Showing papers on "Portal frame published in 1978"
01 Jan 1978
TL;DR: The probabilistic evaluation of the deflections at incipient collapse is emphasized and the parametric method is shown to be capable of performing an accurate analysis of the safety of structures behaving in accordance with the basic hypotheses of elastic-plastic analysis.
Abstract: This paper proposes a generalization of the computational approach to structural reliability analysis through a. parametric Monte Carlo technique. The probabilistic evaluation of the deflections at incipient collapse is emphasized and the parametric method is shown to be capable of performing an accurate analysis of the safety of structures behaving in accordance with the basic hypotheses of elastic-plastic analysis. An application of the parametric method shows its computational efficiency in evaluating the structural reliability of a portal frame.
5 citations
01 Jan 1978
TL;DR: In this paper, a theoretical study of the hysteretic behavior of a portal frame under constant gravity and variable horizontal loading is made, where the model simulates the plastic interaction of the overall shearing and bending in tall rectangular frames and battened columns.
Abstract: A theoretical study is made of the hysteretic behavior of a portal frame under constant gravity and variable horizontal loading. Special account is taken of the variation of axial forces in the columns, the model simulating the plastic interaction of the overall shearing and bending in tall rectangular frames and battened columns. The assumed elastic-perfectly plastic behavior of columns makes a mathematical formulation feasible, and a detailed examination is given of the cyclic alternate displacement loading with the P-Δ-A effect taken into consideration. This example clarifies characteristic features of repeated loading such as shakedown, incremental collapse, and alternating plasticity under the combined action of bending moment and axial force existing in a frame member.