摘要
采用理论推导和三维有限元计算相结合的方法,研究圆形扩展基础在极限荷载条件下基础与地基间相互作用的变化规律以及地基变形模量、泊松比、内摩擦角等主要因素对基底反力的影响。通过研究提出刚、柔性圆形扩展基础基底反力计算公式和基础环下翼缘结构冲切承载力的简化计算模型,为陆上风力机基础结构优化设计提供支持。
Based on a combined method of three-dimensional finite between the circular spread foundation and the ground was studied in modulus, Poisson ratio, internal friction angle and cohesion on the method and theoretical equation, the interaction detail and the influence of rock-soil deformation subgrade reaction was analyzed. Computational methods of subgrade reaction corresponding to the rigid and flexible foundation were put forward, meanwhile, a simplified computational model for punching capacity of the reinforced concrete under the foundation ring was proposed. The research results provide technical reference for the design of onshore wind turbine foundations.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第5期1130-1135,共6页
Acta Energiae Solaris Sinica
基金
国家高技术研究发展(863)计划(2012AA051702)
天津市应用基础及前沿技术研究计划(青年基金项目)(12JCQNJC04000)
国家自然科学基金创新研究群体科学基金(51021004)
关键词
风力机基础
圆形扩展基础
基底反力
冲切
wind turbine foundation
circular spread foundation
subgrade reaction
punching shear
