撞击力作用下拱式纵梁码头排架受力特性分析  

Analysis on Transversal Mechanical Property of a Wharf with Arched Longitudinal Beams under Ship Impact Force

作　　者：翟秋[1] 鲁子爱[1] 朱峰[1] 

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

出　　处：《中国港湾建设》2013年第5期1-4,共4页China Harbour Engineering

摘　　要：简述了拱式纵梁的码头结构形式,分析了船舶撞击力作用下结构横向受力特性,通过ANSYS有限元分析平台建立了该结构的空间计算模型,以码头的一个结构段为例,对撞击力作用下码头排架的受力特性进行了分析研究。结果表明:由于结构的特殊性,撞击力作用于排架时,周边排架仅能承受10%左右的横向荷载;从结构角度来说,可适当增强纵向联接,以增大横向刚度,提升整个结构的水平承载能力。在纵梁简支条件下,撞击力作用时的结构计算可简化为平面问题。结果可为拱式纵梁结构在码头工程中的应用提供依据。Wharfs with arched longitudinal beams are introduced briefly, and analysis on transversal mechanical property un- der ship impact force is made. Space calculation model of the wharf was built by finite element software ANSYS. Taking one syntagme for example, mechanical property of bents under the impact force is studied. The conclusion shows that, when im- pact force acting on the bent, other bents around it can afford about only 10 % as a resuh of the special structural characteris- tics. The longitudinal copula should be improved to enhance stiffness of the whole structure, so that transversal bearing capaci- ty can be increased. When longitudinal beam is simply supported, structural calculation under impact force can be simplified as plane problem but not space problem. The conclusion may provide reference to the application of wharf with arched longitu- dinal beams in engineering.

关 键 词：撞击力 拱式纵梁 码头 排架 分配系数 

分 类 号：U656.1[交通运输工程—港口、海岸及近海工程]