CN102877406A - Rigid-framed urban double-deck elevated road with continuous beams - Google Patents
Rigid-framed urban double-deck elevated road with continuous beams Download PDFInfo
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- CN102877406A CN102877406A CN2012103688813A CN201210368881A CN102877406A CN 102877406 A CN102877406 A CN 102877406A CN 2012103688813 A CN2012103688813 A CN 2012103688813A CN 201210368881 A CN201210368881 A CN 201210368881A CN 102877406 A CN102877406 A CN 102877406A
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Abstract
The invention discloses a rigid-framed urban double-deck elevated road with continuous beams. A bridge of the rigid-framed urban double-deck elevated road with continuous beams is in a framed continuous beam structure. An upper road tier and a lower road tier are framed. Two sides of structure between the upper road tier and the lower road tier are in truss structures composed of a plurality of diagonals. Roadside pillars and the continuous beams form a rigid frame structure. The upper portion of the rigid frame structure is large in size and high in bearing capacity, and the lower portion of the rigid frame structure is small in size and is rested on roadside flower beds, and no pavement area is occupied. The rigid frame pillars are connected with the bridge rigidly, and the ground part of the elevated road is small in size and can be rested on the roadside flower beds without occupying the original pavement lanes. Owing to the continuous beams, the bridge with multi-support statically indeterminate beams is high in bearing capacity and safety. The double-deck bridge forms the frame, section modulus of the bridge is large, and rigid frame nodes are high in bearing capacity. The double-deck bridge is provided with double decks, one additional pavement is provided, and accordingly trafficability is tripled by that of the original pavement. Space of the existing roads can be utilized fully, and the problem of increasing traffic jam is solved. The rigid-framed urban double-deck elevated road with continuous beams is simple in structure and easy to implement.
Description
Technical field
The present invention relates to the double-deck city overhead road of the continuous Beam of a kind of rigid frame, belong to the urban architecture field of engineering technology.
Background technology
Along with expanding economy, urban traffic occurs crowded, and it is more and more serious to block up.Present solution: the one, Urban Underground is built subway, but subway can only be on fixed line the dredging crowd, and can not dredge logistics and wagon flow, thus the city that has in length and breadth direction repaiied many subways, the result still blocks up.The 2nd, build the viaduct at original road of ground surface, in the hope of increasing the handling capacity of road, but the design scheme of prior art viaduct is: the structure of single span freely-supported Beam square butt joint central authorities bridge pier support, the bridge pier lateral dimension can not be too little, and body of a bridge lateral dimension can not be too wide, otherwise can not stablize, the bridge pier ground minimum of this structure two tracks that account for, bridge floor is wide also can only to be wide three times of bridge pier,, the road in two-way 8 tracks, central bridge pier accounts for two tracks, and the body of a bridge that height is set up also is 6 tracks, totally 12 tracks under the bridge on the bridge also increase and only have 50% track.The handling capacity that increases is not inconsistent with the urban development ratio really very little.Along with the development in city, the increase of wagon flow all also can be blocked up under the bridge on the overhead road bridge of prior art, and this design scheme is used on the road in 4 tracks, and account for half of road of bridge pier lost and implemented meaning.The traffic congestion problem becomes a difficult problem.The 3rd, adopted the restriction vehicle fleet size to increase, the vehicle limit is purchased, limit nonlocal vehicle to enter the market and divide the measures such as the date of driving with odd or even number.Can namely become effective, hardly realize this measure with direct restricting vehicle domestic demand and restrict national economic development, bring many inconvenience and difficulty to the people.Present situation is that part is successively built highrise building gradually on the area on original ground in the city, movable increased population surface similarly is long-pending and area or the original area of road did not become, the out-of-proportion unscientific lopsided development of this high-rise building area and traffic areas, the obstruction of the road result that has been inevitable.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides three layers of road surface of a kind of double-decker, the double-deck city overhead road of the continuous Beam of rigid frame that road passage capability is high.
The present invention is achieved through the following technical solutions:
The double-deck city overhead road of the continuous Beam of a kind of rigid frame, comprise the body of a bridge, continuous Beam, roadside post and end of the bridge pier, it is characterized in that: the body of a bridge adopts the continuous Beam structure of shaped as frame, overlying roaduay and middle level road are the upper bottom of shaped as frame, both sides between overlying roaduay and the middle level road consist of trussed construction with some braces, and the roadside post forms rigid-framed structure with continuous Beam, and the large carrying of its upper dimension can be high, lower dimension is little to be dropped on the roadside flower bed, does not account for the area of road of ground surface.
Described end of the bridge pier is the buried design of rectangle, imbeds the end of the bridge underground.
The technical scheme that the present invention deals with problems below proposing according to above-mentioned existence traffic congestion problem:
1, the body of a bridge adopts the continuous Beam structure of shaped as frame, and upper road surface and middle road surface are the upper bottoms of shaped as frame, and trussed construction is adopted in both sides, Beam is higher than single span freely-supported Beam supporting capacity continuously, continuously Beam is static indeterminacy Beam, namely be individual components also unlikely the caving in that go wrong, so safety is good.
3, pillar adopts rigid-framed structure, rigid frame formula pillar is that the body of a bridge links together, and its portion size closely is less, increases to pass through the space, and can be put into the ground origin of force on the motorway road side flower bed in addition, do not account for the area of original motorway.
The double-deck city overhead road of the continuous Beam of rigid frame grows a lot of pawls just as whole on the body of a bridge in the road sky, stretch to the flower bed in roadside.Namely be that wherein the formation disaster is not shown in certain pawl accidents happened to yet, so very safe.Adopt double-decker, so that rigid frame has the upper strata to support, the stress of node is improved greatly, and tenability is higher.Owing to adopt above design scheme, the double-deck city overhead road of the continuous Beam of rigid frame of the present invention, the handling capacity that can make road than and original handling capacity improve twice, improve handling capacity than the viaduct of single Beam bridge pier of existing technology support four times.Because pillar does not account for the track, the area that lands is little, the double-deck city overhead road of the continuous Beam of rigid frame of the present invention is also implemented at the road in 4 tracks, thereby has more generality.
Compared with prior art, the invention has the beneficial effects as follows: because rigid frame pillar and the body of a bridge are to be rigidly connected, the ground size is less, can drop on the flower bed of road side and do not account for the track of original road of ground surface, because be continuous Beam, the body of a bridge is branched some statically indeterminate beam, the bearing capacity high security might as well because double-deck, the body of a bridge forms shaped as frame, body of a bridge section factor is larger, rigid frame node supporting capacity is also large, because double-deck, many one decks road surface, handling capacity is three times of original road surface, substantially conform to urban architecture area change ratio, can solve city traffic congestion problem at all.Can take full advantage of existing path space, solve the traffic blocking problem that day by day increases, and simple in structure, be easy to realize.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing.
Accompanying drawing 1 is the schematic diagram of the double-deck city overhead road of the continuous Beam of rigid frame of the present invention;
Accompanying drawing 2 is eight track schematic cross-sections of the double-deck city overhead road of the continuous Beam of rigid frame of the present invention;
Accompanying drawing 3 is the Four-Lane Road schematic cross-section of the double-deck city overhead road of the continuous Beam of rigid frame of the present invention;
Among the figure, 1 overlying roaduay, 2 roadside posts, 3 middle level road, 4 braces, 5 road of ground surface, 6 flower beds, 7 intermediolateral columns, 8 end of the bridge piers, 9 continuous Beam.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present invention will be further described.Accompanying drawing is specific embodiments of the invention.This embodiment is the double-deck city overhead road of the continuous Beam of a kind of rigid frame, comprise the body of a bridge, continuous Beam 9, roadside post 2 and end of the bridge pier 8, it is characterized in that: the body of a bridge adopts the continuous Beam structure of shaped as frame, overlying roaduay 1 and middle level road 3 are the upper bottom of shaped as frame, both sides between overlying roaduay 1 and the middle level road 3 consist of trussed construction with some braces 4, and roadside post 2 forms rigid-framed structures with continuous Beam 9, and the large carrying of its upper dimension can be high, lower dimension is little to be dropped on the roadside flower bed 6, does not account for the area of road of ground surface 5.Described end of the bridge pier 8 is the buried design of rectangle, imbeds the end of the bridge underground.
Fig. 1 is the schematic diagram of the double-deck city overhead road of the continuous Beam of rigid frame of the present invention, and both sides adopt brace 4 to form between upper road surface 1 and middle road surface 3, the continuous Beam 9 of square cross-section, and the both sides of Beam 9 are designed with roadside post 2 and form rigid-framed structure continuously.The wide road in road surface has isolated gate in the middle of the road, add intermediolateral column 7 and form two unidirectional tracks in isolated gate, and Beam 9 is that multispan is continuous continuously, and according to the continuous Beam 9 of the mechanics of materials and in the form of ground fulcrum, load and thermal stress design the size in its body of a bridge cross section.Whole continuous Beam is elastic body, cold and hot will the distortion, but the end of the bridge pier has limited the distortion of the body of a bridge, and the body of a bridge just produces stress, and the position of supposing the end of the bridge pier is changeless, and then the cold and hot stress of the body of a bridge is by following formula:
The both sides of the continuous Beam 9 design roadside post 2 in the square-section, road surface 3 rigid-framed structure that links in roadside post 2 and the upper road surface 1, its point of contact is pressed the rigid frame Theoretical Design, ensure enough intensity, roadside post 2 adopts reduced size with the binding of flower bed 6, thereby guarantees that road of ground surface 5 original handling capacities are constant.The double-deck city overhead road of the continuous Beam of rigid frame of the present invention is not blocking up after the major trunk roads of original traffic congestion are implemented.
Claims (2)
1. the double-deck city overhead road of the continuous Beam of a rigid frame, comprise the body of a bridge, continuous Beam (9), roadside post (2) and end of the bridge pier (8), it is characterized in that: the body of a bridge adopts the continuous Beam structure of shaped as frame, overlying roaduay (1) and middle level road (3) are the upper bottom of shaped as frame, both sides between overlying roaduay (1) and middle level road (3) consist of trussed construction with some braces (4), roadside post (2) forms rigid-framed structure with continuous Beam (9), the large carrying of its upper dimension can be high, lower dimension is little to be dropped on the roadside flower bed (6), does not account for the area of road of ground surface (5).
2. the double-deck city overhead road of the continuous Beam of rigid frame according to claim 1, it is characterized in that: described end of the bridge pier (8) is the buried design of rectangle, imbeds the end of the bridge underground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210368881.3A CN102877406B (en) | 2012-09-27 | 2012-09-27 | The double-deck city overhead road of the continuous Beam of rigid frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210368881.3A CN102877406B (en) | 2012-09-27 | 2012-09-27 | The double-deck city overhead road of the continuous Beam of rigid frame |
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| CN102877406A true CN102877406A (en) | 2013-01-16 |
| CN102877406B CN102877406B (en) | 2015-07-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166378A (en) * | 2018-02-06 | 2018-06-15 | 广州智网联运物流有限公司 | A kind of novel low latitude logistics transportation runway |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11264103A (en) * | 1998-03-17 | 1999-09-28 | Ohbayashi Corp | Elevation method of existing transportation bedrock |
| CN2832895Y (en) * | 2005-08-24 | 2006-11-01 | 邸忠林 | Multi-deck easily-dismountable full-stereo road traffic system |
| JP2008075449A (en) * | 2007-12-13 | 2008-04-03 | Tokyu Construction Co Ltd | Rigid-frame viaduct construction method |
| CN101158143A (en) * | 2007-11-23 | 2008-04-09 | 清华大学 | Double-deck bridge floor combined trussed girder bridge |
| CN101831865A (en) * | 2009-03-10 | 2010-09-15 | 马兴华 | Beam spanning multilayer deck |
| JP2011220100A (en) * | 2010-03-24 | 2011-11-04 | Toda Constr Co Ltd | Solid viaduct structure and construction method of the same |
| CN102367643A (en) * | 2011-02-25 | 2012-03-07 | 吴长峰 | Main structure of steel structure viaduct with stayed suspension cables |
| CN203128993U (en) * | 2012-09-27 | 2013-08-14 | 岑益南 | Rigid-framed continuous beam double-deck urban elevated road |
-
2012
- 2012-09-27 CN CN201210368881.3A patent/CN102877406B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11264103A (en) * | 1998-03-17 | 1999-09-28 | Ohbayashi Corp | Elevation method of existing transportation bedrock |
| CN2832895Y (en) * | 2005-08-24 | 2006-11-01 | 邸忠林 | Multi-deck easily-dismountable full-stereo road traffic system |
| CN101158143A (en) * | 2007-11-23 | 2008-04-09 | 清华大学 | Double-deck bridge floor combined trussed girder bridge |
| JP2008075449A (en) * | 2007-12-13 | 2008-04-03 | Tokyu Construction Co Ltd | Rigid-frame viaduct construction method |
| CN101831865A (en) * | 2009-03-10 | 2010-09-15 | 马兴华 | Beam spanning multilayer deck |
| JP2011220100A (en) * | 2010-03-24 | 2011-11-04 | Toda Constr Co Ltd | Solid viaduct structure and construction method of the same |
| CN102367643A (en) * | 2011-02-25 | 2012-03-07 | 吴长峰 | Main structure of steel structure viaduct with stayed suspension cables |
| CN203128993U (en) * | 2012-09-27 | 2013-08-14 | 岑益南 | Rigid-framed continuous beam double-deck urban elevated road |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108166378A (en) * | 2018-02-06 | 2018-06-15 | 广州智网联运物流有限公司 | A kind of novel low latitude logistics transportation runway |
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| CN102877406B (en) | 2015-07-29 |
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