| 铁路桥梁钢筋混凝土构件抗弯可靠度研究 |
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| 引用本文： | 周慧芳,贡金鑫,张玉玲,刘晓光.铁路桥梁钢筋混凝土构件抗弯可靠度研究[J].铁道科学与工程学报,2012,9(4):8-13. |
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| 作者姓名： | 周慧芳 贡金鑫 张玉玲 刘晓光 |
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| 作者单位： | 1. 大连理工大学土木工程学院,辽宁大连,116024
2. 铁道科学研究院,北京,100081 |
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| 基金项目： | 铁道部科技开发计划项目(2010G001-C) |
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| 摘 要： | 研究钢筋混凝土铁路桥梁受弯构件可靠指标,讨论可靠指标随配筋率以及恒荷载与活荷载标准值比值的变化;确定受弯构件可靠指标的范围。基于现行铁路混凝土桥梁规范的容许应力法,得到钢筋混凝土桥梁受弯构件抗力的统计参数,计算表明钢筋混凝土铁路桥梁的可靠指标为5.8～6.5。
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| 关 键 词： | 铁路桥梁 钢筋混凝土 受弯构件 可靠指标 |
Study on flexural reliability of reinforced concrete member of railway bridge |
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| ZHOU Hui-fang
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GONG Jin-xin
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ZHANG Yu-ling
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LIU Xiao-guang.Study on flexural reliability of reinforced concrete member of railway bridge[J].Journal of Railway Science and Engineering,2012,9(4):8-13. |
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| Authors: | ZHOU Hui-fang GONG Jin-xin ZHANG Yu-ling LIU Xiao-guang |
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| Institution: | 1.School of Civil Engineering,Dalian University of Technology,Dalian 116024,China; 2.China Academy of Railway Sciences,Beijing 100081,China) |
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| Abstract: | The reliability index and its variation were studied range of the RC flexural member of the railway bridge with the reinforcement ratio as well as the ratio of characteristic value of dead load and live load.Based on the allowable stress method in the current code for the design on reinforced and pre-stressed concrete structure of railway bridge and culvert,the resistance statistical parameters of flexural member of railway bridge were calculated.The results show that the reliability index of the RC flexural member of the railway bridge is from 5.8 to 6.5. |
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| Keywords: | railway bridge reinforced concrete flexural member reliability |
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