External pressure resistant steel plate lining structure

Abstract

The utility model provides an external pressure resistant steel plate lining structure which comprises a plurality of sections of steel plate linings, stiffening rings surrounding in the circumferential direction are respectively fixed outside each section of steel plate lining, a plurality of circles of short channel steel groups are welded on the surface of each steel plate lining, and a plurality of short channel steel sections are arranged in each circle of short channel steel group. Open grooves of the short channel steel sections face the axial direction of the steel plate lining, a first annular steel bar is fixed to each circle of short channel steel set, the first annular steel bars penetrate through the open grooves, longitudinal steel bars are fixed to the short channel steel sections located on the same axis, and concrete is poured outside the steel plate lining. The short channel steel set, the first annular steel bars and the longitudinal steel bars are all located in the concrete, the short channel steel sections are welded to the surface of the steel plate lining, the short channel steel sections are used for pulling the periphery of the steel plate lining, and therefore the external pressure resistance of the steel plate lining structure is enhanced. The channel steel is conventional profile steel easy to purchase, can effectively solve the problem of external pressure resistance of the steel plate lining, and is economical in price and convenient to construct.

Description

Technical Field

[0001] The utility model relates to the technical field of steel plate linings, and in particular to a steel plate lining structure resistant to external pressure. Background Art

[0002] Lining structures include steel plate lining, reinforced concrete lining or concrete lining. Although steel plate lining has good anti-seepage performance, it is a permanent structure and is prone to buckling failure under high external water pressure. In the design of water supply systems, steel plate lining is often used as the corresponding structural form, such as steel pipes, gradient steel lining (as a permanent structure without dismantling formwork) and gate slot structure, etc., to meet functional requirements such as resistance to internal pressure and impact resistance. However, due to the inherent characteristics of steel plate lining, which has strong resistance to internal pressure and weak resistance to external pressure, its stability requirement for resistance to external pressure is a factor that cannot be ignored in the design of steel plate lining.

[0003] The external pressure resistance and stability design usually sets stiffening rings on the outside of the steel plate lining and welds them to the steel plate lining to increase its own rigidity, so as to achieve the purpose of resisting external pressure. Usually, several sections of steel plate lining that can be assembled are customized in the factory according to the design requirements, and stiffening rings are welded on the outside of each section of steel plate. Several sections of steel plate lining welded with stiffening rings are transported to the site for installation. If it is found during the installation process that the steel lining is insufficient to resist external pressure, although adding stiffening rings can solve the problem, it is difficult to weld some special-shaped linings, which is time-consuming and labor-intensive. In addition, for some projects, it is difficult to add stiffening rings or adding stiffening rings conflicts with other structures (such as external steel bars of steel plate lining, etc.). Therefore, other ways need to be considered to solve the problem of steel plate lining resistance to external pressure. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a steel plate lining structure resistant to external pressure, which can solve the problem of insufficient external pressure resistance of the steel plate lining structure.

[0005] To this end, the utility model adopts the following technical solutions:

[0006] A steel plate lining structure resistant to external pressure comprises several sections of steel plate lining, each section of the steel plate lining is respectively fixed with a circumferentially surrounding stiffening ring, several circles of short channel steel groups are welded to the surface of the steel plate lining, each circle of the short channel steel group comprises several short channel steel sections, the short channel steel sections are connected with structural steel bars, concrete is poured on the outside of the steel plate lining, and the short channel steel groups and the structural steel bars are both located inside the concrete.

[0007] On the basis of adopting the above technical solutions, the present invention can also adopt the following further technical solutions, or use these further technical solutions in combination:

[0008] The structural reinforcement includes several circles of first annular reinforcement arranged along the circumference of the steel plate lining, and also includes several longitudinal reinforcements arranged along the axial direction of the steel plate lining. The longitudinal reinforcements are hooped on the upper sides of several short channel steel sections located on the same axis, and the opening grooves of the short channel steel sections face the axial direction of the steel plate lining. A circle of the first annular reinforcement is respectively passed through the opening grooves of each circle of the short channel steel group.

[0009] The first annular steel bar is clamped to the flange of the short channel steel section away from the steel plate lining.

[0010] The structural reinforcement also includes a plurality of circles of second annular reinforcement arranged along the circumference of the steel plate lining, and the second annular reinforcement is tied to the inner side of the longitudinal reinforcement close to the steel plate lining.

[0011] A through hole is provided in the middle of the waist plate of the short channel steel section.

[0012] Compared with the prior art, the utility model has the following advantages and beneficial effects: short channel steel sections are welded on the surface of the steel plate lining, and the outer wall of the steel plate lining is pulled by the short channel steel sections, thereby enhancing the ability of the steel plate lining structure to resist external pressure; the channel steel is a conventional steel section that is easy to purchase, which can effectively solve the problem of the steel plate lining resisting external pressure, and it is economical and easy to construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a longitudinal section view of the steel plate lining structure of the utility model.

[0014] Figure 2 For this utility model Figure 1 Sectional view and local details at AA in the middle.

[0015] Figure 3 It is a three-dimensional schematic diagram of the short channel steel section of the utility model.

[0016] Figure 4 This is a diagram showing the relationship between the positions of the short channel steel sections and the structural steel bars of the utility model.

[0017] Figure 5 For this utility model Figure 4 Cross-sectional view at point aa in the middle. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the preferred implementation scheme of the present utility model is described below in conjunction with specific embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent elements with the same or similar functions. However, it should be understood that the accompanying drawings are only used for illustrative purposes and cannot be understood as limitations on the present utility model. In order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted, and the positional relationship described in the accompanying drawings is only used for illustrative purposes and cannot be understood as limitations on the present utility model.

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0020] The utility model provides a steel plate lining structure resistant to external pressure, comprising a plurality of sections of steel plate lining 1, each section of the steel plate lining 1 is respectively fixed with a circumferentially surrounding stiffening ring 3, a plurality of circles of short channel steel groups 2 are welded on the surface of the steel plate lining 1, each circle of the short channel steel group 2 comprises a plurality of short channel steel sections 21, the short channel steel sections 21 are connected with structural steel bars 6, concrete 8 is poured on the outside of the steel plate lining 1, and the short channel steel groups 2 and the structural steel bars 6 are both located inside the concrete 8.

[0021] The distance between two adjacent circles of short channel steel groups 2 and the distance between two adjacent short channel steel segments 21 in each circle of short channel steel group 2 are determined based on design calculations.

[0022] The flange of the short channel steel section 21 on one side of the steel plate lining 1 is welded to the steel plate lining 1 by fillet welding 9 , and the outer surface of the steel plate lining 1 needs to be polished and derusted before welding.

[0023] The structural reinforcement 6 includes several circles of first annular reinforcement 4 arranged along the circumference of the steel plate lining 1, and also includes several longitudinal reinforcement 5 arranged along the axial direction of the steel plate lining 1. The longitudinal reinforcement 5 is hooped on the upper side of several short channel steel sections 21 located on the same axis, and the opening grooves of the short channel steel sections 21 face the axial direction of the steel plate lining 1. A circle of first annular reinforcement 4 is respectively penetrated in the opening groove of each circle of short channel steel group 2.

[0024] The first annular reinforcement 4 is clamped to the flange of the short channel steel section 21 away from the steel plate lining 1 .

[0025] The structural reinforcement 6 also includes a plurality of circles of second annular reinforcement 10 arranged along the circumference of the steel plate lining 1 . The second annular reinforcement 10 is tied to the inner side of the longitudinal reinforcement 5 close to the steel plate lining 1 .

[0026] A through hole 7 is provided in the middle of the waist plate of the short channel steel section 21. The through hole 7 is a mortar threading hole for ensuring that the concrete 8 is in close contact with the short channel steel section 21 after pouring.

[0027] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the steel plate lining structure of the utility model that resists external pressure, and can produce the positive effects recorded in the utility model.

[0028] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two mechanisms, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the mechanism or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are also used only for the simplicity of description, and do not indicate or imply relative importance.

[0030] Furthermore, in practicing the claims of the present invention, those skilled in the art may understand and affect variations to the disclosed embodiments by studying the drawings, disclosure, and appended claims. In addition, in the claims and the specification, words such as "comprises", "comprising", etc. do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0031] The above is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention and will not be listed one by one here.

Claims

1. A steel plate lining structure resistant to external pressure, comprising a plurality of steel plate lining sections (1), each of the steel plate lining sections (1) being respectively fixed with a circumferentially surrounding stiffening ring (3) on the outside, characterized in that: A plurality of short channel steel groups (2) are welded to the surface of the steel plate lining (1), each of the short channel steel groups (2) comprising a plurality of short channel steel segments (21), the short channel steel segments (21) enclosing structural steel bars (6), the outside of the steel plate lining (1) is poured with concrete (8), and the short channel steel groups (2) and the structural steel bars (6) are both located inside the concrete (8).

2. The steel plate lining structure resistant to external pressure as claimed in claim 1, characterized in that: The structural steel bars (6) include a plurality of circles of first annular steel bars (4) arranged along the circumference of the steel plate lining (1), and also include a plurality of longitudinal steel bars (5) arranged along the axial direction of the steel plate lining (1), the longitudinal steel bars (5) being fixed on a plurality of the short channel steel segments (21) located on the same axis, the opening grooves of the short channel steel segments (21) facing the axial direction of the steel plate lining (1), and a circle of the first annular steel bars (4) being respectively penetrated in the opening groove of each circle of the short channel steel group (2).

3. The steel plate lining structure resistant to external pressure as claimed in claim 2, characterized in that: The first annular steel bar (4) is clamped to the flange of the short channel steel section (21) on a side away from the steel plate lining (1).

4. The steel plate lining structure resistant to external pressure as claimed in claim 1, characterized in that: The structural reinforcement (6) further comprises a plurality of rings of second annular reinforcement (10) arranged along the circumference of the steel plate lining (1), wherein the second annular reinforcement (10) is located inside the longitudinal reinforcement (5).

5. The steel plate lining structure resistant to external pressure as claimed in claim 1, characterized in that: A through hole (7) is provided in the middle of the waist plate of the short channel steel section (21).

Images