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首页> 外文会议>International Conference on Intelligent System and Applied Material >The dynamic response of a steel box-girder footbridge under synchronized human stance excitation
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The dynamic response of a steel box-girder footbridge under synchronized human stance excitation

机译：同步人体姿态激励下钢箱梁行人桥的动态响应

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摘要

In order to research into the dynamic response of a steel box-girder continuous beam footbridge excited by a synchronised human stance excitation, a in-situ test and a code comparison were conducted. Sixteen model 891-B accelerometers of vertical, horizontal and lateral directions were instrumented on the bridge and the vibration signals were aqcuired at a sampling frequency of 512 Hz. The acceleration data were transformed into frequency domain to find out the fundamental frequency of the bridge, and the frequency weighted root-mean-square acceleration data were analysed to evaluate the bridge's vibration serviceability under synchronised human excitation. Further more, the international standard of BSI5400, Bro2004, EN1990, and ISO10137 were applied to the aquired acceleration data to compare their applicability. The results indicate that the dynamic response of the footbridge will not invite uncomfortableness of the pedestrians.
机译：为了研究通过同步人体姿势激发激发的钢箱梁连续梁行桥的动态响应，进行了原位测试和代码比较。垂直，水平和横向方向的十六型891-B加速度计在桥上仪器，振动信号以512Hz的采样频率Aqcuired。将加速度数据转换为频域以找出桥的基频，分析频率加权根均方加速度数据以评估同步人体激发下的桥梁的振动可用性。此外，BSI5400，Bro2004，EN1990和ISO10137的国际标准应用于水入加速数据，以比较其适用性。结果表明，行人桥的动态响应不会邀请行人的不舒服。

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