Bridge pier protection device

Abstract

The invention discloses a bridge pier protection device. The bridge pier protection device comprises a plurality of protection unit blocks which are arranged on the outer surface of a bridge pier and connected with one another; each protection unit block comprises a unit block shell of a barrel structure and round pipes which are arranged inside the unit block shell in an array mode; the round pipes are connected through a distributed type force dispersion frame; and the positions among the round pipes inside the unit block shells are filled with buffering layers. The stepped energy dispersion process can be achieved when the device comes across impacts of different energy grades, and the bridge pier protection device can meet the requirements of different protection energy grades; the longer impact displacement can be provided, and the impact time is prolonged; and the bridge pier protection device is composed of the unit blocks, so that the overall cost is low and installation and maintenance are convenient.

Description

technical field [0001] The invention relates to the field of structural engineering protection, in particular to a bridge pier protection device. Background technique [0002] With the development of the market economy, traffic has spread all over the country. Due to various geological disasters in mountainous areas and canyons, the protection of bridge piers in these areas has not been paid much attention, so that the ability of bridges to resist adverse disasters is far away. Far from enough, it has brought a severe test to the safety of the bridge; in the cross-river bridge, due to human factors, the market is accompanied by various ship collision accidents, resulting in various degrees of damage to the pier, and even breaking the pier and causing the bridge to collapse ;In the process of urban construction, the municipal road network is becoming increasingly dense, and various municipal viaduct bridges are intricate, and with the substantial increase in traffic volume, t...

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Problems solved by technology

[0002] With the development of the market economy, traffic has spread all over the country. Due to various geological disasters in mountainous areas and canyons, the protection of bridge piers in these areas has not been paid much attention, so that the ability of bridges to resist adverse disasters is far away. Far from enough, it has brought a severe test to the safety of the bridge; in the cross-river bridge, due to human factors, the market is accompanied by various ship collision accidents, resulting in various degrees of damage to the pier, and even breaking the pier and causing the bridge to collapse ;In the process of urban construction, the municipal road network is becoming increasingly dense, and various municipal viaduct bridges are intricate, and with the substantial increase in traffic volume, the risk of vehicles colliding with bridge piers increases greatly; In addition to the huge direct economic loss, the direct economic loss and social impact caused by the interruption of traffic lines are even more immeasurable

[0003] At present, there is no special protection design for various bridge piers with impact risks, and only a few bridge piers have simple protection measures according to needs; although these simple measures can slow down the impact damage between impactors and bridge piers to a certain extent , but there are still many shortcomings and deficiencies; for example, the protective structure used is simple, the form of damage energy consumption is single, and it cannot effectively protect against high-energy impact objects; the relevant pier protection mainly adopts some simple protective measures, such as: steel casing, concrete Reinforced bridge piers and generally relatively simple flexible protective bodies, etc.; when the bridge piers are impacted, the existing flexible bridge pier protective devices have a simple and rough structure and a single form of energy consumption. When facing high-energy impacts, most of the energy is still borne by the bridge piers. The bridge pier is still subject to a relatively large impact force, and this type of protection cannot effectively reduce the impact force on the bridge pier, so that it cannot provide proper protection for the bridge pier; the existing protection device still has a single fixed structure and cannot Adjust its own stiffness to adapt to different protection energy requirements; and claim high cost, installation and maintenance costs

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