WO2017018845A1 - 포스트텐션 긴장력 컨트롤 시스템 - Google Patents
포스트텐션 긴장력 컨트롤 시스템 Download PDFInfo
- Publication number
- WO2017018845A1 WO2017018845A1 PCT/KR2016/008331 KR2016008331W WO2017018845A1 WO 2017018845 A1 WO2017018845 A1 WO 2017018845A1 KR 2016008331 W KR2016008331 W KR 2016008331W WO 2017018845 A1 WO2017018845 A1 WO 2017018845A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tension
- data
- hydraulic
- hydraulic jack
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/121—Construction of stressing jacks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—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 length, width, or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/083—Means for indicating or recording, e.g. for remote indication electrical
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/086—Means for indicating or recording, e.g. for remote indication for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/047—Specific indicating or recording arrangements, e.g. for remote indication, for indicating overload or underload
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/06—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using mechanical means
Definitions
- the present invention relates to a post-tension tension control system capable of accurately applying tension to a member by accurately measuring the tension of the tension member and managing the tension force introduced into the plurality of tension members through the main server.
- the tension of the tension member is measured by a method of reading the pressure gauge of the pressure pump and measuring the distance that the piston of the hydraulic jack moves.
- the error range is determined by measuring the elongation after tension of the tension member with a tape measure, but since the elongation amount varies depending on the friction coefficient or the length of the stranded wire, there is no way to accurately determine the magnitude of the applied tension force even when the elongation is measured.
- the present invention is to accurately measure the tension force of the tension material and to manage the tension force introduced into the plurality of tension material through the main server, to provide a post-tension tension control system that can apply a uniform tension force to the member do.
- the present invention according to a preferred embodiment for controlling the tension of the tension member provided in the concrete structure, the hydraulic jack coupled to the tension member at one end of the concrete structure to apply a tension force to the tension material by the advance of the piston;
- a hydraulic pump connected to the hydraulic jack and a hydraulic supply pipe to supply hydraulic pressure to the hydraulic jack;
- a digital extension length measurement sensor provided in the hydraulic jack to measure an extension length of the piston;
- a measuring unit including a data logger for receiving, storing, and transmitting the stretched length data measured by the digital stretched length measuring sensor;
- a digital pressure measuring sensor provided in the hydraulic pressure supply pipe of the hydraulic pump;
- a control module for receiving the tension length data from the data logger or the main server to calculate the tension force, and correcting the tension force calculated by correcting the elastic modulus of the tension member according to the ratio of the real-time extension length data and the pressure data. It provides a post-tension tension control system, characterized in that consisting of.
- control module provides a post-tension tension control system for stopping the driving of the hydraulic jack by controlling the hydraulic pump when the pressure data measured by the digital pressure measuring sensor reaches a set value. do.
- a reference point is marked on one side of the tension member exposed to the outside of the concrete structure, and one side of the hydraulic jack is provided with a position sensor for measuring a moving distance of the reference point, and the control module drives the hydraulic jack.
- Post-tension tension control system characterized in that for correcting the elongation length according to the reference point moving distance measured by the position sensor after the stop.
- the piston extension length of the hydraulic jack can be accurately measured by the digital extension length measurement sensor and multiplied by the coefficient to accurately measure the tension force of each tension member. Therefore, by managing the tension force introduced to the plurality of tension members through the main server, it is possible to apply a uniform tension force to the member.
- FIG 1 illustrates the present invention post tension tension control system.
- FIG. 2 is a conceptual diagram of a measuring unit.
- Figure 3 illustrates the present invention post tension tension control system with a digital pressure measurement sensor.
- Figure 4 illustrates the present invention post tension tension control system equipped with a mobile terminal.
- 5 is an overall conceptual view of the post-tension tension control system of the present invention.
- the post-tension method in which tensile stress is introduced into the member by tensioning and fixing the tension member 11 such as steel wire after concrete hardening, the individual tension force of the plurality of tension members 11 disposed in the concrete beam or slab, etc. is measured. This is to control the uniform tension to be introduced.
- the post-tension tension control system of the present invention is coupled to the tension member 11 at one end of the concrete structure 1 to apply a hydraulic force to the tension member 11 by advancing the piston 21.
- a hydraulic pump (3) connected to the hydraulic jack (2) and a hydraulic supply pipe (31) to supply hydraulic pressure to the hydraulic jack (2);
- a digital extension length measuring sensor (4) provided in the hydraulic jack (2) for measuring the extension length of the piston (21);
- a measuring unit (5) including a data logger (51) for receiving, storing and transmitting the stretched length data measured by the digital stretched length measuring sensor (4);
- a digital pressure measuring sensor 8 provided in the hydraulic pressure supply pipe 31 of the hydraulic pump 3; And calculating the tension force by receiving the stretch length data from the data logger 51 or the main server 6, and correcting the tension force calculated by correcting the elastic modulus of the tension member 11 according to the ratio of the real-time stretch length data and the pressure data.
- a control module 7 Characterized in that consists of.
- a displacement meter can be used as an example of the digital stretch length measuring sensor 4.
- FIG 3 is a view showing the present invention post tension tension control system with a digital pressure measurement sensor
- Figure 4 is a view showing the present invention post tension tension force control system equipped with a mobile terminal
- Figure 5 is a post invention The overall conceptual diagram of the tension tension control system.
- the hydraulic pump 3 is preliminarily used by the digital pressure measurement sensor 8. In order to measure the tension force by measuring the pressure of the fluid supplied to the hydraulic jack (2).
- control module 7 controls the hydraulic pump 3 by using the pressure data to stop the driving of the hydraulic jack 2.
- a method of stopping the hydraulic jack 2 by monitoring the extension length data may be considered, but as described above, there is a time difference between the hydraulic supply of the hydraulic pump 3 and the expansion of the piston 21 of the hydraulic jack 2. . Therefore, when the hydraulic pump 3 is controlled by the extension length data, it is preferable to control the hydraulic pump 3 by the pressure data, since the tension member 11 may miss the stopping point of the hydraulic jack 2. .
- the measuring unit 5 is provided with a short-range wireless communication module 52 for transmitting the collected data to the mobile terminal 9, the mobile terminal 9 is received
- the data can be transmitted to the main server 6.
- the data viewer application and the data measuring application may be the same application.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Reinforcement Elements For Buildings (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
Claims (4)
- 콘크리트 구조물(1) 내에 구비되는 긴장재(11)의 긴장력을 컨트롤하기 위한 것으로,콘크리트 구조물(1) 일단에서 긴장재(11)에 결합되어 피스톤(21)의 전진에 의해 긴장재(11)에 긴장력을 가하는 유압잭(2);상기 유압잭(2)과 유압공급관(31)으로 연결되어 유압잭(2)에 유압을 공급하는 유압펌프(3);상기 유압잭(2)에 구비되어 피스톤(21)의 신장길이를 측정하는 디지털 신장길이 측정센서(4);상기 디지털 신장길이 측정센서(4)에서 측정된 신장길이 데이터를 수신하여 저장하고 메인서버(6)로 송신하는 데이터로거(51)가 포함된 측정유닛(5);상기 유압펌프(3)의 유압공급관(31)에 구비되는 디지털 압력측정센서(8); 및상기 데이터로거(51) 또는 메인서버(6)로부터 신장길이 데이터를 수신하여 긴장력을 산출하고, 실시간 신장길이 데이터와 압력 데이터 비에 따라 긴장재(11)의 탄성계수를 보정하여 산출되는 긴장력을 보정하는 제어모듈(7); 로 구성되는 것을 특징으로 하는 포스트텐션 긴장력 컨트롤 시스템.
- 제1항에서,상기 제어모듈(7)은 디지털 압력측정센서(8)에서 측정된 압력 데이터가 설정된 값에 도달 시 유압펌프(3)를 제어하여 유압잭(2)의 구동을 정지시키는 것을 특징으로 하는 포스트텐션 긴장력 컨트롤 시스템.
- 제1항에서,상기 측정유닛(5)에는 수집된 데이터를 모바일 단말기(9)로 송신하는 근거리 무선통신모듈(52)이 구비되고, 상기 모바일 단말기(9)는 수신된 데이터를 메인서버(6)로 송신하는 것을 특징으로 하는 포스트텐션 긴장력 컨트롤 시스템.
- 제1항에서,상기 콘크리트 구조물(1) 외부로 노출된 긴장재(11) 일측에는 기준점(12)이 마킹되고, 상기 유압잭(2) 일측에는 상기 기준점(12)의 이동 거리를 측정하는 위치감지센서(10)가 구비되어, 상기 제어모듈(7)이 유압잭(2)의 구동 정지 후 위치감지센서(10)에 의해 측정된 기준점(12) 이동 거리에 따라 신장길이를 보정하는 것을 특징으로 하는 포스트텐션 긴장력 컨트롤 시스템.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/509,519 US10066405B2 (en) | 2015-07-29 | 2016-07-29 | System for monitoring tension force of tendon in post-tensioning |
| MX2018001231A MX2018001231A (es) | 2015-07-29 | 2016-07-29 | Sistema para la supervisión de la fuerza de tensión del tendón en postensado. |
| ES16830878T ES2835891T3 (es) | 2015-07-29 | 2016-07-29 | Sistema de control de fuerzas de pretensado en postensión |
| AU2016299573A AU2016299573B2 (en) | 2015-07-29 | 2016-07-29 | Post-tension pre-stressing force control system |
| BR112018001888-0A BR112018001888B1 (pt) | 2015-07-29 | 2016-07-29 | Sistema para monitorar a força de tensão de tendão em pós-tensionamento |
| CN201680056425.1A CN108350698B (zh) | 2015-07-29 | 2016-07-29 | 后张法预应力控制系统 |
| CA3032280A CA3032280C (en) | 2015-07-29 | 2016-07-29 | System for monitoring tension force of tendon in post-tensioning |
| EP16830878.1A EP3330459B1 (en) | 2015-07-29 | 2016-07-29 | Post-tension pre-stressing force control system |
| US16/119,714 US10844619B2 (en) | 2015-07-29 | 2018-08-31 | System for monitoring tension force of tendon in post-tensioning |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150107506A KR101643732B1 (ko) | 2015-07-29 | 2015-07-29 | 포스트텐션 긴장력 컨트롤 시스템 |
| KR10-2015-0107506 | 2015-07-29 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/509,519 A-371-Of-International US10066405B2 (en) | 2015-07-29 | 2016-07-29 | System for monitoring tension force of tendon in post-tensioning |
| US16/119,714 Continuation US10844619B2 (en) | 2015-07-29 | 2018-08-31 | System for monitoring tension force of tendon in post-tensioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017018845A1 true WO2017018845A1 (ko) | 2017-02-02 |
Family
ID=56681840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2016/008331 Ceased WO2017018845A1 (ko) | 2015-07-29 | 2016-07-29 | 포스트텐션 긴장력 컨트롤 시스템 |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US10066405B2 (ko) |
| EP (1) | EP3330459B1 (ko) |
| KR (1) | KR101643732B1 (ko) |
| CN (1) | CN108350698B (ko) |
| AU (1) | AU2016299573B2 (ko) |
| BR (1) | BR112018001888B1 (ko) |
| CA (1) | CA3032280C (ko) |
| ES (1) | ES2835891T3 (ko) |
| MX (1) | MX2018001231A (ko) |
| WO (1) | WO2017018845A1 (ko) |
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| KR101643732B1 (ko) | 2015-07-29 | 2016-07-28 | 서울대학교산학협력단 | 포스트텐션 긴장력 컨트롤 시스템 |
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- 2016-07-29 MX MX2018001231A patent/MX2018001231A/es unknown
- 2016-07-29 EP EP16830878.1A patent/EP3330459B1/en active Active
- 2016-07-29 BR BR112018001888-0A patent/BR112018001888B1/pt active IP Right Grant
- 2016-07-29 US US15/509,519 patent/US10066405B2/en active Active
- 2016-07-29 WO PCT/KR2016/008331 patent/WO2017018845A1/ko not_active Ceased
- 2016-07-29 AU AU2016299573A patent/AU2016299573B2/en active Active
- 2016-07-29 ES ES16830878T patent/ES2835891T3/es active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119574318A (zh) * | 2024-12-03 | 2025-03-07 | 洛阳师范学院 | 基于卸载流量检测的预应力筋回缩损失检测方法及系统 |
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|---|---|
| US10844619B2 (en) | 2020-11-24 |
| BR112018001888B1 (pt) | 2022-07-05 |
| CN108350698A (zh) | 2018-07-31 |
| AU2016299573A1 (en) | 2018-03-22 |
| US10066405B2 (en) | 2018-09-04 |
| BR112018001888A2 (pt) | 2018-09-18 |
| US20180371769A1 (en) | 2018-12-27 |
| CN108350698B (zh) | 2020-08-18 |
| EP3330459A1 (en) | 2018-06-06 |
| US20170284111A1 (en) | 2017-10-05 |
| EP3330459B1 (en) | 2020-09-09 |
| CA3032280C (en) | 2021-06-08 |
| KR101643732B1 (ko) | 2016-07-28 |
| ES2835891T3 (es) | 2021-06-23 |
| AU2016299573B2 (en) | 2020-01-23 |
| CA3032280A1 (en) | 2017-02-02 |
| MX2018001231A (es) | 2019-07-15 |
| EP3330459A4 (en) | 2019-04-10 |
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