CN204343150U - A kind of high-speed railway bridge wind shielding structure column - Google Patents
A kind of high-speed railway bridge wind shielding structure column Download PDFInfo
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- CN204343150U CN204343150U CN201420728201.9U CN201420728201U CN204343150U CN 204343150 U CN204343150 U CN 204343150U CN 201420728201 U CN201420728201 U CN 201420728201U CN 204343150 U CN204343150 U CN 204343150U
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- column
- curved segment
- shielding structure
- wind shielding
- speed railway
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Abstract
The utility model relates to a kind of high-speed railway bridge wind shielding structure column.Existing general fast railroad bridge draught exclusion device cannot meet the windproof requirement of strong wind district high-speed railway bridge.The utility model includes and splices fixing straight section column and curved segment column up and down, is all reserved with the bolt hole for fixed wind sheild; Curved segment column Upper vertical, bottom Xiang Liang body center line bends; Curved segment column Upper vertical partial fixing is in beam body edge of a wing place, and box girder web is fixed in bottom; The column splicing seams of straight section column and curved segment column is positioned at more than bridge floor, and arranged outside has column scab, column scab is provided with column connecting bolt and straight section column and curved segment column is connected and fixed up and down.The utility model is under the prerequisite meeting bridge construction and wind shielding structure safety, the beam wind effect be applied on car body is changed by arranging wind shielding structure, improve the critical wind velocity of train safe operation, add the stability of train operation, decrease operation fault.
Description
Technical field
the utility model belongs to the windproof technical field of high-speed railway, is specifically related to a kind of high-speed railway bridge wind shielding structure column.
Background technology
Be positioned at the railway in strong wind area, the situation that train is turned over by large wind often occur, brings huge economic loss and serious social influence to the transport production of railway.Current China is only provided with wind shielding structure to the indivedual general fast railroad bridge in the Lan-xing Railway, South Sinkiang Railway wind district, and wind shielding structure column adopts the And of Varying Depth weldable steel i iron of perforate, and column and T beam keep off Zha Qiang and be connected, and adopts Q345qD steel.Existing general fast bridge wind shielding structure column and the disjunctor edge of a wing keep off Zha Qiang be bolted, column bottom pitch of bolts is less, and bolt is easily because of fatigue failure.
High Speed Railway Trains, because speed is fast, axle heavy and light, more easily topples under horizontal high wind effect; Train aerodynamic-force is much larger than general fast railroad train simultaneously, and the rigidity of current existing general fast bridge wind shielding structure pillar construction, stress, connection reliability all can not meet the instructions for use of high-speed railway.
Summary of the invention
The purpose of this utility model is to provide a kind of high-speed railway bridge wind shielding structure column, rigidity and intensity higher, be connected more reliable with beam body.
The technical scheme that the utility model adopts is:
A kind of high-speed railway bridge wind shielding structure column, is characterized in that:
Include and splice fixing straight section column and curved segment column up and down, be all reserved with the bolt hole for fixed wind sheild;
Described curved segment column Upper vertical, bottom Xiang Liang body center line bends; Curved segment column Upper vertical partial fixing is in beam body edge of a wing place, and box girder web is fixed in bottom.
Described straight section column and curved segment column are H profile steel.
The column splicing seams of described straight section column and curved segment column is positioned at more than bridge floor, and arranged outside has column scab, column scab is provided with column connecting bolt and straight section column and curved segment column is connected and fixed up and down.
Described curved segment column Upper vertical part is passed through the edge of a wing embedded sleeve barrel be embedded in the beam body edge of a wing in advance and is fixed on the beam body edge of a wing.
Described curved segment column bottom is provided with the bearing pin bi-lug plate for being connected to a fixed with the pre-buried pre-buried otic placode of beam body in box girder web.
Described curved segment column is provided with stiffener at edge of a wing arc.
The utility model has the following advantages:
1) the utility model is for high speed railway box girder, combination T beam feature, have developed the wind shielding structure and connecting structure new model that match, solves the fatigue problem of structure and connecting bolt, improve the safety of wind shielding structure.
More than high-speed railway bridge wind shielding structure bridge floor be highly 4m, because wind load and the effect of High Speed Railway Trains pulsating force are much larger than general fast railway, as adopted general fast railway and edge of a wing connected mode, stress, the fatigue durability of link position can meet instructions for use.As strengthened pitch of bolts, then beam body construction size increases more, and economy is poor.Separately, between tunnel, case beam need consider fortune, frame needed by tunnel, after widening in frange plate, cannot pass through tunnel; As watered the mode of the frange plate widened after employing, after the erection of beam body, the equal difficulty of installation of concreting and wind shielding structure is comparatively large, and construction quality is difficult to ensure.Therefore need to adopt novel column and beam body type of attachment.
Novel upright post top surface of the beam position moment of flexure maximum, whole is passed through; Column is all connected with beam body frange plate and box girder web (or T beam water chestnut), the two hinged increase bending resistance in the place arm of forces, reduces bolt stress width, solves the fatigue problem of column and connecting bolt; Ensure that wind shielding structure can according to design needs, select one-sided, bilateral, the various ways such as semiclosed and closed, be suitable for the different requirements of general wind district and strong wind area.
2) the utility model applicability is strong, and can support the use with the bridge such as high-speed railway Common Span case beam, T beam, special span Box Continuous, maintenance is convenient, good endurance.
By built-in fitting, firmly can be connected with all railroad bridge beam bodies, highly versatile, makes design, difficulty of construction and workload greatly reduce; Top wind shielding structure is at wind action, and the beam body edge of a wing and web all participate in stressed, and Liang Tike, under maintenance Standard Beam construction size prerequisite, only needs local strengthening arrangement of reinforcement, achieves wind shielding structure and mate use problem with general railway beam; Simultaneously wind shielding structure adopts the mode be directly connected with beam, utilizes beam body as the basis of wind shielding structure, can adapt to that different bridge is high, grade separation, flood discharge arrangement requirement, cost saving, be convenient to maintenance.
3) the utility model proposes the Novel connection type of wind shielding structure column and beam body, improve the connected mode of paravent unit board and column.The hinge that column is formed by bearing pin and otic placode is connected with beam body bottom, is connected, achieves junction transmitter shaft power and shearing, do not transmit the function of moment of flexure by bolt with frange plate.The connection of plate and column and plate and plate all adopts and arranges double nut and the locking mode with hollow pin.Improve the reliability of connected mode.
4) the utility model adopts weathering steel, reduces maintenance workload
Consider that Xinjiang region lacks rainwater, evaporation capacity is large, serious natural characteristic of simultaneously eroding, adopt Q355NHD weathering steel.Utilize the air weather resisteant of weathering steel, reduce maintenance workload.Column is laid and is avoided beam body spilled water hole position, avoids ponding, provides endurance quality.
5) be convenient to processing, can batch production manufacture, quality is easy to ensure, simple installation, effectively can shorten the construction period
Wind shielding structure column adopts steel work completely, and processing and manufacturing difficulty is little, can in factory's mass production, and efficiency is high, and quality easily ensures.It is with bolts that major part is installed in building site, and simple installation, the construction period is short.
Accompanying drawing explanation
Fig. 1 is the utility model front view.
Fig. 2 is I-I sectional view.
Fig. 3 is the utility model lateral view.
Fig. 4 is A drawing.
Fig. 5 is B drawing.
Fig. 6 is C drawing.
In figure, 1-straight section column, 2-curved segment column, 3-case beam, 4-column scab, 5-verge board, 6-edge of a wing embedded sleeve barrel, the 7-beam body edge of a wing, 8-bearing pin bi-lug plate.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
A kind of high-speed railway bridge wind shielding structure column that the utility model relates to, is installed on Bridge Beam portion windward side, and longitudinally one-sided or bilateral is arranged along the line, and longitudinal pitch 1.6-2.5m, is fixed with verge board with holes between adjacent upright posts, composition wind shielding structure.
Control by train gauge, column adopts form of straight lines more than bridge floor, is straight section column 1, and according to beam body edge of a wing jib-length and web anchorage point below bridge floor, being arranged to local camber line L column form, is curved segment column 2.Straight section column 1 and curved segment column about 2 splice fixing.Straight section column 1 is rolled h-section steel beam, and curved segment column 2 is welding arc H profile steel, is all reserved with the bolt hole for fixed wind sheild 5.H profile steel size is determined according to wind outside intensity of load: when wind load intensity is 4kPa-6kPa, H250 × 250 × 9 × 14 are got in cross section; As wind load intensity 2kPa-4kPa, H200 × 200 × 8 × 12 are got in cross section; When wind load intensity is less than 2kPa, H175 × 175 × 7.5 × 11 are got in cross section.Across beam seam place column be adaptive temperature change cause flexible, flange width needs suitably widen as required.Curved segment column 2 arranges stiffener at edge of a wing arc, and improving rigidity and connecting power transmission needs.
Curved segment column 2 Upper vertical, bottom Xiang Liang body center line bends.Curved segment column 2 Upper vertical partial fixing is in beam body edge of a wing place, and box girder web is fixed in bottom.The column splicing seams of straight section column 1 and curved segment column 2 is positioned at more than bridge floor, and arranged outside has column scab 4, column scab 4 is provided with column connecting bolt and straight section column 1 and curved segment column about 2 is connected and fixed.
Curved segment column 2 Upper vertical part is passed through the edge of a wing embedded sleeve barrel 6 be embedded in the beam body edge of a wing 7 in advance and is fixed on the beam body edge of a wing 7.Curved segment column 2 bottom is provided with the bearing pin bi-lug plate 8 for being connected to a fixed with the pre-buried pre-buried otic placode of beam body in box girder web.
During construction, before the cast of beam body, the built-in fitting at pre-buried edge of a wing place and web place.After beam body hoisted in position, first curved segment column 2 is installed, then straight section column 1 is installed.Keep out the wind after column installation, then mounting block aerofoil thereon, so far wind shielding structure installs.
Content of the present utility model is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading the utility model manual to any equivalence that technical solutions of the utility model are taked, is claim of the present utility model and contains.
Claims (6)
1. a high-speed railway bridge wind shielding structure column, is characterized in that:
Include and splice fixing straight section column (1) and curved segment column (2) up and down, be all reserved with the bolt hole for fixed wind sheild (5);
Described curved segment column (2) Upper vertical, bottom Xiang Liang body center line bends; Curved segment column (2) Upper vertical partial fixing is in beam body edge of a wing place, and box girder web is fixed in bottom.
2. a kind of high-speed railway bridge wind shielding structure column according to claim 1, is characterized in that:
Described straight section column (1) and curved segment column (2) are H profile steel.
3. a kind of high-speed railway bridge wind shielding structure column according to claim 2, is characterized in that:
The column splicing seams of described straight section column (1) and curved segment column (2) is positioned at more than bridge floor, arranged outside has column scab (4), column scab (4) is provided with column connecting bolt and straight section column (1) and curved segment column (2) is connected and fixed up and down.
4. a kind of high-speed railway bridge wind shielding structure column according to claim 3, is characterized in that:
Described curved segment column (2) Upper vertical part is passed through the edge of a wing embedded sleeve barrel (6) be embedded in the beam body edge of a wing (7) in advance and is fixed on the beam body edge of a wing (7).
5. a kind of high-speed railway bridge wind shielding structure column according to claim 4, is characterized in that:
Described curved segment column (2) bottom is provided with the bearing pin bi-lug plate (8) for being connected to a fixed with the pre-buried pre-buried otic placode of beam body in box girder web.
6. a kind of high-speed railway bridge wind shielding structure column according to claim 5, is characterized in that:
Described curved segment column (2) is provided with stiffener at edge of a wing arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728201.9U CN204343150U (en) | 2014-11-28 | 2014-11-28 | A kind of high-speed railway bridge wind shielding structure column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420728201.9U CN204343150U (en) | 2014-11-28 | 2014-11-28 | A kind of high-speed railway bridge wind shielding structure column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204343150U true CN204343150U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420728201.9U Active CN204343150U (en) | 2014-11-28 | 2014-11-28 | A kind of high-speed railway bridge wind shielding structure column |
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| CN (1) | CN204343150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404866A (en) * | 2014-11-28 | 2015-03-11 | 中铁第一勘察设计院集团有限公司 | High-speed rail bridge wind shielding structure vertical column |
-
2014
- 2014-11-28 CN CN201420728201.9U patent/CN204343150U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404866A (en) * | 2014-11-28 | 2015-03-11 | 中铁第一勘察设计院集团有限公司 | High-speed rail bridge wind shielding structure vertical column |
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