CN102400425A

CN102400425A - Spiral type overpass

Info

Publication number: CN102400425A
Application number: CN2010102764257A
Authority: CN
Inventors: 张铭钧
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-09
Filing date: 2010-09-09
Publication date: 2012-04-04
Anticipated expiration: 2030-09-09
Also published as: CN102400425B

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

The spiral fashion so overpass bridge

Technical field

[0001] the present invention relates to a kind of overpass bridge, is a kind of spiral fashion so overpass bridge that is applicable to the cross traffic intersection in city specifically.

The cross traffic intersection in city, because of vehicle flowrate is big, the pedestrian that passes by on one's way is many, for avoiding taking place traffic jam and major traffic accidents, is equipped with overpass bridge on the large-scale traffic major trunk roads in some cities.There are two outstanding contradictions in the existing overpass bridge in current each city; The one, do not belong to complete intercommunication type; Major trunk roads and subsidiary road wagon flow can't turn left to select, and the 2nd, the overpass bridge that having turns left selects function is to take Mu lucerne leaf formula overpass bridge principle mostly, it is to keep to the right earlier to cross laterally in the street and then take the mode of dextrorotation to dock with horizontal road surface to conflux that step is selected in its left-hand bend; Thereby; Interflow and the phenomenon of shunting in certain distance, occur, so both influenced traffic efficiency, also brought the hidden danger of security incident.

Summary of the invention

For overcoming the above-mentioned defective of present urban interchange; The present invention provides a kind of spiral fashion so overpass bridge scheme, so that let pedestrian and non power driven vehicle in the FOH of dividing, ground is current under bridge; Motor vehicles are then accomplished achiasmate current fast on traffic route separately through overpass bridge; Provide convenience, pass through efficiently for pedestrian and vehicle to greatest extent, accomplish that safety and efficiency improves synchronously, and reach the order ground of human and vehicle shunting.

For solving its technical problem; The technical scheme that the present invention adopts is: design the spiral fashion so overpass bridge that includes 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 that 1. on the major trunk roads of the ground of cross urban traffic intersection, is supported with first floor through many root posts; On the subsidiary road of the ground of cross urban traffic intersection, be supported with the shape of a saddle ramp bridge floor of the second layer through many root posts; First floor bridge floor 2.5-3 rice above ground level, second layer bridge floor exceed first floor bridge floor 3-3.5 rice; Be equipped with oblique bridge approach at each crossing, respectively be provided with 6-7 bar track on each oblique bridge approach, between the interior ring of second layer bridge floor and first floor bridge floor, be provided with 4 ring roads that are used for left lateral; 2. said oblique bridge approach is the ramp of four end points; Which is provided with upper right row, bottom right row, directly up, two straight descending, a left side is descending, straight, up totally 7 tracks are used on a left side with, or be provided with upper right row, bottom right row, directly up, directly descending, a left side is descending, straight, up totally 6 tracks are used on a left side with; 3. below the ground of cross urban traffic intersection master, subsidiary road, be equipped with to recessed matrix sidewalk, the ground under the bridge floor is provided with and supplies a pedestrian and non motorized vehicle exclusive zone that has free passage.。

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 various vehicles can both be by the direction running of own needs; The vehicle of left lateral particularly; Need not to detour or changing Lane, but advance, therefore can improve the wagon flow speed of traffic intersection as prevailing roadway wagon flow order; Can avoid because of waiting traffic lights to waste the time of waiting for bus, with the energy; 2. leading, be designed with the matrix sidewalk under the oblique bridge approach of subsidiary road mouth because of the present invention; And the ground at the bottom of the bridge is People's Bank of China's clear passage; Thoroughly solved the phenomenon of people, Che Zhenglu; It is current and can obtain the effect that sunshade is taken shelter from rain to help pedestrains safety, also helps the current smoothly of vehicle, avoids traffic congestion and occurrence of traffic accident; 3. because the absolute altitude that auxilliary road of the present invention is an oblique bridge approach is positive 2 meters, negative 1 meter, and the extension radio frequency channel can be controlled in the 30-40 rice, so its difficulty of construction is little, cost is less relatively, helps applying.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further specified.

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

Among the figure: A is a direct lane; B is the left lateral track, and C is the right lateral track; A, B use the track with for craspedodrome and left lateral, and arrow upwards is up direction, and arrow is downwards a down direction, and arrow is that arc is represented the left lateral direction, and one, two, three, four are respectively four crossings at cross crossing, city.

The specific embodiment

With reference to accompanying drawing: on the major trunk roads ground at cross crossing, city; Be supported with the straight type bridge floor of first floor through reinforced concrete upright column; Be provided with oblique bridge approach between this straight type bridge floor and the ground, corresponding crossing; On the subsidiary road ground at cross crossing, city, be supported with the shape of a saddle ramp of the second layer through reinforced concrete upright column, be provided with oblique bridge approach between this shape of a saddle ramp and the ground, corresponding crossing; Be provided with the discrepancy in elevation of 2.5-3 rice between first floor bridge floor and the second layer bridge floor; Be provided with the discrepancy in elevation of 2-2.5 rice between first floor bridge floor and the ground, can ensure and current stride tall and bigly, between the interior circuit face in second layer shape of a saddle ramp and first floor bridge floor, be provided with 4 left rotaring ring road slope access bridges that are used for the left lateral vehicle to run in 4.5 meters; Respectively be provided with 7 runways on each oblique bridge approach ramp at cross crossing: the C1 at first crossing is upper right runway; A1/B1 is the up-run lane of craspedodrome and the mixed row of left lateral and road; A1 is straight up-run lane; Two A3 are two straight descending tracks at the 3rd crossing, and B2 is the left descending track at second crossing, and C4 is the bottom right runway at the 4th crossing; The C2 at second crossing is upper right runway; A2/B2 is the up-run lane of craspedodrome and the mixed row of left lateral and road, and A2 is straight up-run lane, and two A4 are two following direct lanes at the 4th crossing; B3 is the left descending track at the 3rd crossing, and C1 is the bottom right runway at first crossing; The C3 at the 3rd crossing is upper right runway; A3/B3 is the up-run lane of craspedodrome and the mixed row of left lateral and road, and A3 is straight up-run lane, and two A1 are two following direct lanes at first crossing; B4 is the left descending track at the 4th crossing, and C2 is the bottom right runway at second crossing; The C4 at the 4th crossing is upper right runway; A4/B4 is the up-run lane of craspedodrome and the mixed row of left lateral and road, and A4 is straight up-run lane, and two A2 are two straight descending tracks at second crossing; B1 is the left descending track at first crossing, and C3 is the bottom right runway at the 3rd crossing; Below the oblique bridge approach of the ground of cross urban traffic intersection master, subsidiary road, be equipped with to recessed spill sidewalk, the ground under the first floor bridge floor is provided with and has free passage.

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

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

Claims

1. spiral fashion so overpass bridge; Include the spiral fashion so overpass bridge of 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 that on the major trunk roads of the ground of cross urban traffic intersection, is supported with first floor through many root posts; On the subsidiary road of the ground of cross urban traffic intersection, be supported with the shape of a saddle ramp bridge floor of the second layer through many root posts; First floor bridge floor 2.5-3 rice above ground level, second layer bridge floor exceed first floor bridge floor 3-3.5 rice; Be equipped with oblique bridge approach at each crossing, respectively be provided with 6-7 bar track on each oblique bridge approach, between the interior ring of second layer bridge floor and first floor bridge floor, be provided with 4 ring roads that are used for left lateral.

2. a kind of spiral fashion so overpass bridge according to claim 1; It is characterized in that: said oblique bridge approach is the ramp of four end points; Which is provided with upper right row, bottom right row, directly up, two straight descending, a left side is descending, straight, up totally 7 tracks are used on a left side with, or be provided with upper right row, bottom right row, directly up, directly descending, a left side is descending, straight, up totally 6 tracks are used on a left side with.

3. a kind of spiral fashion so overpass bridge according to claim 1; It is characterized in that: below the ground of cross urban traffic intersection master, subsidiary road, be equipped with to recessed matrix sidewalk, the ground under the bridge floor is provided with and supplies a pedestrian and non motorized vehicle exclusive zone that has free passage.

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