CN110568068A - Steel core concrete column compactness detects frock - Google Patents
Steel core concrete column compactness detects frock Download PDFInfo
- Publication number
- CN110568068A CN110568068A CN201910821450.XA CN201910821450A CN110568068A CN 110568068 A CN110568068 A CN 110568068A CN 201910821450 A CN201910821450 A CN 201910821450A CN 110568068 A CN110568068 A CN 110568068A
- Authority
- CN
- China
- Prior art keywords
- column
- frame
- hammer
- tensioning
- concrete column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/045—Analysing solids by imparting shocks to the workpiece and detecting the vibrations or the acoustic waves caused by the shocks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0232—Glass, ceramics, concrete or stone
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/028—Material parameters
- G01N2291/02818—Density, viscosity
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
the invention discloses a steel tube concrete column compactness detection tool which comprises a fixing ring sleeved on a concrete column, wherein a tensioning frame and a U-shaped fixing frame are fixed on the fixing ring, a tensioning assembly is arranged on the tensioning frame, and a height fixing assembly is arranged on the fixing frame; the fixed frame is provided with two permanent magnet plates with opposite and parallel unlike poles, and a sound testing hammer is rotatably connected in the fixed frame by using a pin shaft; the tensioning assembly comprises a sliding rod which is connected on the tensioning frame in a penetrating and sliding mode. Has the advantages that: the solenoid produces electric current and makes the soft bag post become the stereoplasm state and stop the examination sound hammer and put down when the examination sound hammer swings the in-process downwards, and softens after the examination sound hammer is totally static and make the examination sound hammer continue to put down, realizes the automatic control to examination sound hammer pendulum position, avoids all needing manual control at every turn to waste time and energy like, also avoids the potential safety hazard that the staff produced in the operation of ascending a height when need not manual operation.
Description
Technical Field
The invention relates to the technical field of concrete detection, in particular to a tool for detecting compactness of a concrete filled steel tubular column.
Background
at present, three common methods for detecting the compactness of the concrete filled steel tubular column are generally adopted:
The first one is: the core drilling method is that holes are drilled on a formed concrete-filled steel tubular column for core pulling, the quality of concrete in the column core is judged according to the quality condition of a drilled core sample, the quality condition of the whole concrete column cannot be comprehensively judged by the core drilling method, the limitation is large, the risk of damaging the integrity of the concrete column exists, and the stress of the concrete column can be weakened seriously; in addition, the core drilling method has the defects of long period, high cost, difficult erection of core drilling equipment on the steel pipe concrete column and the like.
The second method is as follows: in the ultrasonic method, a transmitting transducer is used for radiating high-frequency vibration at one end of the outer diameter of the steel pipe and transmits the high-frequency vibration to a receiving transducer at the other end of the outer diameter of the steel pipe through the center of the steel pipe, ultrasonic energy is attenuated at a defect position, and relative changes of sound time, sound amplitude and frequency when ultrasonic waves reach the receiving transducer are caused. The method is high in cost and seriously influenced by construction environment, so that the method is high in theoretical performance but low in feasibility in the actual construction process.
The third is: the knocking method is suitable for generally investigating the quality of column core concrete, completely depends on the technology and experience of technicians, and is greatly influenced by subjective factors; moreover, the knocking method lacks theoretical basis and data for archiving, and is inconvenient for construction technology management and quality detection technology management; in addition, the tapping method is difficult to accurately judge for a concrete filled steel tubular column with a large wall thickness.
Through retrieval, granted patent with application number CN201510430064.X discloses a steel core concrete column compactness detects frock, utilizes the structural feature of knocking hammer, and when being drawn to the eminence and contact with the steel pipe, can realize free falling body motion after loosening the hand, and because the starting point of free falling body motion at every turn is the same, and the knocking hammer weight is unchangeable to ensure that the energy of knocking at every turn is unanimous, therefore the sound wave feedback that obtains has the homoconditionality. According to the scheme, in the implementation process, the knocking hammer needs to be manually controlled to move to a high place and fall, the steel pipe concrete column in the prior art is generally high, and if the knocking hammer needs to be manually controlled to fall, workers need to continuously perform climbing operation, so that the working strength is high, and certain dangerousness is realized.
disclosure of Invention
The invention aims to solve the problem that manual continuous ascending operation is needed for detecting the compactness of a concrete filled steel tubular column in the prior art, and provides a concrete filled steel tubular column compactness detecting tool.
In order to achieve the purpose, the invention adopts the following technical scheme: the steel tube concrete column compactness detection tool comprises a fixing ring sleeved on a concrete column, wherein a tensioning frame and a U-shaped fixing frame are fixed on the fixing ring, a tensioning assembly is arranged on the tensioning frame, and a height fixing assembly is arranged on the fixing frame; the fixed frame is provided with two permanent magnet plates with opposite and parallel unlike poles, and a sound testing hammer is rotatably connected in the fixed frame by using a pin shaft;
The tensioning assembly comprises a sliding rod which penetrates through the tensioning frame and is connected to the tensioning frame in a sliding mode, one end, close to the concrete column, of the sliding rod is fixedly provided with a supporting block, and a metal spring is sleeved on the sliding rod;
The height fixing assembly comprises a soft bag column embedded in the side wall of a U-shaped groove of the fixing frame, the soft bag column is of a hollow bag-shaped structure made of rubber, two ends of the soft bag column are provided with an electrode respectively, and electrorheological fluid is filled in the soft bag column;
a linear electromagnetic coil is embedded in the sound testing hammer, two ends of the electromagnetic coil are electrically connected with two electrodes, and the electrodes are connected with a first diode in series;
a plurality of sound sensors are fixed on the fixing ring.
in foretell steel core concrete column compactness detects frock, one of them be fixed with a motor on the permanent magnetism board, the motor is located the mount below and is close to concrete column department, the output shaft of motor is parallel with the horizontal plane and has welded an swash plate, eccentric welding has a driving lever parallel with the motor output shaft on the swash plate, the swash plate is a circular panel and not perpendicular with the horizontal plane.
In the tool for detecting the compactness of the concrete filled steel tubular column, an inductance coil is connected in series between the electromagnetic coil and one of the electrodes.
in the tool for detecting the compactness of the concrete filled steel tubular column, two ends of the metal spring are connected with the electromagnetic coil in series, the metal spring is connected with the soft capsule column in parallel, a second diode is connected in series in a branch where the metal spring is located, the first diode and the second diode are connected in parallel, and the current conduction directions of the first diode and the second diode are opposite.
Compared with the prior art, the invention has the advantages that:
1. The soft capsule column is arranged, the sound testing hammer can collide with the soft capsule column when swinging downwards each time to enable the sound testing hammer to be temporarily static, so that the sound testing hammer can swing downwards from the partial structure of the soft capsule column and collide with the concrete column each time, namely, the equal force of the soft capsule column colliding the concrete column each time is automatically realized, and the accuracy of a measuring result is ensured;
2. The two permanent magnet plates and the electromagnetic coils are arranged, the electromagnetic coils generate current in the downward swinging process of the sound testing hammer to enable the soft capsule column to be in a hard state and block the sound testing hammer from swinging downwards, and the sound testing hammer is softened after being completely static to enable the sound testing hammer to continuously swing downwards, so that the automatic control of the swinging position of the sound testing hammer is realized, the time and labor are saved when manual control is needed each time, manual operation is not needed, and the potential safety hazard generated by ascending operation of workers is avoided;
3. the motor and the inclined plate are arranged, when the test sound hammer moves to the bottommost end, the motor drives the inclined plate to rotate so that the test sound hammer swings upwards to an initial position, and the soft bag column is not electrified under the action of the diode in the process, so that the limit effect of the soft bag column on the test sound hammer is avoided;
4. The metal spring and the abutting block are arranged, under the synergistic action of the diodes, in the downward movement process of the sound testing hammer, the abutting block is tightly abutted against the concrete column to ensure that the position of the fixing ring relative to the concrete column is fixed, otherwise, in the upward swinging process of the sound testing hammer, the metal spring shrinks to reduce the abutting force of the abutting block and the concrete column, the fixing ring moves downwards for a certain distance under the action of gravity, the automatic adjustment of the position of the fixing ring is realized, the operation of checking the compactness of each part of the concrete column is realized without manually adjusting the position of the fixing ring, and the manual operation in the checking process is thoroughly released.
Drawings
FIG. 1 is a schematic structural diagram of a tool for detecting compactness of a concrete filled steel tubular column provided by the invention;
FIG. 2 is a top view of the tool for detecting compactness of a concrete filled steel tubular column provided by the invention;
FIG. 3 is a schematic circuit diagram of a tool for detecting compactness of a concrete filled steel tubular column according to the present invention;
FIG. 4 is a cross-sectional view of a portion of the mounting bracket of the present invention;
fig. 5 is an enlarged view of the swash plate and the lever portion of the present invention.
In the figure: the device comprises a fixing ring 1, a tensioning frame 2, a fixing frame 3, a sliding rod 4, a resisting block 5, a metal spring 6, a test sound hammer 7, an electromagnetic coil 8, a permanent magnetic plate 9, a soft capsule column 10, a motor 11, an inclined plate 12, a deflector rod 13, an inductance coil 14 and an electrode 15.
Detailed Description
the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
referring to fig. 1-5, the steel tube concrete column compactness detection tool is a fixing ring 1 sleeved on a concrete column, a tensioning frame 2 and a U-shaped fixing frame 3 are fixed on the fixing ring 1, a tensioning assembly is arranged on the tensioning frame 2, and a height fixing assembly is arranged on the fixing frame 3; two opposite-pole and parallel permanent magnet plates 9 are arranged on the fixed frame 3, and a sound testing hammer 7 is rotatably connected in the fixed frame 3 by using a pin shaft;
The tensioning assembly comprises a sliding rod 4 which penetrates through the tensioning frame 2 and is connected with the tensioning frame in a sliding mode, one end, close to the concrete column, of the sliding rod 4 is fixedly provided with a supporting block 5, and a metal spring 6 is sleeved on the sliding rod 4;
the height-fixing component comprises a soft bag column 10 embedded in the side wall of the U-shaped groove of the fixing frame 3, the soft bag column 10 is of a hollow bag-shaped structure made of rubber, two ends of the soft bag column 10 are respectively provided with an electrode 15, and the soft bag column 10 is filled with electrorheological fluid;
A linear electromagnetic coil 8 is embedded in the sound testing hammer 7, two ends of the electromagnetic coil 8 are electrically connected with two electrodes 15, and the electrodes 15 are connected with a first diode in series;
A plurality of acoustic sensors are fixed to the fixed ring 1.
a motor 11 is fixed on one permanent magnet plate 9, the motor 11 is positioned below the fixed frame 3 and close to the concrete column, an output shaft of the motor 11 is parallel to the horizontal plane and is welded with an inclined plate 12, a deflector rod 13 parallel to the output shaft of the motor 11 is eccentrically welded on the inclined plate 12, the inclined plate 12 is a round plate and is not vertical to the horizontal plane, the deflector rod can be contacted with the test hammer 7 only when the deflector rod 13 rotates to the lowest point for a period of time in the rotating process of the inclined plate 12, and therefore the test hammer 7 is stirred by the motor 11 to be placed upwards to the initial position;
An inductance coil 14 is connected in series between the electromagnetic coil 8 and one of the electrodes 15, when the test hammer 7 swings downwards from the highest point to generate current which passes through the inductance coil 14, the current at the moment is changed current, so that the inductance coil 14 can generate a magnetic field and store certain electric energy, when the test hammer 7 collides with the soft capsule column 10, the current generated by the electromagnetic coil 8 disappears instantly, but the test hammer 7 in the state is not completely static, at the moment, the inductance coil 14 can discharge the current stored in the inductance coil and enable the two electrodes 15 to be electrified continuously for a period of time, so that the phenomenon that the test hammer 7 which is not completely static swings downwards to cause different impact strength with the concrete column each time is avoided, after the electric energy in the inductance coil 14 disappears completely, the test hammer 7 is completely static, and at the moment, the electrorheological fluid in the soft capsule column 19 is restored to be liquid, so that the test hammer 7 continuously swings downwards;
The two ends of the metal spring 6 are connected with the electromagnetic coil 8 in series, the metal spring 6 is connected with the soft capsule column 10 in parallel, a second diode is connected in series in a branch where the metal spring 6 is located, the first diode and the second diode are connected in parallel, the current conducting directions of the first diode and the second diode are opposite, it is guaranteed that the current generated by downward swinging of the test hammer 7 only passes through the two electrodes 15, and the current generated by upward movement of the test hammer 7 only passes through the metal spring 6.
in the invention, a storage battery (not shown in the figure) is arranged on the fixing ring 1 to supply power to the motor 11 and the plurality of sensors, the fixing ring 1 is sleeved at the top end of the concrete column during detection, the test sound hammer 7 is lifted to be positioned at the upper end of the soft bag column 10, which is an initial state, and in the state, the metal spring 6 pushes the abutting block 5 to abut against the concrete column, so that the fixing ring 1 cannot move downwards; a magnetic field exists between the two opposite permanent magnet plates 9, when the sound testing hammer 7 is static, the electromagnetic coil 8 does not cut a magnetic induction line, and at the moment, no current exists between the two electrodes 15;
The test hammer 7 is freely dropped by a loose hand to drive the electromagnetic coil 8 to cut the magnetic induction line to generate current, when the test hammer 7 moves downwards, the current direction is the same as the conduction direction of the first diode, at the moment, the current exists between the two electrodes 15, even if the electrorheological fluid is electrified, the electrorheological fluid is changed into a solid state and cannot be deformed (the electrorheological fluid is a suspension liquid under the normal condition, the electrorheological fluid can be changed into a liquid-solid state under the action of an electric field, when the intensity of the external electric field is greatly lower than a certain critical value, the electrorheological fluid is in a liquid state, and when the intensity of the electric field is greatly higher than the critical value; the sound testing hammer 7 collides with the soft capsule column 10 and cannot move continuously, after the sound testing hammer 7 is contacted with the soft capsule column 10 for a short time and is static, the current between the two electrodes 15 disappears, at the moment, the gravity of the sound testing hammer 7 extrudes the soft capsule column 10 to deform the soft capsule column until the sound testing hammer 7 passes through the soft capsule column 10 and moves downwards to finally collide with the concrete column, and the sound generated by collision is transmitted to the sound sensor and is recorded.
The sound sensor receives sound and then transmits a signal to a controller (not shown in the figure) of the fixing ring, the controller controls an output shaft of the motor 11 to rotate for one circle, the inclined plate 12 rotates synchronously with the output shaft of the motor 11, and the inclined plate 12 is obliquely arranged, so that the shift lever 13 cannot be contacted with the test hammer 7 when positioned at a high point, but the shift lever 13 rotates to a low point and can be contacted with the test hammer 7, the test hammer 7 is driven to move reversely to the upper part of the soft capsule column 10, and the test hammer 7 is reset to an initial state.
when the sound testing hammer 7 moves upwards under the action of the shift lever 13, the electromagnetic coil 8 cuts a magnetic induction line to generate reverse current, the current is opposite to the direction of the conducting current of the second diode to electrify the metal spring 6, each circle of metal of the metal spring 6 generates a magnetic field in the same direction, all circles of metal attract each other to be close to enable the metal spring 6 to be shortened, when the metal spring 6 is shortened, the abutting pressure of the abutting block 5 and the concrete column is reduced and is not enough to enable the fixing ring 1 to maintain the original position and slide downwards, namely, the whole device moves downwards for a certain distance relative to the concrete column, the automatic downward movement of the whole device is realized, and the downward movement positions are approximately equal;
the sound testing hammer 7 swings downwards again after swinging up to the highest point, the direction of current generated by the electromagnetic coil 8 is opposite to the direction of current conducted by the second diode, at the moment, the metal spring 6 extends again to enable the abutting block 5 to abut against the concrete column again to limit the fixing ring, and the whole device is restored to the initial state and automatically repeats the actions until the device moves to the lowest end of the concrete column.
it is worth mentioning that: this device can set up displacement sensor on solid fixed ring 1 for the height that solid fixed ring 1 followed the decline is recorded, is convenient for calculate the position of strikeing that sound sensor record sound corresponds, and the corresponding position to the concrete column can be easily corresponded to sound signal when post-processing sound information.
Although terms such as the fixed ring 1, the tension frame 2, the fixed frame 3, the sliding rod 4, the resisting block 5, the metal spring 6, the test hammer 7, the electromagnetic coil 8, the permanent magnet plate 9, the soft capsule column 10, the motor 11, the inclined plate 12, the shift lever 13, the inductance coil 14, the electrode 15 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (4)
1. the steel tube concrete column compactness detection tool comprises a fixing ring (1) sleeved on a concrete column, and is characterized in that a tensioning frame (2) and a U-shaped fixing frame (3) are fixed on the fixing ring (1), a tensioning assembly is arranged on the tensioning frame (2), and a height fixing assembly is arranged on the fixing frame (3); two opposite-pole and parallel permanent magnet plates (9) are arranged on the fixed frame (3), and a test hammer (7) is rotatably connected in the fixed frame (3) by using a pin shaft;
the tensioning assembly comprises a sliding rod (4) which penetrates through the tensioning frame (2) and is connected with the tensioning frame in a sliding mode, a supporting block (5) is fixed at one end, close to the concrete column, of the sliding rod (4), and a metal spring (6) is sleeved on the sliding rod (4);
the height fixing assembly comprises a soft bag column (10) embedded in the side wall of a U-shaped groove of the fixing frame (3), the soft bag column (10) is of a hollow bag-shaped structure made of rubber, two ends of the soft bag column (10) are provided with an electrode (15), and electrorheological fluid is filled in the soft bag column (10);
a linear electromagnetic coil (8) is embedded in the test sound hammer (7), two ends of the electromagnetic coil (8) are electrically connected with two electrodes (15), and the electrodes (15) are connected with a first diode in series;
A plurality of sound sensors are fixed on the fixing ring (1).
2. The tool for detecting the compactness of the concrete filled steel tubular column according to claim 1, wherein one of the permanent magnet plates (9) is fixed with a motor (11), the motor (11) is located below the fixed frame (3) and close to the concrete column, an output shaft of the motor (11) is parallel to a horizontal plane and welded with an inclined plate (12), the inclined plate (12) is eccentrically welded with a driving lever (13) parallel to the output shaft of the motor (11), and the inclined plate (12) is a circular plate and is not perpendicular to the horizontal plane.
3. The concrete filled steel tubular column compactness degree detection frock of claim 1, characterized in that, an inductance coil (14) is established ties between one of electrodes (15) and the solenoid (8).
4. The steel tube concrete column compactness degree detection tool according to claim 1, characterized in that two ends of the metal spring (6) are connected in series with the electromagnetic coil (8), the metal spring (6) is connected in parallel with the soft capsule column (10), a second diode is connected in series in a branch where the metal spring (6) is located, the first diode and the second diode are connected in parallel, and the current conduction directions of the first diode and the second diode are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821450.XA CN110568068B (en) | 2019-09-02 | 2019-09-02 | Steel core concrete column compactness detects frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821450.XA CN110568068B (en) | 2019-09-02 | 2019-09-02 | Steel core concrete column compactness detects frock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110568068A true CN110568068A (en) | 2019-12-13 |
| CN110568068B CN110568068B (en) | 2022-05-27 |
Family
ID=68777287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910821450.XA Active CN110568068B (en) | 2019-09-02 | 2019-09-02 | Steel core concrete column compactness detects frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110568068B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147479A (en) * | 2020-09-15 | 2020-12-29 | 南京祠盛资电子商务有限公司 | Energy-saving and environment-friendly light-emitting diode detection device using current transformer |
| CN112411951A (en) * | 2020-12-01 | 2021-02-26 | 浙江太学科技集团有限公司 | Real device of instructing that outer wall was glued |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5477736A (en) * | 1994-03-14 | 1995-12-26 | General Electric Company | Ultrasonic transducer with lens having electrorheological fluid therein for dynamically focusing and steering ultrasound energy |
| JPH1073573A (en) * | 1996-08-30 | 1998-03-17 | Mitsubishi Denki Bill Techno Service Kk | Method for diagnosing peeling-off of wall surface |
| CN105021700A (en) * | 2015-07-21 | 2015-11-04 | 上海建工七建集团有限公司 | Concrete filled steel tubular column compactness detection device and detection method |
| CN207036765U (en) * | 2017-07-31 | 2018-02-23 | 山东萌山钢构工程有限公司 | A kind of assembled architecture rectangular column cast density examines structure |
| CN109212030A (en) * | 2018-10-12 | 2019-01-15 | 华北水利水电大学 | A kind of accurate detection device of steel core concrete column compactness |
| CN110173005A (en) * | 2019-05-15 | 2019-08-27 | 浙江大学 | The Kong Zhongshuan measuring point low strain integrity test device and method of foundation pile |
-
2019
- 2019-09-02 CN CN201910821450.XA patent/CN110568068B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5477736A (en) * | 1994-03-14 | 1995-12-26 | General Electric Company | Ultrasonic transducer with lens having electrorheological fluid therein for dynamically focusing and steering ultrasound energy |
| JPH1073573A (en) * | 1996-08-30 | 1998-03-17 | Mitsubishi Denki Bill Techno Service Kk | Method for diagnosing peeling-off of wall surface |
| CN105021700A (en) * | 2015-07-21 | 2015-11-04 | 上海建工七建集团有限公司 | Concrete filled steel tubular column compactness detection device and detection method |
| CN207036765U (en) * | 2017-07-31 | 2018-02-23 | 山东萌山钢构工程有限公司 | A kind of assembled architecture rectangular column cast density examines structure |
| CN109212030A (en) * | 2018-10-12 | 2019-01-15 | 华北水利水电大学 | A kind of accurate detection device of steel core concrete column compactness |
| CN110173005A (en) * | 2019-05-15 | 2019-08-27 | 浙江大学 | The Kong Zhongshuan measuring point low strain integrity test device and method of foundation pile |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147479A (en) * | 2020-09-15 | 2020-12-29 | 南京祠盛资电子商务有限公司 | Energy-saving and environment-friendly light-emitting diode detection device using current transformer |
| CN112147479B (en) * | 2020-09-15 | 2021-09-07 | 朱丽云 | Energy-saving and environment-friendly light-emitting diode detection device using current transformer |
| CN112411951A (en) * | 2020-12-01 | 2021-02-26 | 浙江太学科技集团有限公司 | Real device of instructing that outer wall was glued |
| CN112411951B (en) * | 2020-12-01 | 2022-02-01 | 浙江太学科技集团有限公司 | Real device of instructing that outer wall was glued |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110568068B (en) | 2022-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110568068B (en) | Steel core concrete column compactness detects frock | |
| CN1023659C (en) | Apparatus for impact testing for electric generator stator wedge tightness | |
| EP2887048A1 (en) | Pendulum device for low-energy impact testing | |
| CN110108794B (en) | Adjustable contact force type ultrasonic guided wave damage detection system | |
| CN1982645B (en) | Device used by penetration components for hammering sampler into drilling hole soil | |
| CN112763303B (en) | Full-strain-rate dynamic and static combined loading multifunctional rock mechanical test system and method | |
| KR101905446B1 (en) | Dynamic loading test equipment for helix pile | |
| JP3875729B2 (en) | Ground anchor test system | |
| US20090251993A1 (en) | Shear wave transducer and method of using the same | |
| CN105021700B (en) | Steel core concrete column compactness detection device | |
| CN102692308A (en) | Testing device and testing method for battery impact | |
| JP2014228324A (en) | Method of diagnosing fixed state of anchor bolt to concrete | |
| CN101457534B (en) | Impulse elastic wave energized residual signal restraining device and restraining method | |
| CN107966375B (en) | Device and method for detecting impact resistance of concrete | |
| CN104748932A (en) | Automatic excitation device of railway bridge foundation structure | |
| CN107228804B (en) | A kind of jump bit for vertical mechanical shock test machine | |
| CN216717319U (en) | Landslide displacement monitoring device | |
| CN215004642U (en) | Coarse-grained soil shear wave velocity testing device and testing system excited by external vibration source | |
| CN107748385B (en) | Method for testing wave velocity of in-hole shear wave source and cross-hole method | |
| CN107132136B (en) | A method of realizing vertical impact test | |
| JP2017166230A (en) | Penetration testing device and penetration testing method | |
| CN210400974U (en) | Electric compaction instrument based on electromagnet | |
| CN220686018U (en) | Portable detection equipment for bearing capacity of river soil body | |
| CN218823699U (en) | Drop hammer impact detection device | |
| CN219280661U (en) | Heavy cone dynamic sounding instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220507 Address after: 150000 building 40, xuanxi community, Nangang District, Harbin City, Heilongjiang Province Applicant after: Heilongjiang Longfeng Highway Engineering Inspection Co.,Ltd. Address before: 518000 A12, 8th floor, building 210, Tairan Science Park, Tairan 4th Road, Tian'an community, Shatou street, Futian District, Shenzhen, Guangdong Applicant before: Li Wenfang |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |