CN209307836U - A kind of medium-and low-speed maglev traffic two-wire integrated box girder - Google Patents
A kind of medium-and low-speed maglev traffic two-wire integrated box girder Download PDFInfo
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- CN209307836U CN209307836U CN201822000763.2U CN201822000763U CN209307836U CN 209307836 U CN209307836 U CN 209307836U CN 201822000763 U CN201822000763 U CN 201822000763U CN 209307836 U CN209307836 U CN 209307836U
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Abstract
The utility model discloses a kind of medium-and low-speed maglev traffic two-wire integrated box girders, including sleeper platform (3), evacuation platform (4), box beam (1) and top beam (2), the top beam (2) is symmetrically set in the top two sides of the box beam (1), the sleeper platform (3) is symmetrically set in the top two sides of the top beam (2), for attachment rail structure (5), evacuation platform (4) are equipped in the middle part of the box beam (1) between the top beam (2), and the box beam (1) and top beam (2) are reinforced concrete member, the two matches and passes through that factory is integral prefabricated or live one-piece casting is into integral structure, to bear extraneous load jointly.The medium-and low-speed maglev traffic two-wire integrated box girder of the utility model compensates for the deficiency of existing medium-and low-speed maglev elevated structure backbone type technology, box beam and top beam entirety stress, structure type is more succinct, common to bear external loads, integrality performance of the structure is preferable, and antivibration, torsional property are excellent.
Description
Technical field
The utility model belongs to medium-and low-speed maglev technical field of rail traffic, more particularly, to a kind of medium-and low-speed maglev
Traffic two-wire integrated box girder.
Background technique
Middle low speed magnetic suspension traffic belongs to a kind of novel rail traffic mode, and current research achievement both domestic and external is less,
Medium-and low-speed maglev route is based on elevated structure.The beam body scheme of medium-and low-speed maglev traffic two-wire location elevated structure is generally adopted
In two ways: first is that use two panels juxtaposition formula single line box beam as shown in Figure 1, setting transverse direction is linked between two panels single line box beam
Beam is arranged evacuation platform on straining beam, sets track and track structure in box beam；Another kind is use as shown in Figure 2 " on beam
The mode of beam ", i.e., (support rail beam is longitudinal laterally to be divided the support rail beam of two low clearances of setting every a distance setting on double line box girder
Seam), track and track structure are set on support rail beam, evacuation platform is set between support rail beam.
The beam type in existing medium-and low-speed maglev traffic elevated structure two-wire location has the disadvantage that
It (1) is a kind of relatively inexpensive beam type using two panels juxtaposition formula single line box beam, advantage is to save masonry material, disadvantage
It is two panels single line box beam between each other only by lateral linking beam connection, holistic resistant behavior is poor, and the sectional dimension of beam body is smaller,
Antivibration, torsional property are poor, not easy to overhaul.In addition, juxtaposition formula single line box-beam structure can not be by beam car, therefore can not adopt
Use bridge as beam transporting passage using Bridge Erector set up, generally require and used by the interim beam transporting passage that ground is built
Weight loop wheel machine lifting is set up, and this bridge structure regional difficulty of construction difficult in mountain area or the construction of ground transport channel is larger,
Construction cost is high, and is affected to environment.
(2) by the way of beam upper beam, advantage is that structure cross-section dimensions are big, and holistic resistant behavior is good, structure antivibration, antitorque
Ability is preferable, and Bridge Erector erection, easy for construction, easy access can be used in box beam.Shortcoming is waste masonry material, economy
Difference, the support rail beam on beam are not involved in bending resistance, shearing resistance stress, can not only play the role of transmission force, between box beam and support rail beam
Structural integrity is poor.
Utility model content
Aiming at the above defects or improvement requirements of the prior art, the utility model provides a kind of medium-and low-speed maglev traffic two-wire
Integrated box girder, the integrated box girder can make up the deficiency of existing beam type technology, have it is easy for construction, save material, it is whole by
The advantages that power performance is good, good economy performance, easy access.
To achieve the goals above, the utility model provides a kind of medium-and low-speed maglev traffic two-wire integrated box girder, including
Sleeper platform (3) and evacuation platform (4), the integrated box girder further include box beam (1) and top beam (2), and the top beam (2) is symmetrically set in
The top two sides of the box beam (1), for installing power rail, the sleeper platform (3) is symmetrically set in the top two of the top beam (2)
Side is used for attachment rail structure (5), is equipped with evacuation platform (4) in the middle part of the box beam (1) between the top beam (2), and described
Box beam (1) and top beam (2) are reinforced concrete member, and the two matches and passes through that factory is integral prefabricated or live one-piece casting
Into integral structure, to bear extraneous load jointly.
Further, the section of the box beam (1) be rectangle or inverted trapezoidal structure, depth of section according to structural span,
Stress, deformation condition determine.
Further, the inner corner trim on box beam (1) component or external corner are all made of chamfering or round corner treatment.
Further, the section of the top beam (2) be T-type or inverted L shape structure, depth of section according to vehicle gauge, connect
Rail-engaging (6) safe distance requires to determine.
Further, the top surface of the top beam (2) is linear type or U-shaped structure.
Further, the inner corner trim of top beam (2) lower part uses chamfering or round corner treatment.
Further, the evacuation platform (4) is T-steel structure, and top is laid with plank frame, multiplies for emergency
Visitor's evacuation.
In general, it can obtain down the above technical solutions conceived by the present invention are compared with the prior art,
Column the utility model has the advantages that
(1) the medium-and low-speed maglev traffic two-wire integrated box girder of the utility model, box beam and top beam entirety stress, structure shape
Formula is more succinct, bears external loads jointly, and integrality performance of the structure is preferable, and antivibration, torsional property are excellent, and integrated box girder is mended
The deficiency of existing medium-and low-speed maglev elevated structure backbone type technology, good social benefit can be received by promoting and applying integrated box girder
And economic benefit.
(2) the medium-and low-speed maglev traffic two-wire integrated box girder of the utility model, box beam and top beam formed by integrally casting form, no
Only globality good forming effect, and integral structure is formed therebetween, shared external load substantially increases it and holds
It is acted on by load such as ambient pressure, torques, bigger load effect can be born under the conditions of same sectional dimension, or holding
The sectional dimension that can reduce bridge under by the effect of same load, reduces materials, reduces cost.
(3) the medium-and low-speed maglev traffic two-wire integrated box girder of the utility model, can cast-in-place construction, can also be used first it is prefabricated
It is constructed afterwards using Bridge Erector full span erection, it is convenient to construct, and short time limit, construction cost is low, is adapted to mountain area, scenic spot, city etc.
Bridge prefabrication erection construction.
(4) the medium-and low-speed maglev traffic two-wire integrated box girder of the utility model, box beam are that rectangle or inverted trapezoidal box-shaped are cut
Face, depth of section according to structural span, stress, deformation etc. it needs to be determined that.The top both ends of box beam, section T is arranged in top beam
Type or inverted L shape, depth of section are calculated according to requirements such as vehicle gauge, conductor rail safe distances and are determined, the top surface of top beam is straight line
Type is U-shaped.
(5) the medium-and low-speed maglev traffic two-wire integrated box girder of the utility model, inner corner trim in box beam and header member or
External corner is all made of fillet processing, effectively prevents biggish stress concentration phenomenon, improves traditional medium-and low-speed maglev rail traffic
The structural stress of box beam concentrates situation, improves bridge service life.
(6) the medium-and low-speed maglev traffic two-wire integrated box girder of the utility model, structure size is moderate, bricklaying side's amount and two
Piece single line juxtaposition formula box-beam structure form is substantially suitable, saves project amount than " Liang Shangliang " scheme, technical and economic performance is good.
(7) the medium-and low-speed maglev traffic two-wire integrated box girder of the utility model, the beam length of integrated box girder can be according to it
Section, external environment condition, track structure require and the factors such as economic indicator are combined to determine.Cast-in-place apply can be used in integrated box girder
The prefabricated rear Bridge Erector full span erection construction of beam factory can also be used in work.
Detailed description of the invention
Fig. 1 is two panels juxtaposition formula single line box beam schematic diagram in the prior art；
Fig. 2 is " Liang Shangliang " schematic diagram in the prior art；
Fig. 3 is the monoblock type of inverted trapezoidal box beam and inverted L shape top beam (top surface linear type) composition in the utility model embodiment
Box beam schematic diagram；
Fig. 4 is the integrated box girder of rectangular box beam and T-type top beam (top surface linear type) composition in the utility model embodiment
Schematic diagram；
Fig. 5 is the integrated box of inverted trapezoidal box beam and inverted L shape top beam (top surface is U-shaped) type composition in the utility model embodiment
Beam schematic diagram；
Fig. 6 is that the integrated box girder of rectangular box beam and T-type top beam (top surface is U-shaped) composition is illustrated in the utility model embodiment
Figure.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.In addition, involved in the various embodiments of the present invention described below
And to technical characteristic can be combined with each other as long as they do not conflict with each other.
In order to solve defect or deficiency existing for the beam type in prior art medium-and low-speed maglev traffic elevated structure two-wire location,
The utility model proposes a kind of medium-and low-speed maglev traffic two-wire integrated box girder, which includes box beam, top beam, dredges
Platform, sleeper platform composition are dissipated, box beam, top beam, sleeper platform are reinforced concrete member, and box beam is poured with top beam monoblock type,
It is common to bear external loads.Cast-in-place construction can be used in integrated box girder, can also be used that beam factory is prefabricated and then Bridge Erector full span erection
Construction, sleeper platform can prefabricated construction synchronous with box beam, can also after the completion of box beam erection secondary cast-in-place construction, sleeper platform be used for pacify
Track structure is filled, the top center of box beam is arranged in evacuation platform, and using T-steel structure, top is laid with plank frame, is used for
Emergency passenger evacuation.Evacuation platform is the accessory structure of two-wire integrated box girder, according to function needs selection use or not
Using.
Box beam be rectangle or inverted trapezoidal box section, depth of section according to structural span, stress, deformation etc. it needs to be determined that.
The top both ends of box beam are arranged in top beam, and section is T-type or inverted L shape, and depth of section is according to vehicle gauge, conductor rail safe distance
Equal requirements, which calculate, to be determined, the top surface of top beam is linear type or U-shaped.The beam length of integrated box girder can be according to its section, external environment
Condition, track structure require and the factors such as economic indicator are combined to determine, sleeper platform is rectangular section.
The utility model in one embodiment, 1 section of box beam be inverted trapezoidal structure, corresponding top beam 2 be inverted L shape knot
It is overlapped at the top of structure, the long side of L-type structure and the box beam 1, and one-piece casting forms.
The utility model in one embodiment, 1 rectangular cross-section structure of box beam, corresponding top beam 2 be inverted L shape knot
It is overlapped at the top of structure, the long side of L-type structure and the box beam 1, and one-piece casting forms.
The utility model in one embodiment, 1 section of box beam be inverted trapezoidal structure, corresponding top beam 2 be inverted T shaped knot
Structure, the bottom of the T-type structure are overlapped with the top surface of the box beam 1, and one-piece casting forms.
The utility model in one embodiment, 1 rectangular cross-section structure of box beam, corresponding top beam 2 be inverted T shaped knot
Structure, the bottom of the T-type structure are overlapped with the top surface of the box beam 1, and one-piece casting forms.
Specifically, the utility model in one embodiment, inverted trapezoidal box beam and inverted L as shown in Figure 3 are provided
The integrated box girder of type top beam (top surface linear type) composition.The integrated box girder include box beam 1 and set on 1 top of the box beam
Top beam 2.Wherein, box beam 1 is reinforced concrete member, and section uses inverted trapezoidal structure, and depth of section can be according to stress and change
Shape condition, which calculates, to be determined.Top beam 2 is inverted L shape structure, and depth of section can be wanted according to vehicle gauge, safe distance of conductor rail 6 etc.
Calculating is asked to determine, L-type long side is overlapped with the top of box beam 1, and one-piece casting forms, and cast-in-place construction can be used, can also be used
Beam factory is prefabricated and then Bridge Erector full span erection is constructed.Box beam 1 and 2 formed by integrally casting of top beam form, not only globality good forming effect,
And integral structure is formed therebetween, shared external load substantially increases it and bears the load such as ambient pressure, torque
Lotus effect can bear bigger load effect under the conditions of same sectional dimension, or can in the case where bearing same load effect
To reduce the sectional dimension of bridge, reduces materials, reduce cost.
Preferably, the inner corner trim on 1 component of box beam or external corner are all made of fillet processing, effectively prevent biggish stress and concentrate
Phenomenon, the structural stress for improving traditional medium-and low-speed maglev rail traffic box beam concentrate situation, improve bridge service life.
Further, top beam 2 is the leading beam of medium-and low-speed maglev train, and side is for installing conductor rail 6, under top beam 2
The inner corner trim in portion is handled using fillet, and top is linear type, convenient for sleeper platform 3 is arranged in its top two sides, is used for attachment rail knot
Structure 5.
In addition, the top of box beam 1 can be used for being arranged evacuation platform 4 between two lines, realize on train passenger and staff
Train.
Preferably, the beam length of integrated box girder can require according to its section, external environment condition, track structure and combine warp
The factors such as index of helping determine.Integrated box girder can be used cast-in-place construction can also be used beam factory it is prefabricated after Bridge Erector full span erection apply
Work.
In the utility model other embodiments, several different box beams and beam structure form and its cooperation shape are provided
Formula includes as shown in figures 4-6 box beam 1, top beam 2, sleeper platform 3 and evacuation platform 4.Wherein, Fig. 4 show one of them
Embodiment, 1 rectangular cross-section structure of box beam, 2 T-type structures of top beam, and 2 integrated molding of box beam 1 and top beam, it is common to bear
Extraneous load, structure tension performance are good.Integrated box girder as shown in Figure 5,1 section of box beam be inverted trapezoidal structure, top beam 2
Inverted L shape structure, the molding of the two formed by integrally casting.Preferably, the top surface of top beam 2 is U-shaped structure, and both ends are used to install sleeper platform 3,
The U-shaped structure further reduces the sectional dimension of top beam, while having good mechanical characteristic.Monoblock type as shown in FIG. 6
In box beam, the rectangular cross-section structure of box beam 1, top beam 2 is T-type structure, and the top surface of top beam 2 is U-shaped structure, the U-shaped structure
Both ends for installing sleeper platform 3.The utility model is not limited to the above embodiments the these types of box beam and beam structure of middle offer
Form, as long as realizing integrated box girder construction in the column of the protection of the utility model.
The medium-and low-speed maglev traffic two-wire integrated box girder of the utility model, structure size is moderate, bricklaying side's amount and two panels
Single line juxtaposition formula box-beam structure form is substantially suitable, saves project amount than " Liang Shangliang " scheme, technical and economic performance is good.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
For limiting the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of medium-and low-speed maglev traffic two-wire integrated box girder, including sleeper platform (3) and evacuation platform (4), which is characterized in that
The integrated box girder further includes box beam (1) and top beam (2), and the top beam (2) is symmetrically set in the top two sides of the box beam (1),
For installing power rail, the sleeper platform (3) is symmetrically set in the top two sides of the top beam (2), is used for attachment rail structure
(5), evacuation platform (4) are equipped in the middle part of the box beam (1) between the top beam (2), and the box beam (1) and top beam (2) are equal
For reinforced concrete member, the two matches and passes through that factory is integral prefabricated or live one-piece casting is into integral structure, with
It is common to bear extraneous load.
2. a kind of medium-and low-speed maglev traffic two-wire integrated box girder according to claim 1, which is characterized in that the box beam
(1) section is rectangle or inverted trapezoidal structure, and depth of section is determined according to structural span, stress, deformation condition.
3. a kind of medium-and low-speed maglev traffic two-wire integrated box girder according to claim 1 or 2, which is characterized in that described
Inner corner trim or external corner on box beam (1) component are all made of chamfering or round corner treatment.
4. a kind of medium-and low-speed maglev traffic two-wire integrated box girder according to claim 1, which is characterized in that the top beam
(2) section is T-type or inverted L shape structure, and depth of section requires to determine according to vehicle gauge, conductor rail (6) safe distance.
5. a kind of medium-and low-speed maglev traffic two-wire integrated box girder according to claim 1 or 4, which is characterized in that described
The top surface of top beam (2) is linear type or U-shaped structure.
6. a kind of medium-and low-speed maglev traffic two-wire integrated box girder according to claim 1 or 4, which is characterized in that described
The inner corner trim of top beam (2) lower part uses chamfering or round corner treatment.
7. a kind of medium-and low-speed maglev traffic two-wire integrated box girder according to claim 1, which is characterized in that the evacuation
Platform (4) is T-steel structure, and top is laid with plank frame, is used for emergency passenger evacuation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403203A (en) * | 2018-11-30 | 2019-03-01 | 中铁磁浮交通投资建设有限公司 | A kind of medium-and low-speed maglev traffic two-wire integrated box girder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403203A (en) * | 2018-11-30 | 2019-03-01 | 中铁磁浮交通投资建设有限公司 | A kind of medium-and low-speed maglev traffic two-wire integrated box girder |
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