趸船锚链拉力水平分力的计算方法  

Calculation method for horizontal tensile force of anchor chain in wharf boat

作　　者：黄旺祥[1] HUNAG Wangxiang(CCCC Water Transportation Consultants Co.,Ltd.,Beijing 100007,China)

机构地区：[1]中交水运规划设计院有限公司,北京100007

出　　处：《水运工程》2023年第12期52-54,共3页Port & Waterway Engineering

摘　　要：锚链系统的受力分析是浮码头设计关键点,《码头结构设计规范》中根据悬链理论给出了锚链长度、锚链拉力计算公式,但对于公式中的锚链拉力的水平分力,规范并未提供相应的计算方法。通过设定不同的假定条件,分析趸船锚链系统受力状态,根据静力平衡分析,给出2种简化方法及推荐方法,并通过案例将各方法计算结果进行对比。结果表明,简化方法考虑单方向力平衡,仅适用于锚链夹角相同的特殊条件;推荐方法考虑平面2个方向力平衡,适用于锚链不同夹角的一般情况。The force analysis of the anchor chain system is a key point in the design of pontoon.According to the suspension chain theory,the calculation formulas for the anchor chain length and anchor chain tension are provided in Design Code for Wharf Structures.For the horizontal tensile force of the anchor chain in the formula,the code does not provide a corresponding calculation method.This paper analyzes the force state of the pontoon anchor chain system by setting different assumptions,proposes two simplified methods and the recommended methods based on static equilibrium analysis,and compares the calculation results of three methods through the case.The results show that the simplified calculation method considers the unidirectional force balance,which is only suitable for special conditions where the anchor chain angle is the same.The recommended method considers the force balance of the two directions of the plane,which is suitable for the general situation of different angles of the anchor chain.

关 键 词：浮码头 趸船 锚链拉力 静力平衡 

分 类 号：U674.249[交通运输工程—船舶及航道工程]