克孜河渡槽运行期温度应力耦合分析

Coupling analysis of aqueduct temperature stress in the operation period of the Kezi river

渡槽在运行期由于外界环境变化会引起渡槽内部的温度应力变化.新疆克孜河渡槽位于新疆南部地区,日照时间长且日照充足,渡槽水多为融雪水温度较低这样造成了渡槽内外温度梯度较大,运行期环境变化较大,温度应力问题是其较为重要的问题之一.本文通过三维有限元软件建立克孜河渡槽三维模型,模拟渡槽运行期温度、应力分布规律,最终达到在渡槽运行期间有效防裂的目的,为今后渡槽设计提供设计参考.

The cement hydration heat in the operation period have disappeared,the structure in a more stable state because of temperature,the outside temperature changes will cause the aqueduct internal temperature stress changes,at the same time in the sunshine,environmental temperature changes and sudden cooling structure caused by temperature stress and temperature difference change. The establishment of three-dimensional model of Kezi river aqueduct by 3D finite element simulation software,aqueduct period,temperature and period of running stress distribution,finally effectively crack in the aqueduct during operation,in order to provide the basis for future design of aqueduct design.