CN103061242B - A kind of simple T beam bridge with sound barrier - Google Patents
A kind of simple T beam bridge with sound barrier Download PDFInfo
- Publication number
- CN103061242B CN103061242B CN201310008011.XA CN201310008011A CN103061242B CN 103061242 B CN103061242 B CN 103061242B CN 201310008011 A CN201310008011 A CN 201310008011A CN 103061242 B CN103061242 B CN 103061242B
- Authority
- CN
- China
- Prior art keywords
- girders
- bridge
- sound barrier
- deck
- situ
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to railroad bridge technical field, specifically disclose a kind of simple T beam bridge with sound barrier, comprise multiple Simple T-Girders, Simple T-Girders is joined end to end by multi-disc Simple T-Girders unit and forms, each Simple T-Girders wets joint concrete lateral connection together by diaphragm, the outside of the Simple T-Girders of both sides is provided with concrete cast-in-situ bridge deck, the upper surface of each Simple T-Girders, the upper surface of concrete junction and the upper surface of concrete cast-in-situ bridge deck form an integrated deck, and integrated deck plate is provided with horizontal presstressed reinforcing steel, the outside of concrete cast-in-situ bridge deck is provided with noise barrier stand column basis, noise barrier stand column basis place is provided with noise barrier stand column, sound barrier is provided with between two adjacent upright posts.The present invention is while raising railroad bridge performance, and railroad bridge is met arrange the requirement of sound barrier by integrated deck, sound barrier absorbs sound to the noise produced in train travelling process or insulates against sound, and decreases the impact of train on resident living near it.
Description
Technical field
The present invention relates to railroad bridge technical field, particularly relate to a kind of simple T beam bridge with sound barrier.
Background technology
What adopt greatly in China railways bridge is Simple T-Girders structure, and a Simple T-Girders is formed by multi-disc Simple T-Girders unit combination, and generally single-track railway bridge is made up of two Simple T-Girders, and dual-line railway bridge is made up of four Simple T-Girders.Above-mentioned this Simple T-Girders monolithic beam volume is relatively little, does not need large-scale transport and setting up girder, can pass through existing railway line long distance transportation, therefore have more maneuverability.
Sound barrier is the facility be arranged between sound source and recipient, Acoustic Wave Propagation is made to have a significant additional attenuation, thus the influence of noise weakened in the certain area at recipient place, in railway territory, sound barrier is mainly used for weakening the noise that train produces.
China's Speed 200 km/h and following mixed passenger and freight railway are widely used Simple T-Girders structure, span comprises 32m, 24m, 20m, 16m and 12m, its structure types is post-tensioned prestressing concrete beam, and the sidewalk of Simple T-Girders all adopts angle bar frame scheme, the load of sound barrier is not considered in this structure design, and angle bar frame is not easy to sound barrier is installed, the requirement that sound barrier is set on bridge both sides can not be met.
Summary of the invention
(1) technical problem that will solve
The object of this invention is to provide a kind of simple T beam bridge with sound barrier, do not consider the load of sound barrier with the Simple T-Girders overcoming prior art in the design, and angle bar frame is not easy to sound barrier is installed, thus be not suitable for the problem that sound barrier is set.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of simple T beam bridge with sound barrier, comprise multi-disc Simple T-Girders, described Simple T-Girders is joined end to end by multiple Simple T-Girders unit and forms, and the junction of each Simple T-Girders unit is all positioned on bridge pier, each Simple T-Girders wets joint concrete lateral connection together by diaphragm, the outside of the Simple T-Girders of both sides is provided with concrete cast-in-situ bridge deck, the upper surface of described each Simple T-Girders, the upper surface of concrete junction and the upper surface of concrete cast-in-situ bridge deck form an integrated deck, and described integrated deck plate is provided with horizontal presstressed reinforcing steel, the outside of described concrete cast-in-situ bridge deck is provided with noise barrier stand column basis, and described noise barrier stand column basis place is provided with noise barrier stand column, is provided with sound barrier between two adjacent upright posts.
Preferably, described Simple T-Girders is divided into side bar and central sill two kinds, and described side bar is the Simple T-Girders of both sides, and described central sill is the Simple T-Girders between two panels side bar; One section of platform is stretched out in the outside of described side bar, and the height of described platform is lower than the height of Simple T-Girders, and the superimposed overlap joint of described concrete cast-in-situ bridge deck on the platform.
Preferably, the quantity of described Simple T-Girders is two panels, and two panels Simple T-Girders is side bar, and two panels side bar composition single-line railway bridge.
Or the quantity of described Simple T-Girders is four, wherein outside two panels is side bar, and in the middle of two panels is central sill, and two panels side bar and two panels central sill composition double-line railway bridge.
Preferably, described Simple T-Girders is precast beam.
Preferably, the middle part of described concrete cast-in-situ bridge deck is provided with gear Zha Qiang, and the distance between two gear tiny fragments of stone, coal, etc. walls meets the requirement of the large machine maintenance of circuit, is sidewalk between described gear Zha Qiang and sound barrier.
Preferably, the sidewalk of the concrete cast-in-situ bridge deck of each Simple T-Girders unit junction is local widening structure, is used as refuge platform.
Preferably, described local widening structure place is provided with and checks ladder, and the top of described inspection ladder is provided with cover plate.
Preferably, described local widening structure place is reserved with opening, and described opening part is provided with contact net column, and described contact net column passes concrete cast-in-situ bridge deck by opening.
Preferably, the weight of a described Simple T-Girders unit is less than 148 tons.
(3) beneficial effect
Simple T beam bridge of the present invention adopts monolithic bridge deck structure, and integrated deck is provided with transversely prestressed bars, enhance the globality of bridge floor, structural safety is stablized, decrease the maintenance of bridge floor and the workload of maintenance, the monolithic weight of Simple T-Girders unit meets concentration pre-casting and railway transportation requirement, be conducive to ensureing construction quality and mobilization, bridge floor arranges the requirement meeting large machine maintenance, for the large machine maintenance of circuit on bridge provides condition, the present invention is while raising railroad bridge performance, railroad bridge is met arrange the requirement of sound barrier by integrated deck, sound barrier absorbs sound to the noise produced in train travelling process or insulates against sound, decrease the impact of train on resident living near it.
Accompanying drawing explanation
Longitudinal view that Fig. 1 is the simple T beam bridge of the band sound barrier of the embodiment of the present invention when being single-line railway bridge;
Longitudinal view that Fig. 2 is the simple T beam bridge of the band sound barrier of the embodiment of the present invention when being double-line railway bridge;
Fig. 3 is the longitudinal view in local of the side bar of the simple T beam bridge of the band sound barrier of the embodiment of the present invention;
Fig. 4 is the longitudinal view in local of the central sill of the simple T beam bridge of the band sound barrier of the embodiment of the present invention;
Fig. 5 is that the simple T beam bridge of the band sound barrier of the embodiment of the present invention is single-line railway bridge and is positioned at the longitudinal direction figure on bridge pier;
Fig. 6 is the partial top view of the local widening part of the simple T beam bridge of the band sound barrier of the embodiment of the present invention.
In figure, 11: side bar; 12: central sill; 2: concrete junction; 3: platform; 4: concrete cast-in-situ bridge floor version; 5: noise barrier stand column basis; 6: sound barrier; 7: gear Zha Qiang; 8: transversely prestressed bars; 9: cable channel; 10: local widening structure; 101: check ladder; 102: cover plate; 103: contact net column; 20: bridge pier.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail.
Following examples for illustration of the present invention, but can not be used for limiting the scope of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " longitudinal direction ", " transverse direction ", " on ", " in ", " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Embodiment 1
As shown in Fig. 1,5,6, the simple T beam bridge of the band sound barrier of the present embodiment is single-line railway bridge, comprises two panels Simple T-Girders, and Simple T-Girders is precast beam.
Every sheet Simple T-Girders is joined end to end by multiple Simple T-Girders unit and forms, the weight of a Simple T-Girders unit is less than 148 tons, the monolithic weight of this Simple T-Girders unit meets concentration pre-casting and railway transportation requirement, be conducive to ensureing construction quality and mobilization, and the junction of each Simple T-Girders unit is all positioned on bridge pier 20; Two panels Simple T-Girders wets joint concrete lateral connection together by diaphragm, one section of platform 3 is all stretched out in the outside of two panels Simple T-Girders, the height of platform is lower than the height (as Fig. 3) of Simple T-Girders, platform 3 is provided with concrete cast-in-situ bridge deck 4, and concrete cast-in-situ bridge deck 4 are superimposed is overlapped on platform; The upper surface of the upper surface of described two panels Simple T-Girders, the upper surface of concrete junction 2 and two concrete cast-in-situ bridge deck 4 forms an integrated deck jointly, integrated deck structure is bridge is arranged sound barrier 6 to provide condition, and decrease the maintenance of bridge floor and the workload of maintenance, described integrated deck plate is also provided with horizontal presstressed reinforcing steel 8, this connected mode that transversely prestressed bars 8 is set between two panels Simple T-Girders, concrete junction 2 and two concrete cast-in-situ bridge deck 3, enhance the globality of bridge floor, make structure safety and reliability.
The outboard end of concrete cast-in-situ bridge deck 4 is provided with noise barrier stand column basis 5,5 places, noise barrier stand column basis are provided with noise barrier stand column, distance between two adjacent upright posts is about 2 meters, its concrete distance should be determined according to actual conditions, sound barrier 6 is provided with between two adjacent upright posts, its type can be the reflection-type sound barrier of pure sound insulation or the compound sound barrier combined that absorbs sound and insulate against sound, sound barrier 6 can absorb sound to the noise produced in train travelling process or insulate against sound, and decreases the impact of train on resident living near it.The inner side of sound barrier 6 is provided with cable channel 9.
The middle part of concrete cast-in-situ bridge deck 4 is provided with gear tiny fragments of stone, coal, etc. wall 7, and the distance between two gear tiny fragments of stone, coal, etc. walls 7 meets the requirement of the large machine maintenance of circuit, and namely wire center linear distance gear tiny fragments of stone, coal, etc. wall 7 inner side edge is not less than 2.2m, for the large machine maintenance of circuit on bridge provides condition.
Be sidewalk between gear tiny fragments of stone, coal, etc. wall 7 and sound barrier 6.And the sidewalk of the concrete cast-in-situ bridge deck 4 of each Simple T-Girders unit junction is local widening structure 10, is used as refuge platform; Local widening structure 10 place is provided with and checks ladder 101, checks that the top of ladder 101 is provided with cover plate 102; Local widening structure 10 place is reserved with opening, and opening part is provided with contact net column 103, and contact net column 103 through concrete cast-in-situ bridge deck 4, described refuge platform, checks that ladder and contact net column to be provided convenience condition to maintenance maintenance work by opening.
Embodiment 2
As shown in Figure 2,6, the simple T beam bridge of the band sound barrier of the present embodiment is passenger-cargo double-line railway bridge, comprises four Simple T-Girders, and Simple T-Girders is precast beam.
Every sheet Simple T-Girders is joined end to end by multiple Simple T-Girders unit and forms, the weight of a Simple T-Girders unit is less than 148 tons, the monolithic weight of this Simple T-Girders unit meets concentration pre-casting and railway transportation requirement, be conducive to ensureing construction quality and mobilization, and the junction of each Simple T-Girders unit is all positioned on bridge pier 20; Four Simple T-Girders wet joint concrete lateral connection together by diaphragm, the Simple T-Girders of both sides is side bar (as Fig. 3), Simple T-Girders between two panels side bar is central sill (as Fig. 4), one section of platform 3 is all stretched out in the outside of two panels side bar, the height of platform is lower than the height of Simple T-Girders, platform 3 is provided with concrete cast-in-situ bridge deck 4, and concrete cast-in-situ bridge deck 4 are superimposed is overlapped on platform; The upper surface of the upper surface of described four Simple T-Girders, the upper surface of concrete junction 2 and two concrete cast-in-situ bridge deck 3 forms an integrated deck jointly, integrated deck structure is bridge is arranged sound barrier 6 to provide condition, and decrease the maintenance of bridge floor and the workload of maintenance, described integrated deck plate is also provided with horizontal presstressed reinforcing steel 8, this connected mode that transversely prestressed bars 8 is set between four Simple T-Girders, concrete junction 2 and two concrete cast-in-situ bridge deck 4, enhance the globality of bridge floor, make structure safety and reliability.
The outboard end of concrete cast-in-situ bridge deck 4 is provided with noise barrier stand column basis 5,5 places, noise barrier stand column basis are provided with noise barrier stand column, distance between two adjacent upright posts is about 2 meters, its concrete distance should be determined according to actual conditions, sound barrier 6 is provided with between two adjacent upright posts, its type can be the reflection-type sound barrier of pure sound insulation or the compound sound barrier combined that absorbs sound and insulate against sound, sound barrier 6 can absorb sound to the noise produced in train travelling process or insulate against sound, and decreases the impact of train on resident living near it.The inner side of sound barrier 6 is provided with cable channel 9.
The middle part of concrete cast-in-situ bridge deck 4 is provided with gear tiny fragments of stone, coal, etc. wall 7, and the distance between two gear tiny fragments of stone, coal, etc. walls 7 meets the requirement of the large machine maintenance of circuit, and namely wire center linear distance gear tiny fragments of stone, coal, etc. wall 7 inner side edge is not less than 2.2m, for the large machine maintenance of circuit on bridge provides condition.
Be sidewalk between gear tiny fragments of stone, coal, etc. wall 7 and sound barrier 6.And the sidewalk of the concrete cast-in-situ bridge deck 4 of each Simple T-Girders unit junction is local widening structure 10, is used as refuge platform; Local widening structure 10 place is provided with and checks ladder 101, checks that the top of ladder 101 is provided with cover plate 102; Local widening structure 10 place is reserved with opening, and opening part is provided with contact net column 103, and contact net column 103 through concrete cast-in-situ bridge deck 4, described refuge platform, checks that ladder and contact net column to be provided convenience condition to maintenance maintenance work by opening.
Embodiments of the invention provide in order to example with for the purpose of describing, and are not exhaustively or limit the invention to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (8)
1. the simple T beam bridge with sound barrier, comprise multi-disc Simple T-Girders, described Simple T-Girders is joined end to end by multiple Simple T-Girders unit and forms, and the junction of each Simple T-Girders unit is all positioned on bridge pier, it is characterized in that: each Simple T-Girders wets joint concrete lateral connection together by diaphragm, the outside of the Simple T-Girders of both sides is provided with concrete cast-in-situ bridge deck, the upper surface of the upper surface of described each Simple T-Girders, the upper surface of concrete junction and concrete cast-in-situ bridge deck forms an integrated deck, and described integrated deck plate is provided with horizontal presstressed reinforcing steel; The outside of described concrete cast-in-situ bridge deck is provided with noise barrier stand column basis, and described noise barrier stand column basis place is provided with noise barrier stand column, is provided with sound barrier between two adjacent upright posts;
Described Simple T-Girders is divided into side bar and central sill two kinds, and described side bar is the Simple T-Girders of both sides, and described central sill is the Simple T-Girders between two panels side bar; One section of platform is stretched out in the outside of described side bar, and the height of described platform is lower than the height of Simple T-Girders, and the superimposed overlap joint of described concrete cast-in-situ bridge deck on the platform;
The middle part of described concrete cast-in-situ bridge deck is provided with gear Zha Qiang, and the distance between two gear tiny fragments of stone, coal, etc. walls meets the requirement of the large machine maintenance of circuit, is sidewalk between described gear Zha Qiang and sound barrier.
2. the simple T beam bridge of band sound barrier according to claim 1, is characterized in that: the quantity of described Simple T-Girders is two panels, and two panels Simple T-Girders is side bar, and two panels side bar composition single-line railway bridge.
3. the simple T beam bridge of band sound barrier according to claim 1, is characterized in that: the quantity of described Simple T-Girders is four, and wherein outside two panels is side bar, and in the middle of two panels is central sill, and two panels side bar and two panels central sill composition double-line railway bridge.
4. the simple T beam bridge of the band sound barrier according to Claims 2 or 3, is characterized in that: described Simple T-Girders is precast beam.
5. the simple T beam bridge of band sound barrier according to claim 4, is characterized in that: the sidewalk of the concrete cast-in-situ bridge deck of each Simple T-Girders unit junction is local widening structure, is used as refuge platform.
6. the simple T beam bridge of band sound barrier according to claim 5, is characterized in that: described local widening structure place is provided with and checks ladder, and the top of described inspection ladder is provided with cover plate.
7. the simple T beam bridge of band sound barrier according to claim 5, is characterized in that: described local widening structure place is reserved with opening, and described opening part is provided with contact net column, and described contact net column passes concrete cast-in-situ bridge deck by opening.
8. according to the simple T beam bridge of the band sound barrier in claim 6-7 described in any one, it is characterized in that: the weight of a described Simple T-Girders unit is less than 148 tons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008011.XA CN103061242B (en) | 2013-01-09 | 2013-01-09 | A kind of simple T beam bridge with sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008011.XA CN103061242B (en) | 2013-01-09 | 2013-01-09 | A kind of simple T beam bridge with sound barrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103061242A CN103061242A (en) | 2013-04-24 |
| CN103061242B true CN103061242B (en) | 2016-02-03 |
Family
ID=48104109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310008011.XA Active CN103061242B (en) | 2013-01-09 | 2013-01-09 | A kind of simple T beam bridge with sound barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103061242B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388305A (en) * | 2013-08-19 | 2013-11-13 | 赵培显 | Railway T-beam cast-in-site bridge deck forming machine |
| CN103866689B (en) * | 2014-03-30 | 2015-12-30 | 长安大学 | The new and old bridging of a kind of bridge widening connects reinforcing construction |
| CN103911949B (en) * | 2014-04-09 | 2016-03-30 | 东南大学 | The horizontal shear reinforcement linkage of a kind of concrete slab |
| CN103938538B (en) * | 2014-05-15 | 2016-03-23 | 中铁二院昆明勘察设计研究院有限责任公司 | Railroad bridge evacuation platform |
| CN104389261B (en) * | 2014-11-18 | 2016-05-25 | 湖南大学 | Prefabricated ultra-high performance concrete π ellbeam unit, bridge structure and construction method thereof |
| CN104727243A (en) * | 2015-03-25 | 2015-06-24 | 成都中弘轨道交通环保产业股份有限公司 | Railway T-shaped beam integration super-high strength concrete-micro-porous ceramic compound sound barrier |
| CN105755942B (en) * | 2016-04-26 | 2017-06-16 | 中格复合材料（南通）有限公司 | A kind of railway line Simple T-Girders and its installation method |
| CN106498844B (en) * | 2016-12-01 | 2018-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of high speed railway box beam bridge floor pre-fabricated electric cables slot |
| CN108222051A (en) * | 2018-03-23 | 2018-06-29 | 中铁二院工程集团有限责任公司 | A kind of contact net upright post basic of railway steel reinforced concrete bondbeam and steel reinforced concrete combination bridge |
| CN108643025B (en) * | 2018-05-28 | 2019-08-27 | 温州博旺联科建筑工程有限公司 | A kind of bridge gobo |
| CN108560390B (en) * | 2018-05-28 | 2019-08-23 | 温州博旺联科建筑工程有限公司 | A kind of sound insulation bridge |
| CN108914759A (en) * | 2018-07-05 | 2018-11-30 | 中铁第四勘察设计院集团有限公司 | A kind of tramcar overhead station track beam structure overlapping overline bridge |
| CN111560866A (en) * | 2020-05-29 | 2020-08-21 | 南京同力建设集团股份有限公司 | Bridge deck reinforcing structure of post-added sound barrier screen viaduct and construction method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050622A (en) * | 2007-04-17 | 2007-10-10 | 中铁工程设计咨询集团有限公司 | Method for building railway bridge and simple support T beam bridge |
| CN201276676Y (en) * | 2008-10-07 | 2009-07-22 | 铁道第三勘察设计院集团有限公司 | Sound barrier upright post and bridge curtain board connection mounting structure for high-speed railway |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2438955A7 (en) * | 1978-06-23 | 1980-05-09 | Devillard Maurice | Fixing laminar panels to I=section post for noise barrier - houses each end in slotted round bar in groove formed by sectional bolted mounting block |
| BE885466A (en) * | 1980-09-30 | 1981-01-16 | Dyckerhoff & Widmann Ag | SCREEN-LIKE STRUCTURE, MADE OF PREFABRICATED ELEMENTS, PARTICULARLY FOR HOLDING TALUS AND PROTECTION AGAINST NOISE |
| AT371169B (en) * | 1982-02-01 | 1983-06-10 | Schwarz Gerhard | SOUND PROTECTION DEVICE |
| CN2260100Y (en) * | 1996-12-12 | 1997-08-20 | 交通部上海船舶运输科学研究所 | Composite type noise screen for road |
| CN1397688A (en) * | 2001-07-13 | 2003-02-19 | 四川省交通厅公路规划勘察设计研究院 | Sound-absorbing barrier for highway |
| CN201770949U (en) * | 2010-09-08 | 2011-03-23 | 成都市新筑路桥机械股份有限公司 | Wide-top vertical acoustic screen for a high speed railway |
| CN201843076U (en) * | 2010-10-12 | 2011-05-25 | 中铁二院工程集团有限责任公司 | Groove-shaped steel bridge deck structure of high-speed railway steel tied arched bridge |
-
2013
- 2013-01-09 CN CN201310008011.XA patent/CN103061242B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050622A (en) * | 2007-04-17 | 2007-10-10 | 中铁工程设计咨询集团有限公司 | Method for building railway bridge and simple support T beam bridge |
| CN201276676Y (en) * | 2008-10-07 | 2009-07-22 | 铁道第三勘察设计院集团有限公司 | Sound barrier upright post and bridge curtain board connection mounting structure for high-speed railway |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103061242A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103061242B (en) | A kind of simple T beam bridge with sound barrier | |
| CN103938538B (en) | Railroad bridge evacuation platform | |
| CN103924505B (en) | Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate | |
| CN104594173B (en) | One kind embraces rail magnetic levitation track traffic box beam | |
| CN206538637U (en) | A kind of track strengthening device for existing railway | |
| CN201843076U (en) | Groove-shaped steel bridge deck structure of high-speed railway steel tied arched bridge | |
| JP2022023107A (en) | System for construction of complex u-shaped reinforcement beam bridge deck, and method thereof | |
| CN103556566B (en) | Long-Span Railway Cable-Stayed Bridge main beam structure | |
| CN203639802U (en) | Large-span railway cable-stayed bridge girder structure | |
| CN206680871U (en) | Boom device is transported on a kind of four rail beams | |
| CN203065950U (en) | Railway bridge composed of simply-supported T-shaped beams | |
| CN205443907U (en) | Double track railway box web letter branching groove ellbeam | |
| CN207739159U (en) | A kind of cantilevered out section of template system of cast-in-place floorings | |
| CN108842530B (en) | A kind of straddle-type monorail two-wire combined track girder construction | |
| CN203559329U (en) | Steel-RPC (reactive powder concrete) combined bridge | |
| CN203559341U (en) | Longitudinal and transverse beam system channel beam of railway longitudinal beam type box beam | |
| CN202530370U (en) | Channel steel-concrete composite beam with novel shear connector | |
| CN201390928Y (en) | Support rail continuous beam in double track railway | |
| CN108951397A (en) | A kind of groove profile-welded box cross column continuous bridge | |
| CN207295515U (en) | A kind of sound barrier | |
| CN203383133U (en) | Simply supported U-shaped girder for noise reduction of high-speed rail | |
| CN107642010A (en) | Medium-and low-speed maglev traffic system straightway support rail beam | |
| CN107724225A (en) | A kind of suspension type monorail Long span track girder system | |
| CN103243662B (en) | Reconstruction and reinforcement method for existing railroad bridge | |
| CN204491397U (en) | A kind of Mid and minor spans pretensioned prestressing steel bar concrete has just connect small box girder structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |