| 曲线梁桥支座偏心计算浅析 |
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| 引用本文： | 苏继宏,周军生.曲线梁桥支座偏心计算浅析[J].公路,2006(8):113-116. |
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| 作者姓名： | 苏继宏 周军生 |
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| 作者单位： | 1. 北京建达道桥咨询有限公司,北京市,100016
2. 北京中汉威交通科技有限公司,北京市,100101 |
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| 摘 要： | 根据恒载条件下横桥向双支座反力相等原则,对曲线梁桥设计中常见但尚无定论的支座偏心问题提出了2种计算方法,即最小偏心法和一致偏心法。本文阐述了2种方法的计算原理,推导了圆曲线下相应计算公式,并结合实际工程给出了实用计算表格,比较了2种方法的优缺点,探讨了通常偏心值随曲线半径R、跨数及集中分布荷载比GP/Gq的增大而减小的规律。
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| 关 键 词： | 曲线梁桥 支座 偏心 计算方法 |
| 文章编号： | 0451-0712（2006）08-0113-04 |
| 收稿时间： | 2006-03-16 |
| 修稿时间： | 2006-03-16 |
Approach to Calculation of Bearing Off-Center of Curved Beam Bridge |
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| SU Ji-hong,ZHOU Jun-sheng.Approach to Calculation of Bearing Off-Center of Curved Beam Bridge[J].Highway,2006(8):113-116. |
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| Authors: | SU Ji-hong ZHOU Jun-sheng |
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| Abstract: | Two methods about how to calculate the bearing off-center of curved beam bridge are presented,which is common but no conclusion now.The two methods are minimum off-center method and coincidence off-center method.The principles of the two methods are explained,the formulas and calculation tables with practical engineering are given,and the two methods compared.Last,it is indicated that the off-center values decrease commonly with the increase of curve radius R,number of span and the value G_P/G_q. |
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| Keywords: | curved beam bridge bearing off-center calculation method |
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