CN202730634U - Viaduct channel girder segment prefabricated structure for rail transit - Google Patents
Viaduct channel girder segment prefabricated structure for rail transit Download PDFInfo
- Publication number
- CN202730634U CN202730634U CN 201220304569 CN201220304569U CN202730634U CN 202730634 U CN202730634 U CN 202730634U CN 201220304569 CN201220304569 CN 201220304569 CN 201220304569 U CN201220304569 U CN 201220304569U CN 202730634 U CN202730634 U CN 202730634U
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- trough girder
- rail transit
- channel
- face
- segment structure
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Abstract
The utility model relates to the technical field of channel girders for rail transit, in particular to a viaduct channel girder segment prefabricated structure for the rail transit. The viaduct channel girder segment prefabricated structure for the rail transit comprises a plurality of channel girder segments which are mutually spliced; each channel girder segment comprises a bottom plate and web plates, wherein the web plates are respectively arranged at both sides of the bottom plate in the manner of upwards extending. As viaduct channel girder bodies are respectively prefabricated into the channel girder segments, all the channel girder segments are lighter than the reamed prefabricated channel girders in weight, and the requirement on the tonnage of hoisting transportation equipment is not high, so that the channel girders can be conveniently transported, fewer supports need to be erected on the construction site, the occupied area is small; and the influence to the ground traffic is small. Moreover, all the channel girder segments are produced in a factory for prefabrication, so that the production quality of the girder bodies can be effectively controlled, and the influence of the construction process to the environment is small. Moreover, a prefabrication mould can be repeatedly used, so that the expense amortization rate of manufacturing equipment is high, and the project cost is lower.
Description
Technical field
The utility model relates to track traffic trough girder technical field, particularly relates to rail transit elevated bridge trough girder precast segment structure.
Background technology
Along with the rapid growth of China's economy, the urban rail transit construction of China is also at high speed development.Consider from the construction cost aspect, viaduct is the first-selection of urban rail transit construction often.
At present, trough girder and box beam are to set up viaduct two kinds of girder constructions commonly used, the technical foundation that prior art generally adopts whole opening prefabricated box beam or trough girder structure to set up as viaduct.Whole opening prefabricated girder construction 7, that a kind of ability by the lifting erection equipment is first whole opening prefabricated in precast yard, then by setting up hanging device whole opening prefabricated girder construction 7 is installed on the pier, if beam structure, pouring concrete connects after then adopting, treat that it solidifies formation connecting portion 8, becomes complete viaduct.
The shortcoming of whole opening prefabricated girder construction comprises:
(1) hoisting transportation equipment requirement tonnage is larger, and needs the larger transhipment lifting means of tonnage.
(2) for the bridge of small curve radius circuit, as shown in Figure 3, the planar fold effect is obvious, and central lines of track 9 and bridge center line 10 depart from, and landscape effect is relatively poor, and compliance is relatively poor, and precast beam factory need be located near the bridge construction site, deposits the beam place large.
Box beam is compared with trough girder, the scale of construction is larger, be not easy transportation, install, and trough girder is on-the-spot when installing owing to requiring low to road clearance under the bridge, and the impact of the Noise upon Environment that produces when having reduced to a great extent train operation of trough girder structure, therefore, its application aspect urban rail transit construction is more and more extensive.
Summary of the invention
The utility model has overcome defective of the prior art, provides that a kind of convenient transportation, constructability are installed, construction costs is lower, becomes the good rail transit elevated bridge trough girder precast segment structure of bridge landscape effect.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Rail transit elevated bridge trough girder precast segment structure comprises a plurality of trough girder sections of mutual splicing, the web that each trough girder sections includes base plate and extends upward respectively setting along the both sides of base plate.
Further, be provided with three linear theoretical control points on the plane at two splicing end face places of each trough girder sections, the horizontal control point that comprises respectively base plate end face longitudinal centre line and plate upper surface intersection point place, and two vertical control points at two web end face center lines and web end face intersection point place; Three linear theoretical control points of the front splicing end face of a rear trough girder sections align with three linear theoretical control points of the rear splicing end face of previous trough girder sections respectively.
Further, the bottom surface of each trough girder sections is provided with hole for hoist.
Further
,Hole for hoist is symmetric with respect to the center line of bottom surface.
Further
,The both sides on web top are equipped with the boss of protrusion.
Further
,The boss and the web that protrude are one-body molded.
Further, each trough girder sections is 2m to 3m along the length on the pontic length direction.
Compared with prior art, the beneficial effects of the utility model are:
Because viaduct trough girder body is prefabricated into a plurality of trough girder sections, therefore, each trough girder sections is compared lightweight with whole opening prefabricated trough girder, the hoisting transportation equipment tonnage is required little, so that trough girder convenient transportation, the job site support is set up less, and floor space is little, and is little to the ground traffic impact; And the trough girder sections all produces in precast yard, can effectively control the quality of production of beam body, and work progress is little on the impact of environment, becomes the bridge landscape effect good; But moreover the prefabricated mould Reusability so that manufacturing equipment expense amortization rate is high, construction costs is lower.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, is used from explanation the utility model with embodiment one of the present utility model, does not consist of to restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the structural representation of rail transit elevated bridge trough girder precast segment structure.
Fig. 2 is the rail transit elevated bridge trough girder precast segment structural group assembling structure schematic diagram of multi-segmental.
Fig. 3 is the planar fold effect schematic diagram after whole opening prefabricated knot consists of bridge.
Fig. 4 is the plane effect schematic diagram by the utility model precast segment Cheng Qiaohou.
Include among Fig. 1 to Fig. 4 with lower member:
1---base plate,
2---web,
3---vertical control point,
4---horizontal control point,
5---hole for hoist,
6---the trough girder sections,
7---whole opening prefabricated girder construction,
8---connecting portion,
9---central lines of track,
10---the bridge center line.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
Rail transit elevated bridge trough girder precast segment structure of the present utility model as shown in Figure 1 and Figure 2, comprises a plurality of trough girder sections 6 of mutual splicing, the web 2 that each trough girder sections 6 includes base plate 1 and extends upward respectively setting along the both sides of base plate 1.
Because viaduct trough girder body is prefabricated into several trough girder sections 6, each trough girder sections 6 weight is lighter, the hoisting transportation equipment tonnage is required little, so that trough girder convenient transportation, the job site support is set up minimizing, and floor space is little, and is little to the ground traffic impact.
And trough girder sections 6 all produces in precast yard, can effectively control the quality of production of beam body, and work progress is little on the impact of environment; But moreover the prefabricated mould Reusability so that manufacturing equipment expense amortization rate is high, construction costs is lower.
Be provided with three linear theoretical control points on the plane at two splicing end face places of each trough girder sections 6, comprise respectively the horizontal control point 4 at base plate 1 end face longitudinal centre line and base plate 1 upper surface intersection point place, and the vertical control point 3 that is arranged at two web end face center lines and web end face intersection point place; Three linear theoretical control points of the front splicing end face of a rear trough girder sections 6 align with three linear theoretical control points of the rear splicing end face of previous trough girder sections 6 respectively.
Specific practice is that when precast yard's prefabricated grooved girder segment 6, the first step is used the prefabricated initial trough girder sections 6 of mould; Second step, initial trough girder sections 6 outer moving are as matching segment; The 3rd step, keep mould motionless, adjust the locus of matching segment, matching segment can be complementary with next trough girder sections 6, as shown in Figure 1, each trough girder sections 6 both ends of the surface is respectively established three linear theoretical control points during coupling, horizontal control point 4 base plates 1 that specifically comprise base plate 1 end face longitudinal centre line and base plate 1 upper surface intersection point place, and two vertical control points 3 at two webs, 2 end face center lines and web 2 end face intersection point places, when horizontal control point 4 of an end face of matching segment and two vertical control points 3 are complementary with a horizontal control point 4 and two vertical control points 3 of an end face of next trough girder sections 6 moulds respectively, then matching segment 6 is complementary with next trough girder sections 6 moulds; The 4th step, the next trough girder sections 6 that coupling is finished in prefabricated the 3rd step, and with next trough girder sections 6 called after matching segments; In the 5th step, return second step, until required trough girder sections 6 whole prefabricated finishing.
Viaduct trough girder body is prefabricated into several trough girder sections 6, and at each trough girder sections 6 former and later two end face linear theoretical control point is set, as shown in Figure 4, particularly for the bridge of small curve radius circuit, central lines of track and bridge central lines, make into bridge and have that the lines flow smoothly, the characteristics that landscape effect is good.
The bottom surface of each trough girder sections 6 is provided with hole for hoist 5.Make things convenient for trough girder sections 6 movement, transport and set up installation.
Hole for hoist 5 is symmetric with respect to the center line of bottom surface.Make trough girder sections 6 moving, transport and set up the stress equilibrium dispersion that is subject to when installing, prevent trough girder sections 6 injuries.
The both sides on web 2 tops are equipped with the boss of protrusion.Improve the lateral rigidity of web 2.The boss and the web that protrude are one-body molded.One-body molded with mould when prefabricated.
Each trough girder sections 6 is 2m to 3m along the length on the pontic length direction.Choosing through repeatedly putting into practice and testing of this length draws, hanging device when considering haulage device, bridge erection, prefabricated mould and become bridge the lines flow smoothly degree and the aspect situation such as landscape effect, trough girder sections 6 optimal length.
It should be noted that at last: above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (7)
1. rail transit elevated bridge trough girder precast segment structure is characterized in that, comprises a plurality of trough girder sections of mutual splicing, the web that each described trough girder sections includes base plate and extends upward respectively setting along the both sides of base plate.
2. rail transit elevated bridge trough girder precast segment structure according to claim 1, it is characterized in that: be provided with three linear theoretical control points on the plane at two splicing end face places of each described trough girder sections, the horizontal control point that comprises respectively base plate end face longitudinal centre line and plate upper surface intersection point place, and two vertical control points at two web end face center lines and web end face intersection point place; Three linear theoretical control points of the front splicing end face of a rear described trough girder sections align with three linear theoretical control points of the rear splicing end face of previous described trough girder sections respectively.
3. rail transit elevated bridge trough girder precast segment structure according to claim 1, it is characterized in that: the bottom surface of each described trough girder sections is provided with hole for hoist.
4. rail transit elevated bridge trough girder precast segment structure according to claim 3, it is characterized in that: described hole for hoist is symmetric with respect to the center line of described bottom surface.
5. rail transit elevated bridge trough girder precast segment structure according to claim 1, it is characterized in that: the both sides on described web top are equipped with the boss of protrusion.
6. rail transit elevated bridge trough girder precast segment structure according to claim 5, it is characterized in that: the boss of described protrusion and described web are one-body molded.
7. rail transit elevated bridge trough girder precast segment structure according to claim 1, it is characterized in that: each described trough girder sections is 2m to 3m along the length on the pontic length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304569 CN202730634U (en) | 2012-06-27 | 2012-06-27 | Viaduct channel girder segment prefabricated structure for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220304569 CN202730634U (en) | 2012-06-27 | 2012-06-27 | Viaduct channel girder segment prefabricated structure for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202730634U true CN202730634U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220304569 Expired - Lifetime CN202730634U (en) | 2012-06-27 | 2012-06-27 | Viaduct channel girder segment prefabricated structure for rail transit |
Country Status (1)
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| CN (1) | CN202730634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636285A (en) * | 2020-07-17 | 2020-09-08 | 石家庄铁道大学 | Low-height groove-shaped steel-concrete composite beam |
-
2012
- 2012-06-27 CN CN 201220304569 patent/CN202730634U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636285A (en) * | 2020-07-17 | 2020-09-08 | 石家庄铁道大学 | Low-height groove-shaped steel-concrete composite beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 510220 self compiled 239A room, 2 floor, seven tower, Hongtai wisdom Valley, 23 Tianhe District Si Cheng Road, Tianhe District, Guangzhou. Patentee after: Hanyang International Engineering Consulting Co.,Ltd. Address before: Tianhe Road 510620 Guangdong city of Guangzhou province Tianhe District No. 228 building room 2206 Guangzhou Han Yang Engineering Consulting Co. Ltd. Patentee before: Guangzhou Hanyang Engineering Consulting Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |