CN202073001U

CN202073001U - Left-hand traffic long-and-short combination bridge comprising four independent 'Y'-shaped branched bridges

Info

Publication number: CN202073001U
Application number: CN2011201463784U
Authority: CN
Inventors: 邹世才; 廖礼毅; 高健; 邹凌云; 罗凡洲; 陆洋; 廖大中
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-10
Filing date: 2011-04-28
Publication date: 2011-12-14
Anticipated expiration: 2021-04-28
Also published as: CN102277812A; CN102277807B; CN102234965B; CN202265753U; CN202265750U; CN202265749U; CN102234962B; CN102234970A; CN102234966A; CN102234966B; CN102277809B; CN102234962A; CN102234965A; CN202090253U; CN102277814A; CN202265754U; CN202265752U; CN102234969A; CN102234964A; CN102277807A

Abstract

The utility model relates to a left-hand traffic long-and-short combination bridge comprising four independent 'Y'-shaped branched bridges, which is a combination structure composed of four independent branched arch bridges to guarantee smoothness of a plurality of bridges at a crossing. Each branched arch bridge is provided with a through arch bridge and a right turn bridge, the right turn bridge is arranged on the right of the through arch bridge, each right turn bridge is branched off from the through arch bridge on the right turn side to form one branched bridge, the four branched arch bridges become four 'Y'-shaped branched bridges branched in the same direction, two 'Y'-shaped branched bridges branched in the same direction form a group bridge, and two groups of through bridge one-way sections of the two group bridges form a stereo cross structure. The left-hand traffic long-and-short combination bridge has the advantages that damage degree of the whole combination bridge caused by local geological change is relieved, the right turn bridges can serve as right turn and left turn share bridge, wider ground is supplied to serve as a combined lane section so that traffic jam is not easy to occur, direct right turn is achieved without excessive rounding, and full interflow of a small crossing with two-way six lanes is achieved.

Description

Left lateral system length shape is the composite bridge of totally four independences " Y " font bifurcated bridge

Technical field

The utility model belongs to the overpass bridge that makes the right-angled intersection automobile traffic unimpeded, particularly four independently the Y-shaped arch bridge be combined into the craspedodrome motor vehicle that can make the crossroad (hereinafter to be referred as: straightgoing vehicle) and the right-hand bend motor vehicle (hereinafter to be referred as the have no road occupying unimpeded combining structure of a plurality of bridges of the conflict right-hand bend car).

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 motor vehicles on the two road can only a shared road on node, has lost the path resource of half.Add pedestrian, bicycle and motor vehicle and mix row, 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 be widened infinitely.People have expected overpass bridge again, but in existing upright civilian bridge design scheme, can make crossroad direct lane and left turn lane have no road occupying the conflict the overpass bridge minimum diameter more than 120 meters, not only build the cost height, and the crossroad of the two-way six-lane in old urban area all can not be built, make the crossroad traffic congestion of present old urban area very serious, the frequent traffic paralysis in the crossroad that has.

Chinese patent 200720043390.6 " the full unblocked overpass bridge of individual layer " discloses a kind of unimpeded combining structure associating bridge of directly striding a bridge and an annular bridge of establishing at the parting of the ways.Its shortcoming: the driver must see clearly operation sign at the parting of the ways, in case can not lane change after not seeing clearly or seeing clearly, can cause promptly advancing the traffic congestion of place, crossroad in the lane change crosspoint.This overpass bridge can not be used on the road of existing standard.

Chinese patent 200820230509.5 is " directly left, the right-hand rotation interchange overpass " a kind of overpass bridge disclosed, because the claims and the manual of this patent are very unclear to the description of technical scheme, but as if just structure and the defective that can understand this screen frame shape overpass bridge with Figure of description is: one, unwanted height and length have been increased: in by-path position, ground away from the crossroad, continuing one section pontic after the craspedodrome bridge passes below the left-hand bend bridge on opposite more just is connected with ground, make the overhead highly very high of upper layer bridge, increased the total length of bridge, make whole pontic not only high not only long but also big like this, waste bridge construction expense has been blocked civic landscape.Two, local damage causes whole the damage: after the left-hand bend bridge passes below the craspedodrome bridge of ground, left side by-path and left-hand bend bridge, with be connected with ground again after the lower bridge section of the craspedodrome bridge of ground, right side by-path flushes, also make the overhead highly very high of upper layer bridge, increased the total length of bridge, also make whole pontics be connected to a large-scale integral bridge, once the part of this large-scale integral bridge has geology to change, its part is damaged and just will causes whole large-scale integral bridges to damage.Three, whole bridge becomes screen frame shape area occupied too big: the global shape of overpass bridge is for there being two cornerwise screen frame shape pontics, requiring the crossroad not have the circular minimum diameter in vacant lot of building is 115 meters, and in the two-way six-lane crossroad of old urban area, diameter reaches 115 meters almost not having, and just the overpass bridge that provides of this Figure of description almost can not be used for two-way six-lane crossroad, old urban area.

Summary of the invention

The purpose of this utility model provides the road track that meets existing left lateral system traffic specification and arranges, small size crossroad at two-way six-lane can be built, four " Y " font bifurcated bridges are combined into the conflict that has no road occupying of direct lane and right-turn lane, and there is long merging track section in a plurality of tracks of leaving the crossroad and is difficult for many bridges combined type freely-moving bridge of traffic congestion.

The utility model solve to intersect the design of road occupying conflict point and is: a plurality of conflict points of right-angled intersection plane traffic are divided into three kinds of conflict points: first kind is that the right-turn lane on direct lane and opposite has the road occupying conflict; Second kind be four direct lanes be divided into two groups at the parting of the ways the central area have and intersect the road occupying conflict; The third is that the right-turn lane has the road occupying of intersection to conflict with direct lane and the right-turn lane that this right-hand rotation bend arrives the ground by-path.

Solve first kind, there is the technical scheme of road occupying conflict the right-turn lane on direct lane and opposite: craspedodrome bridge and right-hand bend bridge on each ground by-path of right-angled intersection are one group, and every group last bridge end all is connected with same ground by-path.Two craspedodrome bridges of keeping straight on are separate relatively, make a craspedodrome bridge after striding across right-angled intersection, pass under the right-hand bend bridge of " Y " font Y-shaped arch bridge on opposite through ground, solved direct lane and opposite the right-turn lane intersect collision problem.This technical scheme has solved four road occupying conflict points.

Solve second kind, article four, direct lane be divided into two groups at the parting of the ways the central area have and intersect the technical scheme of road occupying conflict: the direct lane that travels that intersects becomes multilevel traffic in the centre at the parting of the ways, has solved four direct lanes traffic conflict problem of central area at the parting of the ways.This technical scheme has solved four road occupying conflict points.

Solve the third, to be the right-turn lane with the direct lane of arrival ground by-path and right-turn lane have intersects the technical scheme of road occupying conflict: the track, ground of leaving the crossroad that is communicated with the following bridge end of right-hand bend bridge, pass below the Y-shaped arch bridge [craspedodrome bridge and right-hand bend bridge] of the ground by-path that arrives from this right-hand bend bridge, solved the collision problem that intersects of the direct lane of right-turn lane and the ground by-path of arrival and right-turn lane.This technical scheme has solved eight road occupying conflict points.

Like this, the crossroad of plane traffic, four craspedodrome bridges and four 16 total road occupying conflict points of right-hand bend bridge have been realized multilevel traffic fully, no longer include the road occupying conflict point.

The design of the new function of the utility model: take ground and space for reduce the utility model composite bridge as far as possible, traffic route fully can be identical the right-hand bend bridge and the left-hand bend bridge of this ground, right-hand bend bridge right side by-path, the right side of travelling with an energy rightabout, a left side merge bridge, and right side, the width that turns left to merge bridge can reduce the width on 5.0 meters right left sides than side by side two the independent right-hand bend bridges and the overall width of left-hand bend bridge.So, the utility model without the disclosed right side of the Figure of description of Chinese patent 200820230509.5, to turn left be the mode of two independent bridges, but the right-hand bend bridge is designed to the right side, turns left to merge bridge and reach and reduce the purpose that composite bridge takies ground and space.

For having geology in the pontic position, the large-scale overpass bridge of avoiding Chinese patent 200820230509.5 accompanying drawings to provide changes, to the destruction of a part of pontic and the destruction that causes whole pontic, also avoid large-scale overpass bridge can not be used for the problem of the small-sized crossroad of two-way six-lane, old urban area, this large-scale overpass bridge that can not be connected is divided into four small-sized bifurcated in the same way " Y " fonts fork bridges, each in the same way bifurcated " Y " font fork bridge ground by-path being respectively the crossroad right-turn lane and direct lane are provided.Just under the condition that can realize crossroad right-hand bend car and the unimpeded traffic of straightgoing vehicle, a large-scale overpass bridge is divided into four small-sized overpass bridges, can reduce geology greatly and change destructiveness, and make the destruction of indivedual small-sized overpass bridges not influence the structure and the use of other small-sized overpass bridge pontic.

The driving route that the utility model not only will solve the crossroad does not have the intersection collision problem, and also being provided at has sufficiently long merging track section on the ground level road that leaves the crossroad, solves the merging track and only has only a point and produce the problem of traffic congestion on bridge.The through vehicles of crossroad and right-hand bend vehicle not only will accomplish not have the road occupying conflict point, will accomplish that also the through vehicles, right-hand bend vehicle, left-hand bend vehicle from the Different Ground by-path has the merging track of a plurality of merging track points section leaving on the by-path of ground, crossroad.The utility model is located at ground merging the track section, though merge the track section is the rule that ground level road is divided, the structure content that does not belong to the utility model overpass bridge, but the structure of the utility model overpass bridge can make the ground by-path can obtain to merge the track section.And the disclosed screen frame shape of the Figure of description of Chinese patent 200820230509.5 overpass bridge can be regarded as at a plurality of pontics that leave cross friendship center in a some merging track, make through vehicles, right-hand bend vehicle and left-hand bend vehicle on bridge, have only one to merge the track point, this three tracks merge track point, the very easy consequence that blocks up that causes with one together on bridge on overpass bridge.And the utility model carries out the track merging with the merging track section that can be provided at the ground certain-length, can solve from the vehicle on the different pontics and puts the traffic congestion problem that too narrow size produces because of merging the track.So, through vehicles and right-hand bend vehicle that the utility model not only can solve each bar ground by-path of crossroad have no road occupying unimpeded, can also solve when on a ground by-path, leaving the crossroad from the vehicle on the Different Ground by-path pontic, very well-to-do ground is arranged as merging the track section, the disclosed screen frame shape of the Figure of description overpass bridge of comparing Chinese patent 200820230509.5 has only a position to merge the track, and then the utility model can reduce at double because of putting the traffic congestion problem that too narrow size produces in the merging track.

The design of the utility model new construction:

One, the right-hand bend bridge does not pass right side bifurcated " Y " font fork bridge in the same way: with four bifurcated " Y " font fork bridges in the same way independently, divide prong composition facing each other two grouping bridges, two groups of straight bridge single file sections of two grouping bridges become three-dimensional decussation structure, but each in the same way the right-hand bend bridge of bifurcated " Y " font fork bridge do not pass, do not stride across bifurcated in the same way " Y " the font fork bridge on the right, but the right-hand bend bridge is communicated with ground below the high position section of pitching bridge near bifurcated in the same way " Y " font on the right, vehicle on the right-hand bend bridge can be descended to ground, pass bifurcated in the same way " Y " the font fork bridge on the right from ground, this right-hand bend bridge is communicated with the left turn lane of ground, right side by-path, vehicle on this left turn lane can be realized with the outside bridge floor of this bridge of turning right, and is this right-hand bend bridging right, the left-hand rotation combined bridge.

Two, the craspedodrome arch bridge does not pass the opposite right-hand bend bridge of bifurcated " Y " font fork bridge in the same way: with four bifurcated " Y " font fork bridges in the same way independently, divide prong composition facing each other two grouping bridges, four craspedodrome arch bridges of two grouping bridges respectively with the opposite in the same way the right-hand bend bridge of bifurcated " Y " font fork bridge carry out multilevel traffic in by-path position, ground away from the crossroad.The shape of right curved bridge single file section is the arcuate structure that becomes three-dimensional decussate texture central area indent to two groups of straight bridge single file sections of two grouping bridges, with the grade separation position of other bridge also at ground by-path away from the center, crossroad, prolonged right-hand bend bridge length, thereby reduced the right-hand bend bridge and will take very large-area problem at the parting of the ways because of the bridge length that the gradient needs, the crossroad is only needed more than 65 meters the distance between the building of angular direction, just can satisfy the needs of right-hand bend bridge, also just can satisfy the needs that the utility model combination freely-moving bridge takies ground and space.This just requires two of opposite face, and two craspedodrome arch bridges of bifurcated " Y " font fork bridge rightabout driving are separate in the same way, need not same bridge, and vertical dislocation is arranged, promptly the ground upper bridge section of the straight bridge earth terminal of the lower bridge section of a craspedodrome arch bridge and that craspedodrome arch bridge of opposite rises jointly and between the bridge earth terminal spacing distance is arranged and not in same position, the straight bridge earth terminal of the lower bridge section of craspedodrome arch bridge is more near the center, crossroad, be straight bridge earth terminal as long as near the zone, high position, stage casing of opposite craspedodrome arch bridge or ground plane before this, just abdicate the superjacent air space on right side for opposite craspedodrome arch bridge, allow the right-hand bend bridge on opposite directly go out right curved bridge single file section, the multilevel traffic in addition the ground by-path at the parting of the ways of the right-hand bend bridge of realizing craspedodrome arch bridge and opposite at the side bifurcated of turning right.But straight bridge single file section is not passed the right curved bridge single file section in opposite, makes the structure that does not have straight bridge single file section below the curved bridge single file section in the right side of this position and be one deck pontic.Center at the parting of the ways, two groups of straight bridge single file sections of two grouping bridges become multilevel traffic.On ground by-path away from the center, crossroad, ground of each right curved bridge single file section prolongs the track and all becomes multilevel traffic with bifurcated in the same way " Y " the font fork bridge of the ground by-path that arrived of turning right, but right curved bridge single file section is not passed and bifurcated in the same way " Y " the font fork bridge of the ground by-path that arrived of turning right.

Structure of the present utility model is:

Left lateral system length shape is the composite bridge of totally four independences " Y " font bifurcated bridge, comprise four Y-shaped arch bridges, it is characterized in that: each Y-shaped arch bridge all has a craspedodrome arch bridge 2 and a right-hand bend bridge 3, right-hand bend bridge 3 is positioned at the right side of craspedodrome arch bridge 2, right-hand bend bridge 3 is all at a side and craspedodrome arch bridge 2 bifurcateds of turning right, this bifurcation is a bifurcation 15, make a craspedodrome arch bridge 2 and a right-hand bend bridge 3 form " Y " font bifurcated bridge, then four Y-shaped arch bridges become four bifurcated " Y " font fork bridges 1 in the same way;

Each in the same way the craspedodrome arch bridge 2 of bifurcated " Y " font fork bridge 1 and right-hand bend bridge 3 have and play bridge earth terminal 4 jointly, and play bridge earth terminal 4 jointly to the section 14 side by side of two bridges between the bifurcation 15; At the fork of bifurcated " Y " font in the same way zone, high position, bridge 1 stage casing, right-hand bend bridge 3 and craspedodrome arch bridge 2 bifurcateds; The zone, high position that right-hand bend bridge 3 leaves craspedodrome arch bridge 2 is bifurcated section 7; Craspedodrome arch bridge 2 also has a straight bridge earth terminal 5, and right-hand bend bridge 3 also also has a right-hand rotation bridge earth terminal 6; From bifurcation 15 to straight bridge earth terminal 5 is straight bridge single file section 8; From bifurcation 15 to right-hand rotation bridge earth terminal 6 is right curved bridge single file section 13;

Divide prong relative two in the same way bifurcated " Y " font fork bridge 1 form a grouping bridge, four in the same way bifurcated " Y " font fork bridge 1 form two grouping bridges respectively; 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections of two grouping bridges; Two grouping bridges are divided into two embedded grouping bridges and two kinds of single embedded grouping bridges; In two embedded grouping bridges, two straight bridge single file sections 8 have the part section to lay respectively at the opposite in the same way among the branch prong of bifurcated " Y " font fork bridge 1, and then two straight bridge single file sections 8 of two embedded grouping bridges all are microscler straight bridge single file section 8-1; In single embedded grouping bridge, straight bridge single file section 8 is divided into microscler straight bridge single file section 8-1 and the straight bridge single file of brachmorphy section 8-2, microscler straight bridge single file section 8-1 has the part section to be positioned at the opposite in the same way among the branch prong of bifurcated " Y " font fork bridge 1, and the straight bridge single file of brachmorphy section 8-2 is positioned at the place in the same way between the straight bridge single file section 8 of bifurcated " Y " font fork bridge 1 and another grouping bridge; Pitch between the bridge 1 on bifurcated in the same way " Y " the font fork bridge 1 that right curved bridge single file section 13 is positioned at the place and right side bifurcated " Y " font in the same way.

The design feature of the utility model right-hand bend bridge 3 makes right-hand bend bridge 3 become the right side, shared bridge turns left, reduce the floor space of composite bridge central area: between bifurcated " Y " the font fork bridge 1, the curved bridge single file section 13 in the right side of the bridge 3 of promptly turning right is not passed, is not striden across bifurcated in the same way " Y " font on this right-hand bend bridge 3 right sides and pitches bridge 1 in the same way for bifurcated in the same way " Y " the font fork bridge 1 that right curved bridge single file section 13 is positioned at the place and right side.Right-hand rotation bridge earth terminal 6 is communicated with the left turn lane of the ground by-path on right side, and the left turning vehicle of ground, right side by-path can directly use as the left-hand bend bridge with the outside of this right-hand bend bridge 3, realizes.The right-hand rotation car of just adjacent ground by-path and left-hand rotation car can shared right-hand bend bridge 3 reach the purpose of turning separately, and the car of just turning right is at the inboard bridge floor of right-hand bend bridge 3 by 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections, and the left-hand rotation car is at bridge floor in the outer part.The shared right-hand bend bridge 3 of right-hand rotation car and left-hand rotation car is realized turning right and turning left, than realizing that with right-hand rotation bridge and two bridges of left-hand rotation bridge right-hand rotation and left-hand rotation still less take the ground and the space of crossroad, become the more composite bridge of miniaturization, help to use this composite bridge, also reduce the bridge construction expense in littler crossroad.

The design feature of the utility model craspedodrome arch bridge 2 increases the length that merges the track and prevents traffic congestion: with independent discrete four two grouping bridges of bifurcated " Y " font fork 1 fen prong composition facing each other of bridge in the same way, two grouping bridges are divided into two kinds of two embedded grouping bridges and single embedded grouping bridges; Straight bridge single file section 8 form of structure of single embedded grouping bridge: microscler straight bridge single file section 8-1 lower bridge section has the part section to be positioned at the opposite in the same way among the branch prong of bifurcated " Y " font fork bridge 1, and the straight bridge single file of brachmorphy section 8-2 is positioned at the place in the same way between the straight bridge single file section 8 of bifurcated " Y " font fork bridge 1 and another grouping bridge; But the opposite curved bridge single file section 13 in the right side of bifurcated " Y " font fork bridge 1 is not in the same way passed or do not striden across to the straight bridge single file section 8 of two embedded grouping bridges and single embedded grouping bridge.Like this from the straight bridge earth terminal 5 of straight bridge single file section 8 from the through vehicles of bridge on ground, with from the right side in the same way 6 times bridges of right-hand rotation bridge earth terminal of bifurcated " Y " font fork bridge 1 right-hand bend bridge 3 to the right-hand bend vehicle merging track on ground, promptly the through vehicles and the right-hand bend vehicle of bifurcated " Y " font fork bridge 1 merge the track on ground in the same way from two, then can merge the track at long section in track, ground, rather than only be confined to a merging track point, can solve the traffic congestion problem that causes because of the too narrow very little size in site that merges the track like this.

Bifurcated " Y " font fork bridge 1 is meant that right-hand bend bridge 3 and craspedodrome arch bridge 2 have one section side by side in the same way, but right-hand bend bridge 3 has bifurcation 15 on the right side, zone, high position, stage casing of craspedodrome arch bridge 2.At near the right-hand bend bridge 3 the bifurcation 15 and craspedodrome arch bridge 2 sections the clear height more than 4.5 meters of closing the symbol traffic specification is arranged preferably, make and to pass through motor vehicles below it.Right-hand bend bridge 3 is turned right as motor vehicles and is used." in the same way " be meant that the right-hand bend bridge 3 of each " Y " font fork bridge is all identical with the bifurcated direction of craspedodrome arch bridge 2, promptly each right-hand bend bridge 3 is all at the right side of craspedodrome arch bridge 2 bifurcated, the directly right-hand rotation with other any pontic grade separation.So one in the same way the global shape of bifurcated " Y " font fork bridge 1 be: to play a bridge earth terminal 4 be side by side to bifurcation 15 common for right-hand bend bridge 3 and craspedodrome arch bridge 2, this side by side section be two bridges side by side sections 14.Craspedodrome arch bridge 2 behind the bifurcated is straight bridge single file section 8, and the right-hand bend bridge 3 behind the bifurcated is right curved bridge single file section 13.

The craspedodrome arch bridge 2 of same bifurcated in the same way " Y " font fork bridge 1 and a common bridge earth terminal 4 of right-hand bend bridge 3 can be zonules, and 3 the bridge points of 2 bridge points of arch bridge and right-hand bend bridge of then keeping straight on are in same area; In this same area, 3 bridge points of 2 bridge points of craspedodrome arch bridge and right-hand bend bridge can be same positions, or certain longitudinal separation is arranged.

Craspedodrome arch bridge 2 is the current bridges of two ground by-paths that are used for the crossroad opposite face, and " craspedodrome " is meant that motor vehicles arrive the meaning of opposite, crossroad road, and " craspedodrome " is not meant the shape of bridge, and is meant the purposes of bridge.

Right-hand bend bridge 3 is the right-hand bend bridges that are used for crossroad left lateral traffic system, and " right-hand bend " is that purposes is the meaning of turning right.

The bifurcated section 7 of right-hand bend bridge 3 is the bridge sections that are used for passing from ground from the motor vehicles of the craspedodrome arch bridge 2 on opposite current usefulness, there are motor vehicles to pass the height of needs below the height of bifurcated section 7 need satisfy, are preferably in zone, the high position bifurcated that satisfies traffic specification with craspedodrome arch bridge 2 so the right-hand bend bridge 3 of bridge 1 pitched in same bifurcated in the same way " Y " font.

Right-hand rotation bridge earth terminal 6 preferably is positioned near the ground the bifurcation 15 of bifurcated in the same way " Y " font fork bridge 1 of the ground by-path that right-hand bend will arrive, bifurcated in the same way " Y " the font fork bridge 1 of the ground by-path that right-hand bend will arrive is not passed, do not striden across to right curved bridge single file section 13, so that the right-hand bend motor vehicles pass bifurcated in the same way " Y " the font fork bridge 1 of the ground by-path that is arrived from ground.The right-hand bend motor vehicles in ground and left side in the same way 2 times through vehicles of bifurcated " Y " font fork bridge 1 craspedodrome arch bridge to ground merge tracks, long ground, merging track section can be arranged, rather than have only one to merge the track point.Avoided the disclosed screen frame shape of Chinese patent 200820230509.5 Figure of description overpass bridge, make the through vehicles on right-hand bend vehicle and ground, the left side by-path merge the track in the pontic position of two bridges, because the traffic congestion problem that the too narrow size of bridge floor of merging track point produces.

The stage casing of bifurcated " Y " font fork bridge 1 is provided with the zone, high position in the same way, so that from the left side in the same way the right-hand bend vehicle of bifurcated " Y " font fork bridge 1 below it, pass behind ground from right-hand rotation bridge earth terminal 6, bifurcated " Y " font fork bridge 1 can multilevel traffic with the right-hand bend vehicle from the left side in the same way thereby realize this.

Grouping bridge is by minute prong relative two combining structure of bifurcated " Y " font fork bridge 1 in the same way, and the straightgoing vehicle that travels as the rightabout of two ground by-paths of crossroad opposite face is realized keeping straight on and the right-hand bend car is realized the composite bridge of turning right.A crossroad needs two grouping bridges, 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections of two grouping bridges.

Two groups of straight bridge single file sections 8 that " cross " meaning of 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections of two grouping bridges does not limit two grouping bridges are an angle of 90 degrees intersection mutually, here " cross " is identical with " cross " implication of crossroad, promptly there is intersection in two roads of " cross " general reference, do not limit intersecting angle.So, if straight bridge single file section 8 has bending also still two groups of straight bridge single file sections 8 of two grouping bridges to be considered as decussate texture.The shape of stereo cross shape structure is meant overlooks observation above decussate texture, 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections of two grouping bridges, but two groups of straight bridge single file sections 8 up and down of two grouping bridges are not connected, and space length is up and down arranged, and it are current to satisfy motor vehicles.

The optimum position of straight bridge earth terminal 5: optimum position be the straight bridge earth terminal 5 of microscler straight bridge single file section 8-1 near the opposite bifurcated section 7 below ground locations of bifurcated " Y " font fork bridge 1 in the same way, the straight bridge earth terminal 5 of the straight bridge single file of brachmorphy section 8-2 ground location below near the straight bridge single file section 8 of another grouping bridge.As long as make its through vehicles pass bifurcated section 7 from ground, then the height of bifurcated section 7 can reduce as far as possible, promptly the height of one deck bridge.

The preferred structure of right-hand bend bridge 3: the curved bridge single file section 13 in the right side of right-hand bend bridge 3 is preferably to the arcuate structure of 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections central area of two grouping bridges indent.Satisfy the gradient for the length that prolongs right curved bridge single file section 13 and meet the traffic specification requirement, and take ground, crossroad or locus as far as possible less, and the arcuate structure that the turn fractions of bridge single file section 13 is arranged to concave is bent on the right side.This preferred structure makes the utility model can be used for having only more than 65 meters between place, diagonal angle, the crossroad building, and the small-sized crossroad of the above width in eight tracks is arranged between the building of two-way six-lane both sides, can both build combination freely-moving bridge of the present utility model.This just makes the utility model can be used for the crossroad, arterial highway in old city, realizes that old arterial street crossroad straightgoing vehicle and right-hand rotation car that people wish have no road occupying unimpeded.

The curved bridge single file section 13 min. turning radius design in the right side of arc concaves: the central point with 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections of two grouping bridges is the center, same grouping bridge is L to the right curved bridge single file section 13 relative beeline length of two arcs of stereo cross shape structure centre indent, the min. turning radius of two right curved bridge single file sections 13 of arc is R, in the scope of 30.0 meters≤L≤80.0 meter, the relationship of L and R is: R=L ÷ 4+8.When L=60.0 rice, R=23.0 rice.L is long more, illustrates that the crossroad area is big more, and then turning radius R can be big more, and the right curved bridge single file section 13 of arc can be born the fast more travel speed of motor vehicle.

At the parting of the ways, because there is not intersection road occupying collision problem between the motor vehicles in the left-hand bend of left lateral system, not the subject matter that the present invention will solve so turn left.Turning left from ground can be without overpass bridge, but will have the road occupying of intersection to conflict with bicycle and pedestrian.For avoiding this intersection road occupying conflict, can be that the right side is widened with the outside of right-hand bend bridge 3, the left turning vehicle that is used for ground, right side by-path uses, and the bridge 3 of just turning right becomes the right-hand bend car of this ground by-path and the common combined bridge that uses of left turning vehicle of ground, right side by-path.The structure of right-hand bend bridge 3 is without any variation, just become the right side, left-hand rotation combined bridge, it is unimpeded fully to make the utility model become four craspedodrome roads of crossroad, four right-hand rotation bends, four left-turning pathways, the full intercommunication composite bridge of neither one intersection road occupying conflict point has promptly been realized the unimpeded intercommunicated overpass in whole tracks, crossroad.But the disclosed screen frame shape of Chinese patent 200820230509.5 Figure of description overpass bridge will reach the unimpeded multilevel traffic in whole tracks, crossroad, is provided with the left-hand bend service bridge, and promptly turn left bridge and right-hand bend bridge are two graded crossing bridges side by side.According to the overpass bridge design specifications, the minimum widith of the right side of the present utility model, left-hand rotation combined bridge can be 10.0 meters, but the left-hand bend bridge of the disclosed screen frame shape of Chinese patent 200820230509.5 Figure of description overpass bridge and right-hand bend bridge minimum widith side by side are 16.0 meters.Consequently, right, the left-hand rotation of one-sided realization, the utility model has reduced by 5.0 meters occupation of land width; And the whole composite bridge minimum of the utility model takies the circle in ground and space directly through 65.0 meters, and the circle that takies ground and space than the disclosed screen frame shape of Chinese patent 200820230509.5 Figure of description overpass bridge minimum has directly reduced by 10.0 meters width through 75.0 meters.This stand out of 10.0 meters, make composite bridge of the present utility model can be used for the almost crossroad of any two-way six-lane, and have the crossroad of a lot of two-way six-lanes all can not use the disclosed screen frame shape of Chinese patent 200820230509.5 Figure of description overpass bridge.That is to say, make composite bridge of the present utility model usability widely be arranged than the disclosed screen frame shape of Chinese patent 200820230509.5 Figure of description overpass bridge, composite bridge of the present utility model can be solved outside any problem of the disclosed screen frame shape of Chinese patent 200820230509.5 Figure of description overpass bridge, can also solve the multilevel traffic problem of the indeterminable littler crossroad of Chinese patent 200820230509.5 Figure of description disclosed screen frame shape overpass bridge.

" right side " " left side " in the right described in the utility model or the left side, the right side or the left side, left side, right side is meant that the people stands in common bridge earth terminal 4 positions of rising of some bifurcateds in the same way " Y " font fork bridge 1, in the face of the stereo cross shape structure centre that two groups of straight bridge single file sections 8 of two grouping bridges are formed goes to judge " right side " or " left side ".

Two bridges described in the utility model section 14 side by side comprise two tracks at least.

Track described in the utility model or bridge are can pass through at least road or the bridge of a motor vehicle, but described track or bridge do not limit width, can increase width many cars side by side.

Craspedodrome arch bridge 2 described in the utility model is meant that the travel direction of motor vehicles on bridge is to keep straight on to stride across the bridge of crossroad for purpose, but the ascents and descents that the level height meaning is arranged, so the shape of craspedodrome arch bridge 2 can be rectilinear form or curved shape, when actual bridge construction, the shape of craspedodrome arch bridge 2 is shaped as according to determining with ground level road.

Right-hand bend bridge 3 described in the utility model is meant the bridge that the motor vehicles that are used to turn right use.The right-hand rotation bridge of left lateral system is at the right side, high position of craspedodrome arch bridge 2 bifurcated, and the direction that right-hand bend bridge 3 is directly bent to right is turned, and does not need to do unnecessary detouring from ground, left side by-path and ground, opposite by-path.

Right-hand bend bridge 3 described in the utility model can only use as turning right, and the left-hand bend bridge that also can be used as ground, this right-hand bend bridge 3 right side by-path uses, and the bridge 3 of promptly turning right can be right, left-hand bend combined bridge.

Left lateral system described in the utility model refers to motor vehicles left-hand traffic management system.

Intersection road occupying conflict described in the utility model refers to the traffic conflict between the motor vehicles at the parting of the ways.

Zone, high position described in the utility model is meant the pontic section of the following motor vehicles height that can pass through.

It is that " car " or " vehicle " of bicycle is meant motor vehicle or refers to motor vehicles that the utility model does not indicate.

Advantage of the present utility model:

One, large-scale overpass bridge is divided into four small-sized " Y " font overpass bridges, reduce the disaster degree that geology changes: the disclosed screen frame shape of the Figure of description of Chinese patent 200820230509.5 overpass bridge is a large-scale overpass bridge of integral body that is connected as a single entity, the total length of a large-scale overpass bridge of integral body is very long, floor space is very big, when in total length and floor space, there being geology to change, will produce this overpass bridge and destroy, cause whole large-scale overpass bridge not use, this crossroad access is paralysed fully.And the utility model above-mentioned whole large-scale overpass bridge is split as bifurcated in the same way " Y " the font fork bridge that four independences are not connected is small-sized overpass bridge, finish the right-hand rotation of four the ground by-paths in crossroad and the unimpeded function of keeping straight on respectively with these four small-sized overpass bridges, in identical driving speed per hour, identical technology such as pontic gradient ginseng is wanted under the condition, compare the large-scale screen frame overpass bridge of Chinese patent 200820230509.5 Figure of description, each small-sized overpass bridge of the present utility model shortens 30-35% than the total length of present large-scale overpass bridge, and four small-sized overpass bridges take up an area of the gross area and reduce 30-50%; Seldom take ground by-path ground in addition, and the underground and aboveground space on this ground; Just the utility model has reduced local damage greatly and has been directed at the whole degree of damaging; Because the utility model is four small-sized overpass bridges independently, even if having geology to change damages and can not use certain small-sized overpass bridge, also can not be directed at other bridge that is not connected is damaged, reduced geology so greatly and changed the economic loss that causes damage, the traffic of crossroad can not paralysed fully; In a word, the utility model than existing large-scale overpass bridge, greatly reduces the risk of geological disaster with small-sized overpass bridge.

Two, the right-hand bend bridge can be used as and turns right and the shared bridge that turns left: the right-hand rotation bridge earth terminal of right-hand bend bridge is connected with the left turn lane of ground, right side by-path, and the right-hand bend bridge just can be used as the shared bridge of the left turning vehicle of ground, right side by-path.The minimum bridge deck width of the right-hand bend and the shared bridge that turns left will reduce by 5.0 meters right left sides than the overall width with right-hand rotation bridge and two independent bridges of left-hand rotation bridge.The right-hand rotation bridge of the disclosed screen frame shape of the Figure of description of Chinese patent 200820230509.5 overpass bridge and left-hand rotation bridge are two independent bridges.So the circle that the whole composite bridge minimum of the utility model takes up room is directly through 65.0 meters, the circle that takies ground than the disclosed screen frame shape of Chinese patent 200820230509.5 Figure of description overpass bridge minimum has directly reduced by 10.0 meters width through 75.0 meters.Composite bridge then of the present utility model can be used for littler crossroad, and is spendable wider.

Three, the vehicle that leaves the crossroad has the ground of broad as merging the track section: the through vehicles of bridge is kept straight on ground and is passed below bifurcated in the same way " Y " the font fork bridge right-hand bend bridge on opposite under the straight bridge earth terminal of straight bridge single file section, with from the right side in the same way under the right-hand bend bridge of bifurcated " Y " font fork bridge bridge to the right-hand bend vehicle merging track on ground, then can merge the track at long ground section, the disclosed screen frame shape of the Figure of description overpass bridge of having avoided Chinese patent 200820230509.5 merges the too little too narrow size of lane position and the traffic congestion problem that causes on pontic.

Four, be same as the former circuit of plane traffic substantially and do not have unnecessary detouring: it is unimpeded that two-way six-lane crossroad craspedodrome motorway and the motor-driven road of right-hand bend car are had no road occupying, and solved the traffic congestion that produces because of the two road usual friendship at the parting of the ways, problem blocks the traffic.This is a kind of unnecessary circuit that detours that do not have, motor vehicles only have ascents and descents to be different from the plane traffic at the parting of the ways, and driving route is same as the driving route on the existing surface road that traffic lights are arranged substantially, do not change direction of traffic and the custom of people in the usual friendship crossroad, do not get lost because of unnecessary detouring in can current process at the parting of the ways, the engineering quantity of building bridge in addition is less than existing any intercommunicated overpass, saves the bridge construction engineering cost.

Five, the little crossroad of two-way six-lane can be used: the utility model is only used four combinations of " Y " font Y-shaped arch bridge in the same way, it is unimpeded fully just to have realized that the crossroad has no road occupying and conflicts, reduced the length of bridge in a large number than the existing intercommunicated overpass that detours, floor space and space have been reduced in a large number, make it have only 65 meters two-way six-lane small size crossroad, city can realize that also grade separation is unimpeded at round diameter, promptly do not intersect the road occupying conflict point, also the section of interweaving not provides new design scheme for solving the global arterial street automobile traffic problem of blocking up.

Six, one deck bridge is only used in the multilevel traffic of through vehicles and right-hand rotation vehicle: no matter be the right-hand bend bridge of wearing the opposite under the through vehicles, wear the craspedodrome bridge and the right-hand bend bridge on right side under the vehicle of still turning right, all only use one deck overpass bridge.Littler to the civic landscape influence.

Inventive point of the present utility model is:

One, establish same number, basic identical structure, discrete small-sized independent overpass bridge by the bar number of ground, crossroad by-path: the disclosed screen frame shape of the Figure of description overpass bridge of Chinese patent 200820230509.5 " direct left and right commentaries on classics interchange overpass " is a large-scale overpass bridge of integral body that is connected as a single entity, and the whole three-dimensional bridge of the various runways in crossroad is connected as one.And the utility model is thought, from the overpass bridge of Different Ground by-path after through the crossroad, overpass bridge unnecessary and from other ground by-path is connected, more can realize merging the track with vehicle from the overpass bridge of other ground by-path, sail out of this crossroad, also more difficult traffic congestion, so the utility model not interconnecting, make from the overpass bridge of Different Ground by-path four ground by-paths of crossroad use respectively four in the same way the small-sized overpass bridge of bifurcated " Y " font, discretely be combined into a composite bridge.And the composite bridge of this four small-sized overpass bridges is preventing that geology from having changed, having widened the disclosed screen frame shape of the Figure of description overpass bridge that the aspects such as length that merge the track are better than Chinese patent 200820230509.5.That is to say: from single comparison, the utility model is split as four small-sized " Y " font overpass bridges to screen frame formula overpass bridge; From integral body relatively, the composite bridge of four small-sized " Y " font overpass bridges becomes the little cross of floor space, rather than the wide screen frame shape of floor space.

Two, the pontic of craspedodrome bridge and right-hand bend bridge does not pass through mutually: this craspedodrome bridge does not pass, does not stride across the right-hand bend bridge on opposite, the right-hand bend bridge realization craspedodrome that just makes the vehicle on the craspedodrome bridge pass the opposite from ground; And the right-hand bend bridge does not pass, does not stride across right side the craspedodrome bridge and the right-hand bend bridge of bifurcated " Y " font fork bridge in the same way, makes the vehicle on the right-hand bend bridge pass right side the craspedodrome bridge and the right-hand bend bridge of bifurcated " Y " font fork bridge in the same way from ground.This structure makes through vehicles and the right-hand rotation vehicle on different bifurcated in the same way " Y " the font fork bridges can realize merging the track on ground, as long as merge the merging track section that just can there be longer distance in the track on ground, be difficult for blocking up because of merging the too little too narrow size in track, the disclosed screen frame shape of the Figure of description overpass bridge that has overcome Chinese patent 200820230509.5 merges the track and has only to merge the site, track and an easy problem that produces traffic congestion on overpass bridge.

Three, traffic conflict point is moved on to away from the by-path position of crossroad go multilevel traffic: the utility model is not the position that the road occupying conflict takes place to intersect at the plane traffic behavior, the i.e. position in the scope at the parting of the ways not, solution is from the direct lane and the right-turn lane of Different Ground by-path, and the conflict of the intersection road occupying between the right-turn lane, but creationary this two classes traffic conflict point is moved on to away from multilevel traffic transport solution conflict on four ground by-paths of crossroad, thereby can take the ground and the space of crossroad minimumly.This unimpeded structure requires to reduce greatly to the annular region floor area of crossroad.As long as between the building of ground by-path eight lane widths are arranged, just can build up combination freely-moving bridge of the present utility model with the ground of crossroad diameter more than 65 meters, the crossroad access of realizing old city six-lane is unimpeded, stops up the meaning that initiative is arranged for solving the little crossroad access in old urban area.

Four, on the by-path of the ground on two opposites, the ground of craspedodrome bridge prolongs the right-hand bend bridge of wearing the opposite under the track: keeping straight on relatively is two two-way craspedodrome arch bridges that rightabout is kept straight on, separate, not shared bridge; Be straight bridge earth terminal than the opposite in the same way bifurcated " Y " font fork bridge common play the bridge earth terminal and more intersect the center near the stereo cross of two groups of craspedodrome arch bridges of two grouping bridges; Straight bridge earth terminal is near the opposite zone, high position or the ground connection before this of bifurcated " Y " font fork bridge in the same way, so straight bridge earth terminal has been reserved the opposite high position section rightward space of bifurcated " Y " font fork bridge in the same way, allow the curved bridge single file section in the right side on opposite can be directly at the craspedodrome arch bridge bifurcated on right-hand bend one side and opposite, two bridge bifurcateds can directly be turned right the right-hand bend vehicle and are not needed unnecessary detouring, the vehicle that leaves straight bridge earth terminal can be passed from the turn right ground, bifurcated section below of bridge of opposite face, realize the multilevel traffic of through vehicles and opposite right-hand bend vehicle.

Five, the right-hand bend bridge is designed to the right side, left-hand bend combined bridge: the right-hand bend bridge is not passed do not stride across right side bifurcated " Y " font fork bridge in the same way, and right-hand rotation bridge earth terminal is communicated with the left turn lane of ground, right side by-path, and the right-hand bend bridge just becomes the right side, left-hand bend combined bridge.And do not need two bridges respectively as right, the use of turning left.

Six, the ground of right-hand bend bridge prolongs craspedodrome bridge and the right-hand bend bridge of wearing ground, right side by-path under the track: right curved bridge single file section directly arrives near the ground connection in zone, high position of bifurcated in the same way " Y " the font fork bridge on right side by the right-hand bend direction, its ground prolongs bifurcated in the same way " Y " the font fork bridge multilevel traffic in track and this zone, high position, and what just solved the straightgoing vehicle of the ground by-path that right-hand bend vehicle and right-hand bend will arrive and right-hand bend car intersects the road occupying collision problem.The right-hand bend vehicle does not detour, and has reduced unnecessary traffic conflict point.

Description of drawings

Fig. 1 is bifurcated in the same way " Y " the font fork bridge plane structure schematic diagram of microscler straight bridge single file section;

Fig. 2 is bifurcated in the same way " Y " the font fork bridge plane structure schematic diagram of the straight bridge single file of brachmorphy section;

Fig. 3 is a plane structure schematic diagram of the present utility model.

In the Figure of description,

Meaning is a uphill lane, Meaning is parallel track,

Meaning is a descending lane.Among the figure: the 1st, bridge, the 2nd pitched in bifurcated " Y " font in the same way, craspedodrome arch bridge, the 3rd, right-hand bend bridge, the 4th plays bridge earth terminal, the 5th jointly, straight bridge earth terminal, the 6th, right-hand rotation bridge earth terminal, the 7th, bifurcated section, the 8th, straight bridge single file section, 8-1 are that microscler straight bridge single file section, 8-2 are the straight bridge single file of brachmorphy sections, the 13rd, right curved bridge single file section, 14 is two bridges sections, the 15th side by side, bifurcation.

The specific embodiment

The crossroad of embodiment 1, left lateral traffic system is by two the left lateral system that grouping bridge is formed length shapes composite bridge of totally four independences " Y " font bifurcated bridge.

As Fig. 1,2,3,

One, cross agent structure: there are four ground by-paths the crossroad, the ground by-path across structure of the ground by-path of two opposite faces and two other opposite face, and by-path top, four ground has bifurcated " Y " font fork bridge 1 in the same way respectively.Divide prong relative two in the same way bifurcated " Y " font fork bridge 1 form a grouping bridge, four in the same way bifurcated " Y " font fork bridge 1 form two grouping bridges respectively, two grouping bridges are divided into two kinds of two embedded grouping bridges and single embedded grouping bridges.Four in the same way four common bridge earth terminals 4 that rise of bifurcated " Y " font fork bridge 1 be communicated with the direct lane and the right-turn lane of four ground by-paths respectively away from the crossroad.

Two, structure of bifurcated " Y " font fork bridge 1 in the same way: each in the same way the craspedodrome arch bridge 2 of bifurcated " Y " font fork bridge 1 and right-hand bend bridge 3 have and play bridge earth terminal 4 jointly, and play bridge earth terminal 4 jointly to the section 14 side by side of two bridges between the bifurcation 15; In the fork of bifurcated " Y " font in the same way zone, high position, bridge 1 stage casing, right-hand bend bridge 3 is at a side and craspedodrome arch bridge 2 bifurcateds of turning right; The bifurcated section that right-hand bend bridge 3 leaves craspedodrome arch bridge 2 is a bifurcated section 7; Craspedodrome arch bridge 2 also has a straight bridge earth terminal 5, and right-hand bend bridge 3 also also has a right-hand rotation bridge earth terminal 6; From bifurcation 15 to straight bridge earth terminal 5 is straight bridge single file section 8; From bifurcated section 7 to right-hand rotation bridge earth terminal 6 is right curved bridge single file section 13.

Three, straight bridge single file section 8 structures of two embedded grouping bridges: the straight bridge single file of each of two embedded grouping bridges section 8 strides across the crossroad and extend into the opposite in the same way among the branch prong of bifurcated " Y " font fork bridge 1, and its earth terminal 5 is positioned near below the bifurcated section 7 on opposite.The orthography from the top down of two straight bridge single file sections 8 in two embedded grouping bridges becomes part shape side by side, and the people accounts on straight bridge single file section 8 a certain side ground and sees 8 one-tenth grade separation structures of these two straight bridge single file sections.

Four, straight bridge single file section 8 structures of single embedded grouping bridge: in single embedded grouping bridge, microscler straight bridge single file section 8-1 is positioned at the opposite in the same way among the branch prong of bifurcated " Y " font fork bridge 1, and its earth terminal 5 is positioned near the ground below the bifurcated section 7 on opposite; The straight bridge single file of brachmorphy section 8-2 is positioned at the place in the same way between the straight bridge single file section 8 of bifurcated " Y " font fork bridge 1 and another grouping bridge, points to the following ground of the straight bridge single file section 8 of another grouping bridge.

Five, the structure of the right-hand bend bridge 3 of two embedded grouping bridges: its grade separation structure is: bifurcated section 7 is highest region sections.Right-hand rotation bridge earth terminal 6 is positioned near the ground, section below, high position of bifurcated " Y " font fork bridge 1 in the same way, the right, the right-hand bend motor vehicles from right-hand rotation bridge earth terminal 6 to ground, wear bifurcated in the same way " Y " font of ground, the right by-path from underground and pitch bridge 1, the straightgoing vehicle on the ground by-path on realization right-hand bend motor vehicles and the right and the multilevel traffic of right-hand bend car.Its shape and structure is: in same bifurcated in the same way " Y " the font fork bridge 1, the bifurcated section 7 of right-hand bend bridge 3 is at the right bifurcated in zone, high position, craspedodrome arch bridge 2 stage casing.The left lateral system of being applicable to traffic rules motor vehicles enter right curved bridge single file section 13 realization right-hand bends from the shunting, the right of craspedodrome arch bridge 2.The ground of right-hand rotation bridge earth terminal 6 prolongs the track and passes below 4.5 meters eminences of high position section headroom of bifurcated in the same way " Y " the font fork bridge 1 on the right.

Six, unimpeded combining structure: 2 one-tenth three-dimensional decussate textures of two groups of craspedodrome arch bridges of two grouping bridges specifically are that the straight bridge single file of the two group leader's shapes section 8-1 of two groups of craspedodrome bridges 2 becomes the levels decussate texture, and it intersects between section two-layer up and down 4.5 meters of the headroom discrepancy in elevation.The craspedodrome arch bridge 2 of bifurcated " Y " font fork bridge 1 and the common bridge earth terminal 4 that rises of right-hand bend bridge 3 are being communicated with the left side by-pass of a ground by-path respectively away from the crossroad in the same way for each, each two bridge section 14 side by side lay respectively at above the left side by-pass of a ground by-path, microscler straight bridge single file section 8-1 is respectively from striding across on the ground descending behind the center, crossroad, extend into the opposite in the same way between the branch prong of bifurcated " Y " font fork bridge 1, the straight bridge single file of brachmorphy section 8-2 does not stride across the center, crossroad and is communicated with ground with regard to descending, the pontic of the straight bridge single file of brachmorphy section 8-2 not with straight bridge single file section 8 graded crossing of another grouping bridge, upper bridge section craspedodrome above this ground by-path scope of each right curved bridge single file section 13, to near bending to right again behind the crossroad, arrive ground along ground, the right by-path scope descending again after the right-hand bend.

Seven, use the crossroad of present embodiment, the traffic route that the microscler straight bridge single file section 8-1 of the embedded grouping bridge of the list of lower floor goes up straightgoing vehicle is: certain ground by-path----plays bridge earth terminal 4----two bridges side by side among the section 14[figure jointly

]----craspedodrome arch bridge 2 and the right zone, high position, stage casing that curves bridge 3 bifurcateds, the arch bridge 2 of promptly keeping straight on reaches 4.5 meters headways [among the figure

] among----microscler straight bridge single file section 8-1[figure

]----stride across the center, crossroad----straight bridge earth terminal 5----ground prolong the track pass below the bifurcated section 7 of bifurcated " Y " font fork bridge 1 right curved bridge single file section 13 in the same way from the opposite----arrive the opposite the ground by-path leave the track, crossroad, be implemented in the crossroad and keep straight on.

Eight, use the crossroad of present embodiment, the traffic route that the straight bridge single file of the embedded grouping bridge brachmorphy of the list of lower floor section 8-2 goes up straightgoing vehicle is: certain ground by-path----plays bridge earth terminal 4----two bridges side by side among the section 14[figure jointly ]----craspedodrome arch bridge 2 and the right zone, high position, stage casing that curves bridge 3 bifurcateds, the arch bridge 2 of promptly keeping straight on reaches 4.5 meters headways [among the figure

] among the straight bridge single file of----brachmorphy section 8-2[figure

]----straight bridge earth terminal 5----ground prolongs the track and passes below two craspedodrome arch bridges 2 of another minute bridge group, and----ground prolongs the track and passes the ground by-path that----arrives the opposite below the bifurcated section 7 of bifurcated " Y " font fork bridge 1 right curved bridge single file section 13 in the same way from the opposite, is implemented in the crossroad and keeps straight on.

Nine, use the crossroad of present embodiment, the traffic route of straightgoing vehicle is on the two embedded grouping bridge on upper strata: certain ground by-path----plays bridge earth terminal 4----two bridges side by side among section 14[figure jointly

] leading portion of----straight bridge single file section 8 is [among the figure

] continue climb altitude----and stride across among the microscler straight bridge single file section 8-1[figure of lower floor at the center at the parting of the ways

], and the back segment that 4.5 meters headways----straight bridge single file sections 8 arranged between lower floor's bridge is [among the figure

]----straight bridge earth terminal 5----ground prolong the track pass below the bifurcated section 7 of bifurcated " Y " font fork bridge 1 right curved bridge single file section 13 in the same way from the opposite----arrive the opposite the ground by-path leave the track, crossroad, be implemented in the crossroad and keep straight on.

Ten, use the crossroad of present embodiment, the traffic route of right-hand bend car is: certain ground by-path----plays bridge earth terminal 4----two bridges side by side among the section 14[figure jointly

]----craspedodrome arch bridge 2 and the right zone, high position, stage casing that curves bridge 3 bifurcateds [among the figure

], the arch bridge 2 of promptly keeping straight on reaches 4.5 meters headways----and turns right and enter among the bifurcated section 7[figure

], pass from below----right curved bridge single file section 13[figure from the prolongation track, ground of opposite straight bridge single file section 8 ]----ground of the right curved bridge single file section 13 of right-hand bend bridge earth terminal 6----prolong the track below bifurcated in the same way " Y " the font fork bridge 1 of ground, the right by-path, pass----arrive the right the ground by-path leave the track, crossroad, be implemented in the crossroad and turn right.

11, use the crossroad of present embodiment, the traffic route of left turning vehicle is: certain ground by-path, and----------------outside----two bridges in the zone, high position, stage casing of craspedodrome arch bridge 2 and the right curved bridge single file section 13 bifurcateds ground by-path on the section 14----arrival left side side by side leave the track, crossroad, are implemented in the crossroad left-hand bend in the outside of bifurcated section 7 in the right outside of bending bridge single file section 13 in right-hand bend bridge earth terminal 6 outsides.

The crossroad of embodiment 2, left lateral traffic system, the left lateral system length shape of the arc that right curved bridge single file section is an indent is the composite bridge of totally four independences " Y " font bifurcated bridge.

The entire infrastructure that comprises embodiment 1, and the straight bridge earth terminal 5 of two embedded grouping bridges is near opposite bifurcated section 7 lower positions of bifurcated " Y " font fork bridge 1 in the same way.Right curved bridge single file section 13 is the arcuate structures to 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections central area of two grouping bridges indent.Central point with 8 one-tenth three-dimensional decussate textures of two groups of straight bridge single file sections of two grouping bridges is the center, same grouping bridge is L to the right curved bridge single file section 13 relative beeline length of two arcs of stereo cross shape structure centre indent, the min. turning radius of the right curved bridge single file section 13 of these two arcs is R, in the scope of 30.0 meters≤L≤80.0 meter, the relationship of L and R is: R=L ÷ 4+8.Present embodiment R=20.5 rice, L=50.0 rice, add 18.0 meters of the curved bridge single file section 13 width sums in two right sides, then only take diameter above the overpass bridge of the present embodiment ground at the parting of the ways and be 68.0 meters circular space zone, just can make the craspedodrome of crossroad and right-hand bend vehicle realize having no road occupying unimpeded, ground no longer wants traffic lights to direct traffic.

Claims

1. the left lateral system length shape composite bridge of totally four independences " Y " font bifurcated bridge, comprise four Y-shaped arch bridges, it is characterized in that: each Y-shaped arch bridge all has a craspedodrome arch bridge (2) and a right-hand bend bridge (3), right-hand bend bridge (3) is positioned at the right side of craspedodrome arch bridge (2), right-hand bend bridge (3) is all at a side and craspedodrome arch bridge (2) bifurcated of turning right, this bifurcation is bifurcation (15), make a craspedodrome arch bridge (2) and a right-hand bend bridge (3) form " Y " font bifurcated bridge, then four Y-shaped arch bridges become four bifurcated " Y " font fork bridges (1) in the same way;

Each in the same way the craspedodrome arch bridge (2) of bifurcated " Y " font fork bridge (1) and right-hand bend bridge (3) have and play bridge earth terminal (4) jointly, and play bridge earth terminal (4) jointly to two bridges between the bifurcation (15) section (14) side by side; At the fork of bifurcated " Y " font in the same way zone, bridge (1) high position, stage casing, right-hand bend bridge (3) and craspedodrome arch bridge (2) bifurcated; The zone, high position that right-hand bend bridge (3) leaves craspedodrome arch bridge (2) is bifurcated section (7); Craspedodrome arch bridge (2) also has a straight bridge earth terminal (5), and right-hand bend bridge (3) also also has a right-hand rotation bridge earth terminal (6); From bifurcation (15) to straight bridge earth terminal (5) is straight bridge single file section (8); From bifurcation (15) to right-hand rotation bridge earth terminal (6) is right curved bridge single file section (13);

Divide prong relative two in the same way bifurcated " Y " font fork bridge (1) form a grouping bridge, four in the same way bifurcated " Y " font fork bridge (1) form two grouping bridges respectively; Two groups of straight bridge single file sections (8) of two grouping bridges become three-dimensional decussate texture; Two grouping bridges are divided into two embedded grouping bridges and two kinds of single embedded grouping bridges; In two embedded grouping bridges, two straight bridge single file sections (8) have the part section to lay respectively at the opposite in the same way among the branch prong of bifurcated " Y " font fork bridge (1), and then two straight bridge single file sections (8) of two embedded grouping bridges all are microscler straight bridge single file sections (8-1); In single embedded grouping bridge, straight bridge single file section (8) is divided into microscler straight bridge single file section (8-1) and the straight bridge single file of brachmorphy section (8-2), microscler straight bridge single file section (8-1) has the part section to be positioned at the opposite in the same way among the branch prong of bifurcated " Y " font fork bridge (1), and the straight bridge single file of brachmorphy section (8-2) is positioned at the place in the same way between the straight bridge single file section (8) of bifurcated " Y " font fork bridge (1) and another grouping bridge; Pitch between the bridge (1) on bifurcated in the same way " Y " the font fork bridge (1) that right curved bridge single file section (13) is positioned at the place and right side bifurcated " Y " font in the same way.

2. left lateral system length shape according to claim 1 is the composite bridge of totally four independences " Y " font bifurcated bridge, it is characterized in that: the straight bridge earth terminal (5) of microscler straight bridge single file section (8-1) is near opposite bifurcated section (7) lower position of bifurcated " Y " font fork bridge (1) in the same way, and the straight bridge earth terminal (5) of the straight bridge single file of brachmorphy section (8-2) is at straight bridge single file section (8) lower position near another grouping bridge.

3. left lateral system length shape according to claim 1 is the composite bridge of totally four independences " Y " font bifurcated bridge, it is characterized in that: right curved bridge single file section (13) is the arcuate structure that becomes three-dimensional decussate texture central area indent to two groups of straight bridge single file sections (8) of two grouping bridges.

4. left lateral system length shape according to claim 3 is the composite bridge of totally four independences " Y " font bifurcated bridge, it is characterized in that: becoming the central point of three-dimensional decussate texture with two groups of straight bridge single file sections (8) of two grouping bridges is the center, same grouping bridge is L to the relative beeline length of the right curved bridge single file section (13) of two arcs of stereo cross shape structure centre indent, the min. turning radius of two right curved bridge single file sections (13) of arc is R, in the scope of 30.0 meters≤L≤80.0 meter, the relationship of L and R is: R=L ÷ 4+8.