CN214033368U

CN214033368U - Sidewalk structure is widened in transformation of old bridge

Info

Publication number: CN214033368U
Application number: CN202022399825.9U
Authority: CN
Inventors: 陈曦
Original assignee: PowerChina Chengdu Engineering Co Ltd
Current assignee: PowerChina Chengdu Engineering Co Ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-08-24
Anticipated expiration: 2030-10-26

Abstract

The utility model provides a pavement structure is widened in old bridge transformation, which comprises a truss, the pavement road surface bolted connection of truss and bridge side, truss one end is located the bridge outside, the truss is a plurality of, and is a plurality of the truss is arranged along bridge length direction, welds between two adjacent trusss. By adopting the scheme, the sidewalk can be widened, and the standard unit is adopted for the sidewalk widening truss, so that quick construction can be realized after the bridge deck system, the pavement and the railings of the existing bridge are planed; the method also raises the sidewalk, so that the sidewalk is higher than the traffic lane, further isolates people and vehicles, and ensures the safety of the pedestrians.

Description

Sidewalk structure is widened in transformation of old bridge

Technical Field

The utility model relates to a civil engineering construction technical field, concretely relates to pavement structure is widened in old bridge transformation.

Background

In nineteen reports of Chinese economic development, Xi jinping has proposed the strategy of implementing village revivification and the report of accelerating the promotion of agricultural rural modernization. "want to get rich and repair the road first", many low grade highways are related to transformation or new construction nowadays, the ubiquitous problem of the bridge on the village and town road is: the traffic volume of vehicles on the bridge is increasing day by day, and the bridge width is narrower, and single lane people and vehicles mixes the full width of bridge width and only has 3.5m ~ 4m, and double lane people and vehicles mixes the full width of bridge width and only has 6.5m ~ 7.5m, and after planing the railing width, the pedestrian available space is very little, has very big potential safety hazard to the pedestrian when people and vehicles go together. More current methods are to dismantle and rebuild the bridge or to make a wide splicing bridge on both sides or one side of the existing bridge to solve the current situation of insufficient width of the sidewalk, and the methods have larger investment and longer construction period.

SUMMERY OF THE UTILITY MODEL

The utility model provides a widened sidewalk structure for old bridge reconstruction, which can widen the sidewalk and adopt standard units for widening trusses of the sidewalk to realize rapid construction after removing the bridge deck system, pavement and railings of the existing bridge; the method also raises the sidewalk, so that the sidewalk is higher than the traffic lane, further isolates people and vehicles, and ensures the safety of the pedestrians.

The utility model adopts the technical proposal that: the utility model provides a pavement structure is widened in transformation of old bridge, includes the truss, the pavement road surface bolted connection of truss and bridge side, truss one end is located the bridge outside, the truss is a plurality of, and is a plurality of the truss is arranged along bridge length direction, welds between two adjacent trusss.

When the scheme is operated specifically, the sidewalk of the old bridge is widened, the truss structure is adopted to complete the widening, one part of the truss is connected with the sidewalk through bolts, the other part of the truss is positioned outside the bridge, and at the moment, the inside of the truss can replace the sidewalk for pedestrians to enter and exit, so that the purpose of widening the sidewalk is achieved; the truss is connected with the sidewalk, the truss is located above the sidewalk, and the bottom of the truss is at a certain height, so that the height of the sidewalk is increased, the sidewalk is further isolated from a traffic lane, and the safety is improved. According to the actual engineering experiment, in the construction process, the bridge deck system, the railing chiseling and rebuilding time is planed, the actual construction time for assembling the truss only needs one day, the time cost is greatly saved, the traffic capacity of the bridge can be quickly recovered, the truss is low in manufacturing cost, and the cost is further reduced. One truss is regarded as an integral unit, a plurality of trusses can be installed along the length direction of the bridge, and the adjacent trusses are welded, so that the truss bridge is suitable for carrying and can achieve the effect of quick assembly.

Furthermore, the truss is connected with a pavement bolt on the side of the bridge through expansion bolts, and the distance between every two adjacent expansion bolts is 1-3 dm.

When this scheme specifically operates, be often used to the transformation of old bridge, and the structure of old bridge inside leads to intensity to reduce owing to erode, the condition such as morals and manners, when using expansion bolts to strengthen the relation of connection, still should restrict the interval between the bolt, if the bolt interval is too intensive, can destroy the inner structure of bridge, serious can lead to collapsing, and if the bolt interval is too sparse, can lead to joint strength not enough, therefore this scheme sets up the interval of two adjacent expansion bolts and is between 1dm ~ 3 dm.

Further, for the intensity and the life of improvement truss, set up to: the truss is made of angle steel.

Further, set up supporting steel plate in pavement below to improve the holding power of bridge to the truss, prevent that the atress from too big collapsing, set up to: the supporting steel plate is arranged below the sidewalk on the side edge of the bridge, one end of the supporting steel plate is connected with the sidewalk on the side edge of the bridge through bolts, the other end of the supporting steel plate is connected with the bridge stone column through bolts, and the supporting steel plate is used for supporting the bridge.

The bridge is characterized by further comprising a connecting rod, wherein one end of the connecting rod is connected with the inner end of the truss, and the other end of the connecting rod penetrates through a sidewalk on the side of the bridge to be connected with the middle of the supporting steel plate.

When this scheme is specifically operated, the connecting rod both ends are through connecting truss and supporting steel plate, produce pulling force to truss inner for when firm truss, make more parts of truss can surpass the bridge, promote the width on pavement.

Further, the pavement can be widened through the truss in the both sides of bridge, further improves the security, sets up to: a plurality of trusses are arranged on two sides of the bridge.

Further, for increasing the function of keeping off the rain and preventing sunshine, all lay the steel sheet on every truss, until spreading, later carry out pavement layer's of pavement again and lay, set up to: and a plurality of steel plates are paved on the top of each truss.

The utility model discloses following beneficial effect has:

the scheme provides a widened sidewalk structure for old bridge reconstruction, and by adopting the scheme, a sidewalk can be widened, and a standard unit is adopted for a sidewalk widened truss, so that quick construction can be realized after a bridge deck system, pavement and a railing of an existing bridge are planed; the method also raises the sidewalk, so that the sidewalk is higher than the traffic lane, further isolates people and vehicles, and ensures the safety of the pedestrians.

Drawings

Fig. 1 is a front view of an old bridge reconstruction widened sidewalk structure provided by the utility model;

fig. 2 is the utility model provides a pair of sidewalk structure is widened in old bridge transformation's schematic structure.

The reference numbers in the figures are: 1-truss, 2-supporting steel plate, 3-expansion bolt and 4-connecting rod.

Detailed Description

The present invention will be described in further detail with reference to examples.

Example (b): fig. 1 is a front view of an old bridge reconstruction widened sidewalk structure provided by the utility model; fig. 2 is the utility model provides a pair of sidewalk structure is widened in old bridge transformation's structural schematic diagram, a sidewalk structure is widened in old bridge transformation, including truss 1, the pavement surface bolted connection of truss 1 and bridge side, truss 1 one end is located the bridge outside, truss 1 is a plurality of, and is a plurality of truss 1 arranges along bridge length direction, welds between two adjacent trusses 1.

When the scheme is operated specifically, the sidewalk of the old bridge is widened, the structure of the truss 1 is adopted to complete the widening, one part of the truss 1 is connected with the sidewalk through bolts, the other part of the truss 1 is positioned outside the bridge, and at the moment, the inside of the truss 1 can replace the sidewalk for pedestrians to enter and exit, so that the purpose of widening the sidewalk is achieved; the truss 1 is connected with the sidewalk, the truss 1 is located above the sidewalk, and the bottom of the truss 1 has a certain height, so that the height of the sidewalk is increased, the sidewalk is further isolated from a traffic lane, and the safety is improved. According to the actual engineering experiment, in the work progress, the time of planing off the bridge deck system, chiseling off the railing and rebuilding, the actual construction time of assembling the truss 1 only needs one day, the time cost is greatly saved and the traffic capacity of the bridge can be rapidly recovered, and the truss 1 is low in manufacturing cost, so that the cost is further reduced. One truss 1 is regarded as an integral unit, a plurality of trusses 1 can be installed along the length direction of the bridge, and the adjacent trusses 1 are welded, so that the truss bridge is suitable for carrying and can achieve the effect of quick assembly.

Furthermore, the truss 1 is connected with a pavement of a sidewalk on the side of the bridge through expansion bolts 3, and the distance between every two adjacent expansion bolts 3 is 1 dm-3 dm.

When this scheme specifically operates, be often used to the transformation of old bridge, and the structure of old bridge inside leads to intensity to reduce owing to erode, the condition such as morals and manners, when using expansion bolts 3 to strengthen the relation of connection, still should restrict the interval between the bolt, if the bolt interval is too intensive, can destroy the inner structure of bridge, serious can lead to collapsing, and if the bolt interval is too sparse, can lead to joint strength not enough, therefore this scheme sets up the interval of two adjacent expansion bolts 3 and is between 1dm ~ 3 dm.

Further, for improving the strength and the service life of the truss 1, the method comprises the following steps: the truss 1 is made of angle steel.

Further, set up supporting steel plate 2 in pavement below to improve the bridge and to truss 1's holding power, prevent that the atress is too big to collapse, set up to: the supporting steel plate 2 is arranged below the sidewalk on the side edge of the bridge, one end of the supporting steel plate 2 is connected with the bolt below the sidewalk on the side edge of the bridge through the bolt, the other end of the supporting steel plate 2 is connected with the bridge stone column through the bolt, and the supporting steel plate 2 is used for supporting the bridge.

Furthermore, the bridge support structure further comprises a connecting rod 4, one end of the connecting rod 4 is connected with the inner end of the truss 1, and the other end of the connecting rod 4 penetrates through a sidewalk on the side of the bridge and is connected with the middle of the support steel plate 2.

When this scheme is specifically operated, 4 both ends of connecting rod are through connecting truss 1 and supporting steel plate 2, produce pulling force to truss 1 inner for when stabilizing truss 1, make truss 1 more parts can surpass the bridge, promote the width on pavement.

Further, the pavement can be widened through truss 1 in both sides of bridge, further improves the security, sets up to: both sides of the bridge are provided with a plurality of trusses 1.

Further, for increasing the function of keeping off the rain and preventing sunshine, all lay the steel sheet on every truss 1, until spreading full, later carry out pavement layer's of pavement again lay, set up to: and a plurality of steel plates are paved at the top of each truss 1.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a pavement structure is widened in transformation of old bridge, its characterized in that, includes truss (1), the pavement road surface bolted connection of truss (1) and bridge side, truss (1) one end is located the bridge outside, truss (1) is a plurality of, and is a plurality of truss (1) is arranged along bridge length direction, welds between two adjacent trusss (1).

2. The sidewalk structure for reconstructing and widening old bridges according to claim 1, wherein the truss (1) is connected with sidewalk pavements at the side of the bridge through expansion bolts (3), and the distance between two adjacent expansion bolts (3) is 1-3 dm.

3. The old bridge reconstruction widening sidewalk structure according to claim 1, wherein angle steel is adopted for the truss (1).

4. The sidewalk structure for reconstructing and widening an old bridge according to claim 1, wherein a supporting steel plate (2) is arranged below the sidewalk on the side of the bridge, one end of the supporting steel plate (2) is connected with a bolt below the sidewalk on the side of the bridge through a bolt, the other end of the supporting steel plate (2) is connected with a bolt of a bridge stone column, and the supporting steel plate (2) is used for supporting the bridge.

5. The sidewalk structure for reconstructing and widening an old bridge according to claim 4, further comprising a connecting rod (4), wherein one end of the connecting rod (4) is connected with the inner end of the truss (1), and the other end of the connecting rod (4) penetrates through a sidewalk on the side of the bridge and is connected with the middle of the supporting steel plate (2).

6. The old bridge reconstruction widening sidewalk structure according to claim 1, wherein the sidewalk pavements on both sides of the bridge are provided with a plurality of trusses (1).

7. The old bridge reconstruction widening sidewalk structure according to claim 6, wherein a plurality of steel plates are laid on the top of each truss (1).