CN201605508U - Completely unblocked composite structure comprising eight single bridges in right line-system crossroads - Google Patents
Completely unblocked composite structure comprising eight single bridges in right line-system crossroads Download PDFInfo
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- CN201605508U CN201605508U CN2010291220060U CN201029122006U CN201605508U CN 201605508 U CN201605508 U CN 201605508U CN 2010291220060 U CN2010291220060 U CN 2010291220060U CN 201029122006 U CN201029122006 U CN 201029122006U CN 201605508 U CN201605508 U CN 201605508U
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Abstract
The utility model relates to a completely unblocked composite structure comprising eight single bridges at right line-system crossroads, belonging to a completely unblocked composite structure capable of realizing direct movement and left turn through eight independent non-crossed single-layer arch bridges at crossroads. The completely unblocked composite structure comprises four single bridges for direct movement and four single bridges for left turn, wherein the middle sections of the arc-shaped bent single bridges for direct movement are right protruded arc-shaped bent sections protruding outwards to the right side; the middle sections of the large arc-shaped bent single bridges for left turn are left-turn large arc-shaped bent sections firstly protruding to the right side and then protruding to the opposite face; one arc-shaped single bridge for direct movement is arranged at the outer side of the arc-shaped bent position of one large arc-shaped single bridge for left turn to form a composite single bridge; four composite single bridges are formed; and the composite single bridges in the front are arranged at the outer sides of the arc shapes of the composite single bridge at the back according to the counterclockwise sequence. The utility model has the advantage of realizing non-crossed occupied complete unblocking of direct movement and left turn through four single bridges for direct movement and four single bridges for left turn. Compared with the existing two-layer and three-layer overpasses at the crossroads, the completely unblocked composite structure greatly reduces bridge constructing cost and reduces the heights of the overpasses.
Description
Technical field
The utility model belongs to the traffic Bridge Design of arterial highway right-angled intersection, particularly eight independently non-cross individual layer arch bridge just can realize keeping straight on and the complete unimpeded combining structure of left-hand bend.
Background technology
At present, the traffic of international and domestic usual friendship crossroad, arterial street is very crowded, often stops up, and is each metropolitan common fault of the whole world.Tracing it to its cause, is because the two road usual friendship, and on the crosspoint, two road are overlapping to have become a road, and the vehicle on the two road can only a shared road on node, has lost the path resource of half, is certain to influence road speed and vehicular traffic.Add the mixed row of pedestrian, bicycle and motor vehicle, the result that is inevitable blocks up.In order to solve this difficult problem, people have expected widening the road surface, increase the quantity of crossing runway.But the road surface can not infinitely be widened, the unlikely runway that doubles.Even accomplished that the track is double, but bicycle lane, greenbelt and pavement will have been arranged, still to wait traffic lights, the contradiction of the mixed row of people's car is still arranged, therefore can not tackle the problem at its root.People have expected again grade separation list bridge, but in existing grade separation list bridge theory, it is very difficult accomplishing fully unimpeded, at first is to want multiple-layer stand presentate bridge, more will take very big land area and space, also will spend the very high cost of building.
For the right line system traffic, present crossroad grade separation list bridge is the most scabrous be this road left-hand rotation car to cross over the right and opposite road vehicle intersect the road occupying problem, be to solve to intersect the road occupying problem, left changing lane will be used second layer grade separation, even the 3rd layer of grade separation.Whenever adding one deck grade separation will increase the height of grade separation list bridge greatly, rolls up the construction cost of single bridge, rolls up the length of secondary single bridge, rolls up the floor space of grade separation list bridge.
The applicant of this patent is at Chinese patent application 200920078443.7 " intersection is from straddle type right-hand rotation grade separation list bridge ", only solve right-hand rotation and rotating problem with disclosed grade separation list bridge construction in two files of Chinese patent application 200920078459.8 " revolution grade separation list bridge ", do not related to the problem of keeping straight on and turning left.And the most scabrous intersection road occupying problem of turning left just and keeping straight on of present grade separation list bridge in existing grade separation list bridge theory, for the problem of the mutual intersection road occupying that solves this left-hand rotation and craspedodrome, must be used second layer grade separation, even the 3rd layer of grade separation.Whenever add one deck grade separation and will increase height greatly, roll up the construction cost of single bridge, roll up the length of secondary single bridge, roll up the floor space of grade separation list bridge, thereby cause the most crossroads in the urban road network can't build grade separation list bridge at all, stay unnumbered usual friendship fast knot, cause blocking up of urban traffic, become the common fault in each flourishing city, the whole world.The purpose of this patent is exactly the solution that proposes for this world-famous puzzle, solves specially individual layer grade separation list bridge and realizes straightgoing vehicle and the car unblocked without hindrance problem of left-hand rotation.
Chinese patent 200720043390.6 " the complete unimpeded grade separation list bridge of individual layer " discloses a kind ofly to be established at the parting of the ways a combining structure of directly striding Dan Qiao and an annular bridge and unites single bridge.Its shortcoming: one is that a four crossway has two kinds of driving standards, and the every four crossway of crossing of driver will be seen clearly the operation sign of drawing on the ground, in case had little time lane change when not seeing clearly or seeing clearly, can cause carrying out lane change because of the crossing and cause traffic congestion or accident.The 2nd,---turning left,---the road division standard of right-hand rotation is different from the road of existing left-hand rotation---craspedodrome---right-hand rotation and divides standard from encircling interior craspedodrome outside ring, this makes the driver divide the standard driving by the road of existing left-hand rotation---craspedodrome---right-hand rotation easily before away from the cross mouth, the road of---left-hand rotation---right-hand rotation of just seeing craspedodrome clearly behind the grade separation list bridge near this invention has had little time lane change when dividing standard, blocks up and accident and cause.In a word, this grade separation list bridge require--turning left,--road of turning right is divided the road that standard is different from existing turn left--craspedodromes---turn right and is divided standard, and this grade separation list bridge can not be used on the road of the road division standard of existing--craspedodrome---right-hand rotation of turning left to the outer craspedodrome of ring in encircle.
Summary of the invention
Four craspedodrome Dan Qiao and four single bridges that turn left that the purpose of this utility model provides the crossroad meet existing right line system traffic rules, fully eight unimpeded single bridge combining structures.
Design of the present utility model is: four the ground by-paths in crossroad enter the single bridge of left-hand bend of crossroad and single bridge of keeping straight on, earlier around arc parallel behind the by-path of ground, opposite bifurcated again, and single bridge that always turns left is around the inboard of arc, and single bridge of keeping straight on is in the outside around arc.When turning left single bridge and the single bridge of craspedodrome after arc arrives the ground by-path bifurcated on opposite, single bridge of keeping straight on goes out the crossroad and then can not intersect with the single bridge of parallel left-hand bend and conflict, and single bridge that turns left then continues just to leave the crossroad around arc to the by-path position, ground that left-hand bend will reach.
Enter the single bridge of left-hand bend of crossroad and the counter clockwise parallel rotation of single bridge of keeping straight on from a ground by-path.A rear ground by-path counter clockwise enters the single bridge of left-hand bend of crossroad and single bridge of keeping straight on, and comes the single bridge of left-hand bend of previous ground by-path and the inboard of single bridge of keeping straight on and detours.Be the single bridge of craspedodrome that a back ground by-path enters the crossroad, entering the left-hand bend of crossroad with previous ground by-path, single bridge is adjacent detours.Make thereafter a ground by-path enter the single bridge of craspedodrome of crossroad, enter the single bridge of left-hand bend of crossroad, when same ground by-path leaves the crossroad, do not intersect the problem of road occupying with previous ground by-path.
Eight single bridge combining structures of this suitable vehicle right lateral system also can be used for train running in reverse direction and use.But its shortcoming is on the by-path of ground, and vehicle will be arranged by the track arrangement mode that from left to right is right lateral track----direct lane, and this track arrangement mode does not meet existing left lateral system traffic rules.So, eight single bridge combining structures of this vehicle right lateral system are used for the right-hand rotation of left lateral system vehicle and when keeping straight on, can only say and can realize right-hand rotation and craspedodrome, but inconsistent with existing left lateral system traffic rules, use and be difficult to that the structure bridge of this right lateral system also is used for the traffic of left lateral system.
Structure of the present utility model is:
The complete smooth combination structure that eight the single bridges in right line system crossroad form, comprise four Dan Qiao and four single bridges that are used for left-hand bend that are used for craspedodrome, it is characterized in that: single bridge of be used for keeping straight on is curved bend single bridge 1 of keeping straight on, and curved bend single bridge 1 interlude of keeping straight on is the right curved convex arc segment 4 of edge direction evagination to the right; The big curved bend of Dan Qiaowei of be used for single bridge 2 that turns left, big curved bend single bridge 2 interludes that turn left are the protruding big arc curved segment 5 of left-hand rotation to the opposite again after earlier protruding to the right;
Curved bend is kept straight on single bridge 1 in the turn left curved bend outside of single bridge 2 of a big curved bend, forms one and makes up single bridge; Four curved bends single bridge 1 and four big curved bends single bridge 2 that turns left of keeping straight on forms respectively four single bridges of combination;
Order counter clockwise, the single bridge of the combination of front position are in the arc outside of the single bridge of combination of rear position, i.e. the single bridge of the combination of rear position is in the arc inboard of the single bridge of combination of front position.
Single bridge of be used for keeping straight on need not rectilinear straight bridge construction, and will be with the curved bend structure reason that strides across next ground by-path that detours: although the speed of a motor vehicle on curved bend is kept straight on single bridge 1 is than slow on the single bridge of straight shape, single bridge 1 rear elimination of detouring intersected the conflict of road occupying but curved bend is kept straight on, shouldn't the second layer or the layer stereo means of transportation just can realize unimpeded.Big curved bend single bridge 2 that turns left also is to turn left without short line, and to detour stride across two ground by-paths of this by-path back, ground after, just link to each other with the 3rd ground by-path of back, realize, big curved bend is turned left, and vehicle that single bridge 2 eliminated on two ground by-paths with this by-path back, ground intersects conflicting of road occupying.Curved bend single bridge 1 and the big curved bend purpose that single bridge 2 all will detour and jump of turning left of keeping straight on, it is the curved bend of ground, back by-path the turn left arc outside of single bridge 2 of single bridge 1 and big curved bend of keeping straight on of to detour, and the curved bend that makes ground, back by-path single bridge 1 and big curved bend the playing the bridge section or playing the bridge end of single bridge 2 of turning left of keeping straight on, can (namely try one's best away from the by-path position, ground at center, crossroad) as soon as possible, just below the right curved convex arc segment 4 of ground, front Zhi Xianglian and the big arc curved segment 5 of turning left, pass, with the curved bend that increases ground, back by-path the turn left arc length that plays the bridge section of climbing of single bridge 2 of single bridge 1 and big curved bend of keeping straight on, the reduction gradient.And concentrate the curved bend solved this ground by-path single bridge 1 and the big curved bend single bridge 2 that turns left of keeping straight on, with the curved bend of and rear second ground by-path after the counter-clockwise direction the turn left a plurality of road occupying collision problems that intersect of single bridge 2 of single bridge 1 and big curved bend of keeping straight on.
Four curved bends single bridge 1 and four big curved bends single bridge 2 that turns left of keeping straight on forms respectively four single bridges of combination; Each makes up single bridge and is made up of in the turn left curved bend outside of single bridge 2 of a big curved bend a curved bend single bridge 1 of keeping straight on.
The crossroad that enters that single bridge 1 of the curved craspedodrome of each arc and big arc bend single bridge 2 all is a counter-clockwise direction to the arc direction of rotation of leaving the crossroad.
Order counter clockwise, as long as the single bridge of the combination of front position always is in the arc outside of the single bridge of combination of position, back, promptly the single bridge of the combination of position, back is in the arc inboard of the single bridge of combination of front position, in the time of just making the single bridge of combination of front position leave the crossroad earlier, there is not the road occupying of intersection to conflict, promptly no longer needs overpass bridge with the single bridge of any combination in back.Order counter clockwise, its each single bridge that leaves the crossroad be always: the curved bend of the front position big curved bend of the single bridge 1---front position big curved bend of the position single bridge 2 that turns left of keeping straight on behind single bridge 1---of the curved bend of position behind single bridge 2---that turns left of keeping straight on.
In four ground by-paths at the parting of the ways, the bridge that links to each other with ground, front position by-path always, ground, position by-path after jumping (or bridge section of ground, position, the back by-path phase crossover that jumps), just rising of back position ground by-path or phase crossover worn the continuous bridge of ground, front position by-path under the bridge section.
The utility model does not intersect the principle of road occupying and is: the single bridge of the combination of rear position detours in the inboard, the chance of leaving the crossroad from the outside is left for the single bridge of combination of front position, when linking to each other with the ground by-path after making the single bridge of combination of front position finish to detour, leave from the outside and do not intersect with the combination list bridge of rear position.And the curved bend of the single bridge of same combination is kept straight on single bridge 1 in the outside, that single bridge 1 always finishes to detour prior to the big curved bend single bridge 2 that turns left because curved bend is kept straight on, when curved bend is kept straight on single bridge 1 FEFO when detouring, directly leave from the outside and do not make up big curved bend single bridge single bridge 2 that turns left with this and intersect.In a word: always allow single bridge that FEFO detours in the outside, when the single bridge that finishes to detour is connected with the ground by-path, does not have to intersect with other any single bridge and conflict.
In order to save the path resource of crossroad, the right curved convex arc segment 4 of a single bridge of combination and the big arc curved segment 5 of turning left are preferably parallel, and preferably equidistant parallel, even the contact of not having spacing distance is parallel, curved bend is kept straight on single bridge 1 with after the ground by-path that will arrive of keeping straight on is connected, big curved bend single bridge 2 that turns left continues to detour to behind the ground by-path that turns left will arrive, and is connected with this ground by-path.
The arc of preferred four sections 8 that walk abreast on the same group is all identical, and namely four can be linked to be annular for parallel section 8 on the same group.But, then be linked to be closed ring for four parallel on the same group section 8 and also can not become annular, but be fit to the closed-loop of crossroad shape because of ground, crossroad does not become annular.
With regard to the different sections position of the section 8 that walks abreast on the same group, the arc radius that the different sections of the section 8 that walks abreast on the same group are corresponding is mutually different.The section arc-shaped bend degree that just has is big, and the section flexibility that has is little.Certainly in condition license situation, preferably the curved bend curvature of parallel section 8 is identical everywhere on the same group.
The on the same group parallel section 8 of the single bridge of same combination connects into even surface.In the single bridge of same combination, keep straight on and the parallel on the same group section 8 of two the single bridges that turn left is merged into a bridge floor, can simplify the construction of bridge construction like this, reduce the expense of bridge construction, also can make the structure of single bridge more firm.
The on the same group parallel section 8 that can also be various combination list bridge connects into even surface, and the big curved bend that becomes the single bridge of previous combination the keep straight on right curved convex arc segment 4 of single bridge 1 of the big arc curved segment 5 of left-hand rotation and a rear curved bend of single bridge 2 of turning left connects into the section of even surface.So more can simplify the construction of bridge construction, more can reduce the expense of bridge construction, make the structure of single bridge more firm.
When the parallel on the same group section 8 of the single bridge of same combination connects into even surface, the parallel on the same group section 8 of the various combination list bridge of co-located also connects into even surface, and after the curved section 4 of right convex of the curved section 5 of the big arc of left-hand rotation of the curved single bridge 2 that turns left of the big arc of the single bridge of previous combination and the curved single bridge 1 of keeping straight on of a back arc connected into even surface, become any single bridge that is in the identical position of detouring, all connect into even surface by former inside and outside arrangement position, be combined into a bridge floor, then the section of detouring at diverse location of eight single bridges merges becomes a totally enclosed annular bridge, only the different sections of this annular bridge have the single bridge of detouring of varying number, and make the different sections of this annular bridge that different width be arranged.This is the single bridge design of simplifying most of complete unimpeded combining structure, the expense of saving bridge construction most, and the structure of single bridge is also the most firm, is optimum structure of the present utility model.
Single bridge described in the utility model refers to the independently bridge that guiding (carrying) vehicle travels to certain unique direction (keeping straight on or left-hand bend), single bridge is the limit for width degree not, and namely the bridge floor of a single bridge can be widened parallel many vehicles that equidirectional (keeping straight on or left-hand bend) travels.
Single bridge described in the utility model also can be single tunnel.Be that described curved bend single bridge 1 of keeping straight on can be curved bend single tunnel of keeping straight on, described big curved bend single bridge 2 that turns left can be big curved bend single tunnel that turns left.And the relative position structure in eight tunnels and the relative position structural relation of eight single bridges are identical.Convenient and simple and direct in order to narrate, in each file of present patent application, only narrate with single bridge, so the technical solution of the utility model also comprises the technical scheme that replaces eight single bridges with eight single tunnels fully.
Curved bend described in the utility model single bridge 1 and the big curved bend not limit for width degree of single bridge 2 that turns left of keeping straight on namely can only have a track on a single bridge, and several equidirectional parallel tracks also can be arranged.
Described in the utility model left and right, be to be positioned at the single bridge arc convex of combination some ground, crossroad by-path in addition towards the center, crossroad with the people, that judges is left and right.
Inboard described in the utility model, the outside are to be as the criterion with the center, crossroad, refer to the interior or outer relative position of its each single bridge segmental arc.
Advantage of the present utility model: at the parting of the ways, with the curved craspedodrome Dan Qiao of four arcs and four single bridges of the curved left-hand rotation of big arc, carry out counter-clockwise direction by inside and outside positional structure described in the utility model and detour, four craspedodrome roads and four left-turning pathways that just can be implemented in four the ground by-paths in crossroad have no road occupying unimpeded fully.Two-layer, three layers of viaduct than existing crossroad have greatly reduced the bridge construction cost, have reduced overpass height, and eight single bridges all can only realize that with the bridge floor of a layer height having no road occupying of craspedodrome and left-hand bend is fully unimpeded.
In the structure of the present utility model, the turn left track of single bridge of any one curved bend craspedodrome Dan Qiao that makes up single bridge and big curved bend is arranged identical with the track arrangement from left to right that has the right line system traffic rules now, being left-turning pathways for the left side all namely----the right is the craspedodrome road, and namely the track arrangement that meets existing right line system traffic rules is arranged in track of the present utility model.So the utility model is used for the obstacle that the traffic of right lateral system does not have traffic rules.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the schematic diagram that eight the single bridges in crossroad are combined into petal complete unimpeded combining structure;
Fig. 3 is a perspective view of the present utility model;
Fig. 4 be eight the single bridges in crossroad be in the identical position of detouring all connect into even surface, synthesize the full unblocked combining structure schematic perspective view of a full-closed ring bridge;
1 is the curved bend single bridge, the 2nd of keeping straight among the figure, the big curved bend single bridge, the 4th that turns left, right curved convex arc segment, the 5th, turn left big arc curved segment, the 8th, the on the same group section of walking abreast.
The specific embodiment
Four the craspedodrome Dan Qiao of embodiment 1, crossroad and the complete unimpeded combining structure of four single bridges that turn left
As Fig. 1,3, there are curved single bridge 1 and four the single bridges 2 of the curved left-hand rotation of big arc of keeping straight on of four arcs the crossroad, there are four ground by-paths the crossroad, the direct lane that enters the crossroad of each ground by-path is communicated with the curved single bridge 1 of keeping straight on of an arc, and left turn lane is communicated with the single bridge 2 of the curved left-hand rotation of a big arc.
The structure of two kinds of single bridges: the keep straight on two ends of single bridge 1 of curved bend are connected with the craspedodrome ground by-path at opposite face two ends, crossroad respectively, the keep straight on cambered outwards right curved convex arc segment 4 in by-path side, right side of oriented by-path in the middle of single bridge 1 of curved bend; The turn left two ends of single bridge 2 of big curved bend are connected with two ground by-paths that turn left in the crossroad respectively, big curved bend turn left single bridge 2 interludes for elder generation protruding to the right after the protruding big arc curved segment 5 of left-hand rotation to the opposite again.
Curved bend single bridge 1 of keeping straight on forms a single bridge of combination in the turn left curved bend outside of single bridge 2 of a big curved bend; Four curved bends single bridge 1 and four big curved bends single bridge 2 that turns left of keeping straight on forms respectively four single bridges of combination;
Order counter clockwise, the single bridge of the combination of front position are in the arc outside of the single bridge of combination of rear position, i.e. the single bridge of the combination of rear position is in the arc inboard of the single bridge of combination of front position.
The part of right curved convex arc segment 4 and the big arc curved segment 5 parallel on the same group parallel sections 8 that become of turning left.Four parallel on the same group section 8 arc is all identical, and the arc radius of one parallel on the same group section 8 different section arc correspondences is identical.
Counter clockwise rotation, the syndetons of four single bridges of combination are: the on the same group parallel section 8 of the single bridge of the combination of front position is in the outside, and the on the same group parallel section of the single bridge of the combination of rear position 8 is combined into the right line system smooth combination structure in the inboard.
The on the same group parallel section of embodiment 2, crossroad four groups of keep straight on single bridge and the single bridges of left-hand bend connects into the full unblocked combining structure of even surface
Ground by-path enters the curved single bridge 1 of keeping straight on of an arc of crossroad and inboardly forms one and make up single bridge in that arc is curved at the curved single bridge 2 that turns left of the curved outside of arc and big arc, four single bridges of combination of four groups of keep straight on single bridge and single bridge compositions that turn left, the parallel on the same group section 8 of each composite bridge connects into even surface, and four parallel on the same group section 8 arc is all identical.Other structure is same as embodiment 1.
What embodiment 3, eight the single bridges in crossroad were in the identical position of detouring all connects into even surface, synthesizes the full unblocked combining structure of a full-closed ring bridge
As Fig. 4, the parallel on the same group section 8 of a single bridge of combination connects into even surface, the parallel on the same group section 8 of the various combination list bridge of co-located also connects into even surface, and the curved section 4 of right convex of the curved section 5 of the big arc of left-hand rotation of the curved single bridge 2 that turns left of the big arc of the single bridge of previous combination and the curved single bridge 1 of keeping straight on of a back arc connected into even surface, become any single bridge that is in the identical position of detouring, all connect into even surface by former inside and outside arrangement position, be combined into a bridge floor, then the section of detouring at diverse location of eight single bridges merges becomes a totally enclosed annular bridge, only the different sections of this annular bridge have the single bridge of detouring of varying number, and make the different sections of this annular bridge that different width be arranged.This is the single bridge design of simplifying most of complete unimpeded combining structure, the expense of saving bridge construction most, and the structure of single bridge is also the most firm, is optimum structure of the present utility model.
Other structure is same as embodiment 1.
Claims (6)
1. the complete smooth combination structure that forms of the single bridges in eight of right line system crossroads, comprise four Dan Qiao and four single bridges that are used for left-hand bend that are used for craspedodrome, it is characterized in that: single bridge of be used for keeping straight on is the curved bend single bridge (1) of keeping straight on, and curved bend single bridge (1) interlude of keeping straight on is the right curved convex arc segment (4) of edge direction evagination to the right; The big curved bend of Dan Qiaowei of be used for the single bridge (2) that turns left, big curved bend single bridge (2) interlude that turns left is the protruding big arc curved segment of left-hand rotation (5) to the opposite again after earlier protruding to the right;
Curved bend is kept straight on single bridge (1) in the turn left curved bend outside of single bridge (2) of a big curved bend, forms one and makes up single bridge; Four curved bends single bridge (1) and four big curved bends single bridge (2) that turns left of keeping straight on forms respectively four single bridges of combination;
Order counter clockwise, the single bridge of the combination of front position are in the arc outside of the single bridge of combination of rear position, i.e. the single bridge of the combination of rear position is in the arc inboard of the single bridge of combination of front position.
2. the complete smooth combination structure that forms of eight the single bridges in right line system according to claim 1 crossroad, it is characterized in that: the part of right curved convex arc segment (4) or right curved convex arc segment (4) and the big arc curved segment (5) of turning left are parallel, and this parallel section is the section (8) that walks abreast on the same group.
3. the complete unimpeded combining structure that eight the single bridges in right lateral system according to claim 2 crossroad are formed is characterized in that: the arc of four sections (8) that walk abreast on the same group is all identical.
4. the complete unimpeded combining structure that eight the single bridges in right lateral system according to claim 3 crossroad are formed is characterized in that: the arc radius of the different section arc correspondences of the section (8) that walks abreast on the same group is identical.
5. the complete unimpeded combining structure that eight the single bridges in right lateral system according to claim 4 crossroad are formed is characterized in that: the parallel section (8) on the same group of the single bridge of same combination connects into even surface.
6. the complete smooth combination structure that forms according to eight the single bridges in claim 1 or 2 or 3 or 4 or 5 described right line system crossroads is characterized in that: the turn left big arc curved segment of left-hand rotation (5) of single bridge (2) of the big curved bend of the single bridge of previous combination has with the keep straight on right curved convex arc segment (4) of single bridge (1) of a rear curved bend and connects into the linkage section of even surface.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012149881A1 (en) * | 2011-05-04 | 2012-11-08 | Liu Yueping | Bird's nest-type, intersectional overpass for uninterrupted and omnidirectional traffic flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012149881A1 (en) * | 2011-05-04 | 2012-11-08 | Liu Yueping | Bird's nest-type, intersectional overpass for uninterrupted and omnidirectional traffic flow |
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