中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊
重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 1984, Vol. 3 ›› Issue (3): 1-12.

• •    下一篇

中美两国公路桥梁标准荷载内力计算的分析与对比

张士铎   

  • 收稿日期:1984-06-02 出版日期:1984-06-25 发布日期:2016-11-07

Analysis and Comparison of Internal Forces Due to Standard Loading Specified in China and U. S. Highway Bridge Codes

Zhang Shiduo   

  • Received:1984-06-02 Online:1984-06-25 Published:2016-11-07

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摘要： 本文目的是对中美两国规定的公路桥梁标准荷载进行对比与计算,包括荷载横向分布系数、冲击系数、车道析减系数规定的探讨。然后采用跨径l=15m,20m,25m,30m,35m,40m,45m的五片主梁的简支梁桥,桥宽净7,按中、美两国的汽车与挂车标准计算跨中最大弯矩与支点最大剪力(反力),分析计算结果找出内在联系与规律。最后,对我国与美国公路桥梁标准荷载与规范规定提出几点看法,仅供修订时参考。

Abstract: The aim of this paper is trying to reveal and compare the standard highway loading both specified in Chinese and U. S. Codes. It includes lateral distribution coefficient of live load, impact coefficient as well as reduction coefficient due to more than one lane. Taking the span length from 15m to 45m with 5 main girders in simply supported girder bridge, with bridge with of 7m. The maximum moment and shear at support are computed in each case. By means of Chinese and U. S. Codes of the trucks and the trailers, the computed results, the interrelations can be drawn. Finally, the conclusive suggestions are presented for reference only.