CN109098094A - Construction method without bracket horizontal splicing corrugated steel web plate combined box girder - Google Patents
Construction method without bracket horizontal splicing corrugated steel web plate combined box girder Download PDFInfo
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- CN109098094A CN109098094A CN201811201643.7A CN201811201643A CN109098094A CN 109098094 A CN109098094 A CN 109098094A CN 201811201643 A CN201811201643 A CN 201811201643A CN 109098094 A CN109098094 A CN 109098094A
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of construction methods of no bracket horizontal splicing corrugated steel web plate combined box girder, first successively install bent cap and support at the top of abutment pier shaft, the erection support at the top of bridge pier pier shaft；Hoisting prefabricated steel box-girder again is installed on the support at the top of bridge pier pier shaft；The end of Wavelike steel webplate concrete I-beam is mounted on the bent cap support of abutment pier shaft or is attached with prefabricated steel box-girder by hoisting prefabricated Wavelike steel webplate concrete I-beam later；The wet seam of top plate and the wet seam of bottom plate are finally poured between laterally adjacent Wavelike steel webplate concrete I-beam.The present invention by prefabricated steel box-girder connect respectively across Wavelike steel webplate concrete I-beam, overcome the problem of existing cast-in-place corrugated steel web concrete combined box grinder encounters in construction, the advantages of making it not only have the advantages of continuous beam stress system bridge, maintaining corrugated steel web concrete combined box grinder structure itself.
Description
Technical field
The present invention relates to the technical field of bridge construction of highway and urban road, laterally spell more particularly, to a kind of no bracket
Fill the construction method of corrugated steel web plate composite box girder.
Background technique
Wavelike steel webplate prestressed concrete combined box beam is as a kind of novel steel-concrete combined structure, sufficiently benefit
With the advantage that concrete crushing strength is high, Wavelike steel webplate shearing strength is high, effectively two kinds of steel, concrete materials are combined
Get up, improve the service efficiency of material, is a kind of economic, reasonable, efficient structure type.
Currently, the construction method of Wavelike steel webplate combined bridge mainly has following three kinds: the first is Full space support construction
Method, raft support method are densely covered at regular intervals to set up the scaffold to play a supportive role, formation operation platform, then on bracket
Wavelike steel webplate, assembling reinforcement, casting concrete, form removal and bracket after concrete reaches intensity are installed.Full framing
Method construction is a kind of long-term adopted method, and advantage is not need Large-scale Hoisting equipment；The disadvantage is that working bracket and mould
Plate consumption is big, and cast-in-place concrete amount is big, quality is not easy to guarantee, long in time limit, road needs line-break under construction period bridge.The
Two kinds are Hanging Basket segment Cantilever Casting Construction methods, i.e., using Hanging Basket as operating platform, and the assembled waveform steel abdomen on this platform
Then plate, assembling reinforcement are poured concrete, after concrete reaches intensity, the next segment of hanging basket advancing construction.Hanging Basket segment is outstanding
The advantages of arm casting and constructing is to adapt to Longspan Bridge, and the segmented amount of concrete poured is smaller, road under construction period bridge
It can partially pass through；The disadvantage is that high altitude operation will cause security risk to road under bridge, segmented construction, duration are longer, make
Valence is higher.The third is precast assembly method, i.e. prefabrication Wavelike steel webplate prestressed concrete I-beam, and transport is installed on bridge
On beam Bent beam, longitudinal and transverse bridge is connected to form multispan company by way of cast-in-place concrete to adjacent I beam part unit
Continuous beam.Existing transverse direction precast assembly method advantage is batch production, standardizes the quality control being prefabricated with conducive to beam body, cast in situs
Amount of concrete is smaller, road not line-break, low cost under construction period bridge；The disadvantage is that the method is smaller at bridge rear fulcrum hogging moment, no
Advantageous unloading capable of being generated to positive moment of span central point to act on, causing larger across interior girder height, span ability is limited；In addition, also needing
Bent cap is set at bridge pier, increases bridge pier size, increases substructure project amount, the construction period is longer, to road traffic
Certain influence can be generated.
Summary of the invention
The present invention provides a kind of construction method of no bracket horizontal splicing corrugated steel web plate combined box girder, it is therefore intended that solves
The problem of existing transverse direction precast assembly method is only used for the bridge of freely-supported or Simply supported non-uniform structure.
To achieve the above object, the present invention can take following technical proposals:
The construction method of no bracket horizontal splicing corrugated steel web plate combined box girder of the present invention, includes the following steps:
The first step successively installs bent cap and support at the top of abutment pier shaft, the erection support at the top of bridge pier pier shaft；
Second step, hoisting prefabricated steel box-girder are installed on the support at the top of bridge pier pier shaft；
Third step, hoisting prefabricated Wavelike steel webplate concrete I-beam install the end of Wavelike steel webplate concrete I-beam
It is attached on the bent cap support of abutment pier shaft or with prefabricated steel box-girder；
4th step is poured the wet seam of top plate and the wet seam of bottom plate between laterally adjacent Wavelike steel webplate concrete I-beam.
The top plate and bottom plate of the prefabricated steel box-girder and prefabricated Wavelike steel webplate concrete I-beam, web pass through bolt
Or pin shaft is connected.
It is provided on the top plate and bottom plate of the prefabricated steel box-girder and is embedded in the wet seam of the top plate, in the wet seam of bottom plate
Peg.
The wet seam of the top plate and the wet seam of bottom plate have been respectively arranged below and the prefabricated Wavelike steel webplate concrete in two sides
I-beam connected steel-made support plate is provided on the steel-made support plate and is embedded in the wet seam of the top plate, the wet seam of bottom plate
In peg.
The construction method of no bracket horizontal splicing corrugated steel web plate combined box girder provided by the invention, passes through prefabricated steel box-girder
Connection respectively across Wavelike steel webplate concrete I-beam, overcome existing cast-in-place corrugated steel web concrete combined box grinder and constructing
In the problem of encountering, so that it is not only had the advantages of continuous beam stress system bridge, maintain Wavelike steel webplate coagulation
It is the advantages of local soil type's mould assembling girder construction itself, specific as follows:
1, there is continuous beam stress system, Bending Moment Distribution is more reasonable, reduces girder height, is applicable to more Long span, bridge
The limited Bridge alternatives of lower headroom.
2, bridge pier pier top uses prefabricated steel box-girder, eliminates pier cap beam, template consumption and poured in place concrete amount are more
Few, the duration is shorter, influences in work progress on road traffic smaller.
3, bridge pier pier top uses prefabricated steel box-girder, eliminates pier cap beam, can reduce bridge pier size, saves substructure work
Cheng Liang, pier shaft may be designed to graceful moulding, more competitive to the Bridge alternatives that landscape is more demanding.
Detailed description of the invention
Fig. 1 is construction procedure figure one of the invention.
Fig. 2 is construction procedure figure two of the invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is construction procedure figure three of the invention.
Fig. 5 is the A-A profile in Fig. 4.
Fig. 6 is the B-B profile in Fig. 4.
Specific embodiment
It elaborates by taking two bridges across single box-beam structure as an example to the present invention with reference to the accompanying drawing.The present embodiment is with this
Premised on the technical solution of invention, the detailed implementation method and specific operation process are given, but protection scope of the present invention
It is not limited to following embodiments.
The construction method of no bracket horizontal splicing corrugated steel web plate combined box girder of the present invention, includes the following steps:
The first step, as shown in Figure 1, bent cap 1.1 and the first support 1.2 are successively installed at the top of 1 pier shaft of abutment at bridge both ends,
The second support 2.1 is installed at the top of 2 pier shaft of bridge pier among bridge；
Second step lifts prefabricated steel box-girder 3 as shown in Figure 5, is installed on the second support 2.1 at the top of 2 pier shaft of bridge pier；
Third step, as shown in Figure 2,3, to abutment 1, the 2 hoisting prefabricated Wavelike steel webplate concrete I-beam 4 in top of bridge pier, wherein
Four prefabricated Wavelike steel webplate concrete I-beams 4 install phase with 1 the first support of pier shaft 1.2 of abutment close to one end of abutment 1
Even, the other end then links together with prefabricated steel box-girder 3 respectively.Specifically, it is carried out in needs and prefabricated steel box-girder 3 longitudinal spliced
Prefabricated 4 top plate of Wavelike steel webplate concrete I-beam and bottom plate end face on pre-embedded steel slab, the roof and floor of prefabricated steel box-girder 3 and
Roof and floor longitudinal stiffener is welded with pre-embedded steel slab on prefabricated Wavelike steel webplate concrete I-beam 4.Prefabricated 3 abdomen of steel box-girder
Also using welding between plate and prefabricated 4 web of Wavelike steel webplate concrete I-beam.In addition, top plate and the bottom of prefabricated steel box-girder 3
Multiple pegs (being specifically shown in the 4th step) for reinforcing connection are additionally provided in the middle position of plate.
It is wet to be poured top plate as shown in Fig. 4,6 between laterally adjacent Wavelike steel webplate concrete I-beam 4 for 4th step
Seam 5 and the wet seam 6 of bottom plate.Specifically, above-mentioned prefabricated Wavelike steel webplate concrete I-beam 4, can when carrying out horizontally-spliced
Using the modes such as wet joint concrete or wet joint concrete+steel plate.The concrete operations connected using wet joint concrete are as follows:
The top plate transverse steel of contiguous prefabricated Wavelike steel webplate concrete I-beam 4 and bottom plate transverse steel are pulled out and be respectively welded at
Together, the wet seam 5 of pouring template top plate and the wet seam 6 of bottom plate are then utilized, combined box beam unit is formed.Using wet seam coagulation
When soil+steel plate mode, pass through steel connecting plate 7.1,7.2 first for the top of contiguous prefabricated Wavelike steel webplate concrete I-beam 4
Plate and bottom plate, which are respectively welded, to be connected together, and the upper surface of the steel connecting plate 7.1,7.2 is respectively evenly distributed with multiple pegs
7.3, the wet seam 5 of pouring template top plate and the wet seam 6 of bottom plate are then utilized, combined box beam unit is formed.In casting, top plate is wet connects
When seam 5 and the wet seam 6 of bottom plate, the peg of prefabricated 3 top plate of steel box-girder and bottom plate middle position can be reinforced in being also embedded in
Connection between single span combined box beam unit and prefabricated steel box-girder 3.
By aforesaid operations, form two bridges across single box-beam structure, often across combined box beam unit it is prefabricated by two
Wavelike steel webplate concrete I-beam is by the wet seam of top plate and the wet seam of bottom plate is horizontally-spliced forms, it is adjacent across combined box beam
It is longitudinal spliced by the prefabricated steel box-girder progress being arranged on bridge pier pier shaft bracket between unit.Overall structure is simple, convenient for applying
Work, bridge Bending Moment Distribution is more reasonable, reduces girder height, and span ability is strong, can reduce bridge pier size, guarantees work progress
Road not line-break, effectively reduces the influence to road traffic under bridge under jackshaft；Simultaneously as no setting is required pier cap beam, therefore
Prefabricated or cast-in-place mode can be used in bridge pier pier shaft, and bridge pier superstructure is slim and graceful, is convenient for design model, and landscape effect is good.
Claims (4)
1. a kind of construction method of no bracket horizontal splicing corrugated steel web plate combined box girder, characterized by the following steps:
The first step successively installs bent cap and support at the top of abutment pier shaft, the erection support at the top of bridge pier pier shaft；
Second step, hoisting prefabricated steel box-girder are installed on the support at the top of bridge pier pier shaft；
Third step, hoisting prefabricated Wavelike steel webplate concrete I-beam install the end of Wavelike steel webplate concrete I-beam
It is attached on the bent cap support of abutment pier shaft or with prefabricated steel box-girder；
4th step is poured the wet seam of top plate and the wet seam of bottom plate between laterally adjacent Wavelike steel webplate concrete I-beam.
2. the construction method of no bracket horizontal splicing corrugated steel web plate combined box girder according to claim 1, feature exist
In: the top plate and bottom plate of the prefabricated steel box-girder and prefabricated Wavelike steel webplate concrete I-beam, web pass through bolt or pin shaft
It is connected.
3. the construction method of no bracket horizontal splicing corrugated steel web plate combined box girder according to claim 1, feature exist
In: it is provided on the top plate and bottom plate of the prefabricated steel box-girder and is embedded in the wet seam of the top plate, the peg in the wet seam of bottom plate.
4. the construction method of no bracket horizontal splicing corrugated steel web plate combined box girder according to claim 1, feature exist
In being respectively arranged below and the prefabricated Wavelike steel webplate concrete I-beam in two sides for: the wet seam of the top plate and the wet seam of bottom plate
Connected steel-made support plate is provided on the steel-made support plate and is embedded in the wet seam of the top plate, the bolt in the wet seam of bottom plate
Nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201643.7A CN109098094A (en) | 2018-10-16 | 2018-10-16 | Construction method without bracket horizontal splicing corrugated steel web plate combined box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811201643.7A CN109098094A (en) | 2018-10-16 | 2018-10-16 | Construction method without bracket horizontal splicing corrugated steel web plate combined box girder |
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| CN109098094A true CN109098094A (en) | 2018-12-28 |
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| CN201811201643.7A Withdrawn CN109098094A (en) | 2018-10-16 | 2018-10-16 | Construction method without bracket horizontal splicing corrugated steel web plate combined box girder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455807A (en) * | 2020-04-03 | 2020-07-28 | 中国电建集团中南勘测设计研究院有限公司 | Beam-end prestressed structure and construction method thereof |
| CN111910500A (en) * | 2020-02-21 | 2020-11-10 | 清华大学 | Anti-overturning combined bridge and construction method |
| CN114687273A (en) * | 2022-02-25 | 2022-07-01 | 中铁十八局集团有限公司 | Bridge structure with U-shaped beam and construction method thereof |
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|---|---|---|---|---|
| JP2009041272A (en) * | 2007-08-09 | 2009-02-26 | Ps Mitsubishi Construction Co Ltd | Construction method for bridge |
| CN103132460A (en) * | 2011-11-28 | 2013-06-05 | 上海市基础工程有限公司 | Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam |
| CN103711067A (en) * | 2014-01-13 | 2014-04-09 | 河南省交通规划勘察设计院有限责任公司 | Transversely assembled corrugated steel web combined box girder with small number of supports and construction method thereof |
| KR20140098016A (en) * | 2013-01-30 | 2014-08-07 | 우경기술주식회사 | PSC U girder bridge and it's construction method using segment girder |
| CN105064198A (en) * | 2015-07-30 | 2015-11-18 | 苏交科集团股份有限公司 | Semi-prefabricated assembled corrugated steel web plate combined box girder and preparation method thereof |
-
2018
- 2018-10-16 CN CN201811201643.7A patent/CN109098094A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009041272A (en) * | 2007-08-09 | 2009-02-26 | Ps Mitsubishi Construction Co Ltd | Construction method for bridge |
| CN103132460A (en) * | 2011-11-28 | 2013-06-05 | 上海市基础工程有限公司 | Concrete filled steel tubular temporary consolidation system of cast-in-cantilever beam |
| KR20140098016A (en) * | 2013-01-30 | 2014-08-07 | 우경기술주식회사 | PSC U girder bridge and it's construction method using segment girder |
| CN103711067A (en) * | 2014-01-13 | 2014-04-09 | 河南省交通规划勘察设计院有限责任公司 | Transversely assembled corrugated steel web combined box girder with small number of supports and construction method thereof |
| CN105064198A (en) * | 2015-07-30 | 2015-11-18 | 苏交科集团股份有限公司 | Semi-prefabricated assembled corrugated steel web plate combined box girder and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910500A (en) * | 2020-02-21 | 2020-11-10 | 清华大学 | Anti-overturning combined bridge and construction method |
| CN111455807A (en) * | 2020-04-03 | 2020-07-28 | 中国电建集团中南勘测设计研究院有限公司 | Beam-end prestressed structure and construction method thereof |
| CN111455807B (en) * | 2020-04-03 | 2021-11-26 | 中国电建集团中南勘测设计研究院有限公司 | Beam-end prestressed structure and construction method thereof |
| CN114687273A (en) * | 2022-02-25 | 2022-07-01 | 中铁十八局集团有限公司 | Bridge structure with U-shaped beam and construction method thereof |
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Application publication date: 20181228 |