Abstract

The development in structural optimization of diagrid buildings is emerged recently due to the urgent need to fulfil environmental sustainability. Despite this, little work has so far been undertaken to optimize diagrid buildings with various heights under nonlinear seismic analysis. This paper studies the optimization of diagrid buildings using parameter space investigation (PSI) to find out the optimum size of diagonal adopting the minimization of diagonals weight. The PSI was utilized among Python script connected with ABAQUS software and visual basic program to generate the feasible and Pareto sets for the studied buildings. Optimal Pareto solutions which is extracted from the proposed method are compared with the referential stiffness-based method to evaluate the efficiency and applicability of the methods. The results concluded that the optimization of diagrid buildings using PSI is a powerful tool for structural engineers to determine the design parameters and can achieve sustainable and resilient structures. In additions, the PSI method could decrease the tension damage in the slabs drastically.

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