CN204151676U - A kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon - Google Patents
A kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon Download PDFInfo
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- CN204151676U CN204151676U CN201420597771.9U CN201420597771U CN204151676U CN 204151676 U CN204151676 U CN 204151676U CN 201420597771 U CN201420597771 U CN 201420597771U CN 204151676 U CN204151676 U CN 204151676U
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- box hat
- concrete
- pylon
- endosternum
- prestressing force
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Abstract
The utility model discloses a kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon, comprise outer box hat and the box hat being positioned at outer box hat inside, the cast inner chamber of annular is formed between interior box hat and outer box hat, be connected with some to endosternum parallel to each other between the outer wall of interior box hat and the inwall of outer box hat, each described endosternum is all longitudinally arranged, and described cast inner chamber is divided into multiple points of chambeies, all just to offering some first through holes on often pair of endosternum, often pair of endosternum is by being horizontally through the first bar connecting of described first through hole, filling concrete in each described point chamber.The utility model adopts the steel-concrete combined structure of concrete pylon outsourcing box hat, have superiority in box hat lifting location, concreting etc., one be interior box hat and outer box hat as the construction formwork of Qu Tazhu, enormously simplify the manufacture and installation of template, improve lifting positioning precision; Two is interior box hat and outer box hat and inner concrete coaction, improves integral rigidity and the intensity of Sarasota.
Description
Technical field
The utility model is used for bridge construction engineering field, particularly relates to a kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon.
Background technology
Be established in Spain Alamillo bridge without dorsal funciculus single pylon cable stayed bridge, be characterized in utilizing Sarasota to tilt, do not establish dorsal funciculus, outstanding aesthstic effect, has broken traditional Design of Cable-Stayed Bridge theory thus.Leaning tower is without dorsal funciculus structure, and be exactly in fact the force transfer system utilizing the bridge tower of inclination deadweight effect to balance a kind of uniqueness of girder vertical load effect, therefore, the design of Sarasota seems particularly important to the type bridge.
Although without dorsal funciculus Cable-stayed Bridge with Slanted Pylon built more than 10 seats both at home and abroad, bridge tower transverse direction and girder are longitudinally linear substantially, and it is the situation of straight line that linear pattern Sarasota is generally only suitable for bridge main beam, if bent main beam structure, then Sarasota also needs to be designed to shaped form structure.For shaped form Sarasota, adopt prestressed reinforced concrete structure, then the difficulty of construction such as processing, installation, location of template increases.
Utility model content
For solving the problem, the utility model provides the prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon that a kind of difficulty of construction is little, improve Sarasota integral rigidity and intensity.
The utility model solves the technical scheme that its technical problem adopts: a kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon, comprise outer box hat and the box hat being positioned at described outer box hat inside, the cast inner chamber of annular is formed between described interior box hat and outer box hat, be connected with some to endosternum parallel to each other between the outer wall of described interior box hat and the inwall of outer box hat, each described endosternum is all longitudinally arranged, and described cast inner chamber is divided into multiple points of chambeies, all just to offering some first through holes on often pair of endosternum, often pair of endosternum is by being horizontally through the first bar connecting of described first through hole, filling concrete in each described point chamber.
Be further used as the improvement of technical solutions of the utility model, the outer wall of interior box hat, the inwall of outer box hat and the both sides of endosternum are equipped with some longitudinal stiffening ribs.
Be further used as the improvement of technical solutions of the utility model, the inwall in each described point chamber is provided with some annular diaphragms longitudinally distributed, be provided with some second through holes along each described annular diaphragm, be provided with some the second reinforcing bars longitudinally arranged through the second through hole on described annular diaphragm.
Be further used as the improvement of technical solutions of the utility model, longitudinally stretch-draw prestressing force steel bundle in the concrete in each described point of chamber.
Be further used as the improvement of technical solutions of the utility model, the outer wall of described outer box hat is equipped with and connects and the steel anchor box of stretch-draw drag-line.
Be further used as the improvement of technical solutions of the utility model, described concrete is microdilatancy concrete.
The beneficial effects of the utility model: the utility model adopts the steel-concrete combined structure of concrete pylon outsourcing box hat, have superiority in box hat lifting location, concreting etc., one is interior box hat and the outer box hat construction formwork as Qu Tazhu, enormously simplify the manufacture and installation of template, improve lifting positioning precision; Two is interior box hat and outer box hat and inner concrete coaction, improves integral rigidity and the intensity of Sarasota.Meanwhile, the PBL Shear connection key formed by endosternum and the first reinforcing bar ensure that interior box hat, outer box hat are connected with reliable between concrete filled, and in addition, the prestressed strand of stretch-draw can effectively be passed to whole cross section, improves the stress performance of structure.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model embodiment outer box hat, interior box hat and endosternum syndeton schematic diagram;
Fig. 2 is the utility model embodiment outer box hat, interior box hat, endosternum and diaphragm syndeton schematic diagram;
Fig. 3 is that the outside steel anchor box of the outer box hat of the utility model embodiment connects stayed structure schematic diagram.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, the utility model provides a kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon, comprise outer box hat 1 and the box hat 2 being positioned at described outer box hat 1 inside, the cast inner chamber of annular is formed between described interior box hat 2 and outer box hat 1, be connected with some to endosternum 3 parallel to each other between the outer wall of described interior box hat 2 and the inwall of outer box hat 1, each described endosternum 3 is all longitudinally arranged, and described cast inner chamber is divided into multiple points of chambeies 4, all just to offering some first through holes on often pair of endosternum 3, often pair of endosternum 3 is by being horizontally through the first bar connecting of described first through hole, filling microdilatancy concrete in each described point chamber 4, to form hollow Sarasota agent structure.The both sides of the outer wall of interior box hat 2, the inwall of outer box hat 1 and endosternum 3 are equipped with some longitudinal stiffening ribs 5, and stiffening rib 5 adopts I type band steel.For meet box hat construction rank and operation stage force request, the inwall in each described point chamber 4 is provided with some annular diaphragms 6 longitudinally distributed, the profile design convenient construction personnel of annular pass in and out operation, be provided with some second through holes 61 along each described annular diaphragm 6, be provided with some the second reinforcing bars longitudinally arranged through the second through hole 61 on described annular diaphragm 6.Circular arc Sarasota transverse bending moment is larger, longitudinally stretch-draw prestressing force steel bundle 7 in the microdilatancy concrete in each described point of chamber 4, just form prestressing force box hat concrete structure, prestressed strand 7 adopts two ends stretch-draw, one end is anchored at lower king-post strut by tooth plate, the other end is anchored at king-tower sections boundary, and prestressed strand 7 can eliminate bent tower transverse bending moment, and increases axle power.The outer wall of described outer box hat 1 is equipped with and connects and the steel anchor box 9 of stretch-draw drag-line 8.
Adopt the steel-concrete combined structure of concrete pylon outsourcing box hat, have superiority in box hat lifting location, concreting etc., wherein interior box hat 3 and outer box hat 2 mainly play two aspect effects: one is interior box hat 3 and outer box hat 2 construction formwork as Qu Suota, enormously simplify the manufacture and installation of template, improve lifting positioning precision; Two is interior box hat 2 and outer box hat 1 and inner concrete coaction, improves integral rigidity and the intensity of Sarasota.
Mechanical property in view of steel performance is not only subject to the impact of own material character, and has much relations with the type of attachment of bonding surface.Shear connection key ensures that Steel concrete forms the important means of overall stressed and compatible deformation jointly, and it mainly bears the longitudinal shear between Steel concrete, resists the centrifugation between concrete and box hat simultaneously.Traditional steel-shelled concrete structure generally adopts the mode of directly welding weldering nail on steel plate to meet the shearing resistance requirement of structure, and the weldering nail that the present invention adopts the endosternum 3 vertically arranged along tower to replace commonly using in the past, design and construction mainly contain following advantage:
Endosternum 3 in cast inner chamber forms PBL Shear connection key between interior box hat 2 and outer box hat 1, connection between abundant guarantee concrete and box hat, processing is simple, only the first through hole is set on endosternum 3, be convenient to sharp work, and the shear stiffness of PBL Shear connection key, intensity are higher, the way of through connection first reinforcing bar in often pair of endosternum 3 is taked to make supporting capacity obtain larger raising;
Corner welding line can be adopted to weld along endosternum 3 two sides, not need special welding equipment, reduce the difficulty of welding procedure, be conducive to improving construction quality;
The endosternum 3 of perforate is longitudinally arranged along Sarasota, plays the effect of vertical stiffening rib, can improve the rigidity of bridge tower;
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (6)
1. the prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon, it is characterized in that: comprise outer box hat and the box hat being positioned at described outer box hat inside, the cast inner chamber of annular is formed between described interior box hat and outer box hat, be connected with some to endosternum parallel to each other between the outer wall of described interior box hat and the inwall of outer box hat, each described endosternum is all longitudinally arranged, and described cast inner chamber is divided into multiple points of chambeies, all just to offering some first through holes on often pair of endosternum, often pair of endosternum is by being horizontally through the first bar connecting of described first through hole, filling concrete in each described point chamber.
2. the prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon according to claim 1, is characterized in that: the outer wall of described interior box hat, the inwall of outer box hat and the both sides of endosternum are equipped with some longitudinal stiffening ribs.
3. the prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon according to claim 1, it is characterized in that: the inwall in each described point chamber is provided with some annular diaphragms longitudinally distributed, be provided with some second through holes along each described annular diaphragm, be provided with some the second reinforcing bars longitudinally arranged through the second through hole on described annular diaphragm.
4. the prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon according to claim 1, is characterized in that: longitudinally stretch-draw prestressing force steel bundle in the concrete in each described point chamber.
5. the prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon according to claim 1, is characterized in that: the outer wall of described outer box hat is equipped with and connects and the steel anchor box of stretch-draw drag-line.
6. the prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon according to claim 1, is characterized in that: described concrete is microdilatancy concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597771.9U CN204151676U (en) | 2014-10-15 | 2014-10-15 | A kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597771.9U CN204151676U (en) | 2014-10-15 | 2014-10-15 | A kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151676U true CN204151676U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420597771.9U Expired - Fee Related CN204151676U (en) | 2014-10-15 | 2014-10-15 | A kind of prestressing force box hat concrete pylon structure for Cable-stayed Bridge with Slanted Pylon |
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| Country | Link |
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| CN (1) | CN204151676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314004A (en) * | 2014-10-15 | 2015-01-28 | 广东省冶金建筑设计研究院 | Prestressed steel shell concrete cable tower structure for stiffening diagonal struts |
-
2014
- 2014-10-15 CN CN201420597771.9U patent/CN204151676U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314004A (en) * | 2014-10-15 | 2015-01-28 | 广东省冶金建筑设计研究院 | Prestressed steel shell concrete cable tower structure for stiffening diagonal struts |
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Legal Events
| 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: 20150211 Termination date: 20181015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |