CN2077877U - New steel cable bridge - Google Patents
New steel cable bridge Download PDFInfo
- Publication number
- CN2077877U CN2077877U CN 90201894 CN90201894U CN2077877U CN 2077877 U CN2077877 U CN 2077877U CN 90201894 CN90201894 CN 90201894 CN 90201894 U CN90201894 U CN 90201894U CN 2077877 U CN2077877 U CN 2077877U
- Authority
- CN
- China
- Prior art keywords
- bridge
- cable
- bridge floor
- floor rope
- reversed
- 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.)
- Withdrawn
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a new steel cable bridge, belonging to a steel cable bridge with the structure of reversed tension. A bridge deck cable achieves the sag of live load with reversed tensile force. After 'pre-tension' is completed, small quantity of deformation can loose a reversed tension cable caused by that the live load (vehicles) runs on the bridge, which achieve the 'solidifying' of the bridge. The utility model mainly comprises a tension cable (1), a draw rod (2), a beam (3), the bridge deck cable (4), a bridge plate (5) and a bridge bar (6). The reversed tension cable and the draw rod are arranged on the lower part of the bridge deck cable, and the draw rod is connected with the bolt of the reversed tension cable. The stability and the safety of the bifilar drive (opposite drive) of motor cars can be achieved. The utility model has convenient assembly and disassembly, being suitable for the span of gullies and turbulently flowing rivers, temporary construction, combat readiness and transportation.
Description
Novel steel cable bridge is a kind of zanjon, valley and rapid river crossed over, and removable moving moves, cheap steel cable bridge.
Cable bridge all is one of important bridge kind since ancient times, because it is convenient to cross over deep valley and rapid river especially, can be different during construction because of landform, and do not need bridge pier, can also remove after at this point using and not go to use.Southwestern mountain area in China has promptly had many seat materials, cable bridge that structure is different far away from the Ming and Qing Dynasty generation, and the Dadu River steel cable bridge that the Qing Dynasty builds is exactly wherein famous one.Enter since modern, because car weight strengthens, the speed of a motor vehicle improves, it is too soft that cable bridge seems, so seldom adopt on highway.Much more external adopt reinforced concrete bridges, steel bridge, Cable stayed bridge etc., but these bridges must be set up tower crane or bridge pier, the cost height, the construction period is long, dismounting is inconvenient, the advantage of the cable bridge of therefore can not dieing out eventually.In recent years both at home and abroad still constantly the someone design and build can the mistake truck cable bridge, the weakness that these bridges are the most fatal is that lateral stability is poor, vehicle must travel along the center line of bridge floor, otherwise the side direction inclination angle is excessive, can not guarantee traffic safety.Actual measurement shows, when vehicle's center of gravity departed from 22 centimetres in bridge floor center line, the side direction inclination angle of bridge floor promptly reached 4 ° 30 '--this has been the maximum side direction inclination angle that allows.Obviously, it can only have a track, if want vehicle to split simultaneously, must set up two bridges.Next was the distortion excessive (when the vehicle of 20 tons of weights was passed a bridge, the span centre sag of long 200 meters cable way bridges increased to 5.7 meters by 3.9 meters) of Che Shiqiao, influenced road speed, can not satisfy the requirement of highway with bridge.Owing to these reasons, also fail to obtain general employing until now.
The design's purpose is to adopt to add down to open the method that cable wire is realized load transfer, makes the bridge floor rope reach sag when mobile load is arranged with tension force.When mobile load, mobile load (vehicle) weight has replaced the pulling force of vang, realizes " curing " of cable bridge, guarantees two-wire (splitting) train stability safety on the bridge.
The design's principle is: in order to make soft steel cable bridge " curing ", the method that the utility model is taked to add down vang and realized load transfer.Promptly be added with some and fall vangs 1 under the bridge floor rope of carrying, before mobile load (vehicle) is not gone up bridge, by the pull bar that falls vang and link to each other with crossbeam, the bridge floor rope is drawn into the state behind the bridge on the mobile load no better than, this step work is called " in advance ".Pre-open finish after, when full vehicle ' of carrying is on bridge, because the effect of its weight, the bridge floor rope has sinking slightly, under this sedimentation slightly, the vang that falls is promptly loosened or is partly loosened, and makes the disappearance of falling tension force or only stays seldom part, be that the suffered load that falls to open of bridge floor rope is replaced by mobile load, total load has only increased little quantity.Because pre-Zhang Qiaoyi is in the curve state that mobile load is arranged substantially, load transfer has taken place again behind the bridge on the mobile load, so bridge type has only very little variation, also can not keep opening in advance bridge type even vehicle does not travel on the center line of bridge, cross dip is no more than safe range, has realized the requirement that two-wire travels.
Figure of description 1 is the design's a structural representation.It is mainly by vang 1, pull bar 2, crossbeam 3, bridge floor rope 4, bridge plate 5, bridge railing 6 are formed.The span of bridge can be by 25 meters to 350 meters, and bridge pier (yet can establish middle bridge pier if span increases again) is not established in the centre.Bridge deck width can be decided on the needs that are open to traffic by 2 meters to 8 meters.Bridge floor rope 4 is fixed on the anchor ingot of two sides, and tensioning (pre-open) is to about 17/1000ths (the light bridge floor states that do not add crossbeam, bridge plate etc.) of the span of mid point sag, and the bridge floor rope is the main load-carrying unit of bridge.Crossbeam 3 is clamped bridge floor rope 4 from upper and lower faces, makes it fixed-site, and the two ends of crossbeam link to each other with downward pull bar 2, and the pillar of bridge railing 6 also can be installed simultaneously.The lower end of pull bar with fall vang and link to each other.Behind bridge floor rope tensioning, by tightening up down vang, the bridge floor rope is drawn into the sag of full load once more, and at this moment whole bridge type sees from the side and be the X type that this moment, bridge was by " curing ".Bridge plate 5 is laid on the bridge floor rope, does to be open to traffic and pedestrian's usefulness.The bed rearrangement bridge can be transported to the use scene earlier and install and use with being steel work timber or the reinforced concrete thin plate except that bridge deck after factory process is finished, also removable adjourning do not reinstalled use.
The utility model and existing cable way bridge structurally difference are: 1, be added with down vang and pull bar, and the bridge floor rope be drawn into the sag of full load by them.Behind bridge on the vehicle, the pulling force of vang loosens because of the elastic deformation of bridge floor rope, and bridge floor is substantially no longer sagging, and the tension force of bridge floor rope is also basicly stable.2, the effect of crossbeam and shape change.The crossbeam of original cable bridge is positioned under the bridge floor rope, and two ends are connected on the steadying line, and it act as the lateral stability of utilizing steadying line to strengthen the bridge floor rope.The design has cancelled steadying line, and crossbeam blocks the bridge floor rope from upper and lower faces, is to pass to the parts of bridge floor rope falling the pulling force of vang.From stressing conditions, present crossbeam is subjected to is down tension force, also is pretension.Behind the bridge, the stressed of beam reduces on the contrary, even do not stress fully on the vehicle.3, be added with downward pull bar and fall vang and link to each other.Pull bar is material with the steel, and the length of each bar is different with the position at its place, and general purpose is to guarantee that the bridge floor rope is subjected to uniformly pulling force downwards.
Embodiment:
1, the long 200m of bridge, wide 7.5m(band sidewalk)
2, title material
The D of falling vang type wire rope, 31
Pull bar 45# steel (round steel)
Crossbeam channel-section steel 18#
Bridge floor rope D type wire rope, 31
Bridge deck timber
The mid point sag is 1:36 with the ratio of span when 3, being fully loaded with (20 tons of cars are at span centre)
4, maximum load-carrying capacity: 20 tons
5, as the semipermanent road bridge.
Claims (2)
1, a kind of novel steel cable bridge, it mainly is made up of crossbeam, bridge floor rope, bridge deck, bridge railing, pull bar etc., except that bridge deck can be with timber or the reinforced concrete thin plate, be steel work, the two ends of crossbeam link to each other with downward pull bar, the bridge floor rope is anchored on the anchor ingot of two sides, and bridge deck are laid and are fixed on the bridge floor rope, it is characterized in that:
(1), below bridge floor rope 4, add down vang 1 and pull bar 2, by them bridge floor rope 4 is finished the pre-process of opening,
(2), crossbeam 3 clamps bridge floor rope (4) from upper and lower surface,
(3), the lower end of pull bar with fall vang and link to each other.
2, novel steel cable bridge as claimed in claim 1 is characterized in that the pre-Zhang Chuidu (mid point sag) of bridge floor rope 4 is 17/1000ths of spanning degree, and the sag of full load is 30 sixths of spanning degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201894 CN2077877U (en) | 1990-02-17 | 1990-02-17 | New steel cable bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90201894 CN2077877U (en) | 1990-02-17 | 1990-02-17 | New steel cable bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2077877U true CN2077877U (en) | 1991-05-29 |
Family
ID=4883407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90201894 Withdrawn CN2077877U (en) | 1990-02-17 | 1990-02-17 | New steel cable bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2077877U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758396A (en) * | 2011-04-25 | 2012-10-31 | 丁庆革 | Modularized composite plastic steel cable bridge |
| CN102877413A (en) * | 2012-09-18 | 2013-01-16 | 中交二公局第六工程有限公司 | Construction technology for large-size cableway bridge engineering |
| CN103015305A (en) * | 2011-09-21 | 2013-04-03 | 董兰田 | Double opposite arch structure bridge |
| CN103485271A (en) * | 2013-09-23 | 2014-01-01 | 浙江省交通规划设计研究院 | Pedestrian prestress cable truss bridge in mountainous rural area |
| CN105178169A (en) * | 2015-10-10 | 2015-12-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Reservoir two-bank terrestrial vertebrate passing structure and construction method thereof |
| CN105178167A (en) * | 2015-06-12 | 2015-12-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Double-layer steel cable bridge and erection method thereof |
| CN105297672A (en) * | 2015-10-10 | 2016-02-03 | 中国电建集团贵阳勘测设计研究院有限公司 | Reservoir surface terrestrial vertebrate passing structure and construction method thereof |
| CN105887677A (en) * | 2014-05-17 | 2016-08-24 | 景天虎 | Traffic cableway bridge reinforced concrete bridge deck slab |
| CN108837518A (en) * | 2018-06-08 | 2018-11-20 | 河南硕平旅游发展有限责任公司 | The construction method of the soft bridge of recreation ground and amusement facility and soft bridge and amusement facility |
| CN110258776A (en) * | 2019-07-24 | 2019-09-20 | 陈菲 | A kind of prestressed bridge and its manufacturing method and application |
-
1990
- 1990-02-17 CN CN 90201894 patent/CN2077877U/en not_active Withdrawn
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758396A (en) * | 2011-04-25 | 2012-10-31 | 丁庆革 | Modularized composite plastic steel cable bridge |
| CN103015305A (en) * | 2011-09-21 | 2013-04-03 | 董兰田 | Double opposite arch structure bridge |
| CN102877413A (en) * | 2012-09-18 | 2013-01-16 | 中交二公局第六工程有限公司 | Construction technology for large-size cableway bridge engineering |
| CN102877413B (en) * | 2012-09-18 | 2014-07-23 | 中交二公局第六工程有限公司 | Construction technology for large-size cableway bridge engineering |
| CN103485271A (en) * | 2013-09-23 | 2014-01-01 | 浙江省交通规划设计研究院 | Pedestrian prestress cable truss bridge in mountainous rural area |
| CN103485271B (en) * | 2013-09-23 | 2015-11-04 | 浙江省交通规划设计研究院 | A kind of mountainous rural area People's Bank of China prestressed cable-truss bridge |
| CN105887677A (en) * | 2014-05-17 | 2016-08-24 | 景天虎 | Traffic cableway bridge reinforced concrete bridge deck slab |
| CN105178167A (en) * | 2015-06-12 | 2015-12-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Double-layer steel cable bridge and erection method thereof |
| CN105297672A (en) * | 2015-10-10 | 2016-02-03 | 中国电建集团贵阳勘测设计研究院有限公司 | Reservoir surface terrestrial vertebrate passing structure and construction method thereof |
| CN105178169A (en) * | 2015-10-10 | 2015-12-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Reservoir two-bank terrestrial vertebrate passing structure and construction method thereof |
| CN105297672B (en) * | 2015-10-10 | 2017-11-21 | 中国电建集团贵阳勘测设计研究院有限公司 | Reservoir surface terrestrial vertebrate passing structure and construction method thereof |
| CN108837518A (en) * | 2018-06-08 | 2018-11-20 | 河南硕平旅游发展有限责任公司 | The construction method of the soft bridge of recreation ground and amusement facility and soft bridge and amusement facility |
| CN110258776A (en) * | 2019-07-24 | 2019-09-20 | 陈菲 | A kind of prestressed bridge and its manufacturing method and application |
| CN110258776B (en) * | 2019-07-24 | 2024-05-14 | 陈菲 | Prestressed bridge and manufacturing method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |