CN101768916A - Lower flange improved corrugated steel web plate composite box girder and construction method thereof - Google Patents
Lower flange improved corrugated steel web plate composite box girder and construction method thereof Download PDFInfo
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- CN101768916A CN101768916A CN201010100601A CN201010100601A CN101768916A CN 101768916 A CN101768916 A CN 101768916A CN 201010100601 A CN201010100601 A CN 201010100601A CN 201010100601 A CN201010100601 A CN 201010100601A CN 101768916 A CN101768916 A CN 101768916A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 111
- 239000010959 steel Substances 0.000 title claims abstract description 111
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 title abstract description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 210000002435 tendon Anatomy 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
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Abstract
The invention discloses a lower flange improved corrugated steel web plate composite box girder and a construction method thereof, which belong to the technical field of bridge structures. The box girder consists of an upper flange concrete slab, a corrugated steel web plate, a lower flange concrete slab, an upper flange steel plate, a lower flange steel plate and male pin connecting pieces, wherein a steel bar mesh piece and a prestressed tendon corrugated pipe are arranged in the lower flange concrete slab. The lower flange concrete slab is connected with the lower flange steel plate and the corrugated steel web plate to form a whole body through the male pin connecting pieces which are welded above the lower flange steel plate and on the lateral surface of the corrugated steel web plate. By adopting the structure, the lower flange improved corrugated steel web plate composite box girder can solve the problems that the on-site amount of work and the construction difficulty are large for casting the lower flange concrete slab of the conventional corrugated steel web plate composite box girder, the construction quality is difficult to guarantee and the like under the premise of almost not increasing the steel consumption, gives full play to the tensile property of the steel plates and the restriction to concrete, enhances the bearing capacity and the cracking resistance of the structure, and improves the durability of the structure. The lower flange improved corrugated steel web plate composite box girder is simple in structure, reasonable in stressing and quick and convenient in construction, and has good technical and economic benefits.
Description
Technical field
The present invention relates to a kind of lower flange improved corrugated steel web plate composite box girder that can be applicable to highway bridge and railroad bridge; Belong to the bridge construction technical field.
Background technology
Traditional corrugated steel web plate composite box girder, as shown in Figure 1, it is made up of top flange concrete slab (1), bottom flange concrete slab (2) and two Wavelike steel webplates (3), and each limb Wavelike steel webplate and top flange steel plate (4) and bottom flange steel plate (6) are transported to the job site installing and locating after factory's welding.When the bottom flange concrete slab is built, the all round victory scaffold need be set up with support shuttering in the scene, there are problems such as field operation and difficulty of construction are bigger, the joint portion of bottom flange concrete slab and bottom flange steel plate is because casting space is narrow and small simultaneously, the concrete pouring difficult quality guarantee influences the stress performance of joint portion.On the other hand, the bottom flange concrete slab hangs on the Wavelike steel webplate below by peg connector (5), has the hidden danger of relative separation under the deadweight effect, ftractures too early easily under the positive bending moment effect, thereby reduce the bearing capacity and the rigidity of structure, influence durability of structures.These problems have caused certain difficulty all for applying of this class formation.
Summary of the invention
The purpose of this invention is to provide a kind ofly with respect to traditional corrugated steel web plate composite box girder, field operation amount and difficulty of construction are less, the concrete pouring quality is easy to guarantee, structural bearing capacity, rigidity and cracking resistance is higher, economic performance is more excellent lower flange improved corrugated steel web plate composite box girder.
Technical scheme of the present invention is as follows:
A kind of lower flange improved corrugated steel web plate composite box girder is characterized in that: be made up of top flange concrete slab, Wavelike steel webplate, bottom flange concrete slab, top flange steel plate, bottom flange steel plate and peg connector.In the concrete slab of described bottom flange, be provided with reinforced mesh and presstressed reinforcing steel bellows.Peg connector and bottom flange steel plate and the Wavelike steel webplate of bottom flange concrete slab by being welded in bottom flange steel plate top and Wavelike steel webplate side connects into integral body; The top flange concrete slab connects into integral body by peg connector and the top flange steel plate that is welded in steel plate top, top flange.
Technical characterictic of the present invention also is: can apply prestressing force to top flange concrete slab and bottom flange concrete slab respectively by tensioned prestressing bar, be used for continuous girder bridge.
The present invention has the following advantages with respect to prior art:
(1) by the bottom flange concrete slab is placed on the steel plate of bottom flange, the bottom flange steel plate can provide reliable template to support for the cast of bottom flange concrete slab, thereby avoid the scene to set up all round victory scaffold, reduce concrete wet trade workload and difficulty of construction, shorten construction period, accelerating construction progress.Whole construction course can be in traffic under the bridge cut-off, quick construction, overall economic efficiency is good, is the very big improvement to traditional corrugated steel web plate composite box girder.(2) bottom wing balsh and concrete joint portion simple structure, the concrete pouring space is big, and casting quality is easy to guarantee that the stress performance of joint portion is effectively improved.(3) the bottom flange steel plate places the concrete slab outside, bottom flange, and is stressed more reasonable.The bottom flange steel plate not only self participation structure is stressed more fully, performance tensile property good characteristics provide the part constraint to the bottom flange concrete slab simultaneously, thereby improve bearing capacity, rigidity and the cracking resistance of structure, improve durability of structures.(4) the bottom flange concrete slab has reduced the form work engineering and the concrete wet trade workload of top flange concrete slab for building of top flange concrete slab provides support.(5) lower flange improved corrugated steel web plate composite box girder is compared traditional corrugated steel web plate composite box girder when aspects such as stress performance, workability significantly improve, and steel using amount does not almost increase, and economic performance is more excellent.
Description of drawings
Fig. 1 is traditional corrugated steel web plate composite box girder typical section figure.
Fig. 2 is lower flange improved corrugated steel web plate composite box girder typical section figure.
Fig. 3 is a steel work factory process part schematic diagram.
Fig. 4 is a bottom flange concrete construction schematic diagram
Fig. 5 is the reinforced mesh schematic diagram.
Fig. 6 is lower flange improved corrugated steel web plate composite box girder construction finishing back schematic diagram.
Among the figure: the concrete slab of 1-top flange; 2-tradition corrugated steel web plate composite box girder bottom flange concrete slab; The 3-Wavelike steel webplate; 4-top flange steel plate; The 5-peg; 6-bottom flange steel plate; 7-lower flange improved corrugated steel web plate composite box girder bottom flange concrete slab; The 8-template; The 9-reinforced mesh; 10-presstressed reinforcing steel bellows; 11-presstressed reinforcing steel ground tackle; The 12-presstressed reinforcing steel.
The specific embodiment
Below in conjunction with accompanying drawing, structure of the present invention, work progress are further described.
The invention provides a kind ofly with respect to traditional corrugated steel web plate composite box girder, field operation amount and difficulty of construction are less, the concrete pouring quality is easy to guarantee, structural bearing capacity, rigidity and cracking resistance is higher, economic performance is more excellent lower flange improved corrugated steel web plate composite box girder.As Fig. 2～shown in Figure 6, the case beam is made up of top flange concrete slab 1, Wavelike steel webplate 3, bottom flange concrete slab 7, top flange steel plate 4, bottom flange steel plate 6 and peg connector 5.In described bottom flange concrete slab 7, be provided with reinforced mesh 9 and presstressed reinforcing steel bellows 10; Equally, also be provided with reinforcing bar and presstressed reinforcing steel bellows 10 in the top flange concrete slab 1, so that the laying of prestressed reinforcement in the top flange concrete slab 1.Peg connector 5 and bottom flange steel plate 6 and the Wavelike steel webplate 3 of bottom flange concrete slab 7 by being welded in bottom flange steel plate 6 tops and Wavelike steel webplate 3 sides connects into integral body; Top flange concrete slab 1 connects into integral body by peg connector 5 and the top flange steel plate 4 that is welded in top flange steel plate 4 tops.Can apply prestressing force to top flange concrete slab 1 and bottom flange concrete slab 7 respectively by tensioned prestressing bar 12.
Working procedure of the present invention is:
The working procedure of lower flange improved corrugated steel web plate composite box girder of the present invention is poured into a mould and is applied prestressing force four parts and formed by steel work processing and splicing, the cast of bottom flange concrete slab, top flange concrete slab.Wavelike steel webplate 3 and top flange steel plate 4, bottom flange steel plate 6 are welded together 5 (as shown in Figure 3) of melting welding peg respectively in factory in above the top flange steel plate 4, above the bottom flange steel plate 6 and Wavelike steel webplate 3 sides.After the steel member is transported to the job site, carries out bottom flange concrete slab 7 and make (is that example describes with Fig. 4).Its preparation method is as follows: with bottom flange steel plate 6 serves as to support to set up template 8, arrange the reinforced mesh 9 (as shown in Figure 5) of some at bottom flange concrete slab 7 middle parts, and pre-buried prestressing force bellows 10, fluid concrete forms bottom flange concrete slab 7 as shown in Figure 6 then.After treating that bottom flange concrete slab 7 reaches certain intensity, for the formwork of top flange concrete slab 1 provides interim support, or the interim angle steel of connection is used for the template support between top flange steel plate 4, prop up top flange concrete blinding, assembling reinforcement, pre-buried prestressing force bellows, concreting, formed top flange concrete slab 1 as shown in Figure 6.At last, apply prestressing force, form modified corrugated steel web plate composite box girder as shown in Figure 6 at last by 12 pairs of upper and lower edges of a wing of tensioned prestressing bar concrete slab 1,7.
Claims (5)
1. a lower flange improved corrugated steel web plate composite box girder is characterized in that: be made up of top flange concrete slab (1), Wavelike steel webplate (3), bottom flange concrete slab (7), top flange steel plate (4), bottom flange steel plate (6) and peg connector (5); Wavelike steel webplate (3) is welded to connect with top flange steel plate (4) and bottom flange steel plate (6); Peg connector (5) is welded in bottom flange steel plate (6) top, Wavelike steel webplate (3) side and top flange steel plate (4) top; Bottom flange steel plate (6) is positioned at the below of bottom flange concrete slab (7).
2. lower flange improved corrugated steel web plate composite box girder according to claim 1 is characterized in that: be provided with reinforced mesh (9) and presstressed reinforcing steel bellows (10) in described bottom flange concrete slab (7).
3. lower flange improved corrugated steel web plate composite box girder according to claim 2 is characterized in that: peg connector (5) and bottom flange steel plate (6) and the Wavelike steel webplate (3) of bottom flange concrete slab (7) by being welded in bottom flange steel plate (6) top and Wavelike steel webplate (3) side connects into integral body; Top flange concrete slab (1) connects into integral body by peg connector (5) and the top flange steel plate (4) that is welded in top flange steel plate (4) top.
4. lower flange improved corrugated steel web plate composite box girder according to claim 3, it is characterized in that: be provided with presstressed reinforcing steel (12) in the described presstressed reinforcing steel bellows (10), respectively top flange concrete slab (1) and bottom flange concrete slab (7) applied prestressing force by tensioned prestressing bar (12).
5. the job practices of a lower flange improved corrugated steel web plate composite box girder, it is characterized in that the working procedure of lower flange improved corrugated steel web plate composite box girder is poured into a mould and applied prestressing force four parts and formed by steel work processing and splicing, bottom flange concrete slab (7) cast, top flange concrete slab (1);
A. in factory Wavelike steel webplate (3) and top flange steel plate (4), bottom flange steel plate (6) are welded together, in top flange steel plate (4) top, bottom flange steel plate (6) top and Wavelike steel webplate (3) side melting welding peg (5) respectively;
B. after the steel member being transported to the job site, carrying out bottom flange concrete slab (7) makes: with bottom flange steel plate (6) serves as to support to set up template (8), arrange the reinforced mesh (9) of some at bottom flange concrete slab (7) middle part, and pre-buried prestressing force bellows (10), fluid concrete forms bottom flange concrete slab (7) then;
C. after treating that bottom flange concrete slab (7) reaches certain intensity, for the formwork of top flange concrete slab (1) provides interim support, or the interim angle steel of connection is used for the template support between top flange steel plate (4), prop up top flange concrete blinding, assembling reinforcement, pre-buried prestressing force bellows, concreting, form top flange concrete slab (1);
D. by tensioned prestressing bar (12) top flange concrete slab (1), bottom flange concrete slab (7) are applied prestressing force, form described modified corrugated steel web plate composite box girder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010100601A CN101768916A (en) | 2010-01-22 | 2010-01-22 | Lower flange improved corrugated steel web plate composite box girder and construction method thereof |
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| CN201010100601A CN101768916A (en) | 2010-01-22 | 2010-01-22 | Lower flange improved corrugated steel web plate composite box girder and construction method thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733308A (en) * | 2012-06-19 | 2012-10-17 | 中铁八局集团昆明铁路建设有限公司 | Method for connecting steel guide girder with box girder |
| CN102817325A (en) * | 2012-09-13 | 2012-12-12 | 永升建设集团有限公司 | Construction method of simply supported-continuous switching system of negative moment beam prestressed precast box beam |
| CN102828467A (en) * | 2012-09-20 | 2012-12-19 | 长安大学 | Corrugated steel web-based steel-wood combined box girder |
| CN102888812A (en) * | 2012-10-26 | 2013-01-23 | 长安大学 | Wood and concrete combined type box beam |
| CN103422436A (en) * | 2013-07-18 | 2013-12-04 | 杭州博数土木工程技术有限公司 | Construction method for utilizing corrugated steel webs to bear construction load |
| CN103498527A (en) * | 2013-07-18 | 2014-01-08 | 杭州博数土木工程技术有限公司 | Corrugated steel web post-welding contraction pre-stress combined structure construction process |
| CN103741584A (en) * | 2013-12-31 | 2014-04-23 | 清华大学 | Lower flange anti-pulling composite box girder with corrugated steel webs and construction method |
| CN103882797A (en) * | 2014-04-08 | 2014-06-25 | 西安公路研究院 | Composite corrugated steel web box girder and construction technology thereof |
| CN104562916A (en) * | 2014-08-25 | 2015-04-29 | 上海市政工程设计研究总院（集团）有限公司 | Node structure for connecting corrugated steel web and concrete |
| CN105064195A (en) * | 2015-07-29 | 2015-11-18 | 广西交通科学研究院 | Internal prestress steel and concrete combined simply supported girder bridge of prefabricated and assembled fish-bellied corrugated steel web and construction method thereof |
| CN105178170A (en) * | 2015-07-23 | 2015-12-23 | 苏交科集团股份有限公司 | Bottom plate connecting structure of corrugated steel web |
| CN106087693A (en) * | 2016-08-01 | 2016-11-09 | 中国矿业大学(北京) | A kind of double-T shaped Wavelike steel webplate profiled sheet combination beam and construction method thereof |
| CN106400666A (en) * | 2016-09-12 | 2017-02-15 | 东南大学 | Prestressed concrete-corrugated web steel box connecting beam hybrid beam structural system |
| CN106400668A (en) * | 2016-12-02 | 2017-02-15 | 中铁十四局集团第二工程有限公司 | Combined shear connector for corrugated steel web and corrugated steel base plate and construction method |
| CN107558351A (en) * | 2017-09-30 | 2018-01-09 | 深圳市市政设计研究院有限公司 | Abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method |
| CN107938494A (en) * | 2017-11-17 | 2018-04-20 | 上海市城市建设设计研究总院（集团）有限公司 | Easy to field erected across interior steel tabula board member and its installation method and combination beam |
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2010
- 2010-01-22 CN CN201010100601A patent/CN101768916A/en active Pending
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733308B (en) * | 2012-06-19 | 2014-03-26 | 中铁八局集团昆明铁路建设有限公司 | Method for connecting steel guide girder with box girder |
| CN102733308A (en) * | 2012-06-19 | 2012-10-17 | 中铁八局集团昆明铁路建设有限公司 | Method for connecting steel guide girder with box girder |
| CN102817325B (en) * | 2012-09-13 | 2015-05-13 | 永升建设集团有限公司 | Construction method of simply supported-continuous switching system of negative moment beam prestressed precast box beam |
| CN102817325A (en) * | 2012-09-13 | 2012-12-12 | 永升建设集团有限公司 | Construction method of simply supported-continuous switching system of negative moment beam prestressed precast box beam |
| CN102828467A (en) * | 2012-09-20 | 2012-12-19 | 长安大学 | Corrugated steel web-based steel-wood combined box girder |
| CN102828467B (en) * | 2012-09-20 | 2014-06-11 | 长安大学 | Corrugated steel web-based steel-wood combined box girder |
| CN102888812A (en) * | 2012-10-26 | 2013-01-23 | 长安大学 | Wood and concrete combined type box beam |
| CN102888812B (en) * | 2012-10-26 | 2014-07-09 | 长安大学 | Wood and concrete combined type box beam |
| CN103422436A (en) * | 2013-07-18 | 2013-12-04 | 杭州博数土木工程技术有限公司 | Construction method for utilizing corrugated steel webs to bear construction load |
| CN103498527A (en) * | 2013-07-18 | 2014-01-08 | 杭州博数土木工程技术有限公司 | Corrugated steel web post-welding contraction pre-stress combined structure construction process |
| CN103498527B (en) * | 2013-07-18 | 2015-10-14 | 浙江中隧桥波形钢腹板有限公司 | After Wavelike steel webplate, prestressed combined structure construction technology is shunk in weldering |
| CN103741584A (en) * | 2013-12-31 | 2014-04-23 | 清华大学 | Lower flange anti-pulling composite box girder with corrugated steel webs and construction method |
| CN103882797B (en) * | 2014-04-08 | 2015-11-04 | 西安公路研究院 | A kind of corrugated steel web plate composite box girder and construction technology thereof |
| CN103882797A (en) * | 2014-04-08 | 2014-06-25 | 西安公路研究院 | Composite corrugated steel web box girder and construction technology thereof |
| CN104562916A (en) * | 2014-08-25 | 2015-04-29 | 上海市政工程设计研究总院（集团）有限公司 | Node structure for connecting corrugated steel web and concrete |
| CN105178170A (en) * | 2015-07-23 | 2015-12-23 | 苏交科集团股份有限公司 | Bottom plate connecting structure of corrugated steel web |
| CN105064195A (en) * | 2015-07-29 | 2015-11-18 | 广西交通科学研究院 | Internal prestress steel and concrete combined simply supported girder bridge of prefabricated and assembled fish-bellied corrugated steel web and construction method thereof |
| CN105064195B (en) * | 2015-07-29 | 2017-07-11 | 广西交通科学研究院 | The fish belly Wavelike steel webplate prestressing with bond steel reinforced concrete combination simply supported girder bridge and its construction method of precast assembly |
| CN106087693B (en) * | 2016-08-01 | 2018-07-13 | 中国矿业大学(北京) | A kind of double-T shaped Wavelike steel webplate-profiled sheet combination beam and its construction method |
| CN106087693A (en) * | 2016-08-01 | 2016-11-09 | 中国矿业大学(北京) | A kind of double-T shaped Wavelike steel webplate profiled sheet combination beam and construction method thereof |
| CN106400666A (en) * | 2016-09-12 | 2017-02-15 | 东南大学 | Prestressed concrete-corrugated web steel box connecting beam hybrid beam structural system |
| CN106400668A (en) * | 2016-12-02 | 2017-02-15 | 中铁十四局集团第二工程有限公司 | Combined shear connector for corrugated steel web and corrugated steel base plate and construction method |
| CN106400668B (en) * | 2016-12-02 | 2018-01-30 | 中铁十四局集团第二工程有限公司 | A kind of combined Wavelike steel webplate bottom plate Shear connection key and construction method |
| CN107558351A (en) * | 2017-09-30 | 2018-01-09 | 深圳市市政设计研究院有限公司 | Abdomen bag bottom is trapezoidal（Waveform）Steel plate combination box beam and its construction method |
| CN109594461A (en) * | 2017-09-30 | 2019-04-09 | 郑州市交通规划勘察设计研究院 | A kind of assembly steel-concrete combination beam and its forming method |
| CN109594461B (en) * | 2017-09-30 | 2024-02-23 | 郑州市交通规划勘察设计研究院 | Assembled steel concrete composite beam and forming method thereof |
| CN107938494A (en) * | 2017-11-17 | 2018-04-20 | 上海市城市建设设计研究总院（集团）有限公司 | Easy to field erected across interior steel tabula board member and its installation method and combination beam |
| CN107938494B (en) * | 2017-11-17 | 2023-09-29 | 上海市城市建设设计研究总院（集团）有限公司 | Inner-crossing steel diaphragm plate component convenient for field installation, installation method thereof and combined beam |
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Open date: 20100707 |