CN202559225U - Single-pylon double-cable-plane cable-stayed bridge without backstays - Google Patents
Single-pylon double-cable-plane cable-stayed bridge without backstays Download PDFInfo
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- CN202559225U CN202559225U CN 201220195223 CN201220195223U CN202559225U CN 202559225 U CN202559225 U CN 202559225U CN 201220195223 CN201220195223 CN 201220195223 CN 201220195223 U CN201220195223 U CN 201220195223U CN 202559225 U CN202559225 U CN 202559225U
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Abstract
The utility model discloses a single-pylon double-cable-plane cable-stayed bridge without backstays, belonging to the technical field of bridges. The single-pylon double-cable-plane cable-stayed bridge comprises bridge piers (4), a single pylon (1), a continuous beam (2) and stay cables (3) without the backstays, wherein the stay cables (3) without the backstays are used for connecting the single pylon (1) with the continuous beam (2). The single-pylon double-cable-plane cable-stayed bridge without the backstays is characterized in that the single pylon (1) is of a reinforced concrete structure, the continuous beam is an integral pre-stressed concrete continuous box beam and is of a single-box six-chamber structure, a connection part between the single pylon (1) and the continuous beam (2) is of a rigid connection structure, and the continuous beam (2) and each bridge pier (4) are of a pier and beam separation structure. The novel single-pylon double-cable-plane cable-stayed bridge without the backstays provided by the utility model keeps the structure of the conventional single-pylon double-cable-plane cable-stayed bridge without backstays and also realizes the breakthrough of the width of the bridge in a structural system, wherein the maximum width of the bridge can be up to 45m, and thus the traffic capability of the bridge engineering can be largely improved.
Description
Technical field
The utility model relates to a kind of novel bridge construction form, and the two rope face back-cable-free cable-stayed bridges of the ultra wide only tower of particularly a kind of width belong to the bridge technology field.
Background technology
Both at home and abroad the bridge on the arterial traffic mostly is designed to the view bridge in the city, like arch bridge, cable stayed bridge, suspension bridge, suspension bridge or the like, and the form that in cable stayed bridge, adopts the most attractive in appearance be no dorsal funciculus pair rope face leaning tower bridges.This kind bridge construction form just is applied in the Urban Bridge design by increasing.At present; The development of each side such as back-cable-free cable-stayed bridge is just big towards span, leaning tower is high, gradient is big, view picture beam face width; But be limited to the restriction of this special cable stayed bridge structure of no dorsal funciculus and continuous beam concrete property, this kind bridge construction form is being striden the footpath greatly, is being restricted aspect the bridge width.The type cable stayed bridge adopts all fixed connected mode of tower, beam, pier more in the prior art, and this kind connected mode causes the beam body width can not be too big, and the internal force that the big more concrete shrinkage and creep of beam body width, variations in temperature etc. cause is big more.At present this kind bridge construction form is the wideest on width can only reach 32m, big limitations the traffic capacity of bridge.
Summary of the invention
To the above-mentioned defective that exists in the prior art; The utility model provides a kind of new only tower two rope face back-cable-free cable-stayed bridges; It has realized the breakthrough of bridge width in the structural system when keeping the two rope face back-cable-free cable-stayed bridge structures of only tower, can improve the traffic capacity of bridge engineering greatly.
The utility model is realized through following technical scheme: the two rope face back-cable-free cable-stayed bridges of a kind of only tower; The no dorsal funciculus drag-line that comprises only tower, continuous beam, the said only tower of connection and continuous beam; Its special character is; Said only tower is a reinforced concrete structure, and said continuous beam is the whole prestressed concrete continuous box girder of a width of cloth, and said continuous beam is single case six cell structures; The junction of said only tower and said continuous beam is the structure that is rigidly connected, and adopts pier, beam isolating construction between said continuous beam and the bridge pier.
The utility model is designed to the structure that is rigidly connected through the junction with only tower and view picture continuous beam; Make only tower and continuous beam form overall structure; Itself and the no dorsal funciculus drag-line that tiltedly is pulled between only tower and the continuous beam form whole stress system, and through with Continuous beam design being the torsional property that single case six cell structures have improved the beam body.And the internal force that causes owing to the big more concrete shrinkage and creep of beam body width, variations in temperature etc. is big more; The utility model adopts pier, beam isolating construction; Make Liang Tiben when little variation, can move freely, weakened internal force, reduced the probability that concrete produces shrinkage crack, thermal cracking.These technological means have improved the holistic resistant behavior of beam body greatly, make continuous beam on the view picture width, can access breakthrough, and beam body width can be increased greatly.
In the utility model, the width of said continuous beam is 39m-45m.
In the utility model, said only tower and said continuous beam are one in its junction through concreting.
In order further to improve the overall performance of beam body, the utility model is provided with the multiple tracks diaphragm in the main span span centre position of said continuous beam, and said diaphragm is equipped with the transverse prestress system.The diaphragm that is provided with can improve the bending resistance of beam body greatly, improves the overall performance of beam body.
Said diaphragm is set to 8 roads, and the per pass spacing is 8m, and the both sides of per pass diaphragm are provided with suspension cable anchor cable district.The Suo Li that is arranged so that of diaphragm and transverse prestress acts on whole beam body, has improved the overall performance of beam body simultaneously greatly.
The beneficial effect of the utility model is: the utility model is simple in structure; Bearing capacity is big, and it is designed to the structure that is rigidly connected through the junction with only tower and view picture prestressed concrete continuous beam, makes only tower, continuous beam, no dorsal funciculus drag-line form whole stress system; Improved the holistic resistant behavior of beam body greatly; And, improved the torsional property of beam body through being single case six cell structures with Continuous beam design, further improved the overall performance of beam body; In addition,, make Liang Tiben when little variations, can move freely, weakened internal force, reduced the probability of concrete generation shrinkage crack, thermal cracking through adopting pier, beam isolating construction.The utility model passes through reasonable structural design; Make continuous beam on the view picture width, can reach bigger width; Solved the technical barrier of non-cable single-tower stayed bridge bridge floor beam body restricted width in the prior art; Realize two-way eight tracks of local plan, solved main trunk road bridge traffic blocking problem; Secondly,, in the planning and designing of bridge, can realize two original cable stayed bridges merging are designed to one, can save cost greatly, help reducing construction costs because beam body width can be made the design of broad.The utility model is handsome in appearance, and the power sense is strong, gives unique visual experience.
Description of drawings
Fig. 1 is the main TV structure sketch map in the utility model specific embodiment;
Fig. 2 is the schematic top plan view of Fig. 1;
Stride the structural representation in girder cross section among Fig. 3 Fig. 1;
Fig. 4 is that sketch map is looked on the left side of Fig. 1;
Fig. 5 is the structural representation of partly overlooking He partly looking up of Fig. 1 middle girder;
Among the figure, 1, Du Ta, 2, continuous beam, 3, no dorsal funciculus drag-line, 4, bridge pier, 5, diaphragm.
The specific embodiment
Below in conjunction with accompanying drawing and non-limiting embodiment the utility model is further described:
Shown in accompanying drawing 1-5, the two rope face back-cable-free cable-stayed bridges of a kind of only tower comprise bridge pier 4, only tower 1, continuous beam 2, no dorsal funciculus drag-line 3.Solely tower 1 tiltedly draws through no dorsal funciculus drag-line 3 with continuous beam 2 and is connected.Solely tower 1 is a reinforced concrete structure, and its 30 degree angles that tilt highly are 61.5m.Continuous beam 2 is the ultra wide prestressed concrete continuous box girder of a view picture, is single case six cell structures, and the width of continuous beam 2 is 39m-45m, and the widest part reaches 45m, and bridge floor is designed to two-way eight tracks and the non-mixed trade of two-way people.Solely tower 1 is as a whole by concreting with continuous beam 2.Continuous beam 2 adopts pier, beam isolating construction with bridge pier 4, is provided with freely movable bearing between pier, the beam, and Liang Tiben can move freely when little variation.In order to strengthen the bending resistance of continuous beam beam body, the utility model is provided with some roads diaphragm 5 at the moment of flexure larger part of continuous beam 2, and all diaphragms 5 are equipped with the transverse prestress system.In the present embodiment, diaphragm 5 is arranged on main span span centre position, and 8 road diaphragms 5 are set altogether; Per pass diaphragm 5 spacing 8m; The width of diaphragm 5 is 40cm, and per pass diaphragm 5 both sides are provided with suspension cable anchor cable district, like this; The Suo Li that is arranged so that of diaphragm and transverse prestress acts on whole beam body, has improved the overall performance of beam body greatly.Continuous beam 2 has improved the overall performance of beam body effectively through designing prestress system in length and breadth.The utility model when construction be by design segmentation cast-in-place construction, and main bridge adopts the job practices of tower behind the first beam, and solely tower adopts the limit to hang the cast-in-place obliquely method construction in rope limit until binding.
Other parts of present embodiment adopt prior art, repeat no more at this.
The utility model is through rational beam body design; Realized the new breakthrough of non-cable single-tower stayed bridge bridge floor beam body width; Beam body width is wideer than the beam body width of the non-cable single-tower stayed bridge of prior art, has realized two-way eight tracks of local plan, has solved main trunk road bridge traffic blocking problem; And it has the graceful moulding of non-cable single-tower stayed bridge, for the city increases beautiful view.
Claims (5)
1. two rope face back-cable-free cable-stayed bridges of an only tower; The no dorsal funciculus drag-line (3) that comprises bridge pier (4), only tower (1), continuous beam (2), connection said only tower (1) and continuous beam (2); It is characterized in that: said only tower (1) is a reinforced concrete structure; Said continuous beam (2) is the whole prestressed concrete continuous box girder of a width of cloth; Said continuous beam (2) is single case six cell structures, and said only tower (1) is the structure that is rigidly connected with the junction of said continuous beam (2), adopts pier, beam isolating construction between said continuous beam (2) and the bridge pier (4).
2. the two rope face back-cable-free cable-stayed bridges of only tower according to claim 1, it is characterized in that: the width of said continuous beam (2) is 39m-45m.
3. the two rope face back-cable-free cable-stayed bridges of only tower according to claim 1 is characterized in that: said only tower (1) is one in its junction through concreting with said continuous beam (2).
4. according to claim 1 or the two rope face back-cable-free cable-stayed bridges of 2 or 3 described only towers, it is characterized in that: the main span span centre position at said continuous beam (2) is provided with multiple tracks diaphragm (5), and said diaphragm (5) is equipped with the transverse prestress system.
5. the two rope face back-cable-free cable-stayed bridges of only tower according to claim 4, it is characterized in that: said diaphragm (5) is set to 8 roads, and the per pass spacing is 8m, and the both sides of per pass diaphragm (5) are provided with suspension cable anchor cable district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195223 CN202559225U (en) | 2012-05-03 | 2012-05-03 | Single-pylon double-cable-plane cable-stayed bridge without backstays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220195223 CN202559225U (en) | 2012-05-03 | 2012-05-03 | Single-pylon double-cable-plane cable-stayed bridge without backstays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202559225U true CN202559225U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220195223 Expired - Fee Related CN202559225U (en) | 2012-05-03 | 2012-05-03 | Single-pylon double-cable-plane cable-stayed bridge without backstays |
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| CN (1) | CN202559225U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644238A (en) * | 2012-05-03 | 2012-08-22 | 中铁十局集团有限公司 | Back-cable-free cable-stayed bridge with single pylon and double cable surfaces |
| CN103726423A (en) * | 2014-01-17 | 2014-04-16 | 鲁正祥 | Cable-stayed dual-energy Ferris road for streets and alleyways |
| CN105926448A (en) * | 2016-05-03 | 2016-09-07 | 中交第三航务工程局有限公司 | Construction method for cable-stayed bridge main tower with curve single tower double cable planes |
-
2012
- 2012-05-03 CN CN 201220195223 patent/CN202559225U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644238A (en) * | 2012-05-03 | 2012-08-22 | 中铁十局集团有限公司 | Back-cable-free cable-stayed bridge with single pylon and double cable surfaces |
| CN103726423A (en) * | 2014-01-17 | 2014-04-16 | 鲁正祥 | Cable-stayed dual-energy Ferris road for streets and alleyways |
| CN105926448A (en) * | 2016-05-03 | 2016-09-07 | 中交第三航务工程局有限公司 | Construction method for cable-stayed bridge main tower with curve single tower double cable planes |
| CN105926448B (en) * | 2016-05-03 | 2017-05-31 | 中交第三航务工程局有限公司 | A kind of construction method of the Cable stayed Bridge Main Tower in the double rope faces of the only tower of curve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150503 |
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| EXPY | Termination of patent right or utility model |