@article { author = {}, title = {Free vibrations of flexibly connected elastically supported stiffened coupled shear walls with stepwise changes in width}, journal = {Iranian Journal of Science and Technology Transactions of Civil Engineering}, volume = {28}, number = {5}, pages = {605-614}, year = {2013}, publisher = {Shiraz University}, issn = {2228-6160}, eissn = {}, doi = {10.22099/ijstc.2013.1112}, abstract = {In this study, a free vibration analysis of flexibly connected, elastically supported, stiffened coupled shear walls is carried out by a simplifying method widely used in the past for the static analysis of similar structures [1]. This method, called the continuous connection technique (CCT), comprises an efficient tool for the predesign computations related to the treatment of high-rise buildings. While the discrete structure is formulated as a continuous medium, the continuously distributed mass of the structure is discretized to a system of lumped masses for finding the corresponding flexibility matrix. After obtaining the standard frequency equation of the discrete system, the circular frequencies are determined in a straightforward manner and used to find the modes of vibration. Some comparisons are made between the results of the present method and those of a previous one, resulting in a perfect match of the two}, keywords = {Stiffened coupled shear walls,continuous connection technique,free vibration}, url = {https://ijstc.shirazu.ac.ir/article_1112.html}, eprint = {} }