Steel-composite material anti-collision facility structure impact resistance device and evaluation method

Abstract

The invention relates to a steel-composite material anti-collision facility structure impact resistance device and a method for evaluating and measuring the impact resistance of a steel-composite material anti-collision facility structure. Belongs to the field of road and bridge anti-collision facility testing. An anti-collision facility supporting frame of the device is used for arranging a steel-composite material anti-collision facility, a pendulum bob device is located in a pendulum bob limiting device, and the pendulum bob device moves along the pendulum bob limiting device and collides with the steel-composite material anti-collision facility on the anti-collision facility supporting frame; and the data acquisition system is used for acquiring the movement speed of the pendulum bob device and the deformation data of the steel-composite material anti-collision facility. According to the steel-composite material anti-collision facility structure impact resistance device and the evaluation and testing method, a plurality of characteristic indexes are integrated, the standard is clear, the steps are definite, the operability is high, good economical efficiency and generalizability are achieved, and a powerful supplement is provided for the blank of an existing test and evaluation system in the field of anti-collision facilities.

Description

technical field [0001] The invention relates to a device and an evaluation method for the impact resistance of a steel-composite anti-collision facility structure, and belongs to the field of road and bridge anti-collision facility testing. Background technique [0002] With the increasing number of bridges and the increasing demand for shipping, the probability of the piers of channel bridges being hit by ships has greatly increased. Ship collision accident not only threatens the passage safety of ships, but also seriously affects the operation safety of bridges, bringing huge threats to personal safety and property losses, and sometimes even causing ecological disasters. [0003] In order to reduce the economic losses caused by accidents such as ship-bridge collisions and improve the safety of public infrastructure, waterway bridges are currently generally equipped with pier-column anti-collision facilities that combine steel and fiber composite materials (ie steel-composi...

AI Technical Summary

Problems solved by technology

Designers have difficulties in the process of formulating the scheme of bridge anti-collision facilities

[0004] In the patent document with the publication number CN208533352, a pier steel composite material anti-collision facility is disclosed. The patent adopts an anti-collision ring and a pier column sleeve connection, and a buffer mechanism is installed inside. The anti-collision ring is composed of two half connectors composition; the protection performance of the anti-collision facilities in this patent does not have a clear index, and the impact resistance performance of the structure after the collision of the ship is unknown, so it is difficult to compare with other anti-collision facilities

[0005] In the patent document with the publication number CN205688406U, a reinforced pontoon-type composite material anti-collision facility is disclosed; the patent is formed by connecting several pontoon units, and the pontoon units include hollow cylindrical surfaces and reinforcing ribs; the patent The impact resistance of the medium structure under different degrees of impact is not clear, and its impact resistance cannot be obtained intuitively

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