CN104963293B - Prefabricated subsection beam lay-by is put more energy into and is supportted bellows slurry anchor Bar Anchorage method - Google Patents

Prefabricated subsection beam lay-by is put more energy into and is supportted bellows slurry anchor Bar Anchorage method Download PDF

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Publication number
CN104963293B
CN104963293B CN201510433090.8A CN201510433090A CN104963293B CN 104963293 B CN104963293 B CN 104963293B CN 201510433090 A CN201510433090 A CN 201510433090A CN 104963293 B CN104963293 B CN 104963293B
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bellows
energy
support
lay
anchor bar
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CN104963293A (en
Inventor
葛斌斌
曾鸣
谭坤
周玲敏
周安龙
刘文广
刘继仁
宓浩
叶孔晟
张瑞诚
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China Railway 11th Bureau Group Bridge Co Ltd
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China Railway 11th Bureau Group Bridge Co Ltd
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Abstract

The invention provides a kind of prefabricated subsection beam lay-by support bellows slurry anchor Bar Anchorage method of putting more energy into, pre-buried bellows in the prefabricated process of beam sections, inserts anchor bar in bellows after the beam sections demoulding, the anchoring after-pouring that the is in the milk support of putting more energy into. The present invention is applied to Bar Anchorage method in bridge prefabrication engineering special construction, without changing original production technology and template, in continuous flow procedure, only need pre-buried bellows, when later stage is put more energy into support construction, technique is simple, use nothing to shrink high strength grout anchoring property reliable, under the prerequisite that ensures construction quality, accelerated to greatest extent construction speed.

Description

Prefabricated subsection beam lay-by is put more energy into and is supportted bellows slurry anchor Bar Anchorage method
Technical field
The present invention relates to reinforced concrete prefabricated structure reinforcing bars anchorage technology field, relate in particular to a kind of prefabricated subsection beam lay-by support bellows slurry anchor Bar Anchorage method of putting more energy into.
Background technology
The application of precast concrete segment beam technology in science of bridge building is very extensive, and it is ripe that short-term and long collimation method prefabricated subsection beam process are also tending towards. The arm support structure of putting more energy into is chosen in the setting of beam sections lay-by, makes beam sections in Urban Bridge engineering, have the selection of more planning space and structural design. The support of putting more energy into roughly has 3 kinds of modes with the anchor connection of beam sections: embedded sleeve barrel is connected anchoring; Steel, mixed combination anchor and bar planting anchoring. But these anchorage styles cannot meet the continuous production of beam sections when element precast in the support of putting more energy into, at the bottom of the prefabricated construction feasibility of privileged sites, large to the loss of template, quality control difficulty is very big. Pre-buried oblique sleeve location difficulty and angle can not be adjusted; Steel, mixed combination anchor require high and interface anchoring difficulty to steel, welding and corrosion-resistant; After bar planting anchoring boring difficulty and reinforcing bar insert, the short time cannot adjust to the right place in colligation.
Summary of the invention
Object of the present invention is exactly a kind of method that bellows entoplasm anchor Bar Anchorage is provided for the construction of privileged sites in bridge prefabrication engineering. This technology has in the lay-by prefabricated anchoring of the support application of putting more energy into that constructing operation is simple, anchoring property reliable, can ensure the advantages such as prefabricated continuous production without repacking model.
Object of the present invention can realize by following scheme: a kind of prefabricated subsection beam lay-by is put more energy into and supportted bellows slurry anchor Bar Anchorage method, and its concrete technology step is as follows:
In step 1, beam sections reinforcing bar binding process, at every put more energy into the support pre-buried bellows in anchor bar position and grouting escape pipe. Bellows length should meet design anchorage length of steel bar, and bellows diameter should meet the space requirement of anchor bar slurry anchor, and pre-buried grouting escape pipe need support the use with bellows, and bellows utilizes network for location location, and shutoff is carried out at bellows two ends, prevents into slurry;
Step 2, beam sections bale handle, to putting more energy into after support construction area, cut web outside corrugated pipe orifice concrete, and clear up bellows inwall;
Step 3, the support anchor bar of putting more energy into penetrate in bellows, after arrival design attitude, shown in colligation drawing, put more energy into support stirrup and lay-by floorings reinforcing bar;
Step 4, the support and after the whole colligations of lay-by floorings reinforcing bar fixedly complete of putting more energy into, carry out shutoff by the bellows mouth of pipe that penetrates anchor bar, in shutoff process, pulp-inlet pipe is installed, and pulp-inlet pipe need be installed firmly seamless;
Step 5, press design mixture proportion stir grouting material, grouting material stir carry out in strict accordance with arrangement and method for construction, fluidity need meet design requirement;
Step 6, utilize pneumatic mortar machine to being in the milk in bellows, pneumatic mortar machine pressure is controlled in designing requirement, and slurry fills after pipeline and holds and press 10s, confirms pulp concentration and enters to starch concentration when consistent, seals pressurize;
Step 7, slurry reach put more energy into after design strength support and lay-by floorings formwork erection, build.
The beneficial effect that adopts technique scheme to produce is: the present invention is applied to Bar Anchorage method in bridge prefabrication engineering special construction, without changing original production technology and template, in continuous flow procedure, only need pre-buried bellows, when later stage is put more energy into support construction, technique is simple, use nothing to shrink high strength grout anchoring property reliable, under the prerequisite that ensures construction quality, accelerated to greatest extent construction speed.

Claims (1)

1.A kind ofPrefabricated subsection beam lay-by is put more energy into and is supportted bellows slurry anchor Bar Anchorage method, and its concrete technology step is as follows:
In step 1, beam sections reinforcing bar binding process, at every put more energy into the support pre-buried bellows in anchor bar position and grouting escape pipe, bellows length should meet design anchorage length of steel bar, bellows diameter should meet the space requirement of anchor bar slurry anchor, pre-buried grouting escape pipe need support the use with bellows, bellows utilizes network for location location, and shutoff is carried out at bellows two ends, prevents into slurry;
Step 2, beam sections bale handle, to putting more energy into after support construction area, cut web outside corrugated pipe orifice concrete, and clear up bellows inwall;
Step 3, the support anchor bar of putting more energy into penetrate in bellows, after arrival design attitude, shown in colligation drawing, put more energy into support stirrup and lay-by floorings reinforcing bar;
Step 4, the support and after the whole colligations of lay-by floorings reinforcing bar fixedly complete of putting more energy into, carry out shutoff by the bellows mouth of pipe that penetrates anchor bar, in shutoff process, pulp-inlet pipe is installed, and pulp-inlet pipe need be installed firmly seamless;
Step 5, press design mixture proportion stir grouting material, grouting material stir carry out in strict accordance with arrangement and method for construction, fluidity need meet design requirement;
Step 6, utilize pneumatic mortar machine to being in the milk in bellows, pneumatic mortar machine pressure is controlled in designing requirement, and slurry fills after pipeline and holds and press 10s, confirms pulp concentration and enters to starch concentration when consistent, seals pressurize;
Step 7, slurry reach put more energy into after design strength support and lay-by floorings formwork erection, build.
CN201510433090.8A 2015-07-22 2015-07-22 Prefabricated subsection beam lay-by is put more energy into and is supportted bellows slurry anchor Bar Anchorage method Active CN104963293B (en)

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Publication number Priority date Publication date Assignee Title
CN108571121B (en) * 2018-05-16 2020-07-17 广西大学 Method for determining design value of anchoring length of deformed reinforcing steel bar in concrete

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006125011A (en) * 2004-10-28 2006-05-18 Railway Technical Res Inst Steel-pipe-column joint element, and construction method for beam section of viaduct using it
KR100782523B1 (en) * 2006-09-12 2007-12-06 현대건설주식회사 Prestressed concrete box girder bridge having struts
CN201132929Y (en) * 2007-11-26 2008-10-15 中铁大桥勘测设计院有限公司 Prestressed concrete continuous beam of box section of large- cantilever arc flange plate
CN102787560A (en) * 2012-08-24 2012-11-21 杭州市市政工程集团有限公司 Integrated construction method of support of large cantilevered capping beam and vertical column
CN103276662A (en) * 2013-05-13 2013-09-04 中交第二航务工程局有限公司 Large-cantilever steel web spinal box beam segment and construction technology
CN103741582A (en) * 2013-12-30 2014-04-23 郑州大学 Corrugated steel web polycarbonate (PC) combination box beam and construction method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006125011A (en) * 2004-10-28 2006-05-18 Railway Technical Res Inst Steel-pipe-column joint element, and construction method for beam section of viaduct using it
KR100782523B1 (en) * 2006-09-12 2007-12-06 현대건설주식회사 Prestressed concrete box girder bridge having struts
CN201132929Y (en) * 2007-11-26 2008-10-15 中铁大桥勘测设计院有限公司 Prestressed concrete continuous beam of box section of large- cantilever arc flange plate
CN102787560A (en) * 2012-08-24 2012-11-21 杭州市市政工程集团有限公司 Integrated construction method of support of large cantilevered capping beam and vertical column
CN103276662A (en) * 2013-05-13 2013-09-04 中交第二航务工程局有限公司 Large-cantilever steel web spinal box beam segment and construction technology
CN103741582A (en) * 2013-12-30 2014-04-23 郑州大学 Corrugated steel web polycarbonate (PC) combination box beam and construction method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
体外预应力梁在上海长江大桥施工中的应用;许树壮、黄虹;《中国市政工程》;20071130(第S2期);第79-81页 *

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