CN216339083U

CN216339083U - Pier flexible reinforcement structure based on high-ductility FRP

Info

Publication number: CN216339083U
Application number: CN202121962608.4U
Authority: CN
Inventors: 白玉磊; 杨洪龙; 贾俊峰; 严志威
Original assignee: Beijing University of Technology
Current assignee: Beijing University of Technology
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-04-19
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a pier flexible reinforcing structure based on high-ductility FRP (fiber reinforced plastic), which comprises high-ductility FRP cloth made of waste plastic bottles, a reinforcing steel block and a clamping device. All components of the system are processed by factories, so that the precision and the quality are easier to control, and the field installation is simple and convenient. The utility model provides a novel flexible pier reinforcing device. The principle is as follows: the energy generated by the collision between a ship (vehicle) and a pier is absorbed by the reinforced steel blocks, and the impact force generated after the collision of the ship (vehicle) is reduced by the high-ductility FRP. The method can effectively protect the safety of the bridge pier and the ship (vehicle).

Description

Pier flexible reinforcement structure based on high-ductility FRP

Technical Field

The utility model relates to a pier flexible reinforcing structure based on high-ductility FRP (fiber reinforced Plastic), in particular to a pier flexible reinforcing structure for solving the problem of pier reinforcement.

Background

With the rapid development of the transportation industry in China, a large number of bridges are built, the number of ships (vehicles) is gradually increased, and the safety of the bridges is more and more emphasized.

The accident of ship (vehicle) collision to pier has become a common social problem. For large ships (vehicles) or piers, when collision accidents occur, the ships are easy to sink due to collision or the piers are easy to damage or even destroy, so that serious economic loss and social safety problems are caused. At present, collision force between a ship (vehicle) and a pier is avoided or reduced mainly by arranging anti-collision facilities (such as a steel sleeve box, an artificial island and the like) on the pier. Then, the methods have certain limitations, such as the steel sleeve box has larger rigidity and smaller impact force on reducing the ship (vehicle); the artificial island occupies more navigation channel positions. And they require certain construction and maintenance cycles during which the normal passage of the ship (vehicle) is affected.

The utility model absorbs the energy generated by the collision between a ship (vehicle) and a pier through the traditional steel block. The impact force generated by collision of a ship (vehicle) and a pier is reduced based on better flexibility brought by the high-ductility FRP, so that the safety of the pier and the ship is better protected. In addition, the high-ductility FRP is made of waste plastic bottles, and meets the social theme of current environmental protection.

SUMMERY OF THE UTILITY MODEL

In order to effectively solve the safety problem caused by collision of ships or vehicles on the bridge pier, the utility model provides a bridge pier flexible reinforcing method based on high-ductility FRP, which can effectively absorb energy generated by impact and reduce impact force.

The technical scheme of the utility model is as follows:

a pier flexible reinforcing structure based on high-ductility FRP comprises high-ductility FRP cloth (1), a reinforcing steel block (2) and a clamping device (3); high-ductility FRP cloth (1) links to each other through epoxy glue with reinforcing steel block (2), fixes high-ductility FRP cloth (1) through nut (31) of clamping device (3).

Furthermore, the clamping device (3) is set to be a wedge-shaped block, bolt holes (31) are formed in the two sides of the clamping device, the surface connected with the FRP cloth is made into a stripe shape (32), the outer side of the clamping device (3) is made into a clamping tooth (33), and the high-ductility FRP flexible reinforcing device is wrapped on the bridge pier and is directly connected and fixed through the clamping tooth.

Furthermore, the reinforcing steel block (2) is made into a semicircular shape or a trapezoidal shape, and winding on the pier is facilitated.

Furthermore, the reinforcing device is convenient to install and construct on site, the length of the reinforcing device can be directly cut to the required length on site according to actual needs on site, and then the clamping device (3) is installed at the end of the high-ductility FRP cloth (1) to be directly used.

A manufacturing and installing method of a pier flexible reinforcing device based on high-ductility FRP comprises the following steps:

firstly, the reinforcing steel blocks (2) are pasted on the high-ductility FRP cloth (1) at equal intervals through epoxy glue, and when the pier is reinforced, the high-ductility FRP cloth (1) and the reinforcing steel block (2) combined device is cut into required length according to the actual size of the pier. And then the clamping device (3) is arranged on the high-ductility FRP cloth (1) at the two ends of the sheared device through epoxy glue and fixed by bolts. The fixed device is wound on the pier and fixed through the latch (33).

The utility model has the advantages that:

1) the impact force generated by the impact of a ship or a vehicle is reduced through the good flexibility of the high-ductility FRP, and the energy generated by the impact is absorbed through the steel block. The device can better protect ships or vehicles and piers and reduce damage generated in the collision process.

2) The high-ductility FRP is made of waste plastic bottles, so that the construction and development of a green society are facilitated, and plastic pollution is solved.

3) Can tailor required device length as required by oneself, assemble clamping device again, construction convenience is swift pollution-free.

Drawings

FIG. 1 is a schematic view of a trapezoidal section steel block device of the present invention.

FIG. 2 is a schematic view of an overall example device with a trapezoidal cross section according to the present invention.

Fig. 3 is a schematic view of a semicircular section steel block device of the present invention.

FIG. 4 is a schematic view of a semicircular cross-section overall example device of the present invention.

FIG. 5 is a schematic view of a clamping device of the present invention.

In the figure: 1-high-ductility FRP cloth; 2-reinforcing steel blocks; 3-a clamping device; 31-bolt hole; 32-force-bearing stripe; 33-latch;

Detailed Description

Embodiments of the present patent are described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 5:

1) firstly, the reinforcing device is cut into required length.

2) And installing the clamping device on the FRP cloth at two ends of the sheared device through epoxy glue and fixing the FRP cloth by using bolts.

3) And (4) mounting the assembled device on a pier, and fixing the assembled device through the clamping teeth.

Claims

1. The utility model provides a flexible reinforced structure of pier based on high ductility FRP which characterized in that: comprises high-ductility FRP cloth (1), a reinforced steel block (2) and a clamping device (3); the high-ductility FRP cloth (1) is connected with the reinforced steel block (2) through epoxy glue, and the clamping device (3) is fixed with the high-ductility FRP cloth (1) through a nut;

clamping device (3) sets up to the wedge, sets up bolt hole (31) in device both sides, and the face that links to each other with FRP cloth is made stripe (32), and latch (33) are made to clamping device (3) outside, and high ductility FRP's flexible reinforcing apparatus parcel is directly linked to each other fixedly with the latch on the pier.

2. The high-ductility FRP-based pier flexible reinforcing structure as claimed in claim 1, wherein: the reinforcing steel block (2) is made into a semicircular shape or a trapezoidal shape.