A Parametric Matching and Combinatorial Optimization Framework for the Productization Design of Rural Low-Rise Prefabricated Residences in Southern Jiangsu, China

This study proposes a productization framework to improve the design standardization of rural low-rise prefabricated residences (RLPR) in southern Jiangsu, China. The framework is built on three industrialized structural system prototypes: the prefabricated lightweight steel system (LSSCS), the composite cavity system (CCCS), and the rigid skeleton system (RSCS). At its core is a Python-based algorithmic workflow that automates and optimizes component system standardization. It automatically matches homestead dimensions to suitable layout types and applies combinatorial optimization to structural and enclosure components to minimize component variety. A case study validates the framework. From user-defined constraints, it generates a detailed parametric model and bill of materials, demonstrating a standardized, streamlined, and product-oriented RLPR design process.