Effect of the Froude number on assessment of the bridge afflux
Effect of the Froude number on assessment of the bridge afflux
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DOI：
10.1680/wama.2008.161.2.97
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发表时间：
2008-04
期刊：
影响因子：
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通讯作者：
G. Seckin;D. Knight;S. Atabay;N. Seçkin
中科院分区：
文献类型：
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作者：
G. Seckin;D. Knight;S. Atabay;N. Seçkin
本文介绍了在具有不同粗糙度条件的对称复合渠道水槽中拱桥和直桥桥收缩的实验室模型测试结果。测试方案采用了四种不同类型的桥梁模型，即单孔半圆拱桥、多孔半圆拱桥、单孔椭圆拱桥以及有桥墩和无桥墩的直桥面桥。针对复合渠道案例检验了针对单截面形状拱桥收缩开发的 Biery 和 Delleur 方法的有效性。还研究了弗劳德数的不同定义对 Biery 和 Delleur 方法应用的影响。结果表明，Biery 和 Delleur 方法与当前研究中提供的伯明翰大学数据相当吻合，前提是弗劳德数的定义方式与最初设想的相同。然而，可能会导致重大错误......
This paper presents the findings of laboratory model testing of arch and straight-deck bridge constrictions, in a symmetrical compound channel flume having different roughness conditions. Four different types of bridge models, namely a single-opening, semicircular arch bridge, a multiple-opening, semicircular arch bridge, a single opening, elliptic arch bridge, and a straight-deck bridge with and without piers, were used in the testing programme. The validity of the Biery and Delleur method developed for the single cross-sectional-shaped arch bridge constrictions was examined for a compound channel case. The effect of different definitions of the Froude number on the application of the Biery and Delleur method was also investigated. The results showed that the Biery and Delleur method agreed reasonably well with the University of Birmingham data presented in the current study, provided that the Froude number was defined in the same way as originally envisaged. Significant errors may result, however, from ...