CN214695104U - Short-tower cable-stayed bridge with large cantilever box girder - Google Patents
Short-tower cable-stayed bridge with large cantilever box girder Download PDFInfo
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- CN214695104U CN214695104U CN202120579958.6U CN202120579958U CN214695104U CN 214695104 U CN214695104 U CN 214695104U CN 202120579958 U CN202120579958 U CN 202120579958U CN 214695104 U CN214695104 U CN 214695104U
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Abstract
The utility model relates to the technical field of bridge construction, in particular to a short-tower cable-stayed bridge with a large cantilever box girder, which comprises a bridge pavement, wherein the front side of the bridge pavement is provided with a first highway, a first expansion joint is arranged between the bridge pavement and the first highway and positioned on the roadside, and the back side of the bridge pavement is provided with a second highway, the pressure on the whole bridge is detected by the first bridge pressure sensor and the second bridge pressure sensor, so that people can visually know the load condition of the bridge, thereby solving the problem that the existing short-tower cable-stayed bridge has the upper load limit of the whole bridge when in operation, and when a large number of vehicles run on the bridge, people cannot visually know whether the load of the bridge reaches the upper limit and limit the driving, and excessive overload is not found in time, thus leading to the extremely large reduction of the service life of the whole short-tower cable-stayed bridge, and then the working life of the bridge is guaranteed.
Description
Technical Field
The utility model relates to a bridge construction technical field specifically is a short tower cable-stay bridge with big cantilever case roof beam.
Background
The short-tower cable-stayed bridge is a novel bridge between a continuous beam bridge and a cable-stayed bridge, has been developed for 20 years in China, has more abundant forms and more novel structures along with the accumulation of experiences of research, design, construction and management of the bridge, the beam body structure of the short-tower cable-stayed bridge mostly adopts a concrete box beam structure, the width of the box beam is increased along with the wider and wider road, the box beam generally adopts a straight web plate to be higher than the box beam, the width of the bridge deck is increased, the problem is mainly solved by increasing the number of box chambers, a flange cantilever generally adopts a small cantilever, and the existing short-tower cable-stayed bridge has the integral load upper limit of the bridge during the operation, when a large number of vehicles run on the bridge, people cannot intuitively know whether the load of the bridge reaches the upper limit, and the traveling is limited, and excessive overload is not discovered in time, so that the overall service life of the short-tower cable-stayed bridge is greatly reduced.
There is therefore a need for a short tower cable-stayed bridge with a large cantilever box girder that ameliorates the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a short tower cable-stay bridge with big cantilever case roof beam to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a short-tower cable-stayed bridge with a large cantilever box girder comprises a bridge pavement, wherein a first highway is arranged on the front side of the bridge pavement, a first expansion joint is arranged between the bridge pavement and the first highway and positioned on the bridge pavement, a second highway is arranged on the back side of the bridge pavement, a second expansion joint is arranged between the bridge pavement and the second highway and positioned on the bridge pavement, a first bridge tower and a second bridge tower are symmetrically arranged on the end surface of the bridge pavement, a first inhaul cable is arranged on the front side of the first bridge tower, the other end of the first inhaul cable is connected on the bridge pavement, a second inhaul cable is arranged on the back side of the first bridge tower and corresponds to the first inhaul cable, the other end of the second inhaul cable is connected on the bridge pavement, a third inhaul cable is arranged on the front side of the second bridge tower, the other end of the third inhaul cable is connected on the bridge pavement, and a fourth inhaul cable is arranged on the back side of the second bridge tower and corresponds to the third inhaul cable, the other end of the fourth inhaul cable is connected to the bridge road surface, the bottom on bridge road surface is equipped with the box girder, the bottom of box girder and with the corresponding first pier that is equipped with of first bridge tower, be equipped with first bridge pressure sensor between first pier and the box girder, the bottom of box girder and with the corresponding second pier that is equipped with of second bridge tower, be equipped with second bridge pressure sensor between second pier and the box girder.
Preferably, the first pull cable, the second pull cable, the third pull cable and the fourth pull cable are all formed by binding galvanized steel wire ropes.
Preferably, the first inhaul cables are provided with a plurality of inhaul cables which are evenly distributed on the front face of the first bridge tower, and the second inhaul cables are provided with a plurality of inhaul cables which correspond to the first inhaul cables and are evenly distributed on the back face of the first bridge tower.
Preferably, the third inhaul cables are provided with a plurality of third inhaul cables which are evenly distributed on the front face of the second bridge tower, and the fourth inhaul cables are provided with a plurality of fourth inhaul cables which correspond to the third inhaul cables and are evenly distributed on the back face of the second bridge tower.
Preferably, the box girder is a prefabricated box girder.
Preferably, the first bridge pressure sensor and the second bridge pressure sensor are both electrically connected through a connection mode between a lead and a power supply.
Preferably, the first bridge pressure sensor and the second bridge pressure sensor are both connected with an alarm system through a local area network.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses in, through first bridge pressure sensor and the second bridge pressure sensor who sets up, the pressure that receives whole bridge detects, thereby make people can know the load situation of bridge directly perceived, thereby solved current short tower cable-stay bridge and in service, there is the holistic load upper limit of bridge, when a large amount of vehicles travel on the bridge, people can't know the load of bridge directly perceived whether reach the upper limit, and go to restrict the driving, too much overload is not in time discover, the problem that has leaded to the very big decline of short tower cable-stay bridge whole service life, and then the operational age of time bridge obtains guaranteeing.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a sectional view of a first bridge pier of the present invention;
fig. 3 is a sectional view of a second pier portion of the present invention.
In the figure: 1. bridge pavement; 2. a first road; 3. a first expansion joint; 4. a second road; 5. a second expansion joint; 6. a first bridge tower; 7. a second bridge tower; 8. a first cable; 9. a second cable; 10. a third cable; 11. a fourth cable; 12. a box girder; 13. a first bridge pier; 14. a first bridge pressure sensor; 15. a second bridge pier; 16. a second bridge pressure sensor.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution:
a short-tower cable-stayed bridge with a large cantilever box girder comprises a bridge pavement 1, wherein a first highway 2 is arranged on the front side of the bridge pavement 1, a first expansion joint 3 is arranged between the bridge pavement 1 and the first highway 2 and positioned on the bridge pavement 1, a second highway 4 is arranged on the back side of the bridge pavement 1, a second expansion joint 5 is arranged between the bridge pavement 1 and the second highway 4 and positioned on the bridge pavement 1, a first bridge tower 6 and a second bridge tower 7 are symmetrically arranged on the end surface of the bridge pavement 1, a first cable 8 is arranged on the front side of the first bridge tower 6, the other end of the first cable 8 is connected to the bridge pavement 1, a second cable 9 is arranged on the back side of the first bridge tower 6 and corresponds to the first cable 8, the other end of the second cable 9 is connected to the bridge pavement 1, a third cable 10 is arranged on the front side of the second bridge tower 7, the other end of the third cable 10 is connected to the bridge pavement 1, the back of second bridge tower 7 and with the corresponding fourth cable 11 that is equipped with of third cable 10, the other end of fourth cable 11 is connected on bridge road surface 1, the bottom of bridge road surface 1 is equipped with box girder 12, the bottom of box girder 12 and with first bridge tower 6 corresponding be equipped with first pier 13, be equipped with first bridge pressure sensor 14 between first pier 13 and the box girder 12, the bottom of box girder 12 and with second bridge tower 7 corresponding be equipped with second pier 15, be equipped with second bridge pressure sensor 16 between second pier 15 and the box girder 12.
The utility model discloses work flow: when in use, under the effect that the first bridge pressure sensor 14 and the second bridge pressure sensor 16 are both electrically connected through the connection mode between the wires and the power supply, the sensors are electrified to work, the real-time pressure on the bridge is detected, when the bridge load is abnormal, the sensors can alarm under the effect that the first bridge pressure sensor 14 and the second bridge pressure sensor 16 are both connected with the alarm system through the local area network, people are reminded of bridge overload, and accordingly the running vehicle is limited, such as the problem 1, the utility model discloses a pressure on the whole bridge is detected through the first bridge pressure sensor 14 and the second bridge pressure sensor 16, so that people can visually know the load condition of the bridge, and the problem that the existing short tower cable-stayed bridge has the whole load upper limit during running is solved, when a large amount of vehicles run on the bridge, people cannot visually know whether the load of the bridge reaches the upper limit or not and limit the running, excessive overload cannot be found in time, the problem that the overall service life of the short-tower cable-stayed bridge is greatly reduced is caused, and then the service life of the bridge is guaranteed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a short tower cable-stay bridge with big cantilever case roof beam, includes bridge road surface (1), its characterized in that: the front side of the bridge pavement (1) is provided with a first highway (2), a first expansion joint (3) is arranged between the bridge pavement (1) and the first highway (2) and is positioned on the bridge pavement (1), the back side of the bridge pavement (1) is provided with a second highway (4), a second expansion joint (5) is arranged between the bridge pavement (1) and the second highway (4) and is positioned on the bridge pavement (1), the end surface of the bridge pavement (1) is symmetrically provided with a first bridge tower (6) and a second bridge tower (7), the front side of the first bridge tower (6) is provided with a first inhaul cable (8), the other end of the first inhaul cable (8) is connected on the bridge pavement (1), the back side of the first bridge tower (6) is provided with a second inhaul cable (9) corresponding to the first inhaul cable (8), and the other end of the second inhaul cable (9) is connected on the bridge pavement (1), the front surface of the second bridge tower (7) is provided with a third inhaul cable (10), the other end of the third inhaul cable (10) is connected to the bridge pavement (1), a fourth guy cable (11) is arranged on the back of the second bridge tower (7) and corresponds to the third guy cable (10), the other end of the fourth inhaul cable (11) is connected to the bridge pavement (1), a box girder (12) is arranged at the bottom of the bridge pavement (1), a first pier (13) is arranged at the bottom of the box girder (12) and corresponds to the first bridge tower (6), a first bridge pressure sensor (14) is arranged between the first pier (13) and the box girder (12), a second pier (15) is arranged at the bottom of the box girder (12) and corresponds to the second bridge tower (7), and a second bridge pressure sensor (16) is arranged between the second pier (15) and the box girder (12).
2. The short tower cable-stayed bridge with the large cantilever box girder according to claim 1, wherein: the first inhaul cable (8), the second inhaul cable (9), the third inhaul cable (10) and the fourth inhaul cable (11) are all formed by binding galvanized steel wire ropes.
3. The short tower cable-stayed bridge with the large cantilever box girder according to claim 1, wherein: the first inhaul cables (8) are arranged on the front face of the first bridge tower (6) in a plurality of uniform distribution mode, and the second inhaul cables (9) are arranged on the back face of the first bridge tower (6) in a plurality of uniform distribution mode corresponding to the first inhaul cables (8).
4. The short tower cable-stayed bridge with the large cantilever box girder according to claim 1, wherein: the third inhaul cables (10) are arranged on the front face of the second bridge tower (7) and are uniformly distributed, and the fourth inhaul cables (11) are arranged on the back face of the second bridge tower (7) and correspond to the third inhaul cables (10) and are uniformly distributed.
5. The short tower cable-stayed bridge with the large cantilever box girder according to claim 1, wherein: the box girder (12) adopts a prefabricated box girder.
6. The short tower cable-stayed bridge with the large cantilever box girder according to claim 1, wherein: the first bridge pressure sensor (14) and the second bridge pressure sensor (16) are electrically connected with each other through a connection mode between a lead and a power supply.
7. The short tower cable-stayed bridge with the large cantilever box girder according to claim 1, wherein: the first bridge pressure sensor (14) and the second bridge pressure sensor (16) are connected with an alarm system through a local area network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120579958.6U CN214695104U (en) | 2021-03-22 | 2021-03-22 | Short-tower cable-stayed bridge with large cantilever box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120579958.6U CN214695104U (en) | 2021-03-22 | 2021-03-22 | Short-tower cable-stayed bridge with large cantilever box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214695104U true CN214695104U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120579958.6U Active CN214695104U (en) | 2021-03-22 | 2021-03-22 | Short-tower cable-stayed bridge with large cantilever box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214695104U (en) |
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2021
- 2021-03-22 CN CN202120579958.6U patent/CN214695104U/en active Active
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