CN1076771C

CN1076771C - Design plan of highway turnable single-deck stereo cross bridge

Info

Publication number: CN1076771C
Application number: CN 97109856
Authority: CN
Inventors: 庞树仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-09
Filing date: 1997-05-09
Publication date: 2001-12-26
Anticipated expiration: 2017-05-09
Also published as: CN1165892A

Abstract

The present invention relates to a design method of an overpass at the road crossing point. In the method, a road is used as a main road and is designed into a left part, a middle part and a right part which are all positioned below a ground surface, the middle part is provided with a direct carriageway, and the left part and the right part are provided with turn carriageways. The far end of every carriageway is provided with an upper ramp and a lower ramp of which the high points are flat with the ground, and turn bridges connected with a left carriageway and a right carriageway are built in the low point of a ramp of a middle carriageway. The other perpendicular road is connected with a lower carriageway at the crossing through the ramp, and the upper part of the crossing and two sides of the road are provided with street crossing overpasses for bicycles and pedestrians. The scheme has the advantages of low cost and easy construction.

Description

Highway turnable single-deck stereo cross bridge

The present invention relates to the improvement of a kind of cross-road place overpass bridge.

At present, at road bridge particularly in the intersection overpass bridge design-build, be on the road surface high-altitude and build bridge, its deficiency is that difficulty of construction is big, designing requirement is tighter, cost cost height, and the pedestrian is reluctant to walk underground passage or overpass and influences traffic or cause casualty accident to take place.

The object of the invention provides the lower underground or semi-underground genuine formula highway turnable single-deck stereo cross bridge of a kind of easy cost of constructing.

Overpass bridge of the present invention comprises:

The first, select a highway as primary highway, three part tracks, left, center, right are built up on this road, and three parts are positioned at all on underground or the ground at crossing intersection part;

The second, the track, middle part in first to be built up direct lane and comprised up, descending two bursts of tracks, divider wall can be established in the centre, and a up and down ramp is respectively built at the direct lane two ends, the high point in ramp or low spot and ground flat; It is characterized in that

The 3rd, with craspedodrome road ramp, two ends low spot in second or high some inside front or below respectively build a steeraxle that connects left and right two parts track or revolution track and and ground flat;

Left and right two parts track is an added turning lane in the four, the first, the 3rd, and builds up upper and lower ramp from steeraxle or revolution inboard, track, the high point in ramp or low spot and ground flat, and ramp low spot or height are put underground with crossing intersection part or the track, ground is connected;

The 5th, the highway vertical with primary highway in first respectively built a ramp in the both sides, intersection, the high point in road or low spot and ground flat, and ramp low spot or height are put underground with crossing or the track, ground is connected;

The 6th, above or below the intersection, reach both sides of highway and build up the bicycle equal and pedestrian bridge or road with ground.

Advantage of the present invention and good effect: 1, the present invention is beneath overpass bridge, and ground is bicycle and pedestrian bridge, can save the way of building bridge in the ordinary highway high-altitude, the cost that makes the intersection build overpass bridge descend near half; 2, overhead pedestrian crossing load-bearing in ground is lighter, so cost is also lower, easily construction, overhead pedestrian crossing can be made simultaneously can lift movable so that by large-scale and Overheight Vehicles; 3, motor vehicle travels at underground, and overhead pedestrian crossing and ground flat, reduces in the past the passed by trouble of street overline bridge and underground passage of pedestrian, accomplishes that really Pedestrians and vehicles takes their own roads, and avoids the caused traffic accident of pedestrian's highway crossing in the past to take place; 4, this underground interchange bridge occupation of land is less, is particularly suitable for the transformation of mature city intersection.

Specific embodiment of the invention accompanying drawings is as follows:

Fig. 1, the underground single-deck stereo cross bridge motorway of highway are built schematic diagram;

Motor vehicle traffic route schematic diagram among Fig. 2, Fig. 1;

Fig. 3, bicycle and pedestrian bridge's schematic diagram;

Fig. 4, six prong road overpass are built schematic diagram.

Embodiment 1:

As shown in Figure 1, selecting a highway A-A is primary highway, left A1 is built up on this road, middle A2, right A3 three part tracks, and three parts all are positioned at underground at crossing intersection part, its degree of depth is 2～6 meters, the degree of depth commonly used is 4～5 meters, with track, middle part A2 build up direct lane and, comprise up, descending two bursts of tracks, divider wall can be established in the centre, a up and down ramp 1 is respectively built at the direct lane two ends, 2, high point in ramp and ground flat, ramp low spot 3,4 inside fronts are respectively built one and are connected a left side, the steeraxle 5 in right two parts track, 6, this bridge and ground flat, a left side, right two parts track A1, A3 is an added turning lane, and build up from the steeraxle inboard, gug 7,8,9,10, high point in ramp and ground flat, the ramp low spot is connected with the underground track of crossing intersection part, and highway B-B that will be vertical with primary highway A-A respectively builds a ramp 11 in the both sides, intersection, 12, high point in ramp and ground flat, the ramp low spot is connected with crossing underground track, and all ramp gradients are 5～25%, and the gradient commonly used is 5～10%.Above the intersection, reach both sides of highway and build up bicycle equal and pedestrian bridge C, as Fig. 3 with ground.

The motor vehicle traffic route as shown in Figure 2, as from highway B-B driving vehicle, during craspedodrome, turn right earlier, sail the opposite side Turning Roadways into through added turning lane and steeraxle from the crossing, locate to turn right again to the crossing, no longer turning right as place, crossing more promptly becomes from the B-B highway to turn left to the A-A highway, and a is for turning right among the figure, and b is for keeping straight on, c is left-hand rotation, travels and turn to and prevent this in all the other crossings.This bridge also can all build up grade separation on the ground, under ground portion is changed on the ground get final product.

Embodiment 2:

Six forks or five cross road mouth overpass bridges are seen Fig. 4, with left-hand lane A1 among Fig. 1, build up two bursts of tracks, fast lane 13 and Fig. 1 are together, kerb lane 14 and middle straight runway A2 with, and design intersect bridge 15 and an intersection D who is communicated with steeraxle thereon and join, an overhead pedestrian crossing 16 is designed in the preceding stage casing of prong, both sides are up and down

ramp

17,18, and all the other and Fig. 1 are together.

Claims

1, a kind of highway turnable single-deck stereo cross bridge, this bridge comprises:

The second, the track, middle part in first to be built up direct lane and comprised up, descending two bursts of tracks, divider wall can be established in the centre, and a up and down ramp, ramp height are respectively built in the direct lane two ends

Point or low spot and ground flat; It is characterized in that

The 5th, the highway vertical with primary highway in first respectively built a ramp in the both sides, intersection, the high point in ramp or low spot and ground flat, and ramp low spot or height are put underground with crossing or the track, ground is connected;

2, highway turnable single-deck stereo cross bridge according to claim 1 is characterized in that the crossing intersection part underground track degree of depth or ground bridge height are 4 to 5 meters, and the ramp gradient is 5%～25%.

3, highway turnable single-deck stereo cross bridge according to claim 2 is characterized in that crossing intersection part ramp gradient the best is 5%～10%.