A construction method of jujube core type composite anti-collision system for bridge piers

Abstract

The invention discloses a date-pit-type composite anti-collision system for a pier and a construction method for the date-pit-type composite anti-collision system for the pier. The composite anti-collision system comprises a prepressing-type anti-collision device which is arranged at the outer side of the pier, and a floating-type external retaining device which sleeves the outer side of the prepressing-type anti-collision device, wherein the floating-type external retaining device is in a date pit shape, and is formed by connecting a plurality of anti-collision boxes which float on the water surface; the prepressing-type anti-collision device comprises one or a plurality of date-pit-type anti-collision structures; each date-pit-type anti-collision structure comprises an external cofferdam, and an energy consumption layer which is arranged at the inner side of the external cofferdam and is composed of a plurality of energy consumption rings; each external cofferdam is in the date pit shape; each energy consumption ring comprises an elastic ring which is formed through prepressing, and an external protective sleeve which sleeves the outer side of the elastic ring. The construction method comprises the following steps of (1) building a horizontal construction platform; (2) conveying parts in place; (3) constructing fixing elements at the outer side of the pier; (4) constructing the prepressing-type anti-collision device; (5) constructing the floating-type external retaining device. The date-pit-type composite anti-collision system for the pier and the construction method for the date-pit-type composite anti-collision system for the pier have the advantages that the design is reasonable, the construction is simple and convenient, the use effect is good, and the pier can be effectively protected.

Description

technical field [0001] The invention belongs to the technical field of bridge safety protection, and in particular relates to a construction method of a jujube-core type composite anti-collision system for bridge piers. Background technique [0002] With the rapid development of the economy, the water shipping industry has gradually prospered. There are more and more ships sailing on the water, and ship collision accidents occur from time to time, resulting in huge economic losses. Nowadays, in the process of construction of transportation facilities, the requirements for traffic safety facilities are becoming more and more stringent, among which the anti-collision facilities of bridge piers in water are extremely important safety protection facilities. The so-called bridge anti-collision technology is to prevent bridges from being hit by floating objects or ships, and to avoid or reduce damage to bridges and ships due to collisions, as well as accidents caused by ship damag...

AI Technical Summary

Problems solved by technology

However, at present, most of the bridge anti-collision facilities used are designed based on the principles of energy absorption and momentum buffering. Although the rigidity is sufficient, there are defects in flexibility, and insufficient consideration is given to protecting ships, changing the direction of ships, and unloading force by taking advantage of the momentum. , so the anti-collision effect is not very good, and the traffic protection effect is limited, so it causes the bottleneck of the development of bridge anti-collision facilities today.

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