CN103882802A - Cross-railway road bridge protection structure - Google Patents
Cross-railway road bridge protection structure Download PDFInfo
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- CN103882802A CN103882802A CN201410111017.4A CN201410111017A CN103882802A CN 103882802 A CN103882802 A CN 103882802A CN 201410111017 A CN201410111017 A CN 201410111017A CN 103882802 A CN103882802 A CN 103882802A
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- cover plate
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Abstract
The invention discloses a cross-railway road bridge protection structure which comprises a lower cover plate and an upper cover plate, wherein the lower cover plate is arranged between main beams at the position of a center partition zone of two bridges, and the upper cover plate is arranged between guard bar bases of bridge floors at the position of the center partition zone of the two bridges. The lower cover plate comprises a lower cover plate steel plate and stiffening ribs welded to the bottom of the lower cover plate steel plate, the upper cover plate comprises an upper cover plate steel plate and a reinforced concrete plate connected on the upper cover plate steel plate through shearing connectors, and rubber plates are pasted between the lower cover plate steel plate and the main beams and between the upper cover plate steel plate and the guard bar bases respectively. The cross-railway road bridge protection structure is arranged between the two bridges, it can be safely and reliably guaranteed that the center partition zone is closed, objects are prevented from falling into a railway clearance, normal running of a railway is prevented from being influenced by the fact that vehicles cross guard bars to fall, the defects of a traditional protection structure are overcome, and the scientificity and the reliable degree of a safety protection measure are improved.
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 the take precautions against natural calamities form of net of level, under both actings in conjunction, can prevent that the pendant thing that is greater than mesh size from dropping, cross over railway at highroad, especially cross in the bridge of high-speed railway and be widely used.
Highway bridge is divided into single width bridge and two kinds of forms of double width bridge, mostly adopts double width bridge form in the time that bridge floor is wider, adopts median strip to separate between two width bridges.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 that vehicle from crossing guardrail and crash into railroad clearance and work the mischief.In addition, level the arranging of net of taking precautions against natural calamities needs the take precautions against natural calamities mesh of net of certain space, anti-throwing net and level cannot prevent that the tiny pendant thing that is 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, must adopt more effectively safeguard procedures, to ensure the safety of railway operation under construction and run duration bridge on bridge.
In recent years, China has strengthened the input to infrastructure construction, and the projects such as increasing high-speed railway, speedway, standard highway have been listed construction plan in, will inevitably generally occur thus the situation of highway bridge leap railway line position.Because importance and the security requirement of railway operation are not of the common run, highway overcrossing railway bridge must be taked necessity, reasonable, effective safety and Protection, guarantees the security of operation of railway.
Summary of the invention
The position, median strip of what the present invention will solve is existing highway crosses over railroad bridge lacks the technical problem of effective safeguard procedures, a kind of bridge safeguard structure of highway crossing railway is provided, it arranges between two width bridges, guarantee median strip sealing that can be safe and reliable, avoid junk to enter railway clearance, preventing that vehicle from crossing falls after guardrail and affects railway and normally move, and makes up the deficiency of traditional safeguard structure, improves 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 and be positioned over the lower cover between two width bridge median strip place girders and be positioned over the upper cover plate between two width bridge median strip place bridge floor guardrail bases, described lower cover comprises lower cover steel plate and the stiffening rib that is welded in described lower cover steel plate bottom, and described upper cover plate comprises upper cover plate steel plate and is connected in the armored concrete slab on described upper cover plate steel plate by shear connector; Between described lower cover steel plate and girder, be all pasted with rubber tile between described upper cover plate steel plate and guardrail base.
Described upper cover plate steel plate bottom is provided with the fixed component for placing bridge supporting pipelines.
Gap between described lower cover and girder, between described upper cover plate and guardrail base all adopts fluid sealant sealing.
Between described upper cover plate and described lower cover, be provided with the space of 5cm～10cm.
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, play 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, has avoided generation between lower cover and girder clash into and cause its concrete local damage to come off, and then has prevented 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, in the time vehicle occurs breaking through guardrail and cause upper cover plate to be damaged, can realize upper cover plate and change in the situation that not disturbing the normal operation of railway.
(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 can directly 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, has avoided, between upper cover plate and guardrail base, direct collision occurs, and has improved the durability of upper cover plate structure and guardrail base.
(6) the bridge safeguard structure of highway crossing railway of the present invention, its upper cover plate bottom is provided with fixed component, provides space for bridge arranges supporting pipelines, meets highway median strip and arrange the laying requirement of 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, this space meets the vertical deformation requirement of upper cover plate, thereby avoids upper cover plate and lower cover to bump.
(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 building armored concrete slab, and be effectively connected with concrete slab by shear connector, make upper cover plate form the entirety of a steel and concrete structure, there are enough strength and stiffness, can meet and bear the vehicular load requirement of crossing guardrail.
(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 sealing, improve structure seal, form the twice safety guarantee of safeguard structure, realized bridge and the isolation completely of being crossed over inter-railway.
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, can avoid tiny pendant thing to fall, can also bear vehicular load, under fully ensureing across the safety of railway, and adopt rational measure to avoid the collision between steel member and concrete, reduce load action shock effect to bridge in the time of cover plate, adapt to various flexible, the distortion such as sedimentation, under all not affecting between construction and the stage of replacement across the normal operation of railway, the reasonability of its design and the scientific sealing completely that makes to be issued in the prerequisite that does not affect bridge use function bridge floor.
Brief description of the drawings
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, the present embodiment has disclosed a kind of bridge safeguard structure of highway crossing railway, is arranged between two width bridges, for median strip provides effective safeguard procedures, mainly comprises 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 construction and the replacing of upper cover plate.Upper cover plate is steel-concrete combined structure, is positioned between two width bridge median strip place bridge floor guardrail bases, can bear Vehicle Load.
Shown in Fig. 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 over respectively on the both sides girder 8 at median strip place, and sticker rubber plate 3 between lower cover steel plate 1 and girder 8.Rubber tile 3 is avoided the collision between lower cover steel plate 1 and girder 8, has improved the durability of lower cover steel plate 1 with girder 8.Lower cover steel plate 1 bottom is provided with multiple stiffening ribs 2, and multiple stiffening ribs 2 arrange to interval along the suitable bridge of bridge, has increased on the one hand the bulk strength of lower cover, plays on the other hand the effect of restriction lower cover steel plate 1 transverse shifting.
Lower cover adopts steel work, assembled fast, construct conveniently, make bridge form closed system, and effectively shortened the interference time of construction to railway, for construction and the replacing of upper cover plate provide safety guarantee, avoid bridge floor pendant thing and the upper cover plate construction impact that normal operation causes on railway.
Shown in Fig. 2 and Fig. 3, 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 over respectively on the both sides bridge floor guardrail base at median strip place, and sticker rubber plate 3 between upper cover plate steel plate 5 and guardrail base 9.Rubber tile 3 is avoided the collision between upper cover plate steel plate 5 and guardrail base 9, has improved the durability of upper cover plate steel plate 5 with guardrail base 9.On upper cover plate steel plate 5, be provided with armored concrete slab 4, 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 there are enough strength and stiffness, thereby can bear the Vehicle Load of crossing guardrail.Wherein, upper cover plate steel plate 5 can be used as the bed die of armored concrete slab 4.
Upper cover plate steel plate 5 bottoms are provided with multiple fixed components 7, and multiple fixed components 7 arrange to interval along the suitable bridge of bridge, are used to the supporting pipelines of bridge that arrangement space is provided.Fixed component 7 specifically can adopt the steel members such as reinforcing bar to be processed into " U " font with two right angles, and its two ends are welded in to 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 sealing, has improved integrally-built seal, avoids junk to impact railway operation, realizes the isolation completely of bridge and railway.
Between upper cover plate and lower cover, leave the space of 5cm～10cm, this is the vertical deformation requirement in order to meet upper cover plate, avoids upper cover plate and lower cover to bump.
Above-mentioned bridge safeguard structure is in the time of construction, 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 completing is installed, after lower cover installation in position, in the gap of lower cover steel plate 1 and 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 make upper cover plate steel plate 5, and be welded and fixed member 7 and shear connector 6, carry out afterwards the installation of upper cover plate steel plate 5, after installation, carry out building of armored concrete slab 4 taking upper cover plate steel plate 5 as template, after concrete reaches design strength, in the gap between upper cover plate and guardrail base 9, inject fluid sealant 10, form complete safeguard structure system.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described 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; not departing from the scope situation that aim of the present invention and claim protect, can also make the concrete conversion of a lot of forms, within these all belong to protection scope of the present invention.
Claims (4)
1. the bridge safeguard structure of a highway crossing railway, it is characterized in that, comprise and be positioned over the lower cover between two width bridge median strip place girders and be positioned over the upper cover plate between two width bridge median strip place bridge floor guardrail bases, described lower cover comprises lower cover steel plate and the stiffening rib that is welded in described lower cover steel plate bottom, and described upper cover plate comprises upper cover plate steel plate and is connected in the armored concrete slab on described upper cover plate steel plate by shear connector; Between described lower cover steel plate and girder, be all pasted with rubber tile 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, described upper cover plate steel plate bottom is provided with the fixed component for placing bridge supporting pipelines.
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 sealing.
4. the bridge safeguard structure of a kind of highway crossing railway according to claim 1, is characterized in that, is 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 |
Applications Claiming Priority (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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| CN103882802A true CN103882802A (en) | 2014-06-25 |
| CN103882802B CN103882802B (en) | 2015-10-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024266A (en) * | 2018-09-21 | 2018-12-18 | 湖北省交通规划设计院股份有限公司 | Meet the median strip concrete wall type guard rail connection structure and construction method of double width bridge differential settlement |
| CN110701389A (en) * | 2019-09-25 | 2020-01-17 | 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' division strip |
| 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)
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| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024266A (en) * | 2018-09-21 | 2018-12-18 | 湖北省交通规划设计院股份有限公司 | Meet the median strip concrete wall type guard rail connection structure and construction method of double width bridge differential settlement |
| 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 |
| CN110701389A (en) * | 2019-09-25 | 2020-01-17 | 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' division strip |
| 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 |
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| CN103882802B (en) | 2015-10-28 |
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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 |
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