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A platform for research: civil engineering, architecture and urbanism
Negative stiffness local resonator vibration isolation structure
The invention discloses a negative stiffness local resonator vibration isolation structure which comprises a concrete packaging box, a top concrete cap, a bottom concrete cap, a cuboid steel column and two negative stiffness structure cushion layers. The top concrete cap and the bottom concrete cap are located at the upper end and the lower end of the concrete packaging box correspondingly. The cuboid steel column is located between the two negative stiffness structure cushion layers, the two negative stiffness structure cushion layers are located at the upper end and the lower end of the cuboid steel column correspondingly, and the cuboid steel column and the two negative stiffness structure cushion layers are all located in the concrete packaging box. Compared with the prior art, according to the vibration isolation structure designed by the invention, the characteristics that the negative stiffness structure has good damping and energy absorption characteristics and the local resonance type seismic metamaterial can realize low-frequency vibration isolation are utilized, the negative stiffness structure and the local resonance type seismic metamaterial are periodically arranged to form the seismic metamaterial vibration isolation barrier, and the seismic isolation barrier can obtain a low-frequency band gap; and isolation of low-frequency vibration waves generated during running of the high-speed rail is realized.
本发明公开了一种负刚度局域共振器隔振结构，包括混凝土封装箱、顶部混凝土帽、底部混凝土帽、长方体钢柱和两个负刚度结构垫层；所述顶部混凝土帽和底部混凝土帽分别处于混凝土封装箱上下两端；所述长方体钢柱处于两个负刚度结构垫层之间，两个所述负刚度结构垫层分别处于长方体钢柱的上下两端，所述长方体钢柱和两个负刚度结构垫层均处于混凝土封装箱内部。通过本发明设计的隔振结构，与现有技术相比，利用负刚度结构具有很好阻尼、吸能特性及局部共振型地震超材料可实现低频隔振的特点，并将其周期性排列形成地震超材料隔振屏障，该隔震屏障可得到低频带隙，实现对高铁行驶时产生的低频振动波的隔离。
Negative stiffness local resonator vibration isolation structure
The invention discloses a negative stiffness local resonator vibration isolation structure which comprises a concrete packaging box, a top concrete cap, a bottom concrete cap, a cuboid steel column and two negative stiffness structure cushion layers. The top concrete cap and the bottom concrete cap are located at the upper end and the lower end of the concrete packaging box correspondingly. The cuboid steel column is located between the two negative stiffness structure cushion layers, the two negative stiffness structure cushion layers are located at the upper end and the lower end of the cuboid steel column correspondingly, and the cuboid steel column and the two negative stiffness structure cushion layers are all located in the concrete packaging box. Compared with the prior art, according to the vibration isolation structure designed by the invention, the characteristics that the negative stiffness structure has good damping and energy absorption characteristics and the local resonance type seismic metamaterial can realize low-frequency vibration isolation are utilized, the negative stiffness structure and the local resonance type seismic metamaterial are periodically arranged to form the seismic metamaterial vibration isolation barrier, and the seismic isolation barrier can obtain a low-frequency band gap; and isolation of low-frequency vibration waves generated during running of the high-speed rail is realized.
本发明公开了一种负刚度局域共振器隔振结构，包括混凝土封装箱、顶部混凝土帽、底部混凝土帽、长方体钢柱和两个负刚度结构垫层；所述顶部混凝土帽和底部混凝土帽分别处于混凝土封装箱上下两端；所述长方体钢柱处于两个负刚度结构垫层之间，两个所述负刚度结构垫层分别处于长方体钢柱的上下两端，所述长方体钢柱和两个负刚度结构垫层均处于混凝土封装箱内部。通过本发明设计的隔振结构，与现有技术相比，利用负刚度结构具有很好阻尼、吸能特性及局部共振型地震超材料可实现低频隔振的特点，并将其周期性排列形成地震超材料隔振屏障，该隔震屏障可得到低频带隙，实现对高铁行驶时产生的低频振动波的隔离。
Negative stiffness local resonator vibration isolation structure
一种负刚度局域共振器隔振结构
DING HAIBIN (author) / LI CHONGHUI (author) / HUANG NIANYONG (author) / XU CHANGJIE (author) / TONG LIHONG (author) / LIN ZHAORUI (author)
2023-09-12
Patent
Electronic Resource
Chinese
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