Concrete strength detection device capable of automatically climbing column

Abstract

The invention provides a concrete strength detection method which comprises the following steps: mounting a concrete strength detection device on a to-be-detected column, and adjusting an outer supporting frame of the concrete strength detection device to enable the inner contour of the outer supporting frame to be matched with the outer contour of the to-be-detected column; controlling a column climbing mechanism of the concrete strength detection device to be close to a core to-be-detected area of the to-be-detected column; a strength detection assembly of the concrete strength detection device is controlled, and a plurality of concrete strength detection points in the core to-be-detected area of the to-be-detected column are detected at the same time. The multiple concrete strength detection points in the core to-be-detected area of the to-be-detected column are detected at the same time so as to obtain the concrete strength of the to-be-detected area of the beam-column junction, multiple point positions can be rapidly detected, the detection efficiency is improved, and the problem that existing concrete strength detection of the beam-column junction is low in detection efficiency is solved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete strength detection, in particular to a concrete strength detection device capable of automatically climbing columns. Background Art

[0002] Concrete testing equipment is a measuring device used to evaluate the quality and performance of concrete structures. The rebound method is the most commonly used testing method. It is a non-destructive testing method that estimates the compressive strength of concrete by the restoring force of the instantaneous elastic deformation generated by the impact of the concrete surface.

[0003] When pouring concrete, according to the specification "Concrete Structure Engineering Construction Code" (GB 50666-2011), when the column concrete is one grade higher than the beam and slab concrete, the same grade of beam and slab concrete can be poured at the junction of the beam and column after confirmation by the design unit; when the column concrete is two grades higher than the beam and slab concrete, separation measures must be taken at the junction, so the concrete strength at the junction of the beam and column is crucial. When conducting concrete strength testing, due to the high elevation of the beam-column junction, ladders and other climbing equipment are required, which poses safety hazards and has low testing efficiency. Summary of the invention

[0004] In view of this, the present invention proposes a concrete strength detection method, aiming to solve the problem of low detection efficiency of concrete strength detection at the junction of existing beams and columns.

[0005] The present invention proposes a concrete strength detection method, which adopts a concrete strength detection device that can automatically climb columns to perform concrete strength detection, and comprises the following steps: an installation step, installing the concrete strength detection device on the column to be detected, and adjusting the outer support frame of the concrete strength detection device so that its inner contour is adapted to the outer contour of the column to be detected; a climbing step, controlling the column climbing mechanism of the concrete strength detection device to drive the concrete strength detection device to approach the core to-be-detected area of ​​the column to be detected, until the concrete strength detection device moves to the beam-column junction to-be-detected area of ​​the column to be detected; and a detection step, controlling the strength detection component of the concrete strength detection device to simultaneously detect multiple concrete strength detection points in the core to-be-detected area of ​​the column to be detected, so as to obtain the concrete strength of the beam-column junction to-be-detected area.

[0006] Furthermore, in the above-mentioned concrete strength detection method, the concrete strength detection device includes: an external telescopic support frame, which is used to surround the concrete column structure; a column climbing mechanism, which is arranged on the inner side of the outer support frame, and is used to crawl along the axial direction of the concrete column structure to climb to a preset core detection area; a strength detection component, which is arranged on the outer support frame, and is used to simultaneously detect multiple concrete strength detection points.

[0007] Further, in the above-mentioned concrete strength detection method, the outer support frame includes: two first telescopic frames and two second telescopic frames; wherein, the two first telescopic frames are arranged side by side and at intervals, the two second telescopic frames are arranged between the two first telescopic frames, and the two ends of the two second telescopic frames are respectively connected to the two corresponding ends of the two first telescopic frames, and the two first telescopic frames and the two second telescopic frames are arranged to form a rectangular structure.

[0008] Further, in the above-mentioned concrete strength detection method, the first telescopic frame and / or the second telescopic frame includes: a fixed support plate; two telescopic shells, which are mounted on both ends of the fixed support plate, and the two telescopic shells are connected to the fixed support plate in a slidable manner along the length direction of the fixed support plate, for performing telescopic adjustment to adjust the overall length of the combination of the fixed support plate and the two telescopic shells.

[0009] Furthermore, in the above concrete strength detection method, the telescopic shell is connected to a driving assembly for driving the telescopic shell to extend and retract.

[0010] Furthermore, in the above-mentioned concrete strength detection method, the driving assembly includes: a rotating center wheel for rotating under the action of an external force; a transmission member, the transmission member having two power output ends, the power input end of the transmission member being connected to the rotating center wheel, and the two power output ends of the transmission member being respectively connected to the two telescopic shells, for converting the rotation of the rotating center wheel into toward or away movement of the two telescopic shells.

[0011] Furthermore, in the above-mentioned concrete strength detection method, the transmission member includes: a transmission gear, which is arranged on the rotating center wheel; two racks, which are respectively connected to the two telescopic shells, and the two racks are respectively arranged on both sides of the rotating center wheel, and the two racks are meshed with the transmission gear. When the transmission gear rotates with the rotating center wheel, the two racks drive the two telescopic shells to move toward or away from each other.

[0012] Furthermore, in the above-mentioned concrete strength detection method, the detection step includes the following sub-steps: a detection number sub-step, which determines the initial detection position, the number of detections and the detection interval spacing based on the standard detection height of the strength detection component and the detection width of the beam-column junction area to be detected; a data acquisition sub-step, which controls the concrete strength detection device to the initial detection position of the beam-column junction area to be detected of the column to be detected, performs strength detection on the column to be detected at the initial detection position, and controls the concrete strength detection device to crawl one by one according to the detection interval spacing, so as to perform strength detection on each corresponding detection position in turn, until the concrete strength detection of the beam-column junction area to be detected is completed, and several groups of concrete strength data are obtained; a data processing sub-step, which performs strength outlier inspection on several groups of concrete strength data in turn, and if there is a strength outlier, removes the strength outlier; an averaging sub-step, which averages the concrete strength data after removing the strength outliers, and obtains the average value of the concrete strength data as the concrete strength of the beam-column junction area to be detected.

[0013] Furthermore, in the above concrete strength detection method, the detection times sub-step specifically includes: based on the standard detection height of the strength detection component and the width of the beam-column junction area to be detected, using the following formula, determining the difference detection multiple Δn between the standard detection height of the strength detection component and the width of the beam-column junction area to be detected:

[0014] Δn=floor(K / B),

[0015] Among them, K is the width of the inspection area at the junction of the beam and column, and B is the standard inspection height of the strength inspection component;

[0016] A first preset phase difference multiple n1, a second preset phase difference multiple n2, a third preset phase difference multiple n3 and a fourth preset phase difference multiple n4 are set, and a first preset detection spacing L1, a second preset detection spacing L2, a third preset detection spacing L3 and a fourth preset detection spacing L4 are set, and a preset detection number difference reference value matrix N is set, and ΔN (ΔN1, ΔN2, ΔN3, ΔN4) is set, wherein the first preset detection number difference reference value ΔN1, the second preset detection number difference reference value ΔN2, the third preset detection number difference reference value ΔN3 and the fourth preset detection number difference reference value ΔN4 are set; according to the relationship between the phase difference detection multiple between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected, and each of the detection times, each of the preset detection spacings is selected as the detection interval spacing of the strength detection component, and the detection times are determined:

[0017] When Δn<n1, the first preset detection interval L1 is selected as the detection interval of the intensity detection component, and Δn-ΔN1 is selected as the number of detections;

[0018] When n1≤Δn<n2, a second preset detection interval L2 is selected as the detection interval of the intensity detection component, and Δn-ΔN2 is selected as the number of detections;

[0019] When n2≤Δn<n3, a third preset detection interval L3 is selected as the detection interval of the intensity detection component, and Δn-ΔN3 is selected as the number of detections;

[0020] When n3≤Δn<n4, the fourth preset detection interval L4 is selected as the detection interval of the intensity detection component, and Δn-ΔN4 is selected as the number of detections;

[0021] Based on the difference detection multiple Δn between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected, the detection interval spacing of the strength detection component, and the number of detections, the initial detection position is determined according to the following formula:

[0022] ΔH=floor[(KH*f) / 2],

[0023] Wherein, f is the number of detections, K is the width of the beam-column junction area to be detected, and H is the detection interval spacing of the strength detection component.

[0024] Furthermore, in the above concrete strength detection method, the data processing sub-step adopts the Grubbs criterion to eliminate outliers.

[0025] The concrete strength detection method provided by the present invention comprises the following steps: installing the concrete strength detection device on the column to be detected, and adjusting the outer support frame of the concrete strength detection device so that its inner contour is adapted to the outer contour of the column to be detected; controlling the column climbing mechanism of the concrete strength detection device to drive the concrete strength detection device to approach the core detection area of ​​the column to be detected, until the concrete strength detection device moves to the beam-column junction detection area of ​​the column to be detected; controlling the strength detection component of the concrete strength detection device to simultaneously detect multiple concrete strength detection points in the core detection area of ​​the column to be detected, so as to obtain the concrete strength of the beam-column junction detection area, and can quickly perform detection of multiple points, thereby improving the detection efficiency and solving the problem of low detection efficiency of concrete strength detection at the existing beam-column junction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0027] Figure 1 A flowchart of a concrete strength detection method provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the structure of a concrete strength detection device capable of automatically climbing columns provided by an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of the structure of the inner side wall of the outer support frame provided in an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a wall climbing mechanism provided by an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a strength detection component provided by an embodiment of the present invention;

[0032] Figure 6 A schematic structural diagram of a first telescopic frame provided in an embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the structure of a first driving assembly provided in an embodiment of the present invention;

[0034] Figure 8 A schematic structural diagram of a second telescopic frame provided in an embodiment of the present invention;

[0035] Fig. 9 A schematic diagram of the structure of a flexible connector provided by an embodiment of the present invention;

[0036] Fig.10 A schematic diagram of the structure of a data transmission controller provided by an embodiment of the present invention;

[0037] Fig.11 A flowchart of the detection steps provided by the embodiment of the present invention;

[0038] Fig.12 A flowchart of the detection times sub-step provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0039] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0040] See also Figure 1 , which is a flowchart of a concrete strength detection method provided by an embodiment of the present invention. As shown in the figure, the concrete strength detection method uses a concrete strength detection device that can automatically climb columns to detect the concrete strength. The concrete strength detection method includes the following steps:

[0041] Installation step S1, installing the concrete strength detection device on the column to be detected, and adjusting the outer support frame of the concrete strength detection device so that its inner contour is adapted to the outer contour of the column to be detected.

[0042] Specifically, the concrete strength detection device is installed to the outer periphery of the column to be detected, and the outer support frame 1 of the concrete strength detection device is telescopically adjusted so that its inner contour is adapted to the outer contour of the column to be detected, that is, the inner wall is tightly attached to the outer contour of the column to be detected, especially so that the climbing mechanism 2 is tightly attached to the outer contour of the column to be detected.

[0043] Climbing step S2, controlling the column climbing mechanism of the concrete strength detection device to drive the concrete strength detection device to approach the core detection area of ​​the column to be detected, until the concrete strength detection device moves to the beam-column junction detection area of ​​the column to be detected.

[0044] Specifically, the column climbing mechanism 2 of the concrete strength detection device is controlled to drive the concrete strength detection device to approach the core detection area of ​​the column to be detected, that is, to crawl upward, until the concrete strength detection device moves to the beam-column junction detection area of ​​the column to be detected.

[0045] In the detection step S3, the strength detection component of the concrete strength detection device is controlled to simultaneously detect a plurality of concrete strength detection points in the core detection area of ​​the column to be detected, so as to obtain the concrete strength of the detection area at the junction of the beam and the column.

[0046] Specifically, the strength detection component of the concrete strength detection device is controlled to simultaneously detect multiple concrete strength detection points in the core detection area of ​​the column to be detected, so as to obtain the concrete strength of the detection area at the junction of the beam and column.

[0047] See also Figures 2 to 3, which shows the preferred structure of the concrete strength detection device capable of automatically climbing columns provided by an embodiment of the present invention. As shown in the figure, the detection device comprises: an outer support frame 1, a wall climbing mechanism 2 and a strength detection component 3; wherein the outer support frame 1 is used to surround the concrete column structure; the wall climbing mechanism 2 is arranged on the inner side of the outer support frame 1, and is used to climb along the axial direction of the concrete column structure to climb to the preset core detection area, i.e., the junction of the beam and the column; the strength detection component 3 is arranged on the outer support frame 1, and is used to simultaneously detect multiple concrete strength detection points.

[0048] Specifically, the outer support frame 1 is a square outer frame structure that is compatible with the concrete column structure, and is used to be arranged around the outer periphery of the concrete column structure to be fixed to the concrete column structure. The wall-climbing mechanism 2 is arranged on the inner side of the outer support frame 1, and is used to drive the outer support frame 1 and the strength detection component 3 to crawl along the axial direction of the concrete column structure to climb to the preset core detection area, and then perform strength detection on the preset core detection area through the strength detection component 3. Among them, the wall-climbing mechanism 2 can refer to the self-lifting climbing column device disclosed in China Publication No. CN202785541U and the self-lifting climbing column device in the self-lifting wind power equipment maintenance system, and can also be other wall-climbing mechanisms, such as the negative pressure wall-climbing vehicle in a wall-climbing image acquisition device disclosed in CN218647439U. Wall climbing can also be achieved through climbing column wheels. As long as wall climbing can be achieved, it is not limited in this embodiment. Figure 4 As shown, the wall climbing mechanism 2 can be an automatic column climbing wheel 21, and the automatic column climbing wheel 21 is also provided with a limit fixture 22 to lock the automatic column climbing wheel 21, so that the automatic column climbing wheel 21 is positioned on the concrete column structure to achieve the fixation and stop of the device. In this embodiment, the wall climbing mechanism 2 can also be provided with a mounting buckle 23 for mounting on the outer support frame 1 to achieve the connection and fixation between the wall climbing mechanism 2 and the outer support frame 1. In this embodiment, as Figure 4 As shown, the strength detection component 3 includes a fixed support plate 31; a plurality of detection points 311 arranged in an array are provided on the fixed support plate 31, and a detection component is provided at each detection point 311 to simultaneously perform strength detection on the columns corresponding to the plurality of detection points. In this embodiment, the number of detection points 311 can be 16, or other numbers, and no limitation is made in this embodiment. Among them, the detection method of each detection component can refer to the measurement component in the concrete strength detection device for building construction disclosed in China Publication No. CN118706655A, and a rebound detection is performed on the concrete column structure surrounded by the external support frame 1, that is, the compressive strength of the concrete is estimated by the restoring force of the instantaneous elastic deformation generated by the impact on the concrete surface.

[0049] Continue to see Figure 2The outer support frame 1 is a telescopic support frame to adapt to concrete column structures of different cross-sections. The outer support frame 1 includes: two first telescopic frames 11 and two second telescopic frames 12; wherein the two first telescopic frames 11 are arranged side by side and at intervals, the two second telescopic frames 12 are arranged between the two first telescopic frames 11, and the two ends of the two second telescopic frames 12 are respectively connected to the two corresponding ends of the two first telescopic frames 11, and the two first telescopic frames 11 and the two second telescopic frames 12 are surrounded to form a rectangular structure.

[0050] Specifically, the first telescopic frame 11 is used as the long side, the second telescopic frame 12 can be used as the short side, and the two first telescopic frames 11 and the two second telescopic frames 12 are arranged to form a rectangular structure. The concrete strength detection method is to estimate the compressive strength of concrete by the restoring force of the instantaneous elastic deformation generated by hitting the concrete surface. Since hitting the concrete surface will generate a large vibration load, in order to avoid the vibration of the outer support frame 1, preferably, the first telescopic frame 11 and the second telescopic frame 12 are connected by a flexible connector 13 to reduce the adverse effects caused by the vibration load.

[0051] See also Figure 6 , which is a schematic diagram of the structure of the first telescopic frame provided by an embodiment of the present invention. As shown in the figure, the first telescopic frame 11 includes: a first fixed support plate 111 and a first telescopic shell 112; wherein the first telescopic shell 112 is sleeved on the end of the first fixed support plate 111, and the first telescopic shell 112 is extended along the length direction of the first fixed support plate 111 (such as Figure 6 The first fixed support plate 111 is slidably connected to the first fixed support plate 111 in the horizontal direction shown in the figure, and is used for telescopic adjustment to adjust the overall length of the combination of the first fixed support plate 111 and the first telescopic shell 112.

[0052] Specifically, the first fixed support plate 111 is used as a support plate, and the first telescopic shell 112 is arranged along the length direction of the first fixed support plate 111 (such as Figure 6 The first telescopic housing 112 is slidably mounted on the outer periphery of the first fixed support plate 111 (in the horizontal direction shown), and the spacing between the two second telescopic frames 12 connected thereto is adjusted by telescoping. In this embodiment, the first telescopic housing 112 is also connected to a first driving assembly 113, which is used to drive the sliding of the first telescopic housing 112 to adjust the telescoping of the first telescopic housing 112. The first telescopic housing 112 is also provided with a first telescopic control buckle 114, which is used to control the first telescopic housing 112 to be locked and fixed when the first telescopic housing 112 slides into place, for example, the first telescopic housing 112 can be locked to the first fixed support plate 111 to prevent the first telescopic housing 112 from sliding by itself.

[0053] See also Figure 7 , which is a schematic diagram of the structure of the first drive assembly provided by an embodiment of the present invention. As shown in the figure, the first drive assembly 113 includes: a first rotating center wheel 1131 and a first transmission member 1132; wherein the first rotating center wheel 1131 is used to rotate under the action of an external force; the power input end of the first transmission member 1132 is connected to the rotating center wheel 1131, and the power output end of the transmission member is connected to the first telescopic housing 112, and is used to convert the rotation of the rotating center wheel 1131 into the reciprocating linear motion of the first telescopic housing 112.

[0054] In one implementation of the present embodiment, the first transmission member 1132 may be a telescopic chain, a motion track 1133 is provided on the first fixed support plate 111, the telescopic chain may be slidably placed in the motion track, one end of the telescopic chain is connected to the first rotating center wheel 1131, and can be wound on the first rotating center wheel 1131, and the other end is connected to the first telescopic shell 112, and is used to pull the first telescopic shell 112 to slide. In the present embodiment, a limit buckle 1334 may also be provided at the end of the telescopic chain, which is used to be fixed on the first fixed support plate 111 after the telescopic chain moves into place, so as to achieve the locking of the telescopic chain. Among them, the rotation of the first rotating center wheel 1131 can drive the telescopic chain to reciprocate in the motion track to pull the first telescopic shell 112 to slide, and after the first telescopic shell 112 slides into place, the telescopic chain is locked by the limit buckle 1334. Of course, the first transmission member 1132 may also be other structures, which are not limited in the present embodiment.

[0055] In another implementation of this embodiment, the first transmission member 1132 may be a gear rack structure.

[0056] See also Figure 8 , which is a schematic diagram of the structure of the second telescopic frame provided by an embodiment of the present invention. As shown in the figure, the second telescopic frame 12 includes: a second fixed support plate 121 and two second telescopic shells 122; wherein the second telescopic shells 122 are sleeved on both ends of the second fixed support plate 121 (such as Figure 7The left and right ends shown in the figure), and the two second telescopic shells 122 are connected to the second fixed support plate 121 in a slidable manner along the length direction of the second fixed support plate 121, and are used for telescopic adjustment to adjust the overall length of the combination of the second fixed support plate 121 and the two second telescopic shells 122. Specifically, the structure of the second telescopic frame 12 can also refer to the first telescopic frame 11, the difference is that telescopic shells are provided at both ends, and the length is adjusted by the synchronous telescopic extension of the two second telescopic shells 122 to adjust the length of the two first telescopic frames 11. In this embodiment, the second telescopic shell 122 is also connected to a second drive assembly 123, which is used to drive the synchronous extension and contraction of the two second telescopic shells 122. The second telescopic shell 122 is also provided with a second telescopic control buckle 124, which is used to control the second telescopic shell 122 to be locked and fixed when the second telescopic shell 122 slides into place. For example, the second telescopic shell 122 can be locked to the second fixed support plate 121 to prevent the second telescopic shell 122 from sliding on its own.

[0057] In this embodiment, the structure of the second drive assembly 123 can refer to the first drive assembly 113, wherein the second drive assembly 123 may include: a second rotating center wheel and a second transmission member; wherein the second rotating center wheel is used to rotate under the action of an external force; the second transmission member has two power output ends, the power input end of the second transmission member is connected to the second rotating center wheel, and the two power output ends of the second transmission member are respectively connected to the two second telescopic shells 122, and are used to convert the rotation of the second rotating center wheel into the movement toward or away from each other of the two second telescopic shells. Specifically, by converting the rotation of the second rotating center wheel into the movement toward or away from each other of the two second telescopic shells 122 through the second transmission member, the synchronous telescopic extension of the two second telescopic shells 122 can be achieved, thereby improving the efficiency of telescopic adjustment.

[0058] In one implementation of the present embodiment, the second transmission member may be a winch structure, which includes: a winch wheel is arranged on the second rotating center wheel; one end of two connecting ropes are both arranged on the winch wheel, and the other ends extend in opposite directions and are respectively connected to the two second telescopic shells 122, so that when the winch wheel rotates with the rotating center wheel, the two connecting ropes are wound around the winch wheel for winding, so as to pull the two second telescopic shells 122 to move toward each other; two elastic stretching members correspond to the two second telescopic shells 122, respectively, and the two elastic stretching members are respectively arranged between the corresponding second telescopic shells 122 and the second fixed support plate 121, and the two ends of the two elastic stretching members are respectively connected to the corresponding second telescopic shells 122 and the second fixed support plate 121, so as to elastically deform when the connecting rope pulls the two second telescopic shells 122 to move away from each other, and apply a force to the two second telescopic shells 122 when the connecting rope is released, so as to make the two second telescopic shells 122 move toward each other.

[0059] In another implementation of the present embodiment, the second transmission member may be a winch structure, comprising: a winch wheel, two connecting ropes, and an elastic stretching member; wherein the winch wheel is arranged on the rotating center wheel; one end of the two connecting ropes are arranged on the winch wheel, and the other end extends in two opposite directions and is respectively connected to the two second telescopic shells 122, so that when the winch wheel rotates with the rotating center wheel, the two connecting ropes are wound around the winch wheel for winding, so as to pull the two second telescopic shells to move toward each other, and the two connecting ropes are released from the winch wheel; both ends of the elastic stretching member are respectively connected to the two second telescopic shells 122, so as to elastically deform when the connecting rope pulls the two second telescopic shells to move away from each other, and to apply a force to the two second telescopic shells when the connecting rope is released, so as to make the two second telescopic shells move toward each other.

[0060] In the above two embodiments, the connecting rope can refer to the telescopic chain 1132 of the first driving component 113, and can be correspondingly provided with motion regulations and limit buckles to achieve motion guidance and locking limit.

[0061] In another implementation of the present embodiment, the second transmission member includes: a transmission gear and two racks; wherein the transmission gear is arranged on the second rotating center wheel; the two racks are respectively connected to the two second telescopic shells 122, and the two racks are respectively arranged on both sides of the second rotating center wheel, and the two racks are both meshed with the transmission gear, and when the transmission gear rotates with the rotating center wheel, the two racks drive the two second telescopic shells 122 to move toward or away from each other.

[0062] See also Fig. 9 , which is a schematic diagram of the structure of the flexible connector provided by an embodiment of the present invention. As shown in the figure, the flexible connector 13 includes: a first connector 131, a second connector (not shown in the figure) and a damper 132; wherein the two ends of the damper 132 are respectively connected to the first connector 131 and the second connector, and the first connector 131 and the second connector are respectively used to connect the first telescopic frame 11 and the second telescopic frame 12 to achieve a flexible connection between the two. Specifically, the first connector 131 and the second connector can also be flexible parts, which can reduce the adverse effects of vibration loads on the first telescopic frame 11 and the second telescopic frame 12.

[0063] In this embodiment, the strength detection component 3 may also be provided with a data transmission controller 31 for data storage and data transmission. Fig.10 As shown, the data transmission controller 31 is provided with a digital display screen 311, which can display the rebound strength test value of the concrete component. The data transmission controller 31 can also be provided with a control key 312, which can also read several test history values.

[0064] See also Fig.11 , which is a flowchart of the detection step provided by an embodiment of the present invention. As shown in the figure, the detection step S3 includes the following sub-steps:

[0065] The detection times sub-step S31 determines the initial detection position, detection times and detection interval spacing based on the standard detection height of the strength detection component and the detection width of the beam-column junction area to be detected.

[0066] Specifically, based on the standard detection height of the strength detection component and the width of the beam-column junction area to be detected, the initial detection position, the number of detections and the detection interval spacing are determined to determine the detection process, especially the detection positions of multiple sets of data.

[0067] The data collection sub-step S32 controls the concrete strength detection device to the initial detection position of the beam-column junction area to be detected of the column to be detected, performs strength detection on the column to be detected at the initial detection position, and controls the concrete strength detection device to crawl one by one according to the detection interval to perform strength detection on each corresponding detection position in turn until the concrete strength detection of the beam-column junction area to be detected is completed, and several groups of concrete strength data are obtained.

[0068] Specifically, based on the initial detection position, the number of detections and the detection interval determined in the detection number sub-step S31, the concrete strength detection device is controlled to the initial detection position of the beam-column junction area to be detected of the column to be detected, and the initial detection is performed, and the concrete strength detection device is controlled to crawl one by one according to the detection interval. After each crawling, strength detection is performed on each corresponding detection position, and each detection with a determined number of detections is completed, that is, the concrete strength detection of the beam-column junction area to be detected is completed, and several groups of concrete strength data are obtained.

[0069] In the data processing sub-step S33, strength outlier tests are performed on several groups of concrete strength data in turn. If any strength outlier exists, the strength outlier is removed.

[0070] Specifically, strength outlier tests are performed on several groups of concrete strength data in turn. If strength outliers exist, they are removed. The Grubbs criterion may be used to remove the outliers.

[0071] In the averaging sub-step S34, the average value of the concrete strength data after removing the abnormal strength values ​​is obtained to obtain the average value of the concrete strength data as the concrete strength of the beam-column junction area to be detected.

[0072] Specifically, the average value of the concrete strength data after removing the abnormal strength values ​​can be calculated to obtain the average value of the concrete strength data as the concrete strength of the area to be detected at the junction of the beam and column.

[0073] See also Fig.12 , which is a flowchart of the detection times sub-step provided by an embodiment of the present invention. As shown in the figure, the detection times sub-step S31 includes:

[0074] S311, based on the standard detection height of the strength detection component and the width of the beam-column junction area to be detected, the following formula is used to determine the phase difference detection multiple Δn between the standard detection height of the strength detection component and the width of the beam-column junction area to be detected:

[0075] Δn=floor(K / B),

[0076] Among them, K is the width of the inspection area at the junction of the beam and column, and B is the standard inspection height of the strength detection component.

[0077] S312, set the first preset phase difference multiple n1, the second preset phase difference multiple n2, the third preset phase difference multiple n3 and the fourth preset phase difference multiple n4, and set the first preset detection spacing L1, the second preset detection spacing L2, the third preset detection spacing L3 and the fourth preset detection spacing L4, and also set the preset detection number difference reference value matrix N, set ΔN (ΔN1, ΔN2, ΔN3, ΔN4), wherein the first preset detection number difference reference value ΔN1, the second preset detection number difference reference value ΔN2, the third preset detection number difference reference value ΔN3 and the fourth preset detection number difference reference value ΔN4; according to the relationship between the phase difference detection multiple between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected, and each of the detection times, select each of the preset detection distances as the detection interval spacing of the strength detection component, and determine the detection times:

[0078] When Δn<n1, the first preset detection interval L1 is selected as the detection interval of the intensity detection component, and Δn-ΔN1 is selected as the number of detections;

[0079] When n1≤Δn<n2, a second preset detection interval L2 is selected as the detection interval of the intensity detection component, and Δn-ΔN2 is selected as the number of detections;

[0080] When n2≤Δn<n3, a third preset detection interval L3 is selected as the detection interval of the intensity detection component, and Δn-ΔN3 is selected as the number of detections;

[0081] When n3≤Δn<n4, the fourth preset detection interval L4 is selected as the detection interval of the intensity detection component, and Δn-ΔN4 is selected as the number of detection times.

[0082] Among them, L1, L2, L3, and L4 increase gradually, and ΔN1, ΔN2, ΔN3, and ΔN4 increase gradually, and n1, n2, n3, and n4 increase gradually.

[0083] S313, based on the difference detection multiple Δn between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected, the detection interval spacing of the strength detection component, and the number of detections, the initial detection position is determined according to the following formula:

[0084] ΔH=floor[(KH*f) / 2],

[0085] Wherein, f is the number of detections, K is the width of the beam-column junction area to be detected, and H is the detection interval spacing of the strength detection component.

[0086] It can be seen that by selecting each of the preset detection intervals as the detection intervals of the strength detection component and selecting the corresponding data as the number of times according to the relationship between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected and the relationship between the phase difference detection multiple Δn and the number of detections, the detection intervals and the number of detections can be effectively adjusted according to the relationship between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected, so that the appropriate position can be selected for detection to improve the detection efficiency and accuracy. In addition, when the phase difference detection multiple between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected is larger, the detection interval is increased and the difference in the number of detections is reduced, so that the corresponding position can be accurately detected in a large detection area while ensuring the accuracy of the detection data.

[0087] In summary, the concrete strength detection method provided in the present embodiment is to install the concrete strength detection device on the column to be detected, and adjust the outer support frame of the concrete strength detection device so that its inner contour is adapted to the outer contour of the column to be detected; control the column climbing mechanism of the concrete strength detection device to drive the concrete strength detection device to approach the core detection area of ​​the column to be detected, until the concrete strength detection device moves to the beam-column junction detection area of ​​the column to be detected; control the strength detection component of the concrete strength detection device to simultaneously detect multiple concrete strength detection points in the core detection area of ​​the column to be detected, so as to obtain the concrete strength of the beam-column junction detection area, and can quickly perform detection of multiple points, thereby improving the detection efficiency and solving the problem of low detection efficiency of concrete strength detection at the existing beam-column junction.

[0088] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0089] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for detecting concrete strength, characterized in that: The concrete strength detection device capable of automatically climbing columns is used to detect the concrete strength, including the following steps: An installation step, installing the concrete strength detection device on the column to be detected, and adjusting the outer support frame of the concrete strength detection device so that its inner contour is adapted to the outer contour of the column to be detected; A crawling step, controlling the column climbing mechanism of the concrete strength detection device to drive the concrete strength detection device to approach the core detection area of ​​the column to be detected, until the concrete strength detection device moves to the detection area at the junction of the beam and column of the column to be detected; The detection step controls the strength detection component of the concrete strength detection device to simultaneously detect multiple concrete strength detection points in the core detection area of ​​the column to be detected, so as to obtain the concrete strength of the detection area at the junction of the beam and column.

2. The concrete strength detection method according to claim 1, characterized in that: The concrete strength detection device comprises: An external telescopic support frame is used to surround the concrete column structure; A column climbing mechanism, arranged on the inner side of the outer support frame, for climbing along the axial direction of the concrete column structure to climb to a preset core detection area; The strength detection component is arranged on the outer support frame and is used for simultaneously detecting a plurality of concrete strength detection points.

3. The concrete strength detection method according to claim 2, characterized in that: The outer support frame includes: two first telescopic frames and two second telescopic frames; wherein, The two first telescopic frames are arranged side by side and at intervals, the two second telescopic frames are arranged between the two first telescopic frames, and the two ends of the two second telescopic frames are respectively connected to the two corresponding ends of the two first telescopic frames, and the two first telescopic frames and the two second telescopic frames are arranged to form a rectangular structure.

4. The concrete strength detection method according to claim 3, characterized in that: The first telescopic frame and / or the second telescopic frame comprises: Fixing support plate; Two telescopic shells are mounted on both ends of the fixed support plate, and the two telescopic shells are connected to the fixed support plate in a slidable manner along the length direction of the fixed support plate, so as to perform telescopic adjustment to adjust the overall length of the combination of the fixed support plate and the two telescopic shells.

5. The concrete strength detection method according to claim 4, characterized in that: The telescopic shell is connected to a driving assembly for driving the telescopic shell to extend and retract.

6. The method for detecting concrete strength according to claim 5, characterized in that: The drive assembly comprises: A rotating center wheel, used to rotate under the action of external force; A transmission member, wherein the transmission member has two power output ends, the power input end of the transmission member is connected to the rotating center wheel, and the two power output ends of the transmission member are respectively connected to the two telescopic shells, for converting the rotation of the rotating center wheel into the toward or away movement of the two telescopic shells.

7. The concrete strength detection method according to claim 6, characterized in that: The transmission member comprises: A transmission gear, arranged on the rotating center wheel; Two racks are respectively connected to the two telescopic shells, and the two racks are respectively arranged on both sides of the rotating center wheel, and the two racks are meshed with the transmission gear. When the transmission gear rotates with the rotating center wheel, the two racks drive the two telescopic shells to move toward or away from each other.

8. The method for detecting concrete strength according to any one of claims 1 to 7, characterized in that: The detection step includes the following sub-steps: The detection times sub-step is to determine the initial detection position, the detection times and the detection interval spacing based on the standard detection height of the strength detection component and the detection width of the beam-column junction detection area; The data collection sub-step controls the concrete strength detection device to the initial detection position of the beam-column junction area to be detected of the column to be detected, performs strength detection on the column to be detected at the initial detection position, and controls the concrete strength detection device to crawl one by one according to the detection interval to perform strength detection on each corresponding detection position in sequence, until the concrete strength detection of the beam-column junction area to be detected is completed, and a plurality of groups of concrete strength data are obtained; In the data processing sub-step, a strength outlier test is performed on several groups of concrete strength data in turn, and if there is a strength outlier, the strength outlier is removed; In the averaging sub-step, the average value of the concrete strength data after removing the abnormal strength values ​​is obtained to obtain the average value of the concrete strength data as the concrete strength of the beam-column junction area to be tested.

9. The method for detecting concrete strength according to claim 8, characterized in that: The detection times sub-step specifically includes: Based on the standard detection height of the strength detection component and the width of the beam-column junction area to be detected, the phase difference detection multiple Δn between the standard detection height of the strength detection component and the width of the beam-column junction area to be detected is determined using the following formula: Δn=floor(K / B), Among them, K is the width of the inspection area at the junction of the beam and column, and B is the standard inspection height of the strength inspection component; A first preset phase difference multiple n1, a second preset phase difference multiple n2, a third preset phase difference multiple n3 and a fourth preset phase difference multiple n4 are set, and a first preset detection spacing L1, a second preset detection spacing L2, a third preset detection spacing L3 and a fourth preset detection spacing L4 are set, and a preset detection number difference reference value matrix N is set, and ΔN (ΔN1, ΔN2, ΔN3, ΔN4) is set, wherein the first preset detection number difference reference value ΔN1, the second preset detection number difference reference value ΔN2, the third preset detection number difference reference value ΔN3 and the fourth preset detection number difference reference value ΔN4 are set; according to the relationship between the phase difference detection multiple between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected, and each of the detection times, each of the preset detection spacings is selected as the detection interval spacing of the strength detection component, and the detection times are determined: When Δn<n1, the first preset detection interval L1 is selected as the detection interval of the intensity detection component, and Δn-ΔN1 is selected as the number of detections; When n1≤Δn<n2, a second preset detection interval L2 is selected as the detection interval of the intensity detection component, and Δn-ΔN2 is selected as the number of detections; When n2≤Δn<n3, a third preset detection interval L3 is selected as the detection interval of the intensity detection component, and Δn-ΔN3 is selected as the number of detections; When n3≤Δn<n4, the fourth preset detection interval L4 is selected as the detection interval of the intensity detection component, and Δn-ΔN4 is selected as the number of detections; Based on the difference detection multiple Δn between the standard detection height of the strength detection component and the width to be detected of the beam-column junction area to be detected, the detection interval spacing of the strength detection component, and the number of detections, the initial detection position is determined according to the following formula: ΔH=floor[(KH*f) / 2], Wherein, f is the number of detections, K is the width of the beam-column junction area to be detected, and H is the detection interval spacing of the strength detection component.

10. The concrete strength detection method according to claim 8, characterized in that: The data processing sub-step uses the Grubbs criterion to eliminate outliers.

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