CN112611633A - Detection system for automatically detecting floor deflection deformation in static load test - Google Patents

Detection system for automatically detecting floor deflection deformation in static load test Download PDF

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Publication number
CN112611633A
CN112611633A CN202011386487.3A CN202011386487A CN112611633A CN 112611633 A CN112611633 A CN 112611633A CN 202011386487 A CN202011386487 A CN 202011386487A CN 112611633 A CN112611633 A CN 112611633A
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data
deflection deformation
load test
static load
module
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CN202011386487.3A
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简晓红
何淳健
汪婉妹
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Zhejiang Ruibangkete Testing Co ltd
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Zhejiang Ruibangkete Testing Co ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/06—Special adaptations of indicating or recording means
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
    • G01N2203/0075—Strain-stress relations or elastic constants
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0278—Thin specimens
    • G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0682—Spatial dimension, e.g. length, area, angle

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention discloses a detection system for automatically detecting floor deflection deformation in a static load test, which comprises a sensing module, an acquisition module and a data processing module, wherein the sensing module is placed on a floor, the output end of the sensing module is connected with the acquisition module, the output end of the acquisition module is connected with the data processing module, and a method for automatically reading deformation data after the loading of each level of the floor is finished through a strain sensor is adopted, so that the intermediate steps are omitted, the cost is saved, the data is more accurate and timely, and whether an overload phenomenon exists can be monitored in real time.

Description

Detection system for automatically detecting floor deflection deformation in static load test
Technical Field
The invention discloses a detection system for automatically detecting floor deflection deformation in a static load test, and particularly relates to the field of automatic detection of floor deflection deformation in constructional engineering.
Background
In the floor static load test, carry out the loading in grades to floor amount of deflection warp when being directed at every grade of loading is measured, and traditional detection method is that set up the scaffold frame or local support frame and fix the percentage table at the bottom of the board and measure at the bottom of the board, and traditional detection means has the defect in several aspects, and is first: a scaffold or a local support frame is required to be erected at the bottom of the plate, and the use space is limited; secondly, the method comprises the following steps: instability exists when the dial indicator is fixed by a scaffold or a local support frame; thirdly, when loading and unloading are carried out in a grading way, data reading of each grade needs to be manually read, and a large amount of labor cost and time cost are consumed.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a detection system for automatically detecting the deflection deformation of a floor slab in a static load test.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the detection system comprises a sensing module, an acquisition module and a data processing module, wherein the sensing module is placed on the floor, the output end of the sensing module is connected with the acquisition module, and the output end of the acquisition module is connected with the data processing module.
Furthermore, the sensing modules are distributed at the central point and four corner points of the floor slab, the corner sensors are installed and attached to the edge of the test support, and the central point sensors are used for observing and recording the mid-span deformation value U of the floor slabmObserving and recording the deformation value U of the floor support by using an angular point sensorc1、Uc2、Uc3、Uc4And carrying out weighted average on the deformation values of the four corner points to obtain the deformation value of the support
Figure BDA0002809838050000021
According to Us1＝Um-UcObtaining the actual deformation value U of the floor span after eliminating the influence of the support deformations1。
Furthermore, the sensing module establishes data interaction with the acquisition module through the sensing channel, the sensing channel utilizes a data transmission interface of the sensing module, a wired transmission network communication technology can be adopted to carry out integrated acquisition on data, and a 4G/5G network technology can also be adopted to realize real-time transmission of the data.
Further, the sensing module comprises a displacement sensor, the displacement sensor senses the deflection deformation degree of the floor, the displacement sensor is based on a sensor for measuring the deformation of an object caused by stress, and the minimum division value of the sensor is not more than 1% of the measurement result.
Furthermore, the acquisition module comprises a data acquisition instrument, the data acquisition instrument is a data acquisition instrument/graphic recorder, and functional modules for data acquisition, real-time display, data storage and data transmission are arranged in the data acquisition instrument/graphic recorder. Data are collected, stored and transmitted by testing voltage, temperature, humidity, pulse and logic signals, and measurement data can be displayed in real time.
Furthermore, the data processing module comprises a terminal device, at least one of a computer and a mobile device is adopted, the terminal device analyzes and processes the data transmitted by the data acquisition instrument, an early warning threshold value is set at the same time, an alarm is given to the overload phenomenon in the loading process, and a data report is arranged through the obtained data.
The invention has the following beneficial effects: the invention provides a detection system for automatically detecting floor deflection deformation in a static load test, (1) a method for automatically reading deformation data after each level of loading of a floor is finished through a strain sensor, so that intermediate steps are omitted, the cost is saved, and the data is more accurate and timely; (2) whether the overload phenomenon exists can be monitored in real time.
Drawings
Fig. 1 is a framework diagram of the present invention.
Fig. 2 is a schematic diagram of the present invention.
Fig. 3 is a flow chart of the present invention.
FIG. 4 is a data processing flow diagram of the present invention
Detailed Description
The invention is further described with reference to the following figures and detailed description.
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be noted that the embodiments are merely specific illustrations of the present invention, and should not be considered as limitations of the present invention, and the purpose of the embodiments is to make technical solutions of the present invention better understood and reproduced by those skilled in the art, and the protection scope of the present invention should be subject to the scope defined by the claims.
Referring to fig. 1, a detection system for automatically detecting floor deflection deformation in a static load test according to an embodiment of the present invention is described, the detection system includes a sensing module 10, an acquisition module 20 and a data processing module 30, the sensing module 1 is placed on a floor, an output end of the sensing module 1 is connected to the acquisition module 20, and an output end of the acquisition module 20 is connected to the data processing module 30.
As shown in fig. 3, the sensing modules are placed at 1, 2, 3, 4 and 5 of the floor slab 00, and can sense the deflection deformation of each area of the stone slab, so that the acquired data is more accurate.
As shown in fig. 2, the sensing module 10 establishes data interaction with the acquisition module 20 through a sensing channel 12.
Preferably, the sensing module 10 includes a strain sensor 11, the strain sensor 11 senses the deflection deformation degree of the floor, and the strain sensor 11 is a sensor based on measuring the strain generated by the forced deformation of the object.
Preferably, the acquisition module 20 includes a data acquisition instrument 21, and the data acquisition instrument 21 is a data acquisition instrument/graphic recorder, and stores and transmits data by testing voltage, temperature, humidity, pulse and logic signals.
Preferably, the data processing module 30 includes a terminal device 31, and the terminal device 31 analyzes and processes the data transmitted by the data acquisition instrument 21 by using at least one of a computer and an ipad, and sets an early warning threshold at the same time, and alarms an overload phenomenon occurring in a loading process, and sorts out a data report according to the obtained data.
As shown in fig. 4, the data processing flow is:
step 1, automatically collecting data;
step 2, data processing and analysis, when the acquired data is smaller than the early warning value, continuing to load the data, and returning to the step 1; and when the acquired data is greater than or equal to the early warning value, early warning and stopping loading.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

Claims (6)

1. The detection system for automatically detecting the floor deflection deformation in the static load test is characterized by comprising a sensing module, an acquisition module and a data processing module, wherein the sensing module is placed on the floor, the output end of the sensing module is connected with the acquisition module, and the output end of the acquisition module is connected with the data processing module.
2. The system for automatically detecting the deflection deformation of the floor slab in the static load test as claimed in claim 1, wherein the sensing modules are placed at the four corners and the middle position of the floor slab.
3. The system for automatically detecting the deflection deformation of the floor slab in the static load test according to claim 1, wherein the sensing module establishes data interaction with the acquisition module through a sensing channel.
4. The system for automatically detecting the deflection deformation of the floor slab in the static load test as claimed in claim 1, wherein the sensing module comprises a strain sensor, and the strain sensor senses the deflection deformation degree of the floor slab.
5. The system for automatically detecting the deflection deformation of the floor slab in the static load test according to claim 1, wherein the acquisition module comprises a data acquisition instrument.
6. The system for automatically detecting the deflection deformation of the floor slab in the static load test according to claim 1, wherein the data processing module comprises a terminal device.
CN202011386487.3A 2020-12-01 2020-12-01 Detection system for automatically detecting floor deflection deformation in static load test Pending CN112611633A (en)

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Citations (6)

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Publication number Priority date Publication date Assignee Title
EP2444787A1 (en) * 2010-10-22 2012-04-25 Vilnius Gediminas Technical University Method and device for bridge state evaluation using dynamic method
CN203704975U (en) * 2014-01-08 2014-07-09 广州市建设工程质量安全检测中心 Real-time high formwork monitoring and alarming system
CN108287103A (en) * 2017-12-06 2018-07-17 山东科技大学 A kind of general planar material tension, strain and deflection test device and test method
CN110132161A (en) * 2019-06-19 2019-08-16 厦门大学 A method of based on strain measurement mid-span deflection in bridge span
CN110553809A (en) * 2019-08-29 2019-12-10 朔黄铁路发展有限责任公司 Bridge performance state monitoring system, method and device
CN210533640U (en) * 2019-07-29 2020-05-15 湖南联智科技股份有限公司 Single-beam static load test intelligent control system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2444787A1 (en) * 2010-10-22 2012-04-25 Vilnius Gediminas Technical University Method and device for bridge state evaluation using dynamic method
CN203704975U (en) * 2014-01-08 2014-07-09 广州市建设工程质量安全检测中心 Real-time high formwork monitoring and alarming system
CN108287103A (en) * 2017-12-06 2018-07-17 山东科技大学 A kind of general planar material tension, strain and deflection test device and test method
CN110132161A (en) * 2019-06-19 2019-08-16 厦门大学 A method of based on strain measurement mid-span deflection in bridge span
CN210533640U (en) * 2019-07-29 2020-05-15 湖南联智科技股份有限公司 Single-beam static load test intelligent control system
CN110553809A (en) * 2019-08-29 2019-12-10 朔黄铁路发展有限责任公司 Bridge performance state monitoring system, method and device

Non-Patent Citations (3)

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Title
刘发军: "受弯木构件正常使用极限状态可靠度评估", 《中国优秀博硕士学位论文全文数据库(硕士) 工程科技Ⅱ辑》 *
王刚: "钢筋混凝土不连续约束板的试验研究", 《中国优秀博硕士学位论文全文数据库(博士) 工程科技Ⅱ辑》 *
龚斌文 等: "玄武岩与碳纤维片材加固混凝土双向板的性能比较", 《建筑施工》 *

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