摘要
为了研究不同连接属性对结构动力特性的影响,利用ABAQUS软件建立精细化有限元模型,对上下部结构采用锚固连接和摩擦接触两种连接方式形成的低桩承台重力式码头整体结构进行动力时程分析,研究两种连接属性所对应结构的地震响应规律。结果表明,在地震结束时,锚固连接结构的残余位移比摩擦接触结构小;摩擦接触结构水平峰值加速度之差大于锚固连接结构;锚固连接结构的最大与最小拉(压)应力均小于摩擦接触结构;摩擦接触结构最大动土压力值、最大与最小动土压力之比均大于锚固连接结构。
In order to research the influence of different connection properties on the dynamic characteristics of the structure,we use software of ABAQUS to establish a refined finite element model,carry out the process analysis of the overall structure of the gravity piled wharf with low pile cushion caps formed by two methods of anchoring and frictional connection,and study the seismic response law of the structure corresponding to the two connection properties.The results show that at the end of the earthquake,the residual displacement of the anchored connection structure is smaller than that of the friction contact structure.The difference between the horizontal peak acceleration of the friction contact structure is larger than that of the anchor connection structure.The maximum and minimum tensile(compressive)stresses of the anchor connection structure are smaller than those of the friction contact structure.The maximum dynamic earth pressure value and the ratio of the maximum and minimum dynamic earth pressure of the friction contact structure are larger than those of the anchor connection structure.
作者
周丹
王多银
赵大淮
段伦良
ZHOU Dan;WANG Duo-yin;ZHAO Da-huai;DUAN Lun-liang(College of River&Ocean Engineering,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《水运工程》
北大核心
2020年第10期57-62,69,共7页
Port & Waterway Engineering
关键词
连接属性
动力响应
低桩承台
重力式码头
connection property
dynamic response
low pile cushion cap
gravity wharf
