Direct Displacement-Based Design (DDBD) is a performence-based seismic design method that has been proposed and well developed over the past two decades to design RC frame structures, shear walls and bridges. In this method, the behavior of a multi-degree-of-freedom (MDOF) sysytem is approximaeted by an equivalent single-degree-of-freedom (SDOF) substitute structure. Although this method has be...

Direct displacement based design (DDBD) is a conceptual framework that directly design a structure to achieve an expected performance level under specified seismic intensity. In this study, two important issues relevant to torsional response of mass eccentric 8-story RC building designed with DDBD approach are investigated. These issues are including the effects of unbalanced mass distribution ...

Direct displacement-based design is a nonlinear static procedure and has to check the suitability of method against different types ground motions namely far field, near field forward directivity fling step. The applied for buildings supported on fixed base hysteretic isolation bearings. Seismic isolators are provided between foundation superstructure minimize influence motion superstructure. f...

1. Abstract This paper presents a new fully stressed design method for the solution of the general weight optimization problem applicable to determinate trusses subject to displacement constraints. Fully stressed design (FSD) has been a popular method to perform structural optimization when only stress constraints are considered. It is attractive because it reaches the optimal design following ...