摘要
基于目前内河大水位差框架码头结构的设计和计算方法,通过建立三维有限元仿真模型,对框架码头结构在船舶撞击作用下的瞬态响应进行了分析,并与传统静力分析相比较。结果表明:结构位移横向比纵向反应敏感,向江侧比向岸侧敏感,并且随着时间推移,峰值逐渐减小。结构整体、局部动力特性和撞击加载的共同作用,是造成各构件内力差异的主要因素。为得到比较真实精确的结果,设计人员应当考虑码头结构在船舶撞击下的瞬态动力影响,其研究成果能够为类似工程设计提供参考作用。
Based on the design and calculation of the large inland river framework wharf,we established three-dimensional finite element simulation model and conducted the transient response analysis of the wharf structure hit by ships,and compared the results with the conventional static analysis.The results indicate that lateral displacement response is more sensitive than longitudinal displacement of the structure,displacement toward the river-side is more sensitive than that toward the shore side,and the peak value gradually decreases with time.The co-action between whole and local dynamic characteristics of the framework wharf and impact loading leads to internal force differences of every member.To obtain accurate results,transient dynamic impact response of wharf structure should be considered in design.The results can provide reference for similar projects.
出处
《人民长江》
北大核心
2010年第17期40-42,78,共4页
Yangtze River
基金
重庆市自然科学基金重点资助项目(CTTC
2007BA6020)
西部交通建设科技资助项目(200332822258)
