Groundbreaking New Tools: Computational Site Design Development Using GH-BIM Workflow

Unprecedented urban population growth and increased urban density in Asian cities demands a speedy, customisable and sustainable approach to design. 'Mass-housing' has been associated with monotonous, repetitive architecture due to limitations of resources such as skills, time and technology in the past, but, where computational design can now fill this gap, customisable site-specific solutions can be generated in a very short span of time.

At WEIJENBERG, we are striving to maximise the impact of ever-evolving and improving computational tools at our disposal in order to achieve excellence in mass customised design. The adoption of new technologies and techniques ensure the firm is continually stretching its production capabilities to achieve breakthroughs in architecture.

Using Grasshopper in Rhino with BIM (ArchiCAD) live connection, we have prototyped a parametric-BIM interoperable workflow and design code, which allows us to quickly produce optimised and custom solutions from concept stage down to construction drawings and details.

One of the first firms in Singapore to pioneer this working method, we have applied this workflow to create a conceptual structure in People’s Park Complex in the heart of Singapore.

The solutions are generated based on a combination of:

(1) Fixed inputs e.g. Site, FAR, setbacks, maximum building height, ratio of building and unit typologies

(2) Variables for manual adjustment e.g. Building position, orientation, access points, paths, open spaces

(3) Optimisation tools which use genomic algorithms to achieve optimised views, structural solutions, sun shading, unit layout etc, to improve building sustainability and value generation