CN206581682U - A kind of interim transition structure in jacking framed bridge steel column for contacting net basis - Google Patents
A kind of interim transition structure in jacking framed bridge steel column for contacting net basis Download PDFInfo
- Publication number
- CN206581682U CN206581682U CN201720200112.0U CN201720200112U CN206581682U CN 206581682 U CN206581682 U CN 206581682U CN 201720200112 U CN201720200112 U CN 201720200112U CN 206581682 U CN206581682 U CN 206581682U
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- Prior art keywords
- pillar
- footing
- transition structure
- steel column
- steel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 230000007704 transition Effects 0.000 title claims abstract description 24
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of interim transition structure in jacking framed bridge steel column for contacting net basis, including rail reinforcement crossbeam, footing of a pillar is fixed with the rail reinforcement crossbeam, it is connected catenary mast by the footing of a pillar, the footing of a pillar is two H profile steels being arranged side by side.The utility model is using one group of H profile steel being arranged side by side as footing of a pillar, two sides of pillar flange are separately fixed in two H profile steels, force balance is realized, it is ensured that the steadiness of catenary mast, specification instructs catenary mast transition operation, guarantee driving safety.
Description
Technical field
The utility model is related to electrification railway contact net professional skill field, and more particularly to a kind of jacking framed bridge connects
The interim transition structure of net-fault steel-column foundation.
Background technology
When highway intersects with existing electrified railway, most highways can use under frame core-tube system and wear existing electrified railway side
Case.When underbridge is in railway section and little bridge deck width, row span adjustment can be entered to adjacent net-fault pillar.Work as bridge
Face width is larger, and span adjustment can not be met when requiring, different according to track strengthening method, the transition base form of contact net bar
Also it is different.When electric railway jacking bridge and culvert uses D beam construction methods, prop can be made in the support stake of D beams；Work as electrification
It is when railway jacking bridge and culvert work circuit is using beam reinforcement means in length and breadth, then generally soft across interim transition using large span.Above-mentioned
The drawbacks of a kind of method makees prop in the support stake of D beams is that prop can only be arranged on fixed position, shore position by
Limitation, possibly requirement can not be met for turnout mast, locating dowel etc..
Another method be using large span it is soft across the drawbacks of be that position is restricted, it is unstable with the fixed structure of contact line
Fixed, contact line changes scope greatly, and cost is high.The soft horizontal stroke of jacking framed bridge contact net bar large span for lifting beam hardened link in length and breadth
Across interim transition structure, limited due to being fixed by position so that contact net fixed structure form stress deformation is big, is also easy to produce peace
Full hidden danger.
Utility model content
The utility model provides a kind of interim transition structure in jacking framed bridge steel column for contacting net basis, in rail track plus
Gu setting contact net prop on crossbeam, the contact net bar that pillar is connected by steel structure base with track strengthening crossbeam is interim
Interim form can easily and flexibly be set according to engine request, is solved contact net bar and is set limitation problem.
The purpose of this utility model is achieved through the following technical solutions：
A kind of interim transition structure in jacking framed bridge steel column for contacting net basis, including rail reinforcement crossbeam, the iron
Footing of a pillar is fixed with the reinforcing crossmember of route road, is connected catenary mast, the pillar by the footing of a pillar
Basis is two H profile steels being arranged side by side.
Further, welding steel between two webs of the footing of a pillar, the surface of the footing of a pillar and steel plate is equal
Provided with zinc coat.
Further, the footing of a pillar uses HW300 × 300mm, web thickness 10mm, wing plate thickness 15mm H types
Steel.
Further, the catenary mast includes the flange and pillar body of method integrative-structure, and the pillar body is H
Steel column.
Further, the junction of the flange and pillar body is provided with bearing diagonal plate.
The beneficial effects of the utility model are：The utility model uses one group of H profile steel being arranged side by side as footing of a pillar,
Two sides of pillar flange are fixed in two H profile steels respectively, force balance is realized, it is ensured that the steadiness of catenary mast, two
The setting of individual H profile steel, moreover it is possible to avoid footing of a pillar from being influenceed to deform upon by weather and cause destroying for attachment structure；In addition, energy
Catenary mast is enough set to may be provided above bridges and culverts, contact net change scope is small, low cost, it is often more important that meet track switch
Post, the status requirement of the mainstay such as locating dowel makes the current disorderly and unsystematic way of transition project footing of a pillar become standardization, rule
Model instructs catenary mast transition operation, guarantee driving safety.
Brief description of the drawings
Fig. 1 is the vertical view for the interim transition structure in jacking framed bridge steel column for contacting net basis that the utility model embodiment is provided
Figure；
Fig. 2 is the side view for the interim transition structure in jacking framed bridge steel column for contacting net basis that the utility model embodiment is provided
Figure；
Fig. 3 is contact in the interim transition structure in jacking framed bridge steel column for contacting net basis that the utility model embodiment is provided
The side view of net pillar.
In figure：1st, rail reinforcement crossbeam；2nd, footing of a pillar；3rd, catenary mast；4th, steel plate；5th, flange；6th, pillar
Body；7th, bearing diagonal plate.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.Therefore, below to attached
The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model,
It is merely representative of selected embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
As shown in figure 1, Fig. 1 shows that the jacking framed bridge steel column for contacting net basis that the utility model embodiment is provided is interim
Footing of a pillar 2 is fixed with transition structure, including rail reinforcement crossbeam 1, rail reinforcement crossbeam 1, passes through pillar
Basis 2 is connected catenary mast 3, and footing of a pillar 2 is two H profile steels being arranged side by side, and footing of a pillar 2 adds with rail track
Gu the fixed form that crossbeam 1 is used is welds and fastened using 16 U bolts, the H profile steel being arranged side by side is used as footing of a pillar 2
Fixed form, realize force balance, it is ensured that the steadiness of catenary mast 3.
As shown in Fig. 2 in the web of footing of a pillar 2 welding steel 4, being set to for steel plate 4 be laterally every along footing of a pillar
10mm steel plate 4 is welded every 0.6mm, the surface of footing of a pillar 2 and steel plate 4 is equipped with zinc coat, prevents that footing of a pillar 2 is rotten
Erosion, steel plate 4 can further increase the intensity of structure.
Wherein, footing of a pillar 2 is 300mm, web thickness 10mm, wing plate thickness 15mm H types using height and width
Steel.
As shown in figure 3, catenary mast 3 includes the flange 5 and pillar body 6 of method integrative-structure, pillar body 6 is H types
Steel column.
Wherein further, the junction of flange 5 and pillar body 6 is provided with bearing diagonal plate 7, and supporting plate further ensures that branch
The steadiness of post body 6.
Experimental example：
, it is necessary to be reinforced to circuit in frame core-tube system jack-in process, while carrying out changing shifting temporarily to contact net bar.Circuit adds
Gu using beam reinforcement form in length and breadth, crossbeam uses 145b I-steel, spacing 0.6m, longeron uses I45b I-steel.Contact net branch
Post is supported on track strengthening crossbeam.
Contact line model CTHA-120, weight 1.172kg/m, carrier cable model TJ-95, weight 0.876kg/m, connect
Touch line and carrier cable amounts to 2.048kg/m, it is considered to ice load in dropper weight and wire, calculated by 4kg/m.Pillar side is limited
Three brackets of band, i.e. suspending weight 7.2kN on boundary 3.1m, span 60m, pillar, safety coefficient meter 1.15, suspending weight is about 8.5kN.
Contact net bar uses GHT240 types, and contact net H profile steel post uses Tonghua (2008) 1301-24 flange B forms.Contact
Net bar height is calculated according to 11m, flange bottom plate long 580mm, wide 630mm, and one side is using 4 diameter 20mm bolts, crab-bolt material
For Q235.Single-column and ring flange deadweight 15.7kN.
The double H steel of footing of a pillar use HW300*300, web thickness 10mm, wing plate thickness 15mm.Zhi Zhuji in the range of 0.6m
Plinth deadweight is to weld 10mm steel plates every 0.6m on the inside of 1.1kN, the web of double H-type steel, to increase structural stability.
Fixed form, footing of a pillar is first welded on rail reinforcement crossbeam, then fastened by U bolt, from U-shaped
During bolt, the equivalent cross-sectional area of anchor bolt should be no less than, is fastened using the U-bolt of 8 diameters 16.
Transition structure of the present utility model, axle power 27.5kN, horizontal force are acted on according to the post bottom for calculating post bottom load
3.6kN, horizontal bending moment 12.8kNm, crab-bolt diameter 20mm, by calculating, single axis force of anchor is 2.5kN ＜ 34kN (140MPa/
1000×245mm2), meet and require.Bridge track strengthening crossbeam I-steel is I45b, in jack-in process, is vacantly by maximum
5m is calculated, when contact net bar load action is in span centre, and the deformation of generation is maximum, is that 1.08mm (＜ l/400) meets requirement.
The H profile steel that the utility model is used simultaneously is fixed on rail reinforcement crossbeam as footing of a pillar, will be with branch
The flange that post body links into an integrated entity is fixed by bolts on footing of a pillar, i.e. the completion interim transition of pillar, simple and quick construction,
Mounted configuration is consolidated, and is capable of the construction technology of specification transition project footing of a pillar, guarantee driving safety.
Finally it should be noted that：Embodiment described above is merely to illustrate the technical solution of the utility model, rather than right
It is limited；Although the utility model is described in detail with reference to the foregoing embodiments, one of ordinary skill in the art should
Work as understanding：It can still modify to the technical scheme described in previous embodiment, or to which part or whole skills
Art feature carries out equivalent substitution；And these modifications or substitutions, do not make essence disengaging the utility model of appropriate technical solution each
The scope of embodiment technical scheme.
Claims (5)
1. a kind of interim transition structure in jacking framed bridge steel column for contacting net basis, including rail reinforcement crossbeam, its feature exist
In：Footing of a pillar is fixed with the rail reinforcement crossbeam, is connected catenary mast by the footing of a pillar,
The footing of a pillar is two H profile steels being arranged side by side.
2. the interim transition structure in jacking framed bridge steel column for contacting net basis as claimed in claim 1, it is characterised in that：The branch
Steel plate is welded between two webs of column foundation, the surface of the footing of a pillar and steel plate is equipped with zinc coat.
3. the interim transition structure in jacking framed bridge steel column for contacting net basis as claimed in claim 2, it is characterised in that：The branch
Column foundation uses HW300 × 300mm, web thickness 10mm, wing plate thickness 15mm H profile steel.
4. the interim transition structure in jacking framed bridge steel column for contacting net basis as claimed in claim 1, it is characterised in that：It is described to connect
Net-fault pillar includes the flange and pillar body of method integrative-structure, and the pillar body is H profile steel post.
5. the interim transition structure in jacking framed bridge steel column for contacting net basis as claimed in claim 4, it is characterised in that：The method
The blue junction with pillar body is provided with bearing diagonal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720200112.0U CN206581682U (en) | 2017-03-02 | 2017-03-02 | A kind of interim transition structure in jacking framed bridge steel column for contacting net basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720200112.0U CN206581682U (en) | 2017-03-02 | 2017-03-02 | A kind of interim transition structure in jacking framed bridge steel column for contacting net basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206581682U true CN206581682U (en) | 2017-10-24 |
Family
ID=60112073
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720200112.0U Expired - Fee Related CN206581682U (en) | 2017-03-02 | 2017-03-02 | A kind of interim transition structure in jacking framed bridge steel column for contacting net basis |
Country Status (1)
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| CN (1) | CN206581682U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847902A (en) * | 2019-12-04 | 2020-02-28 | 泉州市海恩德机电科技发展有限公司 | Strip stone miner |
| CN112140943A (en) * | 2019-06-27 | 2020-12-29 | 中铁第五勘察设计院集团有限公司 | Electrified railway shifting hard span and shifting method thereof |
| WO2021223443A1 (en) * | 2020-12-15 | 2021-11-11 | 中铁九局集团电务工程有限公司 | Construction method for temporary positioning of overhead line in adverse terrain |
| CN114919470A (en) * | 2022-04-29 | 2022-08-19 | 中铁一局集团厦门建设工程有限公司 | A transition method of catenary in the construction of roof and culvert in turnout area of electrified railway |
-
2017
- 2017-03-02 CN CN201720200112.0U patent/CN206581682U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140943A (en) * | 2019-06-27 | 2020-12-29 | 中铁第五勘察设计院集团有限公司 | Electrified railway shifting hard span and shifting method thereof |
| CN110847902A (en) * | 2019-12-04 | 2020-02-28 | 泉州市海恩德机电科技发展有限公司 | Strip stone miner |
| WO2021223443A1 (en) * | 2020-12-15 | 2021-11-11 | 中铁九局集团电务工程有限公司 | Construction method for temporary positioning of overhead line in adverse terrain |
| CN114919470A (en) * | 2022-04-29 | 2022-08-19 | 中铁一局集团厦门建设工程有限公司 | A transition method of catenary in the construction of roof and culvert in turnout area of electrified railway |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 Termination date: 20210302 |
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| CF01 | Termination of patent right due to non-payment of annual fee |