Abstract: A simulated annealing strategy is developed for use in the discrete optimization of three‐dimensional steel frames. This strategy randomly perturbs the current design to create a candidate design. A probabilistic acceptance ...

Abstract: The optimization of three-dimensional (3D) reinforced concrete frames is discussed. The validity of the assumption that optimum concrete-section dimensions are insensitive to the number, diameter, and longitudinal distribution ...

Abstract: A simplified skyscraper model (SSM) based on dominant degrees of freedom and superelements was developed and implemented in a spreadsheet for use in preliminary design of skyscrapers with outrigger and belt trusses. The ...

Abstract: A corotational element is developed directly from the governing second-order differential equations of beam theory. The corotational element includes not only the effect of axial force on the bending moment (

Abstract: A genetic algorithm is presented that can simultaneously optimize size, shape, and topology of skeletal structures, including both trusses and frames. The algorithm is unique because it finds multiple optimum and near-optimum ...

Abstract: The paper discusses the effect of manufacturing tolerances for the design variables on the solution to an optimization problem. Two formulations of the tolerance problem in an optimization context ...

Abstract: A procedure for the design of buckling-restrained braced frames is presented. The procedure uses nonlinear time history analysis and optimization. Results from this procedure are compared to those from the commonly used ...

Abstract: A genetic algorithm was used to search for optimal future land-use and transportation plans for a high-growth city. Millions of plans were considered. Constraints were imposed to ensure affordable housing for future ...