CN106017568A - Structural health monitoring system of prefabricated assembly type concrete system, and integration method - Google Patents
Structural health monitoring system of prefabricated assembly type concrete system, and integration method Download PDFInfo
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- CN106017568A CN106017568A CN201610525473.2A CN201610525473A CN106017568A CN 106017568 A CN106017568 A CN 106017568A CN 201610525473 A CN201610525473 A CN 201610525473A CN 106017568 A CN106017568 A CN 106017568A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention provides an integration method of a structural health monitoring system of a prefabricated assembly type concrete system, and belongs to the technical field of building. One or more than one sensors are implanted into a prefabricated assembly type member, a sensor communication interface is arranged at the surface of the prefabricated assembly type concrete member, after each member is assembled in a field, in a decoration construction process, each sensor is then connected with a monitoring system analysis terminal through the sensor communication interface of the member, and thus various structure information of the member can be transmitted to the monitoring system terminal through the sensors. According to the invention, sensor arrangement and erection of the monitoring system are embedded in the construction flow of an assembly type concrete structure, sensor implantation can be realized in a member mode, customization and standardization of a sensing function of the member is realized, and assembling and integration of the structural health monitoring system are also realized.
Description
Technical field
The invention belongs to technical field of buildings, particularly relate to the structure of a kind of prefabricated assembled concrete system
Health monitoring systems and integrated approach.
Background technology
Along with the development of science and technology, fiber-optic grating sensor is gradually applied to the health monitoring of reinforced concrete structure
In, have developed such as FBG strain gauge, fiber grating accelerometer, Optical Fiber Grating Displacement Meter,
The Fibre Optical Sensor product of the different properties such as light grating temperature sensor, compared with traditional electrical sensor,
Fiber-optic grating sensor has the advantage that
1. electromagnetism interference, the advantage such as highly sensitive, corrosion-resistant, waterproof.
2. fiber grating collection senses and is transmitted in one, it is easy to embedment material internal.Meanwhile, small volume,
It is easy to stick on the surface of structure, on the premise of the globality not changing structure, it is achieved to temperature, strain
Accurate measurement etc. physical quantity.
3. fiber-optic grating sensor is applied and is had precision height, distance in the health monitoring of civil engineering structure
Far, it is distributed wide, the long feature of effective time, there is the biggest use future and development space.
At present, at building engineering field, structural healthy monitoring system based on fiber grating sensing technology is main
It is applied in cast-type reinforced concrete structure, it is achieved method mainly has two kinds: 1. with site operation mistake
Journey, is embedded in fiber-optic grating sensor at the key position of each component, and carries out cabling along reinforcing bar；2. existing
After the concrete pouring construction of field, the modes such as boring are used to carry out the embedding of sensor, and along component surface
Carry out cabling.
The above-mentioned fiber grating health monitoring systems being applied in monolithic reinforced concrete structure remains following tired
Difficult: 1. construction condition is severe, when vibrated concrete, easily cause fiber-optic grating sensor and
A large amount of damages of the optical fiber cabling of transmitting signal, survival rate is extremely low；2. monolithic reinforced concrete structure cannot be
Accurate the most advantageously alignment sensor in casting process, or sensor shift can be caused because of concrete vibrating, it is difficult to
Ensure the extraction accurately and timely of structural key member stress information；3. take as carried out system after integral construction
If not only the installation of sensor can produce additional injury to structure, cabling is the most bad to be hidden and easy and finishing
Clash.
Summary of the invention
For the technical problem of above-mentioned existence, the present invention provides the structure of a kind of prefabricated assembled concrete system
Health monitoring systems and integrated approach, the present invention, will sensing in the construction flow process of prefabricated concrete structure
Device is arranged and is embedded in prefabricated concrete structure with building of system of monitoring, can realize the structure that sensor is implanted
Part, the customization of component sensing function, standardization, the assembling of structural healthy monitoring system, integrated
Change.
It is an object of the invention to be achieved through the following technical solutions:
The integrated approach of the structural healthy monitoring system of the present invention a kind of prefabricated assembled concrete system, by one
Plant or prefabricated assembled component inside implanted by more than one sensors, sensor communication interfaces is placed in prefabricated
The surface of assembly concrete component, after treating each component assembled in situ, during decoration construction, then
It is connected to monitor systematic analysis terminal by the sensor communication interfaces of component by each sensor, so that component
Various structural informations by the sensor to monitoring system terminal transmit.
Further, described sensor is temperature sensor, concrete strain sensor, reinforcing bar strain sensing
Device or acceleration transducer.
Further, described prefabricated assembly concrete component is prefabricated superimposed sheet component, precast beam structure
Part, precast shear wall component or precast column unit.
The structural healthy monitoring system of a kind of prefabricated assembled concrete system, at prefabricated assembly concrete
One or more sensors preset in component, described sensor communication interfaces is placed in prefabricated assembled and mixes
The surface of solidifying soil component, during test, each sensor is linked into monitoring by fiber optic conduction or conductivity mode
Systematic analysis terminal, constitutes health monitoring systems.
Further, described sensor is employing fiber optic conduction or the temperature sensor of conductivity mode, mixes
Solidifying soil strain transducer, reinforcing bar strain transducer or acceleration transducer.
Further, described prefabricated assembly concrete component is prefabricated superimposed sheet component, precast beam structure
Part, precast shear wall component or precast column unit.
The invention have the benefit that
1. the industrialization of the process of setting up of structural healthy monitoring system with prefabricated concrete structure is built by the present invention
Technology of making is coordinated mutually, embedding for the sensor of structural healthy monitoring system and whole monitoring system is connected and carried out
Journey is decomposed: 1. the installation of sensor incorporates among the plant produced of prefabricated components；2. system connection procedure is put
Assemble in overall structure and carried out (fitment process can be synchronized with) afterwards.Thus, it is possible to greatest extent
That improves sensor is implanted to motility rate, it is to avoid cabling and other Architectural Equipment, the conflicting of pipeline.
2. prefabricated components first factory for prefabrication make after again hoisting transportation to job site.Factory for prefabrication
In Factory Building, construction environment is excellent, and mold clean is clean, and built-in fitting, preformed hole position on mould are accurately installed
Firm, it is high that concrete pouring workers trains level, and in casting process, compare can be to greatest extent for relatively site operation
Avoid the destruction to sensor, it is ensured that the survival rate of fiber-optic grating sensor and at component inside cabling
Reasonable, safety.
3. prefabricated components independently make completely, can arrange that different fiber gratings passes in different prefabricated components
Sensor, it is possible to complete the extraction of the structural informations such as the stress of component aspect, strain, acceleration, can basis
Need to produce the optical fiber grating sensing modular structure of equipment different structure acquisition of information function, further according to building
The detection requirement of structure carries out reasonable combination collocation.Therefore, sensor configuration can be greatly enhanced and use spirit
Activity, can realize the customization of structural healthy monitoring system function, modularity.
4. the plant component mode of production of fabricated assembly overall xoncrete structure and on-site consolidation technique, for
Building structure health monitoring systems based on fiber grating sensing technology is built and is found new meeting point.Will sensing
Device is arranged and is embedded among the construction flow process of prefabricated concrete structure with building of system of monitoring, can realize passing
The componentization that sensor is implanted, the customization of component sensing function, standardization, the dress of structural healthy monitoring system
Joining, integrated.
Accompanying drawing explanation
Fig. 1 is that the typical sensors interface of prefabricated superimposed sheet component is arranged and internal sensor layout drawing.
Fig. 2 is that the typical sensors interface of precast beam unit is arranged and internal sensor layout drawing.
Fig. 3 is that the typical sensors interface of precast shear wall component is arranged and internal sensor layout drawing.
Fig. 4 is that the typical sensors interface of precast column unit is arranged and internal sensor layout drawing.
Fig. 5 is that the fiber grating health monitoring systems of prefabricated assembled concrete structure is monolithically fabricated figure.
In figure: the most prefabricated superimposed sheet component, 2. reinforcing bar strain transducer, 3. acceleration transducer, 4. optical fiber
Pick out port, 5. concrete strain sensor, 6. precast beam unit, 7. precast shear wall component, 8. temperature
Sensor, 9. precast column unit.
Detailed description of the invention
Describe the present invention with embodiment below in conjunction with the accompanying drawings.
Embodiment 1: as Figure 1-Figure 5, the structural health of the present invention a kind of prefabricated assembled concrete system
The integrated approach of monitoring system, implants prefabricated assembled component inside by one or more sensors, will
Sensor communication interfaces is placed in the surface of prefabricated assembly concrete component, treats that each component assembled in situ is complete
After, during decoration construction, more each sensor is connected to monitoring by the sensor communication interfaces of component
Systematic analysis terminal, so that the various structural informations of component are passed to monitoring system terminal by the sensor
Pass.
The structural healthy monitoring system of prefabricated assembled concrete system of the present invention, at prefabricated assembled coagulation
One or more sensors preset in soil component, described sensor communication interfaces is placed in prefabricated assembled
The surface of concrete component, during test, each sensor is linked into prison by fiber optic conduction or conductivity mode
Examining system analysing terminal, constitutes health monitoring systems.
Described sensor is to use fiber optic conduction or the temperature sensor 8 of conductivity mode, concrete strain
Sensor 5, reinforcing bar strain transducer 2 or acceleration transducer 3.
Described prefabricated assembly concrete component is prefabricated superimposed sheet component 1, precast beam unit 6, prefabricated cuts
Power wall member 7 or precast column unit 9.
Fig. 1 is that the fiber-optic grating sensor of Prefabricated stacking floor arranges schematic diagram.Sensor type, position and
Quantity all can be combined as required, and then forms the customization laminated floor slab with different sensing function
Component.Fig. 1 is by superimposed sheet section (wave top half) and (wave lower half, superimposed sheet bottom surface
Point) synthesis be explained.In figure, the superimposed sheet section of the first half illustrates the typical sensors cloth at intralaminar part
If situation.During factory pours precast floor slab, by order to monitor adding of Vertical Floor Vibration comfort level
Velocity sensor is arranged in precast floor slab span centre and the distance certain safe distance of edges of boards edge (not affect board member
Assembling construction be limited) position；In plate, reinforcing bar outer surface can arrange reinforcing bar strain transducer；Will
Above-mentioned acceleration transducer and reinforcing bar strain transducer etc. customize sensing element reinforcing bar along plate and carry out cabling,
It is ultimately connected to optical fiber and picks out port.The plate bottom surface of lower half in the drawings, i.e. superimposed sheet girder rib face is right
Face, the distance certain safe distance of edges of boards edge arranges optical fiber and picks out port.So, component port and in order to be formed
The member exterior cabling of whole monitoring system can be hidden in inside the finishing furred ceiling layer of plate bottom surface, it is simple to coordinates dress
Repair layer internal unit and the collision that may be present of various pipeline and conflict.
Fig. 2 is the transducer arrangements system of precast beam, the beam section of left side and the beam surface of right-hand part close
One-tenth is explained.At the reinforcement stresses larger part Pasting reinforcing bar such as the span centre of beam and bearing two end bar outer surface
Strain transducer；Or can arrange concrete near the concrete in tension such as beam end or pressurized zone in girder span should
Become sensor；Strain transducer can be sticked on adapter (such as the sleeve etc.) surface of beam end；And by optical fiber
The optical fiber that cabling fine duct is connected to beam outer surface along longitudinal reinforcement picks out port.Precast beam optical fiber
Pick out port will in view of construction assembling requirement, with can facilitate external cabling and not with miscellaneous equipment or
Pipeline produces collision or conflict is configured for important business.
Fig. 3 is the transducer arrangements system of precast shear wall, by wall section and the wall table of right-hand part of left side
Face synthesis is explained.The joist surface mount at the middle part of precast shear wall and four edges can be selected
Reinforcing bar strain transducer；As exterior wall can arrange temperature sensor for monitoring precast shear wall body through-thickness
Variations in temperature；Adapter (such as the sleeve etc.) surface of bottom can stick strain transducer on the wall；And
The concrete strain of concrete strain sensor monitoring precast shear wall body can be set.At shear wall distance edge
Arranging at certain safe distance and pick out port, the convenient system cabling with member exterior is attached, and equally
Avoid and miscellaneous equipment or the collision of pipeline and conflict.
Fig. 4 is the transducer arrangements system of prefabricated post, the post section of the first half and the post surface of lower half close
One-tenth is explained.The reinforcing bar outer surface Pasting reinforcing bar of crucial forced position such as in the middle part of prefabricated post, end
Strain transducer；Strain transducer can be sticked on adapter (such as the sleeve etc.) surface of column end；In post
Portion can arrange that concrete strain sensor is used for monitoring axis of a cylinder to compressive strain.Cabling and optical fiber pick out the position of port
Put selection principle ibid.
Fig. 5 is the fiber grating health monitoring systems pie graph of this prefabricated assembled concrete structure.This assembling
Formula xoncrete structure health monitoring systems is by being imbued with cloth personalized, the most on-demand inside prefabricated components
Putting respective sensor group, the optical fiber cabling of transmitting signal is connected to component appearance at component inside by fine duct
The optical fiber in face picks out port.After overall structure assembling assembly completes, synchronize to carry out respectively at structure decoration stage
Connection and the connection with optical fiber grating sensing master control system outside component between sensing member, thus form whole dress
Join the health monitoring systems of formula building structure.By this kind of system integration method so that various sensors are permissible
It is arranged according to demand in corresponding prefabricated components, independent assortment, on-demand configuration, it is achieved whole health monitoring
The componentization of system, assemblingization and integrated, can ensure survival rate and the prison of Fibre Optical Sensor to greatest extent
Examining system stable, efficient.
Claims (6)
1. an integrated approach for the structural healthy monitoring system of prefabricated assembled concrete system, its feature exists
In: one or more sensors are implanted prefabricated assembled component inside, sensor communication interfaces is put
In the surface of prefabricated assembly concrete component, after treating each component assembled in situ, in decoration construction mistake
Cheng Zhong, then be connected to monitor systematic analysis terminal by the sensor communication interfaces of component by each sensor, from
And make the various structural informations of component be transmitted to monitoring system terminal by the sensor.
The most according to claim 1, the structural healthy monitoring system of prefabricated assembled concrete system is integrated
Method, it is characterised in that: described sensor is temperature sensor, concrete strain sensor, reinforcing bar strain
Sensor or acceleration transducer.
The most according to claim 1, the structural healthy monitoring system of prefabricated assembled concrete system is integrated
Method, it is characterised in that: described prefabricated assembly concrete component is prefabricated superimposed sheet component, precast beam
Component, precast shear wall component or precast column unit.
4. the structural healthy monitoring system of a prefabricated assembled concrete system, it is characterised in that: in advance
One or more sensors preset in the assembly concrete component of system, described sensor communication interfaces is put
In the surface of prefabricated assembly concrete component, during test, each sensor passes through fiber optic conduction or fax
The mode of leading is linked into monitoring systematic analysis terminal, constitutes health monitoring systems.
The most according to claim 4, the structural healthy monitoring system of prefabricated assembled concrete system, it is special
Levy and be: described sensor is employing fiber optic conduction or the temperature sensor of conductivity mode, concrete should
Become sensor, reinforcing bar strain transducer or acceleration transducer.
The most according to claim 4, the structural healthy monitoring system of prefabricated assembled concrete system, it is special
Levy and be: described prefabricated assembly concrete component is prefabricated superimposed sheet component, precast beam unit, prefabricated
Shear wall component or precast column unit.
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Cited By (5)
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| CN108917830A (en) * | 2018-06-19 | 2018-11-30 | 杭州市质量技术监督检测院 | A kind of intelligent wall with self-induction function |
| CN110319879A (en) * | 2019-06-19 | 2019-10-11 | 青岛理工大学 | A kind of safety characteristics intelligent monitoring technology for building life cycle management |
| CN110750059A (en) * | 2019-09-18 | 2020-02-04 | 同济大学 | Multi-sensor system for monitoring performance of fabricated building |
| CN112395714A (en) * | 2021-01-20 | 2021-02-23 | 华中科技大学 | Part design and processing method and system with embedded sensor |
| CN112903018A (en) * | 2021-01-26 | 2021-06-04 | 北京凯盛建材工程有限公司 | Sensing device for fabricated building floor, prefabricated floor component and assembling method thereof |
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| CN106017568B (en) | 2018-12-25 |
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