Abstract: A new concept of instantaneous secant stiffness is proposed and used for nonlinear elastic‐plastic analysis of steel space structures, which replaces the Newton‐Raphson technique (the instantaneous tangent stiffness method). ...

Abstract: A second‐order nonlinear analysis of steel space structures has been presented. Of the two types of nonlinearities, material and geometric, only geometric nonlinearity has been considered. The material of the structure ...

Abstract: Prestressed masonry as a structural material is still underexploited for the simple reason that basic behavior and complete response up to failure is not well understood. Therefore, to evolve a rational basis for design ...

Abstract: A strain rate dependent material model for concrete has been proposed for analysis of three-dimensional reinforced concrete structures under transient dynamic loading. The model takes into account the pressure sensitivity ...