| 梁茜雪,李增科.横向联系损伤的既有T梁桥安全性分析[J].南华大学学报(自然科学版),2022,(3):29~36.[LIANG Qianxue,LI Zengke.Safety Analysis of Existing T-beam Bridge with Transverse Connection Damage[J].Journal of University of South China(Science and Technology),2022,(3):29~36.] |
| 横向联系损伤的既有T梁桥安全性分析 |
| Safety Analysis of Existing T-beam Bridge with Transverse Connection Damage |
| 投稿时间：2021-12-01 |
| DOI： |
| 中文关键词: T梁桥 横向联系 拟合 承载能力〖PS22-02梁茜雪OSID码.tif Y4*4,Y#〗 |
| 英文关键词:T-beam bridge horizontal connection consistency bearing capacity |
| 基金项目:国家重点基础研究发展计划(973计划)项目(2015CB057705);南宁市创新人才资助项目(2018-01-04) |
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| 中文摘要: |
| 以一座既有钢筋混凝土简支T梁桥为例,分析采用不同横向联系模拟方式时有限元理论挠度与静载试验实测值之间的相符性,并采用直接概率分析法计算结构可靠指标,研究模型拟合程度对桥梁安全评价结果的影响,提出了荷载试验和可靠度理论综合评估方法,采用以实测值标定的理论模型进行结构可靠性分析,保证了基本随机变量统计参数的准确,实现存在横向联系损伤的T梁桥承载能力的正确判断。 |
| 英文摘要: |
| An existing reinforced concrete simply supported T-beam bridge was taken as an example to analyze the consistency between the theoretical deflection of finite element and the measured value of static load test under different transverse connection simulation methods. The structural reliability index was calculated by direct probability analysis method, and the influence of model fitting degree on the bridge safety evaluation results was studied. The proposed comprehensive evaluation method of load test and reliability theory adopts the theoretical model calibrated with measured values to analyze the structural reliability, which guarantee the accuracy of the statistical parameter of the basic random variables and realize the existence of transverse connection damage T-beam bridge bearing capacity of the correct judgment. |
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