A visual steel bar protective layer pad and its construction method

Abstract

The present invention discloses a visible steel bar protective layer pad and a construction method thereof, and belongs to the field of reinforced concrete structure construction methods. The present invention discloses a visible steel bar protective layer pad, comprising a concrete pad and a reflector, wherein the reflector is arranged at the bottom of the concrete pad, and the concrete pad is engaged with the outside of the main reinforcement at the bottom of the beam, and the reflector is visible. The present invention solves the problem that the existing construction method cannot accurately identify the steel bar gap during the secondary reinforcement planting process, and the reinforcement planting drilling is easy to drill into the steel bar or damage the pipeline. When there is an obstacle of the steel bar, another position is usually selected for drilling, causing multiple damages in the same area. The present invention proposes a construction method for a visible steel bar protective layer pad, which judges the specific position of the steel bar at the bottom of the beam by visualizing the steel bar pad at the bottom of the beam. When the secondary structure is reinforced, it effectively avoids drilling into the main reinforcement, effectively avoids repeated damage to the same area caused by repeated drilling, and ensures the quality of the project.

Description

Technical Field

[0001] The present invention relates to the field of reinforced concrete structure construction methods, in particular to a visible steel bar protective layer pad and a construction method thereof. Background Art

[0002] At present, most building structures are frame structures and frame-shear wall structures with a large reinforcement ratio. Especially in the cross beam area, the steel bars are densely arranged and the placement of the steel bars is not necessarily very accurate. The steel bars of the secondary structure columns are usually constructed by secondary anchoring. During the anchoring process, the gaps between the steel bars cannot be accurately identified. The anchoring drilling holes can easily hit the steel bars or damage the pipelines. When there are obstacles from the steel bars, other locations are usually selected for drilling, causing multiple damages in the same area. The steel bars are damaged, which can easily cause the steel bars to be exposed and damp and affect the safety of the structure.

[0003] The Chinese patent number CN105350724A discloses a steel bar protective layer pad for construction and a construction method thereof. The invention discloses a steel bar protective layer pad for construction, comprising a support lower portion (3) and a support upper portion (1). The support lower portion (3) and the support upper portion (1) are integrally formed by casting concrete in a mold. The connecting surface between the support lower portion (3) and the support upper portion (1) is a parting surface (2). The support upper portion (1) is provided with two steel bar grooves (4) for accommodating steel bars, which are parallel to the parting surface (2) and intersect vertically. The two steel bar grooves (4) both penetrate the support upper portion (1) in the horizontal direction. , and the distances from the bottom of the two steel bar grooves (4) to the parting surface (2) are not equal; although the concrete used in the invention is fine stone concrete with a grade of C25 to C35 to ensure that it can withstand any trampling of construction workers at the construction site, as well as the impact force formed by the vertical pressure and lateral kinetic energy generated by the ground pump during the concrete pouring process, thereby avoiding water seepage at the pad, the invention cannot accurately identify the steel bar gap during the secondary reinforcement planting process, and the reinforcement planting drilling holes are very likely to drill into the steel bars or damage the pipelines. When there is a steel bar obstacle, another location is usually selected for drilling, causing multiple damages in the same area, damaging the steel bars, and easily causing the steel bars to be exposed and damp and affecting the structural safety. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for constructing a visible steel bar protective layer pad. By visualizing the steel bar pad at the bottom of the beam, the specific position of the steel bars at the bottom of the beam can be judged. When planting steel bars in the secondary structure, drilling into the main bars can be effectively avoided, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A visible steel bar protective layer pad comprises a concrete pad and a reflective sheet, wherein the reflective sheet is arranged at the bottom of the concrete pad, the concrete pad is clamped outside the main reinforcement at the bottom of the beam, and the reflective sheet is visible outside.

[0007] Preferably, the reflective sheet is arranged at the center of the bottom of the concrete pad. The reflective sheet is made of stainless steel and is T-shaped. The pointed end of the reflective sheet is embedded in the concrete pad.

[0008] Preferably, the concrete pad is a cylinder, and an arc-shaped groove is provided at the center of the upper surface of the concrete pad, and the arc-shaped groove is engaged with the main reinforcement at the bottom of the beam.

[0009] Preferably, the concrete pad is formed by pouring standard concrete, the thickness of the concrete pad is at least 50 mm, and the arc-shaped groove is only engaged directly below the main reinforcement at the bottom of the beam.

[0010] Preferably, the center of the part of the main reinforcement at the bottom of the beam that is engaged in the concrete pad is in a straight line with the center of the reflective sheet. There are at least two main reinforcements at the bottom of the beam, and there is a concrete pad engaged with the main reinforcement at the bottom of the beam at least every one meter. Each main reinforcement at the bottom of the beam is engaged with a concrete pad.

[0011] Preferably, the structural beam uses a reflective sheet to indicate the position of the main reinforcement at the bottom of the beam, so that when the secondary structure is planted with reinforcement, drilling holes for the main reinforcement at the bottom of the beam can be avoided.

[0012] Another technical problem to be solved by the present invention is to provide a method for constructing a visible steel bar protective layer pad, comprising the following steps:

[0013] S1: The reflector is made of stainless steel and is T-shaped. When prefabricating the concrete pad, the reflector is embedded in the bottom of the concrete pad, and the upper part is prefabricated into an arc-shaped groove according to the size of the main reinforcement at the bottom of the beam.

[0014] S2: When tying the reinforcement at the bottom of the structural beam, place the concrete pad just below the main reinforcement at the bottom of the beam, and completely press the main reinforcement at the bottom of the beam into the arc-shaped groove on the upper part of the concrete pad to prevent the concrete pad from separating from the main reinforcement at the bottom of the beam during concrete pouring.

[0015] S3: After the concrete pouring of the structural beam is completed and the formwork is removed, find the reflective sheet on the bottom surface of the structural beam. Draw the position of the main reinforcement at the bottom of the beam by connecting the centers of each reflective sheet. When planting the secondary structural reinforcement, avoid the main reinforcement at the bottom of the beam and drill holes to plant the reinforcement from the gaps between the main reinforcement at the bottom of the beam.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The visible steel bar protective layer pad and its construction method of the present invention have simple process and obvious effect. They can effectively identify the position of the steel bars at the bottom of the beam. The main bars will not be drilled when drilling holes for embedding steel bars in the secondary structure, avoiding repeated damage to the same area caused by repeated drilling, and ensuring the quality of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1Schematic diagram of a visible steel bar protective layer pad and a construction method thereof according to the present invention;

[0019] Figure 2 A side view of a concrete pad according to the present invention;

[0020] Figure 3 A bottom view of a visible steel bar protective layer pad of the present invention;

[0021] Figure 4 The figure is a side view of a visible steel bar protective layer pad of the present invention.

[0022] In the figure: 1. Concrete pad; 11. Arc-shaped groove; 2. Reflective sheet; 3. Main reinforcement at the bottom of the beam; 4. Structural beam. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] To resolve existing issues, see Figure 1 、 Figure 3 and Figure 4 , this embodiment provides the following technical solutions:

[0025] A visible steel bar protective layer pad includes a concrete pad 1 and a reflective sheet 2. The reflective sheet 2 is embedded in the bottom of the concrete pad 1. The concrete pad 1 is tightly clamped on the outside of the main reinforcement 3 at the bottom of the beam. After inversion, the reflective sheet 2 can be visible.

[0026] The reflective sheet 2 is set at the bottom center of the concrete pad 1. The reflective sheet 2 is made of stainless steel and has certain strength and oxidation resistance. The reflective sheet 2 is T-shaped, and the pointed end of the reflective sheet 2 is embedded in the concrete pad 1. The reflective sheet 2 is firmly connected to the concrete pad 1 to prevent displacement or falling off when pouring the concrete beam.

[0027] See also Figure 2 The concrete pad 1 is cylindrical in shape, and a circular arc groove 11 is opened at the center of the upper surface of the concrete pad 1. The circular arc groove 11 matches the size of the main reinforcement 3 at the bottom of the beam to ensure that the two are tightly engaged to prevent falling off or displacement.

[0028] The concrete pad 1 is formed by pouring standard concrete of the construction beam. The thickness of the concrete pad 1 is at least 50 mm, with strong density and certain waterproof and moisture-proof properties. The thickness is moderate and not easy to crack. The arc-shaped groove 11 is only engaged directly below the main reinforcement 3 at the bottom of the beam and is not suitable for the stirrups at the bottom of the beam.

[0029] See also Figure 1 — Figure 4 The center of the part of the main reinforcement 3 at the bottom of the beam that is engaged in the concrete pad 1 is in a straight line with the center of the reflective sheet 2 to ensure that the main reinforcement 3 at the bottom of the beam is accurately found after the pouring is completed. Several main reinforcements 3 at the bottom of the beam are arranged at standard intervals. There is at least one concrete pad 1 engaged with the main reinforcement 3 at the bottom of the beam every one meter. Each main reinforcement 3 at the bottom of the beam is engaged with a concrete pad 1, which better protects the main reinforcement 3 at the bottom of the beam.

[0030] The structural beam 4 finds the position of the main reinforcement 3 at the bottom of the beam by connecting the straight line through the position displayed by the reflective sheet 2, so that the main reinforcement 3 at the bottom of the beam can be effectively avoided when drilling when planting the secondary structure reinforcement.

[0031] In order to better demonstrate a construction process of a visible steel bar protective layer pad, this embodiment now proposes the following steps:

[0032] Step 1: Use stainless steel material to make a T-shaped reflective sheet 2. When prefabricating the concrete pad 1, embed the reflective sheet 2 into the center position of the bottom of the concrete pad 1, and prefabricate the upper part of the concrete pad 1 into an arc-shaped groove 11 according to the size and shape of the main reinforcement 3 at the bottom of the beam.

[0033] Step 2: When tying the steel bars at the bottom of the structural beam 4, place the concrete pad 1 directly below the main reinforcement 3 at the bottom of the beam, and press the main reinforcement 3 at the bottom of the beam completely into the arc-shaped groove 11 on the upper part of the concrete pad 1, so as to prevent the concrete pad 1 and the main reinforcement 3 at the bottom of the beam from separating, falling off or shifting during concrete pouring.

[0034] Step 3: After the concrete pouring of the structural beam 4 is completed and the formwork is removed, find the reflective sheet 2 on the bottom surface of the structural beam 4, and draw the position of the main reinforcement 3 at the bottom of the beam by connecting the center position of each reflective sheet 2. When planting the secondary structure reinforcement, avoid the position of the main reinforcement 3 at the bottom of the beam, and drill holes in the gaps between the main reinforcement 3 at the bottom of the beam to plant the reinforcement.

[0035] To sum up: the present invention proposes a method for constructing a visible steel bar protective layer pad, which has a simple construction process and obvious construction effect. The position of the main reinforcement 3 at the bottom of the beam can be effectively identified through the reflective sheet 2, so that the main reinforcement 3 at the bottom of the beam will not be drilled when drilling holes for embedding reinforcement in the secondary structure, thereby avoiding repeated damage to the same area caused by repeated drilling and ensuring the quality of the construction project.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A visible steel bar protective layer pad, comprising a concrete pad (1) and a reflective sheet (2), characterized in that: The reflective sheet (2) is arranged at the bottom of the concrete pad (1), the concrete pad (1) is engaged with the outside of the main reinforcement (3) at the bottom of the beam, and the reflective sheet (2) is exposed; the reflective sheet (2) is arranged at the center position of the bottom of the concrete pad (1), the reflective sheet (2) is made of stainless steel, the reflective sheet (2) is T-shaped, and the pointed end of the reflective sheet (2) is embedded in the concrete pad (1); the concrete pad (1) is a cylinder, and the center position of the upper surface of the concrete pad (1) is provided with an arc-shaped groove (11), and the arc-shaped groove (11) is engaged with the main reinforcement (3) at the bottom of the beam; the concrete pad (1) is made of standard Quasi-concrete pouring molding, the concrete pad (1) has a thickness of at least 50 mm, and the arc-shaped groove (11) is only engaged directly below the beam bottom main reinforcement (3); the center of the portion of the beam bottom main reinforcement (3) engaged in the concrete pad (1) is in a straight line with the center of the reflective sheet (2), at least two beam bottom main reinforcements (3) are provided, and at least one concrete pad (1) is engaged with the beam bottom main reinforcement (3) every one meter, and each beam bottom main reinforcement (3) is engaged with a concrete pad (1); the position of the beam bottom main reinforcement (3) is revealed by the reflective sheet (2), so that when the secondary structure is planted, the drilling of the beam bottom main reinforcement (3) is avoided.

2. A construction method of a visible steel bar protective layer pad according to claim 1, characterized in that: The following steps are involved: S1: A reflective sheet (2) is made of stainless steel. The reflective sheet (2) is in a T-shape. When prefabricating the concrete pad (1), the reflective sheet (2) is embedded in the bottom of the concrete pad (1). The upper portion is prefabricated according to the size of the main reinforcement (3) at the bottom of the beam to form an arc-shaped groove (11); S2: When tying the bottom reinforcement of the structural beam (4), the concrete pad (1) is placed directly below the main reinforcement (3) at the bottom of the beam, and the main reinforcement (3) at the bottom of the beam is completely pressed into the upper arc-shaped groove (11) of the concrete pad (1), so as to prevent the concrete pad (1) from being separated from the main reinforcement (3) at the bottom of the beam during concrete pouring; S3: After the concrete pouring of the structural beam (4) is completed and the formwork is removed, the reflective sheet (2) on the bottom surface of the structural beam (4) is found, and the position of the main reinforcement (3) at the bottom of the beam is drawn by connecting the centers of each reflective sheet (2). When planting the secondary structural reinforcement, avoid the main reinforcement (3) at the bottom of the beam and drill holes to plant the reinforcement from the gaps between the main reinforcement (3) at the bottom of the beam.

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