CN101792999A - Multi-suspended-pylon cable-stayed bridge - Google Patents
Multi-suspended-pylon cable-stayed bridge Download PDFInfo
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- CN101792999A CN101792999A CN201010117899A CN201010117899A CN101792999A CN 101792999 A CN101792999 A CN 101792999A CN 201010117899 A CN201010117899 A CN 201010117899A CN 201010117899 A CN201010117899 A CN 201010117899A CN 101792999 A CN101792999 A CN 101792999A
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Abstract
The invention discloses a multi-suspended-pylon cable-stayed bridge and aims to provide a bridge for constructing a larger span and is suitable for linking multiple bridges for constructing an over-long distance bridge or used for constructing an elevated trackway transportation system and more suitable for constructing a small and medium size bridge. The multi-suspended-pylon cable-stayed bridge comprises a plurality of branch spans with different heights, top cables 1, bottom cables 6 and force transmission cables 4, wherein the plurality of branch spans consist of suspended branch pylons 3 and are added in the middle part of the cable-stayed bridge; the top cables 1 are fixed to two main pylons 2 and the tops of all branch pylons and sagged in the shape of a fold line; the bottom cables are fixed to the root parts of all the branch pylons; the bottom ends of the force transmission cables are fixed to the bottom ends of all the branch pylons, and the top ends are fixed to the top of a closest branch pylon or a main pylon towards the direction of a closest main pylon; and the top ends of all stayed-cables 5, the bottom ends of which are uniformly fixed to a girder 6, are all fixed to the top of a closest branch pylon or a main pylon facing towards the direction of a closest main pylon.
Description
Technical field
The present invention relates to a kind of constituted mode of suspension bridge, especially by one be installed in each unsettled branch tower of bridge floor middle part and king-tower cat head with the sagging acrochordal of broken line shape and be installed in the bridge that power transmission rope, suspension cable and other members of each unsettled branch tower and king-tower one side are formed, i.e. multi-suspended-pylon cable-stayed bridge.
Background technology
The current bridge of striding the footpath greatly that has built up substantially all is a cable stayed bridge.The basic characteristics of cable stayed bridge are relatively simple for structure, and the physical dimension of each member such as king-tower, suspension cable is all with the proportional increase of increase of striding the footpath.The size of present large-scale cable stayed bridge is the convergence limit, and the bigger cable stayed bridge difficulty directly of striding of construction is very big again, and between each cable stayed bridge, should not directly interlink again, is difficult to utilize cable stayed bridge to realize the over distance leap.
State Patent Office's issue on December 23rd, 2009 bulletin has been authorized a patent ZL2006100464158 " the Sarasota combined support system of bridge ", this patent has proposed the technical scheme of setting up several unsettled branch towers at cable stayed bridge bridge floor middle part, for improving the span ability of cable stayed bridge, provide strong technical support.This patent specifies the line style of acrochordal after deliberation, and suspension cable suspending way etc. still has the space of further improvement and development.
Summary of the invention
Purpose of the present invention, patented technology as described " the Sarasota combined support system of bridge " is the same, between the two groups of suspension cables in the middle part of cable stayed bridge, setting up one or more unsettled branches strides, do not increasing, even reduce significantly under the situation of king-tower height, increasing cable stayed bridge significantly strides on the basis in footpath, doing some again improves, make the enabling capabilities of system and stronger, and be suitable for interlinking of many bridges, the raising span ability the adaptive capacity of environment and weather, build the over-long span skip distance from bridge, and be more suitable for building middle-size and small-size bridge and aerial conveyor communications and transportation system with this technology.
For the technical scheme that realizes above-mentioned target is: fixed mount is hung a sagging acrochordal (1) between the cat head of two king-towers (2), on bridge floor (6) height between two king-towers (2), the hypochord (6) of a level is set, on acrochordal (1) and the corresponding position of hypochord (6), each is anchored at top or low side of a branch tower (3), and unsettled, upright, the root of each minute tower does not land.Middle part each minute tower height degree reduces one by one from two king-towers to bridge floor, does not highly wait, and king-tower is the highest, and near the branch tower height degree the bridge floor mid point is minimum.Be anchored at the acrochordal of each column overhead, be sagging broken line type, the top of tower of every tower all is the turning point of this broken line, from the bridge floor center to two king-towers, deflection angle in each column overhead does not wait yet, spacing between each approaching mutually per two tower does not wait yet, and its objective is that the absolute value of the slope that keeps each power transmission rope (4) and two the suspension cables the longest in bridge floor mid point both sides is equal or approaching.Each divides each bottom with a power transmission rope (4) of low side of tower to be anchored at.All power transmission ropes, with certain mid point in the middle part of the bridge floor of setting is the boundary, is divided into left and right sides two parts, and the top of every power transmission rope of every part is without exception towards a nearest king-tower direction, anchor to a nearest branch column overhead, till anchoring to this king-tower cat head near the top of the power transmission rope of king-tower.Each divides the top of tower and every king-tower, and each top with some suspension cables (5) is anchored at.The bottom of each bar suspension cable of per minute column overhead anchors between immediate two minutes towers or near on the branch tower of bridge floor mid point and the bridge floor girder (6) between this mid point towards described bridge floor mid point direction without exception with being evenly distributed respectively.The top is anchored at the bottom of the suspension cable on king-tower top, be divided into two parts, a part be anchored at with being evenly distributed and this king-tower and a nearest branch tower between the bridge floor girder on, the bottom of another part suspension cable anchors on the bridge floor girder in this king-tower outside with being evenly distributed.Respectively there is a dorsal funciculus (7) at the full-bridge two ends, and the two ends of every dorsal funciculus anchor to respectively between the king-tower cat head and buried underground large-scale anchor block (8) of position.
For realizing the extra long distance leap, with many multi-suspended-pylon cable-stayed bridges, interlink at each king-tower place, the linking point place only keeps a king-tower, and is shared by two bridges, and the acrochordal of two bridges is mutually permanently connected.When bridge moves towards to turn, in the corner outside, backguy is set, when corner is big, splits into a plurality of little angles, backguy has all been done in the outside, every angle.
The identical point of beneficial effect of the present invention and patent of invention " the Sarasota combined support system of bridge " is: 1, increased several branches at the cable stayed bridge middle part and striden, reduced the rise-span ratio of king-tower and deck system, improved the enabling capabilities of system, to build bigger bridge of striding the footpath; 2, because the suspension cable sling point is intensive, thereby moment of flexure and shearing that girder bears are very little, add that hypochord is fixedly attached to the girder multiple spot, balance the lateral deflection power of bridge floor girder, so the size of bridge floor girder can be done very for a short time, make bridge become very thin light and handy.
The present invention is increasing following beneficial effect again on the basis that has passed on beneficial effect recited above: 1, the suspension cable between each tower be fixedly mounted on without exception each tower comprise king-tower and each minute tower towards between the each point of each column overhead of bridge floor mid point direction one side and bridge floor girder, partly alleviate the axle power of dividing tower and power transmission rope to bear, further improved the enabling capabilities of system; 2, with the sagging acrochordal of broken line shape, with the vertical stress component of self, partly shared each minute tower and the axle power born of power transmission rope, further improved the enabling capabilities of system, further improved the adaptive capacity of system to natural environment and climate; 3, remove dorsal funciculus at the king-tower place and can realize that many bridges interlink, build the bridge of super large span ability; With middle-size and small-size bridge of this technology construction preferably and aerial conveyor communications and transportation system; 5, suspension cable is consistent with the direction that the power transmission rope tilts, rope face neat appearance.
Description of drawings
Fig. 1 is multi-suspended-pylon cable-stayed bridge embodiment figure of the present invention.
Fig. 2 is many multi-suspended-pylon cable-stayed bridges of the present invention, and embodiment figure interlinks.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is by 1, one hypochord 6 of 2, one acrochordals of two king-towers, several minutes tower 3, some power transmission ropes 4, many suspension cables 5, bridge floor 6,6, two dorsal funciculus 7 of girder and two earth anchors 8 are formed, and hypochord, girder, bridge floor are all represented with same symbol 6 on same horizontal plane.
The two ends and each the corresponding point that are the sagging acrochordal of broken line shape 1, each minute tower 3 the cat head that is anchored at two king-towers 2 respectively and does not highly wait, two king-towers 2 are the highest, from two king-towers 2 to the bridge center, each tower height degree reduces one by one, and the spacing of each tower comprises that the two fens towers 3 in bridge floor middle part and the spacing of bridge floor mid point reduce one by one.Acrochordal 1 all is one section straight line between per two adjacent towers, at each cat head a deflection angle is arranged all, reduces gradually to bridge center deflection angle from king-tower.So form a sagging arc broken line.Hypochord 6 flatly is anchored at each minute tower bottom of 3, and fixedlys connected with girder 6 multiple spots.Each minute, tower 3 was all unsettled upright, and bottom and bridge floor are contour, and root does not land.The bottom of each power transmission rope 4, respectively be anchored at the bottom of a branch tower 3, the top of every power transmission rope all anchors to the top of a nearest branch tower 3 towards the direction of a nearer king-tower 2, near the top of the power transmission rope 4 of king-tower 2, directly anchor to the cat head of this king-tower 2.The bottom of all suspension cables 5 is anchored on whole bridge floor girder 6 each corresponding some position with all being evenly distributed, and with bridge floor certain point of middle part and each minute tower 3, king-tower 2 be the boundary, be divided into some groups.The top of every group of suspension cable 5, all the concentrated area anchors to the cat head of a nearest branch tower 3 or king-tower 2 towards the direction of a nearest king-tower 2 respectively.The two ends of every dorsal funciculus 7 are anchored at respectively between the cat head and anchor block 8 of king-tower 2 of position.
Fig. 2 is an another embodiment of the invention: many multi-suspended-pylon cable-stayed bridges, and 2 places interlink at king-tower, and per two bridging contact places only keep a king-tower 2, and are shared by two bridges.The root of each king-tower 2 lands, and underground have a basis, being uneven in length of the multi-suspended-pylon cable-stayed bridge that each is nearer mutually, and each bridge divides the quantity of tower 3 also not require must equate that purpose is when having prevented that mobile load from occurring, to cause system resonance.Each bridge acrochordal 1 is fixedly connected at each bridge linking point place.Must backguy be installed in the corner outside when route of many multi-suspended-pylon cable-stayed bridges is turned, when big as if corner, corner should be decomposed into several less angles, place backguy is adorned in the outside, every angle.
According to application purpose, environment of living in and esthetic requirement; utilize the art of this patent, king-tower height in the middle of also can forming, the two ends king-tower is low; or the not contour asymmetric multi-suspended-pylon cable-stayed bridge of two king-towers and other various combining structure forms, these are all within the protection domain of this patent.
Claims (9)
1. the multi-suspended-pylon cable-stayed bridge of a suspension bridge is characterized in that: acrochordal (1) is a sagging broken line that is fixedly mounted on each king-tower (2) that the height unequal-interval also do not wait and branch tower (3) top; Except that the suspension cable (5) that is installed in the king-tower outside, comprise that king-tower (2) and suspension cable (5) between each tower of branch tower (3) are fixedly mounted on each tower without exception and put a side towards the bridge center; Many the multi-suspended-pylon cable-stayed bridges that vary in size interlink and form the over distance bridge, when bridge is turned, will establish backguy in the corner outside.
2. the tower that height according to claim 1 does not wait is characterized in that: king-tower (2) is the highest, and the height from king-tower (2) to bridge center position each minute tower (3) reduces one by one, and the height near minute tower 3 of bridge center point is minimum.
3. each king-tower (2) that spacing according to claim 1 does not wait with divide tower (3), it is characterized in that: along with the spacing of each tower of reduction of each minute tower (3) height, and the spacing that is positioned at Liang Fenta (3) and this central point about the bridge mid point also reduces one by one.
4. acrochordal according to claim 1 (1) is a sagging broken line, it is characterized in that acrochordal (1) comprises king-tower (2) and divides the cat head of tower (3) that a deflection angle is all arranged at each tower, and the angle of each deflection angle does not wait, the deflection angle maximum of king-tower (2) cat head is near the deflection angle minimum of the cat head of the branch tower (3) at bridge center.
5. the suspension cable (5) between each tower according to claim 1, be fixedly mounted on the side of each tower without exception towards the bridge center position, it is characterized in that: the bottom of all suspension cables (5), be anchored on each corresponding point of bridge floor girder (6) with all being evenly distributed, the top of every suspension cable (5), same direction towards a nearest king-tower (2), anchor to the cat head of a nearest branch tower (3), be positioned at the top of the suspension cable (5) of king-tower (2) both sides, directly anchor to the cat head of king-tower (2).
6. many multi-suspended-pylon cable-stayed bridges according to claim 1 interlink, and it is characterized in that: it is shared by two bridges only to keep a king-tower (2) at the linking point place of two adjacent two bridges.
7. interlinking of many multi-suspended-pylon cable-stayed bridges according to claim 1 is characterized in that: the acrochordal of two bridges (1) is in the two bridge links place composition one that is mutually permanently connected.
8. when bridge according to claim 1 is turned, in the corner outside backguy is housed, it is characterized in that: corner should be decomposed into a plurality of little angles when big, and place backguy is all adorned in the outside, every angle.
9. interlinking of many multi-suspended-pylon cable-stayed bridges that vary in size according to claim 1 is characterized in that: two king-tower spacings of the multi-suspended-pylon cable-stayed bridge that each mutual alignment is nearer do not wait, and the branch tower number of bridge floor equates or do not wait.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010117899A CN101792999A (en) | 2010-03-05 | 2010-03-05 | Multi-suspended-pylon cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010117899A CN101792999A (en) | 2010-03-05 | 2010-03-05 | Multi-suspended-pylon cable-stayed bridge |
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| CN101792999A true CN101792999A (en) | 2010-08-04 |
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| CN201010117899A Pending CN101792999A (en) | 2010-03-05 | 2010-03-05 | Multi-suspended-pylon cable-stayed bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498837A (en) * | 2016-11-02 | 2017-03-15 | 西南交通大学 | A kind of novel bridge and its construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002086241A1 (en) * | 2001-04-18 | 2002-10-31 | Jong-Ho Lee | Building construction method using plane lattice typed cable structure |
| CN2885932Y (en) * | 2005-12-31 | 2007-04-04 | 厦门高格桥梁景观设计研究中心 | Large-span multi-pylon cable stayed bridge |
| CN101063296A (en) * | 2006-04-26 | 2007-10-31 | 马兴运 | Tope tower combined support system of bridge |
| CN201151868Y (en) * | 2008-01-29 | 2008-11-19 | 张国志 | Single tower oblique pulling type overbridge |
-
2010
- 2010-03-05 CN CN201010117899A patent/CN101792999A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002086241A1 (en) * | 2001-04-18 | 2002-10-31 | Jong-Ho Lee | Building construction method using plane lattice typed cable structure |
| CN2885932Y (en) * | 2005-12-31 | 2007-04-04 | 厦门高格桥梁景观设计研究中心 | Large-span multi-pylon cable stayed bridge |
| CN101063296A (en) * | 2006-04-26 | 2007-10-31 | 马兴运 | Tope tower combined support system of bridge |
| CN201151868Y (en) * | 2008-01-29 | 2008-11-19 | 张国志 | Single tower oblique pulling type overbridge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106498837A (en) * | 2016-11-02 | 2017-03-15 | 西南交通大学 | A kind of novel bridge and its construction method |
| CN106498837B (en) * | 2016-11-02 | 2017-12-05 | 西南交通大学 | A kind of bridge and its construction method |
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Application publication date: 20100804 |