CN108708265B - 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
CN108708265B
CN108708265B CN201810555228.5A CN201810555228A CN108708265B CN 108708265 B CN108708265 B CN 108708265B CN 201810555228 A CN201810555228 A CN 201810555228A CN 108708265 B CN108708265 B CN 108708265B
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CN
China
Prior art keywords
construction
arch
steel
bridge
installation
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CN201810555228.5A
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Chinese (zh)
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CN108708265A (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 methods of technical field of bridge construction, and specific step is as follows for the construction method: S1: foundation pile construction: trestle and platform construction;S2: main arch construction: installation arch springing section pre-buried steel Arch rib positioning steel member;S3: vault support installation: installation closure section steel pipe adjusts welded still pipe after line style;S4: pier column installation: symmetrical to pump lower pipe concrete;S5: floorings bridge floor rack construction: are symmetrically installed to by upstream and downstream from main arch and subarch both ends span centre along bridge;S6: Surfacing Construction: symmetrical construction deck paving appurtenant work, duplication suspender force is simultaneously adjusted to design value, the spray painting coating 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 guaranteed 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 technique
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 utilization rate is high, saves the feature of material and shape grace.Arch is the key component in rack construction, cast-in-place coagulation Need to build arch when native arch bridge to be used to support 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, difficulty of construction is big for arch bridge, long construction period, and the main span of arch bridge encircles knot 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.
Summary of the invention
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 invention provides the following technical scheme: a kind of steel camber arch bridge construction method, the construction method Specific step is as follows:
S1: foundation pile construction: trestle and platform construction;
Basis and pier stud construction;
5#, 6#, 7# pier capping beam bracket are set up, the construction of 5#, 6#, 7# pier capping beam reaches design to concrete bullet mould and intensity After value, tensioning bent cap prestressed strand;
S2: main arch construction: installation arch springing section pre-buried steel Arch rib positioning steel member has bound reinforcing bar after-pouring arch springing coagulation Soil;
Main arch of constructing is basic, sets up bracket, and precompressed, adjustment bracket and template;
The segment main arch 1# and the segment subarch 1# are installed on bracket, and major arch rib 2#~5# section is sequentially installed on bracket Section and the segment subarch 2#~3#, weld corresponding connector after arch rib line style is adjusted in each segment steel pipe, stull;
S3: vault support installation: installation closure section steel pipe adjusts welded still pipe after line style, and carry out vault concrete Construction;
The support of erecting and welding vault, and observation mark is carried out on arch rib, observation is carried out in each stage of construction;
S4: pier column installation: it is symmetrical to pump lower pipe concrete, reach design value to down tube concrete layer intensity, bullet mould It is symmetrical that upper tube inner concrete is perfused and after age concrete phase is greater than four days;
After pipe inner concrete reaches design strength and age concrete phase is greater 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, spandrel column and pier column upper beam are installed, master is subsequently mounted Span of arch middle hanger and span centre suspender crossbeam;
S5: floorings bridge floor rack construction: are symmetrically installed to by upstream and downstream from main arch and subarch both ends along bridge;
Floorings longitudinal wet joint and laterally wet seam are symmetrically poured, 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 coating 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, peg 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, bracket and arch rib steel pipe use face contact, avoid 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 self weight, meets Middle span closing maximum cantilever installation requirements, and spell on bracket When the stringer of the segment steel loading beam 1#, it is necessary to which in the cantilever end of stringer, 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 two sides and bridge floor bilateral symmetry tensioning on the outside of tensioning again on the inside of pretensioning.
Compared with prior art, the beneficial effects of the present invention are: 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 guaranteed in arch bridge across the high-precision closure of span centre.
Detailed description of the invention
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 embodiment
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 description, 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, specific step is as follows for the construction method: S1: foundation pile construction: trestle and platform construction;
Basis and pier stud construction;
5#, 6#, 7# pier capping beam bracket are set up, the construction of 5#, 6#, 7# pier capping beam reaches design to concrete bullet mould and intensity After value, tensioning bent cap prestressed strand, (please referring to Fig. 1);
S2: main arch construction: installation arch springing section pre-buried steel Arch rib positioning steel member has bound reinforcing bar after-pouring arch springing coagulation 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 number and quantity, mark peg length areas, lifting center of gravity position and unit weight and installation direction on basic rod piece;
Main arch of constructing is basic, sets up bracket, and precompressed, adjustment bracket and template, bracket are connect with arch rib steel pipe using face Touching, avoids arch rib steel pipe partial from generating excessive concentrated stress;
The segment main arch 1# and the segment subarch 1# are installed on bracket, and major arch rib 2#~5# section is sequentially installed on bracket Section and the segment subarch 2#~3#, weld corresponding connector (please referring to Fig. 2) after arch rib line style is adjusted in each segment steel pipe, stull;
S3: vault support installation: installation closure section steel pipe adjusts welded still pipe after line style, and carry out vault 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 stringer of the assembly segment girder steel 1# on bracket, Interim fulcrum must be set in the cantilever end of stringer;
The support of erecting and welding vault, and observation mark is carried out on arch rib, observation, which is carried out, in each stage of construction (please refers to Fig. 3);
S4: pier column installation: it is symmetrical to pump lower pipe concrete, reach design value to down tube concrete layer intensity, bullet mould It is symmetrical that upper tube inner concrete is perfused and after age concrete phase is greater than four days;
After pipe inner concrete reaches design strength and age concrete phase is greater 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, spandrel column and pier column upper beam are installed, master is subsequently mounted Span of arch middle hanger and span centre suspender crossbeam (please referring to Fig. 4);
S5: floorings bridge floor rack construction: are symmetrically installed to by upstream and downstream from main arch and subarch both ends along bridge;
Floorings longitudinal wet joint and laterally wet contact seam are symmetrically poured, 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 bridge floor bilateral symmetry tensioning (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 coating 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 A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding 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: specific step is as follows for the construction method:
S1: foundation pile construction: trestle and platform construction;
Basis and pier stud construction;
5#, 6#, 7# pier capping beam bracket 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 construction: installation arch springing section pre-buried steel Arch rib positioning steel member has bound reinforcing bar after-pouring arch springing concrete;
Main arch of constructing is basic, sets up bracket, and precompressed, adjustment bracket and template;
The segment main arch 1# and the segment subarch 1# are installed on bracket, and sequentially install on bracket the segment major arch rib 2#~5# and Corresponding connector is welded after arch rib line style is adjusted in each segment steel pipe, stull in the segment subarch 2#~3#;
S3: vault support installation: installation closure section steel pipe adjusts welded still pipe after line style, and carry out applying for vault concrete Work;
The support of erecting and welding vault, and observation mark is carried out on arch rib, observation is carried out in each stage of construction;
S4: pier column is installed: it is symmetrical to pump lower pipe concrete, reach design value to down tube concrete layer intensity, bullet mould and mixes It is symmetrical that upper tube inner concrete is perfused after solidifying soil age phase is greater than four days;
After pipe inner concrete reaches design strength and age concrete phase is greater 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, spandrel column and pier column upper beam are installed, be subsequently mounted main arch across Middle hanger and span centre suspender crossbeam;
S5: floorings bridge floor rack construction: are symmetrically installed to by upstream and downstream from main arch and subarch both ends along bridge;
Floorings longitudinal wet joint and laterally wet seam are symmetrically poured, 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 coating, 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 peg 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, bracket with Arch rib steel pipe uses face contact, 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, carried out with ballast or girder steel self weight with galassing Weighing apparatus, meets Middle span closing maximum cantilever installation requirements, and in the stringer of the assembly segment girder steel 1# on bracket, it is necessary in stringer 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 two sides and bridge floor bilateral symmetry tensioning.
CN201810555228.5A 2018-06-01 2018-06-01 A kind of steel camber arch bridge construction method CN108708265B (en)

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Application Number Priority Date Filing Date Title
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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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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

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