Spectra of Road Surface Roughness on Bridges
Spectra of Road Surface Roughness on Bridges
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发表时间：
1982-09
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通讯作者：
H. Honda;Y. Kajikawa;Tameo Kobori
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作者：
H. Honda;Y. Kajikawa;Tameo Kobori
提出了公路桥梁路面粗糙度的功率谱密度（PSD）。测量了56座桥梁的84条线，并用测量员水平仪测量了路面粗糙度。采用均值为零的平稳正态概率过程假设PSD，采用最大熵法（MEM）将PSD计算为路面粗糙度的实测值。通过数值算例，得到了路面粗糙度在桥梁上的谱特征信息，并利用移动车辆作用下桥梁的动力响应分析给出了相应的PSD。
The power spectral density (PSD) of road surface roughness on highway bridges is presented. Eighty-four lines of 56 bridges were measured and the road surface roughness was measured by surveyor's level. The PSD is assumed by a stationary normal probability process with a zero mean value, and is calculated by a maximum entropy method (MEM) to a measured value of road surface roughness. Numerical examples are presented to obtain the information of road surface roughness on bridges in spectral characteristics, and to give the appropriate PSD using the dynamic response analysis of bridges under moving vehicles.