摘要
在考虑桩侧土体对基桩产生阻力的情况下,将基桩视为一维粘弹性杆件,推导了粘弹性基桩的振动方程,并考虑基桩置于地下后的三种支承情况,分析了其振动的固有频率。然后研究了基桩在瞬态激振力作用下的动态响应特性,得出了桩顶速度响应的解析解,同时对影响桩身响应的一些因素进行了分析。
Considering the resistance force of soil around a viscoelastic pile,its dynamic equation is deduced.Its natural frequencies are analyzed under three kinds of boundary conditions.Dynamic response characteristics of the visco-elastic pile are studied under transient excitation.The analytic solution of the velocity response at its top is derived.Finally,the influence factors on the velocity response are analyzed.
出处
《振动与冲击》
EI
CSCD
北大核心
2007年第7期114-117,共4页
Journal of Vibration and Shock
基金
中南林业科技大学引进人才基金项目(0115)
关键词
粘弹性基桩
瞬态响应
动测
粘滞系数
viscoelastic pile,transient response,dynamic test,coefficient of viscosity
