High-performance pipe pile with built-in shock absorbing device and preparation method thereof

Abstract

The invention relates to the technical field of building foundation engineering, in particular to a high-performance pipe pile with a damping device and a preparation method of the high-performance pipe pile. A prestressed reinforced concrete pipe pile body is made by pouring pipe pile high-strength concrete, pipe pile end plates are arranged at the two ends of the pipe pile high-strength concretecorrespondingly, the pipe pile damping device is installed on the column body of the prestressed reinforced concrete pipe pile body, and the two sides of the pipe pile damping device are fixedly connected with the pipe pile end plates at the two ends correspondingly through pipe pile prestressed main reinforcements; and a damping device protection clamping part sleeves the pipe pile damping device. According to the preparation method of the high-performance pipe pile with the damping device, the damage to a pipe pile caused by vibration is greatly reduced by the damping device, the damping device converts vibration energy into internal energy through the resistance of a high-performance damping spring, the whole system is driven to rotate, the action of reducing motion energy is consumedthrough various blocking effects of free vibration attenuation, and therefore the seismic performance of the pipe pile is improved.

Description

technical field [0001] The invention relates to the technical field of building foundation engineering, in particular to a high-performance pipe pile with a shock absorbing device and a preparation method thereof. Background technique [0002] With the in-depth research on the seismic performance of PHC pipe piles abroad, and its various improvement measures. The improvement measures mainly include: pipe pile core filling, stirrup reinforcement (stirrup ratio), high-strength stirrup, adding non-prestressed tendons, using high elongation prestressed tendons, and pasting glass fibers in the plastic hinge area, etc. Among them, stirrup reinforcement and non-prestressed tendons are the most researched. Because the stirrups used by traditional pipe piles to resist horizontal shear force are mainly guaranteed by the structure, the level of reinforcement ratio in the longitudinal direction affects the overall shear resistance of pipe piles. The existing pipe piles have poor bendi...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a high-performance pipe pile with its own shock absorber and its production method, to overcome the deficiencies in the prior art mentioned above, to improve the seismic performance of the pipe pile itself, and to solve the poor bending resistance of the existing technology. The failure form is brittle failure, the seismic performance is low, and the application is limited

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