CN102877406B - The double-deck city overhead road of the continuous Beam of rigid frame - Google Patents
The double-deck city overhead road of the continuous Beam of rigid frame Download PDFInfo
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- CN102877406B CN102877406B CN201210368881.3A CN201210368881A CN102877406B CN 102877406 B CN102877406 B CN 102877406B CN 201210368881 A CN201210368881 A CN 201210368881A CN 102877406 B CN102877406 B CN 102877406B
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- 238000010276 construction Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000005266 casting Methods 0.000 claims 1
- 230000008602 contraction Effects 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Abstract
The invention discloses the double-deck city overhead road of the continuous Beam of a kind of rigid frame, its body of a bridge adopts the continuous Beam structure of shaped as frame, overlying roaduay and middle level road are the below upper of shaped as frame, both sides between overlying roaduay and middle level road are formed trussed construction with some braces, roadside post and continuous Beam form rigid-framed structure, the large carrying of its upper dimension can be high, and lower dimension is little to be dropped on roadside flower bed, does not account for the area of road of ground surface.The present invention due to rigid frame pillar and the body of a bridge be rigidly connected, floor measurements is less, the flower bed of road side can be dropped on 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, bearing capacity high security might as well, because bilayer, the body of a bridge forms shaped as frame, body of a bridge section factor is comparatively large, and 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, can make full use of existing path space, solve the traffic blocking problem that day by day increases, and structure simple, be easy to realize.
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 urban architecture field of engineering technology.
Background technology
Along with expanding economy, urban traffic occurs crowded, blocks up more and more serious.Current solution: one is that Urban Underground builds subway, but subway can only dredge crowd in fixed line, and can not dredge logistics and wagon flow, so many subways have been repaiied in direction in length and breadth in some cities, result still blocks up.Two is build viaduct on 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, 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, minimum two tracks that account for, the bridge pier ground of this structure, bridge floor is wide also can only be wide three times of bridge pier, , the road in two-way 8 tracks, central authorities' bridge pier accounts for two tracks, the body of a bridge that height is set up also is 6 tracks, totally 12 tracks under bridge on bridge, also increase and only have 50% track.The handling capacity that increases is tangible very little, is not inconsistent with urban development ratio.Along with the development in city, the increase of wagon flow, the overhead road bridge of prior art all also can block up under bridge, and this design scheme is used on the road in 4 tracks, and bridge pier accounts for the half of road, has lost and has implemented meaning.Traffic congestion problem becomes a difficult problem.Three be have employed restriction vehicle fleet size increase, to vehicle limit purchase, limit nonlocal vehicle enter the market and odd or even number divide the measures such as date of driving.Namely can become effective, hardly realize that direct restricting vehicle domestic demand is restricted national economic development by this measure, bring much inconvenience and difficulty to the people.Present situation is that the area upper part on original ground in city successively builds highrise building gradually, the area of movable increased population and road is amassed or original area did not become at similarly surface, this high-rise building area and the out-of-proportion unscientific lopsided development of traffic areas, the blocking of road has been inevitable result.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of double-decker three layers of road surface, 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, continuously 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 below upper of shaped as frame, both sides between overlying roaduay and middle level road are formed trussed construction with some braces, and roadside post and continuous Beam form rigid-framed structure, and the large carrying of its upper dimension can be high, lower dimension is little to be dropped on 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 end of the bridge underground.
The present invention proposes following technical scheme of dealing with problems 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 below upper of shaped as frame, and both sides adopt trussed construction, continuous Beam is higher than single span freely-supported Beam supporting capacity, continuous Beam is static indeterminacy Beam, and be namely that separate members goes wrong also unlikely caving in, therefore 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 is closely less, increases through space, and can ground origin of force be put on the flower bed beyond motorway road side, 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 pawl just as whole, stretches to the flower bed in roadside on the body of a bridge in road overhead.Namely be that wherein the accidents happened to of certain pawl does not show formation disaster, so very safe yet.Adopt double-decker, make rigid frame have upper strata to support, the stress of node is improved greatly, and tenability is higher.Owing to adopting above design scheme, the double-deck city overhead road of the continuous Beam of rigid frame of the present invention, can make the handling capacity of road improve twice than with original handling capacity, prop up the viaduct raising handling capacity of Beam bridge pier support than existing technology list four times.Due to pillar do not account for 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, thus 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 rigidly connected, floor measurements is less, the flower bed of road side can be dropped on 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, bearing capacity high security might as well because bilayer, the body of a bridge formed 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, increase ratio with urban architecture area substantially to conform to, city traffic congestion problem can be solved at all.Existing path space can be made full use of, solve the traffic blocking problem that day by day increases, and structure simple, be easy to realize.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
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;
In figure, 1 overlying roaduay, 2 roadside posts, 3 middle level roads, 4 braces, 5 road of ground surface, 6 flower beds, 7 intermediolateral columns, 8 end of the bridge piers 9 are Beam continuously.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, 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, continuously 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 below upper of shaped as frame, both sides between overlying roaduay 1 and middle level road 3 are formed trussed construction with some braces 4, and roadside post 2 and continuous Beam 9 form rigid-framed structure, and the large carrying of its upper dimension can be high, lower dimension is little to be dropped on 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 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 between upper road surface 1 and middle road surface 3, both sides adopt brace 4 to form, the continuous Beam 9 of square cross-section, and the both sides of continuous Beam 9 are designed with roadside post 2 and form rigid-framed structure.The wide road in road surface has isolated gate in the middle of road, and in isolated gate, add intermediolateral column 7 form two unidirectional tracks, continuous Beam 9 is multispan continuous print, and according to the continuous Beam 9 of the mechanics of materials and the form at ground fulcrum thereof, load and thermal stress design the size in its body of a bridge cross section.Whole continuous Beam is elastic body, cold and hotly will be out of shape, but end of the bridge pier limits the distortion of the body of a bridge, and the body of a bridge just produces stress, supposes that the position of end of the bridge pier is changeless, then the cold and hot stress of the body of a bridge is by following formula:
Design roadside, the both sides post 2 of continuous Beam 9 in square-section, roadside post 2 and road surface 3 in upper road surface 1 link rigid-framed structure, its point of contact presses rigid frame Theoretical Design, ensure enough intensity, roadside post 2 adopts reduced size with the link of flower bed 6, thus ensures that the original handling capacity of road of ground surface 5 is 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 (1)
1. the double-deck city overhead road of the continuous Beam 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, what overlying roaduay (1) and middle level road (3) were shaped as frame is below upper, both sides between overlying roaduay (1) and middle level road (3) are formed trussed construction with some braces (4), roadside post (2) and continuous Beam (9) organize all-in-one-piece rigid-framed structure, a component with continuous Beam (9), the large carrying of its upper dimension can be high, lower dimension is little to be dropped on roadside flower bed (6), do not account for the area of road of ground surface (5), the continuous Beam of this shaped as frame rigid frame (9) is multispan one, without cold and hot expansion or contraction joints, whole continuous Beam is an elastic body, cold and hotly to be out of shape, the end of the bridge pier (8) simultaneously with arch bridge and cable bridge performance limits the distortion of the body of a bridge, described end of the bridge pier (8) is the buried design of rectangle, imbed end of the bridge underground deeply, body of a bridge material is firm, its yield limit
be greater than 36kg/mm
2fine Steel Casting iron, roadside post (2) and continuous Beam (9) are the firm Beam that unitary rigid connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210368881.3A CN102877406B (en) | 2012-09-27 | 2012-09-27 | The double-deck city overhead road of the continuous Beam of rigid frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
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| CN102877406A CN102877406A (en) | 2013-01-16 |
| CN102877406B true CN102877406B (en) | 2015-07-29 |
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| CN201210368881.3A Active 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN102877406A (en) | 2013-01-16 |
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