Impact of Key System Parameters on the In-Plane Dynamic Response of a Cable Network
Impact of Key System Parameters on the In-Plane Dynamic Response of a Cable Network
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DOI：
10.1061/(asce)st.1943-541x.0000847
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发表时间：
2014-03
期刊：
影响因子：
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通讯作者：
J. Ahmad;Shaohong Cheng
中科院分区：
文献类型：
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作者：
J. Ahmad;Shaohong Cheng
摘要 利用枕木将经历过或容易发生剧烈运动的拉索与相邻拉索连接起来形成索网，已成功应用于多座斜拉桥上，以控制斜拉索振动。然而，仍然缺乏成熟的枕木设计指南。本研究旨在确定决定电缆网络面内动态行为的关键系统参数并评估它们各自的作用。将开发由单行横向刚性枕木互连的 n 条水平敷设电缆组成的通用电缆网络的分析模型，在此基础上从系统特征方程中确定关键系统参数。将进行广泛的参数研究，以评估这些参数对电缆网络动态响应的影响。这项研究的结果预计不仅能够理解我们对与电缆网络相关的机制的理解，而且还能揭示......
AbstractUsing crossties to connect a cable which has experienced or is prone to violent motions with its neighbors and form a cable network has been successfully applied to a number of cable-stayed bridges to control stay cable vibrations. However, matured guidelines for designing crossties are still lacking. The present study aims at identifying key system parameters which dictate the in-plane dynamic behavior of a cable network and evaluate their respective roles. An analytical model of a general cable network consisting of n horizontally laid cables interconnected by a single line of transverse rigid crossties will be developed, based on which the key system parameters will be identified from the system characteristic equation. An extensive parametric study will be conducted to assess the impact of these parameters on the dynamic response of cable networks. The outcome from the study is expected to not only comprehend our understanding in the mechanics associated with cable networks, but also shed ligh...