CN216663772U

CN216663772U - Ultra-high performance geopolymer concrete bridge supporting pad stone

Info

Publication number: CN216663772U
Application number: CN202220071805.5U
Authority: CN
Inventors: 邹剑; 刘志成; 唐林阳; 刘玉明; 熊佳佳
Original assignee: Hengyang Highway And Bridge Construction Co ltd
Current assignee: Hengyang Highway And Bridge Construction Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-06-03
Anticipated expiration: 2032-01-12

Abstract

The utility model discloses an ultrahigh-performance geopolymer concrete bridge supporting pad stone, which comprises abutments and ultrahigh-performance geopolymer concrete bridge supporting pad stones, wherein the ultrahigh-performance geopolymer concrete bridge supporting pad stones are arranged on the abutments, and steel ring frameworks are arranged in the ultrahigh-performance geopolymer concrete bridge supporting pad stones; according to the utility model, the ultrahigh-performance geopolymer concrete is adopted to manufacture the bridge supporting pad stone, so that the bridge supporting pad stone has more excellent mechanical properties and durability, the service life is longer, the steel ring framework replaces a steel bar mesh in the traditional bridge supporting pad stone, and the construction difficulty is effectively reduced.

Description

Ultra-high performance geopolymer concrete bridge supporting pad stone

Technical Field

The utility model relates to the field of bridge engineering, in particular to an ultrahigh-performance geopolymer concrete bridge supporting pad stone.

Background

The bridge support base cushion stone is an important component of a bridge, and the service life and the structural safety of the bridge are directly influenced by the quality of the bridge support base cushion stone. The support base stone has the characteristics of small volume, large stress, concentrated stress, dense distribution of reinforcing steel bars in a body, high construction precision requirement and the like, and in the field construction process, if the elevation and the plane position of the support base stone are not well controlled, the distributed reinforcing steel bars are unreasonably arranged, the phenomenon that the support base is stressed unevenly or is empty can be caused, and thus serious potential safety and quality hazards are caused.

At present, the bridge supporting pad stone is usually poured by common high-strength concrete, although the structural strength of the common high-strength concrete meets the use requirement, the anti-permeability and anti-corrosion capabilities are weaker, the durability is poor, particularly, reinforcing steel bars in the supporting pad stone are densely distributed, the common high-strength concrete is easy to crack under high-strength work to cause the corrosion of the reinforcing steel bars, and further the bridge supporting pad stone is damaged, and the use safety of a bridge is influenced.

The ultrahigh-strength geopolymer concrete is prepared by taking geopolymer as a cementing material instead of cement, and the geopolymer is produced by taking industrial waste materials such as fly ash, slag and the like as raw materials, so that the utilization of waste is realized, the price is low, and the environment is not polluted; the ultra-high performance geopolymer concrete has the advantages of excellent mechanical property, strong anti-permeability and anti-corrosion capability, good durability and the like.

Disclosure of Invention

The utility model aims to provide an ultra-high performance geopolymer concrete bridge supporting pad stone which is convenient and fast to construct, strong in mechanical property and good in durability.

In order to achieve the above object, one technical solution of the present invention is:

the ultrahigh-performance geopolymer concrete bridge supporting cushion stone comprises abutments and the ultrahigh-performance geopolymer concrete bridge supporting cushion stone, wherein the ultrahigh-performance geopolymer concrete bridge supporting cushion stone is arranged on the abutments, and a steel ring framework is arranged in the ultrahigh-performance geopolymer concrete bridge supporting cushion stone.

Furthermore, 2-5 ultra-high-performance geopolymer concrete bridge supporting cushion stones are placed on the pier, and the distance between every two adjacent ultra-high-performance geopolymer concrete bridge supporting cushion stones is equal.

Furthermore, the ultra-high performance geopolymer concrete bridge supporting pad is made of ultra-high performance geopolymer concrete with the compressive strength of 120-150 Mpa.

Furthermore, the ultra-high performance geopolymer concrete bridge supporting pad is cylindrical, the radius of the ultra-high performance geopolymer concrete bridge supporting pad is 30-45 cm, and the height of the ultra-high performance geopolymer concrete bridge supporting pad is 10-25 cm.

Further, the steel ring framework is composed of a plurality of steel rings and steel bars for fixing the steel rings, a plurality of reserved communication holes are formed in the steel rings and are arranged in a matrix mode, the aperture of each reserved communication hole is 2 cm-3 cm, the radius of the steel ring on the outermost layer of the steel ring framework is 25 cm-45 cm, and one steel ring is arranged at each interval of 5 cm-10 cm in the inner layer.

Furthermore, one end of the steel ring framework is welded and fixed on the steel bar net in the pier.

The utility model has the technical effects that:

1. this cushion stone structural strength is high, the durability is good, long service life: the ultra-high performance geopolymer concrete is adopted to manufacture the bridge supporting pad stone, so that the bridge supporting pad stone not only has excellent mechanical properties, but also has better anti-permeability, anti-corrosion capability and durability compared with the common concrete bridge supporting pad stone, and has longer service life.

2. The cushion stone is uniformly stressed and is not easy to have a void phenomenon: because the ultra-high performance geopolymer concrete does not contain coarse aggregate, the surface of the manufactured bridge supporting pad stone is smooth and flat, the bridge supporting pad stone can be completely attached to an upper supporting structure, the phenomenon of void cannot occur, the stress is not uniform, and meanwhile, the problem that corners of a square column structure are easy to knock down is solved by adopting a cylindrical structure.

3. The cushion stone has high construction speed and good implementation effect: adopt steel ring framework to replace the densely covered reinforcing bar net among the traditional bridge supporting base stone, can effectively improve when supporting base stone concrete placement because the reinforcing bar net is too close concrete vibration degree of difficulty is big, the inhomogeneous problem of vibrating, guaranteed bridge supporting base stone construction quality.

Drawings

FIG. 1 is a schematic view of an ultra-high performance geopolymer bridge support pad stone arrangement according to the present invention;

FIG. 2 is a sectional view of the ultra-high performance geopolymer bridge supporting pad stone structure of the present invention;

FIG. 3 is a schematic view of a steel ring framework of a super high performance geopolymer bridge supporting cushion stone of the present invention;

wherein, 1, pier; 2. ultra high performance geopolymer concrete support bolsters; 21. a steel ring framework; 211. steel rings; 212. reinforcing steel bars; 213. and reserving a communication hole.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

As shown in figures 1-3, the utility model provides an ultra-high performance geopolymer concrete bridge supporting pad stone, which comprises an abutment 1 and an ultra-high performance geopolymer concrete bridge supporting pad stone 2, wherein the ultra-high performance geopolymer concrete bridge supporting pad stone 2 is arranged on the abutment, and a steel ring framework 21 is arranged inside the ultra-high performance geopolymer concrete bridge supporting pad stone 2.

In this embodiment, 3 ultra-high performance geopolymer concrete bridge supporting cushion stones 2 made of ultra-high performance geopolymer concrete with compressive strength of 120Mpa are placed on the abutment 1, and the distances between the adjacent ultra-high performance geopolymer concrete bridge supporting cushion stones 2 are equal.

Specifically, the ultra-high performance geopolymer concrete bridge supporting pad 2 is a cylindrical supporting pad, the radius of which is 35cm, and the height of which is 10 cm.

Specifically, steel ring skeleton 21 comprises 3 steel rings 211 and reinforcing bar 212 of fixed steel ring 211, seted up a plurality of reservation intercommunicating pores 213 on steel ring 211, reservation intercommunicating pores 213 is the matrix arrangement, and reservation intercommunicating pores 213 aperture is 2cm, outermost steel ring 211 radius of steel ring skeleton 21 is 30cm, and every interval 5cm radius of inlayer sets up a steel ring 211.

Specifically, one end of the steel ring framework 21 is welded and fixed on the steel bar net in the abutment 1.

The working principle of the utility model is as follows: because the ultra-high performance geopolymer concrete does not contain coarse aggregate, the surface of the manufactured bridge supporting cushion stone is smooth and flat, and can be completely attached to an upper supporting structure, the phenomenon of void cannot occur, so that uneven stress is caused, meanwhile, the ultra-high performance geopolymer concrete bridge supporting cushion stone 2 is of a cylindrical structure, the problem that corners of a square column structure are easy to knock down is avoided, a steel ring framework 21 is adopted to replace a densely distributed reinforcing mesh in the traditional bridge supporting cushion stone, the problems that the vibration difficulty is high due to the fact that the reinforcing mesh is too dense in concrete when the supporting cushion stone is poured can be effectively solved, and the construction quality of the bridge supporting cushion stone 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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The ultra-high performance geopolymer concrete bridge supporting pad stone is characterized by comprising abutments (1) and ultra-high performance geopolymer concrete bridge supporting pad stones (2), wherein the ultra-high performance geopolymer concrete bridge supporting pad stones (2) are arranged on the abutments (1), and steel ring frameworks (21) are arranged inside the ultra-high performance geopolymer concrete bridge supporting pad stones (2).

2. The ultra-high performance geopolymer concrete bridge supporting cushion stone as claimed in claim 1, wherein 2-5 ultra-high performance geopolymer concrete bridge supporting cushion stones (2) are placed on said pier (1), and the distance between adjacent ultra-high performance geopolymer concrete bridge supporting cushion stones (2) is equal.

3. The ultra-high performance geopolymer concrete bridge supporting pad stone as claimed in claim 1, wherein said ultra-high performance geopolymer concrete bridge supporting pad stone (2) is made of ultra-high performance geopolymer concrete with compressive strength of 120Mpa to 150 Mpa.

4. The ultra-high performance geopolymer concrete bridge supporting cushion stone as claimed in claim 1, wherein said ultra-high performance geopolymer concrete bridge supporting cushion stone (2) is cylindrical with a radius of 30cm to 50cm and a height of 10cm to 25 cm.

5. The ultra-high performance geopolymer concrete bridge supporting pad stone as claimed in claim 1, wherein the steel ring framework (21) is composed of a plurality of steel rings (211) and steel bars (212) containing fixed steel rings (211), a plurality of reserved communication holes (213) are formed in the steel rings (211), the reserved communication holes (213) are arranged in a matrix, the aperture of each reserved communication hole (213) is 2 cm-3 cm, the radius of the steel ring (211) on the outermost layer of the steel ring framework (21) is 25 cm-45 cm, and one steel ring (211) is arranged at each interval of 5 cm-10 cm in the inner layer.

6. The ultra-high performance geopolymer concrete bridge supporting stepping stone as claimed in claim 5, wherein one end of said steel ring framework (21) is welded and fixed on the steel bar net in the pier (1).