WO2021082513A1 - Procédé d'entretien de dispositif d'expansion modulaire à grand déplacement - Google Patents

Procédé d'entretien de dispositif d'expansion modulaire à grand déplacement Download PDF

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Publication number
WO2021082513A1
WO2021082513A1 PCT/CN2020/100543 CN2020100543W WO2021082513A1 WO 2021082513 A1 WO2021082513 A1 WO 2021082513A1 CN 2020100543 W CN2020100543 W CN 2020100543W WO 2021082513 A1 WO2021082513 A1 WO 2021082513A1
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WO
WIPO (PCT)
Prior art keywords
maintained
middle beam
telescopic device
short steel
modulus
Prior art date
Application number
PCT/CN2020/100543
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English (en)
Chinese (zh)
Inventor
郑敏霞
王庆雄
赵强
汤嵩
Original Assignee
南京毛勒工程材料有限公司
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.)
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Publication date
Application filed by 南京毛勒工程材料有限公司 filed Critical 南京毛勒工程材料有限公司
Publication of WO2021082513A1 publication Critical patent/WO2021082513A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/06—Arrangement, construction or bridging of expansion joints
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges

Definitions

  • the invention belongs to the technical field of bridge expansion devices, and in particular relates to a maintenance method for large displacement modulus expansion devices.
  • the bridge expansion device needs to meet the needs of the bridge's longitudinal, lateral, and vertical displacement and corners caused by temperature changes, hurricanes, vehicles, earthquakes and other conditions. It is a structural protection product that bears the largest dynamic load in the bridge structure. It must withstand varying values. Various complex dynamic loads or impacts; at the same time, it must be subjected to fatigue, abrasion, and various chemical and physical erosions. It is a very important shock-absorbing and isolating device to protect the bridge structure. Therefore, the scientific and reasonable maintenance of the large-displacement modular expansion device is beneficial to prolong the service life of the expansion device and maximize the value of the expansion device. However, in the past, there was no maintenance for the large-displacement modulus telescopic device, which shortened the life of the large-displacement modulus telescopic device and increased the cost.
  • the present invention provides a simple and convenient maintenance method for the large-displacement modulus telescopic device.
  • Step 1 Prepare lifting tools
  • Step 2 Connect the jacking tool to the middle beam to be maintained in the large displacement modular expansion device;
  • Step three implement jacking operation, push the middle beam to be maintained out of the large-displacement modulus telescopic device
  • Step 4 Maintain the ejected middle beam to be maintained
  • Step 5 After the maintenance is completed, the jacking tool is removed, and the ejected middle beam to be maintained automatically returns to the original position of the large displacement modulus telescopic device.
  • the jacking tool includes the following components: one or two jacks, a long steel beam, two short steel beams with through holes at both ends, four screws and a number of matching Nuts and four C-shaped steels with screw holes matched with the screw at one end.
  • the components are assembled as follows: the lower ends of the four C-shaped steels are buckled in the cavity of the middle beam, the upper ends are threadedly connected with the lower ends of the four screw rods, and the four screw rods pass through the four through holes of the two short steel beams. , Use nuts to fasten the screws on both sides of the through hole, place a jack on the middle beam, and place a long steel beam on the jack.
  • the long steel beam is located below the middle of the two short steel beams and is perpendicular to the short steel beam.
  • the lower ends of the four C-shaped steels are buckled in the cavities on both sides of the middle beam to be maintained, and the middle beam to be maintained is pulled out after being lifted. .
  • the lower ends of the four C-shaped steels are buckled in the cavity on the corresponding side of the middle beam on both sides of the middle beam to be maintained. Eject the middle beam to be maintained downward.
  • the present invention uses a combination of commonly used tools to realize the lifting of the middle beam to be maintained in the large-displacement modulus telescopic device and complete the maintenance, which greatly improves the life of the large-displacement modulus telescopic device and increases economic benefits.
  • the operating tools are simple, easy to operate, and efficient.
  • Fig. 1 is a schematic diagram of lifting up the intermediate beam to be maintained in the maintenance method of the present invention
  • Fig. 2 is a schematic diagram of pushing the middle beam to be maintained downward in the maintenance method of the present invention
  • Fig. 3 is a schematic diagram along line A-A in Fig. 2;
  • Figure 4 is a schematic diagram of the structure of a short steel beam
  • the present invention is a maintenance method for a large-displacement modular telescopic device, which is characterized in that it includes:
  • Step 1 Prepare lifting tools
  • Step 2 Connect the jacking tool to the middle beam 2 to be maintained in the large displacement modular expansion device;
  • Step 3 Carry out the lifting operation, and push the middle beam 2 to be maintained out of the large-displacement modular expansion device;
  • Step 4 Maintain the ejected middle beam 2 to be maintained
  • Step 5 After the maintenance is completed, the jacking tool is removed, and the ejected middle beam 2 to be maintained automatically returns to the original position of the large-displacement modular expansion device.
  • the jacking tool includes the following components: one or two jacks 1 (7), a long steel beam 6, two short steel beams 5 with through holes 11 at each end, four screw rods 3 and a number of matching screws
  • the components are assembled as follows: the lower ends of the four C-shaped steels are buckled in the cavity of the middle beam, and the upper ends are respectively screwed to the lower ends of the four screws 3, and the four screws 3 pass through the four through holes of the two short steel beams 5. 11.
  • Use nuts 4 to fasten the screws 3 on both sides of the through hole 11, place jack 1 (7) on the middle beam, and place the long steel beam 6 on the jack 1 (7).
  • the long steel beam 6 is located on the two short beams.
  • the middle part of the steel beam 5 is below and perpendicular to the short steel beam 5.
  • the types of the above-mentioned long steel beam 6 and short steel beam 5 are not particularly limited as long as the bearing capacity is sufficient.
  • the long steel beam 6 uses I-beam steel
  • the short steel beam 5 uses square steel.
  • the jack When the jack is one and it is located between the two short steel beams 5, the lower ends of the four C-shaped steels are buckled in the cavity on the corresponding side of the middle beam on both sides of the middle beam 2 to be maintained.
  • the middle beam 2 to be maintained is pushed out downward.
  • first assemble the jacking tool In the actual operation process, first assemble the jacking tool.
  • the two ultra-thin hydraulic jacks 1, 7 in the lifting tool assembly are placed on the middle beams on both sides of the middle beam 2 to be maintained, and each C-shaped steel is buckled in the cavity on both sides of the middle beam 2 to be maintained.
  • the hydraulic jacks 1, 7 are lifted, the long steel beam 6 is lifted, and the long steel beam 6 lifts the short steel beam 5 on it.
  • the short steel beam 5 realizes the intermediate beam to be maintained through the screw 3 and the nut 4 2 jacking.
  • the sliding spring 10 When the sliding spring 10 needs to be maintained, use an ultra-thin hydraulic jack 1 to place it on the middle beam 2 to be maintained, and buckle each C-shaped steel on the corresponding side of the other two middle beams on both sides of the middle beam 2 to be maintained
  • the long steel beam 6 is lifted by the ultra-thin hydraulic jack 1 after being lifted, but because the C-shaped steel is buckled on the two other middle beams, the fixing is firmer, so the long steel beam 6 transmits the lifting force To the short steel beam 5, the short steel beam 5 transfers the lifting force to the intermediate beam 2 to be maintained through the screw 3 and the nut 4, so that the intermediate beam 2 to be maintained is ejected downward.
  • the middle beam 2 to be maintained is pushed down from the large displacement modular telescopic device, take out the sliding spring 10 and replace it with a new one. After the completion, the jacking is released, and the maintained middle beam returns slowly and automatically. Bit.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

L'invention concerne un procédé d'entretien d'un dispositif d'expansion modulaire à grand déplacement. Des outils de levage sont reliés à une poutre intermédiaire (2) destinée à être entretenue pour lever la poutre intermédiaire (2) à des fins d'entretien. Une fois l'entretien terminé, les outils de levage sont retirés et la poutre intermédiaire (2) revient automatiquement sur la position d'origine. Les outils de levage comprennent des vérins (1, 7), une longue poutre en acier (6), une courte poutre en acier (5) ayant des trous traversants (11), quatre vis (3) et des écrous (4) adaptés aux vis, et un profilé en acier en forme de C dont une extrémité est pourvue de trous de vis adaptés aux vis (3). Le procédé ne nécessite pas le remplacement de la totalité du dispositif d'expansion, et le temps employé est court.
PCT/CN2020/100543 2019-11-01 2020-07-07 Procédé d'entretien de dispositif d'expansion modulaire à grand déplacement WO2021082513A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911058753.7A CN110804946A (zh) 2019-11-01 2019-11-01 一种大位移模数式伸缩装置维护保养方法
CN201911058753.7 2019-11-01

Publications (1)

Publication Number Publication Date
WO2021082513A1 true WO2021082513A1 (fr) 2021-05-06

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Application Number Title Priority Date Filing Date
PCT/CN2020/100543 WO2021082513A1 (fr) 2019-11-01 2020-07-07 Procédé d'entretien de dispositif d'expansion modulaire à grand déplacement

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CN (1) CN110804946A (fr)
WO (1) WO2021082513A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110804946A (zh) * 2019-11-01 2020-02-18 南京毛勒工程材料有限公司 一种大位移模数式伸缩装置维护保养方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039454A2 (fr) * 1980-05-03 1981-11-11 Kober AG Dispositif de pontage pour joints de dilatation dans des ponts ou analogues
CN2031811U (zh) * 1988-06-22 1989-02-01 上海市政工程设计院 大变形量模数式伸缩缝装置
CN2316335Y (zh) * 1997-06-24 1999-04-28 天津市公路管理局公路设施修造厂 桥梁伸缩缝装置
JP2000257013A (ja) * 1999-03-09 2000-09-19 Nippon Chuzo Kk 伸縮継手装置
JP2005350854A (ja) * 2004-06-08 2005-12-22 Kawaguchi Metal Industries Co Ltd 橋梁用ジョイント
JP2005350855A (ja) * 2004-06-08 2005-12-22 Kawaguchi Metal Industries Co Ltd 橋梁用ジョイント
JP2011052434A (ja) * 2009-09-01 2011-03-17 Ihi Infrastructure Systems Co Ltd 横桁取替方法
CN103911947A (zh) * 2014-04-01 2014-07-09 秦皇岛路桥建设开发有限公司 一种桥梁伸缩装置
CN104404871A (zh) * 2014-11-18 2015-03-11 刘金顶 桥梁伸缩缝处治方法
CN205857042U (zh) * 2016-06-28 2017-01-04 广州毛勒桥梁附件有限公司 一种大位移量桥梁伸缩装置的支撑垫块更换装置
CN208183525U (zh) * 2017-12-26 2018-12-04 王明明 一种液压复合式桥梁伸缩装置
CN110804946A (zh) * 2019-11-01 2020-02-18 南京毛勒工程材料有限公司 一种大位移模数式伸缩装置维护保养方法

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0039454A2 (fr) * 1980-05-03 1981-11-11 Kober AG Dispositif de pontage pour joints de dilatation dans des ponts ou analogues
CN2031811U (zh) * 1988-06-22 1989-02-01 上海市政工程设计院 大变形量模数式伸缩缝装置
CN2316335Y (zh) * 1997-06-24 1999-04-28 天津市公路管理局公路设施修造厂 桥梁伸缩缝装置
JP2000257013A (ja) * 1999-03-09 2000-09-19 Nippon Chuzo Kk 伸縮継手装置
JP2005350854A (ja) * 2004-06-08 2005-12-22 Kawaguchi Metal Industries Co Ltd 橋梁用ジョイント
JP2005350855A (ja) * 2004-06-08 2005-12-22 Kawaguchi Metal Industries Co Ltd 橋梁用ジョイント
JP2011052434A (ja) * 2009-09-01 2011-03-17 Ihi Infrastructure Systems Co Ltd 横桁取替方法
CN103911947A (zh) * 2014-04-01 2014-07-09 秦皇岛路桥建设开发有限公司 一种桥梁伸缩装置
CN104404871A (zh) * 2014-11-18 2015-03-11 刘金顶 桥梁伸缩缝处治方法
CN205857042U (zh) * 2016-06-28 2017-01-04 广州毛勒桥梁附件有限公司 一种大位移量桥梁伸缩装置的支撑垫块更换装置
CN208183525U (zh) * 2017-12-26 2018-12-04 王明明 一种液压复合式桥梁伸缩装置
CN110804946A (zh) * 2019-11-01 2020-02-18 南京毛勒工程材料有限公司 一种大位移模数式伸缩装置维护保养方法

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