Multi-Objective Optimization Design Method for Precast Concrete Sandwich Wall Panels

The precast concrete sandwich wall panel， an envelope structure integrated with decorative， insulation， and structural functions， is widely used in prefabricated buildings. Its design requires comprehensive coordination of multiple objectives， including thermal and mechanical performance， economic feasibility， and ease of processing. Based on the characteristics of typical climate zones， this paper systematically examines the structural parameters of PC sandwich wall panels. By carrying out computational simulations and practical investigations， this paper established the quantitative relationships between panel parameters and their performance. To address the conflicts of multi-objective performance and the lack of decision-making mechanisms in existing design algorithms， this paper proposes an innovative optimization design method based on dynamic weight assignment， which collaboratively achieves optimization of multiple performance and provides scientific guidance for multi-objective optimization design of envelope wall panel.