CN104499415A - Main girder structure system of double-layer bridge deck cable-stayed bridge - Google Patents
Main girder structure system of double-layer bridge deck cable-stayed bridge Download PDFInfo
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- CN104499415A CN104499415A CN201410401710.5A CN201410401710A CN104499415A CN 104499415 A CN104499415 A CN 104499415A CN 201410401710 A CN201410401710 A CN 201410401710A CN 104499415 A CN104499415 A CN 104499415A
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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
- E01D12/00—Bridges characterised by a combination of structures not covered as a whole by a single one of groups E01D2/00 - E01D11/00
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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
- E01D6/00—Truss-type bridges
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Abstract
The invention discloses a main girder structure system of a double-layer bridge deck cable-stayed bridge. The structure system comprises a mid-span main girder and a side-span main girder, and is characterized in that the mid-span main girder adopts the combination of a plate truss and a steel truss girder, and the side-span main girder adopts a structure system of a composite truss girder. The structure system can effectively shorten the side-span span to prevent the side-span weight, keeps the appearance consistency of the whole bridge main girder, and has higher promotion values on such aspects as economy, bridge landscape and driving comfort.
Description
Technical field
The present invention relates to the technical field of bridge engineering, specifically a kind of double-layer bridge-floor cable stayed bridge main beam structure system.
Background technology
Long span double-layer bridge-floor cable stayed bridge adopts steel truss form usually, and when main span adopts steel truss girder as stiff girder, the adoptable form of general end bay is: steel truss girder, one-course concrete case beam, superimposed girder truss.
When end bay also adopts steel truss girder, end bay need be increased across footpath, and arrange ballast with in balance across larger deadweight, the steel using amount of steel truss girder is large, and cost is high.When adopting superimposed girder truss scheme, although add concrete slab, its deadweight intensity is still less, still need to increase end bay length with in balance across deadweight, and the steel using amount of superimposed girder truss is higher, thus cause that main bridge gauge mould increases, cost is higher.
Summary of the invention
The object of the invention is to, for the design of double-deck cable stayed bridge provides a kind of novel double-layer bridge-floor cable stayed bridge main beam structure system, significantly reduce steel using amount, realize the reasonability of bridge construction technology, economy, comfortableness and aesthetic property simultaneously.
To achieve these goals, technical scheme of the present invention is as follows: a kind of double-layer bridge-floor cable stayed bridge main beam structure system, is characterized in that: in adopt plate girder Combined steel truss beam across girder, end bay girder adopts composite truss beam.In adopt steel truss and Orthotropic Steel Bridge Deck to weld together completely across girder plate girder Combined steel truss beam; End bay girder forms one by the shaped steel chord member of external wrapping concrete, steel web member and prestressed concrete crossbeam and concrete slab, constitutes composite structural truss system.
This structural system is by component dissimilar for steel rod elements, concrete rod and steel reinforced concrete rod member three kinds, reasonably be used in cable stayed bridge girder truss according to its performance characteristics, reach the object effectively playing respective advantage, significantly reduce steel using amount, material economic indicator is superior.Meanwhile, the compound truss structure of larger deadweight shortens the length of cable stayed bridge end bay effectively, reduces main bridge gauge mould, has very high economic benefit.This structural system can effectively shorten end bay across footpath, avoids ballast on side span, and keeps full-bridge girder outward appearance consistent, all has higher promotional value at aspects such as economy, Bridge Landscape, driving are comfortable.
Accompanying drawing explanation
Fig. 1 is bridge layout figure of the present invention.
Fig. 2 is middle straddle purlin Combined steel truss beam structural representation.
Fig. 3 is end bay composite truss beam structure schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 ~ 3 and embodiment, the invention will be further described.
Certain bridge is double deck road oblique roller bridge, main span 708 meters, and girder adopts plate-purlin Combined steel truss beam, and end bay is 4 × 63 meters, and girder adopts compound truss structure system.(see accompanying drawing 1 ~ 3).
In be made up of steel truss and orthotropic steel bridge deck system across girder, chord member and the steel bridge deck of steel truss weld together completely; End bay girder is made up of (see accompanying drawing 3) the shaped steel chord member of external wrapping concrete, steel web member and prestressed concrete crossbeam, concrete slab.
As shown in Figure 2, upper strata orthotropic steel bridge deck system 1 is comprised across girder in described double deck road oblique roller bridge, orthotropic steel bridge deck system of lower floor 2, steel truss web member 3 and steel truss diagonal web member 4, the upper end of steel truss web member 3 is connected with steel truss upper chord 5, the lower end of steel truss web member 3 is connected with steel truss lower chord 6, the upper end of steel truss diagonal web member 4 is connected with steel truss limit chord member 7, the lower end of steel truss diagonal web member 4 is connected with steel truss lower chord 6, steel truss limit chord member 7 and steel truss upper chord 5 are connected with the steel bridge deck of upper strata orthotropic steel bridge deck system 1 respectively, steel truss lower chord 6 is connected with the steel bridge deck being arranged on orthotropic steel bridge deck system of lower floor 2.
As shown in Figure 3, end bay girder comprises upper strata prestressed concrete crossbeam 8, lower floor's prestressed concrete crossbeam 9, steel web member 10 and steel hound 11, the upper end of steel web member 10 is connected with the shaped steel upper chord 12 of external wrapping concrete, the lower end of steel web member 10 is connected with the shaped steel lower chord 13 of external wrapping concrete, the upper end of steel hound 11 is connected with the section steel edge chord member 14 of external wrapping concrete, the lower end of steel hound 11 is connected with the shaped steel lower chord 13 of external wrapping concrete, the shaped steel upper chord 12 of external wrapping concrete and the section steel edge chord member 14 of external wrapping concrete link into an integrated entity with the concrete slab 15 be arranged on upper strata prestressed concrete crossbeam 8 respectively, the shaped steel lower chord 13 of external wrapping concrete links into an integrated entity with the concrete slab 15 be arranged on lower floor's prestressed concrete crossbeam 9.
When the composite truss beam adopting the present invention to carry, both can obtain with in across the harmonious landscape effect of girder, effectively shorten again end bay across footpath, reduce main bridge gauge mould.Meanwhile, identical across in the situation of footpath, the steel using amount less than superimposed girder truss can be obtained, reduce construction costs further.
Claims (5)
1. a double-layer bridge-floor cable stayed bridge main beam structure system, it mainly comprise in across girder and end bay girder, it is characterized in that: in adopt plate girder Combined steel truss beam across girder, end bay girder adopts composite truss beam.
2. double-layer bridge-floor cable stayed bridge main beam structure system according to claim 1, is characterized in that: in adopt steel truss and the complete all-welded plate girder Combined steel truss beam of Orthotropic Steel Bridge Deck across girder; End bay girder forms one by the shaped steel chord member of external wrapping concrete, steel web member and prestressed concrete crossbeam and concrete slab, constitutes composite structural truss system.
3. double-layer bridge-floor cable stayed bridge main beam structure system according to claim 2, upper strata orthotropic steel bridge deck system is comprised across girder in it is characterized in that, orthotropic steel bridge deck system of lower floor, steel truss web member and steel truss diagonal web member, the upper end of steel truss web member is connected with steel truss upper chord, the lower end of steel truss web member is connected with steel truss lower chord, the upper end of steel truss diagonal web member is connected with steel truss limit chord member, the lower end of steel truss diagonal web member is connected with steel truss lower chord, steel truss limit chord member and steel truss upper chord are connected with the steel bridge deck of upper strata orthotropic steel bridge deck system respectively, steel truss lower chord is connected with the steel bridge deck being arranged on orthotropic steel bridge deck system of lower floor.
4. double-layer bridge-floor cable stayed bridge main beam structure system according to claim 2, it is characterized in that end bay girder comprises upper strata prestressed concrete crossbeam, lower floor's prestressed concrete crossbeam, steel web member and steel hound, the upper end of steel web member is connected with the shaped steel upper chord of external wrapping concrete, the lower end of steel web member is connected with the shaped steel lower chord of external wrapping concrete, the upper end of steel hound is connected with the section steel edge chord member of external wrapping concrete, the lower end of steel hound is connected with the shaped steel lower chord of external wrapping concrete, the shaped steel upper chord of external wrapping concrete and the section steel edge chord member of external wrapping concrete link into an integrated entity with the concrete slab be arranged on the prestressed concrete crossbeam of upper strata respectively, the shaped steel lower chord of external wrapping concrete then links into an integrated entity with the concrete slab be arranged on lower floor's prestressed concrete crossbeam.
5. double-layer bridge-floor cable stayed bridge main beam structure system according to claim 2, it is characterized in that the purlin formula of its trussed construction adopts Hua Lunshi, N shape purlin or triangle purlin, cross section is rectangle or inverted trapezoidal formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410401710.5A CN104499415A (en) | 2014-08-15 | 2014-08-15 | Main girder structure system of double-layer bridge deck cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410401710.5A CN104499415A (en) | 2014-08-15 | 2014-08-15 | Main girder structure system of double-layer bridge deck cable-stayed bridge |
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| CN104499415A true CN104499415A (en) | 2015-04-08 |
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| CN201410401710.5A Pending CN104499415A (en) | 2014-08-15 | 2014-08-15 | Main girder structure system of double-layer bridge deck cable-stayed bridge |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638278A (en) * | 2017-02-26 | 2017-05-10 | 西南交通大学 | Pneumatic structure for improving flutter performance of dual-layer road steel truss suspension bridge |
| CN108797319A (en) * | 2018-07-02 | 2018-11-13 | 中铁第四勘察设计院集团有限公司 | It is that long the United Nations General Assembly's stroke rail-road is layered bridge pier beam integrated structure that one kind, which being suitable for both sides, |
| CN109083023A (en) * | 2018-09-06 | 2018-12-25 | 重庆交通大学 | Using the continuous rigid frame bridge and its construction method of stiff skeleton |
| CN109306658A (en) * | 2018-10-25 | 2019-02-05 | 中信国安建工集团有限公司 | A kind of road steelframe bridge and construction method |
| CN109898402A (en) * | 2019-03-20 | 2019-06-18 | 中铁大桥勘测设计院集团有限公司 | A kind of steel truss mixing girder stayed-cable bridge with hybrid juction construction |
| CN110607739A (en) * | 2019-09-12 | 2019-12-24 | 青岛度丘新能源技术有限公司 | Cable bridge |
| CN110777680A (en) * | 2019-11-13 | 2020-02-11 | 广西恒正建设工程质量检测有限公司 | Method for reinforcing, lifting and transforming beam bridge |
| CN111172889A (en) * | 2020-02-26 | 2020-05-19 | 中交二公局第二工程有限公司 | Assembling method for plate girder combination beam of suspension bridge |
| CN112900232A (en) * | 2021-01-19 | 2021-06-04 | 同济大学 | High-speed magnetic suspension large-span combined steel truss arch bridge |
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| EP0685018B1 (en) * | 1993-02-16 | 1998-10-14 | Anders GRANSTRÖM | Bridge structure |
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| CN101158143A (en) * | 2007-11-23 | 2008-04-09 | 清华大学 | Double-deck bridge floor combined trussed girder bridge |
| CN201317908Y (en) * | 2007-12-27 | 2009-09-30 | 上海市政工程设计研究总院 | Double deck cable stayed bridge of separation type |
| CN101591886A (en) * | 2009-06-29 | 2009-12-02 | 南京工业大学 | Composite material truss bridge |
| CN103374878A (en) * | 2012-04-24 | 2013-10-30 | 上海市政工程设计研究总院（集团）有限公司 | Cable-stayed bridge cable force transfer structure of steel truss with reversed trapezoid section |
| CN103758023A (en) * | 2014-01-23 | 2014-04-30 | 长沙理工大学 | Prestressed concrete and steel truss mixed continuous rigid frame bridge and construction method thereof |
| CN204266110U (en) * | 2014-08-15 | 2015-04-15 | 上海市政工程设计研究总院（集团）有限公司 | A kind of double-layer bridge-floor cable stayed bridge main beam structure system |
-
2014
- 2014-08-15 CN CN201410401710.5A patent/CN104499415A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0685018B1 (en) * | 1993-02-16 | 1998-10-14 | Anders GRANSTRÖM | Bridge structure |
| CN1730828A (en) * | 2005-08-23 | 2006-02-08 | 中铁大桥勘测设计院有限公司 | Double deck bridge structure |
| CN101158143A (en) * | 2007-11-23 | 2008-04-09 | 清华大学 | Double-deck bridge floor combined trussed girder bridge |
| CN201317908Y (en) * | 2007-12-27 | 2009-09-30 | 上海市政工程设计研究总院 | Double deck cable stayed bridge of separation type |
| CN101591886A (en) * | 2009-06-29 | 2009-12-02 | 南京工业大学 | Composite material truss bridge |
| CN103374878A (en) * | 2012-04-24 | 2013-10-30 | 上海市政工程设计研究总院（集团）有限公司 | Cable-stayed bridge cable force transfer structure of steel truss with reversed trapezoid section |
| CN103758023A (en) * | 2014-01-23 | 2014-04-30 | 长沙理工大学 | Prestressed concrete and steel truss mixed continuous rigid frame bridge and construction method thereof |
| CN204266110U (en) * | 2014-08-15 | 2015-04-15 | 上海市政工程设计研究总院（集团）有限公司 | A kind of double-layer bridge-floor cable stayed bridge main beam structure system |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106638278A (en) * | 2017-02-26 | 2017-05-10 | 西南交通大学 | Pneumatic structure for improving flutter performance of dual-layer road steel truss suspension bridge |
| CN106638278B (en) * | 2017-02-26 | 2018-04-13 | 西南交通大学 | A kind of pneumatic construction for improving double-deck highway steel trusses suspension bridge Flutter Performance |
| CN108797319A (en) * | 2018-07-02 | 2018-11-13 | 中铁第四勘察设计院集团有限公司 | It is that long the United Nations General Assembly's stroke rail-road is layered bridge pier beam integrated structure that one kind, which being suitable for both sides, |
| CN109083023A (en) * | 2018-09-06 | 2018-12-25 | 重庆交通大学 | Using the continuous rigid frame bridge and its construction method of stiff skeleton |
| CN109306658A (en) * | 2018-10-25 | 2019-02-05 | 中信国安建工集团有限公司 | A kind of road steelframe bridge and construction method |
| CN109898402A (en) * | 2019-03-20 | 2019-06-18 | 中铁大桥勘测设计院集团有限公司 | A kind of steel truss mixing girder stayed-cable bridge with hybrid juction construction |
| CN110607739A (en) * | 2019-09-12 | 2019-12-24 | 青岛度丘新能源技术有限公司 | Cable bridge |
| CN110777680A (en) * | 2019-11-13 | 2020-02-11 | 广西恒正建设工程质量检测有限公司 | Method for reinforcing, lifting and transforming beam bridge |
| CN111172889A (en) * | 2020-02-26 | 2020-05-19 | 中交二公局第二工程有限公司 | Assembling method for plate girder combination beam of suspension bridge |
| CN112900232A (en) * | 2021-01-19 | 2021-06-04 | 同济大学 | High-speed magnetic suspension large-span combined steel truss arch bridge |
| CN112900232B (en) * | 2021-01-19 | 2022-06-21 | 同济大学 | High-speed magnetic suspension large-span combined steel truss arch bridge |
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Application publication date: 20150408 |