Abstract: Based on the energy principle, the tapered elements for beam‐columns are derived and incorporated into a user‐friendly nonlinear frame analysis computer program. When compared to the methods using the conventional uniform ...

Abstract: Asymmetric thin‐walled open sections such as angles are used widely in trusses and transmission towers. Such members have relatively low torsional and bending stiffnesses and are connected eccentrically. The geometrical ...

Abstract: A numerical procedure for tracing the inelastic post‐buckling load‐deflection path of tubular struts is proposed. The analysis accounts simultaneously for both the geometrical and material nonlinearities with special ...

Abstract: To obtain an accurate insight into the behavior of most realistic steel frames, joint flexibility should be allowed for in the analysis. So far, most research work is concentrated on the linear and nonlinear static analysis ...

Abstract: The exact tangent and secant stiffness matrices of an initially curved beam-column element under predominant axial force and end moments are derived. The stability function of solving the differential equilibrium equation ...

Abstract: In practical stability design and analysis of steel members and structures, one must allow for member imperfection. Various national design codes impose different values of initial imperfection for member-strength ...

Abstract: An accurate pointwise equilibrating polynomial element with springs connected to its ends to model semirigid connections is derived. The formulated element and coded computer program for second-order nonlinear analysis of ...

Abstract: The ultimate load of a typical steel frame is dependent on the geometrically nonlinear and material yielding effects. The complexity for considering material yielding by the plastic hinge approach is the unknown location ...