Chennai Annadurai International Airport expansion and modernization project in Tirusulam, 7km south of Chennai, is a design-to-fabrication steel project carried out completely within Tekla BIM (Building Information Modelling) 3D software environment.
Engineering and model datawere used at the earlier stages of the project takes full advantage of early procurement and optimum use of material. Rapidly producing shop drawings and managing the project timeline were both accomplished using Tekla Structures software, which proved to be highly productive.
With the application of Tekla Structures software in the Chennai Airport Expansion project, the material wastage was reduced by 3.5 to 4% by early material procurement and productivity was increased by more than 30%. During the fabrication stage drawing details were derived from the Tekla model for fabrication and they were seamlessly used with in-house fabrication data package to produce NC files for use in CNC machines and to manipulate bill of material data. By using the center of gravity from the Tekla model, the jigs were prepared for each segment of trusses to ensure perfect alignment and geometry during assembly.
Sardar Vallabhbhai Patel International Airport is India’s eighth busiest airport with an average of 250 aircraft movements a day. It services the metropolitan areas of two cities in the State of Gujarat – Ahmedabad and Gandhinagar. The airport is located 8km from the Ahmedabad Railway Station and is spread over an area of 1,124 acres (4.55km2) with the runway measuring 11,811 ft (3,600m).
The airport currently consists of four terminals: domestic, international, an additional terminal for secondary traffic and a cargo terminal. The cargo and the domestic terminals use the same airside facilities but are physically separated on the landside, requiring a five-minute drive between them whereas the new International terminal has been constructed on the opposite of the land side of the domestic terminal and both the terminals are interconnected by an underground moving walkway.
The airport was under renovation and now has 45 parking bays and both the international and domestic terminals have four aero-bridges each. The new terminal has been modelled based on the Singapore Changi Airport. It has half kilometre long moving walkway which connects the two terminals making the changeover of flights hassle-free. Tekla Structures has been used for modelling and detailing of the entire structure. The main feature of the project was its shape, the shape of the rafter. Tekla Structures made it simple and easy to complete the project within specified time. The software was used to model the complex frame work, thus ensuring highly effective detailing and optimized fabrication.