摘要
文章对粘土中的吸力锚基础承受水平与扭矩组合荷载、垂直与扭矩组合荷载的性能展开了研究。首先通过数值模拟试验,验证了有限元模型的合理性。基于有限元建立了长径比为1的吸力锚基础模型,研究了水平荷载、竖直荷载和扭矩荷载组合作用下的吸力锚基础承载特性。结果表明:在扭矩荷载的作用下,吸力锚基础的水平和竖直承载性能均显著降低,随着水平荷载作用点的下降,吸力锚抵抗扭矩荷载的能力呈现出先增大后减小的趋势;在水平-竖直-扭矩荷载三者组合作用的情况下,随着扭矩荷载的增大,吸力锚极限承载力的下降趋势显著增大,随着荷载方向与水平面夹角增大,吸力锚抵抗扭矩荷载的能力呈现增大趋势。
This article investigates the ability of suction anchor foundations in clay to withstand horizontal and bending moment combined loads,as well as vertical and bending moment combined loads.First,the rationality of the finite element model is verified through numerical simulation tests.Based on the finite element method,a suction anchor foundation model with an aspect ratio of 1 is established.The bearing capacity characteristics of the suction anchor foundation under the combined action of horizontal load,vertical load and torque load are studied.The results show that under the action of torque load,the horizontal and vertical bearing capacity of the suction anchor foundation is significantly reduced.With the decrease of the horizontal load point,the ability of the suction anchor to resist the torque load shows a trend of first increasing and then decreasing.In the case of the combination of horizontal-vertical-torque loads,the decline trend of the ultimate bearing capacity of suction anchors increases significantly with the increase of torque loads.As the angle between the load direction and the horizontal plane increases,the bearing capacity of the suction anchor to resist torque loads tends to increase.
作者
张浦阳
马思腾
乐丛欢
丁红岩
Zhang Puyang;Ma Siteng;Le Conghuan;Ding Hongyan(State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation,Tianjin University,Tianjin 300350,China;School of Civil Engineering,Tianjin University,Tianjin 300350,China)
出处
《可再生能源》
CAS
CSCD
北大核心
2024年第8期1047-1053,共7页
Renewable Energy Resources
基金
国家自然科学基金项目(52171274)。
关键词
吸力锚基础
扭矩荷载
承载特性
有限元
suction anchor foundation
torque loading
bearing capacity characteristic
finite element
