拱式纵梁码头船舶撞击试验及动力响应特性研究  

Study on experiment of ship collision and dynamic response ofarched longitudinal beam wharf

作　　者：翟秋[1] 徐颖 王鹏 王华坤 侯捷 ZHAI Qiu;XU Ying;WANG Peng;WANG Hua-kun;HOU Jie(College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing,Jiangsu 210098,China;Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]河海大学港口海岸与近海工程学院,江苏南京210098 [2]上海市政工程设计研究总院(集团)有限公司,上海200092

出　　处：《中国港湾建设》2023年第3期38-43,共6页China Harbour Engineering

基　　金：中央高校基本科研业务费资助项目(2019B12014)。

摘　　要：拱式纵梁码头是一种新型的码头结构,有着跨度大、充分发挥基桩承载能力的优势。该结构适用于外海深水条件,船撞力作用下的码头结构力学性能值得关注。通过实船试验,研究不同靠泊速度、不同压载条件下,船舶靠泊拱式纵梁码头时主要构件的动力响应指标。基于有限元软件,建立船舶碰撞拱式纵梁码头数学模型,并通过物理模型试验验证其正确性。将码头长度、宽度、基桩尺寸、桩长相同的拱式纵梁码头和梁板式高桩码头,用相同的船舶以相同的撞击速度、撞击位置进行船舶撞击数值模拟,分别对动力响应指标进行分析。研究结果表明:拱式纵梁码头有较强的抵抗水平荷载能力,但在基桩与墩台连接处应力集中现象明显,设计时需进行局部加固。研究结果可为拱式纵梁码头在工程中的推广应用提供指导。An arched longitudinal beam wharf is a new type of structure with large span and can make full use of the bearing capacity of piles.The structure is suitable for offshore and deep-water conditions,and the mechanical properties of such a wharf under ship impact are worth close consideration.Based on a full-scale experiment of ship berthed to an arched longitudinal beam wharf,the dynamic response indexes of the main components were studied when a ship berths to the wharf under different berthing speeds and ballast conditions.Based on the finite element analysis software,a numerical model of ship impact on an arched longitudinal beam wharf is established,and its validity is verified by physical model experiments.Ship collision was numerically simulated with the same ship at the same impacting speed and location of an arched longitudinal beam wharf and a beam-slab piled wharf with the same wharf length and width and the same dimension and length of piles.The dynamic response indexes are analyzed respectively.The results of the study show that,an arched longitudinal beam wharf has higher resistance against horizontal loading,but stress concentration is appeared obvious at the interface between the piles and pile caps.Local strengthening is needed in the designs.The results can provide a reference for the application of arched longitudinal beam wharf in engineering.

关 键 词：拱式纵梁结构 实船试验 船舶撞击力 动力响应 

分 类 号：U656.1[交通运输工程—港口、海岸及近海工程]