Research on Thermal Stress of CFRD Concrete Slabs under Condition of Cold Wave Attack

摘要：

Based on the most disadvantageous condition of cold wave attack that probably occurs in construction period of Gongboxia concrete slabs of rockfill dam,the emulation analysis in finite element method is made for the complete process of temperature field and temperature stress of concrete slabs during the cold wave attack. The results show that the temperature of slab surface and the temperature of center slab fall continually with cold wave attacking,especially the drop range of temperature and the maximum principal stress on the slab surface are larger than that in the slab center.Moreover,the maximum principal stresses on slab surface and in center slab occur both at the middle section of slabs,about at half of the dam height. The range of temperature drop and increment range of the maximum principal stress can be apparently cut down by taking safeguard measures during the period of cold wave affack.

关键词： hydraulic structure thermal stress finite element method cold wave attack,rock-fill dam concrete slab

作者: Wang Ruijun Chen Yaolong Fu Guodong Geng Jiji

作者单位: Xian University of Technology,No,5,Xian,China

会议类型: 国际会议

会议名称: The 1st International Symposium on Rockfill Dams(第一届堆石坝国际研讨会)

会议地点: 成都

会议语种:英文

页码: 301-307

在线出版日期: 2009-10-18（万方平台首次上网日期，不代表论文的发表时间）