Straight bridge with changeable paths type crossroads

An overpass and lane-changing technology, which is applied to roads, roads, buildings, etc., can solve problems such as hidden safety hazards and hidden dangers in safe driving of vehicles, and achieve the effects of long construction period, improved project economy, and improved economy

Inactive Publication Date: 2005-06-15
张宁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What adopted on the lane change measure is the S-type bridge, though several overpass bridges using the lane-changing mechanism design announced in CN1215112, CN164597, CN1105084, CN1135554 are all very creative, but all of them adopt the S-type bridge, and this type bridge has great influence on There are hidden dangers in the safe driving of vehicles. The reason is that for overpasses, the pursuit is to pass quickly under the premise of safety. It is indeed a safety hazard that the vehicle turns twice in a row when the speed is fast and the bridge road is narrow. It is when this S-shaped bridge with two consecutive turns appears on the downhill slope

Method used

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  • Straight bridge with changeable paths type crossroads
  • Straight bridge with changeable paths type crossroads
  • Straight bridge with changeable paths type crossroads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0027] Referring to Fig. 1, 2, 5, two straight bridge lane-changing bridges 7 and 8 starting points are arranged on the up and down roads at the crossroads and are positioned at the bottom of the left-hand turning bridge 6 and 5 inner bends of the left and right sides, the up and down road inner road, and the center 17, 16 to the end point are integrated with the downhill 1 / 2 slope length of the left-turn bridge 6, 5, the end point of the lane-changing bridge is located in the inner lane of the up and down road, and the starting point of the two road-changing cuttings 14, 15 is connected with the straight bridge lane-changing The ends of bridges 7 and 8 are juxtaposed and placed in the inner lane of the lane-changing bridge. Go under the lane-changing bridge and juxtapose the center of the left-turning bridge 17 and 16 to complete the lane change, and the end point is below the outer bend of the left-turning bridge 6 and 5 and parallel to the starting point of the straight brid...

Embodiment approach 2

[0037] see image 3 4. Two straight bridges 7 and 8 are set on the up and down roads at the crossroads. The starting point is located below the inner bend of left-turn bridges 6 and 5, the middle of the up and down roads, and the end point ends at the inner road of the up and down roads. , it is not conjoined with the left-turn bridge 6,5, and the left-turn vehicle on the up and down road passes through the center of the straight bridge lane-changing bridge 7,8 from the ground road up and down and implements a lane change. From image 3 As can be seen from the comparison of Fig. 2, the difference between the present embodiment and embodiment 1 is that the straight bridge lane-changing bridge 7,8 is a viaduct, and it is not conjoined with the left-turn bridge 5,6, and the cuttings 14,15 are therefore Cancellation, the rest of the structure and vehicle flow are consistent with Embodiment 1, so it is not repeated.

Embodiment approach 3

[0039]Referring to Fig. 6, the straight bridge lane change method of the straight bridge lane change type overpass is also applicable to the underground double-layer traffic network system. The underpass tunnels 29 and 30 for straight lane change, the starting point is located at the inner bend of the left turn lanes 5 and 6 of the left and right roads, the middle road of the up and down roads, the end point is the middle road of the up and down roads, and the original bridge on the left and right roads 1, 2, 3, 4, 5, 6, and 9 are replaced by underpass tunnels, and the underground double-layer full intercommunication is formed by connecting the two sides of the tunnel with ground level bridges 20, 21, 22, 23, and 24 at the vehicle interchange overpass. The layout structure of this embodiment is completely consistent with Embodiment 2, the difference is that the bridge is changed into an underpass tunnel, and its vehicle flow direction is consistent with Embodiment 2, so it wil...

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Abstract

Straight bridge lane-changing overpass of the present invention comprises the low-height straight bridge lane-changing bridge (7,8) that is located at two 1 / 2 passing heights of intersecting road longitudinal direction, 2 cuttings (14,15) of 1 / 2 passing depth ) and the overpass bridge (9) set on the transverse road and its four straight bridge lane-changing approach bridges (1, 2, 3, 4) and two left-turn bridges (5, 6). It avoids two consecutive turns of vehicles in the case of fast speed and narrow bridge deck, which improves the safety and passing speed of vehicles. There is no ramp that extends outwards and does not occupy land. In the case of relatively crowded urban space, it does not align with the surroundings of the road. For building demolition, underpass non-motor vehicle walkways 10, 11, 12, 13 are set up under the intersection to completely solve the separation of motor vehicles and non-motor vehicles. Due to the simple single-layer structure, all bridge underpass tunnels can be replaced. Become a fantastic overpass without a bridge. Applicable to specific surrounding environment.

Description

technical field [0001] The invention relates to an overpass, in particular to a straight bridge lane-changing overpass. Background technique [0002] When the vehicle in the road is traveling on the left, it will form an intersection with the opposite lane (and vice versa in countries where the vehicle is traveling on the left). This is impassable unless an overpass is used. The lane-changing overpass converts the forward and reverse lanes in the road through the lane-changing bridge, so that the vehicle is falsely occupying the reverse lane; after completing its running direction, it changes lanes again to return to normal. By changing lanes, the vehicles that originally intersected with it become disjoint, so that one lane can bear the vehicles of other lanes that merge in and out in the same direction; the utilization rate of the road is improved. The problems that can only be solved by three-dimensional intersection are transformed into planar ortho-intersection to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C1/04
Inventor 张宁
Owner 张宁
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