| 简支梁长桥桥墩的偏心安全性研究 |
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| 引用本文： | 陈丹华. 简支梁长桥桥墩的偏心安全性研究[J]. 南方冶金学院学报, 2008, 29(1): 57-60 |
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| 作者姓名： | 陈丹华 |
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| 作者单位： | 华东交通大学土木建筑学院,南昌330013 |
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| 摘 要： | 我国铁路桥梁设计中，列车荷载按中一活载取值．对简支梁直线桥桥墩的纵向偏心检算时，常将单孔轻载作为加载图示．从轨面制动力的动力特性、最不利加载工况两方面入手，对铁路简支梁长桥桥墩的偏心安全性进行了计算和讨论，分析了制动力作用下长桥桥墩受力特点．
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| 关 键 词： | 铁路桥梁 制动力 偏心 加载工况 |
| 文章编号： | 1007-1229（2008）01-0057-04 |
| 收稿时间： | 2007-09-03 |
| 修稿时间： | 2007-09-03 |
Eccentricity Safety Study for Long Bridge's Pier of Simple Supported Beam |
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| CHEN Dan-hua. Eccentricity Safety Study for Long Bridge's Pier of Simple Supported Beam[J]. Journal of Southern Institute of Metallurgy, 2008, 29(1): 57-60 |
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| Authors: | CHEN Dan-hua |
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| Affiliation: | CHEN Dan-hua (College of Civil Engineering and Architecture, East China Jiaotong University,Nanchang 330013, China) |
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| Abstract: | In China＇s railway bridge design, standard railway live load specified by P.R.C is designated for using. In checking longitudinal eccentricity for straight bridge piers of simple supported beam, single aperture light loading pattern is often used. From two aspects which are dynamic performance of rail surface＇s braking force and the most disadvantageous loading conditions, the paper calculates and discusses eccentricity security for long bridge piers of railway simple supported beam. The paper analyses long bridge pier＇s forcing features under braking force which would afford reference for perfecting provisions of bridge specifications on the braking force. |
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| Keywords: | railway bridge braking force eccentricity load cases |
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