A device and method for detecting the compactness of a steel pipe concrete

Abstract

The application discloses a kind of steel pipe concrete compactness detection device and detection method, it is related to steel pipe concrete nondestructive testing technical field, including lower fixed frame and upper fixed frame, interface of lower fixed frame and upper fixed frame is fixedly installed with connecting lug, connecting lug is connected by bolt;And the inner side wall of lower fixed frame and upper fixed frame is equally spaced and installed with first telescopic rod, horizontal motor is installed on the first telescopic rod located in lower fixed frame, longitudinal motor is installed on the first telescopic rod located in upper fixed frame;The upper surface of lower fixed frame is provided with T-shaped guide rail, T-shaped guide rail is slidably connected with the lower end of connecting plate, the upper end of connecting plate is fixedly connected with upper fixed frame;The inner side wall of connecting plate is respectively oppositely installed with ultrasonic nondestructive measurement assembly and knock measurement assembly.The application discloses a kind of steel pipe concrete compactness detection device and detection method, realize to steel pipe concrete column carries out two-dimensional non-destructive, high-precision measurement, and speed up measurement progress.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-destructive testing of concrete-filled steel tubes, and particularly relates to a concrete-filled steel tube density detection device and a detection method. BACKGROUND

[0002] At present, the concrete-filled steel tube density detection mainly adopts three methods of core sampling, manual knocking and ultrasonic non-destructive testing. The core sampling method directly observes the interface state of the concrete and the steel tube by drilling a core sample and measures the void height, which is intuitive and reliable, but is destructive detection, which may damage the structural integrity and cannot comprehensively evaluate the overall density. The manual knocking method qualitatively judges the defect position by knocking the tone, but its precision depends on the experience of the operator, and cannot quantitatively analyze the void height or density distribution. The ultrasonic non-destructive testing method evaluates the concrete density by measuring the ultrasonic parameters, but the existing detection device mainly adopts a single-point excitation-single-point receiving mode, which can only realize one-dimensional void height calculation in the local area, and cannot perform two-dimensional spatial characterization on the void area and position.

[0003] The core problems of the prior art mainly include the following three aspects: first, the detection dimension is limited, the single-point detection mode is difficult to cover the full defects of the complex structure, cannot generate a two-dimensional density distribution map, and leads to incomplete evaluation of engineering hazards; second, the operation efficiency is low, the traditional device lacks modular design, the installation is complicated, it is difficult to realize the rapid layout of multiple measuring points, and the detection period is long; finally, the measurement means is single, and lacks corresponding comparison, which leads to inaccurate measurement data.

[0004] In addition, the intelligent degree in the measurement process is low, and a large amount of human intervention is required, which seriously restricts the application effect and efficiency of the existing technology in actual engineering.

[0005] How to design a concrete-filled steel tube density detection device and a detection method to realize intelligent two-dimensional non-destructive and high-precision measurement of the concrete-filled steel tube column, reduce the amount of manual use and speed up the measurement progress has become a technical problem to be solved by the technical personnel in the field. SUMMARY

[0006] The purpose of the present application is to provide a concrete-filled steel tube density detection device and a detection method, and to solve the problems listed in the background art.

[0007] To solve the above technical problems, the present application adopts the following technical solutions:

[0008] The concrete-filled steel tube density detection device of the present application comprises a lower fixed frame and an upper fixed frame, a connecting lug is fixedly installed at the interface of the lower fixed frame and the upper fixed frame, and the connecting lug is connected through a bolt;

[0009] And the inner side wall of the lower fixed frame and the upper fixed frame is equally spaced with the first telescopic rod, the first telescopic rod on the lower fixed frame is installed with a horizontal motor, the first telescopic rod on the upper fixed frame is installed with a vertical motor;

[0010] The upper surface of the lower fixed frame is provided with a T-shaped guide rail, the T-shaped guide rail is slidably connected with the lower end of the connecting plate, and the upper end of the connecting plate is fixedly connected with the upper fixed frame;

[0011] The inner side wall of the connecting plate is respectively provided with an ultrasonic nondestructive testing assembly and a knocking measurement assembly;

[0012] It also includes a handheld control terminal and two limiting blocks, the ultrasonic nondestructive testing assembly and the knocking measurement assembly are electrically connected with the handheld control terminal;

[0013] Two limiting blocks are oppositely installed on the lower surface of the upper fixed frame, and the limiting blocks are electrically connected with the handheld control terminal;

[0014] The output end of the horizontal motor and the vertical motor is fixedly installed with a wheel set;

[0015] The ultrasonic nondestructive testing assembly includes an ultrasonic generator and an ultrasonic receiver, the outer arc surface of the ultrasonic generator and the ultrasonic receiver is installed on the inner arc surface of the connecting plate through a third telescopic rod;

[0016] And the ultrasonic generator and the ultrasonic receiver are oppositely arranged;

[0017] The knocking measurement assembly includes a hammer head and a second telescopic rod, one end of the second telescopic rod is fixedly installed on the inner arc surface of the connecting plate, and the other end of the second telescopic rod is installed with the hammer head;

[0018] The second telescopic rod is equally spaced arranged on the inner arc surface of the connecting plate along the axial direction of the steel pipe;

[0019] It also includes a radio receiver, and the radio receiver is electrically connected with the handheld control terminal.

[0020] A detection method of a steel pipe concrete compactness detection device, specifically comprising the following steps:

[0021] S1, assembly, the lower fixed frame and the upper fixed frame are fixedly connected, and the first telescopic rod is adjusted, so that the wheel set abuts against the outer side wall of the steel pipe;

[0022] S2, zero, adjust the second telescopic rod and the third telescopic rod, control the second telescopic rod to make the hammer head knock the steel pipe, and receive the sound through the radio, and send the audio information to the handheld control terminal for database comparison, control the third telescopic rod to control the ultrasonic generator and the ultrasonic receiver to abut against the outer side wall of the steel pipe, start the ultrasonic generator and the ultrasonic receiver to calibrate the initial measurement data, and abut the end of the ultrasonic generator against the limit block;

[0023] S3, radial measurement, the vertical motor drives the upper fixing frame, the connecting plate, the ultrasonic nondestructive measurement assembly and the knocking measurement assembly to rotate around the outer side wall of the steel pipe for measurement, after the other end of the ultrasonic nondestructive measurement assembly abuts against the limit block, the radial measurement is completed, and the measurement data is transmitted to the handheld control terminal for storage;

[0024] S4, axial movement, the first telescopic rod provided with the vertical motor is retracted to be separated from the steel pipe, the horizontal motor is started, and drives the lower fixing frame to move upward along the axial direction of the steel pipe, and the position of the upper fixing frame is stopped when the radial measurement is performed;

[0025] S5, repeat the steps S3 and S4 until the upper fixing frame is located at the top end position of the steel pipe;

[0026] S6, disassembly, the measurement device is lowered to the initial position as a whole, the lower fixing frame and the upper fixing frame are removed from the outer side wall of the steel pipe, and the next measurement operation of the concrete density in the steel pipe is performed;

[0027] S7, summary, the handheld control terminal forms a data table of the concrete density in the steel pipe along the axial and radial directions of the steel pipe, forms an image according to the data table, and verifies the image with the knocking data;

[0028] S8, labeling, the data table and the image are packaged and named with the number corresponding to the steel pipe concrete, so that the later viewing and tracing are facilitated.

[0029] Compared with the prior art, the beneficial technical effects of the present application are:

[0030] The first telescopic rod is arranged on the inner side wall of the lower fixing frame and the upper fixing frame, the horizontal motor, the vertical motor and the wheel set are arranged at the end of the first telescopic rod, the measurement device is moved along the outer side wall of the steel pipe for radial and axial movement to complete the measurement operation, the amount of manual use is greatly reduced, and the measurement axis does not need to be drawn on the outer side wall of the steel pipe;

[0031] Meanwhile, the measurement data of the ultrasonic nondestructive measurement assembly and the knocking measurement assembly are matched to ensure the accuracy of the measurement data. BRIEF DESCRIPTION OF DRAWINGS

[0032] The present application will be further described below in conjunction with the drawings.

[0033] Fig. 1 It is a three-dimensional schematic view of a kind of steel pipe concrete compactness detection device of the present application;

[0034] Fig. 2 It is a top view schematic view of a kind of steel pipe concrete compactness detection device of the present application.

[0035] Mark for explanation:1- lower fixed frame;2-T type guide rail;3- connecting plate;4- first telescopic rod;5- transverse motor;6- connecting lug;7- upper fixed frame;8- vertical motor;9- ultrasonic generator;10- hammer head;11- second telescopic rod;12- ultrasonic receiver;13- third telescopic rod. Specific embodiments

[0036] In order to make the technical problem to be solved by the present application, technical scheme and beneficial effects more clearly, the following is combined with the drawings and examples, further detailed description of the present application is made.It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0037] As Figs. 1-2 Indicated, a kind of steel pipe concrete compactness detection device, including lower fixed frame 1 and upper fixed frame 7, the interface of the lower fixed frame 1 with the upper fixed frame 7 is fixedly installed with connecting lug 6, the connecting lug 6 is connected by bolt;

[0038] And the inner side wall of the lower fixed frame 1 with the upper fixed frame 7 is equally spaced and installed with first telescopic rod 4, transverse motor 5 is installed on the first telescopic rod 4 of the lower fixed frame 1, vertical motor 8 is installed on the first telescopic rod 4 of the upper fixed frame 7;

[0039] The upper surface of the lower fixed frame 1 is provided with T type guide rail 2, the T type guide rail 2 is slidably connected with the lower end of connecting plate 3, the upper end of the connecting plate 3 is fixedly connected with the upper fixed frame 7;

[0040] The inner side wall of the connecting plate 3 is respectively oppositely installed with ultrasonic nondestructive testing assembly and knocking measurement component, by cooperating ultrasonic nondestructive testing assembly with knocking measurement component, and comparing and verifying measurement data with each other, the accuracy of measurement data is guaranteed, and measurement error is reduced;

[0041] It also includes hand-held control terminal and two limit blocks, the ultrasonic nondestructive testing assembly and the knocking measurement component are electrically connected with the hand-held control terminal, further, hand-held control terminal is embedded with the knocking data large model for different types of steel pipe concrete column, to replace the method of artificial experience judgment compactness, guarantee the accuracy of knocking identification;

[0042] The two limiting blocks are installed opposite each other on the lower surface of the upper fixing frame 7. The limiting blocks are electrically connected to the handheld control terminal. The limiting blocks can control the ultrasonic non-destructive measurement component and the impact measurement component to move radially along the outer wall of the steel pipe, thereby completing the data measurement of the radial concrete density of the steel pipe, reducing unnecessary measurement work and improving measurement efficiency.

[0043] Specifically, both the output ends of the horizontal motor 5 and the vertical motor 8 are fixedly equipped with wheel sets, which facilitates the relative movement of the lower fixed frame and the upper fixed frame along the outer side wall of the steel pipe.

[0044] Specifically, the ultrasonic non-destructive testing component includes an ultrasonic generator 9 and an ultrasonic receiver 12. The outer arc surfaces of the ultrasonic generator 9 and the ultrasonic receiver 12 are both mounted on the inner arc surface of the connecting plate 3 via a third telescopic rod 13, which facilitates the ultrasonic generator 9 and the ultrasonic receiver 12 to abut against the outer wall of the steel pipe.

[0045] Furthermore, the ultrasonic generator 9 and the ultrasonic receiver 12 are arranged opposite to each other.

[0046] Specifically, the impact measurement assembly includes a hammer head 10 and a second telescopic rod 11. One end of the second telescopic rod 11 is fixedly installed on the inner arc surface of the connecting plate 3, and the other end of the second telescopic rod 11 is equipped with the hammer head 10.

[0047] Specifically, the second telescopic rod 11 is arranged at equal intervals along the axial direction of the steel pipe on the inner arc surface of the connecting plate 3;

[0048] It also includes a microphone, which is electrically connected to the handheld control terminal. The microphone can convert the sound waves emitted after the hammer strikes the steel pipe into electrical signals, transmit them to the handheld control terminal, and compare them with the large model of striking data to ensure the accuracy of striking sound recognition.

[0049] A method for detecting the density of steel-concrete composite pipes includes the following steps:

[0050] S1. Assembly: Fix the lower fixed frame 1 and the upper fixed frame 7 together, and adjust the first telescopic rod 4 so that the wheel set abuts against the outer wall of the steel pipe.

[0051] S2, Zero, adjust the second telescopic rod 11 and the third telescopic rod 13, control the second telescopic rod 11 to make the hammer head 10 strike the steel pipe, and pick up the sound through the microphone, and send the audio information to the handheld control terminal for database comparison, control the third telescopic rod 13 to control the ultrasonic generator 9 and ultrasonic receiver 12 to abut against the outer wall of the steel pipe, start the ultrasonic generator 9 and ultrasonic receiver 12 to calibrate the initial measurement data, and abut one end of the ultrasonic generator 9 against the limit block;

[0052] S3, radial measurement, the longitudinal motor 8 drives the upper fixing frame 7, the connecting plate 3 and the ultrasonic non-destructive measurement assembly and the knocking measurement assembly to rotate around the outer wall of the steel pipe for measurement, after the other end of the ultrasonic non-destructive measurement assembly abuts against the limiting block, the radial measurement is completed, and the measurement data is transmitted to the handheld control terminal for storage;

[0053] S4, axial movement, the first telescopic rod 4 provided with the longitudinal motor 8 is retracted to be separated from the steel pipe, the transverse motor 5 is started to drive the lower fixing frame 1 to move upward along the axial direction of the steel pipe, and the position of the upper fixing frame 7 is stopped when the radial measurement is performed;

[0054] S5, repeating the steps S3 and S4 until the upper fixing frame 7 is located at the top end position of the steel pipe;

[0055] S6, disassembly, the measurement device is lowered to the initial position as a whole, the lower fixing frame 1 and the upper fixing frame 7 are disassembled from the outer wall of the steel pipe, and the next measurement operation of the concrete density in the steel pipe is performed;

[0056] S7, summary, the handheld control terminal forms a data table of the compaction state of the concrete in the steel pipe along the axial and radial directions of the steel pipe, forms an image according to the data table, and verifies the image with the knocking data;

[0057] S8, labeling, the data table and the image are packaged and named with the number corresponding to the steel pipe concrete, for example, KZ (frame column) 001, KZZ (frame support column) 001 and / or XZ (core column) 001, so as to facilitate later viewing and tracing.

[0058] In addition, the control program and the large model of the knocking data in the handheld control terminal are known, and those skilled in the art can realize them, which will not be described here.

[0059] It should be noted that the terms "include", "contain" or any other variants thereof in the present text are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0060] The above-described embodiments are only descriptions of the preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements of the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A device for detecting the compactness of a concrete filled steel tube, characterized by: Including lower fixed frame (1) and upper fixed frame (7), the interface of lower fixed frame (1) and upper fixed frame (7) is fixedly installed with connecting lug (6), and the connecting lug (6) is connected by bolt; And the inner side wall of lower fixed frame (1) and upper fixed frame (7) is equally spacedly installed with first telescopic rod (4), the first telescopic rod (4) located in lower fixed frame (1) is installed with horizontal motor (5), and the first telescopic rod (4) located in upper fixed frame (7) is installed with vertical motor (8); The upper surface of lower fixed frame (1) is provided with T-shaped guide rail (2), the T-shaped guide rail (2) is slidably connected with the lower end of connecting plate (3), and the upper end of connecting plate (3) is fixedly connected with upper fixed frame (7); The inner side wall of connecting plate (3) is respectively oppositely installed with ultrasonic nondestructive testing assembly and knocking measurement assembly; It also includes handheld control terminal and two limiting blocks, and ultrasonic nondestructive testing assembly and knocking measurement assembly are electrically connected with handheld control terminal; Two limiting blocks are oppositely installed on the lower surface of upper fixed frame (7), and the limiting blocks are electrically connected with handheld control terminal; The output end of horizontal motor (5) and vertical motor (8) is fixedly installed with wheel set; The ultrasonic nondestructive testing assembly includes ultrasonic generator (9) and ultrasonic receiver (12), and the outer arc surface of ultrasonic generator (9) and ultrasonic receiver (12) is installed on the inner arc surface of connecting plate (3) through third telescopic rod (13); And ultrasonic generator (9) and ultrasonic receiver (12) are oppositely arranged; The knocking measurement assembly includes hammer head (10) and second telescopic rod (11), one end of second telescopic rod (11) is fixedly installed on the inner arc surface of connecting plate (3), and the other end of second telescopic rod (11) is installed with hammer head (10); The second telescopic rod (11) is equally spacedly arranged on the inner arc surface of connecting plate (3) along the axial direction of steel pipe; It also includes a radio receiver, and the radio receiver is electrically connected with the handheld control terminal. 2.A method for detecting the compactness of a steel pipe concrete, which is completed by using the steel pipe concrete compactness detection device of claim 1, and specifically includes the following steps: S1, assembly, fixedly connecting lower fixed frame (1) and upper fixed frame (7), and adjusting first telescopic rod (4) to make wheel set abut against the outer side wall of steel pipe; S2, zeroing, adjusting second telescopic rod (11) and third telescopic rod (13), controlling second telescopic rod (11) to make hammer head (10) knock steel pipe, and receiving audio through radio receiver, and sending audio information to handheld control terminal for database comparison, controlling third telescopic rod (13) to control ultrasonic generator (9) and ultrasonic receiver (12) to abut against the outer side wall of steel pipe, starting ultrasonic generator (9) and ultrasonic receiver (12) to calibrate initial measurement data, and making one end of ultrasonic generator (9) abut against limiting block. S3, radial measurement, longitudinal motor (8) to start the drive fixed frame (7), connecting plate (3) and ultrasonic non-destructive measurement assembly and knock measurement assembly around the outer wall of the steel pipe rotation measurement, ultrasonic generator (9) the other end with the limit block after the abutment, radial measurement ends, the measurement data transmission to handheld control terminal save; S4, axial movement, the first telescopic rod (4) installed with longitudinal motor (8) is retracted from the contact with the steel pipe, transverse motor (5) is started, drive the lower fixed frame (1) along the axial direction of the steel pipe to move up, the position of the upper fixed frame (7) stops when the radial measurement step is performed; S5, repeat S3, S4 step, until the upper fixed frame (7) is located at the top of the steel pipe position; S6, disassembly, the whole measurement device is lowered to the initial position, the lower fixed frame (1) and the upper fixed frame (7) are removed from the outer wall of the steel pipe, and the next steel pipe concrete density measurement operation is performed; S7, summary, the handheld control terminal forms a data table of the steel pipe concrete density along the axial and radial direction of the steel pipe, forms an image according to the data table, and verifies with the knock data; S8, label, the data table and the image are packaged and named with the corresponding number of the steel pipe concrete, which is convenient for later viewing and tracing.

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