Parametric Modeling of Modular Structures for Designing  Pemb Systems

Abstract

Building design criteria have evolved to meet the demands of 21st-century cities. Rapid design solutions, has become increasingly pronounced, with an emphasis on modular, expandable, and temporary structures.To improve design precision and efficiency, methodologies such as Parametric Design have been developed.This study introduces an automated method for designing expandable structures, focusing on Pre-Engineered Metal Buildings (PEMBs). Using Grasshopper, a computational design tool, the study develops "PEMBguin," which automates the modeling of PEMBs. The framework and elements of a typical PEMB module are created parametrically and replicated throughout the structure, enabling dynamic resizing based on user inputs.PEMBguin allows automated generation and modification of PEMBs by adjusting parameters like length, width, eave height, and roof slope. Ten case studies validate its effectiveness. The methodology also holds potential for automating other expandable structures, with future research exploring integration with BIM environments.

Keywords: Keywords: Parametric design, prefabricated modular structures, Pre-Engineered Metal Buildings (PEMB), Grasshopper for Rhino, Computer-Aided Design.