CN105256680A - Double-layer-structure overpass at crossroad - Google Patents

Double-layer-structure overpass at crossroad Download PDF

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CN105256680A
CN105256680A CN201510703323.1A CN201510703323A CN105256680A CN 105256680 A CN105256680 A CN 105256680A CN 201510703323 A CN201510703323 A CN 201510703323A CN 105256680 A CN105256680 A CN 105256680A
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curved
bridge
turning
turn
overpass
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李益安
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李益安
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Abstract

The invention relates to an overpass, in particular to a double-layer-structure overpass at a crossroad. The overpass comprises twelve lanes. Four right-turning lanes and two through lanes are arranged on the first-layer ground, and four left-turning lanes and the other two through lanes are arranged on the second-layer overpass floor. The double-layer-structure overpass is characterized in that as four corners (or three corners, or five corners) are used, all the left-turning lanes extend from the first-layer ground to the second-layer overpass floor and then extend from the second-layer overpass floor to the first-layer ground to achieve left turning. Meanwhile, the other two through lanes extend from the first-layer ground to the second-layer overpass floor and then extend from the second-layer overpass floor to the first-layer ground to achieve through traveling. In order to achieve passing of coming and going pedestrians, four pedestrian paths are arranged on the first-floor ground of the overpass, and meanwhile road traffic signal lamps shared by the coming and going pesticides and coming and going vehicles are arranged. By means of the overpass, overpass falling accidents can be avoided.

Description

Crossroad double-layer structure overpass bridge
Technical field
The present invention relates to a kind of overpass bridge, in particular, the present invention relates to a kind of crossroad double-layer structure overpass bridge being different from existing overpass bridge.
Background technology
Due on existing overpass bridge, track of turning round is very near at distance bridge floor edge, corner, and when the speed of a motor vehicle is too fast or action of turning round is crossed slow, easily fall down from the bridge accident.Such as: the accident of falling down from the bridge occurred Tianjin Ba Litai overpass bridge and the accident of falling down from the bridge occurred Qingdao City's Hangzhou road overpass bridge.For this situation, crossroad double-layer structure overpass bridge is proposed here.Overpass bridge four turns left sweep corner all at bridge floor center, also far from bridge floor edge, and can not fall down from the bridge accident.Even if the speed of a motor vehicle is too fast or action of turning round is excessively slow, the vehicle that turns round can overturn, and also can not fall down bridge and go.
Summary of the invention
Overpass bridge of the present invention is crossroad double-layer structure overpass bridge.Overpass bridge arranges 12 tracks.One deck ground of overpass bridge arranges four turn right sweep and two direct lanes, and two layers of bridge floor arrange four turn left sweep and two other direct lanes.Essence of the present invention exactly with four turn round (or three turn round or five turn round), makes every bar sweep of turning left go to two layers of bridge floor by one deck ground, then go to one deck ground by two layers of bridge floor, and it is curved to realize turning left.Meanwhile, make two other direct lane go to two layers of bridge floor by one deck ground, then go to one deck ground by two layers of bridge floor, and realize keeping straight on.In order to solve the current problem of pedestrians, be provided with four walkwaies on one deck ground of overpass bridge, and be provided with the road traffic signal lamp that pedestrians and car share simultaneously.Five parts are divided into describe summary of the invention in detail below:
Part I: one deck ground
One deck ground of overpass bridge arranges four turn right sweep and two direct lanes.Article four, sweep of turning right is: to be turned right sweep by south east, to be turned right sweep by north west, to be turned right sweep by north east, to be turned right sweep by west south.
Fig. 1, Fig. 2 are that figure is moved towards in track, one deck ground.Two direct lanes arranged in Fig. 1 are: from south to north direct lane and by north orientation south direct lane.Two direct lanes arranged in Fig. 2 are: direct lane and from west to east direct lane from east to west.
At Fig. 5, Fig. 6, Fig. 9, Figure 10, Figure 13, Figure 14, Figure 15, Tu16Zhong, two direct lanes on one deck ground, at two layers of bridge floor lower part, are blocked by two layers of bridge floor, do not draw.
Part II: two layers of bridge floor
Two layers of bridge floor of overpass bridge are the planes be formed by connecting by four turn left sweep and two other direct lanes.Fine line is two layers of bridge floor outline line, and two layers of bridge floor are cross shape massive plates.Article four, sweep of turning left is: to be turned left sweep by south orientation west, to be turned left sweep by north orientation east, to be turned left sweep by east orientation south, northwards to be turned left sweep by west.
Fig. 3, Fig. 4, Fig. 7, Fig. 8, Figure 11, Figure 12 are that figure is moved towards in two layers of bridge floor track.In Fig. 3, Fig. 7, Figure 11, two other direct lane is: direct lane and from west to east direct lane from east to west.In Fig. 4, Fig. 8, Figure 12, two other direct lane is: from south to north direct lane and by north orientation south direct lane.
The shape of layer bridge floor of two shown in Fig. 3, Fig. 4, Fig. 7, Fig. 8, Figure 11, Figure 12 is cross shape.
In figure 3, consistent by gug and the gug travel direction from east to west in south orientation west, descending starting point, terminal, two down slope can be merged into a ramp.Consistent by gug and the gug travel direction from west to east in north orientation east, descending starting point, terminal, two down slope can be merged into a ramp.
In the diagram, consistent by west gug northwards and gug travel direction from south to north, descending starting point, terminal, two down slope can be merged into a ramp.Gug by east orientation south and the gug travel direction by north orientation south, descending starting point, terminal are consistent, and two down slope can be merged into a ramp.
In the figure 7, up gradient is from east to west consistent with by the up gradient travel direction in east orientation south, upward slope starting point, terminal, and two steep uphill can be merged into a ramp.Up gradient is from west to east consistent with by the left northwards up gradient travel direction in west, upward slope starting point, terminal, and two steep uphill can be merged into a ramp.
In fig. 8, up gradient is from south to north consistent with by the up gradient travel direction in south orientation west, upward slope starting point, terminal, and two steep uphill can be merged into a ramp.Up gradient by north orientation east and the up gradient travel direction by north orientation south, upward slope starting point, terminal are consistent, and two steep uphill can be merged into a ramp.
In fig. 11, consistent by northwards the turn left up gradient travel direction of up gradient and direct lane from west to east of sweep, upward slope starting point, terminal of west, two steep uphill can be merged into a ramp.Consistent by the turn left gug travel direction of gug and direct lane from west to east of sweep, descending starting point, terminal of north orientation east, two down slope can be merged into a ramp.
In fig. 12, consistent with by the up gradient travel direction of the southern direct lane of north orientation, upward slope starting point, terminal by the turn left up gradient of sweep of north orientation east, two steep uphill can be merged into a ramp.Consistent with by the gug travel direction of the southern direct lane of north orientation, descending starting point, terminal by the turn left gug of sweep of east orientation south, two down slope can be merged into a ramp.
Part III: walkway
On one deck ground of overpass bridge, four walkwaies are set, road traffic signal lamp is set above the import department of direct lane direction to the car.Pedestrian, vehicle according to the display of road traffic signal lamp, can wait or pass through.Realize pedestrian and vehicle alternately current.Road traffic signal lamp adopts two step endless form: pedestrian → vehicle → pedestrian → vehicle ...
Part IV: the path of four sweeps of turning left
Four sweeps of turning left shown in Fig. 3 to Figure 14, every bar sweep of turning left has four to turn round, and wherein, turns left curved for three, turns right curved for one.Four are turned round, and three angles of turning round are very little, and just straight line is somewhat curved, only has a curved angle of turning round of turning left close to 90 degree.In figure 3, by the western track of south orientation with by the path in track, north orientation east be: curved → bridge opening of keeping straight on → pass through → craspedodromes → upward slope → bis-layer bridge floor of turning left → turn left curved → curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of keeping straight on → turn right → curved → craspedodrome → descending of keeping straight on → turn left → one deck ground in the diagram, by track and identical with above-mentioned path by the path in the southern track of east orientation northwards, west.
In figure 3, by east orientation track, south with by the path in northwards track, west be: curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of turning left → curved → → bis-layers of bridge floor of keeping straight on → go up a slope of turning right → keep straight on → turn left curved → curved → craspedodromes → descending of keeping straight on → turn left → one deck ground in the diagram, by the eastern track of north orientation and identical with above-mentioned path by the path in the western track of south orientation.
In the figure 7, by the western track of south orientation with by the path in track, north orientation east be: → bis-layers of bridge floor that go up a slope → curved → curved → craspedodromes → descending of keeping straight on → turn left → one deck ground of keeping straight on → turn left → curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of turning right → keep straight on → turn left is curved → craspedodrome in fig. 8, by track and identical with above-mentioned path by the path in the southern track of east orientation northwards, west.
In the figure 7, by east orientation track, south with by the path in northwards track, west be: → bis-layers of bridge floor that go up a slope → curved → curved → curved → craspedodromes → descending of keeping straight on → turn left → one deck ground → bridge opening of keeping straight on → pass through of keeping straight on → turn right of keeping straight on → turn left → keep straight on → turn left curved → craspedodrome in fig. 8, by the western track of south orientation and identical with above-mentioned path by the path in the eastern track of north orientation.
In Figure 11 by the western track of south orientation and Figure 12 by the path in northwards track, west being: curved → bridge opening of keeping straight on → pass through → craspedodrome → upward slope → bis-layer bridge floor → curved → craspedodrome → descending of turning left → one deck ground → curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of keeping straight on → turn right of keeping straight on → turn left → keep straight on → turn left is curved → keeps straight on
In Figure 11 by north orientation track, east and Figure 12 by the path in track, east orientation south be: curved → bridge opening of keeping straight on → pass through → craspedodrome → upward slope → bis-layer bridge floor of keeping straight on → turn left → curved → curved → curved → craspedodrome → descending of keeping straight on → turn left → one deck ground of keeping straight on → turn right of turning left
In Figure 11 by east orientation track, south and Figure 12 by the path in the western track of south orientation be: curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of turning left → curved → → bis-layers of bridge floor → curved → curved → craspedodrome → descending of keeping straight on → turn left → one deck ground of keeping straight on → turn left of keeping straight on → go up a slope of keeping straight on → turn right
In Figure 11 by west northwards track and Figure 12 by the path in track, north orientation east be: → bis-layers of bridge floor that go up a slope → curved → curved → curved → curved → craspedodrome → descending of keeping straight on → turn left → one deck ground → craspedodrome of keeping straight on → turn left of keeping straight on → turn right of keeping straight on → turn left
Four sweeps of turning left shown in Figure 15, every bar sweep of turning left has three to turn left curved, and three curved totals of turning left turn round 90 degree, due to the restriction of drawing, figure paints first turn round and the 3rd angle of turning round bigger than normal, second angle of turning round is less than normal.In fact, first is turned round very little with the 3rd angle of turning round, and just straight line is somewhat curved.Second is turned round close to 90 degree.
Four sweeps of turning left shown in Figure 16, every bar sweep of turning left has five to turn round, and wherein, turns left curved for three, turns right curved for two.Five are turned round, and only having one to turn left curved is 90 degree, all the other four angles of turning round of turning round are very little, and just straight line is somewhat curved.
Part V: about giving up the suggestion of overpass bridge bridge pier
In order to draw the bitter lesson of high speed riverhead, Jiangxi, Guangdong ring road fracture collapse accident, Harbin three ring efforts of everyone viaduct ring road capsizing case, 104 Shangyu, national highway Zhejiang light of spring overpass bridge cave-in accidents, Shanxi, Tianjin expressway ramp bridge cave-in accident, Henan Yi Chang bridge cave-in accident, the bridge pier of overpass bridge is given up in suggestion, the pontic under the part bridge floor of overpass bridge and ramp, make the body of wall with brick one-tenth into.Clay filling is used in body of wall inside.When pontic has track or a walkway below part bridge floor and ramp, leave bridge opening.Highly not too high solid wall is solid not easily to collapse, and cost will lower than bridge pier pontic.
The advantage of overpass bridge of the present invention:
(1) overpass bridge only has two layers of bridge floor, and the ramp, six tracks via two layers of bridge floor is shorter, reduces investment outlay.
(2) floor space of overpass bridge is less, saves the area.(3) two layers of bridge floor are block massive plates, and track of turning round can not fall down from the bridge accident.
Accompanying drawing explanation
Fig. 1: turn right sweep and two north-south direct lanes of four, one deck ground move towards figure.
Fig. 2: turn right sweep and two East and West direction direct lanes of four, one deck ground move towards figure.
Turn left sweep and two East and West direction direct lanes of Fig. 3: two layers of four, bridge floor move towards figure.
Turn left sweep and two north-south direct lanes of Fig. 4: two layers of four, bridge floor move towards figure.
Article Fig. 5: two, north-south direct lane is when one deck ground, and figure is moved towards in overpass bridge 12 tracks.
Article Fig. 6: two, East and West direction direct lane is when one deck ground, and figure is moved towards in overpass bridge 12 tracks.
The second technique of painting of Fig. 7: Fig. 3.
The second technique of painting of Fig. 8: Fig. 4.
The second technique of painting of Fig. 9: Fig. 5.
The second technique of painting of Figure 10: Fig. 6.
The third technique of painting of Figure 11: Fig. 3.
The third technique of painting of Figure 12: Fig. 4.
The third technique of painting of Figure 13: Fig. 5.
The third technique of painting of Figure 14: Fig. 6.
Figure 15: figure is moved towards in every bar 12 tracks that sweep has three to turn round of turning left.
Figure 16: figure is moved towards in every bar 12 tracks that sweep has five to turn round of turning left.
Detailed description of the invention
In Fig. 1 to Figure 16 and Figure of abstract, to mark digital connotation as follows: 1: number track, from south to north a direct lane.2: No. two tracks, by north orientation south direct lane.3: No. three tracks, from east to west direct lanes.4: No. four tracks, from west to east direct lanes.5: No. five tracks, to be turned right sweep by south east.6: No. six tracks, to be turned right sweep by north west.7: No. seven tracks, to be turned right sweep by north east.8: No. eight tracks, to be turned right sweep by west south.9: No. nine tracks, to be turned left sweep by south orientation west.10: No. ten tracks, to be turned left sweep by north orientation east.11: ride on Bus No. 11 track, to be turned left sweep by east orientation south.12: ten No. two tracks, northwards to be turned left sweep by west.13-walkway 14-road traffic signal lamp
In Fig. 1 to Figure 16 and Figure of abstract, black heavy line is the track via two layers of bridge floor.Thin frame line is the outline line of two layers of bridge floor.The dotted line of choice refreshments composition is the outline line in ramp.Zebra stripes represent track not at two layers of bridge floor, represent that track is on ramp or on one deck ground.Zebra stripes and black heavy line junction are the intersections of ramp and bridge floor.Five parts are divided into describe the specific embodiment of the present invention in detail below:
Part I: one deck ground
One deck ground of overpass bridge arranges four turn right sweep and two direct lanes.Article four, sweep of turning right is: to be turned right sweep 5 by south east, to be turned right sweep 6 by north west, to be turned right sweep 7 by north east, to be turned right sweep 8 by west south.(Fig. 1, Fig. 2).
Fig. 1, Fig. 2 are that figure is moved towards in track, one deck ground.Two direct lanes arranged in Fig. 1 are: from south to north direct lane 1 and by north orientation south direct lane 2.Two direct lanes arranged in Fig. 2 are: direct lane 3 and from west to east direct lane 4 from east to west.
At Fig. 5, Fig. 6, Fig. 9, Figure 10, Figure 13, Figure 14, Figure 15, Tu16Zhong, two direct lanes on one deck ground, at two layers of bridge floor lower part, are blocked by two layers of bridge floor, do not draw.
Part II: two layers of bridge floor
Two layers of bridge floor of overpass bridge are the planes be formed by connecting by four turn left sweep and two other direct lanes.Fine line is two layers of bridge floor outline line, and two layers of bridge floor are cross shape massive plates.Article four, sweep of turning left is: to be turned left sweep 9 by south orientation west, to be turned left sweep 10 by north orientation east, to be turned left sweep 11 by east orientation south, northwards to be turned left sweep 12 by west.(Fig. 3, Fig. 4, Fig. 7, Fig. 8, Figure 11, Figure 12).
Fig. 3, Fig. 4, Fig. 7, Fig. 8, Figure 11, Figure 12 are that figure is moved towards in two layers of bridge floor track.In Fig. 3, Fig. 7, Figure 11, two other direct lane is: direct lane 3 and from west to east direct lane 4 from east to west.In Fig. 4, Fig. 8, Figure 12, two other direct lane is: from south to north direct lane 1 and by north orientation south direct lane 2.
The shape of layer bridge floor of two shown in Fig. 3, Fig. 4, Fig. 7, Fig. 8, Figure 11, Figure 12 is cross shape.
In figure 3, consistent by the turn left gug travel direction of gug and direct lane 3 from east to west of sweep 9, descending starting point, terminal of south orientation west, two down slope can be merged into a ramp.Consistent by the turn left gug travel direction of gug and direct lane 4 from west to east of sweep 10, descending starting point, terminal of north orientation east, two down slope can be merged into a ramp.
In the diagram, consistent by northwards the turn left gug travel direction of gug and direct lane 1 from south to north of sweep 12, descending starting point, terminal of west, two down slope can be merged into a ramp.Consistent with by the gug travel direction of the southern direct lane 2 of north orientation, descending starting point, terminal by the turn left gug of sweep 11 of east orientation south, two down slope can be merged into a ramp.
In the figure 7, up gradient and the up gradient travel direction of sweep 11 of being turned left by east orientation south of direct lane 3, upward slope starting point, terminal are consistent from east to west, and two steep uphill can be merged into a ramp.The up gradient travel direction of up gradient and the sweep 12 of northwards being turned left by west of direct lane 4, upward slope starting point, terminal are consistent from west to east, and two steep uphill can be merged into a ramp.
In fig. 8, up gradient and the up gradient travel direction of sweep 9 of being turned left by south orientation west of direct lane 1, upward slope starting point, terminal are consistent from south to north, and two steep uphill can be merged into a ramp.Consistent with by the up gradient travel direction of the southern direct lane 2 of north orientation, upward slope starting point, terminal by the turn left up gradient of sweep 10 of north orientation east, two steep uphill can be merged into a ramp.
In fig. 11, consistent by northwards the turn left up gradient travel direction of up gradient and direct lane 4 from west to east of sweep 12, upward slope starting point, terminal of west, two steep uphill can be merged into a ramp.Consistent by the turn left gug travel direction of gug and direct lane 4 from west to east of sweep 10, descending starting point, terminal of north orientation east, two down slope can be merged into a ramp.
In fig. 12, consistent with by the up gradient travel direction of the southern direct lane 2 of north orientation, upward slope starting point, terminal by the turn left up gradient of sweep 10 of north orientation east, two steep uphill can be merged into a ramp.Consistent with by the gug travel direction of the southern direct lane 2 of north orientation, descending starting point, terminal by the turn left gug of sweep 11 of east orientation south, two down slope can be merged into a ramp.
Part III: walkway
On one deck ground of overpass bridge, four walkwaies 13 are set, road traffic signal lamp 14 is set above the import department of direct lane direction to the car.Pedestrian, vehicle according to the display of road traffic signal lamp 14, can wait or pass through.Realize pedestrian and vehicle alternately current.Road traffic signal lamp 14 adopts two step endless form: pedestrian → vehicle → pedestrian → vehicle ...(Fig. 1, Fig. 2).
Part IV: the path of four sweeps of turning left
Four sweeps of turning left shown in Fig. 3 to Figure 14, every bar sweep of turning left has four to turn round, and wherein, turns left curved for three, turns right curved for one.Four are turned round, and three angles of turning round are very little, and just straight line is somewhat curved, only has a curved angle of turning round of turning left close to 90 degree.In figure 3, by the western track of south orientation 9 with by the path in track 10, north orientation east be: curved → bridge opening of keeping straight on → pass through → craspedodromes → upward slope → bis-layer bridge floor of turning left → turn left curved → curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of keeping straight on → turn right → curved → craspedodrome → descending of keeping straight on → turn left → one deck ground in the diagram, by track 12 and identical with above-mentioned path by the path in the southern track 11 of east orientation northwards, west.
In figure 3, by east orientation track 11, south with by the path in northwards track 12, west be: curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of turning left → curved → → bis-layers of bridge floor of keeping straight on → go up a slope of turning right → keep straight on → turn left curved → curved → craspedodromes → descending of keeping straight on → turn left → one deck ground in the diagram, by the eastern track 10 of north orientation and identical with above-mentioned path by the path in the western track of south orientation 9.
In the figure 7, by the western track of south orientation 9 with by the path in track 10, north orientation east be: → bis-layers of bridge floor that go up a slope → curved → curved → craspedodromes → descending of keeping straight on → turn left → one deck ground of keeping straight on → turn left → curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of turning right → keep straight on → turn left is curved → craspedodrome in fig. 8, by track 12 and identical with above-mentioned path by the path in the southern track 11 of east orientation northwards, west.
In the figure 7, by east orientation track 11, south with by the path in northwards track 12, west be: → bis-layers of bridge floor that go up a slope → curved → curved → curved → craspedodromes → descending of keeping straight on → turn left → one deck ground → bridge opening of keeping straight on → pass through of keeping straight on → turn right of keeping straight on → turn left → keep straight on → turn left curved → craspedodrome in fig. 8, by the western track of south orientation 9 and identical with above-mentioned path by the path in the eastern track 10 of north orientation.
In Figure 11 by the western track of south orientation 9 and Figure 12 by the path in northwards track 12, west being: curved → bridge opening of keeping straight on → pass through → craspedodrome → upward slope → bis-layer bridge floor → curved → craspedodrome → descending of turning left → one deck ground → curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of keeping straight on → turn right of keeping straight on → turn left → keep straight on → turn left is curved → keeps straight on
In Figure 11 by north orientation track 10, east and Figure 12 by the path in track 11, east orientation south be: curved → bridge opening of keeping straight on → pass through → craspedodrome → upward slope → bis-layer bridge floor of keeping straight on → turn left → curved → curved → curved → craspedodrome → descending of keeping straight on → turn left → one deck ground of keeping straight on → turn right of turning left
In Figure 11 by east orientation track 11, south and Figure 12 by the path in the western track of south orientation 9 be: curved → bridge opening of keeping straight on → pass through → bridge opening of keeping straight on → pass through of turning left → curved → → bis-layers of bridge floor → curved → curved → craspedodrome → descending of keeping straight on → turn left → one deck ground of keeping straight on → turn left of keeping straight on → go up a slope of keeping straight on → turn right
In Figure 11 by west northwards track 12 and Figure 12 by the path in track 10, north orientation east be: → bis-layers of bridge floor that go up a slope → curved → curved → curved → curved → craspedodrome → descending of keeping straight on → turn left → one deck ground → craspedodrome of keeping straight on → turn left of keeping straight on → turn right of keeping straight on → turn left
Four sweeps of turning left shown in Figure 15, every bar sweep of turning left has three to turn left curved, and three curved totals of turning left turn round 90 degree, due to the restriction of drawing, figure paints first turn round and the 3rd angle of turning round bigger than normal, second angle of turning round is less than normal.In fact, first is turned round very little with the 3rd angle of turning round, and just straight line is somewhat curved.Second is turned round close to 90 degree.
Four sweeps of turning left shown in Figure 16, every bar sweep of turning left has five to turn round, and wherein, turns left curved for three, turns right curved for two.Five are turned round, and only having one to turn left curved is 90 degree, all the other four angles of turning round of turning round are very little, and just straight line is somewhat curved.
Part V: about giving up the suggestion of overpass bridge bridge pier
In order to draw the bitter lesson of high speed riverhead, Jiangxi, Guangdong ring road fracture collapse accident, Harbin three ring efforts of everyone viaduct ring road capsizing case, 104 Shangyu, national highway Zhejiang light of spring overpass bridge cave-in accidents, Shanxi, Tianjin expressway ramp bridge cave-in accident, Henan Yi Chang bridge cave-in accident, the bridge pier of overpass bridge is given up in suggestion, the pontic under the part bridge floor of overpass bridge and ramp, make the body of wall with brick one-tenth into.Clay filling is used in body of wall inside.When pontic has track or a walkway below part bridge floor and ramp, leave bridge opening.Highly not too high solid wall is solid not easily to collapse, and cost will lower than bridge pier pontic.

Claims (5)

1. a crossroad double-layer structure overpass bridge, is characterized in that: described overpass bridge has one deck ground and two layers of bridge floor, is double-layer structure overpass bridge.
2. crossroad according to claim 1 double-layer structure overpass bridge, it is characterized in that: overpass bridge has 12 tracks, one deck ground arranges four turn right sweep and two direct lanes, and two layers of bridge floor arrange four turn left sweep and two other direct lanes.
3. crossroad according to claim 1 double-layer structure overpass bridge, is characterized in that: four sweeps of turning left shown in Figure 15, and every bar sweep of turning left has three to turn left curved, and three curved totals of turning left turn round 90 degree; Four sweeps of turning left shown in Fig. 3 to Figure 14, every bar sweep of turning left has four to turn round, and wherein, turns left curved for three, turns right curved for one; Four are turned round, and three angles of turning round are very little, and just straight line is somewhat curved, only has a curved angle of turning round of turning left close to 90 degree; Four sweeps of turning left shown in Figure 16, every bar sweep of turning left has five to turn round, and wherein, turns left curved for three, turns right curved for two; Five are turned round, and only having one to turn left curved is 90 degree, all the other four angles of turning round of turning round are very little, and just straight line is somewhat curved.
4. crossroad according to claim 1 double-layer structure overpass bridge, is characterized in that: the shape of layer bridge floor of two shown in Fig. 3, Fig. 4, Fig. 7, Fig. 8, Figure 11, Figure 12 is cross shape.
5. crossroad according to claim 1 double-layer structure overpass bridge, is characterized in that: arrange four walkwaies on one deck ground of overpass bridge; And road traffic signal lamp is set above direct lane sends a car import department; Pedestrians, car, according to the display of road traffic signal lamp, wait or pass through.
CN201510703323.1A 2015-10-23 2015-10-23 Double-layer-structure overpass at crossroad Pending CN105256680A (en)

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CN107761494A (en) * 2017-09-28 2018-03-06 李益安 Two layers of crossroad viaduct
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CN107761494A (en) * 2017-09-28 2018-03-06 李益安 Two layers of crossroad viaduct
CN113897826A (en) * 2021-05-07 2022-01-07 高国鑫 Two-layer crossroad smooth overpass

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