吸力式桶形基础在砂土中循环荷载下的承载力特性  

Bearing capacity characteristics of suction bucket foundation under cyclic loading in sand

作　　者：谢印标 罗浩天 厉雅萌 武科[2] 杨涛 李国栋 杨洪娜 XIE Yinbiao;LUO Haotian;LI Yameng;WU Ke;YANG Tao;LI Guodong;YANG Hongna(Linyi Architectural Design and Research Institute Co.,Ltd.,Linyi 276000,Shandong,China;School of Civil Engineering,Shandong University,Jinan 250061,Shandong,China;STECOL Corporation,Tianjin 300384,China)

机构地区：[1]临沂市建筑设计研究院有限责任公司,山东临沂276000 [2]山东大学土建与水利学院,山东济南250061 [3]中国电建市政建设集团有限公司,天津300384

出　　处：《山东大学学报（工学版）》2022年第4期151-156,共6页Journal of Shandong University（Engineering Science）

摘　　要：针对海洋环境中波浪、风等循环荷载对吸力式桶形基础的承载力影响问题,依托试验与ABAQUS数值模拟互相比对方法研究埋深对桶形基础循环荷载承载特性的影响与循环荷载振幅对桶形基础承载特性的影响。研究结果表明,在循环荷载作用下,随着埋深的增加,水平承载性能提升,而竖直承载性能下降;桶形基础承受的循环荷载越大,越早发生破坏,承载能力越低。桶形基础的循环割线刚度随着埋深的增加而增加;随着循环荷载振幅的增加,循环割线刚度减小。In order to solve the problem of the impact of cyclic loads such as waves and wind on the bearing capacity of the suction bucket foundation in the marine environment,the method of comparison between the test and the ABAQUS numerical simulation was used.The influence of the buried depth on the cyclic load bearing characteristics of the bucket foundation and the cyclic load amplitude on the bearing characteristics of bucket foundation was studied.The research results showed that under the action of cyclic loading,as the buried depth increased,the horizontal load-bearing performance increased,while the vertical load-bearing performance decreased.The greater the cyclic load that the bucket foundation bore,the earlier failure would occur and the lower the bearing capacity would be.The cyclic secant stiffness of the bucket foundation increased as the buried depth increased,and the cyclic load amplitude increased,the cyclic secant stiffness decreased.

关 键 词：桶形基础 循环荷载 承载力特性 埋深 周期振幅 

分 类 号：TU470.3[建筑科学—结构工程]