CN115489012A - Preparation tool and method for test block capable of accurately simulating crack defects of bridge - Google Patents
Preparation tool and method for test block capable of accurately simulating crack defects of bridge Download PDFInfo
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- CN115489012A CN115489012A CN202210785175.2A CN202210785175A CN115489012A CN 115489012 A CN115489012 A CN 115489012A CN 202210785175 A CN202210785175 A CN 202210785175A CN 115489012 A CN115489012 A CN 115489012A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
The application relates to a preparation tool for accurately simulating a bridge crack defect test block, which comprises a plurality of crack steel sheet insertion ends, at least one crack horizontal end and a fixed base; the fixing base is used for fixing the insertion ends of the cracked steel sheets, and the horizontal ends of the cracks are at least partially arranged between the insertion ends of the two adjacent cracked steel sheets and can adjust the distance between the insertion ends of the two cracked steel sheets so as to simulate the thickness of crack defects. The preparation method of the test block for accurately simulating the crack defects of the bridge is further provided, and the preparation tool for the test block for accurately simulating the crack defects of the bridge is used. In the scheme, the length and the width of the insertion end of the crack steel sheet and the distance between the insertion ends of the two crack steel sheets are convenient to accurately adjust, the length, the width and the depth of a bridge crack can be accurately simulated according to the actual environment of the bridge, and therefore the test block for accurately simulating the crack defect of the bridge can be manufactured.
Description
Technical Field
The application relates to the technical field of bridge detection and bridge repair, in particular to a tool and a method for preparing a test block for accurately simulating crack defects of a bridge.
Background
In the service process of the concrete bridge, the concrete bridge is affected by the service life, the external environment, the vehicle load, seawater scouring and other factors, and surface cracking is easy to occur. The concrete protection effect and the bearing effect are weakened due to the crack defects, the invasion of harmful ions is accelerated, the durability of the bridge is influenced, and certain potential safety hazards are increased. A plurality of detection methods are provided for detecting the bridge defects. For example, patent CN92601752a discloses a detection method, which preprocesses the image data of the bridge body to obtain a clear image with a background except for defects removed; performing edge detection on the image obtained after pretreatment to detect the area of the bridge body with peeling defects; and processing the preprocessed image by adopting a preset convolution neural network model so as to detect the position of the crack defect of the bridge body and the size of the crack defect. Patent CN21871317U discloses a bridge detection device, including devices such as mount, slide rail, microprobe.
However, for the accuracy evaluation of the bridge defect detection method, no corresponding standard exists at present. Particularly, the accuracy detection difficulty of the intelligent defect identification technology is high, a test platform is required to be built, the defects are prefabricated on the surface of the box girder, and the accuracy of the intelligent identification system is evaluated based on the difference between the set parameters of the defects and the measured parameters of the intelligent system. In the process, accurate and efficient manufacture of the defect test block is an important link for evaluating the accuracy of the defect intelligent identification technology.
In the prior art, the defect test block cannot accurately simulate the size of a bridge crack according to the actual environment of the bridge, so that the accuracy of the intelligent defect identification evaluation technology is influenced. Therefore, how to accurately simulate the length, the width and the depth of a bridge crack according to the actual environment of a bridge and prepare a corresponding defect test block is a problem to be solved urgently.
Disclosure of Invention
Therefore, a preparation tool and a preparation method for a test block for accurately simulating the crack defect of the bridge are needed, and the problem that the size of the crack of the bridge cannot be accurately simulated by the defect test block in the prior art is solved.
The application provides a preparation tool for accurately simulating a bridge crack defect test block, which comprises a plurality of crack steel sheet insertion ends, at least one crack horizontal end and a fixed base; the fixed base is used for fixing the insertion ends of the slit steel sheets, and the slit horizontal ends are at least partially arranged between the two adjacent insertion ends of the slit steel sheets and can adjust the distance between the two insertion ends of the slit steel sheets so as to simulate the thickness of the defect of the slit.
According to the scheme, the length and the depth of the crack defect are respectively simulated through the length and the width of the inserting end of the crack steel sheet, the thickness of the crack defect is simulated through the distance between the inserting ends of the two crack steel sheets, the crack horizontal end used for adjusting the distance between the inserting ends of the two crack steel sheets is correspondingly arranged, and the inserting end of the crack steel sheet which is finished through fixed adjustment is fixed by the fixing base, so that a bridge crack defect test block can be manufactured conveniently. In the scheme, the length and the width of the insertion end of the crack steel sheet and the distance between the insertion ends of the two crack steel sheets are convenient to accurately adjust, the length, the width and the depth of a bridge crack can be accurately simulated according to the actual environment of the bridge, and therefore the test block for accurately simulating the crack defect of the bridge can be manufactured.
The technical solution of the present application is further described below:
in any embodiment, one end of the split horizontal end is fixedly connected with one of two adjacent split steel sheet insertion ends, and the other end of the split horizontal end penetrates through and is in sliding connection with the other of the two adjacent split steel sheet insertion ends.
In any embodiment, the horizontal end of the slit is a cylindrical structure.
In any embodiment, at least part of the insertion end of the slit steel sheet is provided with a through hole for the horizontal end of the slit to pass through, and the diameter of the through hole is larger than that of the horizontal end of the slit.
In any embodiment, the number of the crack horizontal ends between two adjacent crack steel sheet insertion ends is two, the number of the through holes is two, and the through holes correspond to the crack horizontal ends one by one.
In any embodiment, the horizontal ends of the slits are made of rubber.
In any embodiment, the stationary base is a foam board.
The application also provides a preparation method of the test block for accurately simulating the crack defects of the bridge, which comprises the following steps: the plurality of the inserting ends of the slit steel sheets are connected through the slit horizontal ends, and the distance between two adjacent inserting ends of the slit steel sheets is adjusted by utilizing the slit horizontal ends; steel sheet grooves with the number corresponding to the number of the crack steel sheet insertion ends and the intervals corresponding to the intervals are formed in the fixed base, and the crack steel sheet insertion ends are fixed in the steel sheet grooves in a one-to-one corresponding mode; and pouring concrete to obtain the test block for the crack defects of the bridge.
In the scheme, the preparation tool for accurately simulating the bridge crack defect test block is used as a mold for manufacturing the bridge crack defect test block, so that the bridge crack defect test block is obtained, wherein the length and the width of the crack correspond to the length and the width of the insertion end of the crack steel sheet respectively, and the width corresponds to the distance between the insertion ends of the two crack steel sheets.
In any embodiment, the method for fixing the split steel sheet insertion ends on the fixed base comprises the following steps of: measuring the distance between the adjacent insertion ends of the fractured steel sheets by using distance detection equipment; steel sheet grooves are formed according to the distance; fixing the plurality of inserted ends of the slit steel sheets to the steel sheet grooves; and measuring the retest distance between the adjacent crack steel sheet insertion ends by using the distance detection equipment, comparing the retest distance with the distance, and adjusting the crack steel sheet insertion ends if the retest distance is inconsistent with the distance.
In any embodiment, the step of pouring concrete to obtain the bridge crack defect test block comprises the following steps: pouring concrete, or pouring concrete after taking down the horizontal end of the crack; standing at normal temperature; and drawing out the insertion end of the crack steel sheet and obtaining a bridge crack defect test block.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a tool for preparing a test block for accurately simulating a crack defect of a bridge according to an embodiment of the present disclosure;
fig. 2 is a schematic structural view of an insertion end of the cracked steel piece in fig. 1.
Description of reference numerals:
100. preparing a tool; 110. inserting ends of the slit steel sheets; 111. a through hole; 120. a horizontal end of the crack; 130. and fixing the base.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the embodiments disclosed below.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relation describing an associated object, and means that three kinds of relations may exist, for example, a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Preferred embodiments of the present application will be described below with reference to the accompanying drawings.
As shown in fig. 1, a tool 100 for accurately simulating a crack defect test block of a bridge is shown in an embodiment of the present application, and includes a plurality of crack steel sheet insertion ends 110, at least one crack horizontal end 120, and a fixing base 130; the fixing base 130 is used for fixing the crack steel sheet insertion end 110, the length and the width of the crack steel sheet insertion end 110 correspond to the length and the depth of a simulated crack defect respectively, and the crack horizontal end 120 is at least partially arranged between two adjacent crack steel sheet insertion ends 110 and can adjust the distance between the two crack steel sheet insertion ends 110 so as to simulate the thickness of the crack defect.
The tool 100 for accurately simulating a test block for crack defects of a bridge may be understood as a mold for manufacturing a test block for crack defects of a bridge through concrete pouring, wherein the length and width of the insertion ends 110 of the cracked steel sheets may be cut and adjusted according to the actual environment of the bridge, and the distance between the insertion ends 110 of the two cracked steel sheets may be adjusted by using the horizontal ends 120 of the cracks. When the bridge crack defect test block is manufactured by the manufacturing tool 100 for accurately simulating the bridge crack defect test block, the position of the crack steel sheet insertion end 110 and the area between the two crack steel sheet insertion ends 110 are not communicated with the position of the bridge crack defect test block, and poured concrete is not of an integral structure after standing at normal temperature and can be decomposed. Thereby obtaining the bridge crack defect test block, wherein the crack length and the crack width respectively correspond to the length and the width of the crack steel sheet insertion end 110, and the crack width corresponds to the distance between the two crack steel sheet insertion ends 110.
In the scheme, the length and the depth of the crack defect are respectively simulated through the length and the width of the crack steel sheet insertion end 110, the thickness of the crack defect is simulated through the distance between the two crack steel sheet insertion ends 110, the crack horizontal end 120 used for adjusting the distance between the two crack steel sheet insertion ends 110 is correspondingly arranged, and the adjusted crack steel sheet insertion end 110 is fixed by the fixing base 130 so as to manufacture a bridge crack defect test block. In the scheme, the length and the width of the insertion end 110 of the fractured steel piece and the distance between the insertion ends 110 of the two fractured steel pieces are convenient to accurately adjust, and the length, the width and the depth of a bridge crack can be accurately simulated according to the actual environment of the bridge, so that a test block for accurately simulating the crack defect of the bridge can be manufactured.
Referring to fig. 1 and 2, according to some embodiments of the present application, optionally, one end of the split horizontal end 120 is fixedly connected to one of two adjacent split steel sheet insertion ends 110, and the other end of the split horizontal end 120 passes through and slidably connects the other of the two adjacent split steel sheet insertion ends 110.
The fixing connection when the split horizontal end 120 is connected with the split steel sheet insertion end 110 may be a detachable connection, such as an adhesive, a bolt threaded connection, a snap connection, or the like, or may be a non-detachable connection, such as a welding connection, or the like. In the present embodiment, the fixing method when the cracked horizontal end is connected to the insertion end 110 of the cracked steel sheet is gluing.
When the distance between two adjacent crack steel sheet insertion ends 110 needs to be adjusted, only one end of the crack horizontal end 120 protruding out of the two crack steel sheet insertion ends 110 needs to be pulled, so that the crack steel sheet insertion end 110 fixedly connected with the crack horizontal end 120 moves along with the crack horizontal end 120, and the other crack steel sheet insertion end 110 in sliding connection with the crack horizontal end 120 is not influenced by the movement of the crack horizontal end 120, so that the two crack steel sheet insertion ends 110 move relatively, the distance between the two crack steel sheet insertion ends 110 is adjusted, and the distance between the two crack steel sheet insertion ends 110 can simulate the thickness of crack defects more accurately.
Referring to fig. 1, according to some embodiments of the present application, optionally, the split horizontal end 120 is a cylindrical structure. In the embodiment, the crack horizontal end 120 is a cylindrical structure with the diameter of 1 cm and the length of 5 cm on the bottom surface of two. In other embodiments, the split horizontal end 120 may be other cylindrical structures, such as a quadrangular prism or the like.
Referring to fig. 1 and 2, according to some embodiments of the present application, optionally, at least a portion of the insertion end 110 of the split steel sheet is provided with a through hole 111 for passing the split horizontal end 120 therethrough, and the diameter of the through hole 111 is larger than the diameter of the split horizontal end 120.
The shape of the through-hole 111 corresponds to the cross-sectional structure of the horizontal end 120 of the slit. In the embodiment shown in fig. 1 and 2, the split horizontal end 120 is cylindrical, and the through hole 111 is a circular hole. In other embodiments, the through hole 111 may be a through hole with other shapes, such as a square hole, a rectangular hole, or the like.
Referring to fig. 1 and 2, according to some embodiments of the present application, optionally, the number of the horizontal split ends 120 between two adjacent insertion ends 110 of the split steel sheets is two, the number of the through holes 111 is two, and the through holes 111 correspond to the horizontal split ends 120 one by one.
When the number of the split horizontal ends 120 is two, when it is necessary to adjust the distance between two adjacent split steel sheet insertion ends 110, the two split horizontal ends 120 need to be moved in synchronization to avoid inclination when the split horizontal ends 120 fixedly connected with the split horizontal ends 120 are moved.
The distance between the two through holes 111 can be set at will, in the embodiment, the insertion end 110 of the fractured steel sheet is a 0.5mm square steel sheet, the two through holes 111 are located at a position 0.5 cm from the bottom edge of the insertion end 110 of the fractured steel sheet, the diameter of the through holes 111 is 1 cm, and the distance between the circular centers of the two through holes 111 is 1.5 cm.
By arranging the two split horizontal ends 120 and the two corresponding through holes 111, the hidden dangers that the split steel sheet insertion end 110 is unstable in connection and the split steel sheet insertion end 110 is easy to incline and the like when only one split horizontal end 120 is arranged can be reduced, and the split steel sheet insertion end can be more stable. There is also a greater savings in material when more than two multiple split horizontal ends 120 are provided in opposition.
According to some embodiments of the present application, optionally, the split horizontal ends 120 are made of a rubber material. The crack horizontal end 120 of the rubber material is made of a soft material, is convenient to disassemble and can be used for multiple times.
According to some embodiments of the present application, optionally, the stationary base 130 is a foam board. In this embodiment, the stationary base 130 is a cellular board with 5 × 1 cm.
The fixed base 130 is made of a foam plate, so that the slot is convenient for inserting and fixing the insertion end 110 of the slit steel sheet, and the cost is low.
The application also provides a preparation method of the test block for accurately simulating the crack defects of the bridge, which comprises the following steps: s01: the plurality of split steel sheet insertion ends 110 are connected by split horizontal ends 120, and the interval between two adjacent split steel sheet insertion ends 110 is adjusted by the split horizontal ends 120. The two cracked steel sheet insertion ends 110 are driven to move relatively by the cracked horizontal end 120, so that the distance between the two cracked steel sheet insertion ends 110 is adjusted, and the thickness of crack defects can be simulated accurately by the distance between the two cracked steel sheet insertion ends 110. Before S01, a plurality of slit steel sheet insertion ends 110 of set length and width may be selected. The length and the width of the insertion end 110 of the fractured steel sheet correspond to the length and the depth of the simulated fracture defect respectively, and the cutting adjustment can be carried out according to the actual environment of the bridge.
S02: the fixed base 130 is provided with a number of steel sheet grooves corresponding to the number of the crack steel sheet insertion ends 110 and a corresponding distance therebetween, and the crack steel sheet insertion ends 110 are fixed in the steel sheet grooves in a one-to-one correspondence. The steel sheet groove is used for fixing the crack steel sheet insertion end 110, and the problems that the crack steel sheet insertion end 110 is displaced and inclined and the like in the concrete pouring process are solved. In the present embodiment, the depth of the steel sheet groove may be 0.5 cm.
S03: and pouring concrete to obtain the test block for the crack defects of the bridge. The position of the crack steel sheet insertion end 110 and the area between the two crack steel sheet insertion ends 110 are not communicated with the position of a bridge crack defect test block, and poured concrete is not of an integrated structure after standing at normal temperature and can be decomposed.
In the above scheme, the preparation tool 100 for accurately simulating the bridge crack defect test block is used as a mold for manufacturing the bridge crack defect test block, so as to obtain the bridge crack defect test block, wherein the crack length and the crack width respectively correspond to the length and the width of the crack steel sheet insertion end 110, and the crack width corresponds to the distance between the two crack steel sheet insertion ends 110.
According to some embodiments of the application, optionally, S02: the method is characterized in that steel sheet grooves with the number corresponding to the number of the crack steel sheet insertion ends 110 and the corresponding intervals are formed in the fixed base 130, and the crack steel sheet insertion ends 110 are fixed in the steel sheet grooves in a one-to-one correspondence mode, and the method comprises the following steps: s021: the distance between the insertion ends 110 of the adjacent cracked steel sheets is measured using a distance measuring apparatus. Wherein, the distance detection device can adopt a micrometer screw. S022: and steel sheet grooves are formed according to the distance. S023: a plurality of split steel sheet insertion ends 110 are fixed to the steel sheet grooves. S034: and measuring the retest distance between the adjacent cracked steel sheet insertion ends 110 by using distance detection equipment, comparing the retest distance with the distance, if the retest distance is inconsistent with the distance, adjusting the cracked steel sheet insertion ends 110, and continuously measuring the retest distance between the adjacent cracked steel sheet insertion ends 110 by using the distance detection equipment after adjustment and comparing the retest distance with the distance until the retest distance is consistent with the distance. The retest spacing is consistent with the spacing, which means consistent within a certain error range.
According to some embodiments of the application, optionally, S03: pouring concrete to obtain a bridge crack defect test block, comprising the following steps: s031: and (5) pouring concrete, or pouring concrete after the horizontal end 120 of the crack is taken down. The horizontal crack end 120 may be left in a defective test block for direct casting, or the horizontal crack end 120 may be taken out for casting. S032: standing at normal temperature to solidify the liquid concrete into a solid state. S033: and (5) extracting the crack steel sheet insertion end 110 and obtaining a bridge crack defect test block.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not cause the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present application, and are intended to be covered by the claims and the specification of the present application. In particular, the features mentioned in the embodiments can be combined in any manner, as long as no structural conflict exists. This application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a preparation instrument of accurate simulation bridge crack defect test block which characterized in that includes:
the device comprises a plurality of crack steel sheet insertion ends, at least one crack horizontal end and a fixed base; the fixed base is used for fixing the insertion ends of the slit steel sheets, and the slit horizontal ends are at least partially arranged between the two adjacent insertion ends of the slit steel sheets and can adjust the distance between the two insertion ends of the slit steel sheets so as to simulate the thickness of the defect of the slit.
2. The tool for accurately simulating a crack defect test block of a bridge as claimed in claim 1, wherein one end of the crack horizontal end is fixedly connected to one of two adjacent crack steel sheet insertion ends, and the other end of the crack horizontal end passes through and is slidably connected to the other of the two adjacent crack steel sheet insertion ends.
3. The tool for preparing the test block for accurately simulating the crack defect of the bridge as claimed in claim 2, wherein the horizontal end of the crack is a cylindrical structure.
4. The tool for preparing the test block for accurately simulating the crack defects of the bridge as claimed in claim 3, wherein at least a part of the insertion end of the cracked steel sheet is provided with a through hole for the horizontal end of the crack to pass through, and the diameter of the through hole is larger than the diameter of the horizontal end of the crack.
5. The tool for preparing the test block for accurately simulating the crack defects of the bridge as claimed in claim 4, wherein the number of the crack horizontal ends between two adjacent insertion ends of the crack steel sheet is two, the number of the through holes is two, and the through holes correspond to the crack horizontal ends one to one.
6. The tool for preparing the test block for accurately simulating the crack defects of the bridge as claimed in claim 5, wherein the horizontal ends of the cracks are made of rubber.
7. The tool for preparing the test block for accurately simulating the crack defects of the bridge as recited in claim 5, wherein the fixing base is a foam board.
8. A method for preparing a test block for accurately simulating bridge crack defects, which is characterized in that the tool for preparing the test block for accurately simulating bridge crack defects as claimed in any one of claims 1 to 7 is used, and comprises the following steps:
the plurality of the inserting ends of the slit steel sheets are connected through the slit horizontal ends, and the distance between two adjacent inserting ends of the slit steel sheets is adjusted by utilizing the slit horizontal ends;
steel sheet grooves with the number corresponding to the number of the crack steel sheet insertion ends and the intervals corresponding to the intervals are formed in the fixed base, and the crack steel sheet insertion ends are fixed in the steel sheet grooves in a one-to-one corresponding mode;
and pouring concrete to obtain the test block for the crack defects of the bridge.
9. The method for preparing the test block for accurately simulating the crack defects of the bridge according to claim 8, wherein the fixed base is provided with a plurality of steel sheet grooves with the number and the intervals corresponding to the inserting ends of the crack steel sheets, and the inserting ends of the crack steel sheets are fixed in the steel sheet grooves in a one-to-one correspondence manner, and the method comprises the following steps:
measuring the distance between the adjacent insertion ends of the fractured steel sheets by using distance detection equipment;
steel sheet grooves are formed according to the distance;
fixing the plurality of inserted ends of the slit steel sheets to the steel sheet grooves;
and measuring the retest distance between the adjacent crack steel sheet insertion ends by using the distance detection equipment, comparing the retest distance with the distance, and adjusting the crack steel sheet insertion ends if the retest distance is inconsistent with the distance.
10. The method for preparing the test block for accurately simulating the crack defects of the bridge according to claim 8, wherein the step of pouring concrete to obtain the test block for the crack defects of the bridge comprises the following steps:
pouring concrete, or pouring concrete after taking down the horizontal end of the crack;
standing at normal temperature;
and drawing out the insertion end of the crack steel sheet and obtaining a bridge crack defect test block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210785175.2A CN115489012A (en) | 2022-07-05 | 2022-07-05 | Preparation tool and method for test block capable of accurately simulating crack defects of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210785175.2A CN115489012A (en) | 2022-07-05 | 2022-07-05 | Preparation tool and method for test block capable of accurately simulating crack defects of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115489012A true CN115489012A (en) | 2022-12-20 |
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| CN202210785175.2A Pending CN115489012A (en) | 2022-07-05 | 2022-07-05 | Preparation tool and method for test block capable of accurately simulating crack defects of bridge |
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| CN111267207A (en) * | 2020-02-24 | 2020-06-12 | 重庆大学 | Device for manufacturing test piece section for detecting broken wire of Prestressed Concrete Cylinder Pipe (PCCP) |
| CN113532995A (en) * | 2021-07-22 | 2021-10-22 | 吉林大学 | Adjustable rock-like material crack prefabricating device |
| CN114378931A (en) * | 2021-12-30 | 2022-04-22 | 诺丁汉(余姚)智能电气化研究院有限公司 | Mold for manufacturing crack of biological concrete sample and crack manufacturing method |
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| US20090293689A1 (en) * | 2008-05-30 | 2009-12-03 | Shu Ichihara | Specimen slicing guide, specimen slicing apparatus and method of using the same |
| CN102519767A (en) * | 2011-12-16 | 2012-06-27 | 武汉大学 | Mould for manufacturing fissure surface of rock like test block |
| JP2014181920A (en) * | 2013-03-18 | 2014-09-29 | Nippon Telegr & Teleph Corp <Ntt> | Manufacturing method of sample |
| CN204679322U (en) * | 2015-06-05 | 2015-09-30 | 北京市道路工程质量监督站 | A kind of die trial testing actual pavement track |
| CN111267207A (en) * | 2020-02-24 | 2020-06-12 | 重庆大学 | Device for manufacturing test piece section for detecting broken wire of Prestressed Concrete Cylinder Pipe (PCCP) |
| CN113532995A (en) * | 2021-07-22 | 2021-10-22 | 吉林大学 | Adjustable rock-like material crack prefabricating device |
| CN114378931A (en) * | 2021-12-30 | 2022-04-22 | 诺丁汉(余姚)智能电气化研究院有限公司 | Mold for manufacturing crack of biological concrete sample and crack manufacturing method |
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