CN106989716B - Three-dimensional relative displacement measuring device and method for deformation joint of structure - Google Patents
Three-dimensional relative displacement measuring device and method for deformation joint of structure Download PDFInfo
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- CN106989716B CN106989716B CN201710358854.0A CN201710358854A CN106989716B CN 106989716 B CN106989716 B CN 106989716B CN 201710358854 A CN201710358854 A CN 201710358854A CN 106989716 B CN106989716 B CN 106989716B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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Abstract
The invention discloses a three-dimensional relative displacement measuring device and a method for a structure deformation joint, and the three-dimensional relative displacement measuring device comprises a displacement measuring block and a top block, wherein the displacement measuring block and the top block are respectively arranged at two sides of the structure deformation joint; the other end of the first displacement measuring rod is provided with a first sliding block, the other end of the second displacement measuring rod is provided with a second sliding block, and the other end of the third displacement measuring rod is provided with a third sliding block. The invention enables the displacement measuring rod to be free in one dimension, the displacement measuring rod only measures the deformation of the other dimension vertical to the sliding groove, and the invention has the advantages of high measuring precision, reliable result, simple structure and convenient installation.
Description
Technical Field
The invention belongs to the technical field of building measurement, and particularly relates to a device and a method for measuring three-dimensional relative displacement of a structure deformation joint.
Background
Settlement joints, construction joints and the like are structurally arranged in the design and construction process of the reinforced concrete structure. The deformation characteristics of the gaps are important characteristics for reflecting the stress state of the structure and also important indexes for evaluating the health state of the structure. The structure gaps are accurately monitored, and the method has very important significance on design construction and later maintenance of the structure.
The deformation joint is generally measured by adopting a connecting rod type displacement sensor, the traditional connecting rod type displacement sensor can only measure the relative displacement of the deformation joint in a single direction, and the deformation of the deformation joint is generally multidimensional, so that the existing measuring device and method cannot meet the high-requirement monitoring requirement, the reliability of the measured result is low, and the actual state of the deformation joint cannot be effectively reflected.
Disclosure of Invention
The invention aims to solve the technical problems of single deformation joint monitoring direction and low monitoring precision, and provides a three-dimensional relative displacement measuring device and method for a structure deformation joint.
In order to solve the problems, the invention is realized according to the following technical scheme:
the invention relates to a three-dimensional relative displacement measuring device for a structure deformation joint, which comprises a displacement measuring block and a top block, wherein the displacement measuring block and the top block are respectively arranged at two sides of the structure deformation joint; the other end of the first displacement measuring rod is provided with a first sliding block matched with the first sliding groove, the other end of the second displacement measuring rod is provided with a second sliding block matched with the second sliding groove, and the other end of the third displacement measuring rod is provided with a third sliding block matched with the third sliding groove.
Furthermore, planes of the first sliding groove, the second sliding groove and the third sliding groove are vertical to each other;
the first sensor measures the displacement of the first displacement measuring rod along the x-axis direction, the second displacement sensor measures the displacement of the second displacement measuring rod along the y-axis direction, the third sensor measures the displacement of the third displacement measuring rod along the z-axis direction, and the x-axis, the y-axis and the z-axis are coordinate axes on a three-dimensional space coordinate.
Further, the top block comprises a first top plate and a second top plate which are vertically arranged, and the first top plate and the second top plate form an L shape; the first sliding groove is arranged on the first top plate, the second sliding groove is arranged on the second top plate, and the third sliding groove is arranged on the side faces of the first top plate and the second top plate.
Further, in order to facilitate installation, a protective shell is arranged outside the displacement measurement block, and the first sensor, the second sensor and the third sensor are arranged in the protective shell.
Furthermore, in order to simplify the structure, facilitate the installation and improve the measurement precision, the first sliding block is a first H-groove pulley, and the first H-groove pulley is matched with the first sliding groove;
the second sliding block is a second H-groove pulley, the second H-groove pulley is matched with a second sliding groove, the second displacement measuring rod is L-shaped, a y-axis guide rod is sleeved outside one end, close to the second sensor, of the second displacement measuring rod, one end of the y-axis guide rod is fixed on the protective shell, a y-axis guide wheel is arranged at one end, close to the ejector block, of the y-axis guide rod, and the guide wheel is arranged at the corner position of the second displacement measuring rod;
the third slider is a third H groove pulley, the third H groove pulley cooperates with the third spout, the third displacement measuring rod is the U form, the one end overcoat that the third displacement measuring rod is close to the sensor is equipped with the z axle guide bar, the one end of z axle guide bar is fixed on the protective housing, the one end that the z axle guide bar is close to the kicking block is provided with the z axle guide wheel, the z axle guide wheel sets up the corner position of third displacement measuring rod. Furthermore, the protective shell is provided with more than two first bolt holes; and more than two second bolt holes are formed in the top block.
A three-dimensional relative displacement measuring method for a deformation joint of a structure comprises the following steps:
the method comprises the following steps that S1, a displacement measuring block is arranged on one side of a deformation joint, a top block is arranged on the other side of the deformation joint, a first sensor, a second sensor and a third sensor are arranged on the displacement measuring block, a first sliding groove, a second sliding groove and a third sliding groove are formed in the top block, a first displacement measuring rod is connected to the first sensor, a second displacement measuring rod is connected to the second sensor, and a third displacement measuring rod is arranged on the third sensor; the other end of the first displacement measuring rod is provided with a first sliding block matched with the first sliding groove, the other end of the second displacement measuring rod is provided with a second sliding block matched with the second sliding groove, and the other end of the third displacement measuring rod is provided with a third sliding block matched with the third sliding groove
S2, assuming that one side of the displacement measuring block is fixed, the first sensor records the telescopic length of the first displacement measuring rod along the x-axis direction, the second sensor records the telescopic length of the second displacement measuring rod along the y-axis direction, and the third sensor records the telescopic length of the third displacement measuring rod along the z-axis direction.
Further, in the S1, planes where the first sliding groove, the second sliding groove and the third sliding groove are located are perpendicular to each other;
the first sensor measures the displacement of the first displacement measuring rod along the direction of an x axis, the second displacement sensor measures the displacement of the second displacement measuring rod along the direction of a y axis, the third sensor measures the displacement of the third displacement measuring rod along the direction of a z axis, and the x axis, the y axis and the z axis are coordinate axes on a three-dimensional space coordinate;
the top block comprises a first top plate and a second top plate which are vertically arranged, and the first top plate and the second top plate form an L shape; the first sliding groove is arranged on the first top plate, the second sliding groove is arranged on the second top plate, and the third sliding groove is arranged on the side faces of the first top plate and the second top plate.
Further, in S1, the first slider is a first H-groove pulley, and the first H-groove pulley is matched with the first sliding groove;
the second sliding block is a second H-groove pulley, the second H-groove pulley is matched with a second sliding groove, the second displacement measuring rod is L-shaped, a y-axis guide rod is sleeved outside one end, close to the second sensor, of the second displacement measuring rod, a y-axis guide wheel is arranged at one end, close to the ejector block, of the y-axis guide rod, and the guide wheel is arranged at the corner position of the second displacement measuring rod;
the third slider is a third H-groove pulley, the third H-groove pulley is matched with a third sliding groove, the third displacement measuring rod is U-shaped, a z-axis guide rod is sleeved outside one end, close to the sensor, of the third displacement measuring rod, a z-axis guide wheel is arranged at one end, close to the ejector block, of the z-axis guide rod, and the z-axis guide wheel is arranged at the corner position of the third displacement measuring rod.
Further, a protective shell is arranged outside the displacement measuring block in the S1, and the first sensor, the second sensor and the third sensor are all arranged in the protective shell; one ends of the y-axis guide rod and the z-axis guide rod are fixed on a protective shell, and more than two first bolt holes are formed in the protective shell; the protective shell and the jacking block are respectively fixed on structures on two sides of the deformation joint through bolts.
Compared with the prior art, the invention has the beneficial effects that:
the invention has the advantages that the two sensors are arranged, the displacement measuring rod is arranged on the sensors, one end of the displacement measuring rod is arranged on the sliding chute, so that the displacement measuring rod is free in one dimension, the displacement measuring rod only measures the deformation of the other dimension vertical to the sliding chute, the measuring precision is high, the result is reliable, the structure is simple, the installation is convenient, the two displacement sensors are arranged side by side, the space is saved, and the inconvenience brought to long-term monitoring due to the overlarge volume of the sensors is avoided.
Drawings
Embodiments of the invention are described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural diagram of a three-dimensional relative displacement measuring device for a deformation joint of a structure;
FIG. 2 is a schematic structural diagram of a displacement measuring block of the three-dimensional relative displacement measuring device for the deformation joint of the structure;
FIG. 3 is a schematic structural diagram of a top block of the deformation joint three-dimensional relative displacement measuring device of the structure;
FIG. 4 is a schematic structural diagram of a second displacement measuring rod of the three-dimensional relative displacement measuring device for the deformation joint of the structure;
FIG. 5 is a diagram showing an embodiment of the three-dimensional relative displacement measuring device for a deformation joint of a structure according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 to 5, the three-dimensional relative displacement measuring device for the structure deformation joint comprises a displacement measuring block 1 and a top block 2, wherein the displacement measuring block 1 and the top block 2 are respectively arranged at two sides of the structure deformation joint 13, and the displacement measuring block 1 is provided with a first sensor 3, a second sensor 31 and a third sensor 32.
The top block 2 is provided with a first sliding groove 9, a second sliding groove 91 and a third sliding groove 92, the first sensor 3 is connected with a first displacement measuring rod 5, the second sensor 31 is connected with a second displacement measuring rod 151, and the third sensor 32 is provided with a third displacement measuring rod 15; a first sliding block matched with the first sliding groove 9 is arranged at the other end of the first displacement measuring rod 5, a second sliding block matched with the second sliding groove 91 is arranged at the other end of the second displacement measuring rod 151, and a third sliding block matched with the third sliding groove 92 is arranged at the other end of the third displacement measuring rod 15. In this embodiment, the first sliding block is a first H-groove pulley 12, and the first H-groove pulley 12 is matched with the first sliding chute 9; the second slider is second H groove pulley 121, second H groove pulley 122 and the cooperation of second spout 91, second displacement measuring rod 151 is the L form, second displacement measuring rod 151 is close to the one end overcoat of second sensor 31 and is equipped with y axle guide bar 7, y axle guide bar 7 is provided with y axle guide wheel 8 near the one end of kicking block 2, guide wheel 8 sets up the corner position of second displacement measuring rod 151 protects second displacement measuring rod 151, avoids it to rub with the terminal surface of y axle guide bar 7 and fracture when removing.
The third slider is a third H-groove pulley 122, the third H-groove pulley 122 is matched with the third sliding groove 92, the third displacement measuring rod 15 is U-shaped, a z-axis guide rod 14 is sleeved outside one end, close to the third sensor 32, of the third displacement measuring rod 15, a z-axis guide wheel 81 is arranged at one end, close to the top block 2, of the z-axis guide rod 14, the z-axis guide wheel 81 is arranged at a corner of the third displacement measuring rod 15, the third displacement measuring rod 15 is protected, and the third displacement measuring rod 15 is prevented from being broken due to friction with the end face of the z-axis guide rod 14 when moving.
The top block 2 comprises a first top plate and a second top plate which are vertically arranged, and the first top plate and the second top plate form an L shape; the first sliding groove 9 is arranged on the first top plate, the second sliding groove 91 is arranged on the second top plate, the third sliding groove 92 is arranged on the side surface of the second top plate, and the first sliding groove 9, the second sliding groove 91 and the third sliding groove 92 are all cross grooves; the planes of the first sliding chute 9, the second sliding chute 91 and the third sliding chute 92 are perpendicular to each other. Because the first sliding groove 9, the second sliding groove 91 and the third sliding groove 93 respectively give a degree of freedom of one dimension to the corresponding displacement measuring rod on one dimension of the three-dimensional space coordinate, the three displacement measuring rods respectively measure the deformation of one dimension, the first sensor measures the displacement of the first displacement measuring rod along the x-axis direction, the second displacement sensor measures the displacement of the second displacement measuring rod along the y-axis direction, the third sensor measures the displacement of the third displacement measuring rod along the z-axis direction, and the x-axis, the y-axis and the z-axis are coordinate axes on the three-dimensional space coordinate. Therefore, the measuring precision is ensured, and the problems of large measuring error and non-visual measuring result caused by simultaneously measuring a plurality of dimensions are avoided.
A protective shell 4 is arranged outside the displacement measuring block 1, and the first sensor 3, the second sensor 31 and the third sensor 32 are arranged in the protective shell 4. The protective shell 4 is provided with more than two first bolt holes 10; the top block 2 is provided with more than two second bolt holes 11. The displacement measuring block 1 and the top block 2 are fixed on two sides of the deformation joint 13 through a first bolt hole 10 and a second bolt hole 11 of the bolt through mark respectively.
A three-dimensional relative displacement measuring method for a deformation joint of a structure comprises the following steps:
s1, fixing a displacement measuring block 1 on one side of a deformation joint through a bolt, and fixing a top block 2 on the other side of the deformation joint through a bolt;
s2, arranging a first H-shaped groove pulley 12 at the other end of the first displacement measuring rod 5 in the first sliding groove 9; the second displacement measuring rod 151 passes through the y-axis guide rod 7 to be connected with the second sensor 31, and the second H-groove pulley 121 at the other end is arranged in the second sliding groove 91; the third displacement measuring rod is connected to the third displacement sensor 32 through the z-axis guide rod 14, and the third H-groove pulley 122 at the other end is disposed in the third slide groove 92.
S2, assuming that one side of the displacement measuring block 1 is fixed, the first sensor 3 records the telescopic length of the first displacement measuring rod 5 along the x-axis direction of the first displacement measuring rod 5, the second sensor 31 records the telescopic length of the y-axis of the second displacement measuring rod 151, namely the vertical displacement length of the structure deformation joint 13, and the third sensor 32 records the telescopic length of the third displacement measuring rod 15 along the z-axis direction.
According to the invention, the three sensors are arranged in the protective shell, the displacement measuring rods are respectively arranged on the sensors, the top block is arranged at the other end of the displacement measuring rod, the sliding groove is arranged on the top block, so that the displacement measuring rods are free in one dimension, and then the deformation of the displacement measuring rods in one dimension is only measured, so that the measurement precision is effectively improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention will still fall within the scope of the technical solution of the present invention.
Claims (5)
1. A three-dimensional relative displacement measuring device of structure movement joint which characterized in that: the displacement measuring device comprises a displacement measuring block and a top block, wherein the displacement measuring block and the top block are respectively arranged on two sides of a deformation joint of a structure, a first sensor, a second sensor and a third sensor are arranged on the displacement measuring block, a first sliding groove, a second sliding groove and a third sliding groove are arranged on the top block, a first displacement measuring rod is connected onto the first sensor, a second displacement measuring rod is connected onto the second sensor, and a third displacement measuring rod is arranged on the third sensor; a first sliding block matched with the first sliding groove is arranged at the other end of the first displacement measuring rod, a second sliding block matched with the second sliding groove is arranged at the other end of the second displacement measuring rod, and a third sliding block matched with the third sliding groove is arranged at the other end of the third displacement measuring rod;
planes where the first sliding groove, the second sliding groove and the third sliding groove are located are mutually vertical;
the first sensor measures the displacement of the first displacement measuring rod along the direction of an x axis, the second displacement sensor measures the displacement of the second displacement measuring rod along the direction of a y axis, the third sensor measures the displacement of the third displacement measuring rod along the direction of a z axis, and the x axis, the y axis and the z axis are coordinate axes on a three-dimensional space coordinate;
the top block comprises a first top plate and a second top plate which are vertically arranged, and the first top plate and the second top plate form an L shape; the first sliding groove is arranged on the first top plate, the second sliding groove is arranged on the second top plate, and the third sliding groove is arranged on the side surfaces of the first top plate and the second top plate;
a protective shell is arranged outside the displacement measuring block, and the first sensor, the second sensor and the third sensor are arranged in the protective shell;
the first sliding block is a first H-shaped groove pulley, and the first H-shaped groove pulley is matched with the first sliding groove;
the second sliding block is a second H-groove pulley, the second H-groove pulley is matched with a second sliding groove, the second displacement measuring rod is L-shaped, a y-axis guide rod is sleeved outside one end, close to the second sensor, of the second displacement measuring rod, one end of the y-axis guide rod is fixed on the protective shell, a y-axis guide wheel is arranged at one end, close to the ejector block, of the y-axis guide rod, and the guide wheel is arranged at the corner position of the second displacement measuring rod;
the third slider is third H groove pulley, third H groove pulley and the cooperation of third spout, the third displacement measuring bar is the U form, the one end overcoat that the third displacement measuring bar is close to the sensor is equipped with the z axle guide bar, the one end of z axle guide bar is fixed on the protective housing, the one end that the z axle guide bar is close to the kicking block is provided with the z axle leading wheel, the z axle leading wheel sets up the corner position of third displacement measuring bar.
2. The three-dimensional relative displacement measuring device for the structure deformation joint as claimed in claim 1, wherein the protective shell is provided with more than two first bolt holes; and more than two second bolt holes are formed in the top block.
3. A three-dimensional relative displacement measuring method for a structure deformation joint is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps that S1, a displacement measuring block is arranged on one side of a deformation joint, a top block is arranged on the other side of the deformation joint, a first sensor, a second sensor and a third sensor are arranged on the displacement measuring block, a first sliding groove, a second sliding groove and a third sliding groove are formed in the top block, a first displacement measuring rod is connected to the first sensor, a second displacement measuring rod is connected to the second sensor, and a third displacement measuring rod is arranged on the third sensor; a first sliding block matched with the first sliding groove is arranged at the other end of the first displacement measuring rod, a second sliding block matched with the second sliding groove is arranged at the other end of the second displacement measuring rod, and a third sliding block matched with the third sliding groove is arranged at the other end of the third displacement measuring rod
S2, assuming that one side of the displacement measuring block is fixed, the first sensor records the telescopic length of the first displacement measuring rod along the x-axis direction, the second sensor records the telescopic length of the second displacement measuring rod along the y-axis direction, and the third sensor records the telescopic length of the third displacement measuring rod along the z-axis direction;
in the step S1, the first sliding block is a first H-groove pulley, and the first H-groove pulley is matched with the first sliding groove;
the second sliding block is a second H-groove pulley, the second H-groove pulley is matched with a second sliding groove, the second displacement measuring rod is L-shaped, a y-axis guide rod is sleeved outside one end, close to the second sensor, of the second displacement measuring rod, a y-axis guide wheel is arranged at one end, close to the ejector block, of the y-axis guide rod, and the guide wheel is arranged at the corner position of the second displacement measuring rod;
the third slider is a third H-groove pulley, the third H-groove pulley is matched with a third sliding groove, the third displacement measuring rod is U-shaped, a z-axis guide rod is sleeved outside one end, close to the sensor, of the third displacement measuring rod, a z-axis guide wheel is arranged at one end, close to the ejector block, of the z-axis guide rod, and the z-axis guide wheel is arranged at the corner position of the third displacement measuring rod.
4. The three-dimensional relative displacement measuring method for the structure deformation joint as recited in claim 3, characterized in that: in the S1, planes where the first sliding groove, the second sliding groove and the third sliding groove are located are mutually vertical;
the first sensor measures the displacement of the first displacement measuring rod along the direction of an x axis, the second displacement sensor measures the displacement of the second displacement measuring rod along the direction of a y axis, the third sensor measures the displacement of the third displacement measuring rod along the direction of a z axis, and the x axis, the y axis and the z axis are coordinate axes on a three-dimensional space coordinate;
the top block comprises a first top plate and a second top plate which are vertically arranged, and the first top plate and the second top plate form an L shape; the first sliding groove is formed in the first top plate, the second sliding groove is formed in the second top plate, and the third sliding groove is formed in the side face of the first top plate and the side face of the second top plate.
5. A three-dimensional relative displacement measuring method for a deformation joint of a structure according to claim 3 or 4, characterized in that: a protective shell is arranged outside the displacement measuring block in the S1, and the first sensor, the second sensor and the third sensor are all arranged in the protective shell; one ends of the y-axis guide rod and the z-axis guide rod are fixed on a protective shell, and more than two first bolt holes are formed in the protective shell; the protective shell and the jacking block are respectively fixed on structures on two sides of the deformation joint through bolts.
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| CN108007431B (en) * | 2017-12-23 | 2020-07-28 | 苏交科集团股份有限公司 | Method for obtaining horizontal deformation and differential settlement of joint between rectangular tunnel sections |
| CN110749296A (en) * | 2019-10-25 | 2020-02-04 | 杭州同圣土工材料有限公司 | Crack three-direction relative displacement measuring device with sensor and measuring method thereof |
| CN110836652B (en) * | 2019-11-18 | 2021-04-30 | 上海交大海科检测技术有限公司 | Immersed tube tunnel construction displacement monitoring device and monitoring method thereof |
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| CN101639353B (en) * | 2009-08-18 | 2011-08-24 | 长安大学 | Gauge for three directional deformation of ground fissure |
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Effective date of registration: 20171109 Address after: 510440 No. 1, No. 833, Baiyun Avenue, Baiyun District, Guangdong, Guangzhou, three or four Applicant after: GUANGZHOU CONSTRUCTION QUALITY AND SAFETY TESTING CENTER Co.,Ltd. Applicant after: GUANGZHOU INSTITUTE OF BUILDING SCIENCE Co.,Ltd. Address before: 510440 Guangzhou Baiyun Road, Guangdong, North building, building, research and development, 833 Applicant before: GUANGZHOU INSTITUTE OF BUILDING SCIENCE Co.,Ltd. Applicant before: GUANGZHOU CONSTRUCTION QUALITY AND SAFETY TESTING CENTER Co.,Ltd. |
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