Entrant details
Role or Job Title on the Project
designer
Employer
Architectural Design and Research Institute of Guangdong Province Co., Ltd.
Guangzhou, Guangdong, China
Employer Role
Architecture or Engineering Company
Are you or your employer a member of buildingSMART?
No
Submission details
Submitting Party Company Name
Architectural Design and Research Institute of Guangdong Province Co., Ltd.
Submitting Party Company Location
97 Liuhua Road, Liwan District, Guangzhou, Guangdong, China
Submitting Party Role on Project
DESIGN UNIT
Submitting Party Company Website
Full Project Name
Design of Zhanjiang International Airport Relocation Project
Project Location (Country)
China
Project Objectives
Efficiently design and build a high performance terminal under an open data workflow.
openBIM Achievements
SAVING COST - OpenBIM standard helped realizing multi-software collaboration in this project, reducing repeated modelling works and shortening design period.
BETTER INTERACTION - The open data format enabled the integration of multi-disciplinary models in this project in the construction design stage, which helped to realize multi-disciplinary clash detection and construction simulation.
CLIENT’S SATISFACTION - Openbim data format facilitates project delivery. In this project, all models were delivered in IFC file format, which enables the client to view the model and check the model information on the BIM platform or Navisworks, instead of viewing the models in multiple software.
openBIM used
IFC 2x3, COBie
openBIM or open standards used other than those listed above
Software used
Revit, Navisworks, Ecotect Analysis, AUTOCAD, Midas, Rhino, Sketchup, Tekla Structure, YJK, Lumion, Pathfinder, Midas
Highlights
Delivered on time and under budget;
Over 1,400,000 IFC structural objects modelled;
All model files were delivered in IFC file format;
The information handover of design works was through COBie.
Project and Stakeholder Logos (compiled into one .ppt/pptx file for upload)
Project Address
Wuchuan, Zhanjiang, Guangdong, China
Project Type
Industrial
Size of Project
The floor area of the project is 58000 square meters;
The target annual passenger throughput is 5.1 million (person-time);
The total investment of the project is RMB 4.91 billion.
Detailed description of the project
Implementing Zhanjiang Airport Relocation Project is necessary to meet the increasing demand of air transportation in Zhanjiang, promote the local economic and social development, improve the comprehensive transport system, and implement the relevant national plans and strategies. The relocated Zhanjiang airport is a major airport linking the international airports in Southeast Asia. It opens air routes to major domestic cities and some overseas cities, and various types of aircraft types such as B737, A320 and B747 will be put into service. It is predicted that the passenger throughput is 5.1 million (person-time), the cargo throughput is 30,600 tons and the aircraft movements are 47,400 ATMs. The main construction contents of this phase of the Project include:
(1) Airport works. Including a 3200m × 45m runway and a taxiway system, with an airfield classification of 4E; an airport apron with 30 stands, a terminal building with an area of 58,000m2, and supporting facilities such as freight transportation, aircraft maintenance, ground service, fire rescue, production and living auxiliary rooms, power supply, water supply, gas supply, sewage discharge, etc.
(2) Air traffic control works. A control tower with a height of 60m and an air traffic control building with an area of 4,500m2, service support rooms with a total area of 3,500m2 and an antenna site will be built with various special equipment for air traffic control, communication, navigation, meteorology and air traffic control provided.
(3) On-site oil supply works. Including airport oil depots, apron refueling pipelines and aviation gas stations.
(4) The total land scale of the Project is tentatively set at 3,938,033m2. Among them, the site land area is 3,887,368m2 (including 3,771,366m2 for airport works, 53,333m2 for airport oil depots of oil supply works, 16,000 square meters for aviation gas stations and 46,666m2 for air traffic control works); the land area for stations outside the airport and access roads is 50,666m2.
It is also worth mentioning that the construction period of the Project is 3 years.
According to the requirements listed in the contract, the entire life cycle of this project should be based on BIM techniques. Specifically, the contract claims that the design unit shall complete the BIM modeling works of all disciplines in the design phases, provide complete project information generated from the ongoing design stages, and hand over the model files in IFC file format and spreadsheets containing project information at the end of design works.
Considering the relevant requirements in the contract and combined with the existing technological means, the design team prepared a BIM based work flow implementation scheme before the design works started. In this work flow, the adoption of open data formats was vita. Therefore, designers of each discipline defined their own work flow on the premise of convenient software interaction.
With the development of design works, the project data was more and more abundant, and the number of project models was increasing. Finally, models of all disciplines were integrated in Navisworks and further works like clash detection were carried out. In the design outcome handover stage, the model files were handed over to the client and the construction unit in the form of IFC file, and the project information was delivered to the client and the construction unit through the excel file generated by COBie. So far, the design works based on openbim work flow has been completed.
Detailed description of openBIM on the project
OpenBIM is characterized by the openness of data, which solves the problem that information cannot be delivered between various software in traditional architectural project design and helps designers of different disciplines to carry out more convenient collaborative design. This Project made full use of this feature of OpenBIM. In the design stages, different software models were imported into Revit in open data format (such as IFC) for integration, and models in open data format were exported from Revit to other analysis software and detailed design software for the further design works.
In the detail design stage, detail design models in different data formats from different software were integrated into the Revit model, and after coordination and optimization, designers exported the integrated Revit model in gbXML data format, and then imported the gbXML data format file into Ecotect Analysis for building performance analysis and wind environment simulation analysis, which ensured that the model used in the simulation is completely consistent with the design model and avoided the workload of repeated modeling. Similarly, by exporting the integrated Revit model in IFC data format and then importing IFC data format files into Pathfinder for personnel evacuation simulation analysis, important components related to evacuation, such as doors, windows, stairs, etc., could directly converted from Revit model to Pathfinder model, and necessary information for exits could be directly developed on the model, which not only ensured the accuracy of the evacuation simulation model, but also greatly reduced the workload of designers.
In addition, in the construction design stage and deepening design stage, the Revit model of steel structure was exported to TEKLA in IFC data format. After the designer completed the detailed design of this part, the steel structure model in TEKLA was imported into Revit in IFC data format for model integration and optimization.
In order to integrate the models of different disciplines from various software, models were imported into Navisworks in IFC file format. In this way, the import process was relatively shortened and the number of missing entities was minimized.
As listed in the contract, the outcome of design works were delivered to client and construction team in IFC file format and Excel file format by COBie extensions. In this way, the handover process of project information was highly efficient and all the information generated from design stages was classified and storage properly.
The main advantage of this workflow which adopts openBIM standard is that the workload of repeating works and the inconsistencies between the models generated from various software could be avoided.
Software ecosystem map
openBIM Supporting Evidence
Benefits from using openBIM
First, in the Project, OpenBIM provides a transparent and open workflow, where the data source is one and only, that is, the model data from the Revit central file, which avoids repetitive work and human errors caused by multiple inputs of the same data, thus reducing a large amount of workload and saving labor costs.
Secondly, OpenBIM's open data format helps designers to use the Revit model for simulation and analysis more conveniently, which enables one designer to complete the work that usually requires several designers to complete. In the Project, thanks to OpenBIM's workflow mode, a total of more than RMB 1 million of labor costs have been saved.
Thirdly, the OpenBIM-based workflow enables the design of the Project to be completed one month earlier than expected.
Last but not least, because all models were handover in IFC file format, the client could easily view models of all disciplines in a singe platform or software.
BIM Uses were defined on the project
Stakeholders
Guangdong Airport Group Engineering Construction Command, Southeast workspace , Baiyun International Airport , Guangzhou , Guangdong , China,
http://www.gdairport.com, Construction side of employer, Ma Lei （+86 13600493717）Email：mal@gdairport.com
CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION. CO., LTD., No. 8, Kehuijingu 2nd Street, No. 99, Kexue Avenue, Huangpu District, Guangzhou, Guangdong, China,
http://8bur.cscec.com/, EPC, Fang Suchang (+86 13603094978)
