CN105951574A - Steel beam segment, continuous combined beam bridge and construction method of continuous combined beam bridge - Google Patents
Steel beam segment, continuous combined beam bridge and construction method of continuous combined beam bridge Download PDFInfo
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- CN105951574A CN105951574A CN201610294105.1A CN201610294105A CN105951574A CN 105951574 A CN105951574 A CN 105951574A CN 201610294105 A CN201610294105 A CN 201610294105A CN 105951574 A CN105951574 A CN 105951574A
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- girder segment
- bridge
- steel girder
- steel
- pier
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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
- E01D1/00—Bridges in general
-
- 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
-
- 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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of beam bridge construction and discloses a steel beam segment. The steel beam segment comprises a left part and a right part. A gap formed in an opposite-pulling manner is formed between the left part and the right part. The left part and the right part are connected in a welded manner. A continuous combined beam bridge comprises two abutment piers and at least one middle pier located between the two abutment piers. The pier top of the middle pier is provided with the steel beam segment. Multiple combined beam segments are arranged on the two sides of the steel beam segment. A construction method of the continuous combined beam bridge includes the following steps that firstly, the steel beam segment formed by splicing the left part and the right part is provided, the left part and the right part of the steel beam segment are connected through bolts, and the bolts are tensioned; secondly, the combined beam segments are installed on the two sides of the steel beam segment till a steel beam is closed; and thirdly, the bolts on the steel beam segments are loosened gradually, and the left part and the right part of the steel beam segment are welded. By the adoption of the steel beam segment, the continuous combined beam bridge, and the construction method of the continuous combined beam bridge, the working performance of a concrete bridge panel can be greatly improved.
Description
Technical field
The present invention relates to field of bridge construction, be specifically related to a kind of steel girder segment, a kind of group continuously
Close beam bridge and the construction method of a kind of continuous composite beam bridge.
Background technology
Composite beam bridge refers to connect into whole by shear connector by girder steel and concrete slab
Body, a kind of bridge structure making both cooperative bearings, combination beam has given full play to steel tension energy
The feature that power is strong, concrete anti-compression ability is high.Composite beam bridge typically uses cantilever construction, is executing
During work, the top flange concrete slab tension of composite beam bridge, close up into bridge after, mixed
Concrete board still saves the tension in work progress, thus the stress to concrete slab
The most unfavorable so that it is easily to ftracture, and the width in crack is difficult to control to, resistance to the structure of beam bridge
Property and bridge entirety have adverse effect on for a long time, it is difficult to given play to combination beam concrete slab
The advantage that anti-pressure ability is strong.
Currently, the way solving problems conventional is: one is to configure relatively to concrete slab
Many longitudinal prestressings, but the structure economics of bridge so can be caused poor, and a part in advance should
Power can be shared by girder steel, unfavorable to the stress of girder steel, and working procedure is more, whole construction
Cycle is long；Two is after girder steel is closed up by free cantilever erection, then installs concrete slab, but this
It is less that the consequence that belt transect comes is that concrete slab shares internal force, and it is relatively big that internal force shared by girder steel, whole
Individual bridge structure stress is not mated, and steel material increased, and improves engineering cost.
Summary of the invention
For defect present in prior art, it is an object of the invention to provide a kind of girder steel joint
Section, a kind of continuous composite beam bridge and the construction method of a kind of continuous composite beam bridge, it is possible to greatly
Improve the service behaviour of concrete slab.
For reaching object above, the present invention adopts the technical scheme that: provide a kind of steel girder segment,
Described steel girder segment includes being provided with pull-shaped one-tenth between left and right two parts, and described left and right two parts
Gap, and described left and right two parts are by being weldingly connected.
There is provided a kind of continuous composite beam bridge, including two abutment piers and between said two abutment pier
At least one in pier, the pier top of described middle pier is provided with steel girder segment, described steel girder segment bag
Include and be provided with the gap to pull-shaped one-tenth between left and right two parts, and described left and right two parts, and described
Left and right two parts are by being weldingly connected, and the both sides of described steel girder segment are provided with multiple combination beam joint
Section, described combination beam sections and steel girder segment collectively constitute the bridge floor of continuous composite beam bridge.
On the basis of technique scheme, described gap overlaps with the centrage of middle pier.
On the basis of technique scheme, the surface of described combination beam sections and steel girder segment is equal
It is provided with concrete slab.
Also provide for the construction method of a kind of continuous composite beam bridge, comprise the following steps:
Step one: providing a steel girder segment being spliced to form by left and right two parts, use bolt will
Left and right two parts of steel girder segment connect and tensioning bolt；
Step 2: install combination beam sections in steel girder segment both sides, until closure of bridge structure；
Step 3: gradually loosen the bolt on steel girder segment, the left and right two halves of welded steel beam sections
Part.
On the basis of technique scheme, described step one specifically includes:
In beam bridge, in the steel girder segment edge of pier pier top, the centrage of pier is divided into left and right two halves part system
Make, use bolt the two halves part of steel girder segment to be connected and tensioning bolt, hoisting steel girder segment
On the middle pier of beam bridge.
On the basis of technique scheme, steel girder segment left and right with bolts two halves part
Concretely comprise the following steps:
S1: the left and right two halves part of splicing steel girder segment, and between the two halves part of steel girder segment left and right
Form a gap；
S2: fix angle steel in both sides, gap；
S3: use the angle steel on bolt joint gap both sides, and tight a bolt.
On the basis of technique scheme, described step 2 specifically includes:
With the steel girder segment on middle pier as midpoint, use the lifting of girder erection crane symmetry that girder steel joint is installed
Section both sides combination beam sections, until closure of bridge structure.
On the basis of technique scheme, when in bridge, the number of pier is more than or equal to two
Time, described step 2 specifically includes:
With the steel girder segment on each middle pier as midpoint, use girder erection crane symmetry lifting mounting bridge
The combination beam sections of beam, until closure of bridge structure.
On the basis of technique scheme, described step 3 specifically includes:
Remove the bolt connecting steel girder segment left and right two halves part, and the left and right of welded steel beam sections
Two halves part, pours the concrete slab on steel girder segment.
Compared with prior art, a kind of continuous composite beam bridge advantage of the present invention is: use steel
The hybrid beam structure of beam and concrete, has given full play to that steel tension ability is strong, concrete anti-compression
The feature that ability is high, improves the serviceability of bridge.
The advantage of the construction method of a kind of continuous composite beam bridge of the present invention is: the steel on middle pier
Girder segment is split into two halves part manufacture, and is connected with and tensioning, other combination complete to be installed
After girder segment, gradually loosen the bolt on steel girder segment, steel girder segment negative curved on pier in release
Square, makes combination beam sections be become simply-supported state from cantilever position, and concrete slab is by tension shape
State changes pressured state into, so that concrete slab eliminates tension, stores higher
Compressive stress, prevents concrete slab from ftractureing, and the service behaviour of concrete slab is greatly promoted,
The characteristic that concrete crushing strength is high can be given full play to.
Accompanying drawing explanation
Fig. 1 is the structural representation of steel girder segment abdominal part；
Fig. 2 is the structural representation bottom steel girder segment；
Fig. 3 is steel girder segment scheme of installation；
Fig. 4 is the structural representation of composite beam bridge.
In figure: 1-steel girder segment, 2-combination beam sections, 3-gap, 4-high-strength bolt, 5-angle
Steel, 6-long bolt high-strength bolt, 7-concrete slab, pier in 8-, 9-abutment pier.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The present invention provides a kind of steel girder segment, and this steel girder segment 1 includes left and right two parts, and left
It is provided with the gap 3 to pull-shaped one-tenth between right two parts, and left and right two parts are by being weldingly connected.
The present invention also provides for a kind of continuous composite beam bridge, and as shown in Figure 4, this beam bridge includes two
Pier 8 in abutment pier 9 and at least one between two abutment piers 9, the specification of beam bridge is different,
Wherein the number of pier 8 also differs.The pier top of middle pier 8 is provided with steel girder segment 1, and girder steel saves
Section 1 includes being provided with the gap 3 to pull-shaped one-tenth between left and right two parts, and left and right two parts, and
Left and right two parts are by being weldingly connected, and gap 3 overlaps with the centrage of middle pier 8.Steel girder segment
It is common that the both sides of 1 are provided with multiple combination beam sections 2, combination beam sections 2 and steel girder segment 1
The bridge floor of composition continuous composite beam bridge.Combination beam sections 2 is made up of girder steel and concrete, combination
The surface of girder segment 2 and steel girder segment 1 is equipped with concrete slab 7.Use girder steel and mix
The hybrid beam structure of solidifying soil, has given full play to that steel tension ability is strong, concrete anti-compression ability is high
Feature, improve the serviceability of bridge.
The present invention also provides for the construction method of a kind of continuous composite beam bridge, specifically includes following step
Rapid:
Step one: see shown in Fig. 1,2,3, in girder steel construction factory, by pier 8 in beam bridge
The steel girder segment 1 of pier top along in the centrage of pier 8 be divided into left and right two halves part and manufacture, so
The two halves part of steel girder segment 1 is connected and tensioning bolt by rear employing bolt, and concrete is: first
The left and right two halves part of splicing steel girder segment 1, forms one between steel girder segment about 1 two halves part
Gap 3；Fix angle steel 5 in both sides, gap 3, use the angle steel on bolt joint gap 3 both sides
5, and tight a bolt.It is usually on the web and base plate of steel girder segment about 1 two halves part
Fixing angle steel 5 with high-strength bolt 4, angle steel 5 is positioned at the both sides in gap 3, then by long spiral shell
Bar high-strength bolt 6 connects the angle steel 5 on the web of left and right two halves part, and it is stubborn to apply pretightning force
Tight long bolt high-strength bolt 6.After the left and right two halves part connection of steel girder segment 1 tensioning complete,
Again steel girder segment 1 is lifted on the middle pier 8 of beam bridge.
Step 2: shown in Figure 4, with the steel girder segment 1 on middle pier 8 as midpoint, uses
The combination beam sections 2 of steel girder segment 1 both sides is installed in the lifting of girder erection crane symmetry, until bridge closes
Hold together.The surface of combination beam sections 2 is concrete slab 7.The specification of bridge is different, wherein
The number of pier 8 is the most different, for the number of middle pier 8 more than or equal to the bridge of two, with often
Steel girder segment 1 on individual middle pier 8 is midpoint, uses the lifting of girder erection crane symmetry to install bridge
Combination beam sections 2, until closure of bridge structure, and the installation of the middle sections of two middle piers 8,
First girder steel is installed, then pours wet seam.
Step 3: gradually loosen the bolt on steel girder segment 1, i.e. long bolt high-strength bolt 6
Pretightning force, the hogging moment of steel girder segment 1 on pier 8 in release, make combination beam sections 2 by cantilever
State becomes simply-supported state, and concrete slab 7 is changed into pressured state by tension state, thus
Make concrete slab 7 eliminate tension, store higher compressive stress, prevent concrete
Floorings 7 ftracture, and the service behaviour of concrete slab 7 is greatly promoted, it is possible to give full play to
The characteristic that concrete crushing strength is high.Then remove and connect steel girder segment about 1 two halves part
Bolt and angle steel 5, and the left and right two halves part of welded steel beam sections 1, pour steel girder segment 1
On concrete slab 7.
The present invention is not limited to above-mentioned embodiment, for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications,
Within these improvements and modifications are also considered as protection scope of the present invention.This specification is not made in detail
The content described belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. a steel girder segment, it is characterised in that: described steel girder segment (1) includes left and right two
The gap (3) to pull-shaped one-tenth, and described left and right it is provided with between part, and described left and right two parts
Two parts are by being weldingly connected.
2. a continuous composite beam bridge, it is characterised in that: include two abutment piers (9) and be positioned at
Pier (8) at least one between said two abutment pier (9), the pier top of described middle pier (8)
Being provided with steel girder segment (1), described steel girder segment (1) includes left and right two parts, and described
It is provided with the gap (3) to pull-shaped one-tenth between the two parts of left and right, and described left and right two parts are by weldering
Connecing connected, the both sides of described steel girder segment (1) are provided with multiple combination beam sections (2), institute
State combination beam sections (2) and steel girder segment (1) collectively constitutes the bridge floor of continuous composite beam bridge.
3. a kind of continuous composite beam bridge as claimed in claim 2, it is characterised in that: described
Gap (3) overlaps with the centrage of middle pier (8).
4. a kind of continuous composite beam bridge as claimed in claim 2, it is characterised in that: described
The surface of combination beam sections (2) and steel girder segment (1) is equipped with concrete slab (7).
5. the construction method of a continuous composite beam bridge, it is characterised in that comprise the following steps:
Step one a: steel girder segment (1) being spliced to form by left and right two parts is provided, uses spiral shell
Left and right two parts of steel girder segment (1) are connected and tensioning bolt by bolt；
Step 2: install combination beam sections (2) in steel girder segment (1) both sides, until bridge
Close up；
Step 3: gradually loosen the bolt on steel girder segment (1), welded steel beam sections (1)
Left and right two halves part.
The construction method of a kind of continuous composite beam bridge the most as claimed in claim 5, its feature
Being, described step one specifically includes:
In beam bridge, the centrage of steel girder segment (1) Yan Zhongdun (8) of pier (8) pier top is divided into
Left and right two halves part manufactures, and uses bolt that the two halves part of steel girder segment (1) is connected and opened
Tight bolt, on the middle pier (8) of hoisting steel girder segment (1) to beam bridge.
The construction method of a kind of continuous composite beam bridge the most as claimed in claim 6, its feature
It is: concretely comprising the following steps of steel girder segment with bolts (1) left and right two halves part:
S1: the left and right two halves part of splicing steel girder segment (1), and steel girder segment (1) left and right
A gap (3) is formed between two halves part；
S2: fix angle steel (5) in gap (3) both sides；
S3: use the angle steel (5) on bolt joint gap (3) both sides, and tight a bolt.
The construction method of a kind of continuous composite beam bridge the most as claimed in claim 5, its feature
Being, described step 2 specifically includes:
With the steel girder segment (1) on middle pier (8) as midpoint, use the lifting of girder erection crane symmetry
Steel girder segment (1) both sides combination beam sections (2) are installed, until closure of bridge structure.
The construction method of a kind of continuous composite beam bridge the most as claimed in claim 5, its feature
It is: when in bridge, the number of pier (8) is more than or equal to two, described step 2 is concrete
Including:
With the steel girder segment (1) on each middle pier (8) as midpoint, use girder erection crane symmetrical
The combination beam sections (2) of bridge is installed in lifting, until closure of bridge structure.
The construction method of a kind of continuous composite beam bridge the most as claimed in claim 5, its feature
It is: described step 3 specifically includes:
Remove the bolt connecting steel girder segment (1) left and right two halves part, and welded steel beam sections
(1) left and right two halves part, pours the concrete slab (7) on steel girder segment (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294105.1A CN105951574B (en) | 2016-05-06 | 2016-05-06 | The construction method of continuous composite beam bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610294105.1A CN105951574B (en) | 2016-05-06 | 2016-05-06 | The construction method of continuous composite beam bridge |
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| CN105951574B CN105951574B (en) | 2017-10-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978434A (en) * | 2018-10-16 | 2018-12-11 | 河南省交通规划设计研究院股份有限公司 | A kind of Novel steel-is mixed to be combined Continuous Box Girder Bridge and its industrializes construction method without bracket |
| CN109235235A (en) * | 2018-11-19 | 2019-01-18 | 绍兴文理学院 | A kind of steel reinforced concrete combined bridge bridge floor continuously locates the longitudinally connected method of girder |
| CN112523067A (en) * | 2020-12-02 | 2021-03-19 | 广州大学 | Combined beam |
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| KR20050052040A (en) * | 2003-11-28 | 2005-06-02 | 신성건설 주식회사 | Composite girder for bridge and construction method |
| CN101575840A (en) * | 2009-06-02 | 2009-11-11 | 重庆交通大学 | Steel-concrete combined continuous rigid frame bridge construction method for cantilever jointing steel box section |
| CN101644024A (en) * | 2009-08-21 | 2010-02-10 | 重庆交通大学 | Prestress steel purlin-concrete combined continuous rigid frame bridge and construction method thereof |
| CN104153284A (en) * | 2014-07-31 | 2014-11-19 | 桂林理工大学 | Partial filling type steel box concrete continuous composite girder bridge and construction method thereof |
| CN105064202A (en) * | 2015-07-17 | 2015-11-18 | 安徽省交通建设有限责任公司 | Profile steel and reinforced concrete slab assembled light composite beam bridge and construction method thereof |
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Patent Citations (5)
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|---|---|---|---|---|
| KR20050052040A (en) * | 2003-11-28 | 2005-06-02 | 신성건설 주식회사 | Composite girder for bridge and construction method |
| CN101575840A (en) * | 2009-06-02 | 2009-11-11 | 重庆交通大学 | Steel-concrete combined continuous rigid frame bridge construction method for cantilever jointing steel box section |
| CN101644024A (en) * | 2009-08-21 | 2010-02-10 | 重庆交通大学 | Prestress steel purlin-concrete combined continuous rigid frame bridge and construction method thereof |
| CN104153284A (en) * | 2014-07-31 | 2014-11-19 | 桂林理工大学 | Partial filling type steel box concrete continuous composite girder bridge and construction method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978434A (en) * | 2018-10-16 | 2018-12-11 | 河南省交通规划设计研究院股份有限公司 | A kind of Novel steel-is mixed to be combined Continuous Box Girder Bridge and its industrializes construction method without bracket |
| CN108978434B (en) * | 2018-10-16 | 2024-02-20 | 河南省交通规划设计研究院股份有限公司 | Bracket-free industrialized construction method of steel-concrete combined continuous box girder bridge |
| CN109235235A (en) * | 2018-11-19 | 2019-01-18 | 绍兴文理学院 | A kind of steel reinforced concrete combined bridge bridge floor continuously locates the longitudinally connected method of girder |
| CN112523067A (en) * | 2020-12-02 | 2021-03-19 | 广州大学 | Combined beam |
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| Publication number | Publication date |
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| CN105951574B (en) | 2017-10-31 |
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