Designing Construction 4.0 Activities for AEC Classrooms
Abstract
:1. Introduction
2. Construction 4.0 and Formal Education in Civil Engineering
2.1. Research Design
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- Analysis of the available literature.
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- Identification of research gaps and thus, of potential activities.
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- Identification of spaces and facilities.
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- Development and implementation of an exemplary set of activities for the Construction 4.0 classroom.
- Industrial production (prefabrication, additive manufacturing, offsite manufacture and robotic assembly).
- Cyber-physical systems (autonomous systems, digital twins, smart infrastructure).
- Digital technologies (BIM, extended realities, interoperability, cloud computing, blockchain, AI, computer vision, etc.).
2.2. Literature Review: Industrial Production
2.3. Literature Review: Cyber-Physical Systems
2.4. Literature Review: Digital Technologies
2.5. Literature Review: The Role of Makerspaces
2.6. Literature Review: Discussion
3. Construction 4.0 Path for the New Degree on Civil Engineering Technologies
3.1. Civil Engineering Technologies, a New Degree
3.2. Individual Learning Paths
3.3. Proposal of Construction 4.0-Rich Complementary Learning Path for the New Degree
4. Current Developments and Implementations of the Learning Path
4.1. Cornerstone Projects. Maths and Arts
4.2. Core Workshops. Science, Technology, Engineering
4.2.1. Sensor-to-Cloud
4.2.2. D Printing
4.2.3. Scan-to-BIM
4.2.4. BIM-to-Robotics
4.3. Capstone Projects. Science, Technology, Engineering, Arts, Maths
- The fabrication level, in which participants create and develop DT following a tutored path, a set of lectures and a briefed project. This part may take up to 20 h of guided and autonomous work. At this level, the problems are mathematically simple and the focus is on the development of the three-dimensional DT (physical, virtual and connection). In this part, lectures and guidance correspond to 50% of the total time (10 h).
- The twinning level, in which students develop applications with added mathematical and physical complexity as well as a higher level of realism. These applications may include other layers such as VR/AR, BIM-enriched interactions or predictive capabilities. This part may take more than 20 h of autonomous work. Concepts of Interactive Object-Oriented Programming (OOP) and three dimensional computational geometry tools are needed. Thus, advanced lectures on such topics are also given. In the ideal scenario of students that have already performed cornerstone projects and workshops, the total required time for the development of digital twins reduces substantially.
4.4. Relevance of the Activities from the Construction 4.0 Perspective
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- Workshops:
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- Sensor-to-cloud represents a journey from physical-to-digital. AEC classrooms are filled with countless attempts of understanding both natural and built environment. Practically every single magnitude studied in AEC is prone to be measured with sensors. Acquiring basic skills on measurement is thus, very relevant.
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- Three-dimensional (3D) printing represents a journey from a virtual space to the materialization of an object. The workshop provides not only a better understanding of the virtual space but also, it sets some realisms to the boundaries provided by 3D printers. In AEC, physical boundaries are always present, the built environment is limited by the capacities of the means.
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- Scan-to-BIM represents a journey from physical magnitudes to a BIM-compatible space. The workshop shows one of the most promising technologies for the built environment, which is laser scanning. The workshop provided a real time illustration of how points are measured with sensors (lasers, accelerometers in this case) and virtualized with computational geometry tools. In AEC, the use of “as-built” entities in BIM software presumes an understanding of these principles.
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- BIM-to-Robotics represents a journey from virtual to physical within a BIM-compatible space. The workshop introduces the potential of automation in construction with accessible and affordable equipment. It illustrates to AEC students what has been more traditionally present in other engineering branches, instrumentation and control of machines.
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- Capstone projects: Digital twins as pedagogical vehicles represents a comprehensive activity. Both the development as the usage are didactic. The flow of information goes from physical-to-digital and vice versa. Sensors are needed, Virtual spaces are needed and a seamless communication between both realms is required. For this purpose, programming interactively using time and space is a requirement. Digital twins also represent one of the most promising conception in the built environment for a better understanding and management of the assets at design, construction and maintenance stages.
5. Conclusive Remarks and Outlook
- Current state-of-the-art technologies for Construction 4.0 from an industry perspective were identified and analyzed. Specific educational applications of these technologies based on affordable, accessible and scalable tools were also identified. The categorization of the technologies is according to the definition of Sawhney et al. [1]: industrial production, cyber–physical systems and digital technologies. The literature review shows educational gaps as well as educational needs for the systematic use of tools in AEC classrooms. On the one hand, industrial production requires massive deployment of facilities, which is a drawback for implementation. On the other hand, digital technologies are quite established in the educational literature. In between, it is pinpointed how cyber-physical systems represent an accessible and affordable way of bridging the gap in AEC classrooms when it comes to implementing Construction 4.0 activities in which both Physical and Virtual realms are intertwined.
- One of the key takeaways of the educational activities of the Laboratory in recent years is the integrative power of digital twins. The development of basic yet complete digital twins presumes knitting together many of the Construction technologies in a single project. Moreover, it presumes to acquire a basic yet comprehensive level of understanding of how information flows from the physical to the virtual realms or vice versa.
- It is observed that Civil Engineering students are lacking specific knowledge for their proper inclusion in the Construction 4.0-related job market. This aspect is being addressed by educators and schools at a rather slow pace. Civil engineering schools are unevenly integrating Construction 4.0 activities in existing curricula. Coding and computational geometry tools are cornerstone skills that are required throughout the development of other technology-rich workshops.
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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Term/Academic Year | 1st | 2nd | 3rd | 4th |
---|---|---|---|---|
Fall | Economics, business and legislation Metric geometry and representation systems Chemistry Mathematics Physics | Differential geometry and differential equations Mobility and transport networks Probability and Statistics Strength of materials and structures Urbanism | Numerical modeling Soil Mechanics Structural Analysis Structural Technology (I) Surface and underwater hydrology | 5 optional courses among the following: Risk assessment for natural hazards Instrumentation and Remote Sensing Machine Learning and data science Programming for Science and Engineering Sustainability, social and environmental impact |
Spring | Algebra and Geometry Calculus Construction Materials Geology Rational Mechanics | Environmental Engineering Geomatics and Geographic Information Hydraulics and Hidrology Mathematical models in physics Roads and Railways | Communication Techniques Construction procedures and electrotechnics Geotechnical and geological engineering Maritime and Port Engineering Structural technology (II) | Final Bachelor’s project Business and Administration 2 more optional subjects among the following: Software tools for civil engineering Urban mobility and decision support Digital Twins and Augmented Reality Entrepreneurship and Innovation |
Concept | Tools |
---|---|
Space | The Canvas, The unit: Pixels, The coordinates |
Time | Frames per second, The Unit: Milliseconds, Frame Rate |
Geometrical Entities | Points, Lines, Vectors, Rectangles, Squares, Circles, Triangles |
Instructions | Data types, If/then/Else, For, While, Functions |
Format | Background, RGB, Color, Fill, Stroke |
Movement | Translation, Rotation |
Concept | Tools |
---|---|
Space | The virtual 3D space. Grasshopper |
Geometrical Entities | Points, Lines, Vectors, Surfaces, Volumes, Meshes |
The namespace | Rhino.Geometry |
Entities | Functions, Derivatives, Tangent planes, Gradient Vector |
Concept | Tools |
---|---|
Basic circuitry | LED, Knob |
Sensors | Analog (LDR, Accel) Digital (Laser, Ultraound) |
Actuators | Servomotors, Motors |
Time | The Unit: Milliseconds, Frame |
Calibration | Displacement and rotation |
Cloud Services | IoT concepts, Smartlab, JSON |
Concept | Tools |
---|---|
Space | The virtual 3D space. Grasshopper |
3D Materials | Types, density, support material |
Maths | Parametric geometry |
Concept | Tools |
---|---|
Entities | Planes, spheres, corners |
Scanner | Description and use |
Identification | Fit-to-Geometry |
Concept | Tools |
---|---|
Space | The virtual 3D space. Grasshopper |
Virtual geometry | Rotation of objects using vectors and planes |
Physical Geometry | Understanding of coupled servomotors. |
Virtual-to-Physical Identification | Synchronized movement of the asset |
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Chacón, R. Designing Construction 4.0 Activities for AEC Classrooms. Buildings 2021, 11, 511. https://doi.org/10.3390/buildings11110511
Chacón R. Designing Construction 4.0 Activities for AEC Classrooms. Buildings. 2021; 11(11):511. https://doi.org/10.3390/buildings11110511
Chicago/Turabian StyleChacón, Rolando. 2021. "Designing Construction 4.0 Activities for AEC Classrooms" Buildings 11, no. 11: 511. https://doi.org/10.3390/buildings11110511