نوع مقاله : مقاله پژوهشی
عنوان مقاله English
A new method for detecting the stories of the simple bracing frames whose bracing systems are damaged is presented in this paper. Recall that; the braces play an important role in the lateral stiffness of these structures. Authors' approach only takes advantage of one load case and the static responses of the structure. It is worthwhile to mention that only translational degrees of freedom are measured. The selected load pattern should be able to produce these types of displacements. Note that; this paper performs analysis on the damaged structures to provide the displacements of the unhealthy structure required for damage detection process. By solving a non-linear optimization problem, the damage identification is carried out. The suggested technique converts this nonlinear problem into a binary linear programming, which could be solved by "pseudo dual simplex method." This new method is employed to assess the bracing systems of several plane frames with different braces. The damage identification process is carried out by authors' special-purpose computer program. Numerical results demonstrate the ability of this approach in detecting the damaged stories and estimating their lateral stiffness in a given simple bracing frame.
کلیدواژهها English
