人民黄河Issue(4)：126-129,4.DOI:10.3969/j.issn.1000-1379.2015.04.032
大坝加厚温度场和温度应力仿真分析
Simulation of Temperature Field and Thermal Stress of a Thickened Dam
马涛 1蔡波 1曾旭1
作者信息
- 1. 中国电建集团中南勘测设计研究院有限公司，湖南长沙410014
- 折叠
摘要
Abstract
In order to understand the causes leading to appearing cracks in rock filled concrete for a new thickened dam,and to study the ef-fectiveness and reasonability of comprehensive temperature measures to prevent cracks,this paper used a 3D large-scale finite element soft-ware to calculate and simulate the temperature field and the temperature stress field for the new thickened arch dam during the construction and operation time,which took into the impact of the concrete thermodynamic parameters changing with age,the dam layered with construc-tion process,and outside temperature. The results give temperature filed and temperature stress distribution changing with time rock filled concrete for the thickened dam. From the result,it is necessary to increase the transverse joint to reduce the large arch tensile stress,to take the insulation measure to reduce the temperature difference for winter level and temperature difference for the exposed concrete surface in the winter,and to take effective measures to avoid the concrete contact surface the large area off of the new and old dams at the same time.关键词
新加厚坝体/裂缝/温度场/温度应力/仿真计算/横缝Key words
new dam/crack/temperature field/thermal stress/simulation and calculation/transverse joint分类
建筑与水利引用本文复制引用
马涛,蔡波,曾旭..大坝加厚温度场和温度应力仿真分析[J].人民黄河,2015,(4):126-129,4.
