摘要
为较为精确的得到拱坝基岩在温度荷载作用下的应力应变分布规律,通过ANSYS开发了混凝土拱坝及基岩三维有限元分析模型,以此求得拱坝基岩在温度(升、降)荷载作用下位移、应力分布规律,发现温度荷载会对拱坝基岩的应力、位移分布产生较大影响,进一步分析两种温度荷载作用下,基岩应力位移分布差异及原因。再预测拱坝基岩在温度荷载作用下可能出现的破坏形式及位置,并提出相应的工程治理措施。
In order to obtain the accurate stress and strain distribution law of arch dam bedrock under temperature load,through ANSYS,an analytical procedure of concrete arch dam and bedrock three-dimensional finite element is developed and adopted to get the displacement and the stress distribution of the bedrock with loads of temperature-up or temperature-down.It is found that temperature load has great influence on stress and displacement distribution of arch dam bedrock.The cause and distribution difference of bedrock displacement and stress are analyzed with temperature-up and temperature-down.Finally,the positions of bedrock and the possible destructional forms are forecast,and some corresponding control measures are put forward as well.
作者
陈华杰
CHEN Hua-jie(Zhejiang Design Institute of Water Conservancy and Hydroelectric Power,Hangzhou 310002,China)
出处
《浙江水利水电学院学报》
2019年第6期13-17,48,共6页
Journal of Zhejiang University of Water Resources and Electric Power
关键词
拱坝
基岩
温度荷载
应力
位移
arch dam
bedrock
temperature load
stress
displacement
