CN104264587A - Mounting method of PBL (perfobond leiste) shear keys inside steel box girder for reinforced concrete composite segment - Google Patents
Mounting method of PBL (perfobond leiste) shear keys inside steel box girder for reinforced concrete composite segment Download PDFInfo
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- CN104264587A CN104264587A CN201410484866.4A CN201410484866A CN104264587A CN 104264587 A CN104264587 A CN 104264587A CN 201410484866 A CN201410484866 A CN 201410484866A CN 104264587 A CN104264587 A CN 104264587A
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- pbl shear
- shear connector
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- beam body
- pbl
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a mounting method of PBL shear keys inside a steel box girder for a reinforced concrete composite segment. The method comprises the following steps of dividing the PBL shear keys of the reinforced concrete composite segment into a plurality of PBL shear key segments; threading the PBL shear key segments and then preassembling the segments into a partially-assembled reinforced concrete composite segment steel box girder according to designated positions; adjusting the positions of the PBL shear key segments during the assembling process of the reinforced concrete composite segment steel box girder; after assembly of bridge positions of the composite segment steel box girder is completed, connecting the PBL shear key segments through straight thread sleeves. The mounting method of the PBL shear keys inside the steel box girder for the reinforced concrete compost segment has the advantages of being applicable to complex reinforced concrete composite segment structures, capable of freely adjusting the length of the PBL shear key segments according to structural features and high in flexibility. Besides, the mounting method of the PBL shear keys inside the steel box girder for the reinforced concrete compost segment is simple in process, high in construction efficiency, short in field operation time and easy to meet relevant norms and requirements on construction quality.
Description
Technical field
The present invention relates to a kind of bridge building operations, be specifically related to a kind of mounting method for PBL shear connector in the steel box-girder of toughened internal stress.
Background technology
Along with domestic bridge develops, steel box-girder and concrete box girder adapter section form of structure are used widely.Toughened internal stress is the structure position that solution steel-mixed stiffness transition is therebetween smooth-going, all even steel of Stress transmit-mixed combination reliably connects.
Tradition toughened internal stress PBL shear connector length is long, rigidity is large, should not weld, construction precision requirement is high, and current toughened internal stress PBL shear connector construction does not still have ripe method.
In concrete construction, the PBL shear connector method with regard to first installing before being typically employed in adapter section steel box girder assembling is constructed or PBL shear connector is cut into the method installation that little sections installs rear welding or sleeve connection after adapter section steel box girder assembling completes.The former brings a lot of inconvenience, narrow space to toughened internal stress steel box girder assembling, welding and detection, causes part weld seam to be difficult to welding; PBL shear connector is cut to short and small sections by the latter, and single PBL shear connector divides that sections is many, joint is many, is difficult to meet code requirement, and construction quality potential risk is comparatively outstanding.
Summary of the invention
The technical problem to be solved in the present invention is: propose a kind of easy construction, the assembled quick PBL shear connector mounting method effective with being connected shearing resistance.
The present invention is the technical scheme solving the problems of the technologies described above proposition: 1, a kind of mounting method for PBL shear connector in the steel box-girder of toughened internal stress, described steel box-girder is welded by the three sections of beam bodies being divided into left width beam body, stage casing beam body and right width beam body are assembled, multiple spaced biography shears are comprised respectively in described left width beam body, stage casing beam body and right width beam body, often open to pass and spaced apartly on shear be provided with multiple PBL shear connector installing hole, described PBL shear connector position of mounting hole respectively relatively, forms many group PBL shear connectors and installs duct; Comprise following characteristics step:
A, according to the structure of steel box-girder and length, segmentation blanking is carried out to PBL shear connector and make PBL shear connector sections, and at the end mantle fiber of described PBL shear connector sections;
B, install in duct and wear installation two sections of PBL shear connector sections often organizing PBL shear connector, left width beam body is avoided in the installation site of described PBL shear connector sections, position while welding reserved between stage casing beam body and right width beam body, the adjacent end portion juxtaposition of described two sections of PBL shear connector sections, fixes with the interim colligation of iron wire;
C, described left width, stage casing and right width beam body carried out assembledly be welded into entirety;
The iron wire of d, dismounting colligation PBL shear connector sections, adopt straight screw sleeve to be connected by adjacent two sections of PBL shear connector sections successively, the PBL shear connector block sections being divided into some sections the most at last connects into entirety.
Further, both sides, described steel box-girder bottom surface form turning successively, described turning lays respectively at described left width beam body and Liang Ti junction, stage casing and right width beam body and Liang Ti junction, described stage casing, a described left side, be connected by turning PBL shear connector sections between PBL shear connector sections with PBL shear connector sections in the beam body of stage casing in right width beam body, the length of turning PBL shear connector sections is less than biography shear spacing, the bending angle of described turning PBL shear connector sections and two ends mantle fiber consistent with described corner angle, at described left width, stage casing and right width beam body are welded into overall rear turning PBL shear connector sections and are just installed into biography shear, straight screw sleeve is used to be connected with both sides PBL shear connector sections.
The invention has the beneficial effects as follows:
Can not only adapt to complicated toughened internal stress structure for the mounting method of PBL shear connector in the steel box-girder of toughened internal stress, can freely adjust PBL shear connector section length and the high feature of flexibility according to design feature in the present invention, also have that technique is simple, efficiency of construction is high, the field operation time is short and construction quality easily reaches the feature of the economic aspects such as related specifications requirement.
Mounting method for PBL shear connector in the steel box-girder of toughened internal stress provided by the invention, solves the difficult problem that the toughened internal stress PBL shear connector installation time is long, efficiency is low, construction quality should not control.Meanwhile, in the steel box-girder that the application study innovatively carried out for this field is used in toughened internal stress, the mounting method of PBL shear connector has more wide promotional value.
Accompanying drawing explanation
Below in conjunction with accompanying drawing to being described further for the mounting method of PBL shear connector in the steel box-girder of toughened internal stress in the present invention.
Fig. 1 is for assembled toughened internal stress steel box-girder (1/2) structural representation.
Fig. 2 be assembled after the structural representation of toughened internal stress steel box-girder.
Fig. 3 be PBL shear connector and straight screw sleeve in conjunction with schematic diagram.
Fig. 4 is the segmentation of PBL shear connector and the scheme of installation that intersects.
Detailed description of the invention
Embodiment
According to Fig. 1, Fig. 2 and Fig. 3, a kind of mounting method for PBL shear connector in the steel box-girder 1 of toughened internal stress, steel box-girder 1 is welded by the three sections of beam bodies being divided into left width beam body 3, stage casing beam body 4 and right width beam body 5 are assembled, multiple spaced biography shears are comprised respectively in left width beam body 3, stage casing beam body 4 and right width beam body 5, often open to pass and spaced apartly on shear be provided with multiple PBL shear connector installing hole, PBL shear connector position of mounting hole respectively relatively, forms many group PBL shear connectors and installs duct;
Comprise the following steps:
A, segmentation blanking is carried out to PBL shear connector make PBL shear connector sections 2 according to the structure of steel box-girder 1, length characteristic, and at the end mantle fiber of PBL shear connector sections 2; In the present invention, PBL shear connector is made up of reinforcing bar.
B, install in duct and wear installation two sections of PBL shear connector sections 2 often organizing PBL shear connector, left width beam body 3 is avoided in the installation site of PBL shear connector sections 2, position while welding reserved between stage casing beam body 4 and right width beam body 5, as shown in Figure 4, the adjacent end portion juxtaposition of two sections of PBL shear connector sections 2, fixes with the interim colligation of iron wire;
C, left width beam body 3, stage casing beam body 4 and right width beam body 5 carried out assembledly be welded into entirety;
The iron wire of d, dismounting colligation PBL shear connector sections 2, adopt straight screw sleeve 6 to be connected by adjacent two sections of PBL shear connector sections 2 successively, the PBL shear connector block sections being divided into some sections the most at last connects into entirety.
Both sides, steel box-girder 1 bottom surface form turning successively, turning lays respectively at left width beam body 3 and beam body 4 junction, stage casing and right width beam body 5 and beam body 4 junction, stage casing, left, be connected by turning PBL shear connector sections 7 between PBL shear connector sections 2 with PBL shear connector sections 2 in stage casing beam body 4 in right width beam body 5, the length of turning PBL shear connector sections 7 is less than biography shear spacing, the bending angle of turning PBL shear connector sections 2 and two ends mantle fiber consistent with corner angle, at left width, stage casing and right width beam body 5 are welded into overall rear turning PBL shear connector sections 7 and are just installed into biography shear, straight screw sleeve 6 is used to be connected with both sides PBL shear connector sections 2.
Of the present inventionly be not limited to above-described embodiment, the technical scheme of each embodiment above-mentioned of the present invention combined crosswise can form new technical scheme each other, and all employings are equal to the technical scheme of replacing and being formed in addition, all drop in the protection domain of application claims.
Claims (2)
1. the mounting method for PBL shear connector in the steel box-girder of toughened internal stress, described steel box-girder is welded by the three sections of beam bodies being divided into left width beam body, stage casing beam body and right width beam body are assembled, multiple spaced biography shears are comprised respectively in described left width beam body, stage casing beam body and right width beam body, often open to pass and spaced apartly on shear be provided with multiple PBL shear connector installing hole, described PBL shear connector position of mounting hole respectively relatively, forms many group PBL shear connectors and installs duct; Comprise following characteristics step:
A, according to the structure of steel box-girder and length, segmentation blanking is carried out to PBL shear connector and make PBL shear connector sections, and at the end mantle fiber of described PBL shear connector sections;
B, install in duct and wear installation two sections of PBL shear connector sections often organizing PBL shear connector, left width beam body is avoided in the installation site of described PBL shear connector sections, position while welding reserved between stage casing beam body and right width beam body, the adjacent end portion juxtaposition of described two sections of PBL shear connector sections, fixes with the interim colligation of iron wire;
C, described left width, stage casing and right width beam body carried out assembledly be welded into entirety;
The iron wire of d, dismounting colligation PBL shear connector sections, adopt straight screw sleeve to be connected by adjacent two sections of PBL shear connector sections successively, the PBL shear connector block sections of some sections connects into entirety the most at last.
2. according to claim 1 for the mounting method of PBL shear connector in the steel box-girder of toughened internal stress, it is characterized in that: both sides, described steel box-girder bottom surface form turning successively, described turning lays respectively at described left width beam body and Liang Ti junction, stage casing and right width beam body and Liang Ti junction, described stage casing, a described left side, be connected by turning PBL shear connector sections between PBL shear connector sections with PBL shear connector sections in the beam body of stage casing in right width beam body, the length of turning PBL shear connector sections is less than biography shear spacing, the bending angle of described turning PBL shear connector sections and two ends mantle fiber consistent with described corner angle, at described left width, stage casing and right width beam body are welded into overall rear turning PBL shear connector sections and are just installed into biography shear, straight screw sleeve is used to be connected with both sides PBL shear connector sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410484866.4A CN104264587B (en) | 2014-09-22 | 2014-09-22 | A kind of installation method for PBL shear connector in the steel case beam of steel reinforced concrete adapter section |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410484866.4A CN104264587B (en) | 2014-09-22 | 2014-09-22 | A kind of installation method for PBL shear connector in the steel case beam of steel reinforced concrete adapter section |
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| CN104264587A true CN104264587A (en) | 2015-01-07 |
| CN104264587B CN104264587B (en) | 2016-05-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937204A (en) * | 2016-05-24 | 2016-09-14 | 安徽省交通建设有限责任公司 | Large-span steel box girder rigidity coordination type composite bridge deck pavement layer structure and construction method thereof |
| CN106638265B (en) * | 2016-12-21 | 2018-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of steel reinforced concrete beam rigid framed structure arch bridge |
| JP2020084547A (en) * | 2018-11-22 | 2020-06-04 | 株式会社ハナミズキ・ブリッジ・プランニング | Steel floor slab pavement structure |
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Cited By (3)
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|---|---|---|---|---|
| CN105937204A (en) * | 2016-05-24 | 2016-09-14 | 安徽省交通建设有限责任公司 | Large-span steel box girder rigidity coordination type composite bridge deck pavement layer structure and construction method thereof |
| CN106638265B (en) * | 2016-12-21 | 2018-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of steel reinforced concrete beam rigid framed structure arch bridge |
| JP2020084547A (en) * | 2018-11-22 | 2020-06-04 | 株式会社ハナミズキ・ブリッジ・プランニング | Steel floor slab pavement structure |
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| CN104264587B (en) | 2016-05-04 |
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