CN202693175U - Prestress tension monitoring equipment - Google Patents
Prestress tension monitoring equipment Download PDFInfo
- Publication number
- CN202693175U CN202693175U CN 201220234901 CN201220234901U CN202693175U CN 202693175 U CN202693175 U CN 202693175U CN 201220234901 CN201220234901 CN 201220234901 CN 201220234901 U CN201220234901 U CN 201220234901U CN 202693175 U CN202693175 U CN 202693175U
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Abstract
The utility model discloses prestress tension monitoring equipment which comprises a sensor part and a control box, wherein the sensor part is connected with a data acquisition module inside the control box through a signal cable and a signal interface on the control box; the data acquisition module is connected with an intelligent all-in-one machine which is arranged on the control box in an embedded mode; the sensor part comprises a pressure sensor and a displacement sensor; the pressure sensor is used for measuring the hydraulic oil pressure which is pumped to enter a centre hole jack from a hydraulic pump station; the tensile force of the centre hole jack at present is obtained through an equation of linear regression which is calibrated through the hydraulic pump/centre hole jack; the displacement sensor is used for measuring the elongation quantity of a prestressed tendon driven by the centre hole jack during the tension process. By adoption of the equipment, the problem of whole course monitoring of a prestress component during the tension process is solved, the operation of construction personnel during the prestress tension process can be effectively constrained, the construction quality of the prestress component is improved, and the equipment has the advantages of simple structure and good generality, and is convenient to install and use.
Description
Technical field
The utility model relates to a kind of prestressed stretch-draw monitoring equipment.
Background technology
Prestressed stretch-draw adds pulling force exactly in advance in member, bear tension so that be applied in the prestressed stretch-draw member, and then so that it produces certain deformation, deals with the suffered load of member itself, to improve the load-bearing capacity of member itself.Prestressed stretch-draw is divided into " pre-tensioning system " and " post stretching " two kinds, in simple terms, " pre-tensioning system " be with deformed bar stretch, fixing after deposit concrete again, after concrete reaches prescribed strength, lay down again tensioner, cut away stretching end; " post stretching " is after first pouring concrete being reached prescribed strength, again the reinforcing bar in the reserving hole channel to be carried out stretch-draw and anchoring, and stretching process is finished in slip casting in the duct at last.
In work progress, according to the requirement of calculation on Construction, prestressed stretch-draw also is divided into one-end tension and symmetrical stretch-draw two classes, no matter be one-end tension or symmetrical stretch-draw, the program of stretch-draw all is to carry out according to the requirement of member designs.At present, in stretching process, requirement according to related specifications, standard, when arriving each regulation pulling force point, all need to hold lotus 5min, mostly the judgement of pulling force point is to see Fig. 2 by the tensimeter 51(that reads on the tensioning equipment) obtain, when arriving default spot pressure, the workmen sees Fig. 2 by one group of operation valve 52() control the oil pressure that enters in the lifting jack, to keep the pulling force of current lifting jack, then, the workmen also will measure and record reinforcing bar at the elongation at several regulation stretch-draw points place with steel ruler.After stretch-draw is complete, with the elongation addition at two ends, obtain the actual elongation of reinforcing bar after stretch-draw finishes, the calculating elongation with it during with design compares, and whether satisfies related request with the result of check stretch-draw.
In addition, in the prior art also relevant for the automatic controlled loading systematic research of prestressed stretch-draw, be the disclosed integrated autocontrol tester for prestressed stretch-draw anchor of patent of invention of CN1373347 such as publication number, but this kind equipment mainly is the package for control type, it is mainly by computing machine, system host and special-purpose assorted lifting jack three parts form, pass through computing machine, displacement transducer, pressure transducer, solenoid valves etc. are monitored and are assessed the work progress of prestressed stretch-draw, belong to a whole set of specialized equipment, system is comparatively complicated, and versatility is relatively poor.
To sum up, there are the following problems in most at present tensioning construction processes:
1, in the prestressed stretch-draw process, general member all needs to load step by step, namely need to and hold lotus in the pause of the pulling force point place of several regulations, otherwise the problems such as retraction, the loss of anchor mouth occur easily, thereby make presstressed reinforcing steel can not bring into play due effect.But in present work progress, normal needs for project process, after just arriving the spot pressure of regulation, the workmen namely measures the elongation of reinforcing bar at once, then and then just carry out the stretch-draw of next spot pressure, substantially ignore the requirement of holding the lotus time, thereby affected the quality of whole stretch-draw.
2, in the prestressed stretch-draw process, the workmen only records the value of thrust of lifting jack at several regulation points place and the elongation of reinforcing bar, and all be to obtain data by artificial meter reading and the method for reading chi, and the environment of prestressed girder field or construction site is generally all relatively poor, can there be larger personal error in reading, and measurement result is inaccurate.
3, in the prestressed stretch-draw process, all data all are that the workmen records by hand-written mode of filling in a form, therefore, even some abnormal conditions have appearred in certain stretch-draw, the workmen only needs just can change the measurement of correlation data by rule of thumb, the data that are delivered at last higher level department nearly all are qualified, when beam slab goes wrong, can't find out real reason.
The utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of simple in structure, prestressed stretch-draw monitoring equipment that versatility is good, to realize the whole process monitoring to the stretching prestressed component process, prevent that the workmen from distorting raw data, the operation of standard construction personnel in the prestressed stretch-draw process, thereby the construction quality of raising prestressed component.
For reaching this purpose, the utility model by the following technical solutions:
A kind of prestressed stretch-draw monitoring equipment, comprise Sensor section and control box, described Sensor section is connected with data acquisition module in the described control box by the signaling interface on signal cable and the described control box, described data acquisition module is connected with the intelligent integrated machine that embedding is arranged on the control box, described Sensor section comprises pressure transducer and displacement transducer, described pressure transducer is used for measuring the oil pressure that is entered into the hydraulic oil of centre-hole jack by the hydraulic power unit pump, equation of linear regression by hydraulic pump/centre-hole jack calibration obtains the pulling force of current centre-hole jack, and described displacement transducer is used for measuring the elongation of stretching process centre-hole jack shaft core driving pre-stressing tendon.
Preferably, described intelligent integrated machine is for adopting the interactive intelligent all-in-one of touch-screen.
Preferably, described pressure transducer communicates with the hydraulic oil that enters centre-hole jack by an oil pipe and the three-way connector that is arranged on the centre-hole jack oil inlet pipe, obtain current oil pressure, calculate the stretching force that obtains current centre-hole jack through conversion again.
Preferably, described displacement transducer is non-contact displacement transducer, described Sensor section also comprises the displacement transducer baffle plate, and described displacement transducer and displacement transducer baffle plate are used, to measure the elongation of lifting jack shaft core driving pre-stressing tendon in the stretching process.
Preferably, described pressure transducer and displacement transducer are integrated in the sensor box, and described sensor box is adsorbed on by magnetic bases on the outer wall of centre-hole jack, and described displacement transducer baffle plate is adsorbed on the axle center of centre-hole jack by magnetic bases.
Preferably, be provided with wireless communication module and the communication antenna that the encryption test data of will preserve uploads to higher authority's server on the described control box.
Preferably, described wireless communication module is the 3G/GPRS wireless communication module.
Preferably, be provided with communications band on the described control box medium is set.
Preferably, medium is set is that communications band arranges button to described communications band.
Preferably, when the situation of the symmetrical stretch-draw in prestressed component two ends is monitored, two described prestressed stretch-draw monitoring equipment radio communications that are used connect, wherein arbitrary monitoring equipment all can be arranged to main frame, another becomes slave automatically, main frame can be realized the control to main frame and slave, all can show in real time the stretch-draw information at prestressed component two ends on arbitrary monitoring equipment.
Principle of work of the present utility model is: by adopts pressure sensor, displacement transducer, data acquisition module and intelligent integrated machine, realization is to the real time record of each moment stretching force and presstressed reinforcing steel elongation data in the stretching process, finish the monitoring to whole stretching process, all data encryptions are preserved, and the workmen can't distort result data.After stretch-draw is complete, by the raw data that playback is preserved, can check very easily the stretching force of each time point lifting jack and the elongation of presstressed reinforcing steel, in addition, hold the data at lotus point place by analysis, can find out easily holding the lotus time of each stage of stretch-draw.
The beneficial effects of the utility model are: simple in structure, versatility is good, and is easy to install, can effectively retrain the operation of workmen in the prestressed stretch-draw process, thereby improve the construction technology of prestressed stretch-draw and the construction quality of prestressed component.
Description of drawings
Fig. 1 is the modular structure synoptic diagram of prestressed stretch-draw monitoring equipment of the present utility model;
Fig. 2 is the application structure synoptic diagram of the prestressed stretch-draw monitoring equipment of the utility model embodiment.
Among the figure: 1, control box; 11, power interface; 12, signaling interface; 13, communications band arranges button; 14, data output interface; 15, equipment total power switch; 16, interactive intelligent all-in-one; 17,3G/GPRS wireless communication module; 18, communication antenna; 2, Sensor section; 21, pressure transducer; 22, non-contact displacement transducer; 23, displacement transducer baffle plate; 24, sensor box; 25, magnetic bases; 3, signal cable; 4, centre-hole jack; 41, centre-hole jack axle center; 5, hydraulic power unit; 51, tensimeter; 52, operation valve; 6, oil pipe; 7, oil inlet pipe; 8, three-way connector;
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Shown in Fig. 1～2, the prestressed stretch-draw monitoring equipment of the utility model embodiment, comprise Sensor section and control box 1, described Sensor section 2 is connected by the signaling interface 11 on signal cable 3 and the described control box 1 and described control box 1 interior data acquisition module, described data acquisition module is connected with the intelligent integrated machine that embedding is arranged on the control box 1, described Sensor section 2 comprises pressure transducer 21 and displacement transducer, described pressure transducer 21 is used for measuring the oil pressure that is pumped into the hydraulic oil of centre-hole jack 4 by hydraulic power unit 5, equation of linear regression by hydraulic pump/centre-hole jack calibration obtains the pulling force of current centre-hole jack, and described displacement transducer is used for measuring the elongation that stretching process centre-hole jack axle center 41 drives pre-stressing tendon.
For being suitable for the use under the rugged surroundings of construction site, preferably, the intelligent integrated machine of present embodiment is for adopting the interactive intelligent all-in-one 16 of touch-screen.
Described pressure transducer 21 communicates with the hydraulic oil that enters centre-hole jack 4 by an oil pipe 6 and the three-way connector 8 that is arranged on the centre-hole jack oil inlet pipe 7, obtain current oil pressure, calculate the stretching force that obtains current centre-hole jack 4 through conversion again.
Be the dirigibility of assurance displacement transducer installation site and the versatility of monitoring equipment, preferably, the displacement transducer of present embodiment is non-contact displacement transducer 22, described Sensor section 2 also comprises displacement transducer baffle plate 23, described non-contact displacement transducer 22 and displacement transducer baffle plate 23 are used, to measure the elongation of lifting jack shaft core driving pre-stressing tendon in the stretching process.
For ease of adapting to the monitoring requirement of dissimilar tensioning equipments (centre-hole jack), preferably, described pressure transducer and displacement transducer are integrated in the sensor box 24, described sensor box 24 bottoms are provided with alnico magnets or magnetic bases 25, during use, sensor box 24 is installed on the outer wall of dissimilar centre-hole jack 4 easily by suction type, similarly, described displacement transducer baffle plate 23 bottoms also are provided with alnico magnets or magnetic bases 25, during use, be installed on the centre-hole jack axle center 41 by suction type.
Be provided with wireless communication module and communication antenna 18 that the encryption test data of will preserve uploads to higher authority's server on the described control box 1.
Preferably, the wireless communication module of present embodiment is 3G/GPRS wireless communication module 17.
After stretch-draw was complete, the encryption test data that the 3G/GPRS wireless communication module 17 on the described control box 1 will be preserved was carried out wireless uploading, and the server of higher authority receives immediately, then filed and the work such as datumization management.
Be provided with communications band on the described control box 1 medium is set, the touch-screen of button, knob or interactive intelligent all-in-one 16 is set such as communications band, like this when have two covers and more than tensioning equipment when working simultaneously, every group of prestressed stretch-draw monitoring equipment can by setting different communications bands, guarantee that the communication between every group of monitoring equipment is not subjected to other to organize the interference of monitoring equipments.
Preferably, medium is set is that communications band arranges button 13 to the communications band of present embodiment.
Preferably, when the situation of the symmetrical stretch-draw in prestressed component two ends is monitored, two described prestressed stretch-draw monitoring equipments that are used connect by special-purpose wireless station's radio communication, wherein arbitrary monitoring equipment all can be arranged to main frame, another becomes slave automatically, main frame can be realized the control to main frame and slave, thereby realizes single-ended operation, reduces monitoring personnel's configuration; In stretching process, all can show in real time the stretch-draw information at prestressed component two ends on arbitrary monitoring equipment, can be on arbitrary monitoring equipment the stretch-draw situation at real time inspection prestressed component two ends.
Also be provided with power interface 11, equipment total power switch 15 and data output interface 14 on the described control box 1.
When using the utility model that the prestressed stretch-draw process is monitored, only need to set up a three-way connector 8 at the oil inlet pipe 7 of former tensioning equipment (centre-hole jack), that vacant on oil pipe 6 and the three-way connector 8 port is connected, then sensor box 24 and displacement transducer baffle plate 23 are adsorbed on the relevant position of centre-hole jack, can realize the whole process monitoring to stretching process, need not again existing equipment to be carried out other repackings.
Prestressed stretch-draw monitoring equipment of the present utility model is applicable at present whole prestress tensioning equipments of each unit in charge of construction's use, and versatility is good, and equipment is installed simply, software application is convenient, has very strong applicability.In addition, the utility model adopts modular design, and the equipment set small volume is easy to carry and rapid-assembling, is effective equipment that upper management department monitors each unit in charge of construction's prestressed stretch-draw process.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. prestressed stretch-draw monitoring equipment, it is characterized in that: comprise Sensor section and control box, described Sensor section is connected with data acquisition module in the described control box by the signaling interface on signal cable and the described control box, described data acquisition module is connected with the intelligent integrated machine that embedding is arranged on the control box, described Sensor section comprises pressure transducer and displacement transducer, described pressure transducer is used for measuring the oil pressure that is entered into the hydraulic oil of centre-hole jack by the hydraulic power unit pump, equation of linear regression by hydraulic pump/centre-hole jack calibration obtains the pulling force of current centre-hole jack, and described displacement transducer is used for measuring the elongation of stretching process centre-hole jack shaft core driving pre-stressing tendon.
2. prestressed stretch-draw monitoring equipment according to claim 1 is characterized in that: described intelligent integrated machine is for adopting the interactive intelligent all-in-one of touch-screen.
3. prestressed stretch-draw monitoring equipment according to claim 1, it is characterized in that: described pressure transducer communicates with the hydraulic oil that enters centre-hole jack by an oil pipe and the three-way connector that is arranged on the centre-hole jack oil inlet pipe, obtain current oil pressure, calculate the stretching force that obtains current centre-hole jack through conversion again.
4. prestressed stretch-draw monitoring equipment according to claim 3, it is characterized in that: described displacement transducer is non-contact displacement transducer, described Sensor section also comprises the displacement transducer baffle plate, described displacement transducer and displacement transducer baffle plate are used, to measure the elongation of lifting jack shaft core driving pre-stressing tendon in the stretching process.
5. prestressed stretch-draw monitoring equipment according to claim 4, it is characterized in that: described pressure transducer and displacement transducer are integrated in the sensor box, described sensor box is adsorbed on by magnetic bases on the outer wall of centre-hole jack, and described displacement transducer baffle plate is adsorbed on the axle center of centre-hole jack by magnetic bases.
6. prestressed stretch-draw monitoring equipment according to claim 1 is characterized in that: be provided with wireless communication module and communication antenna that the encryption test data of will preserve uploads to higher authority's server on the described control box.
7. prestressed stretch-draw monitoring equipment according to claim 6, it is characterized in that: described wireless communication module is the 3G/GPRS wireless communication module.
8. prestressed stretch-draw monitoring equipment according to claim 1 is characterized in that: be provided with communications band on the described control box medium is set.
9. prestressed stretch-draw monitoring equipment according to claim 8, it is characterized in that: it is that communications band arranges button that described communications band arranges medium.
10. prestressed stretch-draw monitoring equipment according to claim 1, it is characterized in that: when the situation of the symmetrical stretch-draw in prestressed component two ends is monitored, two described prestressed stretch-draw monitoring equipment radio communications that are used connect, wherein arbitrary monitoring equipment all can be arranged to main frame, another becomes slave automatically, main frame can be realized the control to main frame and slave, all can show in real time the stretch-draw information at prestressed component two ends on arbitrary monitoring equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220234901 CN202693175U (en) | 2012-05-23 | 2012-05-23 | Prestress tension monitoring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220234901 CN202693175U (en) | 2012-05-23 | 2012-05-23 | Prestress tension monitoring equipment |
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| Publication Number | Publication Date |
|---|---|
| CN202693175U true CN202693175U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220234901 Expired - Fee Related CN202693175U (en) | 2012-05-23 | 2012-05-23 | Prestress tension monitoring equipment |
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| CN (1) | CN202693175U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234682A (en) * | 2013-05-13 | 2013-08-07 | 蔡青林 | Anchor rod tensometer |
| EP2863050A3 (en) * | 2013-08-28 | 2015-08-26 | NGK Spark Plug Co., Ltd. | Internal Combustion Engine Mounted with Combustion Pressure Sensor Incorporated Glow Plug and Sensor Nonincorporated Glow Plug |
| CN106245536A (en) * | 2016-09-28 | 2016-12-21 | 天津银龙高科新材料研究院有限公司 | A kind of program control tensioning equipment of prestress wire |
| CN107237265A (en) * | 2017-06-16 | 2017-10-10 | 中铁十六局集团路桥工程有限公司 | Magnetic floats engineering and closed the door falls beam intelligence control system and application method across prestressed stretch-draw and a high position |
| CN107830835A (en) * | 2017-12-07 | 2018-03-23 | 云南航天工程物探检测股份有限公司 | Bridge effective prestress detector and bridge effective prestress detection method |
| CN108930223A (en) * | 2018-09-30 | 2018-12-04 | 柳州欧维姆机械股份有限公司 | A kind of piston type damper device for cable real-time monitoring |
| CN111185749A (en) * | 2019-12-30 | 2020-05-22 | 五冶集团上海有限公司 | Spring compressor and control method thereof |
-
2012
- 2012-05-23 CN CN 201220234901 patent/CN202693175U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234682A (en) * | 2013-05-13 | 2013-08-07 | 蔡青林 | Anchor rod tensometer |
| CN103234682B (en) * | 2013-05-13 | 2015-06-17 | 蔡青林 | Anchor rod tensometer |
| EP2863050A3 (en) * | 2013-08-28 | 2015-08-26 | NGK Spark Plug Co., Ltd. | Internal Combustion Engine Mounted with Combustion Pressure Sensor Incorporated Glow Plug and Sensor Nonincorporated Glow Plug |
| CN106245536A (en) * | 2016-09-28 | 2016-12-21 | 天津银龙高科新材料研究院有限公司 | A kind of program control tensioning equipment of prestress wire |
| CN107237265A (en) * | 2017-06-16 | 2017-10-10 | 中铁十六局集团路桥工程有限公司 | Magnetic floats engineering and closed the door falls beam intelligence control system and application method across prestressed stretch-draw and a high position |
| CN107237265B (en) * | 2017-06-16 | 2019-02-26 | 中铁十六局集团路桥工程有限公司 | Magnetic floats engineering shutdown and falls beam intelligence control system and application method across prestressed stretch-draw and a high position |
| CN107830835A (en) * | 2017-12-07 | 2018-03-23 | 云南航天工程物探检测股份有限公司 | Bridge effective prestress detector and bridge effective prestress detection method |
| CN108930223A (en) * | 2018-09-30 | 2018-12-04 | 柳州欧维姆机械股份有限公司 | A kind of piston type damper device for cable real-time monitoring |
| CN111185749A (en) * | 2019-12-30 | 2020-05-22 | 五冶集团上海有限公司 | Spring compressor and control method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20160523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |