混凝土重力坝加高的温度场及温度应力研究

本文利用Ansys软件对混凝土重力坝加高施工期及运行期的温度场及温度应力进行了研究。研究结果表明,重力坝加高过程中混凝土温度场的变幅很大,受外界温度的影响也比较大,产生了较大的拉应力.

By using of large F.E.M software ANSYS,the author studies the problems of temperature field and thermal stress of heightening concrete gravity dams in the construction and operating period,and the result shows that the dam thermal stress is affected greatly by the external temperature,besides,there is a large range of temperature field amplitude of concrete temperature field,and great tension stress usually goes with it.