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首页> 外文期刊>Composite Structures >Layered composite entangled wire materials blocks as pre-tensioned vertebral rocking columns
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Layered composite entangled wire materials blocks as pre-tensioned vertebral rocking columns

机译：层状复合缠绕金属丝材料块作为预应力椎骨摇摆柱

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摘要

This work focuses on entangled wire materials as an option for use between segments of a novel self-centring bridge pier inspired from the human spine mechanism to increase energy dissipation capability of the pier in rocking. A comprehensive set of free-decay vibration tests was conducted on small-scale columns with and without entangled wire materials. Wooden blocks are used as vertebrae with entangled wire materials as intervertebral disks. The whole system is tied together using a pre-tensioned tendon. Dynamic properties of columns (i.e. frequency and damping ratio) were then identified and compared. It is found that the use of entangled wire materials significantly increases the energy dissipation capacity of the system during rocking. This finding is very encouraging for future use of entangled wire materials composite systems in large-scale testing of the proposed rocking column, while their shear and axial stiffness needs be improved to reduce large shear and axial deformations.
机译：这项工作着重于纠缠的金属丝材料，作为在人为脊柱机制的启发下在新型自定心桥墩的各段之间使用的一种选择，以增加墩墩在晃动时的能量消散能力。在带有和不带有缠结金属丝材料的小规模色谱柱上进行了一套全面的自由衰减振动测试。木块被用作椎骨，而金属丝则被用作椎间盘。整个系统使用预紧的腱捆绑在一起。然后确定并比较了圆柱的动态特性（即频率和阻尼比）。已经发现，缠结的线材的使用显着增加了摇摆期间系统的能量消散能力。这一发现对于缠结线材复合材料系统在拟议的摇摆柱的大规模测试中的未来使用非常令人鼓舞，同时需要改善其剪切和轴向刚度以减少较大的剪切和轴向变形。

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