According to reports, India’s population is expected to reach 1.4 billion by 2025, surpassing China. This brings to light the need for more food, housing and public transport. While building new infrastructure is critical, it is also important to refurbish existing buildings, bridges and railways. The KPMG- NAREDCO report states that India can be the world’s third-largest global construction market by 2030, if technology is integrated in the right manner.
At this point, several developed economies like US, UK, UAE, China, France and Italy have been using BIM to improve efficiency and cost-effectiveness in the construction industry. Though India is gradually warming up to this technology, much more needs to be done.
A report by the Ministry of Statistics and Programme Implementation, Government of India, says that at least 355 projects have seen a cost overrun of Rs 3.88 lakh crore, and about 552 projects have faced time escalation. NITI Aayog adds that BIM could save up to 20% of the project cost by shortening the construction time.
Apart from housing projects, the government is also deliberating on the use of BIM technology for the construction of national highways, and greenfield airport and metro projects.
The significance of BIM
A successor to traditional computer-aided design (CAD), BIM serves all stakeholders along the value chain. ‘The software and control layer resides within an architecture of supporting technologies. At the bottom are embedded sensors that can conduct real-time status monitoring on any part of a building, during both construction and operations.
BIM enables gathering of information related to design, functionality and life span in forms which can be shared by the participants in the project. This helps all stakeholders – designers, contractors, and suppliers have a current view of the progress of the building. 3D representation is a key element of BIM, however this can be widened to 4D, which includes time frames, and 5D.
Traditionally, constructing a building is a tedious affair – it requires multiple blueprints and models that have to be exchanged between multiple designers, engineers and contractors. However, it is now possible to eliminate multiple layers by providing a BIM model for the entire lifecycle of a project.
Constructible BIM enables the creation and management of accurate and detailed constructible 3D structural models.The term ‘constructible’ defines the ease and efficiency with which structures can be constructed from a 3D model. If a BIM model is accurate and detailed enough, the constructability of a building can be tested in advance to make sure that errors, rework, wastage is minimised and the project is predictably profitable.
Larsen and Toubro has mastered the application of BIM – from conceptual presentation to detail architecture, service integration, building monitoring post construction. It offers turnkey design and construction of large townships and high-rise apartments with expertise in all round infrastructure and modern amenities thereby meeting varied customer needs.
Projects in India using BIM
Personal Rapid Transit in Amritsar, the scheduling, planning, designing, construction was all done using BIM technology.
Delhi Metro Rail used BIM technology for construction of the underground track.
The Bangalore Airport has identified Autodesk BIM 360 as the design and planning of platform for the construction of the Terminal 2.
The Nagpur Metro Rail Corporation announced for its project the integration of 5D BIM technology.
Airport Authority of India (AAI) has identified BIM to design the construction of the New Integrated Terminal Building of the Guwahati Airport. Helmed by renowned architecture firm,Design Forum International and AECOM, this project will leverage Autodesk BIM solution, Revit to design the new terminal.
IBIMA(India Building Information Modelling Association) is the leading professional national society for Building Information Modelling and Digitalization in Indian AECO-Architecture, Engineering, Construction and Operation sector. The organisation offers its members extensive support, learning opportunities and best practices for BIM, in an Indian context, while maintaining great relations with their international partners.
BIM outsourcing from India
BIM work-sharing in India has become a top choice for overseas based companies like General Contractors, Design Consultants, Architects and Developers. A variety of BIM services have been outsourced to Indian companies which include: 3D BIM Services, Scan to BIM services, Drawing Production, Virtual Reality, 4D Construction sequencing, 5D Cost Integration and Facility Management.
Some of the leading BIM companies that offer their services to overseas companies include Virtual Design Studio, Sanveo, Trimble, and ASC Technology.
World over, BIM is spearheading digital transformation in the construction industry. The Indian BIM providers have gained expertise through their work for overseas companies. It is now time for Indian Real estate developers to leverage this expertise for timely and cost effective completion of their projects.
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