Thickness auxiliary positioning structure based on structure steel bar protective layer and construction framework of thickness auxiliary positioning structure

Abstract

The utility model discloses a thickness auxiliary positioning structure based on a structure steel bar protective layer and a construction framework thereof, and the thickness auxiliary positioning structure comprises a positioning bar body which is used for being fixed to a structure steel bar; and the two sets of high-strength plastic sheaths are fixed to the two ends of the positioning rib body in a one-to-one correspondence mode and used for abutting against the auxiliary positioning protection layer formwork. The problem that in the prior art, when the thickness of a steel bar protection layer is controlled through a concrete cushion block, the concrete cushion block is prone to being extruded and broken by an added mold, and consequently the thickness of the structure protection layer cannot be guaranteed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge and culvert engineering construction, and particularly relates to a thickness auxiliary positioning structure based on the reinforcement cover of a structure and its construction framework. Background Art

[0002] At present, with the increasing maturity of bridge construction technology, the requirements for various construction quality control indicators are also getting higher and higher. Among them, the control of the reinforcement cover is an important control parameter in bridge structure construction. The reinforcement cover directly affects the durability of the bridge structure and even the overall safety of the structure. If the reinforcement cover is too large, cracks are likely to occur on the concrete surface, affecting the structural safety. If the cover is too small, the reinforcement cannot be effectively protected, and corrosion of the reinforcement is likely to occur, accompanied by volume expansion, which will then break the concrete. After the concrete is damaged, it will accelerate the corrosion of the reinforcement, resulting in a vicious cycle of reinforcement corrosion - concrete damage - accelerated reinforcement corrosion.

[0003] During the existing construction process, concrete blocks are usually set between the reinforcement and the formwork to control the thickness of the reinforcement cover. The number of blocks arranged on the structural end face is usually not less than 4 per square meter. However, during the process of formwork extrusion, the current concrete blocks often break, resulting in the inability to ensure the thickness of the structure's reinforcement cover. Summary of the Utility Model

[0004] Therefore, the utility model provides a thickness auxiliary positioning structure based on the reinforcement cover of a structure and its construction framework to solve the technical problem in the prior art that when controlling the thickness of the reinforcement cover by concrete blocks, the concrete blocks are easily broken by formwork extrusion, resulting in the inability to ensure the thickness of the structure's reinforcement cover.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A thickness auxiliary positioning structure based on the reinforcement cover of a structure, comprising:

[0007] Positioning reinforcement bars, used for fixing to the reinforcement of the structure;

[0008] Two groups of high-strength plastic sheaths are provided, and the two groups of high-strength plastic sheaths are respectively fixedly sleeved at both ends of the positioning reinforcement bars in a one-to-one correspondence, and are used for abutting against and assisting in positioning the formwork for the reinforcement cover.

[0009] Based on the above technical solutions, the following further description is made for the utility model:

[0010] As a further solution of the utility model,

[0011] The positioning reinforcement bars are set as φ10 threaded steel bars.

[0012] As a further solution of the present utility model,

[0013] Both groups of the high-strength plastic sheaths are arranged as transparent plastic sheaths.

[0014] As a further solution of the present utility model,

[0015] The high-strength plastic sheath includes a base sheath and at least one group of equally spaced additional sheaths detachably and fixedly sleeved on the base sheath in sequence.

[0016] As a further solution of the present utility model,

[0017] The extended distances after each group of the equally spaced additional sheaths are sleeved in sequence are all equal.

[0018] A construction framework based on the steel bar protective layer of a structure includes the thickness auxiliary positioning structure based on the steel bar protective layer of the structure.

[0019] As a further solution of the present utility model, it further includes: a steel bar framework of the structure;

[0020] The positioning rib bodies are flush welded to the main bars of the steel bar framework of the structure.

[0021] As a further solution of the present utility model,

[0022] At least one group of opposite sides of the steel bar framework of the structure are respectively provided with protective layer templates;

[0023] The high-strength plastic sheaths at both ends of the positioning rib bodies respectively abut against the two groups of protective layer templates in a one-to-one correspondence.

[0024] The present utility model has the following beneficial effects:

[0025] This construction framework can wrap the two ends of the positioning rib bodies through the high-strength plastic sheaths, and flush weld the positioning rib bodies to the main bars of the steel bar framework of the structure. Furthermore, by making the two groups of high-strength plastic sheaths closely abut against the two side protective layer templates, the relative position stability between the steel bar framework of the structure and the protective layer templates is effectively ensured, the adverse effect of the traditional concrete cushion blocks being crushed by extrusion is avoided, the qualified rate of the steel bar protective layer is improved, and further the bearing capacity and durability of the structure are enhanced, having high popularization and application value. Description of the Drawings

[0026] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present invention.

[0027] Figure 1 FIG. is a schematic diagram of the overall structure of the thickness auxiliary positioning structure based on the steel bar protective layer of the structure provided in Embodiment 1 of the present invention.

[0028] Figure 2 FIG. is a schematic diagram of the overall application state structure of the thickness auxiliary positioning structure based on the steel bar protective layer of the structure and its construction framework provided in Embodiment 1 of the present invention.

[0029] Figure 3 FIG. is a schematic diagram of the overall structure of the thickness auxiliary positioning structure based on the steel bar protective layer of the structure provided in Embodiment 2 of the present invention.

[0030] In the drawings, the list of components represented by each reference numeral is as follows:

[0031] Positioning steel bar body 1;

[0032] High-strength plastic sheath 2, base sheath 21, equally spaced additional sheath 22;

[0033] Structure steel bar frame 3, main steel bar 31;

[0034] Protective layer formwork 4. Specific embodiments

[0035] The following specific embodiments illustrate the embodiments of the present invention. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work fall within the scope of protection of the present invention.

[0036] The terms such as "upper", "lower", "left", "right", "middle" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present invention.

[0037] Embodiment 1

[0038] As Figures 1 to 2 shown, the embodiment of the present utility model provides a thickness auxiliary positioning structure based on the steel bar protective layer of a structure and its construction framework. The thickness auxiliary positioning structure includes a positioning steel bar body 1 and a high-strength plastic sheath 2, which are used to wrap the two end parts of the positioning steel bar body 1 through the high-strength plastic sheath 2 and weld the positioning steel bar body 1 flush with the main steel bars 31 of the structure steel bar framework 3, thus effectively avoiding the adverse effects of the traditional concrete cushion blocks being crushed by extrusion, improving the qualification rate of the steel bar protective layer, and further enhancing the bearing capacity and durability of the structure, having high popularization and application value. The specific settings are as follows:

[0039] Please refer to Figure 1 , the positioning steel bar body 1 is set as a φ10 threaded steel bar; there are two groups of the high-strength plastic sheaths 2, and the two groups of the high-strength plastic sheaths 2 are respectively fixedly sleeved on the two end parts of the positioning steel bar body 1 in one-to-one correspondence, and the two groups of the high-strength plastic sheaths 2 are both set as transparent plastic sheaths, which are used to closely abut the two side protective layer templates 4 through the two groups of the high-strength plastic sheaths 2, thus effectively supporting and ensuring the relative position stability between the structure steel bar framework 3 and the protective layer template 4. At the same time, the high-strength plastic sheath 2 can effectively play a blocking and protective role against the protective layer template 4 based on the positioning steel bar body 1. In addition, after the pouring is completed, the overall repair is simple, no color difference will be formed, and it is more beneficial to ensure the appearance quality of the concrete structure.

[0040] Please refer to Figure 2 , the construction framework includes the above-mentioned thickness auxiliary positioning structure, the structure steel bar framework 3 and the protective layer template 4. The positioning steel bar body 1 is welded flush on the main steel bars 31 of the structure steel bar framework 3, and at least one group of opposite sides of the structure steel bar framework 3 are respectively provided with the protective layer templates 4; the high-strength plastic sheaths 2 at the two end parts of the positioning steel bar body 1 respectively abut the two groups of protective layer templates 4 in one-to-one correspondence.

[0041] Embodiment 2

[0042] In Embodiment 2, for the same structures as those in Embodiment 1, the same symbols are given and the same descriptions are omitted. Embodiment 2 makes improvements on the basis of Embodiment 1. Please refer to Figure 3 , the high-strength plastic sheath 2 includes a basic sheath 21 and at least one group of equally spaced additional sheaths 22 that are detachably and fixedly sleeved on the basic sheath 21 in sequence. The extended distances after each group of the equally spaced additional sheaths 22 are sleeved in sequence are all equal, which are used to make the high-strength plastic sheath 2 have a function of adjustable length, and can be more adapted to the distance between the two groups of protective layer templates 4 corresponding to different concrete protective layer thickness requirements, without repeatedly measuring and cutting steel bars of different lengths, effectively improving the overall construction efficiency and its functional practicability.

[0043] Although the present utility model has been described in detail above with general descriptions and specific embodiments, based on the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

Claims

1. An auxiliary positioning structure based on the thickness of the steel bar protective layer of the structure, characterized in that: include: Positioning bars, used to fix to the reinforcement of the structure; Two groups of high-strength plastic sheaths are provided, and the two groups of high-strength plastic sheaths are respectively and one by one fixedly sleeved on the two ends of the positioning rib body, and are used to abut against the auxiliary positioning protection layer template.

2. The auxiliary positioning structure based on the thickness of the steel bar protective layer of the structure according to claim 1 is characterized in that: The positioning reinforcement body is set to be φ10 threaded steel bar.

3. The auxiliary positioning structure based on the thickness of the steel bar protective layer of the structure according to claim 1 is characterized in that: The two groups of high-strength plastic sheaths are both configured as transparent plastic sheaths.

4. The auxiliary positioning structure based on the thickness of the steel bar protective layer of the structure according to claim 1 is characterized in that: The high-strength plastic sheath comprises a basic sheath and at least one group of equidistant additional sheaths which are detachably fixedly sleeved on the basic sheath in sequence.

5. The auxiliary positioning structure based on the thickness of the steel bar protective layer of the structure according to claim 4 is characterized in that: The extension distances of each group of equally spaced additional sheaths after they are successively sheathed are all equal.

6. A construction framework based on a steel reinforcement protective layer of a structure, characterized in that: It comprises an auxiliary positioning structure based on the thickness of the steel reinforcement protective layer of the structure as described in any one of claims 1 to 5.

7. The construction framework based on the steel reinforcement protective layer of the structure according to claim 6 is characterized in that: Also includes: Steel reinforcement frame of structures; The positioning reinforcement body is welded flush with the main reinforcement of the reinforcement frame of the structure.

8. The construction framework based on the steel reinforcement protective layer of the structure according to claim 7 is characterized in that: At least one set of opposite sides of the structure reinforcement frame is respectively provided with protective layer templates; The high-strength plastic sheaths at the two ends of the positioning rib body respectively abut against the two sets of protective layer templates in a one-to-one correspondence.

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