CN103882802B - A kind of bridge safeguard structure of highway crossing railway - Google Patents
A kind of bridge safeguard structure of highway crossing railway Download PDFInfo
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- CN103882802B CN103882802B CN201410111017.4A CN201410111017A CN103882802B CN 103882802 B CN103882802 B CN 103882802B CN 201410111017 A CN201410111017 A CN 201410111017A CN 103882802 B CN103882802 B CN 103882802B
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Abstract
The invention discloses a kind of bridge safeguard structure of highway crossing railway, comprise the lower cover be positioned between two width bridge median strip place girders and the upper cover plate be positioned between two width bridge median strip place bridge floor guardrail bases, lower cover comprises lower cover steel plate and is welded in the stiffening rib bottom lower cover steel plate, and upper cover plate comprises upper cover plate steel plate and is connected to the armored concrete slab on upper cover plate steel plate by shear connector; All rubber tile is pasted with between lower cover steel plate and girder, between upper cover plate steel plate and guardrail base.The present invention is arranged between two width bridges, guarantee median strip that can be safe and reliable is closed, junk is avoided to enter railway clearance, fall after preventing vehicle from crossing guardrail and affect railway and normally run, make up the deficiency of traditional defense structure, improve science and the degree of reliability of safety prevention measure.
Description
Technical field
The invention belongs to the technical field of civil engineering bridge design, specifically, relate to a kind of bridge safeguard structure of highway crossing railway.
Background technology
In the bridge security safeguard structure of highway crossing railway, using more is that anti-throwing net adds level and to take precautions against natural calamities the form of net, can prevent the pendant thing being greater than mesh size from dropping under both actings in conjunction, at highroad Midspan sag, especially cross in the bridge of high-speed railway and be widely used.
Highway bridge is divided into single width bridge and double width bridge two kinds of forms, mostly adopts double width bridge form, adopt median strip to separate between two width bridges when bridge floor is wider.Traditional anti-throwing net add level take precautions against natural calamities net protection form there are certain strength and stiffness, can prevent from generally falling dropping of thing, to cross over railway operation play safely certain protective action.But, adopt this safeguard procedures can have a strong impact on the driving visual field of highway bridge vehicle at the highway bridge median strip place of two width bridges, and cannot effectively prevent from vehicle from crossing guardrail crashing into railroad clearance and work the mischief.In addition, level arranging of net of taking precautions against natural calamities needs certain space, and the take precautions against natural calamities mesh of net of anti-throwing net and level cannot prevent the tiny pendant thing being less than mesh size from dropping.Therefore, in the position, median strip of highway crossing railroad bridge, because space and execution conditions are all restricted, more effective safeguard procedures must be adopted, to ensure the safety of railway operation under construction and run duration bridge on bridge.
In recent years, China increases the input to infrastructure construction, and the projects such as increasing high-speed railway, speedway, standard highway have listed construction plan in, generally will inevitably occur the situation of highway bridge Midspan sag line position thus.Because the importance of railway operation and security requirement are not of the common run, highway overcrossing railway bridge must take necessity, rationally, effective safety and Protection, guarantee the security of operation of railway.
Summary of the invention
The present invention is to solve the position, median strip of existing highway Midspan sag bridge lacks the technical problem of effective safeguard procedures, provide a kind of bridge safeguard structure of highway crossing railway, it is arranged between two width bridges, guarantee median strip that can be safe and reliable is closed, junk is avoided to enter railway clearance, fall after preventing vehicle from crossing guardrail and affect railway and normally run, making up the deficiency of traditional defense structure, improving science and the degree of reliability of safety prevention measure.
In order to solve the problems of the technologies described above, the present invention is achieved by following technical scheme:
A kind of bridge safeguard structure of highway crossing railway, comprise the lower cover be positioned between two width bridge median strip place girders and the upper cover plate be positioned between two width bridge median strip place bridge floor guardrail bases, described lower cover comprises lower cover steel plate and is welded in the stiffening rib bottom described lower cover steel plate, and described upper cover plate comprises upper cover plate steel plate and is connected to the armored concrete slab on described upper cover plate steel plate by shear connector; All rubber tile is pasted with between described lower cover steel plate and girder, between described upper cover plate steel plate and guardrail base.
The fixed component for placing bridge supporting pipelines is provided with bottom described upper cover plate steel plate.
Gap between described lower cover and girder, between described upper cover plate and guardrail base all adopts fluid sealant to close.
The space of 5cm ~ 10cm is provided with between described upper cover plate and described lower cover.
The invention has the beneficial effects as follows:
(1) the bridge safeguard structure of highway crossing railway of the present invention, its lower cover adopts steel work, assembled fast, construct convenient, effectively shorten the interference time of constructing to railway, serve the buffer action of bridge and railway, and for upper cover plate provides safe execution conditions, be the first safety guarantee of bridge safeguard structure.
(2) the bridge safeguard structure of highway crossing railway of the present invention, is provided with rubber tile between its lower cover steel plate and concrete girder, avoids between lower cover and girder and occurs clash into and cause its concrete local damage to come off, and then prevent from affecting railway operation.
(3) the bridge safeguard structure of highway crossing railway of the present invention, its lower cover makes bridge median strip form closed system, occur vehicle break through guardrail cause upper cover plate to be damaged time, upper cover plate can be realized and change when not disturbing railway normally to run.
(4) the bridge safeguard structure of highway crossing railway of the present invention, its upper cover plate has enough intensity, if there is vehicle to cross guardrail, upper cover plate directly can bear Vehicle Load.
(5) the bridge safeguard structure of highway crossing railway of the present invention, is provided with rubber tile between its upper cover plate steel plate and bridge floor guardrail base, avoids between upper cover plate and guardrail base and direct collision occurs, improve the durability of upper cover plate structure and guardrail base.
(6) the bridge safeguard structure of highway crossing railway of the present invention, is provided with fixed component bottom its upper cover plate, provides space for bridge arranges supporting pipelines, meets the laying requirement that highway median strip arranges supporting pipelines.
(7) the bridge safeguard structure of highway crossing railway of the present invention, leaves the space of 5cm ~ 10cm between its upper cover plate and lower cover, and this space meets the vertical deformation requirement of upper cover plate, thus avoids upper cover plate and lower cover to collide.
(8) the bridge safeguard structure of highway crossing railway of the present invention, its upper cover plate steel plate can be used as the bed die of pouring reinforcement concrete plate, and be effectively connected with concrete slab by shear connector, upper cover plate is made to form the entirety of a steel and concrete structure, there are enough strength and stiffness, the vehicular load requirement of bearing and crossing guardrail can be met.
(9) the bridge safeguard structure of highway crossing railway of the present invention, between its lower cover and girder, between upper cover plate and guardrail base, gap all adopts fluid sealant to close, improve structure seal, form the twice safety guarantee of safeguard structure, achieve bridge and completely isolated by between Midspan sag.
To sum up, the bridge safeguard structure of highway crossing railway of the present invention is a kind of novel Fencing protection form of structure, compare other safeguard procedures, not only there is good bridge floor sealing, tiny pendant thing can be avoided to fall, vehicular load can also be born, across the safety of railway under abundant guarantee, and adopt the collision that rational measure is avoided between steel beam column and concrete, reduce load action shock effect to bridge when cover plate, adapt to various flexible, the distortion such as sedimentation, construction and under all not affecting between the stage of replacement across the normal operation of railway, reasonability and the science of its design make to be issued to the completely closed of bridge floor in the prerequisite not affecting bridge using function.
Accompanying drawing explanation
Fig. 1 is the cross-sectional configuration schematic diagram of the bridge safeguard structure of highway crossing railway provided by the present invention;
Fig. 2 is the cross-sectional configuration schematic diagram of lower cover;
Fig. 3 is the longitudinal plane structure schematic diagram of lower cover;
Fig. 4 is the cross-sectional configuration schematic diagram of upper cover plate;
Fig. 5 is the longitudinal plane structure schematic diagram of upper cover plate.
In figure: 1: lower cover steel plate; 2: stiffening rib; 3: rubber tile; 4: armored concrete slab; 5: upper cover plate steel plate; 6: shear connector; 7: fixed component; 8: girder; 9: guardrail base; 10: fluid sealant.
Detailed description of the invention
As shown in Figure 1, this embodiment discloses herein a kind of bridge safeguard structure of highway crossing railway, be arranged between two width bridges, for median strip provides effective safeguard procedures, mainly comprise lower cover and upper cover plate.Lower cover is formed by Plate Welding, is positioned between two width bridge median strip place girders 8, makes bridge form closed system, and provides safety guarantee for the construction of upper cover plate and replacing.Upper cover plate is steel-concrete combined structure, is positioned between two width bridge median strip place bridge floor guardrail bases, can bears Vehicle Load.
Shown in composition graphs 2 and Fig. 3, lower cover is made up of lower cover steel plate 1, stiffening rib 2 and rubber tile 3.The both sides of lower cover steel plate 1 are positioned on the both sides girder 8 at median strip place respectively, and sticker rubber plate 3 between lower cover steel plate 1 and girder 8.The collision between lower cover steel plate 1 and girder 8 avoided by rubber tile 3, improves the durability of lower cover steel plate 1 and girder 8.Be provided with multiple stiffening rib 2 bottom lower cover steel plate 1, multiple stiffening rib 2 is arranged along the suitable bridge of bridge to interval, adds the bulk strength of lower cover on the one hand, plays the effect of restriction lower cover steel plate 1 transverse shifting on the other hand.
Lower cover adopts steel work, assembled fast, construct convenient, make bridge form closed system, and effectively shorten the interference time of construction to railway, for the construction of upper cover plate and replacing provide safety guarantee, avoid bridge floor pendant thing and upper cover plate construction normally runs on railway the impact caused.
Shown in composition graphs 4 and Fig. 5, upper cover plate is made up of rubber tile 3, armored concrete slab 4, upper cover plate steel plate 5, shear connector 6, fixed component 7.The both sides of upper cover plate steel plate 5 are positioned on the both sides bridge floor guardrail base at median strip place respectively, and sticker rubber plate 3 between upper cover plate steel plate 5 and guardrail base 9.The collision between upper cover plate steel plate 5 and guardrail base 9 avoided by rubber tile 3, improves the durability of upper cover plate steel plate 5 and guardrail base 9.Armored concrete slab 4 is provided with on upper cover plate steel plate 5, armored concrete slab 4 is effectively connected with upper cover plate steel plate 5 by shear connector, to form the entirety of a steel and concrete structure, make upper cover plate have enough strength and stiffness, thus the Vehicle Load crossing guardrail can be born.Wherein, upper cover plate steel plate 5 can be used as the bed die of armored concrete slab 4.
Be provided with multiple fixed component 7 bottom upper cover plate steel plate 5, multiple fixed component 7 is arranged along the suitable bridge of bridge to interval, provides arrangement space for the supporting pipelines for bridge.Fixed component 7 specifically can adopt the steel beam column such as reinforcing bar to be processed into " U " font with two right angles, and its two ends are welded in upper cover plate steel plate 5.
Gap between lower cover and girder 8, between upper cover plate and guardrail base 9 all adopts fluid sealant to close, and improves integrally-built seal, avoids junk to impact railway operation, realizes the completely isolated of bridge and railway.
Leave the space of 5cm ~ 10cm between upper cover plate and lower cover, this is the vertical deformation requirement in order to meet upper cover plate, avoids upper cover plate and lower cover to collide.
Above-mentioned bridge safeguard structure is when constructing, first make lower cover steel plate 1 and weld stiffening rib 2, after having welded below lower cover steel plate 1 both sides sticker rubber plate 3, the lower cover completed is installed, after lower cover installation in position, in lower cover steel plate 1 with the gap of girder 8, inject fluid sealant 10, make to form closed system between lower cover and girder 8, for the construction of upper cover plate provides safety guarantee; Then upper cover plate steel plate 5 is made, and be welded and fixed component 7 and shear connector 6, carry out the installation of upper cover plate steel plate 5 afterwards, after installation, with upper cover plate steel plate 5 for template carries out building of armored concrete slab 4, reach after design strength until concrete, in the gap between upper cover plate and guardrail base 9, inject fluid sealant 10, form complete safeguard structure system.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make the concrete conversion of a lot of form, these all belong within protection scope of the present invention.
Claims (4)
1. the bridge safeguard structure of a highway crossing railway, it is characterized in that, comprise the lower cover be positioned between two width bridge median strip place girders and the upper cover plate be positioned between two width bridge median strip place bridge floor guardrail bases, described lower cover comprises lower cover steel plate and is welded in the stiffening rib bottom described lower cover steel plate, and described upper cover plate comprises upper cover plate steel plate and is connected to the armored concrete slab on described upper cover plate steel plate by shear connector; All rubber tile is pasted with between described lower cover steel plate and girder, between described upper cover plate steel plate and guardrail base.
2. the bridge safeguard structure of a kind of highway crossing railway according to claim 1, is characterized in that, is provided with the fixed component for placing bridge supporting pipelines bottom described upper cover plate steel plate.
3. the bridge safeguard structure of a kind of highway crossing railway according to claim 1, is characterized in that, the gap between described lower cover and girder, between described upper cover plate and guardrail base all adopts fluid sealant to close.
4. the bridge safeguard structure of a kind of highway crossing railway according to claim 1, is characterized in that, be provided with the space of 5cm ~ 10cm between described upper cover plate and described lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410111017.4A CN103882802B (en) | 2014-03-24 | 2014-03-24 | A kind of bridge safeguard structure of highway crossing railway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410111017.4A CN103882802B (en) | 2014-03-24 | 2014-03-24 | A kind of bridge safeguard structure of highway crossing railway |
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| CN103882802A CN103882802A (en) | 2014-06-25 |
| CN103882802B true CN103882802B (en) | 2015-10-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024266B (en) * | 2018-09-21 | 2023-12-01 | 湖北省交通规划设计院股份有限公司 | Central separation belt concrete wall type guardrail connecting structure meeting double-bridge settlement difference and construction method |
| CN110701389B (en) * | 2019-09-25 | 2024-04-19 | 深圳市综合交通设计研究院有限公司 | Small-size utility tunnel device on bridge central authorities median |
| CN111926698A (en) * | 2020-07-20 | 2020-11-13 | 深圳市市政设计研究院有限公司 | Anti-collision wall structure |
| CN112458914A (en) * | 2020-11-24 | 2021-03-09 | 中铁武汉勘察设计院有限公司 | Railway-crossing framing bridge protection structure and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2586724A1 (en) * | 1985-08-27 | 1987-03-06 | Routier Equip Sa | METALLIC BARRIER, PARTICULARLY FOR THE EQUIPMENT OF ROADWAYS |
| CN1594741A (en) * | 2004-06-25 | 2005-03-16 | 清华大学 | Steel plate-concrete flitch plate |
| CN201865023U (en) * | 2010-11-30 | 2011-06-15 | 江苏省淮安市公路管理处 | Closed waterproof type central dividing strip for highway |
| CN201972252U (en) * | 2011-01-14 | 2011-09-14 | 江苏东南特种技术工程有限公司 | External water stopper structure |
| CN103147389A (en) * | 2013-03-15 | 2013-06-12 | 天津市市政工程设计研究院 | Novel bridge protecting facility |
-
2014
- 2014-03-24 CN CN201410111017.4A patent/CN103882802B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2586724A1 (en) * | 1985-08-27 | 1987-03-06 | Routier Equip Sa | METALLIC BARRIER, PARTICULARLY FOR THE EQUIPMENT OF ROADWAYS |
| CN1594741A (en) * | 2004-06-25 | 2005-03-16 | 清华大学 | Steel plate-concrete flitch plate |
| CN201865023U (en) * | 2010-11-30 | 2011-06-15 | 江苏省淮安市公路管理处 | Closed waterproof type central dividing strip for highway |
| CN201972252U (en) * | 2011-01-14 | 2011-09-14 | 江苏东南特种技术工程有限公司 | External water stopper structure |
| CN103147389A (en) * | 2013-03-15 | 2013-06-12 | 天津市市政工程设计研究院 | Novel bridge protecting facility |
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| CN103882802A (en) | 2014-06-25 |
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Address after: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee after: Tianjin municipal engineering design and Research Institute Co.,Ltd. Address before: 300051 No. 239, Yingkou Road, Heping District, Tianjin Patentee before: TIANJIN MUNICIPAL ENGINEERING DESIGN & Research Institute |