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WO2023071660A1 - Dispositif de séparation de partie d'extrémité pour structure de fixation de pièce à tiges multiples et procédé de tensionnement - Google Patents

Dispositif de séparation de partie d'extrémité pour structure de fixation de pièce à tiges multiples et procédé de tensionnement Download PDF

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Publication number
WO2023071660A1
WO2023071660A1 PCT/CN2022/121367 CN2022121367W WO2023071660A1 WO 2023071660 A1 WO2023071660 A1 WO 2023071660A1 CN 2022121367 W CN2022121367 W CN 2022121367W WO 2023071660 A1 WO2023071660 A1 WO 2023071660A1
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WO
WIPO (PCT)
Prior art keywords
tension
separation device
tensioning
fixing structure
anchor rods
Prior art date
Application number
PCT/CN2022/121367
Other languages
English (en)
Chinese (zh)
Inventor
王冲
曹洲
罗疏
闵祥利
向阳
Original Assignee
中建三局第一建设工程有限责任公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中建三局第一建设工程有限责任公司 filed Critical 中建三局第一建设工程有限责任公司
Publication of WO2023071660A1 publication Critical patent/WO2023071660A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
    • E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

Definitions

  • the invention relates to the technical field of on-site construction equipment for anti-floating anchor rods, in particular to an end separation device and a tensioning method for a multi-bar fixing structure.
  • the anti-floating anchors are generally in the form of a combination, that is, multiple anchors are welded on Together as an anti-floating anchor, the free end of the anti-floating anchor needs to be bent and anchored to the base plate.
  • the construction process it is necessary to construct the waterproof and protective layer after the installation of the anchor rod is completed. If the anchor rod is bent and inserted into the anchor rod hole in advance, the bent anchor rod head will cross due to the long anchorage length, and the distance between the anchor rods will be relatively close, which will make subsequent waterproofing and protective layer construction very difficult.
  • the backbending method is required for construction, and the steel bar bending machine can be used to bend the anchor rod.
  • the present application proposes an end separation device and a tensioning method for a multi-bar fixed structure, which solves the problem caused by manually breaking apart the parts of the free ends of multiple anchor bars.
  • the end separation device for a multi-bar fixing structure of the present invention has a fixed end where a plurality of anchor rods are fixed together and a free end where a plurality of anchor rods are closed together, and the end separation device includes: The tension member is connected to the free end; the driving member is connected to the tension member; wherein, the driving member can drive the tension member to move so as to separate the parts of the plurality of anchor rods at the free end.
  • the free end includes a plurality of tension ends
  • the tension member includes a plurality of tension ropes
  • one end of the plurality of tension ropes is connected to a plurality of tensioned ends in a plurality of tension ends in one-to-one correspondence. on the tension end.
  • the driver can apply tension to multiple tension ropes at the same time, and multiple tension ropes can simultaneously tension multiple tension ends to be tensioned, thereby improving the working efficiency of the end separation device , thereby improving the field operation efficiency of the anti-floating anchor rod.
  • the driver includes one or more tensioners.
  • the wire tensioner is easy to operate and can be operated by only one person, thereby reducing the cost of on-site construction operations.
  • the other ends of the multiple tension ropes are connected to the multiple wire tensioners in a one-to-one correspondence.
  • a plurality of wire tensioners can simultaneously tension a plurality of tension ropes to stretch apart a plurality of tension ends to be tensioned, thereby improving the tension efficiency of the end separation device.
  • the end separation device when there is one wire tensioner, there are two tension ropes, and the end separation device also includes a guide beam, and the two tension ropes are respectively wound around the two ends of the guide beam, so that the wire tensioner can Simultaneously stretch the two tensioning ropes.
  • the guide beam has a guiding function, which can ensure that the wire tensioner applies tension to the two tension ropes at the same time, so that the two tension ropes tension the two tension ends in opposite directions. In this way, it is ensured that the parts of the two anchor rods at the free ends are separated, so that the subsequent reinforcement bending machine can enter the site to bend the separated part, thereby meeting the on-site construction requirements of the anti-floating anchor rods.
  • the end separation device further includes a pulley assembly, the pulley assembly is arranged on at least one of the two ends of the guide beam, and the tension rope is wound around at least one end through the pulley assembly.
  • setting the pulley assembly can avoid direct contact between the tension rope and the guide beam, and reduce the friction force on the tension rope through rolling friction, thereby reducing the wear on the tension rope and improving the tension of the tensioner. tight line efficiency.
  • the thread tensioner is a double-hook thread tensioner.
  • the double-hook wire tensioner can apply tension to the two tension ropes at the same time, so that the two tension ropes simultaneously tension the two tension ends. In this way, it is ensured that the parts of the two anchor rods at the free ends are separated, so that the subsequent reinforcement bending machine can enter the site to bend the separated part, thereby meeting the on-site construction requirements of the anti-floating anchor rods.
  • a support seat assembly is also included, and the support seat assembly is connected with the guide beam for supporting the guide beam.
  • the guide beam has a guiding function, which can ensure that the wire tensioner applies tension to the two tension ropes at the same time, so that the two tension ropes tension the two tension ends in opposite directions. In this way, it is ensured that the parts of the two anchor rods at the free ends are separated, so that the subsequent reinforcement bending machine can enter the site to bend the separated part, thereby meeting the on-site construction requirements of the anti-floating anchor rods.
  • the support base assembly includes: a column, one end of which is connected to the guide beam; a base, connected to the other end of the column.
  • the support seat assembly can fix and support the guide beam, so as to ensure that the guide beam can guide the tension rope accurately, and the double hook wire tensioner can work normally. Therefore, it is ensured that the end separation device can separate the parts of the plurality of anchor rods located at the free ends.
  • the present invention also provides a tensioning method, which adopts the above-mentioned end separation device for tensioning, including: Step 1, connecting the tensioning member with the free end of the multi-bar fixing structure; Step 2, operating and driving until the parts at the free ends of the plurality of anchor rods are opened and separated.
  • the end separation device and tensioning method for multi-bar fixed structure provided by the present invention has at least the following beneficial effects:
  • the driving member separates the part located at the free end in a tensioning manner by driving the tensioning member. In this way, it is not necessary to break apart the parts of the anchor rods at the free ends by manual hard breaking as in the related art.
  • the high labor cost caused by adopting this separation method and the problems that the broken parts of multiple anchor rods are easy to rebound are avoided. This reduces the cost and risk of on-site construction operations, and at the same time ensures that the subsequent steel bar bending machine can smoothly extend and bend the parts at the free ends of multiple anchor rods to meet the on-site construction operations of anti-floating anchor rods. Require.
  • Fig. 1 has shown the end separation device structure schematic diagram (showing the assembly relationship of anti-floating anchor rod and end separation device structure) for multi-bar fixed structure of the present invention
  • Figure 2 shows a schematic diagram of the connection relationship between the guide beam and the support seat assembly in Figure 1;
  • Figure 3 shows another angled view of the base in Figure 1;
  • Fig. 4 has shown the schematic diagram of the connection relationship of the guide beam, the pulley assembly and the support seat assembly in Fig. 1;
  • Fig. 5 has shown the method flowchart of stretching method of the present invention
  • Fig. 6 shows a method flow chart of the construction method of the present invention.
  • Tension parts 11. Tension ropes; 20. Driving parts; 21. Tensioners; 30. Guide beams; 40. Support seat components; 41. Columns; 42. Bases; 50. Pulley components; 100. Anchor Rod; 101, fixed end; 102, free end; 1021, tension end.
  • the multi-bar fixing structure in the present application is an anti-floating anchor bar, which is fixed together by welding a plurality of anchor bars 100 .
  • the anti-floating anchor rod has a fixed end 101 where a plurality of anchor rods 100 are welded and fixed together, and a free end 102 where a plurality of anchor rods 100 are folded together.
  • the end separation device in the present application is not limited to be used for anti-floating anchors, and can also be applied to other multi-member fixing structures, such as a multi-member fixing structure in which multiple members are fixed by binding.
  • the present application has developed an end separation device of a multi-bar fixing structure.
  • the separation device reduces the work intensity of the workers, and the separation operation can be completed simply by shaking the wire tensioner, and the anchor rod 100 is easy to maintain stability after separation, reducing the risk of the anchor rod 100 rebounding.
  • the separation device has the characteristics of simple structure, convenient processing and simple use method, which meets the needs of actual production on site.
  • the present invention provides an end separation device for a multi-bar fixing structure
  • the multi-bar fixing structure has a fixed end 101 with a plurality of anchor rods 100 fixed together and a plurality of anchors
  • the free ends 102 of the rods 100 are closed together
  • the end separation device includes a tension member 10 and a driving member 20 .
  • the tension member 10 is connected to the free end 102 .
  • the drive element 20 is connected to the tension element 10 .
  • the driving member 20 can drive the tension member 10 to separate the parts of the plurality of anchor rods 100 located at the free ends 102 .
  • the driving member 20 separates the part located at the free end 102 in a tensioning manner by driving the tensioning member 10 .
  • the driving member 20 avoids the high labor cost caused by adopting this separation method, and the problems that the broken parts of multiple anchor rods 100 are easy to rebound.
  • the subsequent steel bar bending machine can smoothly extend and bend the parts of the multiple anchor rods 100 located at the free ends 102 to meet the requirements of the anti-floating anchor rods.
  • the free end 102 includes a plurality of tension ends 1021
  • the tension member 10 includes a plurality of tension ropes 11, and one end of the tension ropes 11 corresponds to each other one by one. It is connected to a plurality of tension ends 1021 to be stretched among the plurality of tension ends 1021 .
  • the driver 20 can simultaneously apply tension to multiple tension ropes 11, and the multiple tension ropes 11 can simultaneously tension multiple tension ends 1021 to be tensioned, thereby improving the performance of the end separation device.
  • the working efficiency of the anti-floating bolt is improved, and the field operation efficiency of the anti-floating bolt is improved.
  • the free end 102 includes two tension ends 1021
  • the tension member 10 includes two tension ropes 11, and one end of the two tension ropes 11 corresponds to each other.
  • the sleeve is connected to the two tension ends 1021 .
  • the driving member 20 includes a wire tensioner 21 .
  • the end separation device also includes a guide beam 30, and the two tensioning ropes 11 are respectively wound around the left and right ends of the guide beam 30 , so that the wire tensioner 21 can simultaneously tension two tensioning ropes 11.
  • the guiding beam 30 has a guiding function, which can ensure that the tensioner 21 applies tension to the two tensioning ropes 11 at the same time, so that the two tensioning ropes 11 stretch the two tensioning ends 1021 in opposite directions. Therefore, it is ensured that the parts of the two anchor rods 100 at the free ends 102 are separated, so that the subsequent reinforcement bending machine enters the site to bend the separated parts, thereby meeting the on-site construction requirements of the anti-floating anchor rods.
  • the thread tensioner 21 is a double-hook thread tensioner.
  • the driving member 20 includes a plurality of wire tighteners 21.
  • the wire tensioners 21 are connected, that is, each wire tensioner 21 is individually connected to a tensioning rope 11, and tensions a tensioning end 1021 to be tensioned.
  • a plurality of tensioners 21 tension a plurality of tension ends 1021 to be tensioned in one-to-one correspondence, so as to realize the partial separation of the plurality of anchor rods 100 at the free ends 102 .
  • the end separation device further includes a pulley assembly 50, the pulley assembly 50 is arranged on the two ends of the guide beam 30, and the two tension ropes 11 pass through respective pulley assemblies
  • the member 50 is wound around two ends of the guiding beam 30 .
  • setting the pulley assembly 50 can avoid the direct contact between the tension rope 11 and the guide beam 30, and reduce the friction force on the tension rope 11 by means of rolling friction, thereby reducing the wear on the tension rope 11 and improving the performance of the tension rope 11.
  • the tightening efficiency of the thread tightener 21 is ensured.
  • the pulley assembly 50 includes a fixed pulley.
  • the pulley assembly 50 may include a plurality of fixed pulleys or a combination of fixed pulleys and movable pulleys.
  • the tension rope 11 is a steel wire rope.
  • the guide beam 30 is shaped steel, such as a rectangular square tube.
  • the double-hook wire tensioner is arranged at the middle position at the bottom of the guide beam 30 .
  • the end separation device further includes a support seat assembly 40 connected to the guide beam 30 for supporting the guide beam 30 .
  • the support seat assembly 40 can fix and support the guide beam 30, so as to ensure that the guide beam 30 can guide the tension rope 11 accurately, and the double hook wire tensioner can work normally. Therefore, it is ensured that the end separating device can separate the parts of the plurality of anchor rods 100 located at the free ends 102 .
  • the support seat assembly 40 includes a column 41 and a base 42 .
  • one end of the column 41 is connected with the guide beam 30 ; the base 42 is connected with the other end of the column 41 .
  • the height of the column 41 can be set according to the height of the free end 102 to ensure that the end separation device is connected to the free end 102 correctly.
  • the base 42 has a supporting function, which can ensure that other components arranged on it will not be overturned or toppled during operation, thereby ensuring that the end separation device can work normally.
  • the base 42 is a cross, which can be welded by three shaped steels, such as rectangular square tubes.
  • the column 41 is shaped steel, such as a rectangular square tube.
  • the end separation device provided in the present application can reduce the difficulty of operation in the process of separating multiple bolts, reduce the risk of bolt springback, and achieve the purpose of saving costs.
  • the end separation device adopts a rectangular square tube as its supporting rod (the guide beam 30). Fixed pulleys are fixed at both ends of the rectangular square tube, and a steel wire rope is wound on the fixed pulley.
  • the wire device can be used to bear the pulling force of the anchor rod separation.
  • the wire tensioner can reduce the working intensity of the workers.
  • the two ends of the wire rope are balanced by the fixed pulley to prevent the two anchor rods from being separated asymmetrically. After separation, the double hooks are tightened. The tightening of the threader can maintain the opening degree of the anchor rod and prevent it from rebounding, which improves safety and reduces potential safety hazards.
  • the end separation device is mainly composed of 5 rectangular square tubes of 100mm ⁇ 100mm ⁇ 2.5mm welded together, plus two fixed pulleys fixed at both ends of the support rod, and a double hook tightening wire fixed in the middle of the support rod. It consists of a device and two steel wire ropes wound around a fixed pulley.
  • the present application also provides a tensioning method, using the above-mentioned end separation device for tensioning, including the following steps:
  • Step 1 connecting the tension member with the free end of the multi-bar fixed structure
  • Step 2 operating the driving member until the parts of the anchor rods located at the free ends are opened and separated.
  • this application also provides a kind of construction method, and construction method comprises the following steps:
  • Step 1 the calculation of the pressure bearing of the rectangular square tube, the tension of the wire rope and the design of the end separation device
  • Step 2 production and processing of the end separation device
  • Step 3 the installation of the end separation device (the installation of the wire tensioner and the insertion of the wire rope);
  • Step 4 the end separation device performs tension separation operation against the floating anchor rod
  • Step five the steel bar bending machine bends the anti-floating anchor rod
  • Step 6 remove the tension force, and proceed to the separation of the next anti-floating anchor rod.
  • shape specification, tensioning method and construction method of the end separation device are optimized shape specifications or methods, and the shape specification, quantity, weld form, steel wire rope and fixed pulley quantity of the section steel in the end separation device Changes in specifications and method sequences in this application all belong to the protection scope of the present invention.
  • the multi-member fixed structure can be set as three planted bars (reinforcing bars), the length of the three planted bars is 6m, and the middle part is spot welded to form a whole bundle. After the definition is expanded, multiple bars can be locally fixed as one. The other end needs to be separated from the structure.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

Dispositif de séparation de partie d'extrémité pour une structure de fixation de pièce à tiges multiples et procédé de tensionnement. Le dispositif de séparation de partie d'extrémité comprend : une pièce de tensionnement (10) reliée à une extrémité libre (102) ; et une pièce d'entraînement (20) reliée à la pièce de tensionnement (10), la pièce d'entraînement (20) pouvant amener la pièce de tensionnement (10) à agir de manière à séparer les parties, se trouvant au niveau de l'extrémité libre (102), d'une pluralité de tiges d'ancrage (100). Selon le dispositif de séparation et le procédé de tensionnement, la pièce d'entraînement (20) amène la pièce de tensionnement (10) à séparer, par mise en tension, les parties se trouvant au niveau de l'extrémité libre (102). De cette manière, les parties, se trouvant au niveau de l'extrémité libre (102), de la pluralité de tiges d'ancrage (100) n'ont pas besoin d'être rompues manuellement et de force, de telle sorte que les problèmes selon lesquels les coûts de main-d'œuvre sont élevés et des parties brisées de la pluralité de tiges d'ancrage (100) sont susceptibles de rebondir sont résolus, ce qui permet de réduire les coûts et le risque d'opération de construction sur site, et également de garantir qu'une machine de cintrage de barre d'acier de suivi peut plier les parties, se trouvant au niveau de l'extrémité libre (102), de la pluralité de tiges d'ancrage (100) de façon à satisfaire aux exigences d'opération de construction sur site de tiges d'ancrage anti-flottement.
PCT/CN2022/121367 2021-10-26 2022-09-26 Dispositif de séparation de partie d'extrémité pour structure de fixation de pièce à tiges multiples et procédé de tensionnement WO2023071660A1 (fr)

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CN202111250940.2A CN113882373B (zh) 2021-10-26 2021-10-26 一种用于多杆件固定结构的端部分离装置和张拉方法
CN202111250940.2 2021-10-26

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CN113882373B (zh) * 2021-10-26 2022-12-09 中建三局第一建设(四川)有限责任公司 一种用于多杆件固定结构的端部分离装置和张拉方法

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JP2003090040A (ja) * 2001-09-17 2003-03-28 Yoshida Kouzou Design:Kk アンカー引張材及びアンカーの構築方法
CN201482836U (zh) * 2009-08-10 2010-05-26 湖北中建三局建筑工程技术有限责任公司 抗浮锚杆折弯设备及其系统
CN203003007U (zh) * 2012-12-19 2013-06-19 中国建筑第八工程局有限公司 抗浮锚杆钢筋弯曲机
CN203530974U (zh) * 2013-10-21 2014-04-09 中国建筑第四工程局有限公司 一种抗浮锚杆
CN204220849U (zh) * 2014-11-11 2015-03-25 中建八局第一建设有限公司 一种锚杆弯曲机
CN206028572U (zh) * 2016-09-20 2017-03-22 山东金城建设有限公司 抗浮锚杆原位弯折装置
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CN111501853A (zh) * 2020-04-15 2020-08-07 中国一冶集团有限公司 一种土层抗浮锚杆结构及施工方法
CN113882373A (zh) * 2021-10-26 2022-01-04 中建三局第一建设工程有限责任公司 一种用于多杆件固定结构的端部分离装置和张拉方法

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