CN110196040B - Building inclination monitoring device and monitoring method thereof - Google Patents
Building inclination monitoring device and monitoring method thereof Download PDFInfo
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- CN110196040B CN110196040B CN201910519812.XA CN201910519812A CN110196040B CN 110196040 B CN110196040 B CN 110196040B CN 201910519812 A CN201910519812 A CN 201910519812A CN 110196040 B CN110196040 B CN 110196040B
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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Abstract
The invention belongs to the technical field of engineering measurement, and particularly relates to a building inclination monitoring device and a monitoring method thereof; through designing the pipe main part, the recess is seted up at the lateral part of pipe main part, set up the fiber grating sensor in the recess, utilize the vertical connection of piling up of pipe main part as the support, fixed fiber grating sensor, when the building is pour, with the slope monitoring devices body pre-buried in the concrete, the one-by-one circular telegram connection between the fiber grating sensor of each layer, the fiber grating sensor of the superiors passes through data acquisition line connection in the collection equipment that the optic fibre meets an emergency, through the collection equipment that the optic fibre meets an emergency regularly data acquisition in order to reach the purpose of building slope monitoring. This building slope monitoring devices make full use of fiber grating's precision height, the durability is strong, advantages such as real-time observation have realized that monitoring building gradient does not receive the high influence of building, and can real-time automatic acquisition, have practiced thrift the manpower, easy operation.
Description
Technical Field
The invention belongs to the technical field of engineering measurement, and particularly relates to a building inclination monitoring device and a monitoring method thereof.
Background
As the number of urbanized populations continues to increase, land building areas become more scarce. In order to improve the utilization rate of land building area, the building design height is higher and higher. The soil body can generate local sinking deformation under the action of the high-density building group load, once the soil body deforms excessively, local instability of the building can generate inclined deformation, and therefore, the method is particularly important for regularly observing the inclination of the building in the building construction and operation period. The former two methods have the advantages of simple instrument and equipment and simple and convenient construction method, and are widely adopted by construction units; however, these methods are greatly influenced by external wind power and site conditions, are difficult to operate in the process of detecting the verticality of the high-rise building, have low precision, and are only used when the building is low or when vertical axis transmission is performed. The laser plummet apparatus throwing measuring method has the advantages of convenience, quickness, intuition, no special requirements on construction sites, difficulty in mastering the size of a reserved hole in construction, inconvenience in throwing and measuring due to small size, safety for instruments and personnel due to large size, and difficulty in using when more shelters (protective nets) are arranged above a building. The total station is generally applied to engineering measurement at present, and the inclination of a building can be measured by using a prism-free distance measurement function of the total station or combining a reflector plate to replace a reflector and the like, but the method has high requirements on the visibility of the surrounding environment and the height of the building, is greatly influenced by weather during monitoring and has certain monitoring distance limitation.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing defects are overcome, and the building inclination monitoring device and the monitoring method thereof are provided.
In order to solve the technical problems, the invention adopts the technical scheme that:
a building inclination monitoring device comprises an inclination monitoring device body, wherein the inclination monitoring device body comprises a circular tube main body, a groove, a fiber bragg grating sensor, a data acquisition line and fiber strain acquisition equipment;
the number of the circular tube main bodies is more than 2, the grooves are formed in the outer side of the circular tube main bodies and are parallel to the axial direction of the circular tube main bodies;
the fiber bragg grating sensor is fixed in the groove;
the plurality of circular tube main bodies are coaxially connected, so that the corresponding grooves of the circular tube main bodies are positioned on the same straight line, and the fiber bragg grating sensors connected at the grooves of the circular tube main bodies are electrically connected;
the optical fiber strain acquisition equipment is arranged above the circular tube main body on the uppermost layer and is electrically connected with the fiber bragg grating sensor through a data acquisition line.
The invention has the beneficial effects that: according to the building inclination monitoring device, a circular tube main body is designed, a groove is formed in the side portion of the circular tube main body, fiber bragg grating sensors are arranged in the groove, the circular tube main body is vertically stacked and connected to serve as a support to fix the fiber bragg grating sensors, when a building is poured, the inclination monitoring device body is embedded in concrete, the fiber bragg grating sensors on each layer are connected in an electrified mode one by one, the fiber bragg grating sensors on the uppermost layer are connected to optical fiber strain acquisition equipment through data acquisition lines, and data are periodically acquired through the optical fiber strain acquisition equipment to achieve the purpose of building inclination monitoring. This building slope monitoring devices make full use of fiber grating's precision height, the durability is strong, advantages such as real-time observation have realized that monitoring building gradient does not receive the high influence of building, and can real-time automatic acquisition, have practiced thrift the manpower, easy operation.
Drawings
FIG. 1 is a schematic view of a portion of a building tilt monitoring apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a building tilt monitoring apparatus according to an embodiment of the present invention disposed at a specific arrangement orientation of a building;
FIG. 3 is a schematic structural diagram of a circular tube of a building inclination monitoring device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a circular tube of a building inclination monitoring device according to an embodiment of the present invention;
FIG. 5 is a schematic view of a plug structure of a building tilt monitoring apparatus according to an embodiment of the present invention;
description of reference numerals:
1. a circular tube body; 2. a groove; 3. reinforcing ribs; 4. a jack; 5. a latch device; 6. a fiber grating sensor; 7. a data acquisition line; 8. an optical fiber strain acquisition device; 9. a tilt monitoring device body;
10. the placement orientation.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The most key concept of the invention is as follows: utilize the vertical connection of piling up of pipe main part as the support, fixed fiber grating sensor when the building is pour, with the slope monitoring devices body pre-buried in the concrete, the one-by-one circular telegram is connected between the fiber grating sensor of each layer, through the purpose of the monitoring of building slope of regularly data acquisition of optic fibre collection equipment that meets an emergency.
Referring to fig. 1 to 5, the invention relates to a building inclination monitoring device, which comprises an inclination monitoring device body 9, wherein the inclination monitoring device body 9 comprises a circular tube main body 1, a groove 2, a fiber bragg grating sensor 6, a data acquisition line 7 and a fiber strain acquisition device 8;
the number of the circular tube main bodies 1 is multiple, the number of the grooves 2 is more than 2, the grooves 2 are arranged at the outer side part of the circular tube main bodies 1, and the grooves 2 are parallel to the axial direction of the circular tube main bodies 1;
the fiber bragg grating sensor 6 is fixed in the groove 2;
the plurality of circular tube main bodies 1 are coaxially connected, so that the grooves 2 corresponding to the circular tube main bodies 1 are positioned on the same straight line, and the fiber grating sensors 6 connected at the grooves 2 of the circular tube main bodies 1 are electrically connected;
the optical fiber strain acquisition equipment 8 is arranged above the circular tube main body 1 on the uppermost layer, and the optical fiber strain acquisition equipment 8 is electrically connected with the fiber bragg grating sensor 6 through a data acquisition line 7.
Among the above-mentioned building slope monitoring devices, through design pipe main part 1, recess 2 is seted up at the lateral part of pipe main part 1, set up fiber grating sensor 6 in recess 2, utilize the vertical connection of piling up of pipe main part 1 as the support, fixed fiber grating sensor 6, when the building is pour, with slope monitoring devices body 9 pre-buried in the concrete, the one-by-one circular telegram connection between the fiber grating sensor 6 of each layer, the fiber grating sensor 6 of the superiors connects in optic fibre collection equipment 8 that meets an emergency through data acquisition line 7, gather data in order to reach the purpose of building slope monitoring regularly through optic fibre collection equipment 8 that meets an emergency. This building slope monitoring devices make full use of fiber grating's precision height, the durability is strong, advantages such as real-time observation have realized that monitoring building gradient does not receive the high influence of building, and can real-time automatic acquisition, have practiced thrift the manpower, easy operation.
Furthermore, in the above structure of the building inclination monitoring device, the upper portion of the circular tube main body 1 is provided with a jack 4, the lower portion of the circular tube main body 1 is provided with a plug pin device 5, a vertical connection line from the jack 4 to the axis of the circular tube main body 1 is a first straight line, a vertical connection line from the plug pin device 5 to the axis of the circular tube main body 1 is a second straight line, and the first connection line is perpendicular to the second connection line.
As can be known from the description, the two adjacent circular tube main bodies 1 are butted through the plug pin and the jack 4, the connection limiting and fixing functions are achieved, and the connection mode is simple in structure and convenient to connect.
Further, in the above-mentioned building slope monitoring devices structure, the quantity of jack 4 is 4, and 4 jacks 4 set up respectively on four halving points on pipe main part 1 upper portion, the quantity of bolt device 5 is 4, and 4 bolt devices 5 set up respectively on four halving points on pipe main part 1 lower part.
It can be known from the above description, through set up 4 jacks 4 on 4 equi-spaced points on pipe main part 1 upper portion, set up 4 bolt devices 5 on 4 equi-spaced points of pipe main part 1 lower part correspondingly, when two pipe main parts 1 connect from top to bottom, 4 jacks 4 and 4 bolt devices 5 butt joint one by one, make the connection more stable, can keep 2 positions one-to-one of recess of two upper and lower pipes after the connection.
Further, in the above-mentioned building slope monitoring devices structure, the quantity of recess 2 is 4, and 4 recess 2 set up respectively on 4 bisectors of pipe main part 1.
Furthermore, in the structure of the building inclination monitoring device, a vertical connecting line of the groove 2 and the axis of the circular tube main body 1 is a third straight line, and an included angle between the adjacent first straight line and the third straight line is 45 degrees.
As can be seen from the above description, the positions of the insertion hole 4 and the insertion pin device 5 are separated from the positions of the groove 2 by the position arrangement of the groove 2, and the separation distances are the same, so that the structural strength of the circular tube main body 1 can be improved, and the inclination monitoring device body 9 has better durability.
Further, in the above-mentioned building slope monitoring devices structure, bolt device 5 includes bolt body, spring and drag hook, the upper end of bolt body is connected in the lower extreme of pipe main part 1, the lower extreme of drag hook is connected in the lower extreme of bolt body, the one end of spring is fixed in the inboard of bolt body, and the other end is fixed in the drag hook.
It can be known from the above description that, through being above-mentioned structure with bolt device 5 design, when the bolt body inserts jack 4, usable spring-back force of spring makes the drag hook catch on the 4 inner walls of jack, makes the connection between two upper and lower pipe main parts 1 more firm.
Further, in the structure of the building inclination monitoring device, the building inclination monitoring device further comprises a reinforcing rib 3, and the reinforcing rib 3 is arranged on the inner side of the circular tube main body 1.
Further, among the above-mentioned building slope monitoring devices structure, still include strengthening rib 3, strengthening rib 3 is the cross and distributes in the inboard of pipe main part 1, the side of strengthening rib 3 is connected respectively in recess 2 position.
As can be known from the above description, through set up criss-cross strengthening rib 3 in the inside of pipe main part 1, the side of strengthening rib 3 is connected respectively in recess 2 position, because make the bulk strength of pipe main part 1 descend after setting up recess 2 in the pipe main part 1 outside, can play the supporting role to the less strong region of pipe main part 1 through setting up strengthening rib 3.
The monitoring method of the building inclination monitoring device comprises the following steps:
step 1: determining an arrangement orientation 10 of the inclination monitoring device body 9, wherein the arrangement orientation 10 comprises any one of four corners of a building, four corners of a core tube, large corners or a middle column;
step 2: arranging the fiber bragg grating sensors 6 in each groove 2 of the inclination monitoring device body 9, wherein the fiber bragg grating sensors 6 arranged in the grooves 2 of the inclination monitoring device body 9 at the lowest end of the arrangement direction 10 are communicated with each other in pairs through the lower ends;
and step 3: before pouring in the arrangement direction 10, vertically fixing the inclination monitoring device body 9 with the fiber bragg grating sensor 6 arranged on the bottommost layer of the arrangement direction 10; then, pouring one layer each time, coaxially connecting the upper part of the inclination monitoring device body 9 with another inclination monitoring device body 9 which is provided with the fiber bragg grating sensors 6, so that the positions of the fiber bragg grating sensors 6 arranged on the two adjacent inclination monitoring device bodies 9 are in one-to-one correspondence and are in power-on connection;
and 4, step 4: when pouring to the building topmost layer, the fiber bragg grating sensor 6 arranged on the topmost layer inclination monitoring device body 9 is connected with the fiber strain acquisition equipment 8 through the data acquisition line 7, and primary data acquisition is performed through the fiber strain acquisition equipment 8.
In the monitoring method of the building inclination monitoring device, after the step 4, the method further includes the steps of:
and 5: after the acquisition of the initial data is completed, the optical fiber strain data is acquired at intervals.
Example 1
A building inclination monitoring device comprises an inclination monitoring device body 9, wherein the inclination monitoring device body 9 comprises a circular tube main body 1, a groove 2, a fiber bragg grating sensor 6, a data acquisition line 7 and a fiber strain acquisition device 8; the number of the circular tube main bodies 1 is multiple, the number of the grooves 2 is more than 2, the grooves 2 are arranged at the outer side part of the circular tube main bodies 1, and the grooves 2 are parallel to the axial direction of the circular tube main bodies 1; the fiber bragg grating sensor 6 is fixed in the groove 2; the plurality of circular tube main bodies 1 are coaxially connected, so that the grooves 2 corresponding to the circular tube main bodies 1 are positioned on the same straight line, and the fiber grating sensors 6 connected at the grooves 2 of the circular tube main bodies 1 are electrically connected; the optical fiber strain acquisition equipment 8 is arranged above the circular tube main body 1 on the uppermost layer, and the optical fiber strain acquisition equipment 8 is electrically connected with the fiber bragg grating sensor 6 through a data acquisition line 7.
The upper portion of pipe main part 1 is equipped with jack 4, the lower part of pipe main part 1 is equipped with bolt device 5, the perpendicular line of jack 4 to 1 axis of pipe main part is first straight line, the perpendicular line of bolt device 5 to 1 axis of pipe main part is the second straight line, first line perpendicular to second line. The quantity of jack 4 is 4, and 4 jacks 4 set up respectively on four equant points on 1 upper portion of pipe main part, the quantity of bolt device 5 is 4, and 4 bolt devices 5 set up respectively on four equant points of pipe main part 1 lower part. The quantity of recess 2 is 4, and 4 recesses 2 set up respectively on 4 bisectors of pipe main part 1.
The vertical connecting line of the groove 2 and the axis of the circular tube main body 1 is a third straight line, and the included angle between the adjacent first straight line and the third straight line is 45 degrees.
The bolt device 5 comprises a bolt body, a spring and a draw hook, wherein the upper end of the bolt body is connected with the lower end of the circular tube main body 1, the lower end of the draw hook is connected with the lower end of the bolt body, one end of the spring is fixed on the inner side of the bolt body, and the other end of the spring is fixed on the draw hook.
The building inclination monitoring device further comprises a reinforcing rib 3, and the reinforcing rib 3 is arranged on the inner side of the circular tube main body 1. Still include strengthening rib 3, strengthening rib 3 is the cross and distributes in the inboard of pipe main part 1, the side of strengthening rib 3 is connected respectively in recess 2 position.
Example 2
A method of monitoring a building tilt monitoring apparatus comprising the steps of:
step 1: determining an arrangement orientation 10 of the inclination monitoring device body 9, wherein the arrangement orientation 10 comprises any one of four corners of a building, four corners of a core tube, large corners or a middle column; the monitoring positions are arranged according to the building deformation measurement specification (JGJ 8-2016), and the required number of the devices is calculated by combining the building height and the height of the novel inclination device;
step 2: arranging the fiber bragg grating sensors 6 in each groove 2 of the inclination monitoring device body 9, wherein the fiber bragg grating sensors 6 arranged in the grooves 2 of the inclination monitoring device body 9 at the lowest end of the arrangement direction 10 are communicated with each other in pairs through the lower ends;
and step 3: before pouring in the arrangement direction 10, vertically fixing the inclination monitoring device body 9 with the fiber bragg grating sensor 6 arranged on the bottommost layer of the arrangement direction 10; then, pouring one layer each time, coaxially connecting the upper part of the inclination monitoring device body 9 with another inclination monitoring device body 9 which is provided with the fiber bragg grating sensors 6, so that the positions of the fiber bragg grating sensors 6 arranged on the two adjacent inclination monitoring device bodies 9 are in one-to-one correspondence and are in power-on connection;
and 4, step 4: when the device is poured to the uppermost layer of the building, the fiber bragg grating sensors 6 arranged on the inclination monitoring device body 9 on the uppermost layer are connected with the optical fiber strain acquisition equipment 8 through the data acquisition lines 7, and primary preset data are acquired through the optical fiber strain acquisition equipment 8;
and 5: after the acquisition of the preset data is completed, the optical fiber strain data is acquired at intervals, and the specific acquisition frequency can be specified and executed by building deformation measurement specification (JGJ 8-2016) on the frequency of inclination monitoring.
In summary, in the building inclination monitoring device provided by the invention, by designing the circular tube main body, forming the groove on the side portion of the circular tube main body, arranging the fiber grating sensors in the groove, using the vertical stacking connection of the circular tube main body as the support to fix the fiber grating sensors, embedding the inclination monitoring device body in concrete when building pouring, electrically connecting the fiber grating sensors of each layer one by one, connecting the fiber grating sensors of the uppermost layer to the optical fiber strain acquisition equipment through the data acquisition lines, and periodically acquiring data through the optical fiber strain acquisition equipment to achieve the purpose of building inclination monitoring. This building slope monitoring devices make full use of fiber grating's precision height, the durability is strong, advantages such as real-time observation have realized that monitoring building gradient does not receive the high influence of building, and can real-time automatic acquisition, have practiced thrift the manpower, easy operation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (4)
1. The building inclination monitoring device is characterized by comprising an inclination monitoring device body, wherein the inclination monitoring device body comprises a circular tube main body, a groove, a fiber bragg grating sensor, a data acquisition line and fiber strain acquisition equipment;
the number of the circular tube main bodies is more than 2, the grooves are formed in the outer side of the circular tube main bodies and are parallel to the axial direction of the circular tube main bodies;
the fiber bragg grating sensor is fixed in the groove;
the plurality of circular tube main bodies are coaxially connected, so that the corresponding grooves of the circular tube main bodies are positioned on the same straight line, and the fiber bragg grating sensors connected at the grooves of the circular tube main bodies are electrically connected;
the optical fiber strain acquisition equipment is arranged above the circular tube main body on the uppermost layer and is electrically connected with the fiber bragg grating sensor through a data acquisition line;
the upper part of the circular tube main body is provided with a jack, the lower part of the circular tube main body is provided with a plug pin device, a vertical connecting line from the jack to the axis of the circular tube main body is a first straight line, a vertical connecting line from the plug pin device to the axis of the circular tube main body is a second straight line, and the first straight line is perpendicular to the second straight line;
the number of the jacks is 4, the 4 jacks are respectively arranged on four equal division points on the upper part of the circular tube main body, the number of the bolt devices is 4, and the 4 bolt devices are respectively arranged on four equal division points on the lower part of the circular tube main body;
the number of the grooves is 4, and the 4 grooves are respectively arranged on 4 equally-divided lines of the circular tube main body;
a vertical connecting line of the groove and the axis of the circular tube main body is a third straight line, and an included angle between the adjacent first straight line and the third straight line is 45 degrees;
still include the strengthening rib, the strengthening rib is the cross and distributes in the inboard of pipe main part, the side of strengthening rib is connected respectively in recess position.
2. The building inclination monitoring device according to claim 1, wherein the latch device comprises a latch body, a spring and a drag hook, the upper end of the latch body is connected to the lower end of the round tube main body, the lower end of the drag hook is connected to the lower end of the latch body, one end of the spring is fixed to the inner side of the latch body, and the other end of the spring is fixed to the drag hook.
3. A method of monitoring the inclination of a building using a building inclination monitoring device according to any one of claims 1-2, comprising the steps of:
step 1: determining the arrangement position of the inclination monitoring device body, wherein the arrangement position comprises any one of four corners of a building, four corners of a core tube, a large corner or a middle column;
step 2: arranging the fiber bragg grating sensors in each groove of the inclination monitoring device body, wherein the fiber bragg grating sensors arranged in the grooves of the inclination monitoring device body at the lowest end of the arrangement direction are communicated with each other in pairs through the lower ends;
and step 3: before pouring in the arrangement direction, vertically fixing the inclination monitoring device body with the fiber bragg grating sensors on the bottommost layer of the arrangement direction; then, pouring one layer every time, coaxially connecting the upper part of the inclination monitoring device body with another inclination monitoring device body which is provided with the fiber bragg grating sensors, and enabling the positions of the fiber bragg grating sensors arranged on two adjacent inclination monitoring device bodies to be in one-to-one correspondence and in power-on connection;
and 4, step 4: when the device is poured to the uppermost layer of the building, the fiber bragg grating sensors arranged on the inclination monitoring device body on the uppermost layer are connected with the fiber strain acquisition equipment through the data acquisition lines, and primary preset data are acquired through the fiber strain acquisition equipment.
4. A method of monitoring using a building tilt monitoring apparatus as claimed in claim 3, further comprising, after step 4, the steps of:
and 5: after the acquisition of the initial data is completed, the optical fiber strain data is acquired at intervals.
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| CN113884110A (en) * | 2020-07-03 | 2022-01-04 | 江苏东曌建筑产业创新发展研究院有限公司 | Intelligent building sensor detection method |
| CN112461095B (en) * | 2020-10-13 | 2022-11-18 | 莫桑 | Building construction straightness detection device that hangs down |
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