人民长江Issue(14)：97-101,111,6.
倒虹吸地涵受温度作用影响的有限元分析
Finite element analysis on siphon culvert under temperature effect
蒋伯杰 1郑人逢 2宫必宁2
作者信息
- 1. 广东水利电力职业技术学院，广东 广州510635
- 2. 河海大学 水利水电学院，江苏 南京210098
- 折叠
摘要
Abstract
Taking a siphon structure in South-to-North Water Diversion Project as a research object and with the use of steady state and transient temperature modules in ADINA, we simulate and analyze the temperature field of inverted siphon struc-ture that is influenced by variation forms and loading rate of water temperature, at the same time, the relationship between struc-ture stress, deformation of the inverted siphon and the temperature changes is studied with the aid of temperature-structure mod-ule. The results show that the environment temperature can be simplified as linear for the inverted siphon of thinner structure;If considering the initial temperature field and the changing rate of water temperature, the maximum temperature difference of water temperature and ground temperature does not equal to the real maximum temperature difference of inside and outside surface;When the water temperature is higher than the ground temperature, there is a tendency of outward expansion for the inverted si-phon structure with the rise of water temperature, thus exerting an adverse effect on stress state of the overall inverted siphon;Conversely, when the water temperature is below the ground temperature, there is a tendency of inward contraction for the invert-ed siphon structure with the dropping of water temperature, and the inward contraction of left and right side walls prevent roof from inward contraction, thus gaining beneficial effect on the overall inverted siphon.关键词
倒虹吸地涵/温度场/温度作用/数值模拟Key words
siphon culvert/temperature field/temperature effect/numerical simulation分类
建筑与水利引用本文复制引用
蒋伯杰,郑人逢,宫必宁..倒虹吸地涵受温度作用影响的有限元分析[J].人民长江,2014,(14):97-101,111,6.
