Vibration studies and tests of a suspension bridge
Vibration studies and tests of a suspension bridge
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DOI：
10.1002/eqe.4290060505
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发表时间：
1978-09
影响因子：
4.5
通讯作者：
A. M. Abdel-Ghaffar
中科院分区：
文献类型：
--
作者：
A. M. Abdel-Ghaffar
圣佩德罗-终端岛悬索桥的自然频率是通过安装在桥上不同位置的灵敏地震仪测量交通激励的垂直振动而相当准确地确定的。计算并绘制了记录的垂直运动的傅立叶振幅谱。测量结果显示了一个宽频带的自然频率。垂直和扭转固有频率的结果与计算的频率相关。现场测量结果与计算值吻合较好。最后，还提出了为取得更好结果而提出的进一步建议。
The natural frequencies of the San Pedro-Terminal Island Suspension Bridge were fairly accurately determined by measuring traffic-excited vertical vibrations with sensitive seismometers mounted at various locations on the bridge. The Fourier amplitude spectrum of the recorded vertical movements was computed and plotted. The measurements revealed a wide band of natural frequencies. The results for the vertical and torsional natural frequencies were correlated with the computed frequencies. The results of the field measurements showed reasonable agreement with the computed values. Finally, further recommendations toward obtaining better results were also indicated.