BIM-Based Structural Optimization in Building Design Practice

Silvia Demattè, Massimo Speziani, Mauro Poian -EnginSoft

CHALLENGE Optimization implementation in the construction industry is still uncommon, and design practitioners usually follow general guidelines. An integrated, parametric and a multi-objective design is needed to improve productivity, quality and sustainability, as well as reduce cost and waste in the building process. BIM, or Building Information Modelling, incorporates methods and tools to integrate, simplify, rationalize and economize the entire design process. 

SOLUTION -  The test case is a structural optimization of a steel building using an optimization procedure in modeFRONTIER. A good compromise between a light structure at low cost is searched for, with the rapid generation and evaluation of a large number of design alternatives. In this case, the objectives are to minimize stress rate, max displacement, and total weight of the structure. AutoDesk Revit is used to find optimal structural configurations integrated with modeFRONTIER.

BENEFITS - The adoption of automated optimization in the building industry is a worthwhile goal, even if there are important issues to be addressed. Conclusions show substantial cost saving using the proposed methodology. Optimization using a modeFRONTIER workflow can first be offered to the building industry as a specialized service to become a more common practice in the following years.