The construction industry has undergone significant transformation, evolving from manual labor to industrialization and now to informatization. It has progressed from hand-drawn models to 2D designs, and today, it embraces the BIM (Building Information Modeling) intelligent information management system. BIM technology has introduced a new approach that reduces waste and carbon emissions in the construction sector by leveraging information technology and innovative business models. The rapid advancement of information technology continues to drive the industry toward innovation and smart construction. Technology plays a crucial role in promoting low-carbon development, which is set to revolutionize the energy utilization model rooted in fossil fuels, leading to a new era of sustainable industrial progress.
1. BIM – The Big Data Backbone of the Construction Industry
At the heart of BIM lies information, making it a natural product of the big data era. Serving as the construction industry’s source code, BIM manages not only essential project data but also handles vast quantities of information across projects. Given that construction is the largest industry in terms of data volume, the widespread adoption of BIM is propelling the industry into the age of big data.
BIM enables simulation of project timelines and cost control throughout design and construction phases. It integrates stakeholders such as owners, designers, contractors, suppliers, and manufacturers, facilitating seamless project delivery. Beyond coordination, BIM enhances work quality, productivity, and communication within business structures. By applying information technology and innovative business practices, BIM reduces waste and lowers carbon emissions throughout the construction process.
2. Construction Industrialization – Bringing Manufacturing Methods Back
Construction industrialization transforms the traditional “design and on-site construction” model into “design, factory manufacturing, and on-site assembly.” Buildings are essentially products manufactured through this process. The goal is to align construction with manufacturing industry standards. While steel structure installation and equipment assembly have largely been industrialized, civil engineering still faces challenges in adopting the “design, factory manufacturing, on-site assembly” approach.
BIM technology provides a robust platform for both early construction phases and later maintenance of industrial projects. By establishing comprehensive layout and prefabricated component libraries, BIM standardizes designs, reduces errors, and improves drawing efficiency. Particularly in prefabricated component processing and installation, BIM boosts efficiency significantly. For example, combining RFID identification with BIM enables dynamic visualization and management of prefabricated building processes, covering manufacturing, transportation, and assembly stages.
Driven by BIM, construction factories have become feasible. BIM, acting as the industry’s source code, defines each component, its behavior, and information flow, facilitating effective communication between machines and humans.
Industrialization must begin with standardization. Traditional design and construction methods often lack the ability to solidify and improve outcomes. BIM fills this gap by allowing prefabrication of components such as load-bearing walls, beams, columns, floors, and stairs in factories, which are then assembled onsite. Leveraging BIM’s component-based features and involving users enables refined spatial designs that include functional storage spaces like lobbies, bathrooms, and cabinets. This prefabricated industrial model transforms traditional concrete-heavy buildings into quickly assembled, aesthetically refined structures, akin to assembling high-quality car parts of various specifications.
Conventional low-carbon construction methods—such as material substitution, recycling, new technologies, and resource utilization—have yet to fundamentally change the extensive construction approach. The industry’s unique challenges, including non-standard products, complexity, and large data volumes, have historically led to inefficiencies like idle labor, overstocked materials, and poorly timed equipment delivery.
Today, the rise of building information technology and improved information awareness are accelerating resource integration across multiple disciplines within China’s construction market. This integration fosters industrial upgrades, intensive construction management, resource conservation, and comprehensive ecological industry chain collaboration, marking a key research focus.
3. Cross-Boundary Resource Integration
The rapid expansion of BIM will inevitably reshape the industry landscape. Advancements in big data, cloud computing, the Internet of Things (IoT), GIS, mobile internet, and cross-sector resource integration present challenges and opportunities for prefabricated construction. As the architectural source code, BIM is essential for breaking down barriers and optimizing resource integration.
BIM integrated with IoT technologies assigns unique identities to every brick and debris, maximizing their value. Coupled with big data and cloud computing, BIM enables designers to mine large databases efficiently to find valuable information. The fusion of BIM and GIS fosters a connected global community.
IoT connects physical objects through networks, extending the Internet’s capabilities for data exchange and communication. BIM combined with IoT incorporates technologies such as RFID, infrared sensors, GPS, laser scanning, and GIS into a comprehensive system that fully integrates the construction industry chain, streamlining development and implementation.
BIM is central to the IoT in construction. It provides the foundational information needed for IoT data extraction and updating, ushering in a new era of smart construction. By embedding chips into equipment and components, combining them with IoT, and integrating physical and IT infrastructure, stakeholders can monitor, manage, and control equipment efficiently across networks.
The combination of BIM and big data revolutionizes architectural archive management. Traditional searches relying on titles, abstracts, and keywords become obsolete, replaced by BIM’s organized models that support full-text search and attribute-level component location. Loading project and business data into BIM enhances efficiency, quality, and management capabilities by making data storable, searchable, computable, and traceable.
The creation of extensive BIM case data warehouses has expanded information depth and scope, facilitating cross-industry collaboration, reducing knowledge acquisition costs, and fostering innovation.
Cloud computing allows project participants to rent computing resources, software, and systems via the internet, eliminating the need for expensive IT infrastructure. As Jonathan Mallie stated, “BIM enables virtual design and construction, while cloud computing helps us better implement this process.”
The integration of BIM and GIS has attracted significant attention. While GIS focuses on geographic spatial information, BIM emphasizes detailed building data. Their combination supports diverse applications, including urban and landscape planning, architectural design, tourism, 3D mapping, environmental and thermal simulations, mobile telecommunications, disaster management, national security, navigation, training simulators, robotics, and indoor navigation.
4. Low-Carbon Technology
Low-carbon technology is vital for building a sustainable society. Societal demand, government policies, corporate R&D, and cultural guidance all contribute to technology-driven low-carbon development. BIM, construction industrialization, and IoT collectively enable the realization of low-carbon buildings.
In the global shift toward a low-carbon economy, the construction industry must recognize that technology is the key driver of this transformation. Low-carbon technology is set to overturn fossil-fuel-based industrial development, revolutionizing energy usage.
Carbon emissions throughout a building’s lifecycle include emissions from materials, planning and design, construction and installation, usage and maintenance, and demolition and cleanup. BIM helps improve carbon emission and energy efficiency at every stage by enabling standardized design, refined construction, information-based management, and factory-style industrial production.
By employing BIM for simulation and data analysis, buildings can achieve energy conservation, quality assurance, and low-carbon goals. This approach focuses on effectively utilizing natural resources and renewable energy rather than relying solely on complex, high-energy-saving technologies. For instance, BIM simulations optimize ventilation, lighting, and air quality, maximizing natural ventilation and lighting to reduce emissions significantly during construction and occupancy.
Information technology enables low-carbon development to be cost-effective, straightforward, and naturally cyclical, forming an ecosystem that embodies a new low-carbon philosophy.
The convergence of BIM, big data, cloud computing, IoT, GIS, and mobile internet has set the ancient construction industry on a technological path where resources are reallocated efficiently, and energy is effectively utilized and monitored. This rapid information technology growth creates horizontal and vertical information symmetry within the sector.
In this technological era, low-carbon buildings require comprehensive management strategies covering lifecycle planning, organizational support, technology assurance, and energy-saving performance evaluation to ensure successful implementation in China’s construction industry. The ongoing technological advancements continue to drive architectural innovation and transition smart construction into reality.
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