CN104404866A - High-speed rail bridge wind shielding structure vertical column - Google Patents
High-speed rail bridge wind shielding structure vertical column Download PDFInfo
- Publication number
- CN104404866A CN104404866A CN201410700933.1A CN201410700933A CN104404866A CN 104404866 A CN104404866 A CN 104404866A CN 201410700933 A CN201410700933 A CN 201410700933A CN 104404866 A CN104404866 A CN 104404866A
- Authority
- CN
- China
- Prior art keywords
- column
- vertical column
- wind shielding
- shielding structure
- curved segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
- E01F7/025—Devices specially adapted for protecting against wind, e.g. screens, deflectors or attenuators at tunnel or lock entrances
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a high-speed rail bridge wind shielding structure vertical column. The existing ordinary-speed rail bridge wind shielding measures cannot satisfy a windproof requirement of a high-speed rail bridge in a strong wind area. The high-speed rail bridge wind shielding structure vertical column comprise a straight-section vertical column and a bending-section vertical column which are vertically fixed by splicing; the straight-section vertical column and the bending-section vertical column are provided with bolt holes which are used for fixing wind shielding plates; the upper portion of the bending-section vertical column is vertical and the lower portion bends towards a central line of a beam body; the upper portion vertical portion of the bending-section vertical column is fixed at a flange of the beam body and the bottom end is fixed on a box beam web; a vertical column splicing seam of the straight-section vertical column and the bending-section vertical column is arranged above a bridge surface; the external side is provided with a vertical column splicing plate; a vertical column connecting bolt is arranged on the vertical column splicing plate to enable the straight-section vertical column and the bending-section vertical column to be vertically connected with fixed. According to the high-speed rail bridge wind shielding structure vertical column, the cross wind function acting on a train body is changed through a wind shielding structure under the premise that the safety of the bridge structure and the wind shielding structure is satisfied, the critical wind speed of the train safe operation is improved, the train operation stability is increased, and the operation fault is reduced.
Description
Technical field
the invention belongs to the windproof technical field of high-speed railway, be 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 object of this invention 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 solution adopted in the present invention is:
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 present invention has the following advantages:
1) the present invention is directed to high speed railway box girder, combination T beam feature, have developed the wind shielding structure and connecting structure new model that match, solve 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) applicability of the present invention 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 present invention 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 present invention 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 front view of the present invention.
Fig. 2 is I-I sectional view.
Fig. 3 is lateral view of the present invention.
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, 7-box beam flange, 8-bearing pin bi-lug plate.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention will be described in detail.
A kind of high-speed railway bridge wind shielding structure column that the present invention 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 invention is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading manual of the present invention to any equivalence that technical solution of the present invention is taked, is claim of the present invention and contains.
Claims (6)
1. 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. 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. 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. 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. 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. 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 |
|---|---|---|---|
| CN201410700933.1A CN104404866A (en) | 2014-11-28 | 2014-11-28 | High-speed rail bridge wind shielding structure vertical column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410700933.1A CN104404866A (en) | 2014-11-28 | 2014-11-28 | High-speed rail bridge wind shielding structure vertical column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104404866A true CN104404866A (en) | 2015-03-11 |
Family
ID=52642527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410700933.1A Pending CN104404866A (en) | 2014-11-28 | 2014-11-28 | High-speed rail bridge wind shielding structure vertical column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104404866A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295537A (en) * | 2019-07-02 | 2019-10-01 | 中冶南方工程技术有限公司 | A kind of bridge adds the base unit of sound barrier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10219624A (en) * | 1997-02-05 | 1998-08-18 | Sekisui Jushi Co Ltd | Guardrail of panel integrated type |
| KR20090051386A (en) * | 2007-11-19 | 2009-05-22 | 삼성물산 주식회사 | A marine bridge |
| CN201406629Y (en) * | 2009-04-21 | 2010-02-17 | 中铁第一勘察设计院集团有限公司 | Railroad bridge wind shield |
| CN102691272A (en) * | 2012-06-05 | 2012-09-26 | 中铁第一勘察设计院集团有限公司 | Bridge-tunnel integration flexible steel mesh open cut tunnel structure for preventing falling rocks |
| CN202969285U (en) * | 2012-10-25 | 2013-06-05 | 天津滨海润鹏路桥工程材料有限公司 | Railway bridge windshield |
| CN204343150U (en) * | 2014-11-28 | 2015-05-20 | 中铁第一勘察设计院集团有限公司 | A kind of high-speed railway bridge wind shielding structure column |
-
2014
- 2014-11-28 CN CN201410700933.1A patent/CN104404866A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10219624A (en) * | 1997-02-05 | 1998-08-18 | Sekisui Jushi Co Ltd | Guardrail of panel integrated type |
| KR20090051386A (en) * | 2007-11-19 | 2009-05-22 | 삼성물산 주식회사 | A marine bridge |
| CN201406629Y (en) * | 2009-04-21 | 2010-02-17 | 中铁第一勘察设计院集团有限公司 | Railroad bridge wind shield |
| CN102691272A (en) * | 2012-06-05 | 2012-09-26 | 中铁第一勘察设计院集团有限公司 | Bridge-tunnel integration flexible steel mesh open cut tunnel structure for preventing falling rocks |
| CN202969285U (en) * | 2012-10-25 | 2013-06-05 | 天津滨海润鹏路桥工程材料有限公司 | Railway bridge windshield |
| CN204343150U (en) * | 2014-11-28 | 2015-05-20 | 中铁第一勘察设计院集团有限公司 | A kind of high-speed railway bridge wind shielding structure column |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295537A (en) * | 2019-07-02 | 2019-10-01 | 中冶南方工程技术有限公司 | A kind of bridge adds the base unit of sound barrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205024907U (en) | Vary joint construction of wide flange I -beam roof beam of prestressing force hollow floor and edge of a wing | |
| CN202899016U (en) | Arched steel truss bridge with slide rails | |
| CN204023778U (en) | The connected node of prefabricated assembled concrete beam column | |
| CN202936736U (en) | Cable-stayed bridge composite beam construction bridge floor crane | |
| CN204530418U (en) | A kind of steel plate combination beam bridge | |
| CN110205938B (en) | Steel pipe arch installation method of through beam-arch combination bridge | |
| CN203903834U (en) | Internal-climbing tower crane | |
| CN203559354U (en) | Stay cable anchoring structure applied to prestressed concrete partially cable-stayed bridge | |
| CN202000265U (en) | Concrete construction formwork for high pier of bridge | |
| CN204343150U (en) | A kind of high-speed railway bridge wind shielding structure column | |
| CN202116984U (en) | Dragging-adjustable cross-brace device for continuous beams of spatial steel pipe trusses | |
| CN207092331U (en) | Combined type reinforced truss floor support plate | |
| CN203741690U (en) | Pedestrian overcrossing assembling type steel truss girder | |
| CN104404866A (en) | High-speed rail bridge wind shielding structure vertical column | |
| CN206616765U (en) | Large span is without depending on huge bandy truss pull bar | |
| CN202672022U (en) | Large span modularized aluminium alloy foot bridge with single span of 30 meters -60 meters | |
| CN104389263A (en) | High-speed railway bridge wind blocking structure | |
| CN202627327U (en) | Haunching double-hinge straight arch beam | |
| CN202578109U (en) | Double-upright-post type aluminum alloy accident repair tower | |
| CN208934394U (en) | One kind can turnover type hydraulic climbing formwork wall-attaching equipment | |
| CN110373990A (en) | The double-deck whole hole of Combined steel truss beam manufactures and erection construction method | |
| CN101775876A (en) | Spacial steel roof truss | |
| CN206220248U (en) | A kind of Column Joint structure | |
| CN205222516U (en) | Stand and track crossbeam connection structure between assembled maintenance | |
| CN104746932A (en) | Pressure weight type roof communication tower and mounting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |
|
| RJ01 | Rejection of invention patent application after publication |