Computer‐Automated Design of Semirigid Steel Frameworks
- 1 June 1993
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Structural Engineering
- Vol. 119 (6), 1740-1760
- https://doi.org/10.1061/(asce)0733-9445(1993)119:6(1740)
Abstract
This paper presents an efficient computer‐automated method for the optimum design of steel frameworks accounting for the behavior of semirigid connections. The method explicitly accounts for both connections and members by taking connection stiffnesses and member sizes as continuous‐valued and discretevalued variables to the design process, respectively. A continuous‐discrete optimization algorithm is applied to minimize the ‘cost’ of the connections and members for the structure subject to constraints on stresses and displacements under specified design loads. Two steel framework examples are presented to illustrate the features of the design method. It is shown that the design optimization determines connection stiffnesses that are entirely consistent with those for the actual (bolted/ welded) connections employed in conventional steel frameworks, but that member sizes are somewhat different from those found when the connections are (artificially) assumed to be fully rigid. That is, the results suggest ...Keywords
This publication has 6 references indexed in Scilit:
- Effect of connections on framesJournal of Constructional Steel Research, 1988
- Analysis and behaviour of flexibly-jointed framesEngineering Structures, 1986
- Optimal Synthesis of Steel Frameworks Using Standard Sections* †Journal of Structural Mechanics, 1984
- An improved analysis/synthesis capability based on dual methods - ACCESS 3for minimum weight design of structuresPublished by American Institute of Aeronautics and Astronautics (AIAA) ,1979
- Analysis of Flexibly Connected Steel FramesCanadian Journal of Civil Engineering, 1975
- Matrix Analysis of Semi-Rigidly Connected FramesJournal of the Structural Division, 1963