| 装配式梁桥横向协同工作性能度量指标的研究 |
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| 引用本文： | 张凯龙,温学磊,淡丹辉. 装配式梁桥横向协同工作性能度量指标的研究[J]. 城市道桥与防洪, 2020, 0(2): 146-149,M0016,M0017 |
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| 作者姓名： | 张凯龙 温学磊 淡丹辉 |
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| 作者单位： | ;1.上海市城市建设设计研究总院(集团)有限公司;2.同济大学土木工程学院桥梁工程系 |
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| 基金项目： | 国家重点研发计划(2017YFF0205600);住房和城乡建设部研究开发项目(K92018111);上海市科委科研项目(17D1204303)。 |
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| 摘 要： | 为了表征运营期间装配式梁桥的横向协同工作性能,提出了一种间接度量指标——相邻预制梁间的应变相关系数;同时建立了装配式梁桥的简化力学模型,通过推导建立了该指标的解析表达式。理论分析和数值仿真研究表明,在保证足够的样本长度条件下,交通流荷载趋向统计稳定,此时结构特性成为该度量指标的唯一影响因素,证明了该指标具备表征装配式梁桥横向协同工作性能的条件。
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| 关 键 词： | 装配式梁桥 横向协同工作性能 相关系数 交通流 概率密度函数 |
Study on Measure Index of Transverse Collaborative Working Performance of Prefabricated Girder Bridge |
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| Zhang Kailong,Wen Xuelei,Dan Danhui. Study on Measure Index of Transverse Collaborative Working Performance of Prefabricated Girder Bridge[J]. Urban Roads Bridges & Flood Control, 2020, 0(2): 146-149,M0016,M0017 |
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| Authors: | Zhang Kailong Wen Xuelei Dan Danhui |
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| Abstract: | An indirect measure index of strain correlation coefficient between the adjacent prefabricated girders is proposed to represent the transverse collaborative working performance of prefabricated girder bridge during operation.A simplified mechanical model of prefabricated girder bridges is established.By deducing,an analytical expression of this index is established.The theoretical analysis and numerical simulations show that traffic flow load tends to be statistically stable under the condition of guaranteeing the enough sample length.At the moment,the structural characteristic becomes the only influencing factor of this measure index,which proves that this index can be used to characterize the transverse collaborative working performance of prefabricated girder bridges. |
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| Keywords: | prefabricated girder bridge transverse collaborative working performance correlation coefficient traffic flow probability density function |
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