Three-dimensional analysis of the seismic response of guyed masts

被引：8
|
作者：
Hensley, Gregory M. [1 ]
Plaut, Raymond H. [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Charles E Via Dept Civil & Environm Engn, Blacksburg, VA 24061 USA
来源：
ENGINEERING STRUCTURES | 2007年 / 29卷 / 09期
基金：
美国国家科学基金会;
关键词：
finite element modeling; guyed mast; seismic response;
D O I：
10.1016/j.engstruct.2006.11.019
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The response of a 120 m-tall guyed mast to three-dimensional seismic excitation is analyzed using the finite-element program ABAQUS. The Northridge earthquake and an amplified El Centro earthquake are applied. The mast is pinned at its base, and guy cables are attached at four equally spaced points along its height. The dynamic tension in the guys is modeled by a nonlinear function based on tests, and periods of slackness in the guys during motion of the system lead to snap tension loads and affect the response. The mast is represented by three-dimensional beam elements. Displacements, bending moments, and base shears are computed for the mast, along with guy tensions. The effects of guy stiffness and pre-tension, mast weight, and directionality of the ground motion are investigated. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2254 / 2261
页数：8
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