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首页> 外文期刊>Journal of Infrastructure Systems >Glancing-Blow Impact Forces by a Barge Train on a Lock Approach Wall
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Glancing-Blow Impact Forces by a Barge Train on a Lock Approach Wall

机译：锁定进近壁上的驳船列车掠过的冲击力

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摘要

In 1993 Headquarters, U.S. Army Corps of Engineers, issued the first formal Corps-wide analysis procedure providing guidance for analyzing the effects of barge impact loading on navigation structures. The guidance was rescinded in 2001 due to concerns about the conservatism of the computed results for usual and unusual loadings and accuracy with shallow approach impact angles and direct head-on impact. This paper addresses the interpretation of full-scale, low-velocity, controlled barge train (15-barge) impact experiments conducted at the decommissioned Gallipolis Lock at Robert C. Byrd Lock and Dam, Gallipolis Ferry, W.V. Two sets of methodologies were used to interpret the barge-to-wall impact data: (1) the use of the equations of equilibrium combined with an assumed value for the coefficient of friction between the barge train and the stiff-to-rigid wall, and (2) the energy method. A simplified empirical correlation is presented to calculate the maximum impact force as a function of the linear momentum normal to the wall using forces measured during these full-scale impact experiments. This empirical correlation is the basis for new Corps guidance for calculating glancing-blow impact forces.
机译：1993年，美国陆军工程兵总部总部发布了第一个正式的全兵种分析程序，为分析驳船撞击载荷对导航结构的影响提供了指导。由于担心平时和异常载荷的计算结果的保守性以及接近进近冲击角和直接正面冲击的准确性，该指南于2001年被取消。本文介绍了在退役的加利波利斯船闸（位于罗伯特·C·伯德·洛克和大坝，加利波利斯渡轮，W.V.使用了两组方法来解释驳船到墙的冲击数据：（1）平衡方程的使用与驳船列车和刚硬到刚墙之间的摩擦系数的假定值结合使用， （2）能量法。提出了简化的经验相关性，以使用在这些满量程冲击实验中测得的力来计算最大冲击力，该力是垂直于壁的线性动量的函数。这种经验相关性是新兵团计算掠击冲击力指南的基础。

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