Single-layer full interchange viaduct

Abstract

The invention discloses a single-layer full interchange viaduct, which comprises an east-west ground artery, a south-north overhead artery and four road junctions, wherein each road junction has five running lanes and one left-right lane change viaduct; a southwest bend, a southeast bend and east-south bend are all ground roads; a north-south straight lane is connected with an east running lane of the south-north overhead artery through an approach bridge; a south-north straight lane is connected with a west running lane of the south-north overhead artery after the left-right lane change viaduct spans the north-south straight lane, and is connected with a south-west bend through the south-north overhead artery; the running lane of the north road junction is in inverse symmetry with the running lane of the south road junction; the running lane of the east road junction is similar to that of the south road junction, but the straight lane of the east road junction is connected with the east-west ground artery; and the running lane of the west road junction is in inverse symmetry with the running lane of the east road junction. The single-layer full interchange viaduct realizes right passing when turning right and left passing when turning left so that vehicles can pass naturally, smoothly and quickly during turning left and turning right, the occupied area is small, and the building height is low.

Description

technical field [0001] The invention relates to a completely intercommunicating highway overpass, in particular to a single-layer completely intercommunicating overpass. Background technique [0002] A fully interchangeable overpass refers to an overpass that enables all roads that meet at an intersection to communicate with each other. All the roads that need to cross are achieved through different elevations. The communication between roads at different elevations is realized through special ramps, so that any vehicle entering the intersection can turn left, turn right and go straight. Therefore, the fully interchangeable overpass is the most perfect form of overpass so far. figure 1 and figure 2 Two typical forms of fully interchangeable overpasses are shown. The first of these is the single-layer crossover. These forms of overpass bridges can better solve the conflict problem between vehicles in different directions at the intersection. but, figure 1 The main dis...

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Problems solved by technology

but, figure 1 The main disadvantages of the overpass bridge shown are: (1) large area, increasing the construction cost under the condition of increasingly scarce land resources, and also limiting the adoption of most intersections in the city; (2) turning left 270° detour, long driving distance, increased energy consumption and reduced efficiency

figure 2 The main disadvantage of the overpass bridge shown is: too many intersecting floors, resulting in increased building height and too long approach bridge, which not only increases the construction cost and operation and maintenance cost, but also greatly reduces the structural performance, especially the seismic performance

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