete is changed from a solid structure to a hollow box structure, the amount of concrete can be saved by 30-50%, and the loss of the bending bearing capacity of the positive section does not exceed 10%. Therefore, the utility model can significantly reduce the cost while retaining the functions of the traditional structure.

[0019] The efficiency of on-site construction is improved. Before pouring concrete, it is only necessary to put the cavity column between the horizontal cross braces and fix it, and then pour the sandwich concrete between the inner and outer wall panels and the formwork to complete the construction, which reduces the concrete pouring time.

[0020] The overall weight of the structure is reduced, so that some construction methods that can only be cast on site can be changed to prefabricated installation; some sections of sandwich concrete can be changed from on-site casting to prefabrication

[0021] By changing the solid concrete section into a hollow concrete section, the sandwich concrete is prevented from becoming a large-volume concrete. The heat dissipation area of the concrete is increased, and there is no need to implement temperature control measures for large-volume concrete. The construction operation is simpler and the risk of reduced overall structural strength due to inadequate temperature control of large-volume concrete is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model.

[0023] Figure 2 This is another structural schematic diagram of the utility model.

[0024] Figure 3 This is a schematic diagram of the third structure of the utility model;

[0025] Figure 4 It is a cross-sectional view of the utility model.

[0026] The names corresponding to the reference numerals are:

[0027] 1- wall plate, 2- bulkhead plate, 3- steel box section, 4- concrete layer, 5- cavity column, 6- vertical secondary beam, 7- horizontal cross brace, 8- horizontal ring plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] like Figure 1-4 As shown, the box-type structure sandwich wall concrete steel jacket box structure provided by the utility model includes a pair of spaced wall panels 1, a plurality of bulkhead plates 2 spaced between the pair of wall panels 1 along the length direction of the wall panels 1, a pair of wall panels 1 and two adjacent bulkhead plates 2 are jointly arranged to form a steel jacket box section 3, a concrete layer 4 is cast in the steel jacket box section 3, and a plurality of cavity columns 5 are arranged in the concrete layer 4.

[0031] The utility model greatly reduces the amount of concrete while ensuring that the structural force-bearing capacity is not affected; the construction operation is relatively simple (only the template of the cavity column needs to be prefabricated in advance and lowered during construction); and the temperature control measures required for large-volume concrete and the negative impact caused by inadequate temperature control measures are avoided.

[0032] Example 2

[0033] like Figure 1-4As shown, the box-type structure sandwich wall concrete steel jacket box structure provided by the utility model includes a pair of spaced wall panels 1, a plurality of bulkhead plates 2 spaced between the pair of wall panels 1 along the length direction of the wall panels 1, a pair of wall panels 1 and two adjacent bulkhead plates 2 are jointly arranged to form a steel jacket box section 3, a concrete layer 4 is cast in the steel jacket box section 3, and a plurality of cavity columns 5 are arranged in the concrete layer 4.

[0034] A plurality of horizontal cross braces 7 are arranged between the two wall panels 1 , and at least one cavity column 5 is distributed between two adjacent horizontal cross braces 7 at the same horizontal elevation.

[0035] This embodiment 2 provides a more preferred structure based on the embodiment 1, that is, a plurality of horizontal cross braces 7 are arranged between the two wall panels 1, and at least one cavity column 5 is distributed between two adjacent horizontal cross braces 7 of the same horizontal elevation. Before pouring horizontal concrete, the utility model only needs to put the cavity column between the horizontal cross braces and fix it, and pour the sandwich wall concrete between the inner and outer wall panels and the cavity column to complete the construction.

[0036] Example 3

[0037] like Figure 1-4 As shown, the box-type structure sandwich wall concrete steel jacket box structure provided by the utility model includes a pair of spaced wall panels 1, a plurality of bulkhead plates 2 spaced between the pair of wall panels 1 along the length direction of the wall panels 1, a pair of wall panels 1 and two adjacent bulkhead plates 2 are jointly arranged to form a steel jacket box section 3, a concrete layer 4 is cast in the steel jacket box section 3, and a plurality of cavity columns 5 are arranged in the concrete layer 4.

[0038] A plurality of horizontal cross braces 7 are arranged between the two wall panels 1, and at least one cavity column 5 is arranged between two adjacent horizontal cross braces 7 of the same horizontal elevation. A horizontal ring plate 8 with a width of 450 mm is arranged in the steel casing section 3. The cavity column 5 is located in the horizontal ring plate 8.

[0039] This embodiment 3 provides a more preferred structure based on the embodiment 2, wherein a horizontal ring plate 8 with a width of 450 mm is provided in the steel casing section 3. The cavity column 5 is located in the horizontal ring plate 8. This embodiment makes the overall structure more stable by providing the horizontal ring plate.

[0040] Example 4

[0041] like Figure 1-4 As shown, the box-type structure sandwich wall concrete steel jacket box structure provided by the utility model includes a pair of spaced wall panels 1, a plurality of bulkhead plates 2 spaced between the pair of wall panels 1 along the length direction of the wall panels 1, a pair of wall panels 1 and two adjacent bulkhead plates 2 are jointly arranged to form a steel jacket box section 3, a concrete layer 4 is cast in the steel jacket box section 3, and a plurality of cavity columns 5 are arranged in the concrete layer 4.

[0042] A plurality of horizontal cross braces 7 are arranged between the two wall panels 1, and at least one cavity column 5 is arranged between two adjacent horizontal cross braces 7 of the same horizontal elevation. A horizontal ring plate 8 with a width of 450 mm is arranged in the steel casing section 3. The cavity column 5 is located in the horizontal ring plate 8.

[0043] The horizontal cross brace 7 is a truss structure; the cavity column 5 is cylindrical;

[0044] Or the horizontal cross brace 7 is a Bailey structure; the cavity column 5 is a straight prism shape.

[0045] This embodiment 4 provides a more preferred structure of horizontal cross braces and cavity columns on the basis of embodiment 3; when the horizontal cross brace 7 is a truss structure, the cavity column 5 is cylindrical. Different from the solid sandwich concrete of the traditional steel jacket, the box-type sandwich concrete steel jacket will place a cylindrical cavity column between the truss-type horizontal cross braces, and then pour concrete between the inner and outer wall panels and the cavity column to form a hollow box-like concrete structure. In order to facilitate the pouring of box-type sandwich concrete, the horizontal cross brace within the sandwich concrete range can also be changed from a truss type to a Bailey type, and the template is placed in the diamond-shaped space formed by the horizontal cross brace. In this way, the template is more convenient to place and the operation is simpler. The hollow area of the sandwich concrete is larger, and more concrete can be saved compared to the truss type.

[0046] Example 5

[0047] like Figure 1-4 As shown, the box-type structure sandwich wall concrete steel jacket box structure provided by the utility model includes a pair of spaced wall panels 1, a plurality of bulkhead plates 2 spaced between the pair of wall panels 1 along the length direction of the wall panels 1, a pair of wall panels 1 and two adjacent bulkhead plates 2 are jointly arranged to form a steel jacket box section 3, a concrete layer 4 is cast in the steel jacket box section 3, and a plurality of cavity columns 5 are arranged in the concrete layer 4.

[0048] A plurality of horizontal cross braces 7 are arranged between the two wall panels 1, and at least one cavity column 5 is arranged between two adjacent horizontal cross braces 7 of the same horizontal elevation. A horizontal ring plate 8 with a width of 450 mm is arranged in the steel casing section 3. The cavity column 5 is located in the horizontal ring plate 8.

[0049] The horizontal cross brace 7 is a truss structure; the cavity column 5 is cylindrical;

[0050] Or the horizontal cross brace 7 is a Bailey structure; the cavity column 5 is a straight prism shape.

[0051] A plurality of vertical secondary beams 6 are evenly distributed along the length direction of the inner side of the wall panel 1; the length of the steel box section 3 is 6m, the width is 2.2m, and the height is 42.75m; adjacent steel box sections 3 are separated by a common bulkhead 2.

[0052] This embodiment 5 provides a more preferred structure based on embodiment 4: a number of vertical secondary beams 6 are evenly distributed along the length direction of the inner side of the wall panel 1; the steel casing section 3 is 6m long, 2.2m wide and 42.75m high; adjacent steel casing section 3 are separated by a common bulkhead 2.

[0053] The construction process of this utility model is as follows:

[0054] 1. Remove the drilling platform and suck mud and level the riverbed at the cofferdam location;

[0055] 2. Use two crane ships to lift the two cofferdams upstream and downstream of the bottom section;

[0056] 3. After the floating splicing is completed, the remaining walls of the high steel casing are connected symmetrically in blocks and the internal supports are installed. Before the installation of the last wall section, the hanging system is installed. During the wall installation, the local box-type structure sandwich wall concrete is poured;

[0057] 4. Synchronously and symmetrically fill the cofferdam with water and sink it, pay attention to the stress of the cofferdam, determine whether it is necessary to pour the cofferdam concrete, and complete the cofferdam bed;

[0058] 5. After the cofferdam is planted, the mud is sucked symmetrically and evenly sunk. At the same time, the box-type structure sandwich concrete is poured according to the cofferdam sinking and stress conditions until it sinks to the designed elevation;

[0059] 6. Take soil and dredge the cofferdam, clean the steel casing, build the bottom sealing platform, and pour the bottom sealing concrete in batches and compartments;

[0060] 7. After the bottom concrete reaches the designed strength, pump out the water, cut off the steel casing, chisel off the pile head, and cast the foundation.

[0061] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, but not to limit it, and certainly not to limit the patent scope of the present invention. Any changes or modifications that are made to the main design concept and spirit of the present invention without any substantial meaning, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention; in addition, the direct or indirect application of the technical solution of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. The steel box structure with box-type structure sandwich wall concrete is characterized by: The invention comprises a pair of wall panels (1) arranged at intervals, a plurality of bulkhead panels (2) arranged at intervals between the pair of wall panels (1) along the length direction of the wall panels (1), a steel casing section (3) formed by the pair of wall panels (1) and two adjacent bulkhead panels (2), a concrete layer (4) poured in the steel casing section (3), and a plurality of cavity columns (5) arranged in the concrete layer (4).

2. The steel-jacketed box structure of box-type structure sandwich wall concrete according to claim 1 is characterized in that: A plurality of horizontal cross braces (7) are arranged between the two wall panels (1).

3. The steel box structure of box-type structure sandwich wall concrete according to claim 2 is characterized in that: At least one cavity column (5) is distributed between two adjacent horizontal cross braces (7) at the same horizontal elevation.

4. The steel box structure of box-type structure sandwich wall concrete according to claim 2 is characterized in that: A horizontal ring plate (8) with a width of 450 mm is arranged inside the steel casing section (3).

5. The steel-jacketed box structure of box-type structure sandwiched concrete according to claim 4 is characterized in that: The cavity column (5) is located inside the horizontal ring plate (8).

6. The steel-jacketed box structure of box-type structure sandwiched concrete according to claim 2 is characterized in that: The horizontal cross brace (7) is a truss type or Bailey type structure.

7. The steel-jacketed box structure of box-type structure sandwich wall concrete according to claim 1 is characterized in that: The cavity column (5) is cylindrical or straight prism-shaped.

8. The steel box structure of box-type structure sandwich wall concrete according to claim 1 is characterized in that: A plurality of vertical secondary beams (6) are evenly distributed on the inner side of the wall panel (1) along its length direction.

9. The steel-jacketed box structure of box-type structure sandwich wall concrete according to claim 1 is characterized in that: The steel casing section (3) is 6m long, 2.2m wide and 42.75m high.

10. The steel-jacketed box structure of box-type structure sandwiched concrete according to claim 1, characterized in that: Adjacent steel casing sections (3) are separated by a common bulkhead (2).