An Exact Calculation of Stress-loss in a Pre stressed Concrete Beam according to the nonlinear Elastic-creeping Theory

Till now, for the problems fo find the stress—loss of a prestressed concrete beam according to the nonlinear elastic-creeping theory, there exist not any exact solving methods. In this paper, the author suggestes a method, with which we may find out the exact value of stress-loss, and a practical example is worked. By comparing this method and the approximate method stated by the author, we may observe the reliable degree of the approximate method.