Abstract: A beam-column model for simulating the inelastic behavior of three-dimensional (3D) steel frames is presented. Yielding of the steel section is modeled by two nested stress-resultant surfaces and takes into consideration ...

Abstract: Since the September 11th terrorist attacks, the research and engineering communities have given significant attention to building performance under combined effects of impact, explosion, and fire. This paper presents a ...

Abstract: This paper provides insight to the background of the development and requirements for panel-zone design in the 1986 AISC LRFD specifications. In particular, two criteria for the design of beam-column panel zones are ...

Abstract: Ultimate strength tests on welded thin‐walled steel box columns simply supported at the ends and subjected to biaxial loading are reported. A series of 28 large‐scale box columns of square and rectangular cross section ...

Abstract: This paper discusses the issues involved in using simplified second‐order inelastic analysis for design of steel‐frame structures. In particular the elastic‐plastic hinge method is examined and the assumptions inherent ...

Abstract: A numerical method to investigate the ultimate strength behavior of thin‐walled steel box columns subjected to axial load and biaxial end moments is presented in this paper. The columns are of uniform cross section along ...

Abstract: The stability of symmetric pin‐ended square box column tapering from the mid‐length to the ends and subjected to the combined action of axial thrust and biaxial moments is investigated. Torsional‐flexural behavior is not ...

Abstract: This paper discusses several issues pertinent to the use of advanced analysis for design of two‐dimensional steel‐frame structures. In particular, the accuracy of the elastic‐plastic‐hinge method is examined, and its range ...

Abstract: This paper presents an advanced plastic hinge analysis method that can be used to assess the performance of steel structures exposed to fire. The main feature of the analysis is to use as few elements as possible to model ...