Topological optimization of composite truss beams considering CO2 emissions
Palavras-chave:
optimization, composite truss, sustainable design, CO2 emissions, truss topology optimizationResumo
In order to provide more sustainable solutions to the construction of composite truss beams, the present
work proposes a formulation to optimize dimensional, geometric and topologic parameters aiming to minimize
CO2 emissions. Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) are used to solve the
optimization problem considering the choice of steel profiles, characteristic strength of concrete, formwork,
number of panels and truss total height. The methodology is applied to a problem where three different models of
truss are considered - Pratt, Howe and Warren - and an analysis of the best solution’s emissions composition is
made. In conclusion, results shows that the better result to the optimization problem was obtained in the Warren
model and both optimization algorithm presents consistent solutions.
