| 军用桥梁疲劳可靠性分析中的荷载效应 |
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| 引用本文： | 胡业平,屠义强. 军用桥梁疲劳可靠性分析中的荷载效应[J]. 解放军理工大学学报(自然科学版), 2004, 5(5): 39-41 |
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| 作者姓名： | 胡业平 屠义强 |
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| 作者单位： | 解放军理工大学,工程兵工程学院,江苏,南京,210007;解放军理工大学,工程兵工程学院,江苏,南京,210007 |
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| 摘 要： | 通过对军用桥梁荷载的统计分析，利用雨流法对军用桥梁应力幅谱△σi-ni进行模拟计算，根据线性累积损伤准则，推导出用于军用桥梁疲劳可靠性分析的等效应力幅△σe的计算公式。定义了便于实际应用的荷载效应比和等效应力换算系数。给出的实例分析表明，该方法所得结果是合理的，可在军用桥梁疲劳可靠性分析中加以利用。
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| 关 键 词： | 军用桥梁 疲劳可靠性 荷载效应 等效应力幅 |
| 文章编号： | 1009-3443(2004)05-0039-03 |
| 修稿时间： | 2004-05-19 |
Load Effects for Fatigue Reliability Analysis of Military Bridge |
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| HU Ye-ping and TU Yi-qiang. Load Effects for Fatigue Reliability Analysis of Military Bridge[J]. Journal of PLA University of Science and Technology(Natural Science Edition), 2004, 5(5): 39-41 |
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| Authors: | HU Ye-ping and TU Yi-qiang |
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| Affiliation: | Engineering Institute of Engineering Corps, PLA Univ.of Sci. & Tech., Nanjing 210007, China;Engineering Institute of Engineering Corps, PLA Univ.of Sci. & Tech., Nanjing 210007, China |
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| Abstract: | St ress range spect rum $Ri- ni can be o btained by statistical analysis o f military bridge load andsimulat ion calculating based on rainf low cy cle count ing metho d. According to linear accumulat ive damagecr iteria, the equat ion for equiv alent st ress rang e for fat ig ue reliability analysis of military br idge is presented.Mo reover the load ef fect ratio and conversion coeff icient of equiv alent st ress is def ined for practical application. T he result s show that such method is reasonable and w o rthy of using in fatig ue reliability analysis. |
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| Keywords: | military bridge fatigue reliability load effects equivalent stress range |
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