CN203846385U - Road-rail bridge with multiple layers of bridge decks - Google Patents
Road-rail bridge with multiple layers of bridge decks Download PDFInfo
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- CN203846385U CN203846385U CN201420204341.6U CN201420204341U CN203846385U CN 203846385 U CN203846385 U CN 203846385U CN 201420204341 U CN201420204341 U CN 201420204341U CN 203846385 U CN203846385 U CN 203846385U
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Abstract
The utility model discloses a road-rail bridge with multiple layers of bridge decks. The road-rail bridge comprises steel truss beams, a rail layer and a road layer, wherein the rail layer and the road layer are supported by the steel truss beams and longitudinally parallelly disposed along the steel truss beam, and the rail layer is disposed above the road layer. Due to the fact that the rail layer is disposed above the road layer, the rail layer is unlimited by structural space height, and structural layer space can be fully utilized while total height of the truss is not increased. By the multi-layered truss, direct structure force transmission and high structure efficiency are achieved. The multi-layered truss is better in terrain adaptability as compared with an original truss when the multi-layered truss is applied to mountainous city bridges, and total project construction cost is lowered.
Description
Technical field
The utility model relates to a kind of bridge, particularly a kind of multilayer deck rail-cum-road bridge beam.
Background technology
Track traffic is the important component part of urban public transport, conventionally adopts bridge mode to cross over rivers, mountain valley.For saving investment, in the time that span of bridge is greater than 300m, conventionally adopt the form of building jointly with urban road system, to make full use of bridge location resource.Conventional arrangement form is that urban road is arranged with layer with track, or urban road with more than track, lower leaf layout, urban road is on upper strata, track is in lower floor;
When upper and lower layered arrangement, because the width of roadway of urban road is often greater than track width, girder often adopts inverted trapezoidal cross section, and the power transmission of the type cross section is not direct, and structure stress efficiency is low; Meanwhile, be subject to the impact of track Clearance requirement, inverted trapezoidal lower floor bridge floor design requirement spatial altitude is often larger, and space availability ratio is low, causes waste of material.
Therefore need a kind of novel rail-cum-road bridge beam, can effectively improve bridge construction and be subject to force efficiency, effectively utilize the space of deck, and then reduce Engineering Overall cost.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of multilayer deck rail-cum-road bridge beam, can effectively improve bridge construction efficiency, effectively utilizes structure space.
Multilayer deck rail-cum-road bridge beam of the present utility model, the rail layer and the track layer that comprise Steel Truss Beam and support and arrange along Steel Truss Beam parallel longitudinal by Steel Truss Beam, described rail layer is positioned at layer top, track;
Further, described Steel Truss Beam is parallel main truss structure, and described bridge is cross-section is rectangular configuration;
Further, described rail layer and track layer comprise respectively steel cross bridge floor board and crossbeam, on described rail layer bridge deck, are provided with the track for track traffic;
Further, between the bridge deck of described rail layer and its crossbeam, be vertically arranged with longeron and the Research on Open Stiffener for strengthening track bridge floor, between the bridge deck of described track layer and its crossbeam, be vertically arranged with the stiffening rib of remaining silent;
Further, described track layer is the two-layer up and down of parallel longitudinal setting, and described girder is double-deck main truss structure;
Further, described upper and lower two-layer track is one-way trip road;
Further, the current direction rightabout each other in described upper and lower two-layer track;
Further, described Research on Open Stiffener is plain plate, described in the stiffening rib of remaining silent be U-shaped rib.
The beneficial effects of the utility model: multilayer deck rail-cum-road bridge beam of the present utility model, adopt rectangular multilayer truss form, structure power transmission is direct, and structure efficiency is high; The superiors by orbital arrangement at bridge, can make rail layer not be subject to structure space height restriction; Roadway is arranged in rail layer below, can, not increasing under truss overall height, effectively utilize deck space; Meanwhile, if multilayer truss form applies to Mountainous City bridge, can bring and compare the better landform adaptive capacity of original truss form; And then reduction Engineering Overall cost.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further described
Fig. 1 is cross-section of bridge structural representation of the present utility model.
Detailed description of the invention
Fig. 1 is cross-section of bridge structural representation of the present utility model, as shown in the figure: multilayer deck rail-cum-road bridge beam of the present utility model, the rail layer 2 and the track layer 3 that comprise Steel Truss Beam 1 and supported and arranged along Steel Truss Beam parallel longitudinal by Steel Truss Beam 1, described rail layer 2 is positioned at track layer 3 top.In the present embodiment, described Steel Truss Beam 1 is parallel main truss structure, and described cross-section of bridge is rectangular configuration; Space availability ratio is high, and structure is more firm, is subject to force efficiency higher, and stability is higher.
In the present embodiment, described rail layer 2 and track layer 3 comprise respectively steel cross bridge floor board and crossbeam (8,81,82); From heavy and light, the part participation that can be used as girder is jointly stressed, and ultimate bearing capacity is large, can alleviate significantly deadweight, increases span; On described rail layer bridge deck, be provided with the track 4 for track traffic; Because the width of rail layer bridge floor is consistent with the width of track layer bridge floor, therefore track can make full use of the space on upper strata, can according to bridge deck width with and load force many tracks are set, increased the utilization rate of structure.
In the present embodiment, between the bridge deck 2 of described rail layer and its crossbeam 8, be vertically arranged with longeron 7 and the Research on Open Stiffener for strengthening track bridge floor, longeron 7 can be arranged according to the quantity of track 4, a general track arranges two longerons 7 for 4 times and strengthens, between the bridge deck of track layer and its crossbeam (81,82), be vertically arranged with the stiffening rib 6 of remaining silent; In the present embodiment, described track layer 3 for parallel longitudinal arrange two-layer up and down, described in set a roof beam in place as double-deck main truss structure; Bridge floor arrange be vertically divided into three layers, track is upper strata, track be in, lower two-layer; The superiors by orbital arrangement at bridge, can make rail layer not be subject to structure space height restriction; Roadway is arranged in rail layer below, can, not increasing under truss overall height, effectively utilize deck space; Double-deck main truss structure is the two-layer main couple arranging along same plane, this bilayer main truss structure comprise the upper chord 11 that is connected with track cross beam 8 and with track lower and upper cross-member (81,82) the middle chord member 12 and the lower chord 13 that connect respectively, between chord member, pass through web member (14,15) be cross-linked to form the node being positioned on chord member, this structure is prior art, therefore repeats no more its detailed mounting structure herein.
In the present embodiment, described upper and lower two-layer track is one-way trip road; Garage's traffic organization is arranged in separately one deck bridge floor according to the current direction of traffic, and the current risk of having avoided the two-way traffic of same layer bridge floor to bring, improves bridge floor traffic efficiency.
In the present embodiment, the current direction rightabout each other in described upper and lower two-layer track; Improve bridge floor traffic efficiency, meet the current demand of traffic.
In the present embodiment, described Research on Open Stiffener 7 is plain plate; Also can be inclined to one side bulb steel plate, bulb steel plate, L-type rib, inverted T shape rib etc., the described stiffening rib 6 of remaining silent, for U-shaped rib, can be also flute profile rib, V-arrangement rib and Y shape rib etc., but is subject to the impact of track layer bridge deck thickness, be preferably U-shaped rib, this structure more can adapt to the thickness of bridge deck.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (8)
1. a multilayer deck rail-cum-road bridge beam, it is characterized in that: the rail layer (2) and the track layer (3) that comprise Steel Truss Beam (1) and supported and arranged along Steel Truss Beam parallel longitudinal by Steel Truss Beam (1), described rail layer (2) is positioned at track layer (3) top.
2. multilayer deck rail-cum-road bridge beam according to claim 1, is characterized in that: described Steel Truss Beam (1) is parallel main truss structure, and described bridge is cross-section is rectangular configuration.
3. multilayer deck rail-cum-road bridge beam according to claim 2, it is characterized in that: described rail layer (2) and track layer (3) comprise respectively steel cross bridge floor board and crossbeam, on described rail layer bridge deck, be provided with the track (4) for track traffic.
4. multilayer deck rail-cum-road bridge beam according to claim 3, it is characterized in that: between the bridge deck of described rail layer (2) and its crossbeam, be longitudinally provided for strengthening longeron (7) and the Research on Open Stiffener (5) of track bridge floor, between the bridge deck of described track layer and its crossbeam, be vertically arranged with the stiffening rib of remaining silent (6).
5. multilayer deck rail-cum-road bridge beam according to claim 4, is characterized in that: described track layer (3) is two-layer up and down for parallel longitudinal setting, and described Steel Truss Beam is double-deck main truss structure.
6. multilayer deck rail-cum-road bridge beam according to claim 5, is characterized in that: described upper and lower two-layer track is one-way trip road.
7. multilayer deck rail-cum-road bridge beam according to claim 6, is characterized in that: the current direction rightabout each other in described upper and lower two-layer track.
8. multilayer deck rail-cum-road bridge beam according to claim 7, is characterized in that: described Research on Open Stiffener (5) is plain plate, described in the stiffening rib (6) of remaining silent be U-shaped rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204341.6U CN203846385U (en) | 2014-04-24 | 2014-04-24 | Road-rail bridge with multiple layers of bridge decks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420204341.6U CN203846385U (en) | 2014-04-24 | 2014-04-24 | Road-rail bridge with multiple layers of bridge decks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203846385U true CN203846385U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420204341.6U Expired - Fee Related CN203846385U (en) | 2014-04-24 | 2014-04-24 | Road-rail bridge with multiple layers of bridge decks |
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| Country | Link |
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| CN (1) | CN203846385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924502A (en) * | 2014-04-24 | 2014-07-16 | 林同棪国际工程咨询（中国）有限公司 | Multi-layer bridge face highway-light railway dual-purpose bridge |
| CN105002817A (en) * | 2015-08-04 | 2015-10-28 | 中铁第四勘察设计院集团有限公司 | Prestressed concrete double-deck box girder bridge |
-
2014
- 2014-04-24 CN CN201420204341.6U patent/CN203846385U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924502A (en) * | 2014-04-24 | 2014-07-16 | 林同棪国际工程咨询（中国）有限公司 | Multi-layer bridge face highway-light railway dual-purpose bridge |
| CN103924502B (en) * | 2014-04-24 | 2016-08-31 | 林同棪国际工程咨询（中国）有限公司 | Multilayer deck rail-cum-road bridge beam |
| CN105002817A (en) * | 2015-08-04 | 2015-10-28 | 中铁第四勘察设计院集团有限公司 | Prestressed concrete double-deck box girder bridge |
| CN105002817B (en) * | 2015-08-04 | 2017-05-10 | 中铁第四勘察设计院集团有限公司 | Prestressed concrete double-deck box girder bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20200424 |