| 人行桥标准行人激励荷载的构建与验证 |
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| 引用本文： | 樊健生,陈宇,聂建国.人行桥标准行人激励荷载的构建与验证[J].计算力学学报,2012,29(4):538-544. |
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| 作者姓名： | 樊健生 陈宇 聂建国 |
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| 作者单位： | 清华大学土木工程系土木工程安全与耐久教育部重点实验室,北京,100084 |
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| 基金项目： | 长江学者和创新团队发展计划项目(IRT00736); 教育部新世纪优秀人才支持计划(NCET-08-0318) 资助项目. |
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| 摘 要： | 基于Young和Ebrahimpour等学者对行人步行荷载竖向激励特征的研究成果,利用傅立叶级数模型构建了行人正常步行状态下的标准荷载激励,并从曲线形状和引起人行桥动力反应两方面与8组实测的步行荷载进行比较,验证了标准步行荷载的准确性。通过理论分析进一步讨论了均方根加速度动力反应arms与动载因子ci和相位角φi的关系,并给出了具有参考价值的结论。
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| 关 键 词： | 人行桥 标准步行荷载 动载因子 均方根加速度反应 |
| 收稿时间： | 3/7/2011 12:00:00 AM |
| 修稿时间： | 2011/9/19 0:00:00 |
Modeling and confirmation of pedestrian induced walking load on footbridge |
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| FAN Jian-sheng,CHEN Yu and NIE Jian-guo.Modeling and confirmation of pedestrian induced walking load on footbridge[J].Chinese Journal of Computational Mechanics,2012,29(4):538-544. |
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| Authors: | FAN Jian-sheng CHEN Yu and NIE Jian-guo |
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| Institution: | Key Laboratory of Civil Engineering Safety and Durability of China Ministry of Education, Department of Civil Engineering, Tsinghua University, Beijing 100084, China;Key Laboratory of Civil Engineering Safety and Durability of China Ministry of Education, Department of Civil Engineering, Tsinghua University, Beijing 100084, China;Key Laboratory of Civil Engineering Safety and Durability of China Ministry of Education, Department of Civil Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Based on Young and Ebrahimpour’s researches on characteristics of pedestrian-induced dynamic loads,a standard model of vertical walking load using Fourier series is proposed.The accuracy and usability of the model are verified by comparing with eight measured walking loads.Through the theoretical analysis,the relationships among root mean square(RMS) acceleration,dynamic load factor and phase are further discussed,and some valuable conclusions are obtained. |
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| Keywords: | footbridge standard model of vertical walking load dynamic load factor RMS acceleration |
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