Energetica India Magazine December 2020

36 energetica INDIA- December_2020 platform to integrate electrical, structural, and underground modeling works. Using OpenUtilities Substation, OpenBuildings Designer, STAAD, Bentley Raceway and Cable Management, and Promis.e streamlined workflows to optimize collaborative design and avoid 30 collisions, saving CNY 800,000. The electrical and civil engineering groups shared data and information through3Dmodels inBentley’sdiscipline- specific digital applications that were then imported into the comprehensive substation model available within the connected data environment. Integrating STAAD for structural design and analysis helped refine the architectural model to achieve less than 1% deviation in accuracy between the designed and actual steel material, optimizing the steel frame with just 8 tons of steel to save CNY 120,000 in material costs. The interoperability of Bentley’s applications (with one another and with third-party software) facilitated coordinated digital design to save 65 design days. Establishing collaborative 3D design workflows within the connected data environment, the team created an optimal engineering model, which identified and resolved clashes in advance, resulting in zero changes during underground construction. “Through comprehensive collision inspection of the underground facilities, design errors are found in advance and about 30 construction reworks are reduced,” said Wang. 3D Model Streamlines Construction Management The engineering design model, combinedwith the realitymodel, forms the substation digital twin where construction drawings and material quantities can automatically be extracted. Committed to full lifecycle digitalization for delivery of the substation, HEEC explored various methods to use the 3D design model to digitally guide construction. The team relied on mobile applications, including Bentley’s mobile versions of ProjectWise and Navigator, to enable on-site construction staff to access and check the substation model and associated drawings. Using iModels and 3D PDF models facilitated integration of various forms of data and dynamic simulation, allowing construction crews to visualize equipment installation and better understand the construction process. Working in a connected data environment with these mobile digital solutions provided on-site workers with convenient access to the 3D design model, improving workflow and POWER SECTOR Aerial image capturing helped to establish a digital context for the project, visually capturing the surrounding area. Image courtesy of POWERCHINA HEEC, Ltd.