基于屈曲约束支撑的海洋平台振动控制

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet) Pub Date : 2011-04-16 DOI:10.1109/CECNET.2011.5769205

Jingjing Zhang, Jigang Zhang

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引用次数: 0

摘要

传统的支撑结构在强震作用下容易发生屈曲。不能满足结构的要求。滞回性能稳定，吸能能力好。屈曲约束支撑(BRB)可以经历完全反向的轴向屈服循环而不损失刚度和强度。海洋平台结构复杂，周围环境恶劣。研究平台结构振动控制具有重要意义。基于ANSYS的带隔震层BRB结构在地震和冰荷载作用下的模拟研究。结果表明，BRB通过非弹性变形来耗散振动能量，从而降低了海洋平台的地震响应，显著抑制了最大加速度。提高了抗震性能。因此，在对水平荷载和地震荷载要求较高的结构中，采用具有简单双线性弹性的BRB。它有一个美好的未来。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Vibration control of ocean platform based on buckling-restrained braces

The conventional brace appears buckling easily under the strong earthquake. and it can not meet the demand of the structure. The hysteretic behavior is stable and the energy absorption capacity is good. The buckling — restrained brace (BRB) can undergo fully reversed axial yield cycles without loss of stiffness and strength. Ocean platform structure is complicated, and the surrounding environment is harsh. It is significant to study the platform structure vibration control. BRB structure with isolation layer under earthquake and ice load simulation is studied based on ANSYS. The results show that the BRB can reduce the seismic responses of the ocean platform and significantly suppress the maximal acceleration by dissipating the vibration energy through inelastic deformation. The seismic performance is improved. Therefore BRB with simlpe bilinear resilisence is adoptadopted in structure wiih more reqirment to resist horizontal and seismic load. It has a good future.

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2011 International Conference on Consumer Electronics, Communications and Networks (CECNet)

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