CN202577081U

CN202577081U - Direct left turn interchange overpass

Info

Publication number: CN202577081U
Application number: CN 201120438363
Authority: CN
Inventors: 郭关鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-08
Filing date: 2011-11-08
Publication date: 2012-12-05
Anticipated expiration: 2021-11-08

Abstract

The utility model discloses a direct left turn interchange overpass, which comprises main bridges which are mutually orthogonal or are mutually and obliquely crossed. The direct left turn interchange overpass is characterized in that two-way lanes of the main bridges are separately arranged in the high-low separated manner; the upper bridge ends of the main bridges are high-span bridges; the lower bridge ends of the main bridges are low-span bridges; a part of bridge floors of the lower bridge ends of the main bridges are respectively located below the bridge floors of the upper bridge ends of the main bridges; the upper bridge ends of the main bridges are respectively provided with a three-fork section; the upper bridge ends of the main bridges are respectively connected with ramp bridges through the three-fork sections; the other ends of the ramp bridges and cohesion three-fork sections respectively at the lower bridge ends of the other main bridge crossed with the main bridge on which the upper bridge ends are located are interlaced in the forward direction; and the ramp bridges are respectively arranged at the inner sides of the legs of the two main bridges mutually crossed. The direct left turn interchange bridge has the advantages that pass strokes of vehicles are short; the occupied area is small; and the environmental pollution is low.

Description

A kind of interchange viaduct of direct left-hand rotation

Technical field

The utility model relates to a kind of interchange viaduct of urban traffic infrastructure, particularly a kind of direct left-hand rotation.

Background technology

Mostly the overpass bridge of prior art is the clover blade profile, and it deposits following some disadvantage.

One, on old notion overpass bridge, each attempts the vehicle through the overpass bridge left-hand rotation, can not be after getting into the bridge district; Directly turn left, but will against one's will continue to move ahead, sail the main bridge of keeping straight on into; After passing the grade separation central point, also to carry out dextrorotation and go in ring, returning wanders again passes another high-rise grade separation central point of same projected position; Could roll overpass bridge bridge district away from via the main bridge of mutually orthogonal craspedodrome track.Be to have experienced complicated program like this, can realize the wish that vehicle turns left just now.And the main bridge bridge floor of the mutually orthogonal craspedodrome in the overpass bridge scope; Then mixed vehicle flowrate and eight places of the left turning vehicle incorporated four direction into forward intertwined point extraly into and out of craspedodrome bridge floor track, should checkless function thereby reduced overpass bridge zone direct lane.

Two, each left turning vehicle must be done all dextrorotation along a fore shaft ring shape ramp bridge and go in ring in a quadrant of overpass plane design, could get into via the main bridge of mutually orthogonal craspedodrome, rolls the bridge district away from and accomplishes.Because this clover detours, the vehicle that each approach clover blade profile overpass bridge of the whole world turns left all need increase by 200～300 meters of the paths of detouring.

Three, make all left turning vehicles all at first sail craspedodrome main line bridge track without exception into; And in all quadrants, spiral around; And stride twice, pass through at the main bridge central point of handing over of same projected position; In fact be exactly in a simple quadrature overpass bridge bridge district in perfectly good condition, applied the pollution element to environment such as the vibrations that produced during all left turning vehicles detour, dry sound, waste gas, dust.As representing degree of contamination, then formed in overpass bridge Qiao Qu space to the grade separation center and assembled the taper effect of stack with vertical coordinate.

Four, the old notion overpass bridge of clover blade profile; Because of in each quadrant in planar design; The big ring left rotaring ring road of a fore shaft shape bridge is all arranged; Force the right-hand rotation ramp bridge to collude a strand string and directly lay, the overpass bridge bridge district of moulding is taken up an area of be square around this ring outside, every completely the cloverleaf bridge generally take up an area of more than about hundred mu.

The utility model content

The purpose of the utility model is to provide a kind of interchange viaduct of direct left-hand rotation, and it not only makes the stroke that passes through of vehicle lack, and floor space is little, and environmental pollution is little.

The technical scheme that realizes the utility model purpose is: a kind of interchange viaduct of direct left-hand rotation; The main line bridge that comprises mutually orthogonal or oblique; It is characterized in that: the two-way lane of said main line bridge is high and low apart arrangement; The last bridge end of main line bridge is a high overbridge, and following bridge end is striden bridge for low, and a part of bridge floor of bridge end is positioned at the bridge floor below of bridge end on the main line bridge under the main line bridge; Has the trident section on the last bridge end of main line bridge; The last bridge end of main line bridge is connected with ramp bridge through this trident section, the other end of ramp bridge and forward interweave with this trident section that scoops out that goes up the following bridge end of the crossing main line bridge of bridge end place main line bridge, described ramp bridge edge two crossing main line bridges collude a burst disposed inboard.

And the plane of described trident section is three trouble shapes of left lateral, craspedodrome, right lateral; The last bridge end of main line bridge is connected with the ramp bridge that turns left, turns right and the following bridge end of this main line bridge respectively through this trident section, and the following bridge end of all main line bridges all is provided with and scoops out the trident section.

And in the crossing section of two main line bridges, the two-way lane of same main line bridge reverts to same elevation.

And the following bridge end of described left rotaring ring road bridge passes from the last bridge end below of another main line bridge of intersecting with it, and forward is interwoven in the following bridge end that parallels with last bridge end.

And described bridge end down is connected with the following bridge end of the left rotaring ring road bridge of another main line bridge through scooping out the trident section.

And the last bridge end of same main line bridge and the following bridge end pick-up point of leading the way be before and after layout.

The advantage of the utility model is: 1. ramp bridge is along burst disposed inboard of colluding of two crossing main line bridges, and floor space is little.2. vehicle gets into behind the overpass bridge and can directly turn left or turn right along ramp bridge, lacks through the stroke of overpass bridge.3. vehicle gets into behind the overpass bridge and can directly turn left or turn right along ramp bridge, need not repeatedly to pass from the central point of overpass bridge, and makes the left turn traffic mixing incorporate craspedodrome main line bridge into, has avoided the taper effect of tail gas and noise pollution mutual superposition.

Description of drawings

Fig. 1 is the plane structure sketch map that changes overpass bridge about directly;

Fig. 2 is the structural representation of Fig. 1 X-X place bridge floor longitudinal section;

Fig. 3 is the structural representation of Fig. 1 Y-Y place bridge floor longitudinal section.

The specific embodiment

To combine embodiment that the utility model is further specified referring to below Fig. 1～3.

The utility model relates to a kind of urban transportation facility; A kind of interchange viaduct of direct left-hand rotation particularly; Comprise the main line bridge 1,6 of mutually orthogonal or oblique, it is characterized in that: the two-way lane of said main line bridge 1,6 is high and low apart arrangement, and the last bridge end 4 of main line bridge 1,6 is a high overbridge; Following bridge end 5 is the low bridge of striding; A part of bridge floor of 1,6 times bridge ends 5 of main line bridge is positioned at the bridge floor below of bridge end 4 on the main line bridge 1,6, has trident section 3 on the last bridge end 4 of main line bridge 1,6, and the last bridge end 4 of main line bridge 1,6 is connected with ramp bridge 2 through this trident section 3; The other end of ramp bridge 2 and with this on the trident section 7 that scoops out of following bridge end 5 of the main line bridge 6 that intersects of bridge end 4 place main line bridges 1 forward interweave, described ramp bridge 2 along two intersect main line bridges 1,6 burst disposed inboard of colluding.

Vehicle such as need are turned, and the trident section 7 that scoops out of following bridge end 5 that can be directly can directly arrive at the main line bridge 6 of target direction along ramp bridge 2 through trident section 3 from last bridge end 4 forward interweaves and rolls main line bridge 6 away from; The vehicle that turns left does not need to pass through the rotating disk of traditional overpass bridge again; Or loop ramp is realized; But directly from last bridge end 4, the trident section 7 that scoops out of following bridge end 5 that arrives at the main line bridge 6 of target direction through left turn bridge 2 forward interweaves and rolls main line bridge 6 away from, has shortened the stroke that vehicle passes through greatly; Reduce the overpass bridge vehicle flowrate of main bridge of keeping straight on, and avoided the taper effect of tail gas and noise pollution mutual superposition.

Because the two-way lane of main line bridge 1,6 all is apart arrangement, and other part all is not in same elevation except that the centre, is independent of each other when dual-way vehicle goes, and is safe.

And the plane of described trident section 3 is three trouble shapes of left lateral, craspedodrome, right lateral; The last bridge end of main line bridge 1,6 is connected with the ramp bridge 2 that turns left, turns right and the following bridge end 5 of this main line bridge 1,6 respectively through this trident section 3, and the following bridge end 5 of all main line bridges 1,6 all is provided with and scoops out trident section 7.

The trident section 3 of the right width of cloth of import will be born and drive towards the orderly water conservancy diversion that the vehicle of different directions is taken their own roads to getting into the overpass bridge district; And in the identical trident section 3 of the outlet of another elevation left side width of cloth, then scoop out through ramp bridge 2 and sail, accomplished left and right commentaries on classics; Need roll three directions in overpass bridge district away from sends a car; Make it in order to import craspedodrome main line wagon flow, realizes that the intercommunication of no control signal lamp light moves through forward interweaving.

And in two main line bridges, 1,6 crossing sections, the two-way lane of same main line bridge 1,6 reverts to same elevation.

Intersect section at two main line bridges 1,6, the two-way lane of same main line bridge 1,6 is reverted to same elevation, make overpass bridge avoid occurring unnecessary multi-ply construction, also practiced thrift construction cost simultaneously crossing section of two main line bridges 1,6.

Further technical scheme can be that the following bridge end of described left rotaring ring road bridge 2 passes from last bridge end 4 belows of another main line bridge 6 of intersecting with it, and forward is interwoven in the following bridge end 5 that parallels with last bridge end 4.

And described bridge end 5 down is connected with the following bridge end of the left rotaring ring road bridge 2 of another main line bridge through scooping out trident section 7.

So just make full use of the elevation of last bridge end 4, significantly reduced difficulty of construction and construction cost.

And the last bridge end of same main line bridge 4 and following bridge end 5 pick-up point of leading the way be before and after layout.

Last bridge end 4 is arranged with the front and back of landing that following bridge end 5 is led the way, and makes it as far as possible approaching unidirectional fabric width, falls the position near the planning center in original street, and minimizing causes secondary to tie up to original street.

The utility model is on the same day, with regard to the same subject application patent of invention.

Claims

1. interchange viaduct that directly turns left; Comprise the main line bridge of mutually orthogonal or oblique, it is characterized in that: the two-way lane of said main line bridge is high and low apart arrangement, and the last bridge end of main line bridge is a high overbridge; Following bridge end is the low bridge of striding; A part of bridge floor of bridge end is positioned at the bridge floor below of bridge end on the main line bridge under the main line bridge, has the trident section on the last bridge end of main line bridge, and the last bridge end of main line bridge is connected with ramp bridge through this trident section; The other end of ramp bridge and with this on the trident section that scoops out of following bridge end of the main line bridge that intersects of bridge end place main line bridge forward interweave, described ramp bridge along two intersect the main line bridges burst disposed inboard of colluding.

2. the interchange viaduct of a kind of direct left-hand rotation according to claim 1; It is characterized in that: the plane of described trident section is three trouble shapes of left lateral, craspedodrome, right lateral; The last bridge end of main line bridge is connected with the ramp bridge that turns left, turns right and the following bridge end of this main line bridge respectively through this trident section, and the following bridge end of all main line bridges all is provided with and scoops out the trident section.

3. the interchange viaduct of a kind of direct left-hand rotation according to claim 1 is characterized in that: intersect section at two main line bridges, the two-way lane of same main line bridge reverts to same elevation.

4. the interchange viaduct of a kind of direct left-hand rotation according to claim 1; It is characterized in that: the following bridge end of described left rotaring ring road bridge passes from the last bridge end below of another main line bridge of intersecting with it, and forward is interwoven in the following bridge end that parallels with last bridge end.

5. the interchange viaduct of a kind of direct left-hand rotation according to claim 4 is characterized in that: described bridge end down is connected with the following bridge end of the left rotaring ring road bridge of another main line bridge through scooping out the trident section.

6. the interchange viaduct of a kind of direct left-hand rotation according to claim 1 is characterized in that: arrange before and after the pick-up point that the last bridge end of same main line bridge and following bridge end are led the way is.