CN108708265A - A kind of steel camber arch bridge construction method - Google Patents

A kind of steel camber arch bridge construction method Download PDF

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Publication number
CN108708265A
CN108708265A CN201810555228.5A CN201810555228A CN108708265A CN 108708265 A CN108708265 A CN 108708265A CN 201810555228 A CN201810555228 A CN 201810555228A CN 108708265 A CN108708265 A CN 108708265A
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CN
China
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construction
arch
steel
bridge
concrete
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CN201810555228.5A
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Chinese (zh)
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CN108708265B (en
Inventor
沈垚
贺凡
朱杰
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武汉精潮钢结构有限公司
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Priority to CN201810555228.5A priority Critical patent/CN108708265B/en
Publication of CN108708265A publication Critical patent/CN108708265A/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D4/00Arch-type bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

The invention discloses a kind of steel camber arch bridge construction method of technical field of bridge construction, which is as follows:S1:Foundation pile construction:Trestle and platform construction;S2:Main arch is constructed:Arch springing section pre-buried steel Arch rib positioning steel member is installed;S3:Vault support installation:Closure section steel pipe is installed, welded still pipe after line style is adjusted;S4:Pier column is installed:The lower pipe concrete of symmetrical pumping;S5:Bridge floor rack construction:From main arch and subarch both ends span centre floorings are symmetrically installed to by upstream and downstream along bridge;S6:Surfacing Construction:Symmetrical construction deck paving appurtenant work, it replicates suspender force and adjusts to design value, the spray painting application of steel pipe protection face, after the completion of construction, field test is simultaneously checked and accepted, the present invention is in strict accordance with arrangement and method for construction and construction detailed rules and regulations construction, it can be ensured that stress and deformation in arch erection are controlled, and are ensured in arch bridge across the high-precision closure of span centre.

Description

A kind of steel camber arch bridge construction method

Technical field

The invention discloses a kind of steel camber arch bridge construction methods, specially technical field of bridge construction.

Background technology

Arch bridge is used as a kind of bridge of main supporting member in perpendicular using arch, and arch bridge has across distance Far, space availability ratio is high, saves the feature of material and shape grace.Arch is the key component in rack construction, cast-in-place coagulation It needs to build arch when native arch bridge to be used for supporting all or part of arch ring and upper part weight.But existing arch bridge is applied During work, due to the limitation of its orographic condition of constructing, the difficulty of construction of arch bridge is big, long construction period, the main span arch knot of arch bridge Structure zero stress joins the two sections of a bridge, etc, and difficulty is big and closure precision is not high, and there are errors, influence the use of arch bridge.For this purpose, we have proposed one kind Steel camber arch bridge construction method comes into operation, to solve the above problems.

Invention content

The purpose of the present invention is to provide a kind of steel camber arch bridge construction methods, to solve mentioned above in the background art ask Topic.

To achieve the above object, the present invention provides the following technical solutions:A kind of steel camber arch bridge construction method, the construction method It is as follows:

S1:Foundation pile construction:Trestle and platform construction;

Basis and pier stud construction;

5#, 6#, 7# pier capping beam holder are set up, the construction of 5#, 6#, 7# pier capping beam waits for that concrete bullet mould and intensity reach design After value, tensioning bent cap prestressed strand;

S2:Main arch is constructed:Arch springing section pre-buried steel Arch rib positioning steel member is installed, reinforcing bar after-pouring arch springing coagulation has been bound Soil;

Construction main arch bracket basis sets up holder, and precompressed, adjustment holder and template;

The segments main arch 1# and the segments subarch 4# are installed on holder, and major arch rib 2#~5# sections are sequentially installed on holder Section and the segments subarch 2#~3#, corresponding connector is welded after arch rib line style is adjusted in each segment steel pipe, stull;

S3:Vault support installation:Closure section steel pipe is installed, adjusts welded still pipe after line style, and carry out arch springing concrete Construction;

Erecting and welding vault supports, and observation mark is carried out on arch rib, and observation is carried out in each stage of construction;

S4:Pier column is installed:The symmetrical lower pipe concrete of pumping waits for that down tube concrete layer intensity, bullet mould reach design value It is symmetrical that upper tube inner concrete is perfused and after age concrete phase is more than four days;

After pipe inner concrete reaches design strength and age concrete phase is more than four days, transverse girder between arch rib is removed, is installed on arch Column and intercostal crossbeam;

Pier column and intercostal crossbeam upper bracket are installed, bridge pier and column upper beam are installed, main arch span centre is subsequently mounted and hangs Bar and span centre suspender crossbeam;

S5:Bridge floor rack construction:From main arch and subarch both ends span centre floorings are symmetrically installed to by upstream and downstream along bridge;

It is symmetrical to pour the contact of bridge panel longitudinal wet and laterally wet contact, with post-stretching suspender force;

S6:Surfacing Construction:Symmetrical construction deck paving appurtenant work replicates suspender force and adjusts to design value, The spray painting application of steel pipe protection face, after the completion of construction, field test is simultaneously checked and accepted.

It preferably,, should be according to design drawing when installing arch springing section pre-buried steel Arch rib positioning steel member in the step S2 Pre- picture mosaic and peg figure are drawn, rod piece number and quantity is checked, spike dowel length areas, lifting center of gravity position is marked on basic rod piece It sets and unit weight and installation direction.

Preferably, in the step S2, holder is contacted with arch rib steel pipe using face, avoids arch rib steel pipe partial from generating excessive Concentrated stress.

Preferably, in the step S3, when vault support is installed, it should ensure that the antidumping in steel girder cantilever erection process is steady Determine coefficient, counterweight balance is carried out with ballast or girder steel dead weight, meets Middle span closing maximum cantilever installation requirements, and spelled on holder When the longeron of the segments steel loading beam 1#, it is necessary to which in the cantilever end of longeron, interim fulcrum is set.

Preferably, in the step S5, during tensioning suspender force, tensioning fulcrum is hung pretensioning span centre sunpender again Bar, sunpender sunpender, span centre both sides and the symmetrical tensioning of bridge floor on the outside of tensioning again on the inside of pretensioning.

Compared with prior art, the beneficial effects of the invention are as follows:The present invention is applied in strict accordance with arrangement and method for construction and construction detailed rules and regulations Work, it can be ensured that stress and deformation in arch erection are controlled, and are ensured in arch bridge across the high-precision closure of span centre.

Description of the drawings

Fig. 1 is foundation pile construction structural schematic diagram of the present invention;

Fig. 2 is main arch constructing structure schematic diagram of the present invention;

Fig. 3 is that vault of the present invention supports mounting structure schematic diagram;

Fig. 4 is pier column mounting structure schematic diagram of the present invention;

Fig. 5 is bridge floor rack construction structural schematic diagram of the present invention;

Fig. 6 is Surfacing Construction structural schematic diagram of the present invention.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

The present invention provides a kind of technical solution:A kind of steel camber arch bridge construction method, the construction method are as follows: S1:Foundation pile construction:Trestle and platform construction;

Basis and pier stud construction;

5#, 6#, 7# pier capping beam holder are set up, the construction of 5#, 6#, 7# pier capping beam waits for that concrete bullet mould and intensity reach design After value, tensioning bent cap prestressed strand, (please referring to Fig.1);

S2:Main arch is constructed:Arch springing section pre-buried steel Arch rib positioning steel member is installed, reinforcing bar after-pouring arch springing coagulation has been bound Soil should draw pre- picture mosaic and peg figure according to design drawing, check bar when installing arch springing section pre-buried steel Arch rib positioning steel member Part is numbered and quantity, and spike dowel length areas, lifting center of gravity position and unit weight and installation direction are marked on basic rod piece;

Construction main arch bracket basis sets up holder, and precompressed, adjustment holder and template, holder use face with arch rib steel pipe Contact, avoids arch rib steel pipe partial from generating excessive concentrated stress;

The segments main arch 1# and the segments subarch 4# are installed on holder, and major arch rib 2#~5# sections are sequentially installed on holder Section and the segments subarch 2#~3#, corresponding connector (please referring to Fig. 2) is welded after arch rib line style is adjusted in each segment steel pipe, stull;

S3:Vault support installation:Closure section steel pipe is installed, adjusts welded still pipe after line style, and carry out arch springing concrete Construction, when vault support installation, should ensure that the anti-coccidia index in steel girder cantilever erection process, with ballast or girder steel from Counterweight balance is carried out again, meets Middle span closing maximum cantilever installation requirements, and in the longeron of the assembly segments girder steel 1# on holder, Must interim fulcrum be set in the cantilever end of longeron;

Erecting and welding vault supports, and observation mark is carried out on arch rib, and carrying out observation in each stage of construction (please refers to Fig. 3);

S4:Pier column is installed:The symmetrical lower pipe concrete of pumping waits for that down tube concrete layer intensity, bullet mould reach design value It is symmetrical that upper tube inner concrete is perfused and after age concrete phase is more than four days;

After pipe inner concrete reaches design strength and age concrete phase is more than four days, transverse girder between arch rib is removed, is installed on arch Column and intercostal crossbeam;

Pier column and intercostal crossbeam upper bracket are installed, bridge pier and column upper beam are installed, main arch span centre is subsequently mounted and hangs Bar and span centre suspender crossbeam (please referring to Fig. 4);

S5:Bridge floor rack construction:From main arch and subarch both ends span centre floorings are symmetrically installed to by upstream and downstream along bridge;

It is symmetrical to pour the contact of bridge panel longitudinal wet and laterally wet contact, with post-stretching suspender force, in tensioning sunpender During Suo Li, pretensioning span centre sunpender tensioning fulcrum sunpender again, sunpender sunpender on the outside of tensioning again, span centre two on the inside of pretensioning Side and the symmetrical tensioning of bridge floor (please referring to Fig. 5);

S6:Surfacing Construction:Symmetrical construction deck paving appurtenant work replicates suspender force and adjusts to design value, The spray painting application of steel pipe protection face, after the completion of construction, field test is simultaneously checked and accepted and (please refers to Fig. 6).

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (5)

1. a kind of steel camber arch bridge construction method, it is characterised in that:The construction method is as follows:
S1:Foundation pile construction:Trestle and platform construction;
Basis and pier stud construction;
5#, 6#, 7# pier capping beam holder are set up, 5#, 6#, 7# pier capping beam are constructed, after concrete bullet mould and intensity reach design value, Tensioning bent cap prestressed strand;
S2:Main arch is constructed:Arch springing section pre-buried steel Arch rib positioning steel member is installed, reinforcing bar after-pouring arch springing concrete has been bound;
Construction main arch bracket basis sets up holder, and precompressed, adjustment holder and template;
The segments main arch 1# and the segments subarch 4# are installed on holder, and sequentially install on holder the segments major arch rib 2#~5# and Corresponding connector is welded in the segments subarch 2#~3# after arch rib line style is adjusted in each segment steel pipe, stull;
S3:Vault support installation:Closure section steel pipe is installed, adjusts welded still pipe after line style, and carry out applying for arch springing concrete Work;
Erecting and welding vault supports, and observation mark is carried out on arch rib, and observation is carried out in each stage of construction;
S4:Pier column is installed:The symmetrical lower pipe concrete of pumping waits for that down tube concrete layer intensity, bullet mould reach design value and mixes It is symmetrical that upper tube inner concrete is perfused after solidifying soil age phase is more than four days;
After pipe inner concrete reaches design strength and age concrete phase is more than four days, transverse girder between arch rib is removed, spandrel column is installed And intercostal crossbeam;
Pier column and intercostal crossbeam upper bracket are installed, bridge pier and column upper beam are installed, be subsequently mounted main arch span centre sunpender and Span centre suspender crossbeam;
S5:Bridge floor rack construction:From main arch and subarch both ends span centre floorings are symmetrically installed to by upstream and downstream along bridge;
It is symmetrical to pour the contact of bridge panel longitudinal wet and laterally wet contact, with post-stretching suspender force;
S6:Surfacing Construction:Symmetrical construction deck paving appurtenant work replicates suspender force and adjusts to design value, steel pipe Protection face spray painting application, after the completion of construction, field test is simultaneously checked and accepted.
2. a kind of steel camber arch bridge construction method according to claim 1, it is characterised in that:In the step S2, installing When arch springing section pre-buried steel Arch rib positioning steel member, pre- picture mosaic and peg figure should be drawn according to design drawing, check rod piece number and Quantity marks spike dowel length areas, lifting center of gravity position and unit weight and installation direction on basic rod piece.
3. a kind of steel camber arch bridge construction method according to claim 1, it is characterised in that:In the step S2, holder with Arch rib steel pipe is contacted using face, and arch rib steel pipe partial is avoided to generate excessive concentrated stress.
4. a kind of steel camber arch bridge construction method according to claim 1, it is characterised in that:In the step S3, vault branch When support installation, the anti-coccidia index in steel girder cantilever erection process should ensure that, carry out matching galassing with ballast or girder steel dead weight Weighing apparatus, meets Middle span closing maximum cantilever installation requirements, and in the longeron of the assembly segments girder steel 1# on holder, it is necessary in longeron Interim fulcrum is arranged in cantilever end.
5. a kind of steel camber arch bridge construction method according to claim 1, it is characterised in that:In the step S5, in tensioning During suspender force, pretensioning span centre sunpender tensioning fulcrum sunpender again, sunpender sunpender on the outside of tensioning again on the inside of pretensioning, across Middle both sides and the symmetrical tensioning of bridge floor.
CN201810555228.5A 2018-06-01 2018-06-01 A kind of steel camber arch bridge construction method CN108708265B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110700103A (en) * 2019-10-16 2020-01-17 中铁工程服务有限公司 Construction method of continuous composite beam

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101289836A (en) * 2007-12-05 2008-10-22 中铁大桥局股份有限公司 Auxiliary erection method of horizontal cable of steel truss arched bridge
CN201151866Y (en) * 2008-01-29 2008-11-19 袁悦 Arch beam type overbridge
CN102367650A (en) * 2011-08-05 2012-03-07 中铁一局集团厦门建设工程有限公司 Construction method of steel pipe arch bridge
KR20130000641A (en) * 2011-06-23 2013-01-03 주식회사 교량과 고속철도 A half-trough arch bridge with connection girder for additional longitudinal forces control of continuous welded rail and construction method
CN204282187U (en) * 2014-11-26 2015-04-22 广东省公路勘察规划设计院股份有限公司 A kind of novel Butterfly Arch Bridge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101289836A (en) * 2007-12-05 2008-10-22 中铁大桥局股份有限公司 Auxiliary erection method of horizontal cable of steel truss arched bridge
CN201151866Y (en) * 2008-01-29 2008-11-19 袁悦 Arch beam type overbridge
KR20130000641A (en) * 2011-06-23 2013-01-03 주식회사 교량과 고속철도 A half-trough arch bridge with connection girder for additional longitudinal forces control of continuous welded rail and construction method
CN102367650A (en) * 2011-08-05 2012-03-07 中铁一局集团厦门建设工程有限公司 Construction method of steel pipe arch bridge
CN204282187U (en) * 2014-11-26 2015-04-22 广东省公路勘察规划设计院股份有限公司 A kind of novel Butterfly Arch Bridge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110700103A (en) * 2019-10-16 2020-01-17 中铁工程服务有限公司 Construction method of continuous composite beam

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