CN210458930U

CN210458930U - Waterproof construction of bridge pavement expansion joint position department

Info

Publication number: CN210458930U
Application number: CN201921250887.4U
Authority: CN
Inventors: 郑光辉; 冯心宜; 张严; 黄琛; 冷昊华; 邹琳斌; 赵波; 陈涛; 张运志
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-05-05
Anticipated expiration: 2029-08-05

Abstract

The utility model relates to the technical field of bridge construction, in particular to a waterproof structure at the position of an expansion joint of a bridge sidewalk, which comprises a bridge deck plate, a U-shaped steel plate and a rubber backing plate; form the expansion joint between two decking, the both sides decking upper surface of expansion joint is polished the level and smooth formation and is polished the decking, polishes and lays U shaped steel board on the decking, and expansion bolts is fixed is passed through to the one end of U shaped steel board, and one end is the expansion end in addition, is provided with one deck rubber tie plate on the lower surface of U shaped steel board. The utility model discloses make and double as highway bridge decking two side pavement expansion joints have good water-proof effects, bright ingenious multiple water-proof measures and the structure of combining build the multichannel defence line that interconnects, multi-angle, guarantee expansion joint water-proof effects conscientiously at many levels, the risk of effective control operation in-process, also greatly reduced the maintenance in later stage, the maintenance cost, there is wide application prospect in highway bridge and city bridge double as the pavement field.

Description

Waterproof construction of bridge pavement expansion joint position department

Technical Field

The utility model relates to a bridge construction technical field specifically is a waterproof construction of bridge pavement expansion joint position department.

Background

With the increasing development of highway construction, residential areas are more and more widely formed when bridges pass through two sides of a river channel, and sidewalks are added on two sides of a bridge deck of a bridge, so that the method becomes one of important forms for facilitating production and life of local residents.

The expansion joint also serves as an expansion joint of sidewalks on two sides of a bridge deck of the highway bridge, not only directly bears the dynamic load of pedestrian movement, but also directly faces the repeated action of rainwater washing, ice and snow freezing and thawing. If effective expansion joint gap waterproof measures are not taken, in the processes of repeated occurrence of temperature rise-fall, interface uneven settlement and crack opening-contraction, water on a sidewalk can permeate into a bridge deck through gaps of sidewalk boards, and water on the bridge deck directly collects at the expansion joint position due to longitudinal slopes to flow, so that the durability of the bridge deck is affected. More seriously, the rainwater directly permeates a natural protection area together with other harmful substances, and brings unexpected harm to the environment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof construction of bridge pavement expansion joint position department 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 waterproof structure at the position of an expansion joint of a bridge sidewalk comprises a bridge deck, a U-shaped steel plate and a rubber base plate; form the expansion joint between two decking of pavement position, the both sides decking upper surface of expansion joint is polished smooth and is formed and is polished the decking, lays U shaped steel board on polishing the decking, and expansion bolts is fixed is passed through to the one end of U shaped steel board, and one end is the expansion end in addition, avoids the shrinkage deformation, is provided with one deck rubber backing plate on the lower surface of U shaped steel board to the rubber backing plate also passes through expansion bolts fix, and rubber backing plate and U shaped steel board adopt expansion bolts fixed simultaneously, keep connection stability.

Further: and an epoxy resin treating agent is filled between the rubber cushion plate and the bridge deck plate for performing anticorrosive treatment.

Further: the thickness of the rubber cushion plate is 8-12 mm.

Further: the thickness of the U-shaped steel plate is 5-6 mm.

Further: the expansion bolts are provided with at least six.

Further: and a gap between the edge of the U-shaped steel plate and the bridge deck is filled with a rubber water stop belt, so that leaked water drops can flow to two sides along the U-shaped steel plate.

Further: the transition section is arranged on the outer side of the polished bridge deck and communicated with the traffic lane on the side face, so that water leaked from the U-shaped steel plate enters the transition section and then enters the traffic lane and is discharged.

Compared with the prior art, the beneficial effects of the utility model are that: the invention ensures that the expansion joint which is also used as the sidewalk at two sides of the bridge deck slab of the highway bridge has good waterproof effect, clearly and skillfully combines various waterproof measures and structures, constructs a plurality of mutually-connected defense lines, practically ensures the waterproof effect of the expansion joint at multiple angles and levels, effectively controls risks in the operation process, greatly reduces the later maintenance cost, and has wide application prospect in the field of the highway bridge and the urban bridge which are also used as the sidewalk.

Drawings

Fig. 1 is a schematic cross-sectional view of a waterproof structure at an expansion joint of a bridge sidewalk.

Fig. 2 is a schematic top view of a waterproof structure at an expansion joint of a bridge sidewalk.

Fig. 3 is a schematic top view of a U-shaped steel plate in a waterproof structure at an expansion joint of a bridge sidewalk.

Fig. 4 is a schematic top view of a rubber mat in a waterproof structure at an expansion joint of a bridge sidewalk.

In the figure: 1-bridge deck, 101-transition section, 102-polished bridge deck, 103-rubber water stop, 2-traffic lane, 3-U-shaped steel plate, 301-rubber backing plate, 302-expansion bolt and 4-expansion joint.

Detailed Description

Example 1

Referring to the drawings, in the embodiment of the present invention, a waterproof structure at an expansion joint of a bridge sidewalk includes a bridge deck 1, a U-shaped steel plate 3 and a rubber pad 301; an expansion joint 4 is formed between two bridge decks 1 at the sidewalk position, the upper surfaces of the bridge decks 1 at two sides of the expansion joint 4 are polished smoothly to form a polished bridge deck 102, a U-shaped steel plate 3 is laid on the polished bridge deck 102, one end of the U-shaped steel plate 3 is fixed through an expansion bolt 302, the other end of the U-shaped steel plate is a movable end, contraction deformation is avoided, a layer of rubber padding plate 301 is arranged on the lower surface of the U-shaped steel plate 3, the rubber padding plate 301 is also fixed through the expansion bolt 302, and the rubber padding plate 301 and the U-shaped steel plate 3 are fixed through the expansion bolt 302 at the same time, so that the; an epoxy resin treatment agent is filled between the rubber pad 301 and the bridge deck 1 to perform an anticorrosive treatment.

The thickness of the rubber base plate 301 is 8-12mm, the thickness of the U-shaped steel plate 3 is 5-6mm, and at least six expansion bolts 302 are arranged.

Example 2

On the basis of the embodiment 1, a rubber water stop 103 is filled in a gap between the edge of the U-shaped steel plate 3 and the bridge deck 1 to ensure that leaked water drops flow towards two sides along the U-shaped steel plate 3, a transition section 101 is arranged on the outer side of the polished bridge deck 102, and the transition section 101 is communicated with the side traffic lane 2, so that the leaked water on the U-shaped steel plate 3 enters the transition section 101 and then enters the traffic lane 2 to be discharged.

In order to realize the structure, the construction method comprises the following steps:

firstly, chiseling a layer of concrete on a sidewalk plate and a roadway plate on the left side and the right side of a sidewalk expansion joint respectively, placing a U-shaped steel plate 3 and a rubber base plate 301, polishing and flattening the top surface of the chiseled position to form a polished bridge deck 102, and then, adopting cement mortar to trowel and then adopting epoxy resin to paint for corrosion prevention;

placing a U-shaped steel plate 3 and a rubber cushion plate 301 at the chiseling position, wherein the rubber cushion plate 301 is arranged on the polished bridge deck 102; the U-shaped steel plate 3 is arranged at the upper part of the rubber base plate 301;

thirdly, the U-shaped steel plate 3 and the rubber backing plate 301 are only fixed on the polished bridge deck 102 through expansion bolts 302;

filling the seam edges of the U-shaped steel plates 3 and the polished bridge deck 102 with rubber water stops 103 or other water-absorbing materials, and filling the U-shaped structures of the U-shaped steel plates 3 with fine aggregate cement paste.

And step four, arranging a plurality of corresponding holes on two sides of the U-shaped steel plate 3, arranging a steel bar net structure in the U-shaped steel plate 3, enabling the transverse steel bars to penetrate through the holes, inserting the longitudinal steel bars into the holes which are preset in the running board, filling fine aggregate cement slurry into the U-shaped steel plate 3, and filling cement slurry into the holes of the running board in a grouting mode.

In the second step, the thickness of the chiseled bridge deck is 1-2 mm higher than the sum of the U-shaped steel plate 3 and the rubber base plate 301.

In the fourth step, the rubber water stop band is flush with the top surface of the U-shaped steel plate 3.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A waterproof structure at the position of an expansion joint of a bridge sidewalk comprises a bridge deck (1), a U-shaped steel plate (3) and a rubber base plate (301); the expansion joint structure is characterized in that an expansion joint (4) is formed between two bridge deck plates (1), the upper surfaces of the bridge deck plates (1) on the two sides of the expansion joint (4) are polished to be smooth to form polished bridge deck plates (102), U-shaped steel plates (3) are laid on the polished bridge deck plates (102), one ends of the U-shaped steel plates (3) are fixed through expansion bolts (302), the other ends of the U-shaped steel plates are movable ends, a layer of rubber base plate (301) is arranged on the lower surface of the U-shaped steel plates (3), and the rubber base plate (301) is also fixed through the expansion bolts (302).

2. The waterproof structure at the position of the expansion joint of the bridge sidewalk as claimed in claim 1, wherein: an epoxy resin treating agent is filled between the rubber pad (301) and the bridge deck (1).

3. The waterproof structure at the position of the expansion joint of the bridge sidewalk as claimed in claim 1, wherein: the thickness of the rubber backing plate (301) is 8-12 mm.

4. The waterproof structure at the position of the expansion joint of the bridge sidewalk as claimed in claim 1, wherein: the thickness of the U-shaped steel plate (3) is 5-6 mm.

5. The waterproof structure at the position of the expansion joint of the bridge sidewalk as claimed in claim 1, wherein: the expansion bolts (302) are provided with at least six.

6. The waterproof structure at the position of the expansion joint of the bridge sidewalk as claimed in claim 1, wherein: and a rubber water stop (103) is filled and covered in a gap between the edge of the U-shaped steel plate (3) and the bridge deck (1).

7. The waterproof structure at the position of the expansion joint of the bridge sidewalk according to any one of claims 1 to 6, wherein: a transition section (101) is arranged on the outer side of the polished bridge deck (102), and the transition section (101) is communicated with the side traffic lane (2).