Concrete defect and void detection model
By designing a concrete defect de-empty detection model including reinforced concrete carrier and built-in defect unit, the problem of difficulty in preparing concrete models with various types of defects in the prior art is solved, and effective detection and verification of concrete defects is achieved.
Patent Information
- Application Number
- CN202420684973.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-03
AI Technical Summary
It is difficult to prepare concrete models with various types of defects in the prior art for detecting defects in concrete.
A concrete defect de-emphasis detection model was designed, including a reinforced concrete carrier and a built-in defect unit. The reinforced concrete carrier has built-in two layers of bidirectional steel mesh, and the defect unit is suspended through hanging hanging parts.
A concrete model that simulates various types of defects is provided to help detectors compare the detection defects with pre-recorded defect units locations and types to verify the correlation between detection characteristics and actual defects, providing valuable data and experience.
Smart Images
Figure CN222704398U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of preparation of concrete defect samples, in particular to a concrete defect void detection model. Background Art
[0002] Concrete is one of the most important structural materials in dam engineering construction. Due to lax design and construction quality control, natural disasters or structural aging, concrete structures will inevitably have damages such as cracks, honeycombs, overhead cracks, cold joints, etc. during construction and use, endangering the safety of the entire structure.
[0003] At present, physical testing method as a non-destructive testing method has been widely used in the detection of concrete engineering quality. It is a method to obtain concrete physical parameters and internal defects based on the waveform, frequency, phase and time characteristics of elastic waves or electromagnetic waves in concrete.
[0004] In order to train relevant inspection personnel, it is necessary to prepare concrete models with various types of defects for inspection personnel to conduct trial inspections and research. Utility Model Content
[0005] The utility model aims to provide a concrete defect and void detection model to solve the technical problem of how to prepare a concrete model with various types of defects.
[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:
[0007] A concrete defect void detection model comprises: a reinforced concrete carrier, at least one defect unit is pre-buried inside the reinforced concrete carrier, and two layers of bidirectional steel mesh are built in the reinforced concrete carrier.
[0008] Further, the defective unit includes a first container, and the first container is hollow.
[0009] Furthermore, the defective unit includes a second container and a filler, and the filler fills the interior of the second container.
[0010] Furthermore, the reinforced concrete carrier and the defect unit are both in a flat three-dimensional rectangular shape.
[0011] Furthermore, the length of the reinforced concrete carrier is 3200 mm, the width is 2000 mm, and the thickness is 400 mm, and the material of the reinforced concrete carrier is C40 concrete.
[0012] Furthermore, the length of the defect unit is 300-550 mm, the width is 300-550 mm, and the thickness is 6-30 mm. The depth of the defect unit inside the reinforced concrete carrier is 60-300 mm.
[0013] Furthermore, the vertical spacing between the two layers of the bidirectional steel mesh is 330 mm, the protective layer is 35 mm thick, and the steel bar head is exposed for 25 mm.
[0014] Furthermore, the bidirectional steel mesh includes transverse steel bars and longitudinal steel bars, the size of the transverse steel bars is φ12@200, and the size of the longitudinal steel bars is φ16@200.
[0015] Furthermore, a hanger is pre-embedded on the top or side of the reinforced concrete carrier.
[0016] Furthermore, the defective unit is suspended between the double layers of the bidirectional steel mesh by a hanging part, and the hanging part includes a horizontal bar, a vertical bar and a hook, and the two vertical bars are respectively connected to the two hooks and are respectively connected to the two ends of the horizontal bar, and the hook is hung on the bidirectional steel mesh located on the upper layer, and the defective unit is placed on at least two of the horizontal bars.
[0017] Compared with the prior art, this application has the following beneficial effects:
[0018] A defect void detection model is provided, which includes two layers of bidirectional steel mesh and at least one defect unit. After the inspector inspects the defect void detection model, the detected defects are compared with the positions and types of the pre-recorded defect units to obtain the correlation between the detected features and the actual defects, thereby providing valuable data and experience for detecting concrete defects. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0020] Figure 1 A three-dimensional diagram of a concrete defect and void detection model according to an embodiment of the utility model;
[0021] Figure 2 A three-dimensional diagram of the construction process of the concrete defect and void detection model according to an embodiment of the utility model;
[0022] Figure 3 for Figure 2 A local enlarged view of point A;
[0023] The numbers in the figure represent the following:
[0024] 1-reinforced concrete carrier; 11-bidirectional steel mesh; 12-hanging device; 2-defective unit; 3-hanging piece; 31-cross bar; 32-vertical bar; 33-hook. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 creative work are within the scope of protection of the utility model.
[0026] The following is a concrete defect and void detection model, please refer to Figure 1 , 2 .
[0027] The concrete defect void detection model comprises: a reinforced concrete carrier 1, wherein at least one defect unit 2 is embedded in the reinforced concrete carrier 1.
[0028] In order to facilitate the preparation of the reinforced concrete carrier 1 and to facilitate testing, the shape and size of the reinforced concrete carrier 1 are provided below for reference.
[0029] The reinforced concrete carrier 1 is a three-dimensional rectangular shape with a length of 3200mm, a width of 2000mm, and a thickness of 400mm. It has a double-layer bidirectional steel mesh 11 with a vertical spacing of 330mm. The size of the transverse steel bar is φ12@200, the size of the longitudinal steel bar is φ16@200, the protective layer is 35mm thick, the steel bar head is exposed 25mm, and the concrete is C40 concrete.
[0030] The transverse and longitudinal reinforcements can also be made with a diameter of φ18 as required.
[0031] In order to simulate different types of defects, some different types of defective units 2 are provided below for selection.
[0032] The defective unit 2 includes a container, which may be an aluminum-plastic box, a wooden box, a plastic box, a hollow wooden board, a hollow plastic board or other unfilled structure.
[0033] The defect unit 2 comprises a container and a filler, and the filler can be loose sand, compacted sand, and a mixture of compacted sand and water.
[0034] The defect unit 2 can be in the shape of a three-dimensional rectangle with a length of 300-550 mm, a width of 300-550 mm, and a thickness of 6-30 mm.
[0035] The defective units 2 are placed at different positions and at different depths on the reinforced concrete carrier 1. Usually, the reinforced concrete carrier 1 is divided into 15 areas of equal area in the horizontal direction. The defective units 2 are placed inside 6 of the 15 areas. The depth of the defective units 2 in each area is 60-300 mm.
[0036] The method for making a concrete defect void detection model includes the following steps.
[0037] Before pouring concrete, compact the soil foundation, then lay 2 cm thick wooden boards as an isolation layer, and then use 2 cm thick wooden boards to build a mold. The mold is pre-opened with installation holes that match the transverse and longitudinal steel bars. The transverse and longitudinal steel bars are inserted into the installation holes to fix their positions, and then the defective unit 2 is placed between the double-layer bidirectional steel mesh 11. The defective unit 2 can be fixed with objects such as steel bars, lifting ropes, steel wires, hooks 33, and finally concrete is poured.
[0038] A lifting device 12 is pre-buried on the top or side of the reinforced concrete carrier 1 to facilitate lifting and transportation.
[0039] Defective unit 2 can be suspended by hanging piece 3, please refer to Figure 3 The hanging member 3 includes a horizontal bar 31, a vertical bar 32 and a hook 33. The two vertical bars 32 are respectively connected to the two hooks 33 and are respectively connected to the two ends of the horizontal bar 31. The hook 33 is hung on the bidirectional steel mesh 11 located on the upper layer, so that the horizontal bar 31 can be horizontally suspended between the double-layer bidirectional steel mesh 11. The defective unit 2 is placed on at least two horizontal bars 31.
[0040] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.
Claims
1. A concrete defect and void detection model, characterized in that: include: A reinforced concrete carrier, wherein at least one defect unit is embedded in the reinforced concrete carrier, and the reinforced concrete carrier has two layers of bidirectional steel mesh built in; The defective unit includes a first container, wherein the first container is hollow; The defective unit includes a second container and a filler, and the filler fills the interior of the second container.
2. A concrete defect and void detection model according to claim 1, characterized in that: The reinforced concrete carrier and the defect unit are both in a flat three-dimensional rectangular shape.
3. A concrete defect and void detection model according to claim 2, characterized in that: The length of the reinforced concrete carrier is 3200 mm, the width is 2000 mm, and the thickness is 400 mm. The material of the reinforced concrete carrier is C40 concrete.
4. A concrete defect and void detection model according to claim 3, characterized in that: The length of the defect unit is 300-550 mm, the width is 300-550 mm, and the thickness is 6-30 mm. The depth of the defect unit inside the reinforced concrete carrier is 60-300 mm.
5. A concrete defect and void detection model according to claim 3, characterized in that: The vertical spacing of the two layers of bidirectional steel mesh is 330 mm, the protective layer is 35 mm thick, and the steel bar head is exposed for 25 mm.
6. A concrete defect and void detection model according to claim 5, characterized in that: The bidirectional steel mesh includes transverse steel bars and longitudinal steel bars. The size of the transverse steel bars is φ12@200, and the size of the longitudinal steel bars is φ16@200.
7. A concrete defect and void detection model according to claim 1, characterized in that: A hanger is pre-buried on the top or side of the reinforced concrete carrier.
8. A concrete defect and void detection model according to claim 1, characterized in that: The defective unit is suspended between the double layers of the bidirectional steel mesh by a hanging part, and the hanging part includes a horizontal bar, a vertical bar and a hook, and the two vertical bars are respectively connected to the two hooks and the two ends of the horizontal bar, and the hook is hung on the bidirectional steel mesh located on the upper layer, and the defective unit is placed on at least two of the horizontal bars.