A similar process was used to layout the HVAC diffusers, provided by the mechanical engineer through an IFC model. Leveraging GenerativeComponents Drives Efficiencies Leveraging the algorithm-driven features of OpenBuildings Designer enabled JPW to maximize data potential, developing scripts, and performing parametric modeling to automate previously manual pro- cesses. The solution streamlined workflows for the tower structure, façade, and ceilings, enabling two people to design and generate data for more than 1,400 tower columns, 8,000 façade panels, and 179,000 ceiling tiles. Checking and updating the tower columns previously took one person one week; with OpenBuildings Designer, it was completed in one hour. JPW modeled all the façade panels in less than one hour, compared to two weeks using traditional methods; and one person up- dated and integrated changes to the façade model in one day, compared to two people taking an entire week. Through iterative and automated scripting, the team quickly explored numerous options for shading and solar access to deliver an elegant, energy-efficient façade and comfort- able indoor working environments. Computational design methodologies have been integral to the detailed design development and documentation process of 6 & 8 Parramatta Square. Combining parametric and rule-based design optimized digital workflows while maintaining flexibility and rigor across the project. Bentley’s integrated design solution facilitated accurate building de- sign, including input and changes from contractors. Modeling the ob- jects familiarized JPW with the spatial implications that are important to architectural design. By integrating color-coding for visual differen- tiation and scripting failure mechanisms into the data flow, JPW auto- mated design verification, replacing manual methods of error-checking and eliminating the risk of human error. Over the entire project period, JPW achieved significant time and cost savings, as well as optimized design outcomes to meet all planning and sustainability goals. The building will be efficient in terms of energy, waste, materials, indoor environment, and water. The building will have usable and inviting civic spaces, showcasing the next generation of green buildings of this size and scale. Digital Twin Facilitates Design Coordination JPW used OpenBuildings Designer to establish a connected data envi- ronment to facilitate integrated design by implementing a digital twin. Creating a digital twin was fundamental to understanding the project’s design and development. JPW relied heavily on digital data provided from all services and structural engineering consultants. Therefore, it needed to ensure that these models and their documentation methodol- ogy were aligned with the architecture. Using the digital twin as an ar- chitectural control model to reference multidiscipline data, JPW tested design alternatives to determine the architectural impact that enabled the resolution of complex spatial parameters and clashes. Working with the integrated 3D model allowed the architects to identify and timely resolve inconsistencies, mitigating any negative financial and architec- tural impact, and avoiding rework. The digital twin helped JPW seamlessly and timely exchange data and models in formats accessible to all project participants. Bentley’s 3D digital application facilitated the generation of 2D drawings and
documentation directly from the model, streamlining both office workflows and coordination processes between architects, contrac- tors, and consultants. Using the digital twin from conceptual design through construction defined the collaborative methodology, helping arrive at a design solution that celebrates the architectural vision while meeting client requirements and the project’s ecologically sustainable goals. “Without the digital twin, the project would not be able to be delivered,” said Victor Au, architect with JPW. Shifting Perspective on Architectural Design Architects often spend a disproportionate amount of time trying to represent solutions rather than actually designing them. Computational design allowed JPW to focus on resolving problems and finding better design solutions to deliver 6 & 8 Parramatta Square. While scripting in OpenBuildings Designer was a time investment, within only eight months JPW realized the rewards, saving countless hours and signifi- cant costs. In the past, it would have been inconceivable to design from an Excel spreadsheet. However, the success of this project has shifted the perspective on design, encouraging JPW to adapt this solution on future projects, reaping the benefits and optimizing delivery. “Computational design empowers us to rethink our approach and, ul- timately, the way that we design our architecture, shifting the way our studio thinks about our practice in the future,” said Yap. Project Summary Organization: Johnson Pilton Walker Solution: Buildings and Campuses Location: Sydney, New South Wales, Australia Project Objectives: • To design an iconic sustainable tower structure as part of urban revi- talization and redevelopment of Western Sydney. • To leverage digital twins to streamline collaboration and coordinate • JPW implemented computational design to deliver an iconic, sus- tainable centerpiece tower for the Parramatta Square urban renewal initiative. • The GenerativeComponents feature in OpenBuildings Designer helped JPW leverage Excel data to develop scripts and perform para- metric modeling to accommodate the expedited timeline. • Working in a connected data environment facilitated collaborative design by generating a digital twin. ROI • Bentley’s computational design application reduced modeling time for the façade panels from two weeks to less than one hour. • The interoperability of OpenBuildings Designer with Excel auto- mated design processes to save significant time, resources, and costs. • Extracting data and documentation directly from the digital twin resulted in more accurate deliverables. design workflows. Project Playbook: OpenBuildings™ Designer Fast Facts
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october 2020
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