CN1995542A - Method for transforming and building annular overpass - Google Patents
Method for transforming and building annular overpass Download PDFInfo
- Publication number
- CN1995542A CN1995542A CN 200610017307 CN200610017307A CN1995542A CN 1995542 A CN1995542 A CN 1995542A CN 200610017307 CN200610017307 CN 200610017307 CN 200610017307 A CN200610017307 A CN 200610017307A CN 1995542 A CN1995542 A CN 1995542A
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- low
- overpass
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- traffic
- annular
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000001131 transforming effect Effects 0.000 title description 6
- 230000009466 transformation Effects 0.000 claims description 10
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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- Road Paving Structures (AREA)
Abstract
The invention discloses a method for reconstructing and newly building an annular overpass, which comprises one or more low-traffic ramps (3) passing through the annular overpass from the lower part of a loop (2), wherein most of the low-traffic ramps (3) do not fall to the ground within the loop range of the annular overpass, the minimum clear height between a bottom plate of each low-traffic ramp (3) and a ground road (1) can meet the passing requirement of non-motor vehicles and pedestrians, and ramps (4) are arranged outside the loop range of the annular overpass and connected with two ends of each low-traffic ramp (3). The invention has the advantages that: 1. one or more directional left-turn or right-turn low-grade ramps are added below the ring road of the ring-shaped overpass, so that the traffic capacity of the overpass is improved, and the vehicle congestion at the intersection is relieved. 2. The motor vehicles, the non-motor vehicles and the pedestrians can conveniently pass through the overpass. 3. The newly increased reconstruction project occupies less land. The amount of removal is small or no removal is required.
Description
Technical field
The present invention relates to the design and the building method of overpass bridge, especially a kind of annular flyover transformation and newly-built method of being used for.
Background technology
All there is some uses annular flyover for many years in the many cities of China at present, because super the increasing substantially of expecting of vehicle guaranteeding organic quantity, the part annular flyover has become the stifled point of traffic, also has more annular flyover to be about to become the stifled point of traffic.Some annular flyover has to be removed (as the Jade Belt Bridge in Chengdu), and some is badly in need of transforming (as the temmoku road traffic cycle in Shanghai).Because these annular flyovers are mostly built the bustling location in city in, the place is narrow and small, and it is very big to transform difficulty.Transformation to annular flyover mostly is to remove up till now, because also there are not other good remodeling methods.
Summary of the invention
The transformation and the rebuilding method that the purpose of this invention is to provide a kind of annular flyover.
Technical scheme of the present invention is: a kind of transformation of annular flyover and rebuilding method, comprise one or one or more low car ring road passing under the circuit of annular flyover, low car ring road major part in the circuit scope of annular flyover is not landed, low car ring road base plate can satisfy the needs that bicycle and pedestrian pass through apart from the minimum clear height of ground level road, has the ramp to link to each other with two of low car ring road outside the circuit scope of annular flyover.
Advantage of the present invention:
1. below the annular flyover circuit, increased by one or one or more the directed left-hand rotation or the low car ring road of turning right, improved the traffic capacity of overpass bridge, the vehicle of having alleviated the crossing blocks up.
2. motor vehicle, bicycle and pedestrian pass through overpass in convenience.
3. improvement project is lacked newly-increased the occupation of land.The removal amount is little maybe need not remove.
4. it is little when improvement project is constructed to the influence of crossing traffic.Arrange properly during construction, most of vehicle, pedestrian can also pass through the crossing smoothly.
5. the engineering quantity of improvement project is little.Duration is short, and cost is low.
6. can be in the place the less newly-built this novel annular flyover in crossing.
Description of drawings
Fig. 1 is a plane structure schematic diagram of the present invention,
Fig. 2 is the another kind of structural representation of the present invention.
The specific embodiment
First kind of structure of the present invention be as shown in Figure 1: because ring road, the circuit of transformation process Central Plains annular flyover are motionless substantially, clear for drawing, the ring road of annular flyover does not show in the drawings.Among Fig. 11 is ground level road, and 2 is the circuit of annular flyover, 3 low car ring roads for increasing newly after transforming, 4 ramps for the low car ring road of connection that increases newly after transforming.Annular flyover of the present invention, comprise one or one or more low car ring road 3 passing for 2 times from the circuit of annular flyover, low car ring road 3 major part in the circuit scope of annular flyover is not landed, low car ring road 3 base plates can satisfy the needs that bicycle and pedestrian pass through apart from the minimum clear height of ground level road 1, have ramp 4 to link to each other with two of low car ring road 3 outside the circuit scope of annular flyover.
The another kind of structure of the present invention as shown in Figure 2.
The motor vehicle that travels on the urban road.Can be divided into Gao Che and low car by bodywork height.By the driver whether road is familiar with, can be divided into the motor vehicle of the driver driving of being familiar with road and be unfamiliar with the motor vehicle of the driver driving of road.The low car of the driver driving of being familiar with road as first kind car.Gao Che and the low car of driver driving of being unfamiliar with road as the second class car.About 90%, the second class car that the quantity of first kind car can account for the motor vehicle total amount accounts for about 10%.First kind car can be a principal contradiction by the crossing quickly.Resolve the current problem of first kind car, the second class car is also just smooth and easy by the crossing.According to above-mentioned analysis, we have invented the transformation and the rebuilding method of annular flyover.
After coming into operation by transformation of the present invention or newly-built annular flyover.Changing trains or buses in the left side (right side) of low car that a part is familiar with the driver driving of road, walks the low car ring road that newly adds under the annular flyover circuit, owing to all make easy progress from experience, can realize turning by the crossing quickly.So a part of motor vehicle has just solved by the problem at crossing quickly.High car and be unfamiliar with the low car of the driver driving of road, and this direction not have to increase the left and right circuit of all walking annular flyover of changing trains or buses that the direction of hanging down the track is sent a car.Owing to increased the low car ring road of turning after transforming, shunt a part of turning vehicle, the corresponding minimizing of the vehicle that passes through on the overpass bridge circuit has also just reduced the pressure that blocks up on the circuit.Through vehicles still passes through the crossing according to the mode before transforming.Be unfamiliar with the driver driving vehicle of road and on circuit, walk, because can be about any crossing on the circuit, sight line is also open, is difficult for wrong crossing down.The driver just can be not nervous at heart because road is unfamiliar with like this, generation that yet will the minimizing accident.
Headway under the at present general annular flyover circuit is about 5.5 meters.Building low car ring road near the height of circuit base plate.The base plate of the low car ring road of that section under the overpass bridge circuit is greater than apart from the clear height (H1) on road surface, ground and equals 2.5 meters, if 2.5 meters of clear height less than that should the place, just toward the absolute altitude on decline ground.The clear height that guarantees 2.5 meters is passing through for convenience of bicycle and pedestrian.Because a low car ring road will be from another low car ring road crossing-above, the clear height (H2) of identity distance overpass bridge circuit base plate is subjected to the influence of overpass bridge circuit radius so the bridge of the low car ring road of that section under the overpass bridge circuit is set out on a journey.The radius of overpass bridge circuit is big, and the length of grade of low car ring road is just long, and the corresponding gradient is just little, is satisfying under the prerequisite of slope requirement, and clear height (H2) might be done higherly.Otherwise clear height (H2) can only be done very lowly, and for example clear height (H2) is accomplished 2.2 meters high, only allows to be lower than 2.0 meters dolly by overall height.If satisfying under the prerequisite of slope requirement, clear height (H2) can not satisfy instructions for use, just takes to reduce the measure of low car ring road quantity, strengthens the distance between adjacent low car ring road (entry and exit), makes clear height (H2) satisfy instructions for use.In order to adjust the gradient of the low car ring road of each bar, make it to meet the demands.The absolute altitude of the low part of car ring road under the annular flyover circuit of each bar can be different, also can be different apart from the clear height (H2) of circuit base plate.For safety, the limit for height of the low car ring road of each bar of same seat overpass bridge, unified definite by wherein minimum clear height (H2).
South does not have ice and snow, and the gradient of low car ring road can be done more greatly.There is ice and snow in the north, if it is not little done by the gradient of the low car ring road of condition restriction, closes low car ring road when just on the road surface ice and snow being arranged, and treats to open low car ring road again behind the ice and snow removing on the ring road.Though at this moment traffic has been subjected to influence, it is of short duration comparing the affected time with the annual time.For safety, low car ring road can be only in the time periods of traffic peak, just and have under traffic police or the traffic administration personnel situation on duty open-mindedly, otherwise low car ring road just is in closed condition.Traffic police on duty or traffic administration personnel can be according to flow motor, climate condition and other on-the-spot situations, and low car ring road is opened or closed in decision at any time.
After the transformation, the headroom of the ground automotive road under the annular flyover still has about 4.0 meters, and general motor vehicle can both pass through.Can divide into traffic lights at annular flyover, coordinator motor-car, bicycle and pedestrian are by the crossing, ground.
Claims (1)
1, a kind of transformation of annular flyover and rebuilding method, it is characterized in that: comprise one or one or more low car ring road (3) passing under the circuit (2) from annular flyover, low car ring road (3) major part in the circuit scope of annular flyover is not landed, low car ring road (3) base plate can satisfy the needs that bicycle and pedestrian pass through apart from the minimum clear height of ground level road (1), has ramp (4) to link to each other with two of low car ring road (3) outside the circuit scope of annular flyover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610017307 CN1995542A (en) | 2006-01-05 | 2006-01-05 | Method for transforming and building annular overpass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610017307 CN1995542A (en) | 2006-01-05 | 2006-01-05 | Method for transforming and building annular overpass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1995542A true CN1995542A (en) | 2007-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610017307 Pending CN1995542A (en) | 2006-01-05 | 2006-01-05 | Method for transforming and building annular overpass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1995542A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286906A (en) * | 2011-07-13 | 2011-12-21 | 深圳大学 | Non-interweaved ring flyover |
| CN103526660A (en) * | 2013-10-21 | 2014-01-22 | 卢春发 | Symmetrical type full-interchange cross overpass with pedestrian-vehicle separation |
| CN107268361A (en) * | 2016-04-01 | 2017-10-20 | 王朝阳 | Viaduct and the method that is open to traffic |
| CN114351524A (en) * | 2020-09-02 | 2022-04-15 | 冯松松 | Double-layer overpass without traffic lights at crossroad |
-
2006
- 2006-01-05 CN CN 200610017307 patent/CN1995542A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286906A (en) * | 2011-07-13 | 2011-12-21 | 深圳大学 | Non-interweaved ring flyover |
| CN102286906B (en) * | 2011-07-13 | 2013-06-12 | 深圳大学 | Non-interweaved ring flyover |
| CN103526660A (en) * | 2013-10-21 | 2014-01-22 | 卢春发 | Symmetrical type full-interchange cross overpass with pedestrian-vehicle separation |
| CN107268361A (en) * | 2016-04-01 | 2017-10-20 | 王朝阳 | Viaduct and the method that is open to traffic |
| CN114351524A (en) * | 2020-09-02 | 2022-04-15 | 冯松松 | Double-layer overpass without traffic lights at crossroad |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |