CN102535348B - Method for tensioning stayed cables of hinged tower cable stayed bridge - Google Patents
Method for tensioning stayed cables of hinged tower cable stayed bridge Download PDFInfo
- Publication number
- CN102535348B CN102535348B CN 201210067088 CN201210067088A CN102535348B CN 102535348 B CN102535348 B CN 102535348B CN 201210067088 CN201210067088 CN 201210067088 CN 201210067088 A CN201210067088 A CN 201210067088A CN 102535348 B CN102535348 B CN 102535348B
- Authority
- CN
- China
- Prior art keywords
- cable
- tower
- bridge
- king
- stayed
- 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
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a method for tensioning stayed cables of a hinged tower cable stayed bridge. The cable stayed bridge comprises a beam body, a bridge tower and the stayed cables, wherein the bridge tower consists of a main tower positioned above the beam body and a lower tower column rigidly connected with the beam body; and the main tower is hinged with the lower tower column. The method for tensioning the stayed cables comprises the following steps of: constructing a bridge foundation which comprises a pile foundation, a bearing platform and a pier column, and constructing the lower tower column while erecting the beam body; constructing the main tower hinged with the lower tower column, and hanging the stayed cables positioned on one side of the main tower; and hanging and tensioning the stayed cables positioned on the other side of the main tower. The method for tensioning the stayed cables of the hinged tower cable stayed bridge can be widely applied to the construction of cable stayed bridges of various structure systems, the work efficiency of tensioning the stayed cables can be greatly improved, and construction accuracy is ensured; and enough technical support and theoretical guarantee are provided for the construction of the cable stayed bridges in future, and the method has great practical significance.
Description
Technical field
The present invention relates to a kind of method for stretching of stay cable of cable-stayed bridge, relate in particular to a kind of method for stretching that cuts with scissors the pylon cable-stayed bridge suspension cable.
Background technology
Cable stayed bridge claims again Cable stayed bridge, is the many suspension cables of beam body and function directly are pulled in a kind of bridge on the bridge tower, is by the suspension cable of the bridge tower of pressure-bearing, tension and holds a kind of structural system that curved beam body combines.It can regard that suspension cable replaces the multispan elastomeric bearing continuous beam of buttress as.It can make, and moment of flexure reduces in the beam body, reduces building height, alleviates construction weight, saves material.
Cable stayed bridge is as a kind of guy system, and is larger than the span ability of beam bridge, is the main bridge type of Longspan Bridge.Cable stayed bridge is comprised of bridge tower, beam body, suspension cable, and wherein bridge tower, beam body are as the deck system pressurized, and suspension cable is as a kind of combined bridge structural system of supporting system tension.The bridge tower pattern has A type, inverted Y-shaped, Type B, only post, and material has steel and concrete.Suspension cable is furnished with Dan Suomian, parallel double rope face, oblique cord face etc.Cable stayed bridge primary structure system has: floating system, half floating system, tower beam consolidation system, firm structure system, T structure system, part earth anchor system, short tower section cable-stayed bridge system etc.The arrangement form of stay cable of cable-stayed bridge mainly contains: Radiation, harp-shaped, fan-shaped etc.
In CONSTRUCTION OF CABLE-STAYED BRIDGE, to stride symmetrical stretch-draw be main to the inclined guy cable stretching method mainly with major and minor, and when adjusting stay cable force, major and minor also striding all need be adjusted.
Carry out at present the first plan of stay cable force mainly with " dead load equilibrium method "." dead load equilibrium method " main supposition comprises two aspects: the one, for main span, ignore the impact of beam body bending rigidity; The 2nd, stride for pair, ignore the bending rigidity of bridge tower.Therefore, the shortcoming of traditional inclined guy cable stretching mode is that suspension cable needs symmetrical stretch-draw, be that main span suspension cable and pair are striden the suspension cable simultaneous tension, cable stayed bridge shown in Fig. 1 mainly is made of beam body 1, bridge tower (comprising king-tower 2 and lower king-post strut 4) and suspension cable 3, one side of bridge tower is the main span side, the opposite side of bridge tower is that pair is striden side, and the stretching mode of suspension cable 3 is the suspension cable b1 that stretch-draw a1 simultaneous tension pair is striden side; The suspension cable a2 simultaneous tension pair of again stretch-draw main span side is striden the suspension cable b2 of side; The suspension cable a3 simultaneous tension pair of then stretch-draw main span side is striden the suspension cable b3 of side; By that analogy, the whole suspension cables of stretch-draw.Because the hydraulic top that suspension cable uses has error, therefore, be subjected to curvedly with the rigidly connected king-tower 2 of lower king-post strut 4 (or beam body 1), beam body 1 horizontal force is uneven.
Summary of the invention
For above-mentioned prior art, the invention provides a kind of method for stretching that cuts with scissors the pylon cable-stayed bridge suspension cable, be applicable to the major and minor cable stayed bridge of all arranging suspension cable of striding, suspension cable to the bridge tower both sides, only need the suspension cable of stretch-draw bridge tower one side, and the suspension cable of opposite side need not to carry out stretch-draw, has not only simplified the stretching process of suspension cable, has eliminated simultaneously the defective that causes the bridge tower bending because of bridge tower both sides inclined cable force unbalance.
In order to solve the problems of the technologies described above, the technical scheme that a kind of method for stretching that cuts with scissors the pylon cable-stayed bridge suspension cable of the present invention is achieved is: wherein cable stayed bridge comprises beam body, bridge tower and suspension cable, described bridge tower consists of by the king-tower that is positioned at beam body top with the rigidly connected lower king-post strut of described beam body, adopts hinged between described king-tower and the described lower king-post strut; The method for stretching of described suspension cable may further comprise the steps:
Step 1, construction bridges basis, described bridge foundation comprises pile foundation, cushion cap and pier stud, finishes the construction of finishing lower king-post strut when the beam body sets up;
The king-tower that step 2, construction and lower king-post strut are hinged, and finish the hanging cable that is positioned at king-tower one skew back drag-line;
Step 3, finish the hanging cable and the stretch-draw that are positioned at described king-tower opposite side suspension cable.
Further, in above-mentioned steps one, the position of described lower king-post strut overlaps with the position of one of them pier stud of described bridge.
Also have, in step 2 and step 3, the order of hanging cable is to begin successively outwards hanging cable from pin joint suspension cable the most nearby.
In addition, in step 3, comprise one of following two kinds of situations: the suspension cable of this side successively all after the hanging cables, after carrying out successively stretch-draw again or whenever hanging a skew cables, is carried out stretch-draw to this skew cables immediately.In the inclined guy cable stretching process of step 3, according to the monitored results to stay cable force, determine whether that this suspension cable is carried out Suo Li to be adjusted.
Compared with prior art, the invention has the beneficial effects as follows:
(1) reduces the stretch-draw number of times.Stretch-draw is positioned at the suspension cable of bridge tower one side, and the stretch-draw number of times is 50% of traditional tensioning process, has greatly shortened the stretch-draw time, saves the duration.
(2) reduce tension error.Because the jack self that the stretching oblique drag-line adopts has error, therefore each stretch-draw of suspension cable all can produce error, and the suspension cable of stretch-draw bridge tower one side only, can determine the corresponding Suo Li of opposite side suspension cable by calculating, the coefficient of utilization of jack is 50% of traditional tensioning process, thereby has reduced the inclined guy cable stretching power error that causes owing to jack self error.
A kind of method for stretching that cuts with scissors the pylon cable-stayed bridge suspension cable of the present invention can be widely used in various major and minor constructions of striding the cable stayed bridge of all arranging suspension cable, not only can increase substantially the operating efficiency of inclined guy cable stretching, and has guaranteed the accuracy of construction.For the from now on construction of cable stayed bridge provides enough technical support and theoretical guarantees, has very important realistic meaning.
Description of drawings
Fig. 1 is that a kind of bridge tower and beam body rigidly connect stay cable of cable-stayed bridge method for stretching schematic diagram in the prior art;
Fig. 2 is a kind of method for stretching schematic diagram that cuts with scissors the pylon cable-stayed bridge suspension cable of the present invention;
Fig. 3-1 is to Fig. 3-the 5th, and the present invention cuts with scissors the schematic diagram of the method for stretching embodiment of pylon cable-stayed bridge suspension cable;
Wherein: Fig. 3-the 1st, the schematic diagram behind the completing steps one,
Fig. 3-the 2nd, the schematic diagram of completing steps two,
Fig. 3-the 3rd finishes the schematic diagram after first hanging cable of stay cable stretch-draw in the step 3,
Fig. 3-the 4th finishes the schematic diagram after whole hanging cable of stay cables and the stretch-draw,
The schematic diagram of the cable stayed bridge that the method for stretching that Fig. 3-5 adopts the present invention to cut with scissors the pylon cable-stayed bridge suspension cable is finished;
The specific embodiment
Below in conjunction with the specific embodiment the present invention is described in further detail.
As shown in Figure 2, a kind of method for stretching that cuts with scissors the pylon cable-stayed bridge suspension cable of the present invention, wherein cable stayed bridge comprises beam body 1, bridge tower and suspension cable 3, described bridge tower consists of by the king-tower 2 that is positioned at beam body 1 top with described beam body 1 rigidly connected lower king-post strut 4, adopts hinged between described king-tower 2 and the described lower king-post strut 4; The principle of namely just intending according to " dead load equilibrium method " stay cable force, when initial stay cable force was drafted, the method for stretching of described suspension cable 3 may further comprise the steps:
Step 1, construction bridges basis, described bridge foundation comprises pile foundation, cushion cap and pier stud, finishes the construction of finishing lower king-post strut 4 when beam body 1 sets up; The position of wherein said lower king-post strut 4 can overlap with the position of one of them pier stud of bridge.
The king-tower 2 that step 2, construction and lower king-post strut 4 are hinged, and finish the hanging cable that is positioned at king-tower 2 one skew back drag-lines;
Step 3, finish the hanging cable and the stretch-draw that are positioned at described king-tower 2 opposite side suspension cables.When the stretching oblique drag-line, can be that the suspension cable of this side successively all after the hanging cables, is carried out stretch-draw more successively; Also can be after whenever hanging a skew cables, immediately this skew cables to be carried out stretch-draw.In addition, according to the monitored results to stay cable force, determine whether that this suspension cable is carried out Suo Li to be adjusted.
For easy construction, the order that no matter is positioned at the hanging cable of stay cable of which side of bridge tower (so it is all unrestricted to stride side to main span side or pair) all can be to begin successively outwards hanging cable from pin joint suspension cable the most nearby, but other order is all unrestricted.
According to the first principle of intending of " dead load equilibrium method " stay cable force, when initial stay cable force is drafted, the present invention is by adopting hinge tower (adopting hinged between described king-tower 2 and the described lower king-post strut 4) mode to reach the purpose of the bending rigidity of ignoring tower, to eliminate the impact of bridge tower bending rigidity in the inclined guy cable stretching process.Characteristics of the present invention are: be positioned at the not stretch-draw of suspension cable of bridge tower one side, and can determine this skew back Cable power by numerical computations.After inclined guy cable stretching is finished, can the hinge of hinge tower is fixed, therefore, the method for stretching of suspension cable of the present invention both had been applicable to cut with scissors the inclined guy cable stretching that pylon cable-stayed bridge also can be applicable to other structural system cable stayed bridge.
Tell about by the following examples detailed process of the present invention, it is convenience in order to understand that embodiment is provided, and never is restriction the present invention, such as, the sequential scheduling of the hanging cable stretch-draw of suspension cable.
Embodiment:
The research material brief introduction: shown in Fig. 3-5, adopt the cable stayed bridge form of hinge tower, bridge tower tilts 18 ° to the river course center position, and bridge tower and lower king-post strut are hinged, beam body and lower king-post strut are fixed, and main spanning directly is arranged as: the front pair of 45m strides+138m main span+2x30m after pair stride.The beam body adopts the Steel concrete combining structure, and namely main span adopts steel box girder, and pair is striden the employing PC Box Girder Structure.Main span skew back anchor-hold district is positioned at central segmentation band, rope level interval 12m, and pair is striden staying cable anchorage zone and is positioned at the outside, sidewalk, rope level interval 3.75m.Pair is striden suspension cable, and to be arranged as on the beam body anchor point the highest on the near suspension cable anchor point of bridge tower and the tower corresponding, and the rest may be inferred.
Bridge tower is the hinge tower, total length 120m, and the position of lower king-post strut overlaps with the position of the main pier stud of bridge, is hinged between king-tower and the lower king-post strut (also being the main pier stud of bridge).Realize that hinged hinge is comprised of two members up and down, wherein, upper member is connected with the bottom of king-tower, passes through the finish rolling deformed bar anchoring between the top of lower member and lower king-post strut (being a pier stud of bridge foundation).
The stretching process of the corresponding hinge pylon cable-stayed bridge of above-mentioned research material suspension cable is as follows:
Step 1, construction bridges basis (pile foundation, cushion cap and pier stud), finish the construction of finishing lower king-post strut when the beam body sets up, comprise support assembly unit girder steel, simultaneously build forward and backward secondary span concrete beam section at full framing, stretch-draw Concrete Beam Segment prestressing force, finish main span steel case beam and be connected the connection of striding prestressed concrete box girder, remove pair after the beam body connects and stride support, shown in Fig. 3-1;
Behind the hinged king-tower of step 2, construction and lower king-post strut, installation rear pair shown in Fig. 3-2 is striden the suspension cable of a side, pair is striden the hanging cable of a skew back drag-line after A9 suspension cable to the hanging cable direction shown in the A1 suspension cable is finished successively, and king-tower is removed the king-tower support after reaching the precalculated position;
Step 3, finish the hanging cable of main span one skew back drag-line successively, shown in Fig. 3-3, begin successively outside hanging cable (namely according to B1, B2, B3, B4, B5, B6, B7, B8, B9 order) from pin joint suspension cable B1 the most nearby, whenever articulate this suspension cable of immediately stretch-draw behind the skew cables, remove steel box beam bracket corresponding to this suspension cable after arriving design Suo Li, until finish the hanging cable-stretch-draw of the whole suspension cables of main span one side, as shown in Figure 3-4.Pair is striden all suspension cable A1, A2, A3, A4, A5, A6, A7, A8, the A9 of a side all without stretch-draw after in this process.
In the inclined guy cable stretching process of step 3, according to the monitored results to stay cable force, determine whether that this suspension cable is carried out Suo Li to be adjusted, that is: contrast actual measurement stay cable force numerical value and target Suo Li numerical value are adjusted main span skew back Cable power.For example, in the present embodiment for the suspension cable of main span one side, sequentially mend according to B9, B8 as shown in Fig. 3-4, B7, B6, B5, B4, B3, B2, B1 and to draw the accent rope.
To sum up, the suspension cable of the cable stayed bridge that research material is provided according to above-mentioned steps carries out stretch-draw, can save pair and stride skew back drag-line A1～A9 stretch-draw of totally nine pairs of 18 drag-lines, greatly reduce the stay cable force error that is caused by stretch-draw, comparing traditional stay cable of cable-stayed bridge tension construction technology has significant advantage.
Although top invention has been described in conjunction with figure; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; in the situation that does not break away from aim of the present invention, can also make a lot of distortion, these all belong within the protection of the present invention.
Claims (4)
1. method for stretching that cuts with scissors the pylon cable-stayed bridge suspension cable, wherein cable stayed bridge comprises beam body (1), bridge tower and suspension cable (3), described bridge tower consists of by the king-tower (2) that is positioned at beam body (1) top with the rigidly connected lower king-post strut of described beam body (4), adopts hinged between described king-tower (2) and the described lower king-post strut (4); It is characterized in that: the method for stretching of described suspension cable (3) may further comprise the steps:
Step 1, construction bridges basis, described bridge foundation comprises pile foundation, cushion cap and pier stud, finishes beam body (1) and finishes the construction of lower king-post strut (4) when setting up;
The king-tower (2) that step 2, construction and lower king-post strut (4) are hinged, and finish the hanging cable that is positioned at king-tower (2) one skew back drag-lines;
Step 3, finish the hanging cable and the stretch-draw that are positioned at described king-tower (2) opposite side suspension cable, according to the monitored results to stay cable force, determine whether that this suspension cable is carried out Suo Li to be adjusted.
2. the method for stretching of hinge pylon cable-stayed bridge suspension cable according to claim 1, it is characterized in that: in step 1, the position of described lower king-post strut (4) overlaps with the position of one of them pier stud of bridge.
3. the method for stretching of hinge pylon cable-stayed bridge suspension cable according to claim 1 is characterized in that: in step 2 and step 3, the order of hanging cable is to begin successively outwards hanging cable from pin joint suspension cable the most nearby.
4. the method for stretching of hinge pylon cable-stayed bridge suspension cable according to claim 1 is characterized in that: comprise one of following two kinds of situations in step 3:
(1) suspension cable of this side successively all after the hanging cables, is carried out stretch-draw more successively;
(2) whenever hang a skew cables after, immediately this skew cables is carried out stretch-draw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210067088 CN102535348B (en) | 2012-03-14 | 2012-03-14 | Method for tensioning stayed cables of hinged tower cable stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210067088 CN102535348B (en) | 2012-03-14 | 2012-03-14 | Method for tensioning stayed cables of hinged tower cable stayed bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102535348A CN102535348A (en) | 2012-07-04 |
| CN102535348B true CN102535348B (en) | 2013-10-30 |
Family
ID=46343254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210067088 Active CN102535348B (en) | 2012-03-14 | 2012-03-14 | Method for tensioning stayed cables of hinged tower cable stayed bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102535348B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548796B (en) * | 2013-12-30 | 2016-09-11 | Univ Chienkuo Technology | Oblique bridge cable vibration dampers |
| CN108301309A (en) * | 2018-01-11 | 2018-07-20 | 浙江省交通运输科学研究院 | A kind of asymmetric assembled steel cable-stayed bridge bridge end wall bracket sets support construction |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839605B (en) * | 2012-09-25 | 2014-07-23 | 长沙理工大学 | Sag control method for small-sag datum strand |
| CN105155426B (en) * | 2015-09-30 | 2017-01-25 | 中铁港航局集团有限公司 | Method for combining cable-stayed bridge deck cable unreeling manner and air cable unreeling manner under condition of limited space |
| CN105401523B (en) * | 2015-09-30 | 2017-03-22 | 中铁港航局集团有限公司 | Hanging mounting method of long heavy stay cable under space limited condition |
| CN107201721B (en) * | 2016-03-16 | 2018-10-16 | 中铁十五局集团有限公司 | A kind of suspension cable construction method of installation |
| CN110184930B (en) * | 2019-05-27 | 2021-11-02 | 法尔胜泓昇集团有限公司 | Construction method of stay cable of short-tower cable-stayed bridge |
| CN111560831A (en) * | 2020-04-21 | 2020-08-21 | 中铁武汉勘察设计研究院有限公司 | Continuous bridge without fixed support |
| CN113737649B (en) * | 2021-08-19 | 2023-03-14 | 中铁十六局集团第五工程有限公司 | Bridge suspension cable tensioning device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2741896A1 (en) * | 1995-12-04 | 1997-06-06 | Freyssinet Int Stup | IMPROVEMENTS TO PROCESSES FOR REHABILITATING SUSPENDED BRIDGES AND TO BRIDGES THUS REHABILITED |
| JP3356417B2 (en) * | 1999-11-09 | 2002-12-16 | 株式会社エスイー | Construction method and construction structure at the saddle part of the cable, and bridge |
| CN101457514A (en) * | 2008-12-31 | 2009-06-17 | 广东省基础工程公司 | Cable stayed bridge construction method |
| CN201581344U (en) * | 2009-12-31 | 2010-09-15 | 中铁二院工程集团有限责任公司 | Double track railway steel truss cable-stayed bridge |
| CN201648942U (en) * | 2010-02-02 | 2010-11-24 | 中冶建筑研究总院有限公司 | Combined cable-truss stretch-draw integral structure for mast stayed-cables and suspension cables |
| CN102121234A (en) * | 2011-04-23 | 2011-07-13 | 中铁三局集团有限公司 | Quick construction method of two-tower five-span steel truss girder cable-stayed bridge |
-
2012
- 2012-03-14 CN CN 201210067088 patent/CN102535348B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2741896A1 (en) * | 1995-12-04 | 1997-06-06 | Freyssinet Int Stup | IMPROVEMENTS TO PROCESSES FOR REHABILITATING SUSPENDED BRIDGES AND TO BRIDGES THUS REHABILITED |
| JP3356417B2 (en) * | 1999-11-09 | 2002-12-16 | 株式会社エスイー | Construction method and construction structure at the saddle part of the cable, and bridge |
| CN101457514A (en) * | 2008-12-31 | 2009-06-17 | 广东省基础工程公司 | Cable stayed bridge construction method |
| CN201581344U (en) * | 2009-12-31 | 2010-09-15 | 中铁二院工程集团有限责任公司 | Double track railway steel truss cable-stayed bridge |
| CN201648942U (en) * | 2010-02-02 | 2010-11-24 | 中冶建筑研究总院有限公司 | Combined cable-truss stretch-draw integral structure for mast stayed-cables and suspension cables |
| CN102121234A (en) * | 2011-04-23 | 2011-07-13 | 中铁三局集团有限公司 | Quick construction method of two-tower five-span steel truss girder cable-stayed bridge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI548796B (en) * | 2013-12-30 | 2016-09-11 | Univ Chienkuo Technology | Oblique bridge cable vibration dampers |
| CN108301309A (en) * | 2018-01-11 | 2018-07-20 | 浙江省交通运输科学研究院 | A kind of asymmetric assembled steel cable-stayed bridge bridge end wall bracket sets support construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102535348A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102535348B (en) | Method for tensioning stayed cables of hinged tower cable stayed bridge | |
| CN102108676B (en) | Arch bridge construction method for combined beam-steel arch combined system | |
| CN100543235C (en) | The method and system of erecting steel trusses by stay cable auxiliary complete cantilever | |
| CN109235285B (en) | Cantilever pouring system and construction method for reinforced concrete arch bridge of large-span railway | |
| CN100543234C (en) | A kind of closure method of large-span continuous steel truss arch | |
| CN101793010B (en) | Arch-included integral pushing method for large-tonnage multi-span combined arch bridge | |
| AU2007288151B2 (en) | Tilt-lift method for erecting a bridge | |
| CN102535343A (en) | Method for erecting girder on top of main tower mound of steel truss girder cable-stayed bridge | |
| CN102535327B (en) | Through prestress steel truss and concrete combined continuous steel structure bridge and construction method thereof | |
| CN103821075B (en) | Long span oblique pull assembly type steel bridge on highway | |
| CN201106155Y (en) | Inclined guy cable auxiliary full cantaliver crane trussed steel beam device | |
| CN104695341A (en) | Non-self-balanced beam string structure for reinforcing large-span continuous beam bridge | |
| CN109750600B (en) | Construction method of asymmetric cable crane | |
| CN107190627A (en) | Part earth anchored suspension bridge and its construction method | |
| CN203247495U (en) | Pedestrian rope bridge | |
| CN109898421B (en) | Wind-resistant structure and wind-resistant method for integrally lifting arch rib of steel box arch bridge | |
| CN104313994A (en) | Hybrid girder and extradossed cable-stayed bridge without back-cables | |
| CN103147405B (en) | Method for erecting steel girder of cable-stayed bridge with diagonal main trusses | |
| CN113235389A (en) | Ground anchor type suspension bridge structure suitable for special terrain | |
| CN104264578A (en) | Steel-concrete combining bridge of self-anchored suspension cable-cable-stayed cooperative system | |
| CN212714544U (en) | Rhombus is hung basket and is retreated and demolishd horizontal extension reinforcement construction structure | |
| CN112554043A (en) | Transverse self-balancing antisymmetric cable-stayed bridge structure system | |
| CN210636294U (en) | Cable-stayed bridge of semi-floating truss type bridge tower | |
| CN109763417B (en) | Cable-stayed steel truss cooperative system bridge | |
| CN207452680U (en) | A kind of curve chord steel truss is put more energy into continuous beam |
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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee after: Tianjin municipal engineering design and Research Institute Co.,Ltd. Address before: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee before: TIANJIN MUNICIPAL ENGINEERING DESIGN & Research Institute |
|
| CP01 | Change in the name or title of a patent holder |