CN102400425B

CN102400425B - Spiral type overpass

Info

Publication number: CN102400425B
Application number: CN201010276425.7A
Authority: CN
Inventors: 张铭钧
Original assignee: 张铭钧
Priority date: 2010-09-09
Filing date: 2010-09-09
Publication date: 2015-06-10
Anticipated expiration: 2030-09-09
Also published as: CN102400425A

Abstract

The invention relates to a scheme of a spiral type overpass which comprises straight ways, right turn ramps, left turn ramps, saddle-shaped ramps, columns and skew approach bridges. The spiral type overpass is characterized in that a first layer flat straight type bridge surface is supported by a plurality of columns on a main road ground at the traffic intersection of a cross-shaped city, the bridge surface of a second layer saddle-shaped ramp is supported by a plurality of columns on secondary road, the first layer bridge surface is 2.5-3m higher than the ground, the second layer bridge surface is 3-3.5m higher than the first layer bridge surface; the skew approach bridge is provided at each intersection, 6-7 traffic lanes are provided on each skew approach bridge, 4 ramps used for left lateral are provided between the inner ring of the second layer bridge surface and the first layer bridge surface. According to the invention, a plurality of traffic lanes which are not intersect are provided, thereby each vehicle can drive along the required direction, the left lateral vehicle can move as common traffic flow order on road without bypassing or changing the traffic lanes, so that the traffic flow speed at the traffic intersection can be increased, the time for waiting the traffic light can be saved and the problem of vehicle-pedestrian conflict is resolved.

Description

Spiral type overpass

Technical field

The present invention relates to a kind of overpass bridge, is a kind of spiral type overpass being applicable to the cross traffic intersection in city specifically.

The cross traffic intersection in city, because vehicle flowrate is large, the pedestrian that passes by one's way is many, for avoiding that traffic jam and major traffic accidents occur, the Large-sized Communication major trunk roads in some cities is equipped with overpass bridge.There are two comparatively outstanding contradictions in the existing overpass bridge in current each city, one is do not belong to complete intercommunication type, major trunk roads and subsidiary road wagon flow cannot be carried out left-hand rotation and be selected, two is have the overpass bridge turning left to select function to be take Mu lucerne leaf formula overpass bridge principle mostly, it turns left to select step is first keep to the right to cross laterally in the street and then take the mode of dextrorotation and horizontal road surface to carry out docking confluxing, thus, interflow and the phenomenon shunted is there is in certain distance, both have impact on traffic efficiency like this, also bring the hidden danger of security incident.

Summary of the invention

For overcoming the above-mentioned defect of present urban interchange, the invention provides a kind of spiral type overpass scheme, to allow pedestrian and non power driven vehicle in the FOH divided, floor traffic under bridge, motor vehicles then complete achiasmate fast passing by overpass bridge in respective traffic route, to greatest extent for pedestrian and vehicle are provided convenience, passed through efficiently, accomplish that safety and efficiency synchronously improves, and reach the order ground of human and vehicle shunting.

For solving its technical problem, the technical solution used in the present invention is: design the spiral type overpass including direct lane, right-hand rotation ring road, left rotaring ring road, shape of a saddle ramp, column and oblique bridge approach, its feature is: the flat type bridge floor being 1. supported with first floor on the ground major trunk roads of cross urban traffic intersection by many root posts, the ground subsidiary road of cross urban traffic intersection is supported with by many root posts the shape of a saddle ramp bridge floor of the second layer, first floor bridge floor 2.5-3 rice above ground level, second layer bridge floor exceeds first floor bridge floor 3-3.5 rice; Be equipped with oblique bridge approach at each crossing, each oblique bridge approach be respectively provided with 6-7 bar track, between the inner ring and first floor bridge floor of second layer bridge floor, be provided with 4 ring roads for left lateral; 2. described oblique bridge approach is the ramp of four end points, which is provided with upper right line, lower right line, directly up, two straight descending, lower left lines, straight, left mixed up totally 7 tracks, or be provided with upper right line, lower right line, directly up, directly descending, lower left line, straight, left mixed up totally 6 tracks; 3. be equipped with to recessed matrix sidewalk below the primary and secondary arterial highway, ground of cross urban traffic intersection, the ground under bridge floor is provided with the exclusive region had free passage for pedestrian and non motorized vehicle.。

Compared with prior art, the present invention has following beneficial effect: 1. because the present invention is provided with Uncrossed 6-7 bar track, make the direction running that various vehicle can need by oneself, the particularly vehicle of left lateral, without the need to detouring or changing Lane, but advancing as prevailing roadway wagon flow order, therefore can improve the flow speeds of traffic intersection, can avoid wasting the time of waiting for bus because waiting traffic lights, with the energy; 2. because the present invention is designed with matrix sidewalk under the oblique bridge approach of primary and secondary arterial highway mouth, and the ground at the bottom of bridge is People's Bank of China's clear passage, thoroughly solve the phenomenon of people, Che Zhenglu, be conducive to pedestrains safety to pass through and the effect that can obtain sun-rain-shading, also be conducive to the current smoothly of vehicle, avoid traffic congestion and traffic accident occurs; 3. because the absolute altitude of auxiliary road of the present invention and oblique bridge approach is positive 2 meters, negative 1 meter, within extension radio frequency channel can be controlled in 30-40 rice, therefore its difficulty of construction is little, and cost is relatively little, is conducive to applying.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is structural representation plan view of the present invention.

In figure: A is direct lane; B is left lateral track, and C is right lane; A, B are track mixed with left lateral of keeping straight on, and arrow is upwards up direction, and arrow is downwards down direction, and arrow is that arc represents left lateral direction, one, two, three, four four crossings being respectively cross crossing, city.

Detailed description of the invention

With reference to accompanying drawing: on the major trunk roads ground at cross crossing, city, the straight type bridge floor of first floor is supported with by reinforced concrete upright column, oblique bridge approach is provided with between this straight type bridge floor and corresponding ground, crossing, on the subsidiary road ground at cross crossing, city, the shape of a saddle ramp of the second layer is supported with by reinforced concrete upright column, oblique bridge approach is provided with between this shape of a saddle ramp and corresponding ground, crossing, the discrepancy in elevation of 2.5-3 rice is provided with between first floor bridge floor and second layer bridge floor, the discrepancy in elevation of 2-2.5 rice is provided with between first floor bridge floor and ground, can ensure current across tall and big in 4.5 meters, 4 left rotaring ring road slope access bridges for left lateral vehicle to run are provided with between circuit face and first floor bridge floor in second layer shape of a saddle ramp, each oblique bridge approach ramp at cross crossing is respectively provided with 7 runways: the C1 at first crossing is upper right line track, A1/B1 keeps straight on and left lateral road mixes capable up-run lane, A1 is straight up-run lane, two A3 are two articles of straight descending tracks at the 3rd crossing, B2 is the lower left line track at second crossing, and C4 is the lower right line track at the 4th crossing, the C2 at second crossing is upper right line track, A2/B2 keeps straight on and left lateral road mixes capable up-run lane, and A2 is straight up-run lane, and two A4 are two articles of lower direct lanes at the 4th crossing, B3 is the lower left line track at the 3rd crossing, and C1 is the lower right line track at first crossing, the C3 at the 3rd crossing is upper right line track, A3/B3 keeps straight on and left lateral road mixes capable up-run lane, and A3 is straight up-run lane, and two A1 are two lower direct lanes at first crossing, B4 is the lower left line track at the 4th crossing, and C2 is the lower right line track at second crossing, the C4 at the 4th crossing is upper right line track, A4/B4 keeps straight on and left lateral road mixes capable up-run lane, and A4 is straight up-run lane, and two A2 are two straight descending tracks at second crossing, B1 is the lower left line track at first crossing, and C3 is the lower right line track at the 3rd crossing, be equipped with to recessed spill sidewalk below the oblique bridge approach of the primary and secondary arterial highway, ground of cross urban traffic intersection, the ground under first floor bridge floor is provided with and has free passage.

The Vehicle Flow introducing each track, first crossing of major trunk roads is below: vehicle, from bridge the C1 upper right line track of first floor bridge floor, completes the task of right-hand bend from the C1 down ramp at second crossing through right-hand rotation ring road; The craspedodrome of vehicle from A1/B1 of left lateral or craspedodrome and the mixing up-run lane of left lateral, when arriving the left rotaring ring road slope access bridge of the second layer in the middle part of first floor bridge floor, left lateral vehicle is climbed to second layer shape of a saddle ramp bridge floor through B1, again to the B1 lower left line track Xia Qiao at the 4th crossing, complete the task of left-hand bend; Through vehicles then continues to keep straight on, the descending track Xia Qiao of the A1 through the 3rd crossing; Because the vehicle of keeping straight on is many, be therefore provided with separately an A1 up-run lane of keeping straight on, the vehicle car in this track is from the A1 up-run lane of first floor bridge floor, and the straight descending track Xia Qiao of the A1 directly through the 3rd crossing, completes gap bridge task fast.

The Vehicle Flow introducing each track, second crossing of subsidiary road below is again: vehicle, from bridge the right lateral C2 up-run lane of first floor bridge floor, completes the task of right-hand bend from the C2 lower right line track at the 3rd crossing through right-hand rotation ring road; The craspedodrome of vehicle from A2/B2 of left lateral and craspedodrome and the mixing up-run lane of left lateral, the current process of keeping straight on or turning left directly is completed to second layer bridge floor shape of a saddle ramp, left lateral vehicle uses Correct Lane through shape of a saddle ramp descending to first floor bridge floor through B2, again to bridge under the B2 lower right line ring road at first crossing, complete the task of left-hand bend; Through vehicles then continues to keep straight on, the descending track Xia Qiao of the A2 through the 3rd crossing; Because the vehicle of keeping straight on is many, therefore be provided with separately an A2 up-run lane of keeping straight on, the vehicle car in this track from the A2 up-run lane of second layer shape of a saddle ramp bridge floor, the straight descending track Xia Qiao of the A2 directly through the 4th crossing, and dock with road surface, complete gap bridge task fast.

Claims

1. a spiral type overpass, include direct lane, right-hand rotation ring road, left rotaring ring road, shape of a saddle ramp, column and oblique bridge approach, it is characterized in that: the flat type bridge floor being supported with first floor on the ground major trunk roads of cross urban traffic intersection by many root posts, the ground subsidiary road of cross urban traffic intersection is supported with by many root posts the shape of a saddle ramp bridge floor of the second layer, first floor bridge floor 2.5-3 rice above ground level, second layer bridge floor exceeds first floor bridge floor 3-3.5 rice; Be equipped with oblique bridge approach at each crossing, each oblique bridge approach be respectively provided with 6-7 bar track, between the inner ring and first floor bridge floor of second layer bridge floor, be provided with 4 ring roads for left lateral; Described oblique bridge approach is the ramp of four crossing terminals, which is provided with upper right line, lower right line, directly up, two straight descending, lower left lines, straight, left mixed up totally 7 tracks, or be provided with upper right line, lower right line, directly up, directly descending, lower left line, straight, left mixed up totally 6 tracks.

2. spiral type overpass according to claim 1, it is characterized in that: be equipped with below the primary and secondary arterial highway, ground of cross urban traffic intersection to recessed matrix sidewalk, the ground under bridge floor is provided with the exclusive region had free passage for pedestrian and non motorized vehicle.