CN209339020U - A kind of L shape column adds diagonal brace to add baffle bridge wind shielding structure - Google Patents

A kind of L shape column adds diagonal brace to add baffle bridge wind shielding structure Download PDF

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Publication number
CN209339020U
CN209339020U CN201821368829.7U CN201821368829U CN209339020U CN 209339020 U CN209339020 U CN 209339020U CN 201821368829 U CN201821368829 U CN 201821368829U CN 209339020 U CN209339020 U CN 209339020U
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China
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wind
column
shape
diagonal brace
shielding structure
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CN201821368829.7U
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Inventor
刘宗峰
宁未华
宋韬彬
岳迎九
徐永利
吴少海
曾凯进
郑萍萍
陈举
闫希文
靳玮
刘骞儒
陈丁涛
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China Railway First Survey and Design Institute Group Ltd
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China Railway First Survey and Design Institute Group Ltd
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Abstract

The utility model relates to a kind of L shape columns, and diagonal brace to be added to add baffle bridge wind shielding structure, it keeps out the wind column in the longitudinal arranged in column L shape of T beam flange plate transverse end surface setting, the L shape column that keeps out the wind includes vertical bar and horizon bar two parts, adjacent L shape keep out the wind column vertical bar between be provided with the wind deflector of irregular aperture;L shape, which is kept out the wind, is provided with longitudinal arranged in column diagonal brace between column vertical bar and horizon bar connecting part and T beam bottom portion, oblique steel plate is provided between adjacent diagonal brace, gap is set between oblique steel plate and T beam, diagonal brace and oblique steel plate form the structure of triangular prism shape cavity between T beam lateral outer side and T beam flange plate.Wind load can be effectively reduced to the impact force of vehicle on bridge in this hair utility model, wind load is consumed by the wind deflector turbulent flow of aperture, when impacting the wind-force reflux of train to pavement position, air-flow can be guided to drain downwards by ventilative steel grating, reduce air-flow and spring back over train bottom again, forms a possibility that lifting force increases torque.

Description

A kind of L shape column adds diagonal brace to add baffle bridge wind shielding structure
Technical field
The utility model relates to bridge structure technical field of buildings, and in particular to a kind of L shape column adds diagonal brace to add baffle bridge Beam wind shielding structure.
Background technique
Northwest China portion especially Xinjiang region, property weather in inland is obvious, and desert area wind is big, and strong wind repeatedly threatens Lanzhou-Xinjiang iron Road, South Sinkiang Railway traffic safety and cause overturn etc. serious accidents.According to the existing Lan-xing Railway and South Sinkiang Railway data, Since opening operation, railway transportation because caused by windburn train derailing, capsizing case 32 rise, damage 111 section of lorry, car 11 Section.Because to stop wheel even more innumerable for train caused by strong wind, transport benefits are seriously affected, undesirable social shadow is also resulted in It rings.The problems such as withdrawal of train, more speed limit number of days, seriously affect railway operation safety and normal operation.
Most notably beam wind is influenced on vehicle, bridge is located at height in the air, and the threat by this wind load is bigger.At present Climate characteristic and local lineament for this strong wind, increase wind shielding structure in the windward side of bridge or two sides, to transverse direction Wind is blocked, and is reduced infringement of the strong wind to train, is reduced the incidence of unsafe accident.
Summary of the invention
The purpose of the utility model is to provide a kind of L shape columns, and diagonal brace to be added to add baffle bridge wind shielding structure, to beam wind into Row blocks, and prevents beam wind from acting directly on train, and train is caused the generations of unsafe accidents such as to topple.
The technology employed by the present utility model is
A kind of L shape column adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
It keeps out the wind column in the longitudinal arranged in column L shape of T beam flange plate transverse end surface setting, the L shape column that keeps out the wind includes vertical Bar and horizon bar two parts, adjacent L shape keep out the wind column vertical bar between be provided with the wind deflector of irregular aperture;
L shape keep out the wind be provided between column vertical bar and horizon bar connecting part and T beam bottom portion it is longitudinal it is arranged in column tiltedly It supports, is provided with oblique steel plate between adjacent diagonal brace, gap is set between oblique steel plate and T beam, and diagonal brace and oblique steel plate are in T beam lateral outer side The structure of triangular prism shape cavity is formed between T beam flange plate.
T beam flange plate transverse end surface is provided with the column built-in fitting that keeps out the wind, and the keep out the wind horizon bar inner face of column of L shape passes through gear Wind column built-in fitting is fixed to T beam flange plate transverse end surface, so that L shape be made to keep out the wind column fixed to T beam flange plate.
Adjacent L shape keep out the wind column horizon bar between be provided with lateral pavement horizontal column, pavement horizontal column upper berth Plate is walked equipped with pavement steel grating.
The lateral outer side in T beam bottom portion is provided with brace embedded part, and diagonal brace lower end is fixed to T beam by brace embedded part, tiltedly Support upper end and L shape keep out the wind column welded connecting.
The keep out the wind vertical bar of column of L shape is I-steel, and the wind deflector of irregular aperture is laterally inserted into I-shaped steel tank simultaneously It is bolted.
Oblique steel plate is fixed to ... by welding on diagonal brace.
The wind deflector of irregular aperture is corrugated sheet, and circular hole and slotted hole are distributed with thereon.
The L shape column bridge that keeps out the wind is set at one to spacing 2m, is highly 4m.
L shape keep out the wind column vertical bar top it is inwardly micro-bend.
L shape keep out the wind column horizon bar inside height it is consistent with T beam flange plate.
The utility model has the advantage that
(1) L shape steel column structure is light:
The construction of bridge beam body is smaller, especially the flange plate on the left and right both sides in T beam cross section
Locate smaller, the big wind shielding structure superimposed of construction size, is influenced by structure own wt, T beam construction size It is difficult to meet requirement.L shape steel column may be calculated after on column part open, reduce the self weight of column.
(2) the waveform wind deflector of irregular aperture can consume wind-force, reduce structure stress:
By the irregular hole interlaced arrangement such as opened round, ellipse, triangle, rectangle on paravent, cause Wind direction and the wind-force for crossing waveform wind deflector are strong and weak different.Irregular aperture forms turbulent flow, consumes mutually, reduces wind speed.It opens parallel Kong Hou, a part of wind load act directly on paravent, cause wind load suffered by paravent smaller than the load of non-aperture.And And after aperture, wind deflector weight becomes smaller, and vertical load becomes smaller.
(3) triangular prism shape cavity in bottom can further enhance windproof effect:
Triangular prism shape cavity, the effect of bottom crosswind force, by fluid suction, air pressure can be lower than external pressure in cavity, when Top acts on ON TRAINS through the transversely and horizontally wind of waveform wind deflector, and the air-flow under counter steer can be arranged by ventilative steel grating Enter lower triangle cavity to drain, train bottom will not be sprung back over again and form lifting force, it is curved to the torsion of train to reduce wind-force Square further enhances windproof effect.
(4) diagonal brace between beam bottom portion and L shape column disperses wind load:
Beam bottom portion and L shape keep out the wind column long short side between add column, change dynamics pipeline, reduce T beam Stress at flange plate disperses wind action power, without meeting force request by increasing T girder construction size, Reduce cost.
(5) pavement horizontal column is added between two L shapes keep out the wind column:
The horizontal column in pavement is added between two L shapes keep out the wind column, sidewalk loading is dispersed, by Pedestrian Load Further dispersion prevents from concentrating to act on keeping out the wind on column, causes wind load excessive.
(6) pavement horizontal column is added between L shape column, steel grating sidewalk pedestrian board size can be reduced, it is easy to carry And maintenance construction.
Detailed description of the invention
Fig. 1 is the utility model cross-sectional view.
Fig. 2 is the utility model skiagraph.
Fig. 3 is that the ventilative pavement steel grating of the utility model walks plate artwork
Fig. 4 is the irregular ventilative effect picture of aperture corrugated sheet of the utility model.
Fig. 5 is the utility model triangular prism shape cavity wind effect figure.
In figure, 1- L shape is kept out the wind column, the wind deflector of the irregular aperture of 2-, 3- diagonal brace, 4- T beam, 5- T beam flange plate, The pavement 6- horizontal column, the pavement 7- steel grating walk plate, the oblique steel plate of 8-, 9- triangular prism shape cavity.
Specific embodiment
The utility model is described in detail With reference to embodiment.
The utility model relates to a kind of L shape columns, and diagonal brace to be added to add baffle bridge wind shielding structure, be installed on 4 transverse side of T beam, Beam wind is blocked, laterally big harm of the wind load to vehicle on bridge etc. is reduced.
4 top transverse ends of T beam are provided with T beam flange plate 5, and the utility model is vertical in the setting of 5 transverse end surface of T beam flange plate It keeps out the wind column 1 to arranged in column L shape, it is highly 4m that the L shape column Bridge 1 that keeps out the wind is set at one to spacing 2m.L shape keep out the wind column 1 packet Vertical bar and horizon bar two parts are included, vertical bar top is inwardly micro-bend, and horizon bar inside height is consistent with 5 side end of T beam flange plate. 5 transverse end surface of T beam flange plate is provided with the column built-in fitting that keeps out the wind, including pre-embedded steel slab and pre-embedded bolt etc., and L shape is kept out the wind column 1 Horizon bar inner face by the column built-in fitting that keeps out the wind fixed to 5 transverse end surface of T beam flange plate, to keep the L shape column 1 that keeps out the wind solid Surely T beam flange plate 5 is arrived.
Adjacent L shape keep out the wind column 1 vertical bar between be provided with the wind deflector 2 of irregular aperture, L shape is kept out the wind column 1 Vertical bar is I-steel, and the wind deflector 2 of irregular aperture is laterally inserted into I-shaped steel tank and is bolted.Irregularly open The wind deflector 2 in hole is corrugated sheet, and circular hole and slotted hole are distributed with thereon.
L shape keep out the wind be provided between 1 vertical bar of column and horizon bar connecting part and 4 bottom of T beam it is longitudinal arranged in column Diagonal brace 3.The lateral outer side of 4 bottom of T beam is provided with brace embedded part, including pre-embedded steel slab and pre-embedded bolt etc., and 3 lower end of diagonal brace is logical Brace embedded part is crossed fixed to T beam 4,3 upper end of diagonal brace and L shape are kept out the wind the welded connecting of column 1.It is provided between adjacent diagonal brace 3 tiltedly Steel plate 8, oblique steel plate 8 are fixed to ... by welding on diagonal brace 3.Gap, diagonal brace 3 and oblique steel are set between oblique steel plate 8 and T beam 4 Plate 8 forms the structure of triangular prism shape cavity 9 between 4 lateral outer side of T beam and T beam flange plate 5.
Adjacent L shape keep out the wind column 1 horizon bar between be provided with lateral pavement horizontal column 6, in pavement horizontal column 6 It is equipped with pavement steel grating step plate 7.L shape keep out the wind column 1 horizon bar width it is identical as sidewalk width, irregular aperture Wind deflector 2 and the protective action for playing pedestrian guardrail.Pavement horizontal column 6 can disperse sidewalk loading, prevent from concentrating It acts on L shape to keep out the wind on column 1, it is excessive to make the at L-shaped 1 root load of column that keeps out the wind.
It realizes that the position of windproof function mainly has at two: transverse direction 1. being consumed by the wind deflector 2 of the irregular aperture in top Wind-force reduces beam wind to the active force of train.2. triangular prism shape cavity 9, crosswind force between top bridge floor, lower beam bottom Effect, by fluid suction, air pressure can be lower than external pressure in cavity, when top is through the transverse direction of the wind deflector 2 of irregular aperture ON TRAINS, the air-flow under counter steer can walk plate 7 by ventilative pavement steel grating and be discharged into lower part triangular prism for horizontal wind effect Shape cavity 9 is drained, and is drained still further below from the gap between oblique steel plate 8 and T beam 4, will not be sprung back over train bottom again and be formed promotion Power reduces wind-force to the torsion moment of flexure of train, further enhances windproof effect.
Work progress are as follows:
1, it first constructs T beam 4, keeps out the wind the pre-buried brace embedded part of stud and gear during constructing T beam 4 in pre-installation Wind column built-in fitting.
2, after the completion of the erection of T beam 4, built-in fitting position installation L shape is kept out the wind 3 rod piece of column 1 and diagonal brace in beam body, diagonal brace 3 other sides and L shape are kept out the wind the welding of column 1.
3, it is close to diagonal brace 3 and welds oblique steel plate 8, lower part needs that air-flow can be exported.
4, it keeps out the wind in T beam 4 beam body, two L shapes and pavement horizontal column 6 is installed between column 1.
5, it keeps out the wind on 1 side vertical bar of column in L shape with the wind deflector 2 of the irregular aperture of the installations such as bolt.
6, it keeps out the wind in L shape and is laid with ventilative pavement steel grating step plate 7 between 1 horizon bar of column and pavement horizontal column 6, Blending bolt is fixed.
Wind load can be effectively reduced to the impact force of vehicle on bridge in this hair utility model, by wind load gear vehicle with Outside, wind load is consumed by the wind deflector turbulent flow of aperture, wind load is resisted by wind shielding structure and beam body.And works as and impact column The wind-force reflux of vehicle can guide air-flow to drain downwards, reduce air-flow and recoil again to pavement position by ventilative steel grating To train bottom, a possibility that forming lifting force, torsion moment of flexure is reduced, effectively reduces strong wind to the prestige of vehicle on bridge The side of body.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are practical new by reading this Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model Cover.

Claims (9)

1. a kind of L shape column adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
It keeps out the wind column (1) in the longitudinal arranged in column L shape of T beam flange plate (5) transverse end surface setting, the L shape column (1) that keeps out the wind includes Vertical bar and horizon bar two parts, adjacent L shape keep out the wind column (1) vertical bar between be provided with the wind deflector of irregular aperture (2);
L shape keep out the wind be provided between column (1) vertical bar and horizon bar connecting part and T beam (4) bottom it is longitudinal arranged in column Diagonal brace (3) is provided with oblique steel plate (8) between adjacent diagonal brace (3), and oblique steel plate (8) is fixed to ... by welding on diagonal brace (3), Gap is set between oblique steel plate (8) and T beam (4), and diagonal brace (3) and oblique steel plate (8) are in T beam (4) lateral outer side and T beam flange plate (5) structure of triangular prism shape cavity (9) is formed between.
2. a kind of L shape column according to claim 1 adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
T beam flange plate (5) transverse end surface is provided with the column built-in fitting that keeps out the wind, and the keep out the wind horizon bar inner face of column (1) of L shape passes through The column built-in fitting that keeps out the wind is fixed to T beam flange plate (5) transverse end surface, so that L shape be made to keep out the wind column (1) fixed to T beam flange plate (5).
3. a kind of L shape column according to claim 1 adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
Adjacent L shape keep out the wind column (1) horizon bar between be provided with lateral pavement horizontal column (6), pavement horizontal column (6) On be equipped with pavement steel grating step plate (7).
4. a kind of L shape column according to claim 1 adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
The lateral outer side of T beam (4) bottom is provided with brace embedded part, and diagonal brace (3) lower end is fixed to T beam by brace embedded part (4), diagonal brace (3) upper end and L shape are kept out the wind column (1) welded connecting.
5. a kind of L shape column according to claim 1 adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
The keep out the wind vertical bar of column (1) of L shape is I-steel, and the wind deflector (2) of irregular aperture is laterally inserted into I-shaped steel tank And it is bolted.
6. a kind of L shape column according to claim 1 adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
The wind deflector (2) of irregular aperture is corrugated sheet, and circular hole and slotted hole are distributed with thereon.
7. a kind of L shape column according to claim 1 adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
L shape column (1) bridge that keeps out the wind is set at one to spacing 2m, is highly 4m.
8. a kind of L shape column according to claim 1 adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
L shape keep out the wind column (1) vertical bar top it is inwardly micro-bend.
9. a kind of L shape column according to claim 1 adds diagonal brace to add baffle bridge wind shielding structure, it is characterised in that:
L shape keep out the wind column (1) horizon bar inside height and T beam flange plate (5) it is consistent.
CN201821368829.7U 2018-08-24 2018-08-24 A kind of L shape column adds diagonal brace to add baffle bridge wind shielding structure Active CN209339020U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821368829.7U CN209339020U (en) 2018-08-24 2018-08-24 A kind of L shape column adds diagonal brace to add baffle bridge wind shielding structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821368829.7U CN209339020U (en) 2018-08-24 2018-08-24 A kind of L shape column adds diagonal brace to add baffle bridge wind shielding structure

Publications (1)

Publication Number Publication Date
CN209339020U true CN209339020U (en) 2019-09-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109024325A (en) * 2018-08-24 2018-12-18 中铁第勘察设计院集团有限公司 L shape column adds diagonal brace to add baffle bridge wind shielding structure
CN113652979A (en) * 2021-08-25 2021-11-16 吉林建筑大学 Adjustable wind barriers for bridge construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109024325A (en) * 2018-08-24 2018-12-18 中铁第勘察设计院集团有限公司 L shape column adds diagonal brace to add baffle bridge wind shielding structure
CN113652979A (en) * 2021-08-25 2021-11-16 吉林建筑大学 Adjustable wind barriers for bridge construction
CN113652979B (en) * 2021-08-25 2022-09-23 吉林建筑大学 Bridge construction is with adjustable windbreak

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