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综合考虑环境因素（如库水温度、气温等）以及混凝土热力学参数的随机性，给出了可以反映材料参数随机性的基于随机场局部平均的温度场随机变分原理和随机有限元列式。为使随机有限元法可以进一步考虑随机过程参数的影响，文中视复频响应函数为随机函数；给出了复频响应函数－随机有限元法。文末算例表明了该方法的正确性和实用性。
Considering the randomness of environmental factors (such as reservoir water temperature and temperature) and the thermodynamic parameters of concrete, a stochastic variational principle and stochastic finite element equations of temperature field based on local average of stochastic field are given. In order to make stochastic finite element method to further consider the influence of stochastic process parameters, the apparent complex frequency response function is a random function; the complex frequency response function - stochastic finite element method is given. The last part shows the correctness and practicability of this method.