CN112504214A - Monitoring device and monitoring method for deformation point of steel member - Google Patents
Monitoring device and monitoring method for deformation point of steel member Download PDFInfo
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- CN112504214A CN112504214A CN202011483270.4A CN202011483270A CN112504214A CN 112504214 A CN112504214 A CN 112504214A CN 202011483270 A CN202011483270 A CN 202011483270A CN 112504214 A CN112504214 A CN 112504214A
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- G—PHYSICS
- 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
- G01B21/32—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring the deformation in a solid
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Abstract
The invention provides a monitoring device and a monitoring method for a deformation point of a steel member, wherein the monitoring device for the deformation point of the steel member is matched with a total station of a measuring base station for use, and comprises the following components: the device comprises a prism lens, a universal shaft head, a clamp and a base. The universal shaft head comprises an adapter and a rotary shaft head, one end of the rotary shaft head is of a spherical structure, the other end of the rotary shaft head is of a cylindrical structure, the upper end of the adapter is fixedly connected with the prism head, and the lower end of the adapter is fixedly connected with the cylindrical structure; the inside upper end of clamp is hollow structure with spherical structure matched with, and spherical structure sets up in hollow structure, and the one end setting of base is in the inside of clamp to be connected with spherical structure contact, the other end of base is magnetic structure, adsorbs on the steel member. The universal shaft head with the spherical structure can rotate 360 degrees, so that the monitoring precision and efficiency are improved, and the structural damage and appearance damage caused by steel members are avoided due to the base with the magnetic structure.
Description
Technical Field
The invention relates to the technical field of steel member deformation measurement and positioning, in particular to a monitoring device and a monitoring method for a steel member deformation point.
Background
The steel structure engineering is developed rapidly in China due to the short construction period, the small structural section, the light dead weight and the good earthquake resistance. This makes steel construction deformation monitoring work more and more important, directly influences the safety of building itself and the safety of people's life and property.
At present, the deformation monitoring method for domestic steel structure buildings usually adopts: precision triangulation, distance or angle intersection, total station polar coordinates, GPS, and the like. In the deformation monitoring of large-span complex steel structure engineering, a measuring method of matching a total station polar coordinate measurement with a prism or a special target patch is usually selected.
When using ordinary prism to carry out deformation monitoring, because fix the difficulty at deformation monitoring point prism, need weld the concatenation of prism arrangement base in advance on the steel member again, take one's place, can cause structural damage to the steel member, destroy the steel member appearance. When the special target patch is used for measuring the precision, the measuring precision can be reduced by 50%, and the special target patch cannot be used on the circular steel component. Meanwhile, the complex steel structure engineering has various structural forms, the measurement angle is variable, and the requirement of angle transformation cannot be met by a common prism.
Disclosure of Invention
Aiming at the defects of the prior art, the invention designs a monitoring device for a deformation point of a steel member, which is used in cooperation with a total station of a measuring base station, and comprises: the device comprises a prism lens, a universal shaft head, a clamp and a base. The universal shaft head comprises an adapter and a rotary shaft head, one end of the rotary shaft head is of a spherical structure, the other end of the rotary shaft head is of a cylindrical structure, the upper end of the adapter is fixedly connected with the prism head, and the lower end of the adapter is fixedly connected with the cylindrical structure; the inside upper end of clamp is hollow structure with spherical structure matched with, and spherical structure sets up in hollow structure, and the one end setting of base is in the inside of clamp to be connected with spherical structure contact, the other end of base is magnetic structure, adsorbs on the steel member.
Preferably, the clamp comprises a clamp body, a positioning screw, a locking nut and a locking handle. The upper end of the interior of the hoop body is of a hollow structure matched with the spherical structure, and the spherical structure is arranged in the hollow structure; the one end setting of base is in the inside of clamp body, and wherein the base passes through set screw with the right side of clamp body to be fixed, and it is fixed with lock nut that locking screw is passed through to the left side, and the locking handle is connected with lock nut.
Preferably, the base comprises an adapter cylinder, a first base, a second base and a base fixing screw; the one end setting of a switching section of thick bamboo is in the inside of clamp body to be connected with spherical structure contact, wherein a switching section of thick bamboo is fixed through set screw with the right side of clamp body, and it is fixed through locking screw and lock nut in the left side, and the lower extreme and the first base of a switching section of thick bamboo are connected, and first base and second base pass through base set screw fixed connection, and the second base is magnetic structure, adsorbs on the steel member.
Preferably, the clamp body is provided with a positioning hole and a first locking hole, the adapter cylinder is provided with an ear plate, the ear plate is provided with a second locking hole matched with the first locking hole, the locking screw sequentially penetrates through the first locking hole and the second locking hole and is connected with the locking nut, the adapter cylinder is further provided with a positioning screw hole matched with the positioning hole, the positioning screw penetrates through the positioning hole and is connected with the positioning screw hole, and the top end of the clamp body is further provided with a lubricating grease filling port for filling lubricating grease.
Preferably, the locking nut is provided with a locking handle mounting hole for mounting the locking handle.
Preferably, one end of the adapter is provided with a first internal thread, the lower end of the prism head is provided with a first external thread matched with the first internal thread, and the prism lens is connected with the adapter through the first internal thread and the first external thread; the other end of adapter is equipped with the second internal thread, and cylindrical structure is last be equipped with second internal thread matched with second external screw thread, adapter and rotatory spindle nose pass through second internal thread and the external screw thread connection of second.
Preferably, the bottom of clamp body is equipped with the third internal thread, the upper end of first base be equipped with third internal thread matched with third external screw thread, the clamp body passes through third internal thread and third external screw thread connection with first base, the bottom of first base is equipped with the fixed screw of base, the position that corresponds with the fixed screw of base on the second base is equipped with second base mounting hole, base set screw passes second base mounting hole and is connected with the fixed screw of base.
Based on the same design concept, the invention provides a monitoring method of a deformation point of a steel member by adopting a monitoring device for the deformation point of the steel member, which comprises the following steps: installing a spherical structure of a rotary shaft head in the universal shaft head in a hollow structure matched with the spherical structure at the upper end inside the hoop body; one end of the adapter cylinder is arranged inside the clamp body and is in contact connection with the spherical structure, the right sides of the adapter cylinder and the clamp body are fixed through a positioning screw, the left sides of the adapter cylinder and the clamp body are fixed through a locking screw and a locking nut, and a locking handle is arranged on the locking nut; installing an adapter of a universal shaft head on a rotating shaft head, and installing a prism lens at the upper end of the adapter; installing a first base at the lower end of the adapter cylinder, installing a second base at the lower end of the first base, and fixing the second base through a base fixing screw to complete the assembly of the monitoring device for the deformation point of the steel member; mounting the assembled monitoring device for the deformation point of the steel member on the steel member, and debugging the monitoring device for the deformation point of the steel member to the condition that the reflection center of the prism head is concentric with the point position in forced centering of the measuring base station; and erecting the total station at the forced centering point, measuring and recording the initial distance and the measured back angle of the monitoring point, measuring and recording the distance and the measured back angle of the monitoring point at intervals of threshold time, and comparing the measured distance and the measured back angle with the initial recorded data to judge whether the monitoring point is deformed.
Preferably, the method for monitoring the deformation point of the steel member includes the following steps: adsorbing the monitoring device for the deformation point of the steel member on the steel member by utilizing the magnetism of the second base; the spherical structure of a rotating shaft head in the universal shaft head is adjusted to control and adjust the prism lens, and the reflection center of the prism lens is adjusted to be concentric with the point position in forced centering of the measuring base station; the locking handle is rotated to drive the locking nut to control the base to lock the universal shaft head so as to control the prism head to be immobile.
Preferably, the total station is erected at a point location in forced centering, the initial distance and the measured-back angle of the monitoring point are measured and recorded, the distance and the measured-back angle of the monitoring point are measured and recorded at intervals of threshold time, and the distance and the measured-back angle are compared with the initial recorded data to judge whether the monitoring point is deformed, and the method comprises the following steps: erecting a total station at a forced centering point, adjusting the center of a sighting axis cross wire of the total station to coincide with the reflection center of the prism lens, and then carrying out initial distance measurement and recording; aiming and measuring the total station at the left disc position as an initial direction, reading and recording a horizontal dial reading, clockwise rotating the total station to align with the prism lens, reading and recording the horizontal reading, reversing the total station to take aiming and measuring at the right disc position as the initial direction, reading and recording the horizontal dial reading, anticlockwise rotating the total station to align with the prism lens, reading and recording the horizontal reading, and obtaining an initial measured angle value according to the values recorded at the left disc position and the right disc position; repeating the steps more than once every threshold time, comparing the steps with the initial recorded data, if the distances and the measured angles measured for many times continuously change towards the same direction, deforming the steel member, otherwise, not deforming the steel member.
Compared with the closest prior art, the invention has the beneficial effects that:
1. the base provided by the monitoring device and the monitoring method for the deformation point of the steel member is of a magnetic structure, the deformation monitoring point can be arranged in place before the steel member is assembled in place and is adsorbed on the surface of the steel member, and the problems of complex process operation, difficulty in installation and structural damage and appearance damage to the steel member caused by welding of the prism arrangement base when a common prism is used are solved.
2. The universal shaft head provided by the device and the method for monitoring the deformation point of the steel member can rotate 360 degrees, and can realize multi-angle measurement by adjusting and fixing the locking screw and the locking nut, so that the monitoring precision and efficiency are improved.
3. The base of the magnetic structure provided by the device and the method for monitoring the deformation point of the steel member is of a detachable structure, so that the device and the method are quick to install and convenient to operate.
Drawings
FIG. 1 is a schematic structural view of a monitoring device for deformation points of a steel member according to the present invention.
Fig. 2 is a schematic structural diagram of a prism lens according to the present invention.
FIG. 3 is a schematic view of the construction of the cardan shaft head of the present invention.
FIG. 4 is an exploded view of the cardan shaft head of the present invention.
Fig. 5 is a schematic view of the structure of the clip of the present invention.
Fig. 6 is an exploded view of a clamp of the present invention.
Fig. 7 is a schematic structural diagram of the base of the present invention.
Fig. 8 is an exploded view of the base of the present invention.
Reference numerals:
1-prism lens, 11-first external thread, 2-universal spindle head, 21-adapter, 211-first internal thread, 212-second internal thread, 22-rotary spindle head, 221-second external thread, 3-clamp, 31-clamp body, 311-positioning hole, 312-first locking hole, 313-lubricating grease filling port, 32-positioning screw, 33-locking screw, 34-locking nut, 341-locking handle mounting hole, 35-locking handle, 4-base, 41-adapter, 411-ear plate, 412-second locking hole, 413-positioning screw hole, 414-third internal thread, 42-first base, 421-third external thread, 422-base fixing screw hole, 43-second base, 431-second base mounting hole, 44-base fixing screw.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
The invention provides a monitoring device for a deformation point of a steel member, which is used in cooperation with a total station of a measuring base station, as shown in figures 1-8, and comprises: the device comprises a prism lens 1, a universal shaft head 2, a hoop 3 and a base 4. The universal spindle head 2 comprises an adapter 21 and a rotary spindle head 22, one end of the rotary spindle head 22 is of a spherical structure, the other end of the rotary spindle head is of a cylindrical structure, the upper end of the adapter 21 is fixedly connected with the prism head 1, and the lower end of the adapter 21 is fixedly connected with the cylindrical structure. The inside upper end of clamp 3 is hollow structure with spherical structure matched with, and spherical structure sets up in hollow structure, and the one end setting of base 4 is in the inside of clamp 3 to be connected with spherical structure contact, the other end of base 4 is magnetic structure, adsorbs on the steel member.
In a preferred embodiment, the clip 3 includes a clip body 31, a set screw 32, a locking screw 33, a locking nut 34, and a locking handle 35. The upper end of the inside of the clamp body 31 is a hollow structure matched with the spherical structure, and the spherical structure is arranged in the hollow structure. One end of the base 4 is arranged inside the clamp body 31, wherein the base 4 is fixed with the right side of the clamp body 31 through a positioning screw 32, the left side is fixed through a locking screw 33 and a locking nut 34, and a locking handle 35 is connected with the locking nut 34. Preferably, the material of the band body 31 is iron.
In a preferred embodiment, the base 4 includes an adapter 41, a first base 42, a second base 43, and a base set screw 44. One end of an adapter 41 is arranged inside the clamp body 31 and is in contact connection with a spherical structure, wherein the adapter 41 is fixed to the right side of the clamp body 31 through a positioning screw 32, the left side of the adapter is fixed through a locking screw 33 and a locking nut 34, the lower end of the adapter 41 is connected with a first base 42, the first base 42 and a second base 43 are fixedly connected through a base fixing screw 44, and the second base 43 is of a magnetic structure and is adsorbed on a steel member. Preferably, the material of the adapter 41 and the first base 42 is iron, and the material of the second base 43 is ru steel magnet.
In a preferred embodiment, the clamp body 31 is provided with a positioning hole 311 and a first locking hole 312, the adapter 41 is provided with an ear plate 411, the ear plate 411 is provided with a second locking hole 412 matched with the first locking hole 312, the locking screw 33 sequentially passes through the first locking hole 312 and the second locking hole 412 and is connected with the locking nut 34, the adapter 41 is further provided with a positioning screw hole 413 matched with the positioning hole 311, the positioning screw 32 passes through the positioning hole 311 and is connected with the positioning screw hole 413, and the top end of the clamp body 31 is further provided with a grease filling port 313 for filling grease. The lock nut 34 is provided with a lock handle mounting hole 341 for mounting the lock handle 35.
In a preferred embodiment, one end of the adapter 21 is provided with a first internal thread 211, the lower end of the prism head 1 is provided with a first external thread 11 matched with the first internal thread 211, and the prism head 1 is connected with the adapter 21 through the first internal thread 211 and the first external thread 11; the other end of the adapter 21 is provided with a second internal thread 212, the cylindrical structure is provided with a second external thread 221 matched with the second internal thread 212, and the adapter 21 and the rotary shaft head 22 are connected through the second internal thread 212 and the second external thread 221.
In a preferred embodiment, the bottom end of the clamp body 31 is provided with a third internal thread 414, the upper end of the first base 42 is provided with a third external thread 421 matching with the third internal thread 414, the clamp body 31 is connected with the first base 42 through the third internal thread 414 and the third external thread 421, the bottom of the first base 42 is provided with a base fixing screw hole 422, a second base mounting hole 431 is provided at a position on the second base 43 corresponding to the base fixing screw hole 422, and the base fixing screw 44 passes through the second base mounting hole 431 and is connected with the base fixing screw hole 422.
Example 2
The invention provides a monitoring method of a steel member deformation point by adopting a monitoring device for the steel member deformation point, which comprises the following steps: the spherical structure of the rotary shaft head 22 in the universal shaft head 2 is arranged in a hollow structure matched with the spherical structure at the upper end of the inside of the hoop body 31. One end of the adapter 41 is arranged inside the clamp body 31 and is in contact connection with the spherical structure, the right side of the adapter 41 and the clamp body 31 is fixed through the positioning screw 32, the left side of the adapter 41 and the clamp body 31 is fixed through the locking screw 33 and the locking nut 34, and the locking handle 35 is installed on the locking nut 34. The adapter 21 of the universal spindle head 2 is installed on the rotary spindle head 22, and the prism lens 1 is installed at the upper end of the adapter 21. And (3) installing the first base 42 at the lower end of the adapter cylinder 41, installing the second base 43 at the lower end of the first base 42, and fixing by the base fixing screw 44 to complete the assembly of the monitoring device for the deformation point of the steel member. And installing the assembled monitoring device for the deformation point of the steel member on the steel member, and debugging the monitoring device for the deformation point of the steel member to the reflection center of the prism lens 1 to be concentric with the point position in forced centering of the measuring base station. And erecting the total station at the forced centering point, measuring and recording the initial distance and the measured back angle of the monitoring point, measuring and recording the distance and the measured back angle of the monitoring point at intervals of threshold time, and comparing the measured distance and the measured back angle with the initial recorded data to judge whether the monitoring point is deformed.
In a preferred embodiment, the assembled monitoring device for the deformation point of the steel member is installed on the steel member, and the monitoring device for the deformation point of the steel member is adjusted to make the reflection center of the prism lens 1 concentric with the point position in the forced centering of the measuring base station, comprising the following steps: the monitoring device for the deformation point of the steel member is adsorbed on the steel member by utilizing the magnetism of the second base 43. The spherical structure of the rotary shaft head 22 in the universal shaft head 2 is adjusted to control the adjustment prism lens 1, so that the reflection center of the prism lens 1 is adjusted to be concentric with the point position of forced centering of the measuring base station. The locking handle 35 is rotated to drive the locking nut 34 to control the base 4 to lock the universal spindle head 2, so as to control the prism lens 1 to be immobile.
In a preferred embodiment, the total station is erected at a point position in forced centering, the initial distance and the measured back angle of the monitoring point are measured and recorded, the distance and the measured back angle of the monitoring point are measured and recorded at intervals of threshold time, and the distance and the measured back angle are compared with the initial recorded data to judge whether the monitoring point is deformed, and the method comprises the following steps: and erecting the total station at the forced centering point, adjusting the coincidence of the center of the cross wire of the sighting axis of the total station and the reflection center of the prism lens 1, then carrying out initial distance measurement, and recording. Taking the aiming measurement of the left disk position of the total station as an initial direction, reading and recording a horizontal dial reading, clockwise rotating the total station to align with the prism lens 1, reading and recording the horizontal reading, reversing the total station to take the aiming measurement of the right disk position as the initial direction, reading and recording the horizontal dial reading, anticlockwise rotating the total station to align with the prism lens 1, reading and recording the horizontal reading, and obtaining an initial return angle value according to the values recorded on the left disk and the right disk. Repeating the steps more than once every threshold time, comparing the steps with the initial recorded data, if the distances and the measured angles measured for many times continuously change towards the same direction, deforming the steel member, otherwise, determining that the steel member is not deformed as a measurement error.
Example 3
The specific process of the method for monitoring the deformation point of a steel member according to a preferred embodiment of the present invention is described as follows:
first, the spherical structure of the turning spindle head 22 of the gimbal head 2 is installed in the hollow structure of the inside of the yoke body 31, which is fitted with the spherical structure. One end of the adapter 41 is arranged inside the clamp body 31 and is in contact connection with the spherical structure, the right side of the adapter 41 and the clamp body 31 is fixed through the positioning screw 32, the left side of the adapter 41 and the clamp body 31 is fixed through the locking screw 33 and the locking nut 34, and the locking handle 35 is installed on the locking nut 34. The adapter 21 of the universal spindle head 2 is installed on the rotary spindle head 22, and the prism lens 1 is installed at the upper end of the adapter 21. And (3) installing the first base 42 at the lower end of the adapter cylinder 41, installing the second base 43 at the lower end of the first base 42, and fixing by the base fixing screw 44 to complete the assembly of the monitoring device for the deformation point of the steel member. The monitoring device for the deformation point of the steel member is adsorbed on the steel member by utilizing the magnetism of the second base 43. The spherical structure of the rotary shaft head 22 in the universal shaft head 2 is adjusted to control the adjustment prism lens 1, so that the reflection center of the prism lens 1 is adjusted to be concentric with the point position of forced centering of the measuring base station. The locking handle 35 is rotated to drive the locking nut 34 to control the base 4 to lock the universal spindle head 2, so as to control the prism lens 1 to be immobile. And erecting the total station at the forced centering point, adjusting the coincidence of the center of the cross wire of the sighting axis of the total station and the reflection center of the prism lens 1, then carrying out initial distance measurement, and recording. Taking the aiming measurement of the left disk position of the total station as an initial direction, reading and recording a horizontal dial reading, clockwise rotating the total station to align with the prism lens 1, reading and recording the horizontal reading, reversing the total station to take the aiming measurement of the right disk position as the initial direction, reading and recording the horizontal dial reading, anticlockwise rotating the total station to align with the prism lens 1, reading and recording the horizontal reading, and obtaining an initial return angle value according to the values recorded on the left disk and the right disk. Repeating the steps more than once every 3 days, comparing the steps with the initial recorded data, changing the observation interval of the observation point to 1 day when the distance measured by repeating the 3 times is continuously increased or decreased and the measured angle is continuously increased or decreased, and judging that the steel member is deformed if the distance measured by the next five days and the measured angle are the same as the change trend of the previous days.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention is included in the scope of the claims of the present invention filed as filed.
Claims (10)
1. A monitoring devices for steel member deformation point, a monitoring devices for steel member deformation point uses with the total powerstation cooperation of measuring the basic station, its characterized in that, a monitoring devices for steel member deformation point includes: the device comprises a prism lens (1), a universal shaft head (2), a hoop (3) and a base (4);
the universal shaft head (2) comprises an adapter (21) and a rotary shaft head (22), one end of the rotary shaft head (22) is of a spherical structure, the other end of the rotary shaft head is of a cylindrical structure, the upper end of the adapter (21) is fixedly connected with the prism lens (1), and the lower end of the adapter (21) is fixedly connected with the cylindrical structure; the inside upper end of clamp (3) be with spherical structure matched with hollow structure, spherical structure sets up in the hollow structure, the one end setting of base (4) is in the inside of clamp (3), and with the spherical structure contact is connected, the other end of base (4) is magnetic structure, adsorbs on the steel member.
2. A monitoring device for steel member deformation points according to claim 1, characterized in that the clamp (3) comprises a clamp body (31), a set screw (32), a locking screw (33), a locking nut (34) and a locking handle (35); the upper end of the interior of the hoop body (31) is of a hollow structure matched with the spherical structure, and the spherical structure is arranged in the hollow structure; the one end setting of base (4) is in the inside of clamp body (31), wherein base (4) with the right side of clamp body (31) is passed through set screw (32) are fixed, the left side pass through locking screw (33) with lock nut (34) are fixed, lock handle (35) with lock nut (34) are connected.
3. A monitoring device for steel member deformation points according to claim 2, characterized in that said base (4) comprises an adapter cylinder (41), a first base (42), a second base (43) and a base fixing screw (44); the one end setting of adapter tube (41) is in the inside of clamp body (31), and with spherical structure contact is connected, wherein adapter tube (41) with the right side of clamp body (31) is passed through set screw (32) are fixed, the left side pass through locking screw (33) with lock nut (34) are fixed, the lower extreme of adapter tube (41) with first base (42) are connected, first base (42) with second base (43) pass through base set screw (44) fixed connection, second base (43) are magnetic structure, adsorb on the steel member.
4. A monitoring device for a deformation point of a steel member as claimed in claim 3, the clamp body (31) is provided with a positioning hole (311) and a first locking hole (312), the adapter cylinder (41) is provided with an ear plate (411), a second locking hole (412) matched with the first locking hole (312) is arranged on the ear plate (411), the locking screw (33) passes through the first locking hole (312) and the second locking hole (412) in sequence and is connected with the locking nut (34), the adapter cylinder (41) is also provided with a positioning screw hole (413) matched with the positioning hole (311), the positioning screw (32) passes through the positioning hole (311) and is connected with the positioning screw hole (413), the top end of the clamp body (31) is also provided with a lubricating grease filling port (313) for filling lubricating grease.
5. A monitoring device for a deformation point of a steel member as claimed in claim 3, wherein the lock nut (34) is provided with a lock handle installation hole (341) for installing the lock handle (35).
6. A monitoring device for a deformation point of a steel member as claimed in claim 1, wherein one end of the adapter (21) is provided with a first internal thread (211), a lower end of the prism lens (1) is provided with a first external thread (11) to be fitted with the first internal thread (211), and the prism lens (1) and the adapter (21) are connected through the first internal thread (211) and the first external thread (11); the other end of adapter (21) is equipped with second internal thread (212), be equipped with on the cylindrical structure with second internal thread (212) matched with second external thread (221), adapter (21) with rotatory spindle nose (22) pass through second internal thread (212) with second external thread (221) are connected.
7. A monitoring device for a deformation point of a steel member as claimed in claim 3, wherein a bottom end of the yoke body (31) is provided with a third internal thread (414), an upper end of the first base (42) is provided with a third external thread (421) engaged with the third internal thread (414), the yoke body (31) and the first base (42) are connected through the third internal thread (414) and the third external thread (421), a bottom of the first base (42) is provided with a base fixing screw hole (422), a second base mounting hole (431) is provided at a position of the second base (43) corresponding to the base fixing screw hole (422), and the base fixing screw (44) passes through the second base mounting hole (431) and is connected with the base fixing screw hole (422).
8. A method of monitoring a point of deformation of a steel member using an apparatus for monitoring a point of deformation of a steel member as claimed in any one of claims 1 to 7, comprising the steps of:
installing a spherical structure of a rotary shaft head (22) in the universal shaft head (2) in a hollow structure, wherein the upper end of the inside of a clamp body (31) of the clamp (3) is matched with the spherical structure;
arranging one end of an adapter cylinder (41) in the clamp body (31), connecting the adapter cylinder with the spherical structure in a contact manner, fixing the adapter cylinder (41) and the right side of the clamp body (31) through a positioning screw (32), fixing the adapter cylinder (41) and the left side of the clamp body (31) through a locking screw (33) and a locking nut (34), and installing a locking handle (35) on the locking nut (34);
installing an adapter (21) of the universal shaft head (2) on the rotary shaft head (22), and installing the prism lens (1) at the upper end of the adapter (21);
installing a first base (42) at the lower end of the adapter cylinder (41), installing a second base (43) at the lower end of the first base (42) and fixing the first base and the second base through base fixing screws (44), and completing the assembly of the monitoring device for the deformation point of the steel member;
mounting the assembled monitoring device for the deformation point of the steel member on the steel member, and debugging the monitoring device for the deformation point of the steel member to the condition that the reflection center of the prism lens (1) is concentric with the point position in forced centering of the measuring base station;
and erecting the total station at the forced centering point, measuring and recording the initial distance and the measured back angle of the monitoring point, measuring and recording the distance and the measured back angle of the monitoring point at intervals of threshold time, and comparing the measured distance and the measured back angle with the initial recorded data to judge whether the monitoring point is deformed.
9. A method of monitoring a steel member deformation point according to claim 8, wherein the step of mounting the assembled monitoring device for a steel member deformation point on a steel member and adjusting the monitoring device for a steel member deformation point such that the reflection center of the prism lens (1) is concentric with a point in the forced centering of the measuring base station comprises the steps of:
adsorbing the monitoring device for the deformation point of the steel member on the steel member by utilizing the magnetism of the second base (43);
the spherical structure of a rotary shaft head (22) in the universal shaft head (2) is adjusted to control and adjust the prism lens (1), and the reflection center of the prism lens (1) is adjusted to be concentric with the point position in forced centering of the measuring base station;
the locking handle (35) is rotated to drive the locking nut (34) to control the base (4) to lock the universal shaft head (2) so as to control the prism lens (1) to be immobile.
10. The method for monitoring the deformation point of the steel member as claimed in claim 8, wherein the step of erecting the total station at the point position in the forced centering, measuring and recording the initial distance and the return angle of the monitoring point, measuring and recording the distance and the return angle of the monitoring point at intervals of a threshold value, and comparing the measured distance and the return angle with the initial recorded data to judge whether the monitoring point is deformed comprises the following steps:
erecting a total station at a forced centering point, adjusting the center of a sighting axis cross wire of the total station to coincide with the reflection center of the prism lens (1), and then carrying out initial distance measurement and recording;
aiming and measuring the total station at the left disc position as an initial direction, reading a horizontal dial reading, recording, clockwise rotating the total station to align with the prism lens (1), reading the horizontal reading, recording, reversing the total station to aim and measure at the right disc position as the initial direction, reading the horizontal dial reading, recording, anticlockwise rotating the total station to align with the prism lens (1), reading the horizontal reading, recording, and obtaining an initial return angle value according to values recorded at the left disc position and the right disc position;
repeating the steps more than once every threshold time, comparing the steps with the initial recorded data, if the distances and the measured angles measured for many times continuously change towards the same direction, deforming the steel member, otherwise, not deforming the steel member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483270.4A CN112504214B (en) | 2020-12-16 | 2020-12-16 | Monitoring device and monitoring method for deformation point of steel member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483270.4A CN112504214B (en) | 2020-12-16 | 2020-12-16 | Monitoring device and monitoring method for deformation point of steel member |
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| WO2007088698A1 (en) * | 2006-01-31 | 2007-08-09 | Ntn Corporation | Bearing device for drive wheel |
| CN102607506A (en) * | 2012-03-01 | 2012-07-25 | 中国人民解放军空军工程设计研究局 | Free stationing transformation monitoring method of high-fill airport side slope unit set total station |
| CN106767666A (en) * | 2016-12-31 | 2017-05-31 | 铁道第三勘察设计院集团有限公司 | The automation deformation monitoring device and monitoring method of total powerstation |
| CN207777839U (en) * | 2018-01-15 | 2018-08-28 | 叶燕晖 | A kind of tracheae universal joint |
| CN209802311U (en) * | 2019-06-28 | 2019-12-17 | 北京建工集团有限责任公司 | High-precision deformation monitoring device convenient to install on steel structure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007088698A1 (en) * | 2006-01-31 | 2007-08-09 | Ntn Corporation | Bearing device for drive wheel |
| CN102607506A (en) * | 2012-03-01 | 2012-07-25 | 中国人民解放军空军工程设计研究局 | Free stationing transformation monitoring method of high-fill airport side slope unit set total station |
| CN106767666A (en) * | 2016-12-31 | 2017-05-31 | 铁道第三勘察设计院集团有限公司 | The automation deformation monitoring device and monitoring method of total powerstation |
| CN207777839U (en) * | 2018-01-15 | 2018-08-28 | 叶燕晖 | A kind of tracheae universal joint |
| CN209802311U (en) * | 2019-06-28 | 2019-12-17 | 北京建工集团有限责任公司 | High-precision deformation monitoring device convenient to install on steel structure |
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