CN216891966U

CN216891966U - Waterproof structure for longitudinal beam joint of overhead station bridge

Info

Publication number: CN216891966U
Application number: CN202123236419.1U
Authority: CN
Inventors: 陈杰; 陈怀智; 代汉超; 柴永飞; 张奎; 马畔; 苏欣羽; 程锐; 洪昌孝; 舒小龙
Original assignee: China Railway Shanghai Design Institute Group Co Ltd
Current assignee: China Railway Shanghai Design Institute Group Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-07-05
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to the technical field of elevated stations, in particular to a waterproof structure for a bridge longitudinal beam seam of an elevated station, which is mainly applied right above the longitudinal beam seam of a parallel bridge and comprises a water retaining structure, a plurality of vertical walls and cover plates, wherein the vertical walls are arranged on a main line box girder and positioned between a main line protective wall and a station line protective wall, and the cover plates are respectively born between the station line protective wall and the vertical walls, between the vertical walls and the main line protective wall; the water retaining structure is arranged on the standing line protection wall and located above the longitudinal beam seam, and the water retaining structure is located below the cover plate and extends to the beam surface range of the main line box beam. The utility model has the advantages that: can effectively block the vertical beam gap of overhead station bridge, arrange the rainwater in order in the centralized drainage pipe, the construction is simple, and the durability is good, and the later stage does not increase the maintenance cost basically, and water-proof effects is good, has very high popularization and use value.

Description

Waterproof structure for longitudinal beam joint of overhead station bridge

Technical Field

The utility model relates to the technical field of elevated stations, in particular to a waterproof structure for a bridge longitudinal beam seam of an elevated station, which is mainly applied right above the longitudinal beam seam of a parallel bridge.

Background

The number of high-speed railway elevated stations is increased, and the beam joint waterproof engineering between the parallel bridges is long in length and large in engineering quantity. Generally, cover plate water retaining is adopted, and the common types are as follows: reinforced concrete apron, RPC apron, steel cover plate etc. but these three kinds of apron all have certain defect in the application:

the reinforced concrete cover plate is usually produced in a small prefabricated part factory, the longitudinal and transverse dimensions are generally within 1m for controlling the field installation weight, gaps are formed among the prefabricated cover plates, and the waterproof effect is poor.

The RPC cover plate is produced in a small-sized prefabricated part factory and is installed on site, and due to the fact that the construction process requirement is high, the manufactured RPC cover plates are uneven in quality, gaps exist among the cover plates, and the waterproof effect is poor.

The steel cover plate is arranged on the top surface of the parallel beam seam to block water, has light weight and convenient installation, but is easy to rust and corrode and has poor durability.

Disclosure of Invention

The utility model aims to provide a waterproof structure for a longitudinal beam seam of a bridge in an elevated station according to the defects of the prior art, wherein a water retaining structure is arranged on the inner side of a station line protective wall, so that rainwater passing through the seam between cover plates can be guided to a designed position for corresponding discharge, and the waterproof problem of the longitudinal beam seam of the bridge is effectively solved.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides an overhead station bridge longitudinal beam seam waterproof construction, includes positive line case roof beam and station line case roof beam, positive line case roof beam with station and have a longitudinal beam seam between the line case roof beam be provided with positive line protecting wall on the positive line case roof beam station be provided with on the line case roof beam and station line protecting wall, its characterized in that: the waterproof structure comprises a water retaining structure, a plurality of vertical walls and cover plates, wherein the vertical walls are arranged on the main line box girder and are positioned between the main line protective wall and the station line protective wall, and the cover plates are respectively loaded between the station line protective wall and the vertical walls, between the vertical walls and the main line protective wall; the water retaining structure is arranged on the standing line protection wall and located above the longitudinal beam seam, and the water retaining structure is located below the cover plate and extends to the beam surface range of the main line box beam.

And a water retaining platform is arranged at the position, close to the longitudinal beam seam, of the main line box beam, and the water retaining structure is extended to the inside of the water retaining platform due to the length of the water retaining structure.

The bottom of the vertical wall and the bottom of the front line protection wall are respectively provided with a water through hole, and the inner side of the front line protection wall is provided with a water drain pipe.

And cable slots are formed in the spaces among the vertical walls and the spaces between the vertical walls and the main line protecting wall.

The water retaining structure is a cantilever extending out of the standing line protection wall and obliquely arranged, and a dripping eave is arranged at the bottom of the cantilever.

From the inside direction in longitudinal beam seam position, the beam surface of positive line case roof beam has a grade.

The water retaining structure is a reinforced concrete structure integrally cast in situ with the station line protection wall.

The utility model has the advantages that: can effectively block the vertical beam gap of overhead station bridge, arrange the rainwater in order in the centralized drainage pipe, the construction is simple, and the durability is good, and the later stage does not increase the maintenance cost basically, and water-proof effects is good, has very high popularization and use value.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The features of the present invention and other related features are described in further detail below by way of example in conjunction with the following drawings to facilitate understanding by those skilled in the art:

as shown in fig. 1, the symbols 1-11 in the figure are respectively expressed as: the device comprises a water retaining structure 1, a station line protecting wall 2, a station line box beam 3, a main line box beam 4, a main line water retaining platform 5, a vertical wall 6, a main line protecting wall 7, a cable trough 8, a reinforced concrete cover plate 9, a water drain pipe 10 and a longitudinal beam seam 11.

The embodiment is as follows: as shown in fig. 1, the waterproof structure for the longitudinal beam seam of the viaduct station bridge in the present embodiment is used for waterproofing the longitudinal seam of the bridge, which is the longitudinal beam seam 11 between the station line box girder 3 and the main line box girder 4.

As shown in fig. 1, an upright line protecting wall 7 is provided above the upright line box girder 4, and a station line protecting wall 2 is provided above the station line box girder 3, and the upright line protecting wall 7 and the station line protecting wall 2 are used to protect lines erected on the upright line box girder 4 and the station line box girder 3, respectively.

As shown in fig. 1, two vertical walls 6 are provided above the beam surface of the main line box beam 4, and the two vertical walls 6 are located outside the main line protective wall 7 and between the main line protective wall 7 and the station line protective wall 2. The reinforced concrete cover plate 9 is erected between the station line protecting wall 2 and the vertical wall near the station line protecting wall, between two vertical walls and between the main line protecting wall 7 and the vertical wall near the station line protecting wall, and is used for closing and covering the space between the station line protecting wall 2 and the main line protecting wall 7.

In this embodiment, the reinforced concrete cover plates 9 are implemented by arranging steps on the walls of the station line protective wall 2 and the main line protective wall 7, that is, one end of the corresponding reinforced concrete cover plate 9 is supported on the step position of the station line protective wall 2 or the main line protective wall 7 for lap joint installation.

As shown in fig. 1, the waterproof structure in this embodiment includes a water blocking structure 1 disposed inside a station line protecting wall 2, the water blocking structure 1 being located at a position between a longitudinal beam slit 11 and an upper reinforced concrete cover plate 9. The water retaining structure 1 is a cantilever structure on the surface of the wall body of the overhanging station line protection wall 2, and is arranged in a downward inclination mode at a certain angle so as to guide rainwater. The bottom of the water retaining structure 1 is provided with a dripping eave. A water retaining platform 5 protruding out of the surface of the beam end of the main line box beam 4 close to the longitudinal beam seam 11 is arranged on one side of the beam end, and the water retaining platform 5 is matched with the protruding length of the water retaining structure 1, so that the water retaining structure 1 can guide rainwater into the beam surface range of the main line box beam 4 within the water retaining platform 5. Water holes are arranged at the bottom of the vertical wall 6 and the front line protecting wall 7. A drain pipe 10 is arranged on the inner side of the main line protecting wall 7, and the drain pipe 10 is used for the line drainage on the inner side of the main line protecting wall 7 and is matched with the water through holes to form a rainwater drainage channel.

When the rainwater-proof structure is used, rainwater above the longitudinal beam seam 11 is firstly blocked by the reinforced concrete cover plates 9, flows to the top surface of the water-retaining structure 1 through gaps among the reinforced concrete cover plates 9, flows to a dripping eave at the bottom of the cantilever structure along the top surface of the water-retaining structure, and then drips to the top surface of the main line box beam 4. At the moment, the water retaining platform 5 blocks rainwater from the outer side, so that the rainwater is prevented from dropping from the longitudinal beam seam 11 to the bridge; rainwater on the surface of the main line box girder 4 flows into the drainage pipe 10 after passing through the vertical wall 6 and the main line protecting wall 7, so that the rainwater is orderly drained into the centralized drainage pipe.

In order to further improve the drainage efficiency and the drainage effect, the beam surface of the main line box beam 4 is provided with a certain gradient from the position of the longitudinal beam seam 11 to the inner direction, so that the rainwater can flow into the drainage pipe 10 more quickly along the gradient.

As shown in fig. 1, cable troughs 8 are formed between the vertical walls 6 and the protective walls 7 to provide a space for laying cables for the lines. At this time, two cable troughs 8 separated by the vertical wall 6 can adopt a strong and weak current separated bin structure to further ensure the safety.

In the embodiment, in specific implementation: the water retaining structure 1 and the station line protecting wall 2 are integrally cast in site, so that the structural strength and the structural stability of the overhanging water retaining structure 1 are improved.

Another water drain pipe 10 is provided inside the station line protecting wall 2, and the water drain pipe 10 is used for line drainage in the station line protecting wall 2.

The water retaining structure 1 is a reinforced concrete structure, the thickness of the water retaining structure can be 10cm-12.5cm, the height of the water retaining structure is 20cm higher than that of the main line water retaining platform 5, and a dripping eave with the radius of 2.5cm is arranged on the lower edge of the end part of the cantilever. The water retaining platform 5 is of a reinforced concrete structure, is 15cm wide and is 20cm higher than the beam surface. The vertical wall 6 and the front line protective wall 7 are provided with water passing holes (15 cm multiplied by 20 cm) which are opposite to the drainage holes 10 every 4m along the length direction of the bridge. The width of the longitudinal beam seam 11 is 5cm-10cm and is determined by combining the cross section arrangement of the elevated station.

Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, they are not to be considered repeated herein.

Claims

1. The utility model provides an overhead station bridge longitudinal beam seam waterproof construction, includes positive line case roof beam and station line case roof beam, positive line case roof beam with station and have a longitudinal beam seam between the line case roof beam be provided with positive line protecting wall on the positive line case roof beam station be provided with on the line case roof beam and station line protecting wall, its characterized in that: the waterproof structure comprises a water retaining structure, a plurality of vertical walls and cover plates, wherein the vertical walls are arranged on the main line box girder and are positioned between the main line protective wall and the station line protective wall, and the cover plates are respectively loaded between the station line protective wall and the vertical walls, between the vertical walls and the main line protective wall; the water retaining structure is arranged on the standing line protection wall and located above the longitudinal beam seam, and the water retaining structure is located below the cover plate and extends to the beam surface range of the main line box beam.

2. The elevated station bridge longitudinal beam seam waterproof structure of claim 1, wherein: and a water retaining platform is arranged at the position, close to the longitudinal beam seam, of the main line box beam, and the water retaining structure is extended to the inside of the water retaining platform due to the length of the water retaining structure.

3. The elevated station bridge longitudinal beam seam waterproof structure of claim 1, wherein: the bottom of the vertical wall and the bottom of the front line protection wall are respectively provided with a water through hole, and the inner side of the front line protection wall is provided with a water drain pipe.

4. The elevated station bridge longitudinal beam seam waterproof structure of claim 1, wherein: and cable grooves are formed in the spaces among the vertical walls and the main line protecting walls.

5. The elevated station bridge longitudinal beam seam waterproof structure of claim 1, wherein: the water retaining structure is a cantilever which extends out of the standing line protection wall and is obliquely arranged, and a water dripping eave is arranged at the bottom of the cantilever.

6. The elevated station bridge longitudinal beam seam waterproof structure of claim 1, wherein: from the inside direction in longitudinal beam seam position, the beam surface of positive line case roof beam has a grade.

7. The elevated station bridge longitudinal beam seam waterproof structure of claim 1, wherein: the water retaining structure is a reinforced concrete structure integrally cast with the station line protective wall in situ.