Abstract
A new dirct stiffness method based on Hellinger-Reissner's Principle for analyzing framed shear walls is proposed. In this method, a framed shear wall is subdivided into the elemets of the shear wall, bams and columns, and then the Airy's Stress function is introduced to express the stress fields in the elements. After deriving the functional of the elemets from the Hellinger-Reissner's Principle, the stress parameters are eliminated by using the stationary conditions of the functional, so the number of unknown displacement parameter becomes small compared to the ordinary direct stiffness method.
