Integrating agent-based human behavior simulation with building information modeling for building design

Human behavior needs to be considered when designing buildings and infrastructures. In recent decades, building information modeling (BIM) has been increasingly adopted as a computer aided design methodology for architectural design, engineering design simulation and evaluation, and 4D constructability analysis. BIM models can be used to conduct engineering analyses while human behavior simulation using BIM models is still lacking. The research objective of this study is to connect BIM software with the human behavior simulation engine utilizing object-oriented computer programming language. A behavioral modeling engine is also developed in this study upon the agent-based modeling (ABM) approach. Finally, this paper presents a demonstrative example of four scenarios and the result proves that implementation of the occupant simulation help improve building design

Parametric BIM-Based Lifecycle Performance Prediction and Optimisation for Residential Buildings Using Alternative Materials and Designs

Residential building construction is resource-intensive and significantly impacts the environment by embodied and operational carbon emissions. This study has adopted a parametric building information modelling (BIM)-based approach for a residential building to analyse its lifecycle carbon performance and to evaluate the optimisation potential through alternative material use and design. The study looks at a residential development project, applying an automatic calculation and analysis tool of upfront embodied carbon and BIM-based lifecycle energy simulation to predict carbon emissions from operating the built spaces. A parametric BIM model has been established to aid energy simulation and operational carbon assessment across a 50-year building lifetime, considering 1.5 °C Net-Zero World and 3 °C Hot House World climate scenarios. Various improvement opportunities for future residential development projects, from material selection to operational efficiencies, are explored. This includes quantitative analysis on architectural-structure design, low-carbon construction materials (e.g., cement substitutes, steel scraps, and green hydrogen steel), and novel design for construction approaches (such as modular integrated construction), with discussion around their impacts on optimising the building lifecycle carbon performance. This study provides a deeper understanding and insights into the lifecycle performance of residential buildings to facilitate further exploration of achieving a more sustainable and low-carbon built environment