Anti-seismic pier with built-in energy consumption device and construction method thereof

A technology for energy-dissipating devices and bridge piers, which is applied to protection devices, bridges, bridge parts, etc., can solve problems such as losses and high bridge construction costs, and achieve the effects of strong applicability, reduced displacement, and improved seismic performance

Inactive Publication Date: 2020-11-20
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The cost of bridge construction is high, and once it is damaged by an earthquake, it will cause huge losses

Method used

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  • Anti-seismic pier with built-in energy consumption device and construction method thereof
  • Anti-seismic pier with built-in energy consumption device and construction method thereof
  • Anti-seismic pier with built-in energy consumption device and construction method thereof

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing.

[0027] Such as figure 1 and figure 2 As shown, the present invention includes a hollow pier 2, the top of the hollow pier 2 is provided with a bridge support 1, and the bottom is provided with a pier foundation 12, and the hollow pier 2 bears all the loads transmitted by the upper bridge support 1. 7 steel bars. There are pipe piles inside the hollow pier 2, which are composed of steel pipe piles 3 and cast-in-place foam concrete 4, placed inside the hollow pier 2, and do not bear the upper load. The centers coincide. The foamed concrete 4 is poured into the steel pipe pile 3 after being mixed, which can be carried out synchronously with the concrete pouring of the hollow pier 2 without affecting the construction period. The bottom of the steel pipe pile 3 is fixedly connected to the pier foundation 12, which can be poured or welded; a rubber pad 6 is placed between th...

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PUM

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Abstract

The invention discloses an anti-seismic pier with a built-in energy dissipation device and a construction method thereof. A pier is included. A tubular pile is arranged in the pier; a plurality of rows of shock absorption and energy dissipation devices are arranged between the pier and the tubular pile; each row of shock absorption and energy dissipation devices at least comprises a group of shockabsorption and energy dissipation devices which are symmetrically arranged; and each shock absorption and energy dissipation device comprises energy dissipation assemblies which are distributed in acrossed mode, the two ends of each energy dissipation assembly are fixed to the pier and the inner wall of the pipe pile respectively, each energy dissipation assembly comprises a set of air cylindersand piston rods, the air cylinders and the piston rods are symmetrically distributed, pistons are arranged at the ends of the piston rods, and air holes are distributed in the pistons. The pier and the method are high in applicability; an anti-seismic capacity of the pier can be improved; a built-in shock absorption and energy dissipation device and a built-in steel pipe foam concrete pile can play a role in energy dissipation and shock absorption so that displacement of the pier under a seismic load is reduced, and the anti-seismic property of the pier is improved; and when an earthquake isfinished, the air holes are eliminated from or enter the air cylinder to balance air pressure inside and outside the air cylinder without applying an extra constant load to the pier.

Description

technical field [0001] The invention relates to an anti-seismic bridge pier and a construction method thereof, in particular to an anti-seismic bridge pier with a built-in energy dissipation device and a construction method thereof. Background technique [0002] With the rapid development of my country's social economy, infrastructure construction continues to extend to remote mountainous areas. Bridge engineering construction plays a pivotal role in traffic engineering. Bridge construction costs are high, and once damaged by an earthquake, it will cause huge losses. According to the existing earthquake information, pier earthquake damage is the most common form of earthquake damage in bridges. Bridge pier is the key component of bridge stress. The deformation of reinforced concrete pier caused by earthquake will lead to disasters such as pier cracking, bridge falling, collision between girders and even bridge pier collapse, which seriously affects people's production and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E02D5/28E02D31/08
CPCE01D19/02E02D5/285E02D31/08
Inventor 高玉峰何乃福王景全陈克坚曾永平张飞戴光宇张煜舒爽陈硕叶至韬
Owner HOHAI UNIV
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