CN103882801A - Segment assembled type combined highway and railway cable-stayed bridge with inconsistent bridge deck widths of highway and railway - Google Patents
Segment assembled type combined highway and railway cable-stayed bridge with inconsistent bridge deck widths of highway and railway Download PDFInfo
- Publication number
- CN103882801A CN103882801A CN201410128805.4A CN201410128805A CN103882801A CN 103882801 A CN103882801 A CN 103882801A CN 201410128805 A CN201410128805 A CN 201410128805A CN 103882801 A CN103882801 A CN 103882801A
- Authority
- CN
- China
- Prior art keywords
- truss
- sub
- railway
- highway
- bridge
- 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.)
- Granted
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a girder type of a segment assembled type combined highway and railway cable-stayed bridge with inconsistent bridge deck widths of a highway and a railway. A girder is composed of a main truss, an auxiliary truss, a highway bridge face and a railway bridge face. The upper-layer bridge face is wide, the lower-layer bridge face is narrow, the width of the main truss is determined by the railway bridge face, and the width of the auxiliary truss is determined by the highway bridge face. Supporting rods for supporting the highway bridge face on the two sides are arranged on a main truss bottom chord in a suspension mode. Auxiliary truss upper chords and the supporting rods form the auxiliary truss together. Stay cables are anchored on the auxiliary truss upper chords through anchor tensile plates. The highway bridge face is welded to main truss upper chords and the auxiliary truss upper chords. The railway bridge face is welded to main truss bottom chords. The upper ends and the lower ends of flange plates of the auxiliary truss supporting rods are welded to the auxiliary truss upper chords and the main truss bottom chords respectively. Web plates of the auxiliary truss upper chords and the flange plates of the auxiliary truss supporting rods are identical in inclined angle. The segment assembled type combined highway and railway cable-stayed bridge with the inconsistent bridge deck widths of the highway and the railway is simple in structure, economical in manufacturing cost and clear and direct in stress, is manufactured by welding whole segments in a factory, and is assembled and erected through the whole segments on a construction site, the construction difficulty in the severe environment of straits is greatly lowered, and the bridge is adopted in the combined highway and railway cable-stayed bridge of the Pingtan strait.
Description
Technical field
The present invention relates to a kind of public, spliced highway and railway bi-purpose cable-stayed bridge girder of the inconsistent sections of railway deck width.
Background technology
Though traditional combined bridge bridge deck width highway bridge is wider, but width is more or less the same, the form of structure of can choose arm by oblique main truss, the band that winds up, widening lower floor's bridge floor realizes.And for highway bridge compared with bridge wide and that railway deck is narrower, adopt traditional structure be difficult for realize.Traditional steel truss girder adopts in single rod member factory and manufactures, and building site is assembled by root rod member, and site work amount is large, and the duration is subject to effect of natural conditions.
The combined bridge in straits, Pingtan, good fortune black iron road, Fujian is highway and railway bi-purpose cable-stayed bridge, wherein upper layer bridge face width 38m, the wide 15m of lower floor's bridge floor.As adopting oblique main truss, main truss inclination angle will reach 55 degree, all very unfavorable for structure stress and structure processing; As adopt upper chord band to choose the form of arm, choose brachium and will reach 12m, and suspension cable can only be arranged on and choose arm end, its rigidity and stressedly all cannot meet instructions for use; Widen lower floor's bridge floor as adopted and significantly increase engineering quantity, economical not.
Waves whipped up by the wind rolled turbulently throughout the year for Pingtan bridge bridge location of living in, as adopt traditional Steel truss structure, assembled by root rod member, limited by field condition, and the duration cannot ensure.Therefore need to design the combined bridge main beam structure of a kind of reasonable stress, simple structure, cost economic, constructability and late maintaining.
Summary of the invention
The object of the invention is for above-mentioned present situation, aim to provide a kind of reasonable stress, simple structure, cost economic, constructability and late maintaining, be suitable for upper and lower two-layer bridge floor and differ larger, bridge location place environment is severe and possess the spliced highway and railway bi-purpose cable-stayed bridge girder of public affairs, the inconsistent sections of railway deck width of large segmental construction condition.
The implementation of object of the present invention is, public, the inconsistent highway and railway bi-purpose cable-stayed bridge girder of railway deck width, upper strata is highway bridge, lower floor is railway deck, public, railway deck is cross bridge floor board, and girder is made up of main couple, sub-truss, upper strata highway bridge and lower floor's railway deck; Upper strata road bridge face width, lower floor's railway deck is narrow, and the width of main couple is definite according to railway deck width, and the width of sub-truss is determined according to highway bridge width;
From main couple lower chord, hang the sub-truss strut of support both sides highway bridge; Sub-truss upper chord and sub-truss strut form sub-truss jointly; Suspension cable is anchored on sub-truss upper chord top board by anchor arm-tie;
Highway bridge top board and main couple upper chord top board, the welding of sub-truss upper chord top board, highway bridge crossbeam and main couple upper chord riser and the welding of sub-truss upper chord riser; Railway deck top board and the welding of main couple lower chord top board, railway deck crossbeam and the welding of main couple lower chord riser; The welding of aliging with the top board of main couple lower chord and base plate of the wing plate lower end of sub-truss strut; The welding of aliging with the web of sub-truss upper chord of wing plate upper end; The welding of aliging with sub-truss upper chord dividing plate and main couple lower chord dividing plate respectively of the web upper and lower side of sub-truss strut " work " tee section; The web of sub-truss upper chord is identical with the wing plate inclination angle of sub-truss strut.
Girder of the present invention adopts whole sections welding in factory to manufacture, and the whole section assembling of building-site sets up, and the more traditional main beam structure of site work amount reduces greatly, in the rugged environment of straits, can effectively ensure the construction period, reduces difficulty of construction.
Simple structure of the present invention, cost economic, stressed directly clear and definite, constructability and late maintaining, be suitable for upper and lower two-layer bridge floor and differ larger, and bridge location place environment is severe and possess the highway and railway bi-purpose cable-stayed bridge main beam structure of large segmental construction condition.
The present invention adopts at straits, Pingtan, Fujian highway and railway bi-purpose cable-stayed bridge, has obtained good utilization effect.
Brief description of the drawings
Fig. 1 is the profile of the present invention along direction across bridge;
Fig. 2 be the present invention along the vertical bridge of main couple to constructional drawing;
Fig. 3 be the present invention along the vertical bridge of sub-truss to constructional drawing;
Fig. 4 is suspension cable anchor arm-tie of the present invention and sub-truss upper chord connection diagram;
Fig. 5 is main couple upper chord connection diagram of the present invention;
Fig. 6 is sub-truss strut of the present invention and main couple lower chord connection diagram.
Detailed description of the invention
With reference to Fig. 1-6, bridge deck 1, railway deck are 2 to the spliced highway and railway bi-purpose cable-stayed bridge bridge girder of sections of the present invention structure by road, main couple upper chord 3, main couple lower chord 4, main couple montant 5, main couple brace 9, sub-truss strut 6, sub-truss upper chord 7 and suspension cable anchor arm-tie 8 form.Between each parts all in factory by being welded to connect.
Upper strata of the present invention is highway bridge, and lower floor is railway deck, and public, railway deck is cross bridge floor board, and highway bridge 1 is wide, and railway deck 2 is narrow, hangs the sub-truss strut 6 of support both sides highway from lower chord outside.Main couple is made up of main truss upper chord 3, main couple lower chord 4, main couple montant 5 and main couple brace 9, and sub-truss is made up of sub-truss upper chord 7 and sub-truss strut 6.Main couple upper chord 3, main couple lower chord 4 cross sections are rectangular box cross section, and sub-truss upper chord 7 cross sections are parallelogram case cross section.Sub-truss strut 6 is " work " tee section strut.
The width of main couple is definite according to railway deck width, and the width of sub-truss is determined according to public bridge deck width.Highway bridge top board and main couple upper chord top board 13, sub-truss upper chord top board 10 weld; Highway bridge crossbeam top board and main couple upper chord top board 13 and sub-truss upper chord top board 10 weld.Highway bridge cantilever diaphragm and base plate and main couple upper chord riser 14 and sub-truss upper chord riser 11 weld.Railway deck top board and main couple lower chord top board 15 weld, and railway deck cantilever diaphragm and base plate and main couple lower chord riser 16 weld.
Align and be welded on riser 16 with the top board 15 of main couple lower chord 4 and base plate 14 in two wing plate 12 lower ends of " work " tee section of sub-truss strut 6; The welding of aliging with the riser 11 of sub-truss upper chord 7 of wing plate 12 upper ends; The welding of aliging with the riser 11 of sub-truss upper chord 7 of wing plate 12 upper ends; The welding of aliging with sub-truss upper chord dividing plate 18 and main couple lower chord dividing plate 19 respectively of web 17 upper and lower sides of sub-truss strut " work " tee section.The riser 11 of sub-truss upper chord 7 is identical with wing plate 12 inclination angles of sub-truss strut 6.
Girder adopts whole sections welding in factory to manufacture, and the whole section assembling in building site sets up, and splice point is main couple upper chord 3, main couple lower chord 4 and main couple diagonal web member 9.Main couple, sub-truss are connecting by high-strength bolt at the construction field (site); Highway bridge system and railway deck system scene connect by welding manner.
Reasonable stress of the present invention, simple structure, cost economic, constructability and late maintaining, be suitable for upper and lower two-layer bridge floor and differ larger, and bridge location place environment is severe and possess the highway and railway bi-purpose cable-stayed bridge main beam structure of large segmental construction condition.
The present invention adopts at straits, Pingtan, Fujian highway and railway bi-purpose cable-stayed bridge, has obtained good utilization effect.
Claims (4)
1. public affairs, the inconsistent section assembling formula of railway deck width highway and railway bi-purpose cable-stayed bridge girder, upper strata is highway bridge, lower floor is railway deck, public, railway deck is cross bridge floor board, it is characterized in that girder is made up of main couple, sub-truss, upper strata highway bridge and lower floor's railway deck; Upper strata road bridge face width, lower floor's railway deck is narrow, and the width of main couple is definite according to railway deck width, and the width of sub-truss is determined according to highway bridge width;
From main couple lower chord, hang the sub-truss strut of support both sides highway bridge; Sub-truss upper chord and sub-truss strut form sub-truss jointly; Suspension cable is anchored on sub-truss upper chord top board by anchor arm-tie;
Highway bridge top board and main couple upper chord top board, the welding of sub-truss upper chord top board, highway bridge crossbeam and main couple upper chord riser and the welding of sub-truss upper chord riser; Railway deck top board and the welding of main couple lower chord top board, railway deck crossbeam and the welding of main couple lower chord riser; The welding of aliging with the top board of main couple lower chord and base plate of the wing plate lower end of sub-truss strut; The welding of aliging with the web of sub-truss upper chord of wing plate upper end; The welding of aliging with sub-truss upper chord dividing plate and main couple lower chord dividing plate respectively of the web upper and lower side of sub-truss strut " work " tee section; The web of sub-truss upper chord is identical with the wing plate inclination angle of sub-truss strut.
2. public affairs according to claim 1, the inconsistent section assembling formula of railway deck width highway and railway bi-purpose cable-stayed bridge girder, it is characterized in that main couple upper chord (3), main couple lower chord (4) cross section are rectangular box cross section, sub-truss upper chord (7) cross section is parallelogram case cross section, and sub-truss strut (6) is " work " tee section strut.
3. public affairs according to claim 1, the inconsistent section assembling formula of railway deck width highway and railway bi-purpose cable-stayed bridge girder, two blocks of wing plates (12) lower end of " work " tee section and the top board (15) of main couple lower chord (4) and base plate (14) that it is characterized in that sub-truss strut (6) aligns and is welded on riser (16); The welding of aliging with the riser (11) of sub-truss upper chord (7) of wing plate (12) upper end; The welding of aliging with sub-truss upper chord dividing plate (18) and main couple lower chord dividing plate (19) respectively of web (17) upper and lower side of sub-truss strut " work " tee section.The riser (11) of sub-truss upper chord (7) is identical with wing plate (12) inclination angle of sub-truss strut (6).
4. public affairs according to claim 1, the inconsistent section assembling formula of railway deck width highway and railway bi-purpose cable-stayed bridge girder, it is characterized in that this girder adopts whole sections welding in factory to manufacture, the whole section assembling in building site sets up, and splice point is main couple upper chord (3), main couple lower chord (4) and main couple diagonal web member (9); Main couple, sub-truss connect by high-strength bolt at the construction field (site); Highway and railway deck system scene connect by welding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128805.4A CN103882801B (en) | 2014-04-01 | 2014-04-01 | The section assembling formula highway and railway bi-purpose cable-stayed bridge girder public, railway deck width is inconsistent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410128805.4A CN103882801B (en) | 2014-04-01 | 2014-04-01 | The section assembling formula highway and railway bi-purpose cable-stayed bridge girder public, railway deck width is inconsistent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103882801A true CN103882801A (en) | 2014-06-25 |
| CN103882801B CN103882801B (en) | 2015-08-12 |
Family
ID=50951904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410128805.4A Active CN103882801B (en) | 2014-04-01 | 2014-04-01 | The section assembling formula highway and railway bi-purpose cable-stayed bridge girder public, railway deck width is inconsistent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103882801B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652246A (en) * | 2015-02-13 | 2015-05-27 | 中铁第四勘察设计院集团有限公司 | Sandwich board type steel-concrete combined cross section cable-stayed bridge main beam |
| CN105113382A (en) * | 2015-05-21 | 2015-12-02 | 中铁大桥勘测设计院集团有限公司 | Inclined-strut and double-web connection structure for steel truss with auxiliary purlins |
| CN106149539A (en) * | 2016-07-08 | 2016-11-23 | 中铁二院工程集团有限责任公司 | Highway-railway dual-purpose bridge staggered floor main beam section constructs |
| CN107268421A (en) * | 2017-08-11 | 2017-10-20 | 湖南省交通规划勘察设计院有限公司 | Spatial Cable face steel truss girder cable-stayed bridge cable beam anchoring component and Spatial Cable face steel truss girder cable-stayed bridge |
| CN107476181A (en) * | 2017-08-30 | 2017-12-15 | 中铁大桥勘测设计院集团有限公司 | Cable-stayed bridge and its construction method are anchored outside a kind of combined purlin |
| 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, |
| CN109024267A (en) * | 2018-07-04 | 2018-12-18 | 中铁大桥勘测设计院集团有限公司 | A kind of Steel Truss Beam structure of curve bridge floor |
| CN109295865A (en) * | 2018-09-28 | 2019-02-01 | 上海市政工程设计研究总院（集团）有限公司 | A kind of steel truss girder bridge widening and improving method |
| 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 |
| CN110373989A (en) * | 2019-07-22 | 2019-10-25 | 中铁大桥局集团有限公司 | A kind of whole segment manufacturing method of non-major P.E.subject steel truss girder closure section |
| CN112144371A (en) * | 2020-09-30 | 2020-12-29 | 中铁大桥勘测设计院集团有限公司 | Cable-stayed suspension cable cooperation system bridge |
| CN114214920A (en) * | 2021-12-21 | 2022-03-22 | 安徽省公路桥梁工程有限公司 | Large-span double-layer combined construction steel truss arch bridge and construction method thereof |
| CN114214957A (en) * | 2021-12-30 | 2022-03-22 | 武船重型工程股份有限公司 | Construction method of double-layer truss bridge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052768A (en) * | 2004-06-09 | 2007-10-10 | 独立行政法人土木研究所 | Cable stayed suspension bridge making combined use of one-box and two-box girders |
| CN201236319Y (en) * | 2008-05-12 | 2009-05-13 | 西安铁路科学技术研究发展有限责任公司 | Apparatus for maintaining inclined molding edge joist dual-purpose bridge for road and railway |
| CN101603288A (en) * | 2009-07-03 | 2009-12-16 | 中铁大桥局股份有限公司 | A kind of three-truss main girder structure of highway and railway bi-purpose cable-stayed bridge and mounting method thereof |
| KR20120013740A (en) * | 2010-08-06 | 2012-02-15 | 지에스건설 주식회사 | Partially earth-anchored cable-stayed bridge using hinge connection parts and construction method for the same |
| WO2013188341A2 (en) * | 2012-06-11 | 2013-12-19 | Parsons Corporation | Redundancy truss for cable-stayed and other bridge types |
-
2014
- 2014-04-01 CN CN201410128805.4A patent/CN103882801B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052768A (en) * | 2004-06-09 | 2007-10-10 | 独立行政法人土木研究所 | Cable stayed suspension bridge making combined use of one-box and two-box girders |
| CN201236319Y (en) * | 2008-05-12 | 2009-05-13 | 西安铁路科学技术研究发展有限责任公司 | Apparatus for maintaining inclined molding edge joist dual-purpose bridge for road and railway |
| CN101603288A (en) * | 2009-07-03 | 2009-12-16 | 中铁大桥局股份有限公司 | A kind of three-truss main girder structure of highway and railway bi-purpose cable-stayed bridge and mounting method thereof |
| KR20120013740A (en) * | 2010-08-06 | 2012-02-15 | 지에스건설 주식회사 | Partially earth-anchored cable-stayed bridge using hinge connection parts and construction method for the same |
| WO2013188341A2 (en) * | 2012-06-11 | 2013-12-19 | Parsons Corporation | Redundancy truss for cable-stayed and other bridge types |
Non-Patent Citations (2)
| Title |
|---|
| 方秦汉: "芜湖长江大桥的技术创新", 《铁道建筑技术》, no. 4, 31 December 2002 (2002-12-31) * |
| 黄纳新: "金海特大公铁两用斜拉桥桥式方案研究", 《铁道勘察》, no. 1, 31 December 2013 (2013-12-31), pages 95 - 98 * |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104652246A (en) * | 2015-02-13 | 2015-05-27 | 中铁第四勘察设计院集团有限公司 | Sandwich board type steel-concrete combined cross section cable-stayed bridge main beam |
| CN104652246B (en) * | 2015-02-13 | 2016-06-15 | 中铁第四勘察设计院集团有限公司 | The board-like Steel-Concrete Composite Sections cable-stayed bridge main-beam of sandwich |
| CN105113382A (en) * | 2015-05-21 | 2015-12-02 | 中铁大桥勘测设计院集团有限公司 | Inclined-strut and double-web connection structure for steel truss with auxiliary purlins |
| CN106149539A (en) * | 2016-07-08 | 2016-11-23 | 中铁二院工程集团有限责任公司 | Highway-railway dual-purpose bridge staggered floor main beam section constructs |
| CN106149539B (en) * | 2016-07-08 | 2018-08-14 | 中铁二院工程集团有限责任公司 | The dual-purpose bridge staggered floor main beam section construction of highway-railway |
| CN107268421A (en) * | 2017-08-11 | 2017-10-20 | 湖南省交通规划勘察设计院有限公司 | Spatial Cable face steel truss girder cable-stayed bridge cable beam anchoring component and Spatial Cable face steel truss girder cable-stayed bridge |
| CN107476181A (en) * | 2017-08-30 | 2017-12-15 | 中铁大桥勘测设计院集团有限公司 | Cable-stayed bridge and its construction method are anchored outside a kind of combined purlin |
| 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, |
| CN109024267A (en) * | 2018-07-04 | 2018-12-18 | 中铁大桥勘测设计院集团有限公司 | A kind of Steel Truss Beam structure of curve bridge floor |
| CN109024267B (en) * | 2018-07-04 | 2020-07-21 | 中铁大桥勘测设计院集团有限公司 | Steel truss girder structure of curved bridge floor |
| CN109295865A (en) * | 2018-09-28 | 2019-02-01 | 上海市政工程设计研究总院（集团）有限公司 | A kind of steel truss girder bridge widening and improving method |
| 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 |
| CN110373989A (en) * | 2019-07-22 | 2019-10-25 | 中铁大桥局集团有限公司 | A kind of whole segment manufacturing method of non-major P.E.subject steel truss girder closure section |
| CN112144371A (en) * | 2020-09-30 | 2020-12-29 | 中铁大桥勘测设计院集团有限公司 | Cable-stayed suspension cable cooperation system bridge |
| CN114214920A (en) * | 2021-12-21 | 2022-03-22 | 安徽省公路桥梁工程有限公司 | Large-span double-layer combined construction steel truss arch bridge and construction method thereof |
| CN114214920B (en) * | 2021-12-21 | 2024-04-30 | 安徽省公路桥梁工程有限公司 | Large-span double-layer built-up steel truss arch bridge and construction method thereof |
| CN114214957A (en) * | 2021-12-30 | 2022-03-22 | 武船重型工程股份有限公司 | Construction method of double-layer truss bridge |
| CN114214957B (en) * | 2021-12-30 | 2024-03-22 | 武船重型工程股份有限公司 | Construction method of double-layer truss bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103882801B (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103882801A (en) | Segment assembled type combined highway and railway cable-stayed bridge with inconsistent bridge deck widths of highway and railway | |
| CN104499413B (en) | Modularity punching block concrete combination arch bridge and suspension cable hanging construction method thereof | |
| CN204662661U (en) | The two rope truss string structure system of the two case beam of large span | |
| CN102352604B (en) | Truss sheet unit of steel truss girder, steel truss girder structure and mounting method thereof | |
| CN103821075B (en) | Long span oblique pull assembly type steel bridge on highway | |
| CN102912972B (en) | Multifunctional lifting steel platform switching jig and construction method | |
| CN101787732A (en) | Cable-stayed multi-layer framework structure and construction control method thereof | |
| CN104695341A (en) | Non-self-balanced beam string structure for reinforcing large-span continuous beam bridge | |
| CN103306189A (en) | Steel truss-prestressed concrete bridge deck combined bridge girder and construction method thereof | |
| CN101858053A (en) | Stayed-cable anchor plate type anchoring structure of stayed-cable bridge cable tower | |
| CN109505222A (en) | A kind of netted sunpender bowstring arch bridge of assembled | |
| CN104818772A (en) | Large-span long-cantilever connection structure and construction technique | |
| CN103883054A (en) | Cable-strut rib beam combined floor and construction method thereof | |
| CN104389267A (en) | Large-span suspension bridge reinforcement beam bridge face plate | |
| CN103806373B (en) | Oblique pull assembly type steel bridge on highway suspension cable anchor system | |
| CN205999766U (en) | Laemodipodiform steel tubular type broken line arch bridge | |
| CN102635061B (en) | Mountain stream river-crossing inclined zipper trestle and hoisting method thereof | |
| CN109763417B (en) | Cable-stayed steel truss cooperative system bridge | |
| CN202627327U (en) | Haunching double-hinge straight arch beam | |
| CN103835238A (en) | High-pier cable-stayed bridge zero-number block non-bracket construction method and structure in construction process | |
| CN104018427A (en) | All-welded box girder combination section constructing method | |
| CN105648898A (en) | Prefabricated ultra-high-performance concrete half-through beam units, bridge beam structure and construction method | |
| CN214530201U (en) | Self-anchored pipeline suspension bridge steel pipe truss girder and self-anchored pipeline suspension bridge | |
| CN100381641C (en) | Widened box girder, apposite boardelevated road, its manufacturing and maintaining method thereof | |
| CN103374879B (en) | One is fallen terraced section steel truss cable-stayed bridge mid-side node syndeton |
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 |