CN208038992U - A kind of composite structure overpass of Midspan sag - Google Patents
A kind of composite structure overpass of Midspan sag Download PDFInfo
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- CN208038992U CN208038992U CN201820126498.XU CN201820126498U CN208038992U CN 208038992 U CN208038992 U CN 208038992U CN 201820126498 U CN201820126498 U CN 201820126498U CN 208038992 U CN208038992 U CN 208038992U
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- steel pipe
- bridge pier
- composite structure
- thick steel
- precast slab
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Abstract
The utility model is related to a kind of composite structure overpasses of Midspan sag, including the bridge pier of longitudinal arrangement and the precast slab above bridge pier, and existing railway is between adjacent bridge pier；The steel pipe frame being made of longitudinal thick steel pipe and lateral connection steel pipe is fixed between bridge pier and precast slab.Steel pipe frame pushing tow is first passed through existing railway line by the utility model when constructing, then in steel pipe frame seat board prefabricated concrete slab installed above, eventually form bridge deck, structure simple structure, form of fracture novelty, reasonable stress, manufacture is succinct, easy construction, good economy performance, it is small on existing railway influence, solve interference problem of constructing above existing railway line.
Description
Technical field
The utility model belongs to bridge technology field, and in particular to a kind of composite structure overpass of Midspan sag.
Background technology
Existing overpass is mostly the multiple materials such as steel construction or concrete structure and the overpass of structure type.For
The processing and manufacturing of the overpass of steel construction, steel box section is complicated, and defect is more, and the plank beams rigidity of structure is less than normal；For coagulation
The overpass of soil structure is restricted in Midspan sag due to influencing big on existing railway.
With social progress and economic development, people increase the needs across existing railway, how to design a kind of processing
Brief introduction, reasonable stress are manufactured, overpass form easy for construction seems very necessary.
Invention content
The purpose of this utility model is to provide a kind of composite structure overpass of Midspan sag, can be the people of Midspan sag
Row overline bridge provide a kind of economical rationality, it is safe and reliable, be conducive to the new structure form that construction is set up.
Technical solution used by the utility model is：
A kind of composite structure overpass of Midspan sag, it is characterised in that：
Precast slab above bridge pier and bridge pier including longitudinal arrangement, existing railway is between adjacent bridge pier；
The steel pipe frame being made of longitudinal thick steel pipe and lateral connection steel pipe is fixed between bridge pier and precast slab.
The lateral network triangular in shape of steel pipe frame.
Steel pipe frame is section form wide at the top and narrow at the bottom.
Steel pipe frame includes three parallel longitudinal thick steel pipes, is set in upper and lower two layers of cloth, two, upper layer, and lower layer one is adjacent
Lateral connection steel pipe is welded to connect between longitudinal thick steel pipe.
The longitudinal thick steel pipe of two of upper layer is mutually fixed with the precast slab of top and the bridge pier of lower section；
The WELDING STUDS that top is embedded in by upper base plate and in advance in precast slab is fixed, and lower section is fixed by lower seat board 6.
The longitudinal thick steel pipe of one of lower layer is located in the groove of top of bridge pier Middle face.
Steel pipe frame includes five parallel longitudinal thick steel pipes, is set in upper and lower two layers of cloth, three, upper layer, and lower layer two is adjacent
Lateral connection steel pipe is welded to connect between longitudinal thick steel pipe.
The longitudinal thick steel pipe of two of upper layer both sides is mutually fixed with the precast slab of top and the bridge pier of lower section；Top
The WELDING STUDS being embedded in precast slab by upper base plate and in advance is fixed, and lower section passes through lower seat board 6 and fixes；
The precast slab of a longitudinal thick steel pipe and top among upper layer is embedded in prefabricated mixed by upper base plate and in advance
WELDING STUDS in concrete board is fixed.
The longitudinal thick steel pipe of two of lower layer is located in the groove of top of bridge pier Middle face.
Longitudinal crude steel pipe diameter in steel pipe frame is more than lateral connection diameter of steel tube, longitudinal thick steel pipe and lateral connection steel pipe
For round or rectangular section steel pipe.
The utility model has the following advantages：
The overpass section of the utility model is made of three round steel pipes and precast slab, with existing overpass
It compares：
（1）Form of fracture is simple, directly fished pipe can be utilized to fabricate, reduce and processed since steel box section is small
Disadvantage more than manufacture difficulty, manufacturing defect, has been effectively ensured architecture quality；
（2）The structure type combined with precast slab using steel pipe, reasonable stress can be reduced effectively compared to steel construction
Project cost is greatly light and handy compared to the size of concrete structure；
（3）Structure has larger rigidity, particularly convenient incremental launching construction, to existing railway under bridge when effectively reducing construction
The interference of normal operation, construction safety are reliable.
Description of the drawings
Fig. 1 is the overpass cross-sectional view of embodiment 1.
Fig. 2 is the overpass cross-sectional view of embodiment 2.
Fig. 3 is overpass elevation.
In figure, the longitudinal directions 1- thick steel pipe, 2- lateral connection steel pipes, 3- upper base plates, 4- WELDING STUDSs, 5- precast slabs, 6-
Lower seat board, 7- bridge piers, 8- railings, 9- existing railway track clearances.
Specific implementation mode
The utility model is described in detail With reference to embodiment.
The utility model is related to a kind of composite structure overpass of new structural Midspan sag, including longitudinal arrangement
The precast slab 5 of 7 top of bridge pier 7 and bridge pier, existing railway is between adjacent bridge pier 7.5 top peace of precast slab
Equipped with pedestrian guardrail 8.
The steel pipe being made of longitudinal thick steel pipe 1 and lateral connection steel pipe 2 is fixed between bridge pier 7 and precast slab 5
Frame.The quantity of longitudinal thick steel pipe 1 is 2 ~ 5.Steel pipe frame is section form wide at the top and narrow at the bottom, laterally network triangular in shape.
Can jack be set by one end, no steel construction part for being laid with precast slab 5 is applied into top on longitudinal thick steel pipe 1
Thrust, pushing tow is in place.
According to different spans and stress demand, the quantity and shape of section thick steel pipe 1 can be adjusted flexibly, such as：
Embodiment 1：Referring to Fig. 1, steel pipe frame includes three parallel longitudinal thick steel pipes 1, is set in upper and lower two layers of cloth, upper layer two
Root, lower layer one are welded to connect lateral connection steel pipe 2 between adjacent longitudinal direction thick steel pipe 1.The longitudinal thick steel pipe 1 of two of upper layer is equal
It is fixed with the precast slab 5 of top and 7 phase of bridge pier of lower section；Top is embedded in precast slab 5 by upper base plate 3 and in advance
Interior WELDING STUDS 4 is fixed, and lower section is fixed by lower seat board 6.The longitudinal thick steel pipe 1 of one of lower layer is located in the middle part of 7 top surface of bridge pier
In groove.
Embodiment 2：Referring to Fig. 2：Steel pipe frame includes five parallel longitudinal thick steel pipes 1, is set in upper and lower two layers of cloth, upper layer three
Root, lower layer two are welded to connect lateral connection steel pipe 2 between adjacent longitudinal direction thick steel pipe 1.The longitudinal thick steel pipe of two of upper layer both sides
1 fixes with the precast slab of top 5 and 7 phase of the bridge pier of lower section；Top is embedded in precast concrete by upper base plate 3 and in advance
WELDING STUDS 4 in plate 5 is fixed, and lower section is fixed by lower seat board 6；One among upper layer longitudinal thick steel pipe 1 is prefabricated with top
Concrete slab 5 is fixed by upper base plate 3 and the WELDING STUDS being embedded in advance in precast slab 54.The longitudinal thick steel pipe of two of lower layer
1 is located in the groove in the middle part of 7 top surface of bridge pier.
Upper base plate 3 and lower seat board 6 are welded to connect with longitudinal thick steel pipe 1, and upper base plate 3 is welded to connect with WELDING STUDS 4, longitudinal thick
Steel pipe 1 is welded to connect with lateral connection steel pipe 2.
1 diameter of longitudinal thick steel pipe in steel pipe frame is more than 2 diameter of lateral connection steel pipe, longitudinal thick steel pipe 1 and lateral connection
Steel pipe 2 is round or rectangular section steel pipe.
Jack is acted on longitudinal thick steel pipe 1, is applied by the way that counterforce device is arranged in bridge side by the utility model
Jacking force, in place by the steel pipe frame part pushing tow of overpass.Steel pipe frame pushing tow in place after, start lifting set up bridge deck it is prefabricated
Concrete slab 5 finally pours wet joint position, forms bridge deck.
When the utility model is constructed, first by steel pipe frame pushing tow by existing railway line, then pacify on steel pipe frame seat board
Prefabricated concrete slab is filled, bridge deck is eventually formed, structure simple structure, form of fracture is novel, reasonable stress, and manufacture is succinct,
Easy construction, good economy performance is small on existing railway influence, solves interference problem of constructing above existing railway line.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
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 (10)
1. a kind of composite structure overpass of Midspan sag, it is characterised in that：
Bridge pier including longitudinal arrangement（7）And bridge pier（7）The precast slab of top（5）, existing railway is located at adjacent bridge pier
（7）Between；
Bridge pier（7）And precast slab（5）Between be fixed with by longitudinal thick steel pipe（1）With lateral connection steel pipe（2）Composition
Steel pipe frame.
2. a kind of composite structure overpass of Midspan sag according to claim 1, it is characterised in that：
The lateral network triangular in shape of steel pipe frame.
3. a kind of composite structure overpass of Midspan sag according to claim 1, it is characterised in that：
Steel pipe frame is section form wide at the top and narrow at the bottom.
4. a kind of composite structure overpass of Midspan sag according to claim 1, it is characterised in that：
Steel pipe frame includes three parallel longitudinal thick steel pipes（1）, it is set in upper and lower two layers of cloth, two, upper layer, lower layer one, it is adjacent vertical
To thick steel pipe（1）Between be welded to connect lateral connection steel pipe（2）.
5. a kind of composite structure overpass of Midspan sag according to claim 4, it is characterised in that：
The longitudinal thick steel pipe of two of upper layer（1）With the precast slab of top（5）With the bridge pier of lower section（7）It is mutually fixed；
Top passes through upper base plate（3）Be embedded in precast slab in advance（5）Interior WELDING STUDS（4）Fixed, lower section passes through lower seat board
（6）It is fixed.
6. a kind of composite structure overpass of Midspan sag according to claim 4, it is characterised in that：
The longitudinal thick steel pipe of one of lower layer（1）Positioned at bridge pier（7）In groove in the middle part of top surface.
7. a kind of composite structure overpass of Midspan sag according to claim 1, it is characterised in that：
Steel pipe frame includes five parallel longitudinal thick steel pipes（1）, it is set in upper and lower two layers of cloth, three, upper layer, lower layer two, it is adjacent vertical
To thick steel pipe（1）Between be welded to connect lateral connection steel pipe（2）.
8. a kind of composite structure overpass of Midspan sag according to claim 7, it is characterised in that：
The longitudinal thick steel pipe of two of upper layer both sides（1）With the precast slab of top（5）With the bridge pier of lower section（7）Xiang Gu
It is fixed；Top passes through upper base plate（3）Be embedded in precast slab in advance（5）Interior WELDING STUDS（4）Fixed, lower section passes through lower seat board
（6）It is fixed；
A longitudinal thick steel pipe among upper layer（1）With the precast slab of top（5）Pass through upper base plate（3）It is embedded in advance pre-
Concrete slab processed（5）Interior WELDING STUDS（4）It is fixed.
9. a kind of composite structure overpass of Midspan sag according to claim 7, it is characterised in that：
The longitudinal thick steel pipe of two of lower layer（1）Positioned at bridge pier（7）In groove in the middle part of top surface.
10. a kind of composite structure overpass of Midspan sag according to claim 1, it is characterised in that：
Longitudinal thick steel pipe in steel pipe frame（1）Diameter is more than lateral connection steel pipe（2）Diameter, longitudinal thick steel pipe（1）Connect with lateral
Connect steel pipe（2）For round or rectangular section steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820126498.XU CN208038992U (en) | 2018-01-25 | 2018-01-25 | A kind of composite structure overpass of Midspan sag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820126498.XU CN208038992U (en) | 2018-01-25 | 2018-01-25 | A kind of composite structure overpass of Midspan sag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208038992U true CN208038992U (en) | 2018-11-02 |
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| CN201820126498.XU Active CN208038992U (en) | 2018-01-25 | 2018-01-25 | A kind of composite structure overpass of Midspan sag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049301A (en) * | 2018-01-25 | 2018-05-18 | 中铁第勘察设计院集团有限公司 | The combining structure overpass of Midspan sag |
-
2018
- 2018-01-25 CN CN201820126498.XU patent/CN208038992U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049301A (en) * | 2018-01-25 | 2018-05-18 | 中铁第勘察设计院集团有限公司 | The combining structure overpass of Midspan sag |
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